Initial implementation of JavaCompiler using Oracle javac toolbox. Not yet finished.
"{ Package: 'stx:libjava/tools' }"
PPCompositeParserTest subclass:#JavaParserIITests
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'Languages-Java-Tests-Parser'
!
!JavaParserIITests methodsFor:'accessing'!
parserClass
^ JavaParserII
"Modified: / 09-03-2012 / 23:27:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests methodsFor:'parsing'!
fail: aString rule: aSymbol
^super fail: (JavaScanner for: aString) rule: aSymbol
"Created: / 14-03-2012 / 22:51:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
parse: aString rule: aSymbol
^super parse: (JavaScanner for: aString) rule: aSymbol
"Created: / 14-03-2012 / 22:51:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests methodsFor:'testing'!
testCompilationUnit1
self parse: 'package foo;
public class CU1 {}'
rule: #compilationUnit
!
testCompilationUnit2
self parse: 'package foo;
import foo.Bar;
public class CU2 {
}'
rule: #compilationUnit
!
testCompilationUnit3
self parse: 'class myfirstjavaprog
{
public static void main(String args[])
{
System.out.println("Hello World!!");
}
}'
rule: #compilationUnit
!
testCompilationUnit4a
self parse: '
public class OddEven {
private int input;
public static void main(String[] args) {
OddEven number = new OddEven();
number.showDialog(); }
public void showDialog() {
try {
input = Integer.parseInt(JOptionPane.showInputDialog("Please Enter A Number"));
calculate();
} catch (NumberFormatException e) {
System.err.println("ERROR: Invalid input. Please type in a numerical value.");
}
}
private void calculate() {
if (input % 2 == 0) {
System.out.println("Even");
} else {
System.out.println("Odd");
}
}
}'
rule: #compilationUnit
"Created: / 11-03-2012 / 13:08:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testCompilationUnit4b
self parse: '
public class OddEven {
public static void main(String[] args) {
}
private void calculate() {
}
}'
rule: #compilationUnit
"Created: / 11-03-2012 / 13:08:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testCompilationUnit4c
self parse: '
public class OddEven {
public static void main(String[] args) {
OddEven number = new OddEven();
number.showDialog();
}
public void showDialog() {
try {
input = Integer.parseInt(JOptionPane.showInputDialog("Please Enter A Number"));
calculate();
} catch (NumberFormatException e) {
System.err.println("ERROR: Invalid input. Please type in a numerical value.");
}
}
private void calculate() {
if (input % 2 == 0) {
System.out.println("Even");
} else {
System.out.println("Odd");
}
}
}'
rule: #compilationUnit
"Created: / 11-03-2012 / 13:09:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testCompilationUnit5
self parse: 'class myfirstjavaprog
{
public myfirstjavaprog() {
}
public static void main(String args[])
{
System.out.println("Hello World!!");
}
}'
rule: #compilationUnit
!
testCompilationUnit6
self parse: '
package stx.libjava.tests;
class CU
{
}'
rule: #compilationUnit
"Created: / 15-03-2012 / 22:27:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testCompilationUnit7a
self parse: '
package stx.libjava.tests;
import java.util.Test;
class CU
{
}'
rule: #compilationUnit
"Created: / 15-03-2012 / 22:28:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testCompilationUnit7b
self parse: '
package stx.libjava.tests;
import java.util.*;
class CU
{
}'
rule: #compilationUnit
"Created: / 15-03-2012 / 22:28:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testCompilationUnit7c
self parse: '
package stx.libjava.tests;
import java.util.ArrayList;
import java.util.Set;
class CU
{
}'
rule: #compilationUnit
"Created: / 15-03-2012 / 22:28:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testFormalParameters1
self
parse: '
(String s, Object parameterType)
'
rule: #formalParameters
!
testFormalParameters2
self
parse: '
(Object ... parameterType)
'
rule: #formalParameters
!
testFormalParameters3
self
parse: '(String name, Class<?>... parameterTypes)
'
rule: #formalParameters
!
testFormalParameters4
self
parse: '(int[] fp)
'
rule: #formalParameters
"Created: / 11-03-2012 / 00:05:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testFormalParameters5
self
parse: '(int fp[])
'
rule: #formalParameters
"Created: / 11-03-2012 / 00:06:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testFormalParameters6a
self
parse: '()'
rule: #formalParameters
"Created: / 11-03-2012 / 11:44:28 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testFormalParameters6b
self
parse: ' ( ) '
rule: #formalParameters
"Created: / 11-03-2012 / 11:44:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testFormalParameters7
self
parse: '(int a)'
rule: #formalParameters
"Created: / 11-03-2012 / 11:44:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testFormalParameters7b
self
parse: '(Integer a)'
rule: #formalParameters
"Created: / 11-03-2012 / 11:46:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testFormalParameters8
self
parse: '(int a, char c)'
rule: #formalParameters
"Created: / 11-03-2012 / 11:45:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testImportDeclaration1
self parse: 'import foo.Top;'
rule: #importDeclaration
!
testImportDeclaration2
self parse: 'import foo.Top2.*;'
rule: #importDeclaration
!
testMethodDeclaration3
self
parse: '
public void getMethod(String s, Object ... parameterType)
{
}
'
rule: #methodDeclaration
!
testMethodDeclaration5
self
parse: '
public void getMethod(String[] s)
{
}
'
rule: #methodDeclaration
"Created: / 11-03-2012 / 00:04:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration6
self
parse: '
public void getMethod(String s[])
{
}
'
rule: #methodDeclaration
"Created: / 11-03-2012 / 00:05:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration9
self
parse: '
public Map<Integer,Map<String,String>> getMap()
{
}
'
rule: #methodDeclaration
"Created: / 16-03-2012 / 23:26:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testPackageDeclaration1
self parse: 'package foo;'
rule: #packageDeclaration
!
testPackageDeclaration2
self parse: 'package foo.Bar;'
rule: #packageDeclaration
!
testPackageDeclaration3
self fail: 'package ;'
rule: #packageDeclaration
!
testQualifiedName1
self assert: (self parse: 'a.a' rule: #qualifiedName) = 'a.a'
"Modified: / 15-12-2012 / 22:38:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testQualifiedNameForImport
self assert: (self parse: 'a.a' rule: #qualifiedNameForImport) = 'a.a'
"Created: / 15-12-2012 / 22:39:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testQualifiedNameForImport2
self assert: (self parse: 'a.a.*' rule: #qualifiedNameForImport) = 'a.a.*'
"Created: / 15-12-2012 / 22:40:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testQualifiedNameForImport3
self assert: (self parse: 'a.*' rule: #qualifiedNameForImport) = 'a.*'
"Created: / 15-12-2012 / 22:40:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testUnaryExpression1
self
parse: 'a'
rule: #unaryExpression
"Modified (format): / 11-03-2012 / 13:41:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_01
self
parse: '{ }'
rule: #block
"Created: / 16-03-2012 / 00:40:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_02
self
parse: '{ Syste.out.println(); }'
rule: #block
"Created: / 16-03-2012 / 00:41:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_03
self
parse: '{ { Syste.out.println();} }'
rule: #block
"Created: / 16-03-2012 / 00:41:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_04
self
parse: '{ Syste.out.println("{"); }'
rule: #block
"Created: / 16-03-2012 / 00:41:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_05
self
parse: '{ Syste.out.println("\"{"); }'
rule: #block
"Created: / 16-03-2012 / 00:42:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_06
self
parse: '{ Syste.out.println(''}''); }'
rule: #block
"Created: / 16-03-2012 / 00:51:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_07
self
parse: ' {
super(annotationType.getName() + " missing element " + elementName);
this.annotationType = annotationType;
this.elementName = elementName;
} '
rule: #block
"Created: / 16-03-2012 / 00:53:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_08
self
parse: ' {
/* {{{ */
} '
rule: #block
"Created: / 16-03-2012 / 01:13:37 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_block_09
self
parse: ' {
// {{{
} '
rule: #block
"Created: / 16-03-2012 / 01:15:37 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests methodsFor:'testing-annotations'!
test_annotation_01
self
parse: '@Documented'
rule: #annotation
"Created: / 12-03-2012 / 16:11:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_annotation_02
self
parse: '@Target ( ElementType.ANNOTATION_TYPE)'
rule: #annotation
"Created: / 12-03-2012 / 16:11:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests methodsFor:'testing-classes'!
testClassBody1
self
parse: '{ public method(int m) { } }'
rule: #classBody
"Created: / 10-03-2012 / 13:37:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassBody2
self
parse: '{ public static void main(int m) { } }'
rule: #classBody
"Created: / 10-03-2012 / 23:58:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassBody3
self
parse: '{ public static void main(int m) { print(); } }'
rule: #classBody
"Created: / 10-03-2012 / 23:59:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassBody4
self parse: '
{
public static void main(String args[])
{
System.out.println("Hello World!!");
}
}'
rule: #classBody
"Created: / 11-03-2012 / 00:00:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassBody5
self parse: '
{
public int i;
}'
rule: #classBody
"Created: / 11-03-2012 / 13:15:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration1
self parse: '
class myfirstjavaprog
{
public static void main(String args[])
{
System.out.println("Hello World!!");
}
}'
rule: #classDeclaration
"Modified: / 10-03-2012 / 13:31:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration15
self parse: '
class XXX
{
} // trailing comment
'
rule: #compilationUnit
"Created: / 16-03-2012 / 10:27:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration2
self parse: '
//aaa
class myfirstjavaprog
{
}'
rule: #normalClassDeclaration
"Created: / 10-03-2012 / 13:25:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 14-03-2012 / 10:39:03 / jv"
!
testClassDeclaration3
self parse: '
@interface MyFirstAnnotation
{
}'
rule: #annotationTypeDeclaration
"Created: / 12-03-2012 / 16:18:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration3b
self parse: '
@interface MyFirstAnnotation
{
}'
rule: #interfaceDeclaration
"Created: / 12-03-2012 / 16:20:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration3c
self parse: '
@interface MyFirstAnnotation
{
}'
rule: #classOrInterfaceDeclaration
"Created: / 12-03-2012 / 16:20:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration3d
self parse: '
@Target ( ElementType.ANNOTATION_TYPE )
@TargetX ( ElementTypeX.ANNOTATION_TYPE )
public @interface MyFirstAnnotation
{
}'
rule: #classOrInterfaceDeclaration
"Created: / 12-03-2012 / 16:21:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration3e
self parse: '
@Target
public @interface MyFirstAnnotation
{
}'
rule: #classOrInterfaceDeclaration
"Created: / 12-03-2012 / 17:03:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration3f
self parse: '
@Target ( ElementType.ANNOTATION_TYPE )
public interface IInterface
{
}'
rule: #classOrInterfaceDeclaration
"Created: / 15-03-2012 / 10:38:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration3g
self parse: '
@Target
public @interface MyFirstAnnotation
{
}'
rule: #classOrInterfaceDeclaration
"Created: / 15-03-2012 / 10:38:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testClassDeclaration4a
self parse: '
public enum ElementType {
/** Class, interface (including annotation type), or enum declaration */
TYPE,
/** Field declaration (includes enum constants) */
FIELD,
/** Method declaration */
METHOD,
/** Parameter declaration */
PARAMETER
}
'
rule: #enumDeclaration
"Created: / 15-03-2012 / 21:14:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration1
self
parse: 'public void aMethod() { }'
rule: #methodDeclaration
"Modified: / 15-03-2012 / 09:44:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration2
self
parse: 'public aMethod() { }'
rule: #methodDeclaration
!
testMethodDeclaration4
self
parse: 'public method(int m) { }'
rule: #methodDeclaration
"Created: / 10-03-2012 / 13:35:53 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration4b
self
parse: 'public method(int m) { }'
rule: #classBodyDeclaration
"Created: / 10-03-2012 / 13:36:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration7
self
parse: 'public Set<E<T1,T2>> m() { }'
rule: #classBodyDeclaration
"Created: / 15-03-2012 / 23:06:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration7b
self
parse: 'public Set<E<T1,T2>> m() { }'
rule: #classBodyDeclaration
"Created: / 15-03-2012 / 23:18:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testMethodDeclaration8
self
parse: 'public Map<String,String> m() { }'
rule: #classBodyDeclaration
"Created: / 15-03-2012 / 23:08:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_classModifiers_01
self
parse: '@Documented'
rule: #classModifiers
"Created: / 12-03-2012 / 16:17:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_classModifiers_02
self
parse: '
@Target ( ElementType.ANNOTATION_TYPE )
public'
rule: #classModifiers
"Created: / 12-03-2012 / 16:17:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests methodsFor:'testing-declarations'!
test_field_declaration_01
self
parse: 'public int i;'
rule: #fieldDeclaration
"Created: / 11-03-2012 / 13:13:53 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_field_declaration_02
self
parse: 'public int String;'
rule: #fieldDeclaration
"Created: / 11-03-2012 / 13:14:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_field_declaration_03
self
parse: 'protected static int f;'
rule: #fieldDeclaration
"Created: / 11-03-2012 / 13:14:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_formal_parameter_decl_01
self
parse: 'char c'
rule: #formalParameter
"Created: / 11-03-2012 / 11:56:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_formal_parameter_decl_01b
self
parse: 'final char c'
rule: #formalParameter
"Created: / 11-03-2012 / 12:20:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_formal_parameter_decl_02
self
parse: 'String s'
rule: #normalParameterDecl
"Created: / 11-03-2012 / 11:56:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_formal_parameter_decl_03
self
parse: 'java.lang.String s'
rule: #normalParameterDecl
"Created: / 11-03-2012 / 12:21:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_formal_parameter_decl_04
self
parse: 'final String s'
rule: #normalParameterDecl
"Created: / 11-03-2012 / 12:41:15 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_formal_parameter_decl_05
self
parse: 'String ... strings'
rule: #ellipsisParameterDecl
"Created: / 11-03-2012 / 13:03:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests methodsFor:'testing-types'!
testType_01
self
parse: 'char'
rule: #type
"Created: / 11-03-2012 / 11:53:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_02
self
parse: 'boolean[]'
rule: #type
"Created: / 11-03-2012 / 11:53:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_03
self
parse: 'String'
rule: #type
"Created: / 11-03-2012 / 11:54:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_04
self
parse: 'java.lang.Integer'
rule: #type
"Created: / 11-03-2012 / 11:54:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_05
self
parse: 'Boolean[]'
rule: #type
"Created: / 11-03-2012 / 11:54:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_06
self
parse: 'Boolean[][]'
rule: #type
"Created: / 11-03-2012 / 11:54:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_07
self
parse: 'java.lang.Boolean[][]'
rule: #type
"Created: / 11-03-2012 / 11:55:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_08
self
parse: 'Set<Map.Entry>'
rule: #type
"Created: / 15-03-2012 / 23:05:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
testType_09
self
parse: 'Set<Map.EntrySet<String,String>>'
rule: #type
"Created: / 15-03-2012 / 23:05:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests methodsFor:'tests-compilation units'!
test_compilation_unit_01a
self parse:'
@Retention(RetentionPolicy.RUNTIME)
public @interface Retention {
}
' rule: #interfaceDeclaration
"Created: / 12-03-2012 / 16:09:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_01aa
self parse:'
@Retention(RetentionPolicy.RUNTIME)
public @interface Retention {
}
' rule: #typeDeclaration
"Created: / 12-03-2012 / 18:25:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_01ab
self parse:'
@Retention(RetentionPolicy.RUNTIME)
public @interface Retention {
}
' rule: #compilationUnit
"Created: / 12-03-2012 / 18:25:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_01ac
self parse:'
package java.lang;
@Retention(RetentionPolicy.RUNTIME)
public @interface Retention {
}
' rule: #compilationUnit
"Created: / 12-03-2012 / 18:26:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_01ad
self parse:'
/** comment */
package java.lang;
/** comment */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.ANNOTATION_TYPE)
public @interface Retention {
}
' rule: #compilationUnit
"Created: / 12-03-2012 / 18:46:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_01b
self parse:'
/*
* Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package java.lang.annotation;
/**
* Indicates how long annotations with the annotated type are to
* be retained. If no Retention annotation is present on
* an annotation type declaration, the retention policy defaults to
* {@code RetentionPolicy.CLASS}.
*
* <p>A Retention meta-annotation has effect only if the
* meta-annotated type is used directly for annotation. It has no
* effect if the meta-annotated type is used as a member type in
* another annotation type.
*
* @author Joshua Bloch
* @since 1.5
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.ANNOTATION_TYPE)
public @interface Retention {
}
' rule: #compilationUnit
"Created: / 12-03-2012 / 16:09:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_01c
result := JavaParserII parse:'
/*
* Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package java.lang.annotation;
/**
* Indicates how long annotations with the annotated type are to
* be retained. If no Retention annotation is present on
* an annotation type declaration, the retention policy defaults to
* {@code RetentionPolicy.CLASS}.
*
* <p>A Retention meta-annotation has effect only if the
* meta-annotated type is used directly for annotation. It has no
* effect if the meta-annotated type is used as a member type in
* another annotation type.
*
* @author Joshua Bloch
* @since 1.5
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.ANNOTATION_TYPE)
public @interface Retention {
RetentionPolicy value();
}
'.
self assert: result isPetitFailure not.
"Created: / 12-03-2012 / 16:24:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_02a
result := JavaParserII parse:'
/*
* Copyright 2004-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/**
* Provides library support for the Java programming language
* annotation facility.
*
* @author Josh Bloch
* @since 1.5
*/
package java.lang.annotation;
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 20:55:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_03a
result := JavaParserII parse:'
/*
* Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package java.lang.annotation;
/**
* A program element type. The constants of this enumerated type
* provide a simple classification of the declared elements in a
* Java program.
*
* <p>These constants are used with the {@link Target} meta-annotation type
* to specify where it is legal to use an annotation type.
*
* @author Joshua Bloch
* @since 1.5
*/
public enum ElementType {
/** Class, interface (including annotation type), or enum declaration */
TYPE,
/** Field declaration (includes enum constants) */
FIELD,
/** Method declaration */
METHOD,
/** Parameter declaration */
PARAMETER,
/** Constructor declaration */
CONSTRUCTOR,
/** Local variable declaration */
LOCAL_VARIABLE,
/** Annotation type declaration */
ANNOTATION_TYPE,
/** Package declaration */
PACKAGE
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 21:13:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_04a
result := JavaParserII parse:'
/*
* Copyright 1999-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package java.lang;
import java.util.Random;
import sun.misc.FpUtils;
/**
* The class {@code StrictMath} contains methods for performing basic
* numeric operations such as the elementary exponential, logarithm,
* square root, and trigonometric functions.
*
* <p>To help ensure portability of Java programs, the definitions of
* some of the numeric functions in this package require that they
* produce the same results as certain published algorithms. These
* algorithms are available from the well-known network library
* {@code netlib} as the package "Freely Distributable Math
* Library," <a
* href="ftp://ftp.netlib.org/fdlibm.tar">{@code fdlibm}</a>. These
* algorithms, which are written in the C programming language, are
* then to be understood as executed with all floating-point
* operations following the rules of Java floating-point arithmetic.
*
* <p>The Java math library is defined with respect to
* {@code fdlibm} version 5.3. Where {@code fdlibm} provides
* more than one definition for a function (such as
* {@code acos}), use the "IEEE 754 core function" version
* (residing in a file whose name begins with the letter
* {@code e}). The methods which require {@code fdlibm}
* semantics are {@code sin}, {@code cos}, {@code tan},
* {@code asin}, {@code acos}, {@code atan},
* {@code exp}, {@code log}, {@code log10},
* {@code cbrt}, {@code atan2}, {@code pow},
* {@code sinh}, {@code cosh}, {@code tanh},
* {@code hypot}, {@code expm1}, and {@code log1p}.
*
* @author unascribed
* @author Joseph D. Darcy
* @since 1.3
*/
public final class StrictMath {
/**
* Don''t let anyone instantiate this class.
*/
private StrictMath() {}
/**
* The {@code double} value that is closer than any other to
* <i>e</i>, the base of the natural logarithms.
*/
public static final double E = 2.7182818284590452354;
/**
* The {@code double} value that is closer than any other to
* <i>pi</i>, the ratio of the circumference of a circle to its
* diameter.
*/
public static final double PI = 3.14159265358979323846;
/**
* Returns the trigonometric sine of an angle. Special cases:
* <ul><li>If the argument is NaN or an infinity, then the
* result is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a an angle, in radians.
* @return the sine of the argument.
*/
public static native double sin(double a);
/**
* Returns the trigonometric cosine of an angle. Special cases:
* <ul><li>If the argument is NaN or an infinity, then the
* result is NaN.</ul>
*
* @param a an angle, in radians.
* @return the cosine of the argument.
*/
public static native double cos(double a);
/**
* Returns the trigonometric tangent of an angle. Special cases:
* <ul><li>If the argument is NaN or an infinity, then the result
* is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a an angle, in radians.
* @return the tangent of the argument.
*/
public static native double tan(double a);
/**
* Returns the arc sine of a value; the returned angle is in the
* range -<i>pi</i>/2 through <i>pi</i>/2. Special cases:
* <ul><li>If the argument is NaN or its absolute value is greater
* than 1, then the result is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a the value whose arc sine is to be returned.
* @return the arc sine of the argument.
*/
public static native double asin(double a);
/**
* Returns the arc cosine of a value; the returned angle is in the
* range 0.0 through <i>pi</i>. Special case:
* <ul><li>If the argument is NaN or its absolute value is greater
* than 1, then the result is NaN.</ul>
*
* @param a the value whose arc cosine is to be returned.
* @return the arc cosine of the argument.
*/
public static native double acos(double a);
/**
* Returns the arc tangent of a value; the returned angle is in the
* range -<i>pi</i>/2 through <i>pi</i>/2. Special cases:
* <ul><li>If the argument is NaN, then the result is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a the value whose arc tangent is to be returned.
* @return the arc tangent of the argument.
*/
public static native double atan(double a);
/**
* Converts an angle measured in degrees to an approximately
* equivalent angle measured in radians. The conversion from
* degrees to radians is generally inexact.
*
* @param angdeg an angle, in degrees
* @return the measurement of the angle {@code angdeg}
* in radians.
*/
public static strictfp double toRadians(double angdeg) {
return angdeg / 180.0 * PI;
}
/**
* Converts an angle measured in radians to an approximately
* equivalent angle measured in degrees. The conversion from
* radians to degrees is generally inexact; users should
* <i>not</i> expect {@code cos(toRadians(90.0))} to exactly
* equal {@code 0.0}.
*
* @param angrad an angle, in radians
* @return the measurement of the angle {@code angrad}
* in degrees.
*/
public static strictfp double toDegrees(double angrad) {
return angrad * 180.0 / PI;
}
/**
* Returns Euler''s number <i>e</i> raised to the power of a
* {@code double} value. Special cases:
* <ul><li>If the argument is NaN, the result is NaN.
* <li>If the argument is positive infinity, then the result is
* positive infinity.
* <li>If the argument is negative infinity, then the result is
* positive zero.</ul>
*
* @param a the exponent to raise <i>e</i> to.
* @return the value <i>e</i><sup>{@code a}</sup>,
* where <i>e</i> is the base of the natural logarithms.
*/
public static native double exp(double a);
/**
* Returns the natural logarithm (base <i>e</i>) of a {@code double}
* value. Special cases:
* <ul><li>If the argument is NaN or less than zero, then the result
* is NaN.
* <li>If the argument is positive infinity, then the result is
* positive infinity.
* <li>If the argument is positive zero or negative zero, then the
* result is negative infinity.</ul>
*
* @param a a value
* @return the value ln {@code a}, the natural logarithm of
* {@code a}.
*/
public static native double log(double a);
/**
* Returns the base 10 logarithm of a {@code double} value.
* Special cases:
*
* <ul><li>If the argument is NaN or less than zero, then the result
* is NaN.
* <li>If the argument is positive infinity, then the result is
* positive infinity.
* <li>If the argument is positive zero or negative zero, then the
* result is negative infinity.
* <li> If the argument is equal to 10<sup><i>n</i></sup> for
* integer <i>n</i>, then the result is <i>n</i>.
* </ul>
*
* @param a a value
* @return the base 10 logarithm of {@code a}.
* @since 1.5
*/
public static native double log10(double a);
/**
* Returns the correctly rounded positive square root of a
* {@code double} value.
* Special cases:
* <ul><li>If the argument is NaN or less than zero, then the result
* is NaN.
* <li>If the argument is positive infinity, then the result is positive
* infinity.
* <li>If the argument is positive zero or negative zero, then the
* result is the same as the argument.</ul>
* Otherwise, the result is the {@code double} value closest to
* the true mathematical square root of the argument value.
*
* @param a a value.
* @return the positive square root of {@code a}.
*/
public static native double sqrt(double a);
/**
* Returns the cube root of a {@code double} value. For
* positive finite {@code x}, {@code cbrt(-x) ==
* -cbrt(x)}; that is, the cube root of a negative value is
* the negative of the cube root of that value''s magnitude.
* Special cases:
*
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is infinite, then the result is an infinity
* with the same sign as the argument.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param a a value.
* @return the cube root of {@code a}.
* @since 1.5
*/
public static native double cbrt(double a);
/**
* Computes the remainder operation on two arguments as prescribed
* by the IEEE 754 standard.
* The remainder value is mathematically equal to
* <code>f1 - f2</code> × <i>n</i>,
* where <i>n</i> is the mathematical integer closest to the exact
* mathematical value of the quotient {@code f1/f2}, and if two
* mathematical integers are equally close to {@code f1/f2},
* then <i>n</i> is the integer that is even. If the remainder is
* zero, its sign is the same as the sign of the first argument.
* Special cases:
* <ul><li>If either argument is NaN, or the first argument is infinite,
* or the second argument is positive zero or negative zero, then the
* result is NaN.
* <li>If the first argument is finite and the second argument is
* infinite, then the result is the same as the first argument.</ul>
*
* @param f1 the dividend.
* @param f2 the divisor.
* @return the remainder when {@code f1} is divided by
* {@code f2}.
*/
public static native double IEEEremainder(double f1, double f2);
/**
* Returns the smallest (closest to negative infinity)
* {@code double} value that is greater than or equal to the
* argument and is equal to a mathematical integer. Special cases:
* <ul><li>If the argument value is already equal to a
* mathematical integer, then the result is the same as the
* argument. <li>If the argument is NaN or an infinity or
* positive zero or negative zero, then the result is the same as
* the argument. <li>If the argument value is less than zero but
* greater than -1.0, then the result is negative zero.</ul> Note
* that the value of {@code StrictMath.ceil(x)} is exactly the
* value of {@code -StrictMath.floor(-x)}.
*
* @param a a value.
* @return the smallest (closest to negative infinity)
* floating-point value that is greater than or equal to
* the argument and is equal to a mathematical integer.
*/
public static native double ceil(double a);
/**
* Returns the largest (closest to positive infinity)
* {@code double} value that is less than or equal to the
* argument and is equal to a mathematical integer. Special cases:
* <ul><li>If the argument value is already equal to a
* mathematical integer, then the result is the same as the
* argument. <li>If the argument is NaN or an infinity or
* positive zero or negative zero, then the result is the same as
* the argument.</ul>
*
* @param a a value.
* @return the largest (closest to positive infinity)
* floating-point value that less than or equal to the argument
* and is equal to a mathematical integer.
*/
public static native double floor(double a);
/**
* Returns the {@code double} value that is closest in value
* to the argument and is equal to a mathematical integer. If two
* {@code double} values that are mathematical integers are
* equally close to the value of the argument, the result is the
* integer value that is even. Special cases:
* <ul><li>If the argument value is already equal to a mathematical
* integer, then the result is the same as the argument.
* <li>If the argument is NaN or an infinity or positive zero or negative
* zero, then the result is the same as the argument.</ul>
*
* @param a a value.
* @return the closest floating-point value to {@code a} that is
* equal to a mathematical integer.
* @author Joseph D. Darcy
*/
public static double rint(double a) {
/*
* If the absolute value of a is not less than 2^52, it
* is either a finite integer (the double format does not have
* enough significand bits for a number that large to have any
* fractional portion), an infinity, or a NaN. In any of
* these cases, rint of the argument is the argument.
*
* Otherwise, the sum (twoToThe52 + a ) will properly round
* away any fractional portion of a since ulp(twoToThe52) ==
* 1.0; subtracting out twoToThe52 from this sum will then be
* exact and leave the rounded integer portion of a.
*
* This method does *not* need to be declared strictfp to get
* fully reproducible results. Whether or not a method is
* declared strictfp can only make a difference in the
* returned result if some operation would overflow or
* underflow with strictfp semantics. The operation
* (twoToThe52 + a ) cannot overflow since large values of a
* are screened out; the add cannot underflow since twoToThe52
* is too large. The subtraction ((twoToThe52 + a ) -
* twoToThe52) will be exact as discussed above and thus
* cannot overflow or meaningfully underflow. Finally, the
* last multiply in the return statement is by plus or minus
* 1.0, which is exact too.
*/
double twoToThe52 = (double)(1L << 52); // 2^52
double sign = FpUtils.rawCopySign(1.0, a); // preserve sign info
a = Math.abs(a);
if (a < twoToThe52) { // E_min <= ilogb(a) <= 51
a = ((twoToThe52 + a ) - twoToThe52);
}
return sign * a; // restore original sign
}
/**
* Returns the angle <i>theta</i> from the conversion of rectangular
* coordinates ({@code x}, {@code y}) to polar
* coordinates (r, <i>theta</i>).
* This method computes the phase <i>theta</i> by computing an arc tangent
* of {@code y/x} in the range of -<i>pi</i> to <i>pi</i>. Special
* cases:
* <ul><li>If either argument is NaN, then the result is NaN.
* <li>If the first argument is positive zero and the second argument
* is positive, or the first argument is positive and finite and the
* second argument is positive infinity, then the result is positive
* zero.
* <li>If the first argument is negative zero and the second argument
* is positive, or the first argument is negative and finite and the
* second argument is positive infinity, then the result is negative zero.
* <li>If the first argument is positive zero and the second argument
* is negative, or the first argument is positive and finite and the
* second argument is negative infinity, then the result is the
* {@code double} value closest to <i>pi</i>.
* <li>If the first argument is negative zero and the second argument
* is negative, or the first argument is negative and finite and the
* second argument is negative infinity, then the result is the
* {@code double} value closest to -<i>pi</i>.
* <li>If the first argument is positive and the second argument is
* positive zero or negative zero, or the first argument is positive
* infinity and the second argument is finite, then the result is the
* {@code double} value closest to <i>pi</i>/2.
* <li>If the first argument is negative and the second argument is
* positive zero or negative zero, or the first argument is negative
* infinity and the second argument is finite, then the result is the
* {@code double} value closest to -<i>pi</i>/2.
* <li>If both arguments are positive infinity, then the result is the
* {@code double} value closest to <i>pi</i>/4.
* <li>If the first argument is positive infinity and the second argument
* is negative infinity, then the result is the {@code double}
* value closest to 3*<i>pi</i>/4.
* <li>If the first argument is negative infinity and the second argument
* is positive infinity, then the result is the {@code double} value
* closest to -<i>pi</i>/4.
* <li>If both arguments are negative infinity, then the result is the
* {@code double} value closest to -3*<i>pi</i>/4.</ul>
*
* @param y the ordinate coordinate
* @param x the abscissa coordinate
* @return the <i>theta</i> component of the point
* (<i>r</i>, <i>theta</i>)
* in polar coordinates that corresponds to the point
* (<i>x</i>, <i>y</i>) in Cartesian coordinates.
*/
public static native double atan2(double y, double x);
/**
* Returns the value of the first argument raised to the power of the
* second argument. Special cases:
*
* <ul><li>If the second argument is positive or negative zero, then the
* result is 1.0.
* <li>If the second argument is 1.0, then the result is the same as the
* first argument.
* <li>If the second argument is NaN, then the result is NaN.
* <li>If the first argument is NaN and the second argument is nonzero,
* then the result is NaN.
*
* <li>If
* <ul>
* <li>the absolute value of the first argument is greater than 1
* and the second argument is positive infinity, or
* <li>the absolute value of the first argument is less than 1 and
* the second argument is negative infinity,
* </ul>
* then the result is positive infinity.
*
* <li>If
* <ul>
* <li>the absolute value of the first argument is greater than 1 and
* the second argument is negative infinity, or
* <li>the absolute value of the
* first argument is less than 1 and the second argument is positive
* infinity,
* </ul>
* then the result is positive zero.
*
* <li>If the absolute value of the first argument equals 1 and the
* second argument is infinite, then the result is NaN.
*
* <li>If
* <ul>
* <li>the first argument is positive zero and the second argument
* is greater than zero, or
* <li>the first argument is positive infinity and the second
* argument is less than zero,
* </ul>
* then the result is positive zero.
*
* <li>If
* <ul>
* <li>the first argument is positive zero and the second argument
* is less than zero, or
* <li>the first argument is positive infinity and the second
* argument is greater than zero,
* </ul>
* then the result is positive infinity.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is greater than zero but not a finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is less than zero but not a finite odd integer,
* </ul>
* then the result is positive zero.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is a positive finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is a negative finite odd integer,
* </ul>
* then the result is negative zero.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is less than zero but not a finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is greater than zero but not a finite odd integer,
* </ul>
* then the result is positive infinity.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is a negative finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is a positive finite odd integer,
* </ul>
* then the result is negative infinity.
*
* <li>If the first argument is finite and less than zero
* <ul>
* <li> if the second argument is a finite even integer, the
* result is equal to the result of raising the absolute value of
* the first argument to the power of the second argument
*
* <li>if the second argument is a finite odd integer, the result
* is equal to the negative of the result of raising the absolute
* value of the first argument to the power of the second
* argument
*
* <li>if the second argument is finite and not an integer, then
* the result is NaN.
* </ul>
*
* <li>If both arguments are integers, then the result is exactly equal
* to the mathematical result of raising the first argument to the power
* of the second argument if that result can in fact be represented
* exactly as a {@code double} value.</ul>
*
* <p>(In the foregoing descriptions, a floating-point value is
* considered to be an integer if and only if it is finite and a
* fixed point of the method {@link #ceil ceil} or,
* equivalently, a fixed point of the method {@link #floor
* floor}. A value is a fixed point of a one-argument
* method if and only if the result of applying the method to the
* value is equal to the value.)
*
* @param a base.
* @param b the exponent.
* @return the value {@code a}<sup>{@code b}</sup>.
*/
public static native double pow(double a, double b);
/**
* Returns the closest {@code int} to the argument. The
* result is rounded to an integer by adding 1/2, taking the
* floor of the result, and casting the result to type {@code int}.
* In other words, the result is equal to the value of the expression:
* <p>{@code (int)Math.floor(a + 0.5f)}
*
* <p>Special cases:
* <ul><li>If the argument is NaN, the result is 0.
* <li>If the argument is negative infinity or any value less than or
* equal to the value of {@code Integer.MIN_VALUE}, the result is
* equal to the value of {@code Integer.MIN_VALUE}.
* <li>If the argument is positive infinity or any value greater than or
* equal to the value of {@code Integer.MAX_VALUE}, the result is
* equal to the value of {@code Integer.MAX_VALUE}.</ul>
*
* @param a a floating-point value to be rounded to an integer.
* @return the value of the argument rounded to the nearest
* {@code int} value.
* @see java.lang.Integer#MAX_VALUE
* @see java.lang.Integer#MIN_VALUE
*/
public static int round(float a) {
return (int)floor(a + 0.5f);
}
/**
* Returns the closest {@code long} to the argument. The result
* is rounded to an integer by adding 1/2, taking the floor of the
* result, and casting the result to type {@code long}. In other
* words, the result is equal to the value of the expression:
* <p>{@code (long)Math.floor(a + 0.5d)}
*
* <p>Special cases:
* <ul><li>If the argument is NaN, the result is 0.
* <li>If the argument is negative infinity or any value less than or
* equal to the value of {@code Long.MIN_VALUE}, the result is
* equal to the value of {@code Long.MIN_VALUE}.
* <li>If the argument is positive infinity or any value greater than or
* equal to the value of {@code Long.MAX_VALUE}, the result is
* equal to the value of {@code Long.MAX_VALUE}.</ul>
*
* @param a a floating-point value to be rounded to a
* {@code long}.
* @return the value of the argument rounded to the nearest
* {@code long} value.
* @see java.lang.Long#MAX_VALUE
* @see java.lang.Long#MIN_VALUE
*/
public static long round(double a) {
return (long)floor(a + 0.5d);
}
private static Random randomNumberGenerator;
private static synchronized void initRNG() {
if (randomNumberGenerator == null)
randomNumberGenerator = new Random();
}
/**
* Returns a {@code double} value with a positive sign, greater
* than or equal to {@code 0.0} and less than {@code 1.0}.
* Returned values are chosen pseudorandomly with (approximately)
* uniform distribution from that range.
*
* <p>When this method is first called, it creates a single new
* pseudorandom-number generator, exactly as if by the expression
* <blockquote>{@code new java.util.Random}</blockquote> This
* new pseudorandom-number generator is used thereafter for all
* calls to this method and is used nowhere else.
*
* <p>This method is properly synchronized to allow correct use by
* more than one thread. However, if many threads need to generate
* pseudorandom numbers at a great rate, it may reduce contention
* for each thread to have its own pseudorandom number generator.
*
* @return a pseudorandom {@code double} greater than or equal
* to {@code 0.0} and less than {@code 1.0}.
* @see java.util.Random#nextDouble()
*/
public static double random() {
if (randomNumberGenerator == null) initRNG();
return randomNumberGenerator.nextDouble();
}
/**
* Returns the absolute value of an {@code int} value..
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
*
* <p>Note that if the argument is equal to the value of
* {@link Integer#MIN_VALUE}, the most negative representable
* {@code int} value, the result is that same value, which is
* negative.
*
* @param a the argument whose absolute value is to be determined.
* @return the absolute value of the argument.
*/
public static int abs(int a) {
return (a < 0) ? -a : a;
}
/**
* Returns the absolute value of a {@code long} value.
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
*
* <p>Note that if the argument is equal to the value of
* {@link Long#MIN_VALUE}, the most negative representable
* {@code long} value, the result is that same value, which
* is negative.
*
* @param a the argument whose absolute value is to be determined.
* @return the absolute value of the argument.
*/
public static long abs(long a) {
return (a < 0) ? -a : a;
}
/**
* Returns the absolute value of a {@code float} value.
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
* Special cases:
* <ul><li>If the argument is positive zero or negative zero, the
* result is positive zero.
* <li>If the argument is infinite, the result is positive infinity.
* <li>If the argument is NaN, the result is NaN.</ul>
* In other words, the result is the same as the value of the expression:
* <p>{@code Float.intBitsToFloat(0x7fffffff & Float.floatToIntBits(a))}
*
* @param a the argument whose absolute value is to be determined
* @return the absolute value of the argument.
*/
public static float abs(float a) {
return (a <= 0.0F) ? 0.0F - a : a;
}
/**
* Returns the absolute value of a {@code double} value.
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
* Special cases:
* <ul><li>If the argument is positive zero or negative zero, the result
* is positive zero.
* <li>If the argument is infinite, the result is positive infinity.
* <li>If the argument is NaN, the result is NaN.</ul>
* In other words, the result is the same as the value of the expression:
* <p>{@code Double.longBitsToDouble((Double.doubleToLongBits(a)<<1)>>>1)}
*
* @param a the argument whose absolute value is to be determined
* @return the absolute value of the argument.
*/
public static double abs(double a) {
return (a <= 0.0D) ? 0.0D - a : a;
}
/**
* Returns the greater of two {@code int} values. That is, the
* result is the argument closer to the value of
* {@link Integer#MAX_VALUE}. If the arguments have the same value,
* the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static int max(int a, int b) {
return (a >= b) ? a : b;
}
/**
* Returns the greater of two {@code long} values. That is, the
* result is the argument closer to the value of
* {@link Long#MAX_VALUE}. If the arguments have the same value,
* the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static long max(long a, long b) {
return (a >= b) ? a : b;
}
private static long negativeZeroFloatBits = Float.floatToIntBits(-0.0f);
private static long negativeZeroDoubleBits = Double.doubleToLongBits(-0.0d);
/**
* Returns the greater of two {@code float} values. That is,
* the result is the argument closer to positive infinity. If the
* arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If one
* argument is positive zero and the other negative zero, the
* result is positive zero.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static float max(float a, float b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0f) && (b == 0.0f)
&& (Float.floatToIntBits(a) == negativeZeroFloatBits)) {
return b;
}
return (a >= b) ? a : b;
}
/**
* Returns the greater of two {@code double} values. That
* is, the result is the argument closer to positive infinity. If
* the arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If one
* argument is positive zero and the other negative zero, the
* result is positive zero.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static double max(double a, double b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0d) && (b == 0.0d)
&& (Double.doubleToLongBits(a) == negativeZeroDoubleBits)) {
return b;
}
return (a >= b) ? a : b;
}
/**
* Returns the smaller of two {@code int} values. That is,
* the result the argument closer to the value of
* {@link Integer#MIN_VALUE}. If the arguments have the same
* value, the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
public static int min(int a, int b) {
return (a <= b) ? a : b;
}
/**
* Returns the smaller of two {@code long} values. That is,
* the result is the argument closer to the value of
* {@link Long#MIN_VALUE}. If the arguments have the same
* value, the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
public static long min(long a, long b) {
return (a <= b) ? a : b;
}
/**
* Returns the smaller of two {@code float} values. That is,
* the result is the value closer to negative infinity. If the
* arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If
* one argument is positive zero and the other is negative zero,
* the result is negative zero.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b.}
*/
public static float min(float a, float b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0f) && (b == 0.0f)
&& (Float.floatToIntBits(b) == negativeZeroFloatBits)) {
return b;
}
return (a <= b) ? a : b;
}
/**
* Returns the smaller of two {@code double} values. That
* is, the result is the value closer to negative infinity. If the
* arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If one
* argument is positive zero and the other is negative zero, the
* result is negative zero.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
public static double min(double a, double b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0d) && (b == 0.0d)
&& (Double.doubleToLongBits(b) == negativeZeroDoubleBits)) {
return b;
}
return (a <= b) ? a : b;
}
/**
* Returns the size of an ulp of the argument. An ulp of a
* {@code double} value is the positive distance between this
* floating-point value and the {@code double} value next
* larger in magnitude. Note that for non-NaN <i>x</i>,
* <code>ulp(-<i>x</i>) == ulp(<i>x</i>)</code>.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive or negative infinity, then the
* result is positive infinity.
* <li> If the argument is positive or negative zero, then the result is
* {@code Double.MIN_VALUE}.
* <li> If the argument is ±{@code Double.MAX_VALUE}, then
* the result is equal to 2<sup>971</sup>.
* </ul>
*
* @param d the floating-point value whose ulp is to be returned
* @return the size of an ulp of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static double ulp(double d) {
return sun.misc.FpUtils.ulp(d);
}
/**
* Returns the size of an ulp of the argument. An ulp of a
* {@code float} value is the positive distance between this
* floating-point value and the {@code float} value next
* larger in magnitude. Note that for non-NaN <i>x</i>,
* <code>ulp(-<i>x</i>) == ulp(<i>x</i>)</code>.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive or negative infinity, then the
* result is positive infinity.
* <li> If the argument is positive or negative zero, then the result is
* {@code Float.MIN_VALUE}.
* <li> If the argument is ±{@code Float.MAX_VALUE}, then
* the result is equal to 2<sup>104</sup>.
* </ul>
*
* @param f the floating-point value whose ulp is to be returned
* @return the size of an ulp of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static float ulp(float f) {
return sun.misc.FpUtils.ulp(f);
}
/**
* Returns the signum function of the argument; zero if the argument
* is zero, 1.0 if the argument is greater than zero, -1.0 if the
* argument is less than zero.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive zero or negative zero, then the
* result is the same as the argument.
* </ul>
*
* @param d the floating-point value whose signum is to be returned
* @return the signum function of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static double signum(double d) {
return sun.misc.FpUtils.signum(d);
}
/**
* Returns the signum function of the argument; zero if the argument
* is zero, 1.0f if the argument is greater than zero, -1.0f if the
* argument is less than zero.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive zero or negative zero, then the
* result is the same as the argument.
* </ul>
*
* @param f the floating-point value whose signum is to be returned
* @return the signum function of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static float signum(float f) {
return sun.misc.FpUtils.signum(f);
}
/**
* Returns the hyperbolic sine of a {@code double} value.
* The hyperbolic sine of <i>x</i> is defined to be
* (<i>e<sup>x</sup> - e<sup>-x</sup></i>)/2
* where <i>e</i> is {@linkplain Math#E Euler''s number}.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is infinite, then the result is an infinity
* with the same sign as the argument.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param x The number whose hyperbolic sine is to be returned.
* @return The hyperbolic sine of {@code x}.
* @since 1.5
*/
public static native double sinh(double x);
/**
* Returns the hyperbolic cosine of a {@code double} value.
* The hyperbolic cosine of <i>x</i> is defined to be
* (<i>e<sup>x</sup> + e<sup>-x</sup></i>)/2
* where <i>e</i> is {@linkplain Math#E Euler''s number}.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is infinite, then the result is positive
* infinity.
*
* <li>If the argument is zero, then the result is {@code 1.0}.
*
* </ul>
*
* @param x The number whose hyperbolic cosine is to be returned.
* @return The hyperbolic cosine of {@code x}.
* @since 1.5
*/
public static native double cosh(double x);
/**
* Returns the hyperbolic tangent of a {@code double} value.
* The hyperbolic tangent of <i>x</i> is defined to be
* (<i>e<sup>x</sup> - e<sup>-x</sup></i>)/(<i>e<sup>x</sup> + e<sup>-x</sup></i>),
* in other words, {@linkplain Math#sinh
* sinh(<i>x</i>)}/{@linkplain Math#cosh cosh(<i>x</i>)}. Note
* that the absolute value of the exact tanh is always less than
* 1.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* <li>If the argument is positive infinity, then the result is
* {@code +1.0}.
*
* <li>If the argument is negative infinity, then the result is
* {@code -1.0}.
*
* </ul>
*
* @param x The number whose hyperbolic tangent is to be returned.
* @return The hyperbolic tangent of {@code x}.
* @since 1.5
*/
public static native double tanh(double x);
/**
* Returns sqrt(<i>x</i><sup>2</sup> +<i>y</i><sup>2</sup>)
* without intermediate overflow or underflow.
*
* <p>Special cases:
* <ul>
*
* <li> If either argument is infinite, then the result
* is positive infinity.
*
* <li> If either argument is NaN and neither argument is infinite,
* then the result is NaN.
*
* </ul>
*
* @param x a value
* @param y a value
* @return sqrt(<i>x</i><sup>2</sup> +<i>y</i><sup>2</sup>)
* without intermediate overflow or underflow
* @since 1.5
*/
public static native double hypot(double x, double y);
/**
* Returns <i>e</i><sup>x</sup> -1. Note that for values of
* <i>x</i> near 0, the exact sum of
* {@code expm1(x)} + 1 is much closer to the true
* result of <i>e</i><sup>x</sup> than {@code exp(x)}.
*
* <p>Special cases:
* <ul>
* <li>If the argument is NaN, the result is NaN.
*
* <li>If the argument is positive infinity, then the result is
* positive infinity.
*
* <li>If the argument is negative infinity, then the result is
* -1.0.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param x the exponent to raise <i>e</i> to in the computation of
* <i>e</i><sup>{@code x}</sup> -1.
* @return the value <i>e</i><sup>{@code x}</sup> - 1.
* @since 1.5
*/
public static native double expm1(double x);
/**
* Returns the natural logarithm of the sum of the argument and 1.
* Note that for small values {@code x}, the result of
* {@code log1p(x)} is much closer to the true result of ln(1
* + {@code x}) than the floating-point evaluation of
* {@code log(1.0+x)}.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN or less than -1, then the result is
* NaN.
*
* <li>If the argument is positive infinity, then the result is
* positive infinity.
*
* <li>If the argument is negative one, then the result is
* negative infinity.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param x a value
* @return the value ln({@code x} + 1), the natural
* log of {@code x} + 1
* @since 1.5
*/
public static native double log1p(double x);
/**
* Returns the first floating-point argument with the sign of the
* second floating-point argument. For this method, a NaN
* {@code sign} argument is always treated as if it were
* positive.
*
* @param magnitude the parameter providing the magnitude of the result
* @param sign the parameter providing the sign of the result
* @return a value with the magnitude of {@code magnitude}
* and the sign of {@code sign}.
* @since 1.6
*/
public static double copySign(double magnitude, double sign) {
return sun.misc.FpUtils.copySign(magnitude, sign);
}
/**
* Returns the first floating-point argument with the sign of the
* second floating-point argument. For this method, a NaN
* {@code sign} argument is always treated as if it were
* positive.
*
* @param magnitude the parameter providing the magnitude of the result
* @param sign the parameter providing the sign of the result
* @return a value with the magnitude of {@code magnitude}
* and the sign of {@code sign}.
* @since 1.6
*/
public static float copySign(float magnitude, float sign) {
return sun.misc.FpUtils.copySign(magnitude, sign);
}
/**
* Returns the unbiased exponent used in the representation of a
* {@code float}. Special cases:
*
* <ul>
* <li>If the argument is NaN or infinite, then the result is
* {@link Float#MAX_EXPONENT} + 1.
* <li>If the argument is zero or subnormal, then the result is
* {@link Float#MIN_EXPONENT} -1.
* </ul>
* @param f a {@code float} value
* @since 1.6
*/
public static int getExponent(float f) {
return sun.misc.FpUtils.getExponent(f);
}
/**
* Returns the unbiased exponent used in the representation of a
* {@code double}. Special cases:
*
* <ul>
* <li>If the argument is NaN or infinite, then the result is
* {@link Double#MAX_EXPONENT} + 1.
* <li>If the argument is zero or subnormal, then the result is
* {@link Double#MIN_EXPONENT} -1.
* </ul>
* @param d a {@code double} value
* @since 1.6
*/
public static int getExponent(double d) {
return sun.misc.FpUtils.getExponent(d);
}
/**
* Returns the floating-point number adjacent to the first
* argument in the direction of the second argument. If both
* arguments compare as equal the second argument is returned.
*
* <p>Special cases:
* <ul>
* <li> If either argument is a NaN, then NaN is returned.
*
* <li> If both arguments are signed zeros, {@code direction}
* is returned unchanged (as implied by the requirement of
* returning the second argument if the arguments compare as
* equal).
*
* <li> If {@code start} is
* ±{@link Double#MIN_VALUE} and {@code direction}
* has a value such that the result should have a smaller
* magnitude, then a zero with the same sign as {@code start}
* is returned.
*
* <li> If {@code start} is infinite and
* {@code direction} has a value such that the result should
* have a smaller magnitude, {@link Double#MAX_VALUE} with the
* same sign as {@code start} is returned.
*
* <li> If {@code start} is equal to ±
* {@link Double#MAX_VALUE} and {@code direction} has a
* value such that the result should have a larger magnitude, an
* infinity with same sign as {@code start} is returned.
* </ul>
*
* @param start starting floating-point value
* @param direction value indicating which of
* {@code start}''s neighbors or {@code start} should
* be returned
* @return The floating-point number adjacent to {@code start} in the
* direction of {@code direction}.
* @since 1.6
*/
public static double nextAfter(double start, double direction) {
return sun.misc.FpUtils.nextAfter(start, direction);
}
/**
* Returns the floating-point number adjacent to the first
* argument in the direction of the second argument. If both
* arguments compare as equal a value equivalent to the second argument
* is returned.
*
* <p>Special cases:
* <ul>
* <li> If either argument is a NaN, then NaN is returned.
*
* <li> If both arguments are signed zeros, a value equivalent
* to {@code direction} is returned.
*
* <li> If {@code start} is
* ±{@link Float#MIN_VALUE} and {@code direction}
* has a value such that the result should have a smaller
* magnitude, then a zero with the same sign as {@code start}
* is returned.
*
* <li> If {@code start} is infinite and
* {@code direction} has a value such that the result should
* have a smaller magnitude, {@link Float#MAX_VALUE} with the
* same sign as {@code start} is returned.
*
* <li> If {@code start} is equal to ±
* {@link Float#MAX_VALUE} and {@code direction} has a
* value such that the result should have a larger magnitude, an
* infinity with same sign as {@code start} is returned.
* </ul>
*
* @param start starting floating-point value
* @param direction value indicating which of
* {@code start}''s neighbors or {@code start} should
* be returned
* @return The floating-point number adjacent to {@code start} in the
* direction of {@code direction}.
* @since 1.6
*/
public static float nextAfter(float start, double direction) {
return sun.misc.FpUtils.nextAfter(start, direction);
}
/**
* Returns the floating-point value adjacent to {@code d} in
* the direction of positive infinity. This method is
* semantically equivalent to {@code nextAfter(d,
* Double.POSITIVE_INFINITY)}; however, a {@code nextUp}
* implementation may run faster than its equivalent
* {@code nextAfter} call.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, the result is NaN.
*
* <li> If the argument is positive infinity, the result is
* positive infinity.
*
* <li> If the argument is zero, the result is
* {@link Double#MIN_VALUE}
*
* </ul>
*
* @param d starting floating-point value
* @return The adjacent floating-point value closer to positive
* infinity.
* @since 1.6
*/
public static double nextUp(double d) {
return sun.misc.FpUtils.nextUp(d);
}
/**
* Returns the floating-point value adjacent to {@code f} in
* the direction of positive infinity. This method is
* semantically equivalent to {@code nextAfter(f,
* Float.POSITIVE_INFINITY)}; however, a {@code nextUp}
* implementation may run faster than its equivalent
* {@code nextAfter} call.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, the result is NaN.
*
* <li> If the argument is positive infinity, the result is
* positive infinity.
*
* <li> If the argument is zero, the result is
* {@link Float#MIN_VALUE}
*
* </ul>
*
* @param f starting floating-point value
* @return The adjacent floating-point value closer to positive
* infinity.
* @since 1.6
*/
public static float nextUp(float f) {
return sun.misc.FpUtils.nextUp(f);
}
/**
* Return {@code d} ×
* 2<sup>{@code scaleFactor}</sup> rounded as if performed
* by a single correctly rounded floating-point multiply to a
* member of the double value set. See the Java
* Language Specification for a discussion of floating-point
* value sets. If the exponent of the result is between {@link
* Double#MIN_EXPONENT} and {@link Double#MAX_EXPONENT}, the
* answer is calculated exactly. If the exponent of the result
* would be larger than {@code Double.MAX_EXPONENT}, an
* infinity is returned. Note that if the result is subnormal,
* precision may be lost; that is, when {@code scalb(x, n)}
* is subnormal, {@code scalb(scalb(x, n), -n)} may not equal
* <i>x</i>. When the result is non-NaN, the result has the same
* sign as {@code d}.
*
* <p>Special cases:
* <ul>
* <li> If the first argument is NaN, NaN is returned.
* <li> If the first argument is infinite, then an infinity of the
* same sign is returned.
* <li> If the first argument is zero, then a zero of the same
* sign is returned.
* </ul>
*
* @param d number to be scaled by a power of two.
* @param scaleFactor power of 2 used to scale {@code d}
* @return {@code d} × 2<sup>{@code scaleFactor}</sup>
* @since 1.6
*/
public static double scalb(double d, int scaleFactor) {
return sun.misc.FpUtils.scalb(d, scaleFactor);
}
/**
* Return {@code f} ×
* 2<sup>{@code scaleFactor}</sup> rounded as if performed
* by a single correctly rounded floating-point multiply to a
* member of the float value set. See the Java
* Language Specification for a discussion of floating-point
* value sets. If the exponent of the result is between {@link
* Float#MIN_EXPONENT} and {@link Float#MAX_EXPONENT}, the
* answer is calculated exactly. If the exponent of the result
* would be larger than {@code Float.MAX_EXPONENT}, an
* infinity is returned. Note that if the result is subnormal,
* precision may be lost; that is, when {@code scalb(x, n)}
* is subnormal, {@code scalb(scalb(x, n), -n)} may not equal
* <i>x</i>. When the result is non-NaN, the result has the same
* sign as {@code f}.
*
* <p>Special cases:
* <ul>
* <li> If the first argument is NaN, NaN is returned.
* <li> If the first argument is infinite, then an infinity of the
* same sign is returned.
* <li> If the first argument is zero, then a zero of the same
* sign is returned.
* </ul>
*
* @param f number to be scaled by a power of two.
* @param scaleFactor power of 2 used to scale {@code f}
* @return {@code f} × 2<sup>{@code scaleFactor}</sup>
* @since 1.6
*/
public static float scalb(float f, int scaleFactor) {
return sun.misc.FpUtils.scalb(f, scaleFactor);
}
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 22:06:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_04b
result := JavaParserII parse:'
/**
*/
package java.lang;
import java.util.Random;
import sun.misc.FpUtils;
/**
* The class {@code StrictMath} contains methods for performing basic
* ...
*/
public final class StrictMath {
/**
* Don''t let anyone instantiate this class.
*/
private StrictMath() {}
/**
* The {@code double} value that is closer than any other to
* <i>e</i>, the base of the natural logarithms.
*/
public static final double E = 2.7182818284590452354;
/**
* The {@code double} value that is closer than any other to
* <i>pi</i>, the ratio of the circumference of a circle to its
* diameter.
*/
public static final double PI = 3.14159265358979323846;
/**
* Returns the trigonometric sine of an angle. Special cases:
* <ul><li>If the argument is NaN or an infinity, then the
* result is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a an angle, in radians.
* @return the sine of the argument.
*/
public static native double sin(double a);
/**
* Returns the trigonometric cosine of an angle. Special cases:
* <ul><li>If the argument is NaN or an infinity, then the
* result is NaN.</ul>
*
* @param a an angle, in radians.
* @return the cosine of the argument.
*/
public static native double cos(double a);
/**
* Returns the trigonometric tangent of an angle. Special cases:
* <ul><li>If the argument is NaN or an infinity, then the result
* is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a an angle, in radians.
* @return the tangent of the argument.
*/
public static native double tan(double a);
/**
* Returns the arc sine of a value; the returned angle is in the
* range -<i>pi</i>/2 through <i>pi</i>/2. Special cases:
* <ul><li>If the argument is NaN or its absolute value is greater
* than 1, then the result is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a the value whose arc sine is to be returned.
* @return the arc sine of the argument.
*/
public static native double asin(double a);
/**
* Returns the arc cosine of a value; the returned angle is in the
* range 0.0 through <i>pi</i>. Special case:
* <ul><li>If the argument is NaN or its absolute value is greater
* than 1, then the result is NaN.</ul>
*
* @param a the value whose arc cosine is to be returned.
* @return the arc cosine of the argument.
*/
public static native double acos(double a);
/**
* Returns the arc tangent of a value; the returned angle is in the
* range -<i>pi</i>/2 through <i>pi</i>/2. Special cases:
* <ul><li>If the argument is NaN, then the result is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a the value whose arc tangent is to be returned.
* @return the arc tangent of the argument.
*/
public static native double atan(double a);
/**
* Converts an angle measured in degrees to an approximately
* equivalent angle measured in radians. The conversion from
* degrees to radians is generally inexact.
*
* @param angdeg an angle, in degrees
* @return the measurement of the angle {@code angdeg}
* in radians.
*/
public static strictfp double toRadians(double angdeg) {
return angdeg / 180.0 * PI;
}
/**
* Converts an angle measured in radians to an approximately
* equivalent angle measured in degrees. The conversion from
* radians to degrees is generally inexact; users should
* <i>not</i> expect {@code cos(toRadians(90.0))} to exactly
* equal {@code 0.0}.
*
* @param angrad an angle, in radians
* @return the measurement of the angle {@code angrad}
* in degrees.
*/
public static strictfp double toDegrees(double angrad) {
return angrad * 180.0 / PI;
}
/**
* Returns Euler''s number <i>e</i> raised to the power of a
* {@code double} value. Special cases:
* <ul><li>If the argument is NaN, the result is NaN.
* <li>If the argument is positive infinity, then the result is
* positive infinity.
* <li>If the argument is negative infinity, then the result is
* positive zero.</ul>
*
* @param a the exponent to raise <i>e</i> to.
* @return the value <i>e</i><sup>{@code a}</sup>,
* where <i>e</i> is the base of the natural logarithms.
*/
public static native double exp(double a);
/**
* Returns the natural logarithm (base <i>e</i>) of a {@code double}
* value. Special cases:
* <ul><li>If the argument is NaN or less than zero, then the result
* is NaN.
* <li>If the argument is positive infinity, then the result is
* positive infinity.
* <li>If the argument is positive zero or negative zero, then the
* result is negative infinity.</ul>
*
* @param a a value
* @return the value ln {@code a}, the natural logarithm of
* {@code a}.
*/
public static native double log(double a);
/**
* Returns the base 10 logarithm of a {@code double} value.
* Special cases:
*
* <ul><li>If the argument is NaN or less than zero, then the result
* is NaN.
* <li>If the argument is positive infinity, then the result is
* positive infinity.
* <li>If the argument is positive zero or negative zero, then the
* result is negative infinity.
* <li> If the argument is equal to 10<sup><i>n</i></sup> for
* integer <i>n</i>, then the result is <i>n</i>.
* </ul>
*
* @param a a value
* @return the base 10 logarithm of {@code a}.
* @since 1.5
*/
public static native double log10(double a);
/**
* Returns the correctly rounded positive square root of a
* {@code double} value.
* Special cases:
* <ul><li>If the argument is NaN or less than zero, then the result
* is NaN.
* <li>If the argument is positive infinity, then the result is positive
* infinity.
* <li>If the argument is positive zero or negative zero, then the
* result is the same as the argument.</ul>
* Otherwise, the result is the {@code double} value closest to
* the true mathematical square root of the argument value.
*
* @param a a value.
* @return the positive square root of {@code a}.
*/
public static native double sqrt(double a);
/**
* Returns the cube root of a {@code double} value. For
* positive finite {@code x}, {@code cbrt(-x) ==
* -cbrt(x)}; that is, the cube root of a negative value is
* the negative of the cube root of that value''s magnitude.
* Special cases:
*
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is infinite, then the result is an infinity
* with the same sign as the argument.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param a a value.
* @return the cube root of {@code a}.
* @since 1.5
*/
public static native double cbrt(double a);
/**
* Computes the remainder operation on two arguments as prescribed
* by the IEEE 754 standard.
* The remainder value is mathematically equal to
* <code>f1 - f2</code> × <i>n</i>,
* where <i>n</i> is the mathematical integer closest to the exact
* mathematical value of the quotient {@code f1/f2}, and if two
* mathematical integers are equally close to {@code f1/f2},
* then <i>n</i> is the integer that is even. If the remainder is
* zero, its sign is the same as the sign of the first argument.
* Special cases:
* <ul><li>If either argument is NaN, or the first argument is infinite,
* or the second argument is positive zero or negative zero, then the
* result is NaN.
* <li>If the first argument is finite and the second argument is
* infinite, then the result is the same as the first argument.</ul>
*
* @param f1 the dividend.
* @param f2 the divisor.
* @return the remainder when {@code f1} is divided by
* {@code f2}.
*/
public static native double IEEEremainder(double f1, double f2);
/**
* Returns the smallest (closest to negative infinity)
* {@code double} value that is greater than or equal to the
* argument and is equal to a mathematical integer. Special cases:
* <ul><li>If the argument value is already equal to a
* mathematical integer, then the result is the same as the
* argument. <li>If the argument is NaN or an infinity or
* positive zero or negative zero, then the result is the same as
* the argument. <li>If the argument value is less than zero but
* greater than -1.0, then the result is negative zero.</ul> Note
* that the value of {@code StrictMath.ceil(x)} is exactly the
* value of {@code -StrictMath.floor(-x)}.
*
* @param a a value.
* @return the smallest (closest to negative infinity)
* floating-point value that is greater than or equal to
* the argument and is equal to a mathematical integer.
*/
public static native double ceil(double a);
/**
* Returns the largest (closest to positive infinity)
* {@code double} value that is less than or equal to the
* argument and is equal to a mathematical integer. Special cases:
* <ul><li>If the argument value is already equal to a
* mathematical integer, then the result is the same as the
* argument. <li>If the argument is NaN or an infinity or
* positive zero or negative zero, then the result is the same as
* the argument.</ul>
*
* @param a a value.
* @return the largest (closest to positive infinity)
* floating-point value that less than or equal to the argument
* and is equal to a mathematical integer.
*/
public static native double floor(double a);
/**
* Returns the {@code double} value that is closest in value
* to the argument and is equal to a mathematical integer. If two
* {@code double} values that are mathematical integers are
* equally close to the value of the argument, the result is the
* integer value that is even. Special cases:
* <ul><li>If the argument value is already equal to a mathematical
* integer, then the result is the same as the argument.
* <li>If the argument is NaN or an infinity or positive zero or negative
* zero, then the result is the same as the argument.</ul>
*
* @param a a value.
* @return the closest floating-point value to {@code a} that is
* equal to a mathematical integer.
* @author Joseph D. Darcy
*/
public static double rint(double a) {
/*
* If the absolute value of a is not less than 2^52, it
* is either a finite integer (the double format does not have
* enough significand bits for a number that large to have any
* fractional portion), an infinity, or a NaN. In any of
* these cases, rint of the argument is the argument.
*
* Otherwise, the sum (twoToThe52 + a ) will properly round
* away any fractional portion of a since ulp(twoToThe52) ==
* 1.0; subtracting out twoToThe52 from this sum will then be
* exact and leave the rounded integer portion of a.
*
* This method does *not* need to be declared strictfp to get
* fully reproducible results. Whether or not a method is
* declared strictfp can only make a difference in the
* returned result if some operation would overflow or
* underflow with strictfp semantics. The operation
* (twoToThe52 + a ) cannot overflow since large values of a
* are screened out; the add cannot underflow since twoToThe52
* is too large. The subtraction ((twoToThe52 + a ) -
* twoToThe52) will be exact as discussed above and thus
* cannot overflow or meaningfully underflow. Finally, the
* last multiply in the return statement is by plus or minus
* 1.0, which is exact too.
*/
double twoToThe52 = (double)(1L << 52); // 2^52
double sign = FpUtils.rawCopySign(1.0, a); // preserve sign info
a = Math.abs(a);
if (a < twoToThe52) { // E_min <= ilogb(a) <= 51
a = ((twoToThe52 + a ) - twoToThe52);
}
return sign * a; // restore original sign
}
/**
* Returns the angle <i>theta</i> from the conversion of rectangular
* coordinates ({@code x}, {@code y}) to polar
* coordinates (r, <i>theta</i>).
* This method computes the phase <i>theta</i> by computing an arc tangent
* of {@code y/x} in the range of -<i>pi</i> to <i>pi</i>. Special
* cases:
* <ul><li>If either argument is NaN, then the result is NaN.
* <li>If the first argument is positive zero and the second argument
* is positive, or the first argument is positive and finite and the
* second argument is positive infinity, then the result is positive
* zero.
* <li>If the first argument is negative zero and the second argument
* is positive, or the first argument is negative and finite and the
* second argument is positive infinity, then the result is negative zero.
* <li>If the first argument is positive zero and the second argument
* is negative, or the first argument is positive and finite and the
* second argument is negative infinity, then the result is the
* {@code double} value closest to <i>pi</i>.
* <li>If the first argument is negative zero and the second argument
* is negative, or the first argument is negative and finite and the
* second argument is negative infinity, then the result is the
* {@code double} value closest to -<i>pi</i>.
* <li>If the first argument is positive and the second argument is
* positive zero or negative zero, or the first argument is positive
* infinity and the second argument is finite, then the result is the
* {@code double} value closest to <i>pi</i>/2.
* <li>If the first argument is negative and the second argument is
* positive zero or negative zero, or the first argument is negative
* infinity and the second argument is finite, then the result is the
* {@code double} value closest to -<i>pi</i>/2.
* <li>If both arguments are positive infinity, then the result is the
* {@code double} value closest to <i>pi</i>/4.
* <li>If the first argument is positive infinity and the second argument
* is negative infinity, then the result is the {@code double}
* value closest to 3*<i>pi</i>/4.
* <li>If the first argument is negative infinity and the second argument
* is positive infinity, then the result is the {@code double} value
* closest to -<i>pi</i>/4.
* <li>If both arguments are negative infinity, then the result is the
* {@code double} value closest to -3*<i>pi</i>/4.</ul>
*
* @param y the ordinate coordinate
* @param x the abscissa coordinate
* @return the <i>theta</i> component of the point
* (<i>r</i>, <i>theta</i>)
* in polar coordinates that corresponds to the point
* (<i>x</i>, <i>y</i>) in Cartesian coordinates.
*/
public static native double atan2(double y, double x);
/**
* Returns the value of the first argument raised to the power of the
* second argument. Special cases:
*
* <ul><li>If the second argument is positive or negative zero, then the
* result is 1.0.
* <li>If the second argument is 1.0, then the result is the same as the
* first argument.
* <li>If the second argument is NaN, then the result is NaN.
* <li>If the first argument is NaN and the second argument is nonzero,
* then the result is NaN.
*
* <li>If
* <ul>
* <li>the absolute value of the first argument is greater than 1
* and the second argument is positive infinity, or
* <li>the absolute value of the first argument is less than 1 and
* the second argument is negative infinity,
* </ul>
* then the result is positive infinity.
*
* <li>If
* <ul>
* <li>the absolute value of the first argument is greater than 1 and
* the second argument is negative infinity, or
* <li>the absolute value of the
* first argument is less than 1 and the second argument is positive
* infinity,
* </ul>
* then the result is positive zero.
*
* <li>If the absolute value of the first argument equals 1 and the
* second argument is infinite, then the result is NaN.
*
* <li>If
* <ul>
* <li>the first argument is positive zero and the second argument
* is greater than zero, or
* <li>the first argument is positive infinity and the second
* argument is less than zero,
* </ul>
* then the result is positive zero.
*
* <li>If
* <ul>
* <li>the first argument is positive zero and the second argument
* is less than zero, or
* <li>the first argument is positive infinity and the second
* argument is greater than zero,
* </ul>
* then the result is positive infinity.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is greater than zero but not a finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is less than zero but not a finite odd integer,
* </ul>
* then the result is positive zero.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is a positive finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is a negative finite odd integer,
* </ul>
* then the result is negative zero.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is less than zero but not a finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is greater than zero but not a finite odd integer,
* </ul>
* then the result is positive infinity.
*
* <li>If
* <ul>
* <li>the first argument is negative zero and the second argument
* is a negative finite odd integer, or
* <li>the first argument is negative infinity and the second
* argument is a positive finite odd integer,
* </ul>
* then the result is negative infinity.
*
* <li>If the first argument is finite and less than zero
* <ul>
* <li> if the second argument is a finite even integer, the
* result is equal to the result of raising the absolute value of
* the first argument to the power of the second argument
*
* <li>if the second argument is a finite odd integer, the result
* is equal to the negative of the result of raising the absolute
* value of the first argument to the power of the second
* argument
*
* <li>if the second argument is finite and not an integer, then
* the result is NaN.
* </ul>
*
* <li>If both arguments are integers, then the result is exactly equal
* to the mathematical result of raising the first argument to the power
* of the second argument if that result can in fact be represented
* exactly as a {@code double} value.</ul>
*
* <p>(In the foregoing descriptions, a floating-point value is
* considered to be an integer if and only if it is finite and a
* fixed point of the method {@link #ceil ceil} or,
* equivalently, a fixed point of the method {@link #floor
* floor}. A value is a fixed point of a one-argument
* method if and only if the result of applying the method to the
* value is equal to the value.)
*
* @param a base.
* @param b the exponent.
* @return the value {@code a}<sup>{@code b}</sup>.
*/
public static native double pow(double a, double b);
/**
* Returns the closest {@code int} to the argument. The
* result is rounded to an integer by adding 1/2, taking the
* floor of the result, and casting the result to type {@code int}.
* In other words, the result is equal to the value of the expression:
* <p>{@code (int)Math.floor(a + 0.5f)}
*
* <p>Special cases:
* <ul><li>If the argument is NaN, the result is 0.
* <li>If the argument is negative infinity or any value less than or
* equal to the value of {@code Integer.MIN_VALUE}, the result is
* equal to the value of {@code Integer.MIN_VALUE}.
* <li>If the argument is positive infinity or any value greater than or
* equal to the value of {@code Integer.MAX_VALUE}, the result is
* equal to the value of {@code Integer.MAX_VALUE}.</ul>
*
* @param a a floating-point value to be rounded to an integer.
* @return the value of the argument rounded to the nearest
* {@code int} value.
* @see java.lang.Integer#MAX_VALUE
* @see java.lang.Integer#MIN_VALUE
*/
public static int round(float a) {
return (int)floor(a + 0.5f);
}
/**
* Returns the closest {@code long} to the argument. The result
* is rounded to an integer by adding 1/2, taking the floor of the
* result, and casting the result to type {@code long}. In other
* words, the result is equal to the value of the expression:
* <p>{@code (long)Math.floor(a + 0.5d)}
*
* <p>Special cases:
* <ul><li>If the argument is NaN, the result is 0.
* <li>If the argument is negative infinity or any value less than or
* equal to the value of {@code Long.MIN_VALUE}, the result is
* equal to the value of {@code Long.MIN_VALUE}.
* <li>If the argument is positive infinity or any value greater than or
* equal to the value of {@code Long.MAX_VALUE}, the result is
* equal to the value of {@code Long.MAX_VALUE}.</ul>
*
* @param a a floating-point value to be rounded to a
* {@code long}.
* @return the value of the argument rounded to the nearest
* {@code long} value.
* @see java.lang.Long#MAX_VALUE
* @see java.lang.Long#MIN_VALUE
*/
public static long round(double a) {
return (long)floor(a + 0.5d);
}
private static Random randomNumberGenerator;
private static synchronized void initRNG() {
if (randomNumberGenerator == null)
randomNumberGenerator = new Random();
}
/**
* Returns a {@code double} value with a positive sign, greater
* than or equal to {@code 0.0} and less than {@code 1.0}.
* Returned values are chosen pseudorandomly with (approximately)
* uniform distribution from that range.
*
* <p>When this method is first called, it creates a single new
* pseudorandom-number generator, exactly as if by the expression
* <blockquote>{@code new java.util.Random}</blockquote> This
* new pseudorandom-number generator is used thereafter for all
* calls to this method and is used nowhere else.
*
* <p>This method is properly synchronized to allow correct use by
* more than one thread. However, if many threads need to generate
* pseudorandom numbers at a great rate, it may reduce contention
* for each thread to have its own pseudorandom number generator.
*
* @return a pseudorandom {@code double} greater than or equal
* to {@code 0.0} and less than {@code 1.0}.
* @see java.util.Random#nextDouble()
*/
public static double random() {
if (randomNumberGenerator == null) initRNG();
return randomNumberGenerator.nextDouble();
}
/**
* Returns the absolute value of an {@code int} value..
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
*
* <p>Note that if the argument is equal to the value of
* {@link Integer#MIN_VALUE}, the most negative representable
* {@code int} value, the result is that same value, which is
* negative.
*
* @param a the argument whose absolute value is to be determined.
* @return the absolute value of the argument.
*/
public static int abs(int a) {
return (a < 0) ? -a : a;
}
/**
* Returns the absolute value of a {@code long} value.
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
*
* <p>Note that if the argument is equal to the value of
* {@link Long#MIN_VALUE}, the most negative representable
* {@code long} value, the result is that same value, which
* is negative.
*
* @param a the argument whose absolute value is to be determined.
* @return the absolute value of the argument.
*/
public static long abs(long a) {
return (a < 0) ? -a : a;
}
/**
* Returns the absolute value of a {@code float} value.
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
* Special cases:
* <ul><li>If the argument is positive zero or negative zero, the
* result is positive zero.
* <li>If the argument is infinite, the result is positive infinity.
* <li>If the argument is NaN, the result is NaN.</ul>
* In other words, the result is the same as the value of the expression:
* <p>{@code Float.intBitsToFloat(0x7fffffff & Float.floatToIntBits(a))}
*
* @param a the argument whose absolute value is to be determined
* @return the absolute value of the argument.
*/
public static float abs(float a) {
return (a <= 0.0F) ? 0.0F - a : a;
}
/**
* Returns the absolute value of a {@code double} value.
* If the argument is not negative, the argument is returned.
* If the argument is negative, the negation of the argument is returned.
* Special cases:
* <ul><li>If the argument is positive zero or negative zero, the result
* is positive zero.
* <li>If the argument is infinite, the result is positive infinity.
* <li>If the argument is NaN, the result is NaN.</ul>
* In other words, the result is the same as the value of the expression:
* <p>{@code Double.longBitsToDouble((Double.doubleToLongBits(a)<<1)>>>1)}
*
* @param a the argument whose absolute value is to be determined
* @return the absolute value of the argument.
*/
public static double abs(double a) {
return (a <= 0.0D) ? 0.0D - a : a;
}
/**
* Returns the greater of two {@code int} values. That is, the
* result is the argument closer to the value of
* {@link Integer#MAX_VALUE}. If the arguments have the same value,
* the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static int max(int a, int b) {
return (a >= b) ? a : b;
}
/**
* Returns the greater of two {@code long} values. That is, the
* result is the argument closer to the value of
* {@link Long#MAX_VALUE}. If the arguments have the same value,
* the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static long max(long a, long b) {
return (a >= b) ? a : b;
}
private static long negativeZeroFloatBits = Float.floatToIntBits(-0.0f);
private static long negativeZeroDoubleBits = Double.doubleToLongBits(-0.0d);
/**
* Returns the greater of two {@code float} values. That is,
* the result is the argument closer to positive infinity. If the
* arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If one
* argument is positive zero and the other negative zero, the
* result is positive zero.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static float max(float a, float b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0f) && (b == 0.0f)
&& (Float.floatToIntBits(a) == negativeZeroFloatBits)) {
return b;
}
return (a >= b) ? a : b;
}
/**
* Returns the greater of two {@code double} values. That
* is, the result is the argument closer to positive infinity. If
* the arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If one
* argument is positive zero and the other negative zero, the
* result is positive zero.
*
* @param a an argument.
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
public static double max(double a, double b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0d) && (b == 0.0d)
&& (Double.doubleToLongBits(a) == negativeZeroDoubleBits)) {
return b;
}
return (a >= b) ? a : b;
}
/**
* Returns the smaller of two {@code int} values. That is,
* the result the argument closer to the value of
* {@link Integer#MIN_VALUE}. If the arguments have the same
* value, the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
public static int min(int a, int b) {
return (a <= b) ? a : b;
}
/**
* Returns the smaller of two {@code long} values. That is,
* the result is the argument closer to the value of
* {@link Long#MIN_VALUE}. If the arguments have the same
* value, the result is that same value.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
public static long min(long a, long b) {
return (a <= b) ? a : b;
}
/**
* Returns the smaller of two {@code float} values. That is,
* the result is the value closer to negative infinity. If the
* arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If
* one argument is positive zero and the other is negative zero,
* the result is negative zero.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b.}
*/
public static float min(float a, float b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0f) && (b == 0.0f)
&& (Float.floatToIntBits(b) == negativeZeroFloatBits)) {
return b;
}
return (a <= b) ? a : b;
}
/**
* Returns the smaller of two {@code double} values. That
* is, the result is the value closer to negative infinity. If the
* arguments have the same value, the result is that same
* value. If either value is NaN, then the result is NaN. Unlike
* the numerical comparison operators, this method considers
* negative zero to be strictly smaller than positive zero. If one
* argument is positive zero and the other is negative zero, the
* result is negative zero.
*
* @param a an argument.
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
public static double min(double a, double b) {
if (a !!= a) return a; // a is NaN
if ((a == 0.0d) && (b == 0.0d)
&& (Double.doubleToLongBits(b) == negativeZeroDoubleBits)) {
return b;
}
return (a <= b) ? a : b;
}
/**
* Returns the size of an ulp of the argument. An ulp of a
* {@code double} value is the positive distance between this
* floating-point value and the {@code double} value next
* larger in magnitude. Note that for non-NaN <i>x</i>,
* <code>ulp(-<i>x</i>) == ulp(<i>x</i>)</code>.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive or negative infinity, then the
* result is positive infinity.
* <li> If the argument is positive or negative zero, then the result is
* {@code Double.MIN_VALUE}.
* <li> If the argument is ±{@code Double.MAX_VALUE}, then
* the result is equal to 2<sup>971</sup>.
* </ul>
*
* @param d the floating-point value whose ulp is to be returned
* @return the size of an ulp of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static double ulp(double d) {
return sun.misc.FpUtils.ulp(d);
}
/**
* Returns the size of an ulp of the argument. An ulp of a
* {@code float} value is the positive distance between this
* floating-point value and the {@code float} value next
* larger in magnitude. Note that for non-NaN <i>x</i>,
* <code>ulp(-<i>x</i>) == ulp(<i>x</i>)</code>.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive or negative infinity, then the
* result is positive infinity.
* <li> If the argument is positive or negative zero, then the result is
* {@code Float.MIN_VALUE}.
* <li> If the argument is ±{@code Float.MAX_VALUE}, then
* the result is equal to 2<sup>104</sup>.
* </ul>
*
* @param f the floating-point value whose ulp is to be returned
* @return the size of an ulp of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static float ulp(float f) {
return sun.misc.FpUtils.ulp(f);
}
/**
* Returns the signum function of the argument; zero if the argument
* is zero, 1.0 if the argument is greater than zero, -1.0 if the
* argument is less than zero.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive zero or negative zero, then the
* result is the same as the argument.
* </ul>
*
* @param d the floating-point value whose signum is to be returned
* @return the signum function of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static double signum(double d) {
return sun.misc.FpUtils.signum(d);
}
/**
* Returns the signum function of the argument; zero if the argument
* is zero, 1.0f if the argument is greater than zero, -1.0f if the
* argument is less than zero.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, then the result is NaN.
* <li> If the argument is positive zero or negative zero, then the
* result is the same as the argument.
* </ul>
*
* @param f the floating-point value whose signum is to be returned
* @return the signum function of the argument
* @author Joseph D. Darcy
* @since 1.5
*/
public static float signum(float f) {
return sun.misc.FpUtils.signum(f);
}
/**
* Returns the hyperbolic sine of a {@code double} value.
* The hyperbolic sine of <i>x</i> is defined to be
* (<i>e<sup>x</sup> - e<sup>-x</sup></i>)/2
* where <i>e</i> is {@linkplain Math#E Euler''s number}.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is infinite, then the result is an infinity
* with the same sign as the argument.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param x The number whose hyperbolic sine is to be returned.
* @return The hyperbolic sine of {@code x}.
* @since 1.5
*/
public static native double sinh(double x);
/**
* Returns the hyperbolic cosine of a {@code double} value.
* The hyperbolic cosine of <i>x</i> is defined to be
* (<i>e<sup>x</sup> + e<sup>-x</sup></i>)/2
* where <i>e</i> is {@linkplain Math#E Euler''s number}.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is infinite, then the result is positive
* infinity.
*
* <li>If the argument is zero, then the result is {@code 1.0}.
*
* </ul>
*
* @param x The number whose hyperbolic cosine is to be returned.
* @return The hyperbolic cosine of {@code x}.
* @since 1.5
*/
public static native double cosh(double x);
/**
* Returns the hyperbolic tangent of a {@code double} value.
* The hyperbolic tangent of <i>x</i> is defined to be
* (<i>e<sup>x</sup> - e<sup>-x</sup></i>)/(<i>e<sup>x</sup> + e<sup>-x</sup></i>),
* in other words, {@linkplain Math#sinh
* sinh(<i>x</i>)}/{@linkplain Math#cosh cosh(<i>x</i>)}. Note
* that the absolute value of the exact tanh is always less than
* 1.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN, then the result is NaN.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* <li>If the argument is positive infinity, then the result is
* {@code +1.0}.
*
* <li>If the argument is negative infinity, then the result is
* {@code -1.0}.
*
* </ul>
*
* @param x The number whose hyperbolic tangent is to be returned.
* @return The hyperbolic tangent of {@code x}.
* @since 1.5
*/
public static native double tanh(double x);
/**
* Returns sqrt(<i>x</i><sup>2</sup> +<i>y</i><sup>2</sup>)
* without intermediate overflow or underflow.
*
* <p>Special cases:
* <ul>
*
* <li> If either argument is infinite, then the result
* is positive infinity.
*
* <li> If either argument is NaN and neither argument is infinite,
* then the result is NaN.
*
* </ul>
*
* @param x a value
* @param y a value
* @return sqrt(<i>x</i><sup>2</sup> +<i>y</i><sup>2</sup>)
* without intermediate overflow or underflow
* @since 1.5
*/
public static native double hypot(double x, double y);
/**
* Returns <i>e</i><sup>x</sup> -1. Note that for values of
* <i>x</i> near 0, the exact sum of
* {@code expm1(x)} + 1 is much closer to the true
* result of <i>e</i><sup>x</sup> than {@code exp(x)}.
*
* <p>Special cases:
* <ul>
* <li>If the argument is NaN, the result is NaN.
*
* <li>If the argument is positive infinity, then the result is
* positive infinity.
*
* <li>If the argument is negative infinity, then the result is
* -1.0.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param x the exponent to raise <i>e</i> to in the computation of
* <i>e</i><sup>{@code x}</sup> -1.
* @return the value <i>e</i><sup>{@code x}</sup> - 1.
* @since 1.5
*/
public static native double expm1(double x);
/**
* Returns the natural logarithm of the sum of the argument and 1.
* Note that for small values {@code x}, the result of
* {@code log1p(x)} is much closer to the true result of ln(1
* + {@code x}) than the floating-point evaluation of
* {@code log(1.0+x)}.
*
* <p>Special cases:
* <ul>
*
* <li>If the argument is NaN or less than -1, then the result is
* NaN.
*
* <li>If the argument is positive infinity, then the result is
* positive infinity.
*
* <li>If the argument is negative one, then the result is
* negative infinity.
*
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.
*
* </ul>
*
* @param x a value
* @return the value ln({@code x} + 1), the natural
* log of {@code x} + 1
* @since 1.5
*/
public static native double log1p(double x);
/**
* Returns the first floating-point argument with the sign of the
* second floating-point argument. For this method, a NaN
* {@code sign} argument is always treated as if it were
* positive.
*
* @param magnitude the parameter providing the magnitude of the result
* @param sign the parameter providing the sign of the result
* @return a value with the magnitude of {@code magnitude}
* and the sign of {@code sign}.
* @since 1.6
*/
public static double copySign(double magnitude, double sign) {
return sun.misc.FpUtils.copySign(magnitude, sign);
}
/**
* Returns the first floating-point argument with the sign of the
* second floating-point argument. For this method, a NaN
* {@code sign} argument is always treated as if it were
* positive.
*
* @param magnitude the parameter providing the magnitude of the result
* @param sign the parameter providing the sign of the result
* @return a value with the magnitude of {@code magnitude}
* and the sign of {@code sign}.
* @since 1.6
*/
public static float copySign(float magnitude, float sign) {
return sun.misc.FpUtils.copySign(magnitude, sign);
}
/**
* Returns the unbiased exponent used in the representation of a
* {@code float}. Special cases:
*
* <ul>
* <li>If the argument is NaN or infinite, then the result is
* {@link Float#MAX_EXPONENT} + 1.
* <li>If the argument is zero or subnormal, then the result is
* {@link Float#MIN_EXPONENT} -1.
* </ul>
* @param f a {@code float} value
* @since 1.6
*/
public static int getExponent(float f) {
return sun.misc.FpUtils.getExponent(f);
}
/**
* Returns the unbiased exponent used in the representation of a
* {@code double}. Special cases:
*
* <ul>
* <li>If the argument is NaN or infinite, then the result is
* {@link Double#MAX_EXPONENT} + 1.
* <li>If the argument is zero or subnormal, then the result is
* {@link Double#MIN_EXPONENT} -1.
* </ul>
* @param d a {@code double} value
* @since 1.6
*/
public static int getExponent(double d) {
return sun.misc.FpUtils.getExponent(d);
}
/**
* Returns the floating-point number adjacent to the first
* argument in the direction of the second argument. If both
* arguments compare as equal the second argument is returned.
*
* <p>Special cases:
* <ul>
* <li> If either argument is a NaN, then NaN is returned.
*
* <li> If both arguments are signed zeros, {@code direction}
* is returned unchanged (as implied by the requirement of
* returning the second argument if the arguments compare as
* equal).
*
* <li> If {@code start} is
* ±{@link Double#MIN_VALUE} and {@code direction}
* has a value such that the result should have a smaller
* magnitude, then a zero with the same sign as {@code start}
* is returned.
*
* <li> If {@code start} is infinite and
* {@code direction} has a value such that the result should
* have a smaller magnitude, {@link Double#MAX_VALUE} with the
* same sign as {@code start} is returned.
*
* <li> If {@code start} is equal to ±
* {@link Double#MAX_VALUE} and {@code direction} has a
* value such that the result should have a larger magnitude, an
* infinity with same sign as {@code start} is returned.
* </ul>
*
* @param start starting floating-point value
* @param direction value indicating which of
* {@code start}''s neighbors or {@code start} should
* be returned
* @return The floating-point number adjacent to {@code start} in the
* direction of {@code direction}.
* @since 1.6
*/
public static double nextAfter(double start, double direction) {
return sun.misc.FpUtils.nextAfter(start, direction);
}
/**
* Returns the floating-point number adjacent to the first
* argument in the direction of the second argument. If both
* arguments compare as equal a value equivalent to the second argument
* is returned.
*
* <p>Special cases:
* <ul>
* <li> If either argument is a NaN, then NaN is returned.
*
* <li> If both arguments are signed zeros, a value equivalent
* to {@code direction} is returned.
*
* <li> If {@code start} is
* ±{@link Float#MIN_VALUE} and {@code direction}
* has a value such that the result should have a smaller
* magnitude, then a zero with the same sign as {@code start}
* is returned.
*
* <li> If {@code start} is infinite and
* {@code direction} has a value such that the result should
* have a smaller magnitude, {@link Float#MAX_VALUE} with the
* same sign as {@code start} is returned.
*
* <li> If {@code start} is equal to ±
* {@link Float#MAX_VALUE} and {@code direction} has a
* value such that the result should have a larger magnitude, an
* infinity with same sign as {@code start} is returned.
* </ul>
*
* @param start starting floating-point value
* @param direction value indicating which of
* {@code start}''s neighbors or {@code start} should
* be returned
* @return The floating-point number adjacent to {@code start} in the
* direction of {@code direction}.
* @since 1.6
*/
public static float nextAfter(float start, double direction) {
return sun.misc.FpUtils.nextAfter(start, direction);
}
/**
* Returns the floating-point value adjacent to {@code d} in
* the direction of positive infinity. This method is
* semantically equivalent to {@code nextAfter(d,
* Double.POSITIVE_INFINITY)}; however, a {@code nextUp}
* implementation may run faster than its equivalent
* {@code nextAfter} call.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, the result is NaN.
*
* <li> If the argument is positive infinity, the result is
* positive infinity.
*
* <li> If the argument is zero, the result is
* {@link Double#MIN_VALUE}
*
* </ul>
*
* @param d starting floating-point value
* @return The adjacent floating-point value closer to positive
* infinity.
* @since 1.6
*/
public static double nextUp(double d) {
return sun.misc.FpUtils.nextUp(d);
}
/**
* Returns the floating-point value adjacent to {@code f} in
* the direction of positive infinity. This method is
* semantically equivalent to {@code nextAfter(f,
* Float.POSITIVE_INFINITY)}; however, a {@code nextUp}
* implementation may run faster than its equivalent
* {@code nextAfter} call.
*
* <p>Special Cases:
* <ul>
* <li> If the argument is NaN, the result is NaN.
*
* <li> If the argument is positive infinity, the result is
* positive infinity.
*
* <li> If the argument is zero, the result is
* {@link Float#MIN_VALUE}
*
* </ul>
*
* @param f starting floating-point value
* @return The adjacent floating-point value closer to positive
* infinity.
* @since 1.6
*/
public static float nextUp(float f) {
return sun.misc.FpUtils.nextUp(f);
}
/**
* Return {@code d} ×
* 2<sup>{@code scaleFactor}</sup> rounded as if performed
* by a single correctly rounded floating-point multiply to a
* member of the double value set. See the Java
* Language Specification for a discussion of floating-point
* value sets. If the exponent of the result is between {@link
* Double#MIN_EXPONENT} and {@link Double#MAX_EXPONENT}, the
* answer is calculated exactly. If the exponent of the result
* would be larger than {@code Double.MAX_EXPONENT}, an
* infinity is returned. Note that if the result is subnormal,
* precision may be lost; that is, when {@code scalb(x, n)}
* is subnormal, {@code scalb(scalb(x, n), -n)} may not equal
* <i>x</i>. When the result is non-NaN, the result has the same
* sign as {@code d}.
*
* <p>Special cases:
* <ul>
* <li> If the first argument is NaN, NaN is returned.
* <li> If the first argument is infinite, then an infinity of the
* same sign is returned.
* <li> If the first argument is zero, then a zero of the same
* sign is returned.
* </ul>
*
* @param d number to be scaled by a power of two.
* @param scaleFactor power of 2 used to scale {@code d}
* @return {@code d} × 2<sup>{@code scaleFactor}</sup>
* @since 1.6
*/
public static double scalb(double d, int scaleFactor) {
return sun.misc.FpUtils.scalb(d, scaleFactor);
}
/**
* Return {@code f} ×
* 2<sup>{@code scaleFactor}</sup> rounded as if performed
* by a single correctly rounded floating-point multiply to a
* member of the float value set. See the Java
* Language Specification for a discussion of floating-point
* value sets. If the exponent of the result is between {@link
* Float#MIN_EXPONENT} and {@link Float#MAX_EXPONENT}, the
* answer is calculated exactly. If the exponent of the result
* would be larger than {@code Float.MAX_EXPONENT}, an
* infinity is returned. Note that if the result is subnormal,
* precision may be lost; that is, when {@code scalb(x, n)}
* is subnormal, {@code scalb(scalb(x, n), -n)} may not equal
* <i>x</i>. When the result is non-NaN, the result has the same
* sign as {@code f}.
*
* <p>Special cases:
* <ul>
* <li> If the first argument is NaN, NaN is returned.
* <li> If the first argument is infinite, then an infinity of the
* same sign is returned.
* <li> If the first argument is zero, then a zero of the same
* sign is returned.
* </ul>
*
* @param f number to be scaled by a power of two.
* @param scaleFactor power of 2 used to scale {@code f}
* @return {@code f} × 2<sup>{@code scaleFactor}</sup>
* @since 1.6
*/
public static float scalb(float f, int scaleFactor) {
return sun.misc.FpUtils.scalb(f, scaleFactor);
}
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 22:29:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_04c
result := JavaParserII parse:'
/**
*/
package java.lang;
import java.util.Random;
import sun.misc.FpUtils;
/**
* The class {@code StrictMath} contains methods for performing basic
* ...
*/
public final class StrictMath {
/**
* Don''t let anyone instantiate this class.
*/
private StrictMath() {}
/**
* The {@code double} value that is closer than any other to
* <i>e</i>, the base of the natural logarithms.
*/
public static final double E = 2.7182818284590452354;
/**
* The {@code double} value that is closer than any other to
* <i>pi</i>, the ratio of the circumference of a circle to its
* diameter.
*/
public static final double PI = 3.14159265358979323846;
/**
* Returns the trigonometric sine of an angle. Special cases:
* <ul><li>If the argument is NaN or an infinity, then the
* result is NaN.
* <li>If the argument is zero, then the result is a zero with the
* same sign as the argument.</ul>
*
* @param a an angle, in radians.
* @return the sine of the argument.
*/
public static native double sin(double a);
private static synchronized void initRNG() {
if (randomNumberGenerator == null)
randomNumberGenerator = new Random();
}
/**
* Return {@code f} ×
* ...
*/
public static float scalb(float f, int scaleFactor) {
return sun.misc.FpUtils.scalb(f, scaleFactor);
}
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 22:32:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_05a
result := JavaParserII parse:'
/*
* Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/* We use APIs that access the standard Unix environ array, which
* is defined by UNIX98 to look like:
*
* char **environ;
*
* These are unsorted, case-sensitive, null-terminated arrays of bytes
* of the form FOO=BAR\000 which are usually encoded in the user''s
* default encoding (file.encoding is an excellent choice for
* encoding/decoding these). However, even though the user cannot
* directly access the underlying byte representation, we take pains
* to pass on the child the exact byte representation we inherit from
* the parent process for any environment name or value not created by
* Javaland. So we keep track of all the byte representations.
*
* Internally, we define the types Variable and Value that exhibit
* String/byteArray duality. The internal representation of the
* environment then looks like a Map<Variable,Value>. But we don''t
* expose this to the user -- we only provide a Map<String,String>
* view, although we could also provide a Map<byte[],byte[]> view.
*
* The non-private methods in this class are not for general use even
* within this package. Instead, they are the system-dependent parts
* of the system-independent method of the same name. Don''t even
* think of using this class unless your method''s name appears below.
*
* @author Martin Buchholz
* @since 1.5
*/
package java.lang;
import java.io.*;
import java.util.*;
final class ProcessEnvironment
{
private static final HashMap<Variable,Value> theEnvironment;
private static final Map<String,String> theUnmodifiableEnvironment;
static final int MIN_NAME_LENGTH = 0;
static {
// We cache the C environment. This means that subsequent calls
// to putenv/setenv from C will not be visible from Java code.
byte[][] environ = environ();
theEnvironment = new HashMap<Variable,Value>(environ.length/2 + 3);
// Read environment variables back to front,
// so that earlier variables override later ones.
for (int i = environ.length-1; i > 0; i-=2)
theEnvironment.put(Variable.valueOf(environ[i-1]),
Value.valueOf(environ[i]));
theUnmodifiableEnvironment
= Collections.unmodifiableMap
(new StringEnvironment(theEnvironment));
}
/* Only for use by System.getenv(String) */
static String getenv(String name) {
return theUnmodifiableEnvironment.get(name);
}
/* Only for use by System.getenv() */
static Map<String,String> getenv() {
return theUnmodifiableEnvironment;
}
/* Only for use by ProcessBuilder.environment() */
static Map<String,String> environment() {
return new StringEnvironment
((Map<Variable,Value>)(theEnvironment.clone()));
}
/* Only for use by Runtime.exec(...String[]envp...) */
static Map<String,String> emptyEnvironment(int capacity) {
return new StringEnvironment(new HashMap<Variable,Value>(capacity));
}
private static native byte[][] environ();
// This class is not instantiable.
private ProcessEnvironment() {}
// Check that name is suitable for insertion into Environment map
private static void validateVariable(String name) {
if (name.indexOf(''='') !!= -1 ||
name.indexOf(''\u0000'') !!= -1)
throw new IllegalArgumentException
("Invalid environment variable name: \"" + name + "\"");
}
// Check that value is suitable for insertion into Environment map
private static void validateValue(String value) {
if (value.indexOf(''\u0000'') !!= -1)
throw new IllegalArgumentException
("Invalid environment variable value: \"" + value + "\"");
}
// A class hiding the byteArray-String duality of
// text data on Unixoid operating systems.
private static abstract class ExternalData {
protected final String str;
protected final byte[] bytes;
protected ExternalData(String str, byte[] bytes) {
this.str = str;
this.bytes = bytes;
}
public byte[] getBytes() {
return bytes;
}
public String toString() {
return str;
}
public boolean equals(Object o) {
return o instanceof ExternalData
&& arrayEquals(getBytes(), ((ExternalData) o).getBytes());
}
public int hashCode() {
return arrayHash(getBytes());
}
}
private static class Variable
extends ExternalData implements Comparable<Variable>
{
protected Variable(String str, byte[] bytes) {
super(str, bytes);
}
public static Variable valueOfQueryOnly(Object str) {
return valueOfQueryOnly((String) str);
}
public static Variable valueOfQueryOnly(String str) {
return new Variable(str, str.getBytes());
}
public static Variable valueOf(String str) {
validateVariable(str);
return valueOfQueryOnly(str);
}
public static Variable valueOf(byte[] bytes) {
return new Variable(new String(bytes), bytes);
}
public int compareTo(Variable variable) {
return arrayCompare(getBytes(), variable.getBytes());
}
public boolean equals(Object o) {
return o instanceof Variable && super.equals(o);
}
}
private static class Value
extends ExternalData implements Comparable<Value>
{
protected Value(String str, byte[] bytes) {
super(str, bytes);
}
public static Value valueOfQueryOnly(Object str) {
return valueOfQueryOnly((String) str);
}
public static Value valueOfQueryOnly(String str) {
return new Value(str, str.getBytes());
}
public static Value valueOf(String str) {
validateValue(str);
return valueOfQueryOnly(str);
}
public static Value valueOf(byte[] bytes) {
return new Value(new String(bytes), bytes);
}
public int compareTo(Value value) {
return arrayCompare(getBytes(), value.getBytes());
}
public boolean equals(Object o) {
return o instanceof Value && super.equals(o);
}
}
// This implements the String map view the user sees.
private static class StringEnvironment
extends AbstractMap<String,String>
{
private Map<Variable,Value> m;
private static String toString(Value v) {
return v == null ? null : v.toString();
}
public StringEnvironment(Map<Variable,Value> m) {this.m = m;}
public int size() {return m.size();}
public boolean isEmpty() {return m.isEmpty();}
public void clear() { m.clear();}
public boolean containsKey(Object key) {
return m.containsKey(Variable.valueOfQueryOnly(key));
}
public boolean containsValue(Object value) {
return m.containsValue(Value.valueOfQueryOnly(value));
}
public String get(Object key) {
return toString(m.get(Variable.valueOfQueryOnly(key)));
}
public String put(String key, String value) {
return toString(m.put(Variable.valueOf(key),
Value.valueOf(value)));
}
public String remove(Object key) {
return toString(m.remove(Variable.valueOfQueryOnly(key)));
}
public Set<String> keySet() {
return new StringKeySet(m.keySet());
}
public Set<Map.Entry<String,String>> entrySet() {
return new StringEntrySet(m.entrySet());
}
public Collection<String> values() {
return new StringValues(m.values());
}
// It is technically feasible to provide a byte-oriented view
// as follows:
// public Map<byte[],byte[]> asByteArrayMap() {
// return new ByteArrayEnvironment(m);
// }
// Convert to Unix style environ as a monolithic byte array
// inspired by the Windows Environment Block, except we work
// exclusively with bytes instead of chars, and we need only
// one trailing NUL on Unix.
// This keeps the JNI as simple and efficient as possible.
public byte[] toEnvironmentBlock(int[]envc) {
int count = m.size() * 2; // For added ''='' and NUL
for (Map.Entry<Variable,Value> entry : m.entrySet()) {
count += entry.getKey().getBytes().length;
count += entry.getValue().getBytes().length;
}
byte[] block = new byte[count];
int i = 0;
for (Map.Entry<Variable,Value> entry : m.entrySet()) {
byte[] key = entry.getKey ().getBytes();
byte[] value = entry.getValue().getBytes();
System.arraycopy(key, 0, block, i, key.length);
i+=key.length;
block[i++] = (byte) ''='';
System.arraycopy(value, 0, block, i, value.length);
i+=value.length + 1;
// No need to write NUL byte explicitly
//block[i++] = (byte) ''\u0000'';
}
envc[0] = m.size();
return block;
}
}
static byte[] toEnvironmentBlock(Map<String,String> map, int[]envc) {
return map == null ? null :
((StringEnvironment)map).toEnvironmentBlock(envc);
}
private static class StringEntry
implements Map.Entry<String,String>
{
private final Map.Entry<Variable,Value> e;
public StringEntry(Map.Entry<Variable,Value> e) {this.e = e;}
public String getKey() {return e.getKey().toString();}
public String getValue() {return e.getValue().toString();}
public String setValue(String newValue) {
return e.setValue(Value.valueOf(newValue)).toString();
}
public String toString() {return getKey() + "=" + getValue();}
public boolean equals(Object o) {
return o instanceof StringEntry
&& e.equals(((StringEntry)o).e);
}
public int hashCode() {return e.hashCode();}
}
private static class StringEntrySet
extends AbstractSet<Map.Entry<String,String>>
{
private final Set<Map.Entry<Variable,Value>> s;
public StringEntrySet(Set<Map.Entry<Variable,Value>> s) {this.s = s;}
public int size() {return s.size();}
public boolean isEmpty() {return s.isEmpty();}
public void clear() { s.clear();}
public Iterator<Map.Entry<String,String>> iterator() {
return new Iterator<Map.Entry<String,String>>() {
Iterator<Map.Entry<Variable,Value>> i = s.iterator();
public boolean hasNext() {return i.hasNext();}
public Map.Entry<String,String> next() {
return new StringEntry(i.next());
}
public void remove() {i.remove();}
};
}
private static Map.Entry<Variable,Value> vvEntry(final Object o) {
if (o instanceof StringEntry)
return ((StringEntry)o).e;
return new Map.Entry<Variable,Value>() {
public Variable getKey() {
return Variable.valueOfQueryOnly(((Map.Entry)o).getKey());
}
public Value getValue() {
return Value.valueOfQueryOnly(((Map.Entry)o).getValue());
}
public Value setValue(Value value) {
throw new UnsupportedOperationException();
}
};
}
public boolean contains(Object o) { return s.contains(vvEntry(o)); }
public boolean remove(Object o) { return s.remove(vvEntry(o)); }
public boolean equals(Object o) {
return o instanceof StringEntrySet
&& s.equals(((StringEntrySet) o).s);
}
public int hashCode() {return s.hashCode();}
}
private static class StringValues
extends AbstractCollection<String>
{
private final Collection<Value> c;
public StringValues(Collection<Value> c) {this.c = c;}
public int size() {return c.size();}
public boolean isEmpty() {return c.isEmpty();}
public void clear() { c.clear();}
public Iterator<String> iterator() {
return new Iterator<String>() {
Iterator<Value> i = c.iterator();
public boolean hasNext() {return i.hasNext();}
public String next() {return i.next().toString();}
public void remove() {i.remove();}
};
}
public boolean contains(Object o) {
return c.contains(Value.valueOfQueryOnly(o));
}
public boolean remove(Object o) {
return c.remove(Value.valueOfQueryOnly(o));
}
public boolean equals(Object o) {
return o instanceof StringValues
&& c.equals(((StringValues)o).c);
}
public int hashCode() {return c.hashCode();}
}
private static class StringKeySet extends AbstractSet<String> {
private final Set<Variable> s;
public StringKeySet(Set<Variable> s) {this.s = s;}
public int size() {return s.size();}
public boolean isEmpty() {return s.isEmpty();}
public void clear() { s.clear();}
public Iterator<String> iterator() {
return new Iterator<String>() {
Iterator<Variable> i = s.iterator();
public boolean hasNext() {return i.hasNext();}
public String next() {return i.next().toString();}
public void remove() { i.remove();}
};
}
public boolean contains(Object o) {
return s.contains(Variable.valueOfQueryOnly(o));
}
public boolean remove(Object o) {
return s.remove(Variable.valueOfQueryOnly(o));
}
}
// Replace with general purpose method someday
private static int arrayCompare(byte[]x, byte[] y) {
int min = x.length < y.length ? x.length : y.length;
for (int i = 0; i < min; i++)
if (x[i] !!= y[i])
return x[i] - y[i];
return x.length - y.length;
}
// Replace with general purpose method someday
private static boolean arrayEquals(byte[] x, byte[] y) {
if (x.length !!= y.length)
return false;
for (int i = 0; i < x.length; i++)
if (x[i] !!= y[i])
return false;
return true;
}
// Replace with general purpose method someday
private static int arrayHash(byte[] x) {
int hash = 0;
for (int i = 0; i < x.length; i++)
hash = 31 * hash + x[i];
return hash;
}
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 22:57:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_05b
result := JavaParserII parse:'
package java.lang;
import java.io.*;
import java.util.*;
final class ProcessEnvironment
{
private static final HashMap<Variable,Value> theEnvironment;
private static final Map<String,String> theUnmodifiableEnvironment;
static final int MIN_NAME_LENGTH = 0;
static {
// We cache the C environment. This means that subsequent calls
// to putenv/setenv from C will not be visible from Java code.
byte[][] environ = environ();
theEnvironment = new HashMap<Variable,Value>(environ.length/2 + 3);
// Read environment variables back to front,
// so that earlier variables override later ones.
for (int i = environ.length-1; i > 0; i-=2)
theEnvironment.put(Variable.valueOf(environ[i-1]),
Value.valueOf(environ[i]));
theUnmodifiableEnvironment
= Collections.unmodifiableMap
(new StringEnvironment(theEnvironment));
}
/* Only for use by System.getenv(String) */
static String getenv(String name) {
return theUnmodifiableEnvironment.get(name);
}
/* Only for use by System.getenv() */
static Map<String,String> getenv() {
return theUnmodifiableEnvironment;
}
private static abstract class ExternalData {
protected final String str;
protected final byte[] bytes;
protected ExternalData(String str, byte[] bytes) {
this.str = str;
this.bytes = bytes;
}
public byte[] getBytes() {
return bytes;
}
public String toString() {
return str;
}
public boolean equals(Object o) {
return o instanceof ExternalData
&& arrayEquals(getBytes(), ((ExternalData) o).getBytes());
}
public int hashCode() {
return arrayHash(getBytes());
}
}
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 22:58:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_05c
result := JavaParserII parse:'
package java.lang;
import java.io.*;
import java.util.*;
final class ProcessEnvironment
{
private static final HashMap<Variable,Value> theEnvironment;
private static final Map<String,String> theUnmodifiableEnvironment;
static final int MIN_NAME_LENGTH = 0;
static {
// We cache the C environment. This means that subsequent calls
// to putenv/setenv from C will not be visible from Java code.
byte[][] environ = environ();
theEnvironment = new HashMap<Variable,Value>(environ.length/2 + 3);
// Read environment variables back to front,
// so that earlier variables override later ones.
for (int i = environ.length-1; i > 0; i-=2)
theEnvironment.put(Variable.valueOf(environ[i-1]),
Value.valueOf(environ[i]));
theUnmodifiableEnvironment
= Collections.unmodifiableMap
(new StringEnvironment(theEnvironment));
}
/* Only for use by System.getenv(String) */
static String getenv(String name) {
return theUnmodifiableEnvironment.get(name);
}
/* Only for use by System.getenv() */
static Map<String,String> getenv() {
return theUnmodifiableEnvironment;
}
private static abstract class ExternalData {
protected final String str;
protected final byte[] bytes;
protected ExternalData(String str, byte[] bytes) {
this.str = str;
this.bytes = bytes;
}
public byte[] getBytes() {
return bytes;
}
public String toString() {
return str;
}
public boolean equals(Object o) {
return o instanceof ExternalData
&& arrayEquals(getBytes(), ((ExternalData) o).getBytes());
}
public int hashCode() {
return arrayHash(getBytes());
}
}
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 22:58:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_05d
result := JavaParserII parse:'
package java.lang;
import java.io.*;
import java.util.*;
final class ProcessEnvironment
{
// This implements the String map view the user sees.
private static class StringEnvironment
extends AbstractMap<String,String>
{
public Set<Map.Entry<String,String>> entrySet() {
return new StringEntrySet(m.entrySet());
}
}
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 22:59:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_06a
result := JavaParserII parse:'
/*
* Copyright (c) 1994, 2009, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package java.lang;
import sun.misc.FloatingDecimal;
import sun.misc.FpUtils;
import sun.misc.DoubleConsts;
/**
* The {@code Double} class wraps a value of the primitive type
* {@code double} in an object. An object of type
* {@code Double} contains a single field whose type is
* {@code double}.
*
* <p>In addition, this class provides several methods for converting a
* {@code double} to a {@code String} and a
* {@code String} to a {@code double}, as well as other
* constants and methods useful when dealing with a
* {@code double}.
*
* @author Lee Boynton
* @author Arthur van Hoff
* @author Joseph D. Darcy
* @since JDK1.0
*/
public final class Double extends Number implements Comparable<Double> {
/**
* A constant holding the positive infinity of type
* {@code double}. It is equal to the value returned by
* {@code Double.longBitsToDouble(0x7ff0000000000000L)}.
*/
public static final double POSITIVE_INFINITY = 1.0 / 0.0;
/**
* A constant holding the negative infinity of type
* {@code double}. It is equal to the value returned by
* {@code Double.longBitsToDouble(0xfff0000000000000L)}.
*/
public static final double NEGATIVE_INFINITY = -1.0 / 0.0;
/**
* A constant holding a Not-a-Number (NaN) value of type
* {@code double}. It is equivalent to the value returned by
* {@code Double.longBitsToDouble(0x7ff8000000000000L)}.
*/
public static final double NaN = 0.0d / 0.0;
/**
* A constant holding the largest positive finite value of type
* {@code double},
* (2-2<sup>-52</sup>)·2<sup>1023</sup>. It is equal to
* the hexadecimal floating-point literal
* {@code 0x1.fffffffffffffP+1023} and also equal to
* {@code Double.longBitsToDouble(0x7fefffffffffffffL)}.
*/
public static final double MAX_VALUE = 0x1.fffffffffffffP+1023; // 1.7976931348623157e+308
/**
* A constant holding the smallest positive normal value of type
* {@code double}, 2<sup>-1022</sup>. It is equal to the
* hexadecimal floating-point literal {@code 0x1.0p-1022} and also
* equal to {@code Double.longBitsToDouble(0x0010000000000000L)}.
*
* @since 1.6
*/
public static final double MIN_NORMAL = 0x1.0p-1022; // 2.2250738585072014E-308
/**
* A constant holding the smallest positive nonzero value of type
* {@code double}, 2<sup>-1074</sup>. It is equal to the
* hexadecimal floating-point literal
* {@code 0x0.0000000000001P-1022} and also equal to
* {@code Double.longBitsToDouble(0x1L)}.
*/
public static final double MIN_VALUE = 0x0.0000000000001P-1022; // 4.9e-324
/**
* Maximum exponent a finite {@code double} variable may have.
* It is equal to the value returned by
* {@code Math.getExponent(Double.MAX_VALUE)}.
*
* @since 1.6
*/
public static final int MAX_EXPONENT = 1023;
/**
* Minimum exponent a normalized {@code double} variable may
* have. It is equal to the value returned by
* {@code Math.getExponent(Double.MIN_NORMAL)}.
*
* @since 1.6
*/
public static final int MIN_EXPONENT = -1022;
/**
* The number of bits used to represent a {@code double} value.
*
* @since 1.5
*/
public static final int SIZE = 64;
/**
* The {@code Class} instance representing the primitive type
* {@code double}.
*
* @since JDK1.1
*/
public static final Class<Double> TYPE = (Class<Double>) Class.getPrimitiveClass("double");
/**
* Returns a string representation of the {@code double}
* argument. All characters mentioned below are ASCII characters.
* <ul>
* <li>If the argument is NaN, the result is the string
* "{@code NaN}".
* <li>Otherwise, the result is a string that represents the sign and
* magnitude (absolute value) of the argument. If the sign is negative,
* the first character of the result is ''{@code -}''
* (<code>''\u002D''</code>); if the sign is positive, no sign character
* appears in the result. As for the magnitude <i>m</i>:
* <ul>
* <li>If <i>m</i> is infinity, it is represented by the characters
* {@code "Infinity"}; thus, positive infinity produces the result
* {@code "Infinity"} and negative infinity produces the result
* {@code "-Infinity"}.
*
* <li>If <i>m</i> is zero, it is represented by the characters
* {@code "0.0"}; thus, negative zero produces the result
* {@code "-0.0"} and positive zero produces the result
* {@code "0.0"}.
*
* <li>If <i>m</i> is greater than or equal to 10<sup>-3</sup> but less
* than 10<sup>7</sup>, then it is represented as the integer part of
* <i>m</i>, in decimal form with no leading zeroes, followed by
* ''{@code .}'' (<code>''\u002E''</code>), followed by one or
* more decimal digits representing the fractional part of <i>m</i>.
*
* <li>If <i>m</i> is less than 10<sup>-3</sup> or greater than or
* equal to 10<sup>7</sup>, then it is represented in so-called
* "computerized scientific notation." Let <i>n</i> be the unique
* integer such that 10<sup><i>n</i></sup> ≤ <i>m</i> {@literal <}
* 10<sup><i>n</i>+1</sup>; then let <i>a</i> be the
* mathematically exact quotient of <i>m</i> and
* 10<sup><i>n</i></sup> so that 1 ≤ <i>a</i> {@literal <} 10. The
* magnitude is then represented as the integer part of <i>a</i>,
* as a single decimal digit, followed by ''{@code .}''
* (<code>''\u002E''</code>), followed by decimal digits
* representing the fractional part of <i>a</i>, followed by the
* letter ''{@code E};'' (<code>''\u0045''</code>), followed
* by a representation of <i>n</i> as a decimal integer, as
* produced by the method {@link Integer#toString(int)}.
* </ul>
* </ul>
* How many digits must be printed for the fractional part of
* <i>m</i> or <i>a</i>? There must be at least one digit to represent
* the fractional part, and beyond that as many, but only as many, more
* digits as are needed to uniquely distinguish the argument value from
* adjacent values of type {@code double}. That is, suppose that
* <i>x</i> is the exact mathematical value represented by the decimal
* representation produced by this method for a finite nonzero argument
* <i>d</i>. Then <i>d</i> must be the {@code double} value nearest
* to <i>x</i>; or if two {@code double} values are equally close
* to <i>x</i>, then <i>d</i> must be one of them and the least
* significant bit of the significand of <i>d</i> must be {@code 0}.
*
* <p>To create localized string representations of a floating-point
* value, use subclasses of {@link java.text.NumberFormat}.
*
* @param d the {@code double} to be converted.
* @return a string representation of the argument.
*/
public static String toString(double d) {
return new FloatingDecimal(d).toJavaFormatString();
}
/**
* Returns a hexadecimal string representation of the
* {@code double} argument. All characters mentioned below
* are ASCII characters.
*
* <ul>
* <li>If the argument is NaN, the result is the string
* "{@code NaN}".
* <li>Otherwise, the result is a string that represents the sign
* and magnitude of the argument. If the sign is negative, the
* first character of the result is ''{@code -}''
* (<code>''\u002D''</code>); if the sign is positive, no sign
* character appears in the result. As for the magnitude <i>m</i>:
*
* <ul>
* <li>If <i>m</i> is infinity, it is represented by the string
* {@code "Infinity"}; thus, positive infinity produces the
* result {@code "Infinity"} and negative infinity produces
* the result {@code "-Infinity"}.
*
* <li>If <i>m</i> is zero, it is represented by the string
* {@code "0x0.0p0"}; thus, negative zero produces the result
* {@code "-0x0.0p0"} and positive zero produces the result
* {@code "0x0.0p0"}.
*
* <li>If <i>m</i> is a {@code double} value with a
* normalized representation, substrings are used to represent the
* significand and exponent fields. The significand is
* represented by the characters {@code "0x1."}
* followed by a lowercase hexadecimal representation of the rest
* of the significand as a fraction. Trailing zeros in the
* hexadecimal representation are removed unless all the digits
* are zero, in which case a single zero is used. Next, the
* exponent is represented by {@code "p"} followed
* by a decimal string of the unbiased exponent as if produced by
* a call to {@link Integer#toString(int) Integer.toString} on the
* exponent value.
*
* <li>If <i>m</i> is a {@code double} value with a subnormal
* representation, the significand is represented by the
* characters {@code "0x0."} followed by a
* hexadecimal representation of the rest of the significand as a
* fraction. Trailing zeros in the hexadecimal representation are
* removed. Next, the exponent is represented by
* {@code "p-1022"}. Note that there must be at
* least one nonzero digit in a subnormal significand.
*
* </ul>
*
* </ul>
*
* <table border>
* <caption><h3>Examples</h3></caption>
* <tr><th>Floating-point Value</th><th>Hexadecimal String</th>
* <tr><td>{@code 1.0}</td> <td>{@code 0x1.0p0}</td>
* <tr><td>{@code -1.0}</td> <td>{@code -0x1.0p0}</td>
* <tr><td>{@code 2.0}</td> <td>{@code 0x1.0p1}</td>
* <tr><td>{@code 3.0}</td> <td>{@code 0x1.8p1}</td>
* <tr><td>{@code 0.5}</td> <td>{@code 0x1.0p-1}</td>
* <tr><td>{@code 0.25}</td> <td>{@code 0x1.0p-2}</td>
* <tr><td>{@code Double.MAX_VALUE}</td>
* <td>{@code 0x1.fffffffffffffp1023}</td>
* <tr><td>{@code Minimum Normal Value}</td>
* <td>{@code 0x1.0p-1022}</td>
* <tr><td>{@code Maximum Subnormal Value}</td>
* <td>{@code 0x0.fffffffffffffp-1022}</td>
* <tr><td>{@code Double.MIN_VALUE}</td>
* <td>{@code 0x0.0000000000001p-1022}</td>
* </table>
* @param d the {@code double} to be converted.
* @return a hex string representation of the argument.
* @since 1.5
* @author Joseph D. Darcy
*/
public static String toHexString(double d) {
/*
* Modeled after the "a" conversion specifier in C99, section
* 7.19.6.1; however, the output of this method is more
* tightly specified.
*/
if (!!FpUtils.isFinite(d) )
// For infinity and NaN, use the decimal output.
return Double.toString(d);
else {
// Initialized to maximum size of output.
StringBuffer answer = new StringBuffer(24);
if (FpUtils.rawCopySign(1.0, d) == -1.0) // value is negative,
answer.append("-"); // so append sign info
answer.append("0x");
d = Math.abs(d);
if(d == 0.0) {
answer.append("0.0p0");
}
else {
boolean subnormal = (d < DoubleConsts.MIN_NORMAL);
// Isolate significand bits and OR in a high-order bit
// so that the string representation has a known
// length.
long signifBits = (Double.doubleToLongBits(d)
& DoubleConsts.SIGNIF_BIT_MASK) |
0x1000000000000000L;
// Subnormal values have a 0 implicit bit; normal
// values have a 1 implicit bit.
answer.append(subnormal ? "0." : "1.");
// Isolate the low-order 13 digits of the hex
// representation. If all the digits are zero,
// replace with a single 0; otherwise, remove all
// trailing zeros.
String signif = Long.toHexString(signifBits).substring(3,16);
answer.append(signif.equals("0000000000000") ? // 13 zeros
"0":
signif.replaceFirst("0{1,12}$", ""));
// If the value is subnormal, use the E_min exponent
// value for double; otherwise, extract and report d''s
// exponent (the representation of a subnormal uses
// E_min -1).
answer.append("p" + (subnormal ?
DoubleConsts.MIN_EXPONENT:
FpUtils.getExponent(d) ));
}
return answer.toString();
}
}
/**
* Returns a {@code Double} object holding the
* {@code double} value represented by the argument string
* {@code s}.
*
* <p>If {@code s} is {@code null}, then a
* {@code NullPointerException} is thrown.
*
* <p>Leading and trailing whitespace characters in {@code s}
* are ignored. Whitespace is removed as if by the {@link
* String#trim} method; that is, both ASCII space and control
* characters are removed. The rest of {@code s} should
* constitute a <i>FloatValue</i> as described by the lexical
* syntax rules:
*
* <blockquote>
* <dl>
* <dt><i>FloatValue:</i>
* <dd><i>Sign<sub>opt</sub></i> {@code NaN}
* <dd><i>Sign<sub>opt</sub></i> {@code Infinity}
* <dd><i>Sign<sub>opt</sub> FloatingPointLiteral</i>
* <dd><i>Sign<sub>opt</sub> HexFloatingPointLiteral</i>
* <dd><i>SignedInteger</i>
* </dl>
*
* <p>
*
* <dl>
* <dt><i>HexFloatingPointLiteral</i>:
* <dd> <i>HexSignificand BinaryExponent FloatTypeSuffix<sub>opt</sub></i>
* </dl>
*
* <p>
*
* <dl>
* <dt><i>HexSignificand:</i>
* <dd><i>HexNumeral</i>
* <dd><i>HexNumeral</i> {@code .}
* <dd>{@code 0x} <i>HexDigits<sub>opt</sub>
* </i>{@code .}<i> HexDigits</i>
* <dd>{@code 0X}<i> HexDigits<sub>opt</sub>
* </i>{@code .} <i>HexDigits</i>
* </dl>
*
* <p>
*
* <dl>
* <dt><i>BinaryExponent:</i>
* <dd><i>BinaryExponentIndicator SignedInteger</i>
* </dl>
*
* <p>
*
* <dl>
* <dt><i>BinaryExponentIndicator:</i>
* <dd>{@code p}
* <dd>{@code P}
* </dl>
*
* </blockquote>
*
* where <i>Sign</i>, <i>FloatingPointLiteral</i>,
* <i>HexNumeral</i>, <i>HexDigits</i>, <i>SignedInteger</i> and
* <i>FloatTypeSuffix</i> are as defined in the lexical structure
* sections of the <a
* href="http://java.sun.com/docs/books/jls/html/">Java Language
* Specification</a>. If {@code s} does not have the form of
* a <i>FloatValue</i>, then a {@code NumberFormatException}
* is thrown. Otherwise, {@code s} is regarded as
* representing an exact decimal value in the usual
* "computerized scientific notation" or as an exact
* hexadecimal value; this exact numerical value is then
* conceptually converted to an "infinitely precise"
* binary value that is then rounded to type {@code double}
* by the usual round-to-nearest rule of IEEE 754 floating-point
* arithmetic, which includes preserving the sign of a zero
* value.
*
* Note that the round-to-nearest rule also implies overflow and
* underflow behaviour; if the exact value of {@code s} is large
* enough in magnitude (greater than or equal to ({@link
* #MAX_VALUE} + {@link Math#ulp(double) ulp(MAX_VALUE)}/2),
* rounding to {@code double} will result in an infinity and if the
* exact value of {@code s} is small enough in magnitude (less
* than or equal to {@link #MIN_VALUE}/2), rounding to float will
* result in a zero.
*
* Finally, after rounding a {@code Double} object representing
* this {@code double} value is returned.
*
* <p> To interpret localized string representations of a
* floating-point value, use subclasses of {@link
* java.text.NumberFormat}.
*
* <p>Note that trailing format specifiers, specifiers that
* determine the type of a floating-point literal
* ({@code 1.0f} is a {@code float} value;
* {@code 1.0d} is a {@code double} value), do
* <em>not</em> influence the results of this method. In other
* words, the numerical value of the input string is converted
* directly to the target floating-point type. The two-step
* sequence of conversions, string to {@code float} followed
* by {@code float} to {@code double}, is <em>not</em>
* equivalent to converting a string directly to
* {@code double}. For example, the {@code float}
* literal {@code 0.1f} is equal to the {@code double}
* value {@code 0.10000000149011612}; the {@code float}
* literal {@code 0.1f} represents a different numerical
* value than the {@code double} literal
* {@code 0.1}. (The numerical value 0.1 cannot be exactly
* represented in a binary floating-point number.)
*
* <p>To avoid calling this method on an invalid string and having
* a {@code NumberFormatException} be thrown, the regular
* expression below can be used to screen the input string:
*
* <code>
* <pre>
* final String Digits = "(\\p{Digit}+)";
* final String HexDigits = "(\\p{XDigit}+)";
* // an exponent is ''e'' or ''E'' followed by an optionally
* // signed decimal integer.
* final String Exp = "[eE][+-]?"+Digits;
* final String fpRegex =
* ("[\\x00-\\x20]*"+ // Optional leading "whitespace"
* "[+-]?(" + // Optional sign character
* "NaN|" + // "NaN" string
* "Infinity|" + // "Infinity" string
*
* // A decimal floating-point string representing a finite positive
* // number without a leading sign has at most five basic pieces:
* // Digits . Digits ExponentPart FloatTypeSuffix
* //
* // Since this method allows integer-only strings as input
* // in addition to strings of floating-point literals, the
* // two sub-patterns below are simplifications of the grammar
* // productions from the Java Language Specification, 2nd
* // edition, section 3.10.2.
*
* // Digits ._opt Digits_opt ExponentPart_opt FloatTypeSuffix_opt
* "((("+Digits+"(\\.)?("+Digits+"?)("+Exp+")?)|"+
*
* // . Digits ExponentPart_opt FloatTypeSuffix_opt
* "(\\.("+Digits+")("+Exp+")?)|"+
*
* // Hexadecimal strings
* "((" +
* // 0[xX] HexDigits ._opt BinaryExponent FloatTypeSuffix_opt
* "(0[xX]" + HexDigits + "(\\.)?)|" +
*
* // 0[xX] HexDigits_opt . HexDigits BinaryExponent FloatTypeSuffix_opt
* "(0[xX]" + HexDigits + "?(\\.)" + HexDigits + ")" +
*
* ")[pP][+-]?" + Digits + "))" +
* "[fFdD]?))" +
* "[\\x00-\\x20]*");// Optional trailing "whitespace"
*
* if (Pattern.matches(fpRegex, myString))
* Double.valueOf(myString); // Will not throw NumberFormatException
* else {
* // Perform suitable alternative action
* }
* </pre>
* </code>
*
* @param s the string to be parsed.
* @return a {@code Double} object holding the value
* represented by the {@code String} argument.
* @throws NumberFormatException if the string does not contain a
* parsable number.
*/
public static Double valueOf(String s) throws NumberFormatException {
return new Double(FloatingDecimal.readJavaFormatString(s).doubleValue());
}
/**
* Returns a {@code Double} instance representing the specified
* {@code double} value.
* If a new {@code Double} instance is not required, this method
* should generally be used in preference to the constructor
* {@link #Double(double)}, as this method is likely to yield
* significantly better space and time performance by caching
* frequently requested values.
*
* @param d a double value.
* @return a {@code Double} instance representing {@code d}.
* @since 1.5
*/
public static Double valueOf(double d) {
return new Double(d);
}
/**
* Returns a new {@code double} initialized to the value
* represented by the specified {@code String}, as performed
* by the {@code valueOf} method of class
* {@code Double}.
*
* @param s the string to be parsed.
* @return the {@code double} value represented by the string
* argument.
* @throws NullPointerException if the string is null
* @throws NumberFormatException if the string does not contain
* a parsable {@code double}.
* @see java.lang.Double#valueOf(String)
* @since 1.2
*/
public static double parseDouble(String s) throws NumberFormatException {
return FloatingDecimal.readJavaFormatString(s).doubleValue();
}
/**
* Returns {@code true} if the specified number is a
* Not-a-Number (NaN) value, {@code false} otherwise.
*
* @param v the value to be tested.
* @return {@code true} if the value of the argument is NaN;
* {@code false} otherwise.
*/
static public boolean isNaN(double v) {
return (v !!= v);
}
/**
* Returns {@code true} if the specified number is infinitely
* large in magnitude, {@code false} otherwise.
*
* @param v the value to be tested.
* @return {@code true} if the value of the argument is positive
* infinity or negative infinity; {@code false} otherwise.
*/
static public boolean isInfinite(double v) {
return (v == POSITIVE_INFINITY) || (v == NEGATIVE_INFINITY);
}
/**
* The value of the Double.
*
* @serial
*/
private final double value;
/**
* Constructs a newly allocated {@code Double} object that
* represents the primitive {@code double} argument.
*
* @param value the value to be represented by the {@code Double}.
*/
public Double(double value) {
this.value = value;
}
/**
* Constructs a newly allocated {@code Double} object that
* represents the floating-point value of type {@code double}
* represented by the string. The string is converted to a
* {@code double} value as if by the {@code valueOf} method.
*
* @param s a string to be converted to a {@code Double}.
* @throws NumberFormatException if the string does not contain a
* parsable number.
* @see java.lang.Double#valueOf(java.lang.String)
*/
public Double(String s) throws NumberFormatException {
// REMIND: this is inefficient
this(valueOf(s).doubleValue());
}
/**
* Returns {@code true} if this {@code Double} value is
* a Not-a-Number (NaN), {@code false} otherwise.
*
* @return {@code true} if the value represented by this object is
* NaN; {@code false} otherwise.
*/
public boolean isNaN() {
return isNaN(value);
}
/**
* Returns {@code true} if this {@code Double} value is
* infinitely large in magnitude, {@code false} otherwise.
*
* @return {@code true} if the value represented by this object is
* positive infinity or negative infinity;
* {@code false} otherwise.
*/
public boolean isInfinite() {
return isInfinite(value);
}
/**
* Returns a string representation of this {@code Double} object.
* The primitive {@code double} value represented by this
* object is converted to a string exactly as if by the method
* {@code toString} of one argument.
*
* @return a {@code String} representation of this object.
* @see java.lang.Double#toString(double)
*/
public String toString() {
return toString(value);
}
/**
* Returns the value of this {@code Double} as a {@code byte} (by
* casting to a {@code byte}).
*
* @return the {@code double} value represented by this object
* converted to type {@code byte}
* @since JDK1.1
*/
public byte byteValue() {
return (byte)value;
}
/**
* Returns the value of this {@code Double} as a
* {@code short} (by casting to a {@code short}).
*
* @return the {@code double} value represented by this object
* converted to type {@code short}
* @since JDK1.1
*/
public short shortValue() {
return (short)value;
}
/**
* Returns the value of this {@code Double} as an
* {@code int} (by casting to type {@code int}).
*
* @return the {@code double} value represented by this object
* converted to type {@code int}
*/
public int intValue() {
return (int)value;
}
/**
* Returns the value of this {@code Double} as a
* {@code long} (by casting to type {@code long}).
*
* @return the {@code double} value represented by this object
* converted to type {@code long}
*/
public long longValue() {
return (long)value;
}
/**
* Returns the {@code float} value of this
* {@code Double} object.
*
* @return the {@code double} value represented by this object
* converted to type {@code float}
* @since JDK1.0
*/
public float floatValue() {
return (float)value;
}
/**
* Returns the {@code double} value of this
* {@code Double} object.
*
* @return the {@code double} value represented by this object
*/
public double doubleValue() {
return (double)value;
}
/**
* Returns a hash code for this {@code Double} object. The
* result is the exclusive OR of the two halves of the
* {@code long} integer bit representation, exactly as
* produced by the method {@link #doubleToLongBits(double)}, of
* the primitive {@code double} value represented by this
* {@code Double} object. That is, the hash code is the value
* of the expression:
*
* <blockquote>
* {@code (int)(v^(v>>>32))}
* </blockquote>
*
* where {@code v} is defined by:
*
* <blockquote>
* {@code long v = Double.doubleToLongBits(this.doubleValue());}
* </blockquote>
*
* @return a {@code hash code} value for this object.
*/
public int hashCode() {
long bits = doubleToLongBits(value);
return (int)(bits ^ (bits >>> 32));
}
/**
* Compares this object against the specified object. The result
* is {@code true} if and only if the argument is not
* {@code null} and is a {@code Double} object that
* represents a {@code double} that has the same value as the
* {@code double} represented by this object. For this
* purpose, two {@code double} values are considered to be
* the same if and only if the method {@link
* #doubleToLongBits(double)} returns the identical
* {@code long} value when applied to each.
*
* <p>Note that in most cases, for two instances of class
* {@code Double}, {@code d1} and {@code d2}, the
* value of {@code d1.equals(d2)} is {@code true} if and
* only if
*
* <blockquote>
* {@code d1.doubleValue() == d2.doubleValue()}
* </blockquote>
*
* <p>also has the value {@code true}. However, there are two
* exceptions:
* <ul>
* <li>If {@code d1} and {@code d2} both represent
* {@code Double.NaN}, then the {@code equals} method
* returns {@code true}, even though
* {@code Double.NaN==Double.NaN} has the value
* {@code false}.
* <li>If {@code d1} represents {@code +0.0} while
* {@code d2} represents {@code -0.0}, or vice versa,
* the {@code equal} test has the value {@code false},
* even though {@code +0.0==-0.0} has the value {@code true}.
* </ul>
* This definition allows hash tables to operate properly.
* @param obj the object to compare with.
* @return {@code true} if the objects are the same;
* {@code false} otherwise.
* @see java.lang.Double#doubleToLongBits(double)
*/
public boolean equals(Object obj) {
return (obj instanceof Double)
&& (doubleToLongBits(((Double)obj).value) ==
doubleToLongBits(value));
}
/**
* Returns a representation of the specified floating-point value
* according to the IEEE 754 floating-point "double
* format" bit layout.
*
* <p>Bit 63 (the bit that is selected by the mask
* {@code 0x8000000000000000L}) represents the sign of the
* floating-point number. Bits
* 62-52 (the bits that are selected by the mask
* {@code 0x7ff0000000000000L}) represent the exponent. Bits 51-0
* (the bits that are selected by the mask
* {@code 0x000fffffffffffffL}) represent the significand
* (sometimes called the mantissa) of the floating-point number.
*
* <p>If the argument is positive infinity, the result is
* {@code 0x7ff0000000000000L}.
*
* <p>If the argument is negative infinity, the result is
* {@code 0xfff0000000000000L}.
*
* <p>If the argument is NaN, the result is
* {@code 0x7ff8000000000000L}.
*
* <p>In all cases, the result is a {@code long} integer that, when
* given to the {@link #longBitsToDouble(long)} method, will produce a
* floating-point value the same as the argument to
* {@code doubleToLongBits} (except all NaN values are
* collapsed to a single "canonical" NaN value).
*
* @param value a {@code double} precision floating-point number.
* @return the bits that represent the floating-point number.
*/
public static long doubleToLongBits(double value) {
long result = doubleToRawLongBits(value);
// Check for NaN based on values of bit fields, maximum
// exponent and nonzero significand.
if ( ((result & DoubleConsts.EXP_BIT_MASK) ==
DoubleConsts.EXP_BIT_MASK) &&
(result & DoubleConsts.SIGNIF_BIT_MASK) !!= 0L)
result = 0x7ff8000000000000L;
return result;
}
/**
* Returns a representation of the specified floating-point value
* according to the IEEE 754 floating-point "double
* format" bit layout, preserving Not-a-Number (NaN) values.
*
* <p>Bit 63 (the bit that is selected by the mask
* {@code 0x8000000000000000L}) represents the sign of the
* floating-point number. Bits
* 62-52 (the bits that are selected by the mask
* {@code 0x7ff0000000000000L}) represent the exponent. Bits 51-0
* (the bits that are selected by the mask
* {@code 0x000fffffffffffffL}) represent the significand
* (sometimes called the mantissa) of the floating-point number.
*
* <p>If the argument is positive infinity, the result is
* {@code 0x7ff0000000000000L}.
*
* <p>If the argument is negative infinity, the result is
* {@code 0xfff0000000000000L}.
*
* <p>If the argument is NaN, the result is the {@code long}
* integer representing the actual NaN value. Unlike the
* {@code doubleToLongBits} method,
* {@code doubleToRawLongBits} does not collapse all the bit
* patterns encoding a NaN to a single "canonical" NaN
* value.
*
* <p>In all cases, the result is a {@code long} integer that,
* when given to the {@link #longBitsToDouble(long)} method, will
* produce a floating-point value the same as the argument to
* {@code doubleToRawLongBits}.
*
* @param value a {@code double} precision floating-point number.
* @return the bits that represent the floating-point number.
* @since 1.3
*/
public static native long doubleToRawLongBits(double value);
/**
* Returns the {@code double} value corresponding to a given
* bit representation.
* The argument is considered to be a representation of a
* floating-point value according to the IEEE 754 floating-point
* "double format" bit layout.
*
* <p>If the argument is {@code 0x7ff0000000000000L}, the result
* is positive infinity.
*
* <p>If the argument is {@code 0xfff0000000000000L}, the result
* is negative infinity.
*
* <p>If the argument is any value in the range
* {@code 0x7ff0000000000001L} through
* {@code 0x7fffffffffffffffL} or in the range
* {@code 0xfff0000000000001L} through
* {@code 0xffffffffffffffffL}, the result is a NaN. No IEEE
* 754 floating-point operation provided by Java can distinguish
* between two NaN values of the same type with different bit
* patterns. Distinct values of NaN are only distinguishable by
* use of the {@code Double.doubleToRawLongBits} method.
*
* <p>In all other cases, let <i>s</i>, <i>e</i>, and <i>m</i> be three
* values that can be computed from the argument:
*
* <blockquote><pre>
* int s = ((bits >> 63) == 0) ? 1 : -1;
* int e = (int)((bits >> 52) & 0x7ffL);
* long m = (e == 0) ?
* (bits & 0xfffffffffffffL) << 1 :
* (bits & 0xfffffffffffffL) | 0x10000000000000L;
* </pre></blockquote>
*
* Then the floating-point result equals the value of the mathematical
* expression <i>s</i>·<i>m</i>·2<sup><i>e</i>-1075</sup>.
*
* <p>Note that this method may not be able to return a
* {@code double} NaN with exactly same bit pattern as the
* {@code long} argument. IEEE 754 distinguishes between two
* kinds of NaNs, quiet NaNs and <i>signaling NaNs</i>. The
* differences between the two kinds of NaN are generally not
* visible in Java. Arithmetic operations on signaling NaNs turn
* them into quiet NaNs with a different, but often similar, bit
* pattern. However, on some processors merely copying a
* signaling NaN also performs that conversion. In particular,
* copying a signaling NaN to return it to the calling method
* may perform this conversion. So {@code longBitsToDouble}
* may not be able to return a {@code double} with a
* signaling NaN bit pattern. Consequently, for some
* {@code long} values,
* {@code doubleToRawLongBits(longBitsToDouble(start))} may
* <i>not</i> equal {@code start}. Moreover, which
* particular bit patterns represent signaling NaNs is platform
* dependent; although all NaN bit patterns, quiet or signaling,
* must be in the NaN range identified above.
*
* @param bits any {@code long} integer.
* @return the {@code double} floating-point value with the same
* bit pattern.
*/
public static native double longBitsToDouble(long bits);
/**
* Compares two {@code Double} objects numerically. There
* are two ways in which comparisons performed by this method
* differ from those performed by the Java language numerical
* comparison operators ({@code <, <=, ==, >=, >})
* when applied to primitive {@code double} values:
* <ul><li>
* {@code Double.NaN} is considered by this method
* to be equal to itself and greater than all other
* {@code double} values (including
* {@code Double.POSITIVE_INFINITY}).
* <li>
* {@code 0.0d} is considered by this method to be greater
* than {@code -0.0d}.
* </ul>
* This ensures that the <i>natural ordering</i> of
* {@code Double} objects imposed by this method is <i>consistent
* with equals</i>.
*
* @param anotherDouble the {@code Double} to be compared.
* @return the value {@code 0} if {@code anotherDouble} is
* numerically equal to this {@code Double}; a value
* less than {@code 0} if this {@code Double}
* is numerically less than {@code anotherDouble};
* and a value greater than {@code 0} if this
* {@code Double} is numerically greater than
* {@code anotherDouble}.
*
* @since 1.2
*/
public int compareTo(Double anotherDouble) {
return Double.compare(value, anotherDouble.value);
}
/**
* Compares the two specified {@code double} values. The sign
* of the integer value returned is the same as that of the
* integer that would be returned by the call:
* <pre>
* new Double(d1).compareTo(new Double(d2))
* </pre>
*
* @param d1 the first {@code double} to compare
* @param d2 the second {@code double} to compare
* @return the value {@code 0} if {@code d1} is
* numerically equal to {@code d2}; a value less than
* {@code 0} if {@code d1} is numerically less than
* {@code d2}; and a value greater than {@code 0}
* if {@code d1} is numerically greater than
* {@code d2}.
* @since 1.4
*/
public static int compare(double d1, double d2) {
if (d1 < d2)
return -1; // Neither val is NaN, thisVal is smaller
if (d1 > d2)
return 1; // Neither val is NaN, thisVal is larger
long thisBits = Double.doubleToLongBits(d1);
long anotherBits = Double.doubleToLongBits(d2);
return (thisBits == anotherBits ? 0 : // Values are equal
(thisBits < anotherBits ? -1 : // (-0.0, 0.0) or (!!NaN, NaN)
1)); // (0.0, -0.0) or (NaN, !!NaN)
}
/** use serialVersionUID from JDK 1.0.2 for interoperability */
private static final long serialVersionUID = -9172774392245257468L;
}
'.
self assert: result isPetitFailure not.
"Created: / 15-03-2012 / 23:35:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_07
result := JavaParserII parse:'
/*
* Copyright 1996-2006 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/*
* (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
* (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved
*
* The original version of this source code and documentation is copyrighted
* and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These
* materials are provided under terms of a License Agreement between Taligent
* and Sun. This technology is protected by multiple US and International
* patents. This notice and attribution to Taligent may not be removed.
* Taligent is a registered trademark of Taligent, Inc.
*
*/
package java.text;
import java.io.InvalidObjectException;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Locale;
/**
* <code>MessageFormat</code> provides a means to produce concatenated
* messages in a language-neutral way. Use this to construct messages
* displayed for end users.
*
* <p>
* <code>MessageFormat</code> takes a set of objects, formats them, then
* inserts the formatted strings into the pattern at the appropriate places.
*
* <p>
* <strong>Note:</strong>
* <code>MessageFormat</code> differs from the other <code>Format</code>
* classes in that you create a <code>MessageFormat</code> object with one
* of its constructors (not with a <code>getInstance</code> style factory
* method). The factory methods aren''t necessary because <code>MessageFormat</code>
* itself doesn''t implement locale specific behavior. Any locale specific
* behavior is defined by the pattern that you provide as well as the
* subformats used for inserted arguments.
*
* <h4><a name="patterns">Patterns and Their Interpretation</a></h4>
*
* <code>MessageFormat</code> uses patterns of the following form:
* <blockquote><pre>
* <i>MessageFormatPattern:</i>
* <i>String</i>
* <i>MessageFormatPattern</i> <i>FormatElement</i> <i>String</i>
*
* <i>FormatElement:</i>
* { <i>ArgumentIndex</i> }
* { <i>ArgumentIndex</i> , <i>FormatType</i> }
* { <i>ArgumentIndex</i> , <i>FormatType</i> , <i>FormatStyle</i> }
*
* <i>FormatType: one of </i>
* number date time choice
*
* <i>FormatStyle:</i>
* short
* medium
* long
* full
* integer
* currency
* percent
* <i>SubformatPattern</i>
*
* <i>String:</i>
* <i>StringPart<sub>opt</sub></i>
* <i>String</i> <i>StringPart</i>
*
* <i>StringPart:</i>
* ''''
* '' <i>QuotedString</i> ''
* <i>UnquotedString</i>
*
* <i>SubformatPattern:</i>
* <i>SubformatPatternPart<sub>opt</sub></i>
* <i>SubformatPattern</i> <i>SubformatPatternPart</i>
*
* <i>SubFormatPatternPart:</i>
* '' <i>QuotedPattern</i> ''
* <i>UnquotedPattern</i>
* </pre></blockquote>
*
* <p>
* Within a <i>String</i>, <code>"''''"</code> represents a single
* quote. A <i>QuotedString</i> can contain arbitrary characters
* except single quotes; the surrounding single quotes are removed.
* An <i>UnquotedString</i> can contain arbitrary characters
* except single quotes and left curly brackets. Thus, a string that
* should result in the formatted message "''{0}''" can be written as
* <code>"''''''{''0}''''"</code> or <code>"''''''{0}''''''"</code>.
* <p>
* Within a <i>SubformatPattern</i>, different rules apply.
* A <i>QuotedPattern</i> can contain arbitrary characters
* except single quotes; but the surrounding single quotes are
* <strong>not</strong> removed, so they may be interpreted by the
* subformat. For example, <code>"{1,number,$''#'',##}"</code> will
* produce a number format with the pound-sign quoted, with a result
* such as: "$#31,45".
* An <i>UnquotedPattern</i> can contain arbitrary characters
* except single quotes, but curly braces within it must be balanced.
* For example, <code>"ab {0} de"</code> and <code>"ab ''}'' de"</code>
* are valid subformat patterns, but <code>"ab {0''}'' de"</code> and
* <code>"ab } de"</code> are not.
* <p>
* <dl><dt><b>Warning:</b><dd>The rules for using quotes within message
* format patterns unfortunately have shown to be somewhat confusing.
* In particular, it isn''t always obvious to localizers whether single
* quotes need to be doubled or not. Make sure to inform localizers about
* the rules, and tell them (for example, by using comments in resource
* bundle source files) which strings will be processed by MessageFormat.
* Note that localizers may need to use single quotes in translated
* strings where the original version doesn''t have them.
* </dl>
* <p>
* The <i>ArgumentIndex</i> value is a non-negative integer written
* using the digits ''0'' through ''9'', and represents an index into the
* <code>arguments</code> array passed to the <code>format</code> methods
* or the result array returned by the <code>parse</code> methods.
* <p>
* The <i>FormatType</i> and <i>FormatStyle</i> values are used to create
* a <code>Format</code> instance for the format element. The following
* table shows how the values map to Format instances. Combinations not
* shown in the table are illegal. A <i>SubformatPattern</i> must
* be a valid pattern string for the Format subclass used.
* <p>
* <table border=1 summary="Shows how FormatType and FormatStyle values map to Format instances">
* <tr>
* <th id="ft">Format Type
* <th id="fs">Format Style
* <th id="sc">Subformat Created
* <tr>
* <td headers="ft"><i>(none)</i>
* <td headers="fs"><i>(none)</i>
* <td headers="sc"><code>null</code>
* <tr>
* <td headers="ft" rowspan=5><code>number</code>
* <td headers="fs"><i>(none)</i>
* <td headers="sc"><code>NumberFormat.getInstance(getLocale())</code>
* <tr>
* <td headers="fs"><code>integer</code>
* <td headers="sc"><code>NumberFormat.getIntegerInstance(getLocale())</code>
* <tr>
* <td headers="fs"><code>currency</code>
* <td headers="sc"><code>NumberFormat.getCurrencyInstance(getLocale())</code>
* <tr>
* <td headers="fs"><code>percent</code>
* <td headers="sc"><code>NumberFormat.getPercentInstance(getLocale())</code>
* <tr>
* <td headers="fs"><i>SubformatPattern</i>
* <td headers="sc"><code>new DecimalFormat(subformatPattern, DecimalFormatSymbols.getInstance(getLocale()))</code>
* <tr>
* <td headers="ft" rowspan=6><code>date</code>
* <td headers="fs"><i>(none)</i>
* <td headers="sc"><code>DateFormat.getDateInstance(DateFormat.DEFAULT, getLocale())</code>
* <tr>
* <td headers="fs"><code>short</code>
* <td headers="sc"><code>DateFormat.getDateInstance(DateFormat.SHORT, getLocale())</code>
* <tr>
* <td headers="fs"><code>medium</code>
* <td headers="sc"><code>DateFormat.getDateInstance(DateFormat.DEFAULT, getLocale())</code>
* <tr>
* <td headers="fs"><code>long</code>
* <td headers="sc"><code>DateFormat.getDateInstance(DateFormat.LONG, getLocale())</code>
* <tr>
* <td headers="fs"><code>full</code>
* <td headers="sc"><code>DateFormat.getDateInstance(DateFormat.FULL, getLocale())</code>
* <tr>
* <td headers="fs"><i>SubformatPattern</i>
* <td headers="sc"><code>new SimpleDateFormat(subformatPattern, getLocale())</code>
* <tr>
* <td headers="ft" rowspan=6><code>time</code>
* <td headers="fs"><i>(none)</i>
* <td headers="sc"><code>DateFormat.getTimeInstance(DateFormat.DEFAULT, getLocale())</code>
* <tr>
* <td headers="fs"><code>short</code>
* <td headers="sc"><code>DateFormat.getTimeInstance(DateFormat.SHORT, getLocale())</code>
* <tr>
* <td headers="fs"><code>medium</code>
* <td headers="sc"><code>DateFormat.getTimeInstance(DateFormat.DEFAULT, getLocale())</code>
* <tr>
* <td headers="fs"><code>long</code>
* <td headers="sc"><code>DateFormat.getTimeInstance(DateFormat.LONG, getLocale())</code>
* <tr>
* <td headers="fs"><code>full</code>
* <td headers="sc"><code>DateFormat.getTimeInstance(DateFormat.FULL, getLocale())</code>
* <tr>
* <td headers="fs"><i>SubformatPattern</i>
* <td headers="sc"><code>new SimpleDateFormat(subformatPattern, getLocale())</code>
* <tr>
* <td headers="ft"><code>choice</code>
* <td headers="fs"><i>SubformatPattern</i>
* <td headers="sc"><code>new ChoiceFormat(subformatPattern)</code>
* </table>
* <p>
*
* <h4>Usage Information</h4>
*
* <p>
* Here are some examples of usage.
* In real internationalized programs, the message format pattern and other
* static strings will, of course, be obtained from resource bundles.
* Other parameters will be dynamically determined at runtime.
* <p>
* The first example uses the static method <code>MessageFormat.format</code>,
* which internally creates a <code>MessageFormat</code> for one-time use:
* <blockquote><pre>
* int planet = 7;
* String event = "a disturbance in the Force";
*
* String result = MessageFormat.format(
* "At {1,time} on {1,date}, there was {2} on planet {0,number,integer}.",
* planet, new Date(), event);
* </pre></blockquote>
* The output is:
* <blockquote><pre>
* At 12:30 PM on Jul 3, 2053, there was a disturbance in the Force on planet 7.
* </pre></blockquote>
*
* <p>
* The following example creates a <code>MessageFormat</code> instance that
* can be used repeatedly:
* <blockquote><pre>
* int fileCount = 1273;
* String diskName = "MyDisk";
* Object[] testArgs = {new Long(fileCount), diskName};
*
* MessageFormat form = new MessageFormat(
* "The disk \"{1}\" contains {0} file(s).");
*
* System.out.println(form.format(testArgs));
* </pre></blockquote>
* The output with different values for <code>fileCount</code>:
* <blockquote><pre>
* The disk "MyDisk" contains 0 file(s).
* The disk "MyDisk" contains 1 file(s).
* The disk "MyDisk" contains 1,273 file(s).
* </pre></blockquote>
*
* <p>
* For more sophisticated patterns, you can use a <code>ChoiceFormat</code>
* to produce correct forms for singular and plural:
* <blockquote><pre>
* MessageFormat form = new MessageFormat("The disk \"{1}\" contains {0}.");
* double[] filelimits = {0,1,2};
* String[] filepart = {"no files","one file","{0,number} files"};
* ChoiceFormat fileform = new ChoiceFormat(filelimits, filepart);
* form.setFormatByArgumentIndex(0, fileform);
*
* int fileCount = 1273;
* String diskName = "MyDisk";
* Object[] testArgs = {new Long(fileCount), diskName};
*
* System.out.println(form.format(testArgs));
* </pre></blockquote>
* The output with different values for <code>fileCount</code>:
* <blockquote><pre>
* The disk "MyDisk" contains no files.
* The disk "MyDisk" contains one file.
* The disk "MyDisk" contains 1,273 files.
* </pre></blockquote>
*
* <p>
* You can create the <code>ChoiceFormat</code> programmatically, as in the
* above example, or by using a pattern. See {@link ChoiceFormat}
* for more information.
* <blockquote><pre>
* form.applyPattern(
* "There {0,choice,0#are no files|1#is one file|1<are {0,number,integer} files}.");
* </pre></blockquote>
*
* <p>
* <strong>Note:</strong> As we see above, the string produced
* by a <code>ChoiceFormat</code> in <code>MessageFormat</code> is treated as special;
* occurrences of ''{'' are used to indicate subformats, and cause recursion.
* If you create both a <code>MessageFormat</code> and <code>ChoiceFormat</code>
* programmatically (instead of using the string patterns), then be careful not to
* produce a format that recurses on itself, which will cause an infinite loop.
* <p>
* When a single argument is parsed more than once in the string, the last match
* will be the final result of the parsing. For example,
* <blockquote><pre>
* MessageFormat mf = new MessageFormat("{0,number,#.##}, {0,number,#.#}");
* Object[] objs = {new Double(3.1415)};
* String result = mf.format( objs );
* // result now equals "3.14, 3.1"
* objs = null;
* objs = mf.parse(result, new ParsePosition(0));
* // objs now equals {new Double(3.1)}
* </pre></blockquote>
*
* <p>
* Likewise, parsing with a MessageFormat object using patterns containing
* multiple occurrences of the same argument would return the last match. For
* example,
* <blockquote><pre>
* MessageFormat mf = new MessageFormat("{0}, {0}, {0}");
* String forParsing = "x, y, z";
* Object[] objs = mf.parse(forParsing, new ParsePosition(0));
* // result now equals {new String("z")}
* </pre></blockquote>
*
* <h4><a name="synchronization">Synchronization</a></h4>
*
* <p>
* Message formats are not synchronized.
* It is recommended to create separate format instances for each thread.
* If multiple threads access a format concurrently, it must be synchronized
* externally.
*
* @see java.util.Locale
* @see Format
* @see NumberFormat
* @see DecimalFormat
* @see ChoiceFormat
* @author Mark Davis
*/
public class MessageFormat extends Format {
private static final long serialVersionUID = 6479157306784022952L;
/**
* Constructs a MessageFormat for the default locale and the
* specified pattern.
* The constructor first sets the locale, then parses the pattern and
* creates a list of subformats for the format elements contained in it.
* Patterns and their interpretation are specified in the
* <a href="#patterns">class description</a>.
*
* @param pattern the pattern for this message format
* @exception IllegalArgumentException if the pattern is invalid
*/
public MessageFormat(String pattern) {
this.locale = Locale.getDefault();
applyPattern(pattern);
}
/**
* Constructs a MessageFormat for the specified locale and
* pattern.
* The constructor first sets the locale, then parses the pattern and
* creates a list of subformats for the format elements contained in it.
* Patterns and their interpretation are specified in the
* <a href="#patterns">class description</a>.
*
* @param pattern the pattern for this message format
* @param locale the locale for this message format
* @exception IllegalArgumentException if the pattern is invalid
* @since 1.4
*/
public MessageFormat(String pattern, Locale locale) {
this.locale = locale;
applyPattern(pattern);
}
/**
* Sets the locale to be used when creating or comparing subformats.
* This affects subsequent calls
* <ul>
* <li>to the {@link #applyPattern applyPattern}
* and {@link #toPattern toPattern} methods if format elements specify
* a format type and therefore have the subformats created in the
* <code>applyPattern</code> method, as well as
* <li>to the <code>format</code> and
* {@link #formatToCharacterIterator formatToCharacterIterator} methods
* if format elements do not specify a format type and therefore have
* the subformats created in the formatting methods.
* </ul>
* Subformats that have already been created are not affected.
*
* @param locale the locale to be used when creating or comparing subformats
*/
public void setLocale(Locale locale) {
this.locale = locale;
}
/**
* Gets the locale that''s used when creating or comparing subformats.
*
* @return the locale used when creating or comparing subformats
*/
public Locale getLocale() {
return locale;
}
/**
* Sets the pattern used by this message format.
* The method parses the pattern and creates a list of subformats
* for the format elements contained in it.
* Patterns and their interpretation are specified in the
* <a href="#patterns">class description</a>.
*
* @param pattern the pattern for this message format
* @exception IllegalArgumentException if the pattern is invalid
*/
public void applyPattern(String pattern) {
StringBuffer[] segments = new StringBuffer[4];
for (int i = 0; i < segments.length; ++i) {
segments[i] = new StringBuffer();
}
int part = 0;
int formatNumber = 0;
boolean inQuote = false;
int braceStack = 0;
maxOffset = -1;
for (int i = 0; i < pattern.length(); ++i) {
char ch = pattern.charAt(i);
if (part == 0) {
if (ch == ''\'''') {
if (i + 1 < pattern.length()
&& pattern.charAt(i+1) == ''\'''') {
segments[part].append(ch); // handle doubles
++i;
} else {
inQuote = !!inQuote;
}
} else if (ch == ''{'' && !!inQuote) {
part = 1;
} else {
segments[part].append(ch);
}
} else if (inQuote) { // just copy quotes in parts
segments[part].append(ch);
if (ch == ''\'''') {
inQuote = false;
}
} else {
switch (ch) {
case '','':
if (part < 3)
part += 1;
else
segments[part].append(ch);
break;
case ''{'':
++braceStack;
segments[part].append(ch);
break;
case ''}'':
if (braceStack == 0) {
part = 0;
makeFormat(i, formatNumber, segments);
formatNumber++;
} else {
--braceStack;
segments[part].append(ch);
}
break;
case ''\'''':
inQuote = true;
// fall through, so we keep quotes in other parts
default:
segments[part].append(ch);
break;
}
}
}
if (braceStack == 0 && part !!= 0) {
maxOffset = -1;
throw new IllegalArgumentException("Unmatched braces in the pattern.");
}
this.pattern = segments[0].toString();
}
/**
* Returns a pattern representing the current state of the message format.
* The string is constructed from internal information and therefore
* does not necessarily equal the previously applied pattern.
*
* @return a pattern representing the current state of the message format
*/
public String toPattern() {
// later, make this more extensible
int lastOffset = 0;
StringBuffer result = new StringBuffer();
for (int i = 0; i <= maxOffset; ++i) {
copyAndFixQuotes(pattern, lastOffset, offsets[i],result);
lastOffset = offsets[i];
result.append(''{'');
result.append(argumentNumbers[i]);
if (formats[i] == null) {
// do nothing, string format
} else if (formats[i] instanceof DecimalFormat) {
if (formats[i].equals(NumberFormat.getInstance(locale))) {
result.append(",number");
} else if (formats[i].equals(NumberFormat.getCurrencyInstance(locale))) {
result.append(",number,currency");
} else if (formats[i].equals(NumberFormat.getPercentInstance(locale))) {
result.append(",number,percent");
} else if (formats[i].equals(NumberFormat.getIntegerInstance(locale))) {
result.append(",number,integer");
} else {
result.append(",number," +
((DecimalFormat)formats[i]).toPattern());
}
} else if (formats[i] instanceof SimpleDateFormat) {
if (formats[i].equals(DateFormat.getDateInstance(
DateFormat.DEFAULT,locale))) {
result.append(",date");
} else if (formats[i].equals(DateFormat.getDateInstance(
DateFormat.SHORT,locale))) {
result.append(",date,short");
} else if (formats[i].equals(DateFormat.getDateInstance(
DateFormat.DEFAULT,locale))) {
result.append(",date,medium");
} else if (formats[i].equals(DateFormat.getDateInstance(
DateFormat.LONG,locale))) {
result.append(",date,long");
} else if (formats[i].equals(DateFormat.getDateInstance(
DateFormat.FULL,locale))) {
result.append(",date,full");
} else if (formats[i].equals(DateFormat.getTimeInstance(
DateFormat.DEFAULT,locale))) {
result.append(",time");
} else if (formats[i].equals(DateFormat.getTimeInstance(
DateFormat.SHORT,locale))) {
result.append(",time,short");
} else if (formats[i].equals(DateFormat.getTimeInstance(
DateFormat.DEFAULT,locale))) {
result.append(",time,medium");
} else if (formats[i].equals(DateFormat.getTimeInstance(
DateFormat.LONG,locale))) {
result.append(",time,long");
} else if (formats[i].equals(DateFormat.getTimeInstance(
DateFormat.FULL,locale))) {
result.append(",time,full");
} else {
result.append(",date,"
+ ((SimpleDateFormat)formats[i]).toPattern());
}
} else if (formats[i] instanceof ChoiceFormat) {
result.append(",choice,"
+ ((ChoiceFormat)formats[i]).toPattern());
} else {
//result.append(", unknown");
}
result.append(''}'');
}
copyAndFixQuotes(pattern, lastOffset, pattern.length(), result);
return result.toString();
}
/**
* Sets the formats to use for the values passed into
* <code>format</code> methods or returned from <code>parse</code>
* methods. The indices of elements in <code>newFormats</code>
* correspond to the argument indices used in the previously set
* pattern string.
* The order of formats in <code>newFormats</code> thus corresponds to
* the order of elements in the <code>arguments</code> array passed
* to the <code>format</code> methods or the result array returned
* by the <code>parse</code> methods.
* <p>
* If an argument index is used for more than one format element
* in the pattern string, then the corresponding new format is used
* for all such format elements. If an argument index is not used
* for any format element in the pattern string, then the
* corresponding new format is ignored. If fewer formats are provided
* than needed, then only the formats for argument indices less
* than <code>newFormats.length</code> are replaced.
*
* @param newFormats the new formats to use
* @exception NullPointerException if <code>newFormats</code> is null
* @since 1.4
*/
public void setFormatsByArgumentIndex(Format[] newFormats) {
for (int i = 0; i <= maxOffset; i++) {
int j = argumentNumbers[i];
if (j < newFormats.length) {
formats[i] = newFormats[j];
}
}
}
/**
* Sets the formats to use for the format elements in the
* previously set pattern string.
* The order of formats in <code>newFormats</code> corresponds to
* the order of format elements in the pattern string.
* <p>
* If more formats are provided than needed by the pattern string,
* the remaining ones are ignored. If fewer formats are provided
* than needed, then only the first <code>newFormats.length</code>
* formats are replaced.
* <p>
* Since the order of format elements in a pattern string often
* changes during localization, it is generally better to use the
* {@link #setFormatsByArgumentIndex setFormatsByArgumentIndex}
* method, which assumes an order of formats corresponding to the
* order of elements in the <code>arguments</code> array passed to
* the <code>format</code> methods or the result array returned by
* the <code>parse</code> methods.
*
* @param newFormats the new formats to use
* @exception NullPointerException if <code>newFormats</code> is null
*/
public void setFormats(Format[] newFormats) {
int runsToCopy = newFormats.length;
if (runsToCopy > maxOffset + 1) {
runsToCopy = maxOffset + 1;
}
for (int i = 0; i < runsToCopy; i++) {
formats[i] = newFormats[i];
}
}
/**
* Sets the format to use for the format elements within the
* previously set pattern string that use the given argument
* index.
* The argument index is part of the format element definition and
* represents an index into the <code>arguments</code> array passed
* to the <code>format</code> methods or the result array returned
* by the <code>parse</code> methods.
* <p>
* If the argument index is used for more than one format element
* in the pattern string, then the new format is used for all such
* format elements. If the argument index is not used for any format
* element in the pattern string, then the new format is ignored.
*
* @param argumentIndex the argument index for which to use the new format
* @param newFormat the new format to use
* @since 1.4
*/
public void setFormatByArgumentIndex(int argumentIndex, Format newFormat) {
for (int j = 0; j <= maxOffset; j++) {
if (argumentNumbers[j] == argumentIndex) {
formats[j] = newFormat;
}
}
}
/**
* Sets the format to use for the format element with the given
* format element index within the previously set pattern string.
* The format element index is the zero-based number of the format
* element counting from the start of the pattern string.
* <p>
* Since the order of format elements in a pattern string often
* changes during localization, it is generally better to use the
* {@link #setFormatByArgumentIndex setFormatByArgumentIndex}
* method, which accesses format elements based on the argument
* index they specify.
*
* @param formatElementIndex the index of a format element within the pattern
* @param newFormat the format to use for the specified format element
* @exception ArrayIndexOutOfBoundsException if formatElementIndex is equal to or
* larger than the number of format elements in the pattern string
*/
public void setFormat(int formatElementIndex, Format newFormat) {
formats[formatElementIndex] = newFormat;
}
/**
* Gets the formats used for the values passed into
* <code>format</code> methods or returned from <code>parse</code>
* methods. The indices of elements in the returned array
* correspond to the argument indices used in the previously set
* pattern string.
* The order of formats in the returned array thus corresponds to
* the order of elements in the <code>arguments</code> array passed
* to the <code>format</code> methods or the result array returned
* by the <code>parse</code> methods.
* <p>
* If an argument index is used for more than one format element
* in the pattern string, then the format used for the last such
* format element is returned in the array. If an argument index
* is not used for any format element in the pattern string, then
* null is returned in the array.
*
* @return the formats used for the arguments within the pattern
* @since 1.4
*/
public Format[] getFormatsByArgumentIndex() {
int maximumArgumentNumber = -1;
for (int i = 0; i <= maxOffset; i++) {
if (argumentNumbers[i] > maximumArgumentNumber) {
maximumArgumentNumber = argumentNumbers[i];
}
}
Format[] resultArray = new Format[maximumArgumentNumber + 1];
for (int i = 0; i <= maxOffset; i++) {
resultArray[argumentNumbers[i]] = formats[i];
}
return resultArray;
}
/**
* Gets the formats used for the format elements in the
* previously set pattern string.
* The order of formats in the returned array corresponds to
* the order of format elements in the pattern string.
* <p>
* Since the order of format elements in a pattern string often
* changes during localization, it''s generally better to use the
* {@link #getFormatsByArgumentIndex getFormatsByArgumentIndex}
* method, which assumes an order of formats corresponding to the
* order of elements in the <code>arguments</code> array passed to
* the <code>format</code> methods or the result array returned by
* the <code>parse</code> methods.
*
* @return the formats used for the format elements in the pattern
*/
public Format[] getFormats() {
Format[] resultArray = new Format[maxOffset + 1];
System.arraycopy(formats, 0, resultArray, 0, maxOffset + 1);
return resultArray;
}
/**
* Formats an array of objects and appends the <code>MessageFormat</code>''s
* pattern, with format elements replaced by the formatted objects, to the
* provided <code>StringBuffer</code>.
* <p>
* The text substituted for the individual format elements is derived from
* the current subformat of the format element and the
* <code>arguments</code> element at the format element''s argument index
* as indicated by the first matching line of the following table. An
* argument is <i>unavailable</i> if <code>arguments</code> is
* <code>null</code> or has fewer than argumentIndex+1 elements.
* <p>
* <table border=1 summary="Examples of subformat,argument,and formatted text">
* <tr>
* <th>Subformat
* <th>Argument
* <th>Formatted Text
* <tr>
* <td><i>any</i>
* <td><i>unavailable</i>
* <td><code>"{" + argumentIndex + "}"</code>
* <tr>
* <td><i>any</i>
* <td><code>null</code>
* <td><code>"null"</code>
* <tr>
* <td><code>instanceof ChoiceFormat</code>
* <td><i>any</i>
* <td><code>subformat.format(argument).indexOf(''{'') >= 0 ?<br>
* (new MessageFormat(subformat.format(argument), getLocale())).format(argument) :
* subformat.format(argument)</code>
* <tr>
* <td><code>!!= null</code>
* <td><i>any</i>
* <td><code>subformat.format(argument)</code>
* <tr>
* <td><code>null</code>
* <td><code>instanceof Number</code>
* <td><code>NumberFormat.getInstance(getLocale()).format(argument)</code>
* <tr>
* <td><code>null</code>
* <td><code>instanceof Date</code>
* <td><code>DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, getLocale()).format(argument)</code>
* <tr>
* <td><code>null</code>
* <td><code>instanceof String</code>
* <td><code>argument</code>
* <tr>
* <td><code>null</code>
* <td><i>any</i>
* <td><code>argument.toString()</code>
* </table>
* <p>
* If <code>pos</code> is non-null, and refers to
* <code>Field.ARGUMENT</code>, the location of the first formatted
* string will be returned.
*
* @param arguments an array of objects to be formatted and substituted.
* @param result where text is appended.
* @param pos On input: an alignment field, if desired.
* On output: the offsets of the alignment field.
* @exception IllegalArgumentException if an argument in the
* <code>arguments</code> array is not of the type
* expected by the format element(s) that use it.
*/
public final StringBuffer format(Object[] arguments, StringBuffer result,
FieldPosition pos)
{
return subformat(arguments, result, pos, null);
}
/**
* Creates a MessageFormat with the given pattern and uses it
* to format the given arguments. This is equivalent to
* <blockquote>
* <code>(new {@link #MessageFormat(String) MessageFormat}(pattern)).{@link #format(java.lang.Object[], java.lang.StringBuffer, java.text.FieldPosition) format}(arguments, new StringBuffer(), null).toString()</code>
* </blockquote>
*
* @exception IllegalArgumentException if the pattern is invalid,
* or if an argument in the <code>arguments</code> array
* is not of the type expected by the format element(s)
* that use it.
*/
public static String format(String pattern, Object ... arguments) {
MessageFormat temp = new MessageFormat(pattern);
return temp.format(arguments);
}
// Overrides
/**
* Formats an array of objects and appends the <code>MessageFormat</code>''s
* pattern, with format elements replaced by the formatted objects, to the
* provided <code>StringBuffer</code>.
* This is equivalent to
* <blockquote>
* <code>{@link #format(java.lang.Object[], java.lang.StringBuffer, java.text.FieldPosition) format}((Object[]) arguments, result, pos)</code>
* </blockquote>
*
* @param arguments an array of objects to be formatted and substituted.
* @param result where text is appended.
* @param pos On input: an alignment field, if desired.
* On output: the offsets of the alignment field.
* @exception IllegalArgumentException if an argument in the
* <code>arguments</code> array is not of the type
* expected by the format element(s) that use it.
*/
public final StringBuffer format(Object arguments, StringBuffer result,
FieldPosition pos)
{
return subformat((Object[]) arguments, result, pos, null);
}
/**
* Formats an array of objects and inserts them into the
* <code>MessageFormat</code>''s pattern, producing an
* <code>AttributedCharacterIterator</code>.
* You can use the returned <code>AttributedCharacterIterator</code>
* to build the resulting String, as well as to determine information
* about the resulting String.
* <p>
* The text of the returned <code>AttributedCharacterIterator</code> is
* the same that would be returned by
* <blockquote>
* <code>{@link #format(java.lang.Object[], java.lang.StringBuffer, java.text.FieldPosition) format}(arguments, new StringBuffer(), null).toString()</code>
* </blockquote>
* <p>
* In addition, the <code>AttributedCharacterIterator</code> contains at
* least attributes indicating where text was generated from an
* argument in the <code>arguments</code> array. The keys of these attributes are of
* type <code>MessageFormat.Field</code>, their values are
* <code>Integer</code> objects indicating the index in the <code>arguments</code>
* array of the argument from which the text was generated.
* <p>
* The attributes/value from the underlying <code>Format</code>
* instances that <code>MessageFormat</code> uses will also be
* placed in the resulting <code>AttributedCharacterIterator</code>.
* This allows you to not only find where an argument is placed in the
* resulting String, but also which fields it contains in turn.
*
* @param arguments an array of objects to be formatted and substituted.
* @return AttributedCharacterIterator describing the formatted value.
* @exception NullPointerException if <code>arguments</code> is null.
* @exception IllegalArgumentException if an argument in the
* <code>arguments</code> array is not of the type
* expected by the format element(s) that use it.
* @since 1.4
*/
public AttributedCharacterIterator formatToCharacterIterator(Object arguments) {
StringBuffer result = new StringBuffer();
ArrayList iterators = new ArrayList();
if (arguments == null) {
throw new NullPointerException(
"formatToCharacterIterator must be passed non-null object");
}
subformat((Object[]) arguments, result, null, iterators);
if (iterators.size() == 0) {
return createAttributedCharacterIterator("");
}
return createAttributedCharacterIterator(
(AttributedCharacterIterator[])iterators.toArray(
new AttributedCharacterIterator[iterators.size()]));
}
/**
* Parses the string.
*
* <p>Caveats: The parse may fail in a number of circumstances.
* For example:
* <ul>
* <li>If one of the arguments does not occur in the pattern.
* <li>If the format of an argument loses information, such as
* with a choice format where a large number formats to "many".
* <li>Does not yet handle recursion (where
* the substituted strings contain {n} references.)
* <li>Will not always find a match (or the correct match)
* if some part of the parse is ambiguous.
* For example, if the pattern "{1},{2}" is used with the
* string arguments {"a,b", "c"}, it will format as "a,b,c".
* When the result is parsed, it will return {"a", "b,c"}.
* <li>If a single argument is parsed more than once in the string,
* then the later parse wins.
* </ul>
* When the parse fails, use ParsePosition.getErrorIndex() to find out
* where in the string the parsing failed. The returned error
* index is the starting offset of the sub-patterns that the string
* is comparing with. For example, if the parsing string "AAA {0} BBB"
* is comparing against the pattern "AAD {0} BBB", the error index is
* 0. When an error occurs, the call to this method will return null.
* If the source is null, return an empty array.
*/
public Object[] parse(String source, ParsePosition pos) {
if (source == null) {
Object[] empty = {};
return empty;
}
int maximumArgumentNumber = -1;
for (int i = 0; i <= maxOffset; i++) {
if (argumentNumbers[i] > maximumArgumentNumber) {
maximumArgumentNumber = argumentNumbers[i];
}
}
Object[] resultArray = new Object[maximumArgumentNumber + 1];
int patternOffset = 0;
int sourceOffset = pos.index;
ParsePosition tempStatus = new ParsePosition(0);
for (int i = 0; i <= maxOffset; ++i) {
// match up to format
int len = offsets[i] - patternOffset;
if (len == 0 || pattern.regionMatches(patternOffset,
source, sourceOffset, len)) {
sourceOffset += len;
patternOffset += len;
} else {
pos.errorIndex = sourceOffset;
return null; // leave index as is to signal error
}
// now use format
if (formats[i] == null) { // string format
// if at end, use longest possible match
// otherwise uses first match to intervening string
// does NOT recursively try all possibilities
int tempLength = (i !!= maxOffset) ? offsets[i+1] : pattern.length();
int next;
if (patternOffset >= tempLength) {
next = source.length();
}else{
next = source.indexOf( pattern.substring(patternOffset,tempLength), sourceOffset);
}
if (next < 0) {
pos.errorIndex = sourceOffset;
return null; // leave index as is to signal error
} else {
String strValue= source.substring(sourceOffset,next);
if (!!strValue.equals("{"+argumentNumbers[i]+"}"))
resultArray[argumentNumbers[i]]
= source.substring(sourceOffset,next);
sourceOffset = next;
}
} else {
tempStatus.index = sourceOffset;
resultArray[argumentNumbers[i]]
= formats[i].parseObject(source,tempStatus);
if (tempStatus.index == sourceOffset) {
pos.errorIndex = sourceOffset;
return null; // leave index as is to signal error
}
sourceOffset = tempStatus.index; // update
}
}
int len = pattern.length() - patternOffset;
if (len == 0 || pattern.regionMatches(patternOffset,
source, sourceOffset, len)) {
pos.index = sourceOffset + len;
} else {
pos.errorIndex = sourceOffset;
return null; // leave index as is to signal error
}
return resultArray;
}
/**
* Parses text from the beginning of the given string to produce an object
* array.
* The method may not use the entire text of the given string.
* <p>
* See the {@link #parse(String, ParsePosition)} method for more information
* on message parsing.
*
* @param source A <code>String</code> whose beginning should be parsed.
* @return An <code>Object</code> array parsed from the string.
* @exception ParseException if the beginning of the specified string
* cannot be parsed.
*/
public Object[] parse(String source) throws ParseException {
ParsePosition pos = new ParsePosition(0);
Object[] result = parse(source, pos);
if (pos.index == 0) // unchanged, returned object is null
throw new ParseException("MessageFormat parse error!!", pos.errorIndex);
return result;
}
/**
* Parses text from a string to produce an object array.
* <p>
* The method attempts to parse text starting at the index given by
* <code>pos</code>.
* If parsing succeeds, then the index of <code>pos</code> is updated
* to the index after the last character used (parsing does not necessarily
* use all characters up to the end of the string), and the parsed
* object array is returned. The updated <code>pos</code> can be used to
* indicate the starting point for the next call to this method.
* If an error occurs, then the index of <code>pos</code> is not
* changed, the error index of <code>pos</code> is set to the index of
* the character where the error occurred, and null is returned.
* <p>
* See the {@link #parse(String, ParsePosition)} method for more information
* on message parsing.
*
* @param source A <code>String</code>, part of which should be parsed.
* @param pos A <code>ParsePosition</code> object with index and error
* index information as described above.
* @return An <code>Object</code> array parsed from the string. In case of
* error, returns null.
* @exception NullPointerException if <code>pos</code> is null.
*/
public Object parseObject(String source, ParsePosition pos) {
return parse(source, pos);
}
/**
* Creates and returns a copy of this object.
*
* @return a clone of this instance.
*/
public Object clone() {
MessageFormat other = (MessageFormat) super.clone();
// clone arrays. Can''t do with utility because of bug in Cloneable
other.formats = (Format[]) formats.clone(); // shallow clone
for (int i = 0; i < formats.length; ++i) {
if (formats[i] !!= null)
other.formats[i] = (Format)formats[i].clone();
}
// for primitives or immutables, shallow clone is enough
other.offsets = (int[]) offsets.clone();
other.argumentNumbers = (int[]) argumentNumbers.clone();
return other;
}
/**
* Equality comparison between two message format objects
*/
public boolean equals(Object obj) {
if (this == obj) // quick check
return true;
if (obj == null || getClass() !!= obj.getClass())
return false;
MessageFormat other = (MessageFormat) obj;
return (maxOffset == other.maxOffset
&& pattern.equals(other.pattern)
&& ((locale !!= null && locale.equals(other.locale))
|| (locale == null && other.locale == null))
&& Arrays.equals(offsets,other.offsets)
&& Arrays.equals(argumentNumbers,other.argumentNumbers)
&& Arrays.equals(formats,other.formats));
}
/**
* Generates a hash code for the message format object.
*/
public int hashCode() {
return pattern.hashCode(); // enough for reasonable distribution
}
/**
* Defines constants that are used as attribute keys in the
* <code>AttributedCharacterIterator</code> returned
* from <code>MessageFormat.formatToCharacterIterator</code>.
*
* @since 1.4
*/
public static class Field extends Format.Field {
// Proclaim serial compatibility with 1.4 FCS
private static final long serialVersionUID = 7899943957617360810L;
/**
* Creates a Field with the specified name.
*
* @param name Name of the attribute
*/
protected Field(String name) {
super(name);
}
/**
* Resolves instances being deserialized to the predefined constants.
*
* @throws InvalidObjectException if the constant could not be
* resolved.
* @return resolved MessageFormat.Field constant
*/
protected Object readResolve() throws InvalidObjectException {
if (this.getClass() !!= MessageFormat.Field.class) {
throw new InvalidObjectException("subclass didn''t correctly implement readResolve");
}
return ARGUMENT;
}
//
// The constants
//
/**
* Constant identifying a portion of a message that was generated
* from an argument passed into <code>formatToCharacterIterator</code>.
* The value associated with the key will be an <code>Integer</code>
* indicating the index in the <code>arguments</code> array of the
* argument from which the text was generated.
*/
public final static Field ARGUMENT =
new Field("message argument field");
}
// ===========================privates============================
/**
* The locale to use for formatting numbers and dates.
* @serial
*/
private Locale locale;
/**
* The string that the formatted values are to be plugged into. In other words, this
* is the pattern supplied on construction with all of the {} expressions taken out.
* @serial
*/
private String pattern = "";
/** The initially expected number of subformats in the format */
private static final int INITIAL_FORMATS = 10;
/**
* An array of formatters, which are used to format the arguments.
* @serial
*/
private Format[] formats = new Format[INITIAL_FORMATS];
/**
* The positions where the results of formatting each argument are to be inserted
* into the pattern.
* @serial
*/
private int[] offsets = new int[INITIAL_FORMATS];
/**
* The argument numbers corresponding to each formatter. (The formatters are stored
* in the order they occur in the pattern, not in the order in which the arguments
* are specified.)
* @serial
*/
private int[] argumentNumbers = new int[INITIAL_FORMATS];
/**
* One less than the number of entries in <code>offsets</code>. Can also be thought of
* as the index of the highest-numbered element in <code>offsets</code> that is being used.
* All of these arrays should have the same number of elements being used as <code>offsets</code>
* does, and so this variable suffices to tell us how many entries are in all of them.
* @serial
*/
private int maxOffset = -1;
/**
* Internal routine used by format. If <code>characterIterators</code> is
* non-null, AttributedCharacterIterator will be created from the
* subformats as necessary. If <code>characterIterators</code> is null
* and <code>fp</code> is non-null and identifies
* <code>Field.MESSAGE_ARGUMENT</code>, the location of
* the first replaced argument will be set in it.
*
* @exception IllegalArgumentException if an argument in the
* <code>arguments</code> array is not of the type
* expected by the format element(s) that use it.
*/
private StringBuffer subformat(Object[] arguments, StringBuffer result,
FieldPosition fp, List characterIterators) {
// note: this implementation assumes a fast substring & index.
// if this is not true, would be better to append chars one by one.
int lastOffset = 0;
int last = result.length();
for (int i = 0; i <= maxOffset; ++i) {
result.append(pattern.substring(lastOffset, offsets[i]));
lastOffset = offsets[i];
int argumentNumber = argumentNumbers[i];
if (arguments == null || argumentNumber >= arguments.length) {
result.append("{" + argumentNumber + "}");
continue;
}
// int argRecursion = ((recursionProtection >> (argumentNumber*2)) & 0x3);
if (false) { // if (argRecursion == 3){
// prevent loop!!!!!!
result.append(''\uFFFD'');
} else {
Object obj = arguments[argumentNumber];
String arg = null;
Format subFormatter = null;
if (obj == null) {
arg = "null";
} else if (formats[i] !!= null) {
subFormatter = formats[i];
if (subFormatter instanceof ChoiceFormat) {
arg = formats[i].format(obj);
if (arg.indexOf(''{'') >= 0) {
subFormatter = new MessageFormat(arg, locale);
obj = arguments;
arg = null;
}
}
} else if (obj instanceof Number) {
// format number if can
subFormatter = NumberFormat.getInstance(locale);
} else if (obj instanceof Date) {
// format a Date if can
subFormatter = DateFormat.getDateTimeInstance(
DateFormat.SHORT, DateFormat.SHORT, locale);//fix
} else if (obj instanceof String) {
arg = (String) obj;
} else {
arg = obj.toString();
if (arg == null) arg = "null";
}
// At this point we are in two states, either subFormatter
// is non-null indicating we should format obj using it,
// or arg is non-null and we should use it as the value.
if (characterIterators !!= null) {
// If characterIterators is non-null, it indicates we need
// to get the CharacterIterator from the child formatter.
if (last !!= result.length()) {
characterIterators.add(
createAttributedCharacterIterator(result.substring
(last)));
last = result.length();
}
if (subFormatter !!= null) {
AttributedCharacterIterator subIterator =
subFormatter.formatToCharacterIterator(obj);
append(result, subIterator);
if (last !!= result.length()) {
characterIterators.add(
createAttributedCharacterIterator(
subIterator, Field.ARGUMENT,
new Integer(argumentNumber)));
last = result.length();
}
arg = null;
}
if (arg !!= null && arg.length() > 0) {
result.append(arg);
characterIterators.add(
createAttributedCharacterIterator(
arg, Field.ARGUMENT,
new Integer(argumentNumber)));
last = result.length();
}
}
else {
if (subFormatter !!= null) {
arg = subFormatter.format(obj);
}
last = result.length();
result.append(arg);
if (i == 0 && fp !!= null && Field.ARGUMENT.equals(
fp.getFieldAttribute())) {
fp.setBeginIndex(last);
fp.setEndIndex(result.length());
}
last = result.length();
}
}
}
result.append(pattern.substring(lastOffset, pattern.length()));
if (characterIterators !!= null && last !!= result.length()) {
characterIterators.add(createAttributedCharacterIterator(
result.substring(last)));
}
return result;
}
/**
* Convenience method to append all the characters in
* <code>iterator</code> to the StringBuffer <code>result</code>.
*/
private void append(StringBuffer result, CharacterIterator iterator) {
if (iterator.first() !!= CharacterIterator.DONE) {
char aChar;
result.append(iterator.first());
while ((aChar = iterator.next()) !!= CharacterIterator.DONE) {
result.append(aChar);
}
}
}
private static final String[] typeList =
{"", "", "number", "", "date", "", "time", "", "choice"};
private static final String[] modifierList =
{"", "", "currency", "", "percent", "", "integer"};
private static final String[] dateModifierList =
{"", "", "short", "", "medium", "", "long", "", "full"};
private void makeFormat(int position, int offsetNumber,
StringBuffer[] segments)
{
// get the argument number
int argumentNumber;
try {
argumentNumber = Integer.parseInt(segments[1].toString()); // always unlocalized!!
} catch (NumberFormatException e) {
throw new IllegalArgumentException("can''t parse argument number: " + segments[1]);
}
if (argumentNumber < 0) {
throw new IllegalArgumentException("negative argument number: " + argumentNumber);
}
// resize format information arrays if necessary
if (offsetNumber >= formats.length) {
int newLength = formats.length * 2;
Format[] newFormats = new Format[newLength];
int[] newOffsets = new int[newLength];
int[] newArgumentNumbers = new int[newLength];
System.arraycopy(formats, 0, newFormats, 0, maxOffset + 1);
System.arraycopy(offsets, 0, newOffsets, 0, maxOffset + 1);
System.arraycopy(argumentNumbers, 0, newArgumentNumbers, 0, maxOffset + 1);
formats = newFormats;
offsets = newOffsets;
argumentNumbers = newArgumentNumbers;
}
int oldMaxOffset = maxOffset;
maxOffset = offsetNumber;
offsets[offsetNumber] = segments[0].length();
argumentNumbers[offsetNumber] = argumentNumber;
// now get the format
Format newFormat = null;
switch (findKeyword(segments[2].toString(), typeList)) {
case 0:
break;
case 1: case 2:// number
switch (findKeyword(segments[3].toString(), modifierList)) {
case 0: // default;
newFormat = NumberFormat.getInstance(locale);
break;
case 1: case 2:// currency
newFormat = NumberFormat.getCurrencyInstance(locale);
break;
case 3: case 4:// percent
newFormat = NumberFormat.getPercentInstance(locale);
break;
case 5: case 6:// integer
newFormat = NumberFormat.getIntegerInstance(locale);
break;
default: // pattern
newFormat = new DecimalFormat(segments[3].toString(), DecimalFormatSymbols.getInstance(locale));
break;
}
break;
case 3: case 4: // date
switch (findKeyword(segments[3].toString(), dateModifierList)) {
case 0: // default
newFormat = DateFormat.getDateInstance(DateFormat.DEFAULT, locale);
break;
case 1: case 2: // short
newFormat = DateFormat.getDateInstance(DateFormat.SHORT, locale);
break;
case 3: case 4: // medium
newFormat = DateFormat.getDateInstance(DateFormat.DEFAULT, locale);
break;
case 5: case 6: // long
newFormat = DateFormat.getDateInstance(DateFormat.LONG, locale);
break;
case 7: case 8: // full
newFormat = DateFormat.getDateInstance(DateFormat.FULL, locale);
break;
default:
newFormat = new SimpleDateFormat(segments[3].toString(), locale);
break;
}
break;
case 5: case 6:// time
switch (findKeyword(segments[3].toString(), dateModifierList)) {
case 0: // default
newFormat = DateFormat.getTimeInstance(DateFormat.DEFAULT, locale);
break;
case 1: case 2: // short
newFormat = DateFormat.getTimeInstance(DateFormat.SHORT, locale);
break;
case 3: case 4: // medium
newFormat = DateFormat.getTimeInstance(DateFormat.DEFAULT, locale);
break;
case 5: case 6: // long
newFormat = DateFormat.getTimeInstance(DateFormat.LONG, locale);
break;
case 7: case 8: // full
newFormat = DateFormat.getTimeInstance(DateFormat.FULL, locale);
break;
default:
newFormat = new SimpleDateFormat(segments[3].toString(), locale);
break;
}
break;
case 7: case 8:// choice
try {
newFormat = new ChoiceFormat(segments[3].toString());
} catch (Exception e) {
maxOffset = oldMaxOffset;
throw new IllegalArgumentException(
"Choice Pattern incorrect");
}
break;
default:
maxOffset = oldMaxOffset;
throw new IllegalArgumentException("unknown format type: " +
segments[2].toString());
}
formats[offsetNumber] = newFormat;
segments[1].setLength(0); // throw away other segments
segments[2].setLength(0);
segments[3].setLength(0);
}
private static final int findKeyword(String s, String[] list) {
s = s.trim().toLowerCase();
for (int i = 0; i < list.length; ++i) {
if (s.equals(list[i]))
return i;
}
return -1;
}
private static final void copyAndFixQuotes(
String source, int start, int end, StringBuffer target) {
for (int i = start; i < end; ++i) {
char ch = source.charAt(i);
if (ch == ''{'') {
target.append("''{''");
} else if (ch == ''}'') {
target.append("''}''");
} else if (ch == ''\'''') {
target.append("''''");
} else {
target.append(ch);
}
}
}
/**
* After reading an object from the input stream, do a simple verification
* to maintain class invariants.
* @throws InvalidObjectException if the objects read from the stream is invalid.
*/
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
boolean isValid = maxOffset >= -1
&& formats.length > maxOffset
&& offsets.length > maxOffset
&& argumentNumbers.length > maxOffset;
if (isValid) {
int lastOffset = pattern.length() + 1;
for (int i = maxOffset; i >= 0; --i) {
if ((offsets[i] < 0) || (offsets[i] > lastOffset)) {
isValid = false;
break;
} else {
lastOffset = offsets[i];
}
}
}
if (!!isValid) {
throw new InvalidObjectException("Could not reconstruct MessageFormat from corrupt stream.");
}
}
}
'.
self assert: result isPetitFailure not.
"Created: / 16-03-2012 / 00:26:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_08a
result := JavaParserII parse:'
/*
* Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package java.lang.annotation;
/**
* Thrown to indicate that a program has attempted to access an element of
* an annotation type that was added to the annotation type definition after
* the annotation was compiled (or serialized). This exception will not be
* thrown if the new element has a default value.
*
* @author Josh Bloch
* @since 1.5
*/
public class IncompleteAnnotationException extends RuntimeException {
private Class annotationType;
private String elementName;
/**
* Constructs an IncompleteAnnotationException to indicate that
* the named element was missing from the specified annotation type.
*
* @param annotationType the Class object for the annotation type
* @param elementName the name of the missing element
*/
public IncompleteAnnotationException(
Class<? extends Annotation> annotationType,
String elementName) {
super(annotationType.getName() + " missing element " + elementName);
this.annotationType = annotationType;
this.elementName = elementName;
}
/**
* Returns the Class object for the annotation type with the
* missing element.
*
* @return the Class object for the annotation type with the
* missing element
*/
public Class<? extends Annotation> annotationType() {
return annotationType;
}
/**
* Returns the name of the missing element.
*
* @return the name of the missing element
*/
public String elementName() {
return elementName;
}
}
'.
self assert: result isPetitFailure not.
"Created: / 16-03-2012 / 00:57:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_08b
result := JavaParserII parse:'
public class IncompleteAnnotationException extends RuntimeException {
public Class<?> annotationType() {}
}'.
self assert: result isPetitFailure not.
"Created: / 16-03-2012 / 00:58:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_09a
result := JavaParserII parse:'
package java.lang;
import static java.io.*;
final class ProcessEnvironment
{
}
'.
self assert: result isPetitFailure not.
"Created: / 15-12-2012 / 17:38:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
test_compilation_unit_empty
result := JavaParserII parse:'
'.
self assert: result isPetitFailure not.
"Created: / 16-03-2012 / 00:25:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaParserIITests class methodsFor:'documentation'!
version_HG
^ '$Changeset: <not expanded> $'
!
version_SVN
^ '§Id§'
! !