Oops, fix in isCloneable - if ACX_CLONEABLE is not set, always check interfaces.
"
COPYRIGHT (c) 1996-2011 by Claus Gittinger
New code and modifications done at SWING Research Group [1]:
COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko
SWING Research Group, Czech Technical University in Prague
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
[1] Code written at SWING Research Group contains a signature
of one of the above copright owners. For exact set of such code,
see the differences between this version and version stx:libjava
as of 1.9.2010
"
"{ Package: 'stx:libjava' }"
Class subclass:#JavaBehavior
instanceVariableNames:'constantPool interfaces accessFlags initValues'
classVariableNames:'InitialValuePerType ACX_ABSTRACT_OR_INTERFACE'
poolDictionaries:'JavaConstants'
category:'Languages-Java-Classes'
!
!JavaBehavior class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 1996-2011 by Claus Gittinger
New code and modifications done at SWING Research Group [1]:
COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko
SWING Research Group, Czech Technical University in Prague
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
[1] Code written at SWING Research Group contains a signature
of one of the above copright owners. For exact set of such code,
see the differences between this version and version stx:libjava
as of 1.9.2010
"
!
documentation
"
A base class for all Java classes. Slots & behavior defined here
is known to the VM. Do not change the order of slots and
add only to the end. You will have to modify stc.h then.
Non-VM known stuff could be added to JavaClass safely.
[author:]
Jan Vrany <jan.vrany@fit.cvut.cz>
[instance variables:]
constantPool
interfaces
accessFlags
[class variables:]
[see also:]
"
! !
!JavaBehavior class methodsFor:'initialization'!
initialize
"/ Cannot do this as the constant pool may not be initialized
"/ACX_ABSTRACT_OR_INTERFACE := ACC_ABSTRACT bitOr:ACC_INTERFACE.
ACX_ABSTRACT_OR_INTERFACE := 16r0000400 bitOr: 16r0000200.
InitialValuePerType := IdentityDictionary new.
InitialValuePerType at:$B put:0.
InitialValuePerType at:$C put:0.
InitialValuePerType at:$D put:0.0.
InitialValuePerType at:$F put:(0.0 asShortFloat).
InitialValuePerType at:$I put:0.
InitialValuePerType at:$J put:0.
InitialValuePerType at:$S put:0.
InitialValuePerType at:$Z put:0.
InitialValuePerType at:$L put:nil.
InitialValuePerType at:$[ put:nil.
"
JavaBehavior initialize
"
"Modified: / 13-11-1998 / 14:09:52 / cg"
"Modified: / 11-02-2012 / 16:55:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaBehavior class methodsFor:'constants'!
ACC_NATIVE
^ ACC_NATIVE
"Created: / 16.5.1998 / 01:18:43 / cg"
!
ACC_PUBLIC
^ ACC_PUBLIC
"Created: / 13.5.1998 / 13:03:18 / cg"
!
ACC_STATIC
^ ACC_STATIC
"Created: / 16.5.1998 / 00:02:07 / cg"
! !
!JavaBehavior class methodsFor:'signature parsing'!
initialValueFromSignature:aSignature
"given a signature, return an initializer value"
|s|
s := aSignature readStream.
^ self initialValueFromStream:s.
"
JavaBehavior initialValueFromSignature:'LObject;'
JavaBehavior initialValueFromSignature:'B'
JavaBehavior initialValueFromSignature:'I'
"
!
initialValueFromStream:s
"parse a fieldTypeSpec - see java doc"
|typeChar|
typeChar := s next.
^ InitialValuePerType at:typeChar ifAbsent:nil.
! !
!JavaBehavior methodsFor:'accessing'!
accessFlags
^ accessFlags
!
constantPool
^ constantPool
!
interfaceNames
"Returns set of intefaces as java names (dotted)"
^( interfaces ? #() ) collect:[:e|e isJavaClassRef ifTrue:[e javaClassName] ifFalse:[e javaName]].
"Created: / 13-02-2013 / 09:33:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 08-10-2013 / 22:40:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
interfaces
interfaces notNil
ifTrue:
[ interfaces := interfaces collect:
[:clsRef | clsRef javaClass ] ].
^ interfaces ? #()
"Modified: / 31-05-2011 / 09:40:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaBehavior methodsFor:'compiler interface'!
programmingLanguage
^JavaLanguage instance
"Created: / 26-10-2010 / 23:42:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaBehavior methodsFor:'private accessing'!
getInterfaces
^ interfaces
"Created: / 15-09-2013 / 00:29:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
hasMultipleVersions
"
return true if this class has multiple coexisting versions
"
^ ((accessFlags bitAnd:ACX_HASMULTIVERS) == 0) not.
"Created: / 02-10-2013 / 21:48:24 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"
"Modified: / 28-10-2013 / 13:01:32 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"
!
makeObsolete
accessFlags := accessFlags bitOr:ACC_OBSOLETE
"Created: 7.8.1997 / 19:04:48 / cg"
!
markMultipleVersions
"
mark this class non cacheable - references to this class have to be
resolved over and over again, cannot be cached."
self hasMultipleVersions not ifTrue: [
accessFlags := accessFlags bitXor: ACX_HASMULTIVERS
].
"Created: / 14-04-2013 / 14:17:38 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"
"Modified (comment): / 28-10-2013 / 14:07:35 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"
!
markNonMultipleVersions
"
mark this class cacheable - references to this class dont have to be
resolved over and over again, can be cached."
self hasMultipleVersions ifTrue: [
accessFlags := accessFlags bitXor: ACX_HASMULTIVERS
].
"Created: / 14-04-2013 / 14:25:23 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"
"Modified (comment): / 28-10-2013 / 14:07:59 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"
!
markUninitialized
(accessFlags bitAnd:ACX_INITIALIZED) ~~ 0 ifTrue:[
accessFlags := accessFlags bitXor:ACX_INITIALIZED
].
!
setAccessFlags:flags
accessFlags := flags.
"Created: 15.4.1996 / 16:42:52 / cg"
!
setConstantPool: aJavaConstantPool
constantPool := aJavaConstantPool.
constantPool ifNotNil:[constantPool owner: self].
"Created: / 15-04-1996 / 16:42:52 / cg"
"Modified: / 22-05-2011 / 13:16:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
setInterfaces:i
i size > 0 ifTrue:[
interfaces := i
] ifFalse:[
interfaces := nil
]
"Modified: 7.4.1997 / 15:44:53 / cg"
! !
!JavaBehavior methodsFor:'queries'!
hasInterface:aJavaInterface
"return true, if I respond to all methods as
required by the argument, an aJavaInterface"
interfaces size > 0 ifTrue:[
self interfaces do:[:if |
aJavaInterface == if ifTrue:[
^ true
].
]
].
superclass isJavaClass ifTrue:[
^ superclass hasInterface:aJavaInterface
].
^ false.
"/ aJavaInterface methodDictionary keysAndValuesDo:[:sel :mthd |
"/ (self canUnderstand:sel) ifFalse:[
"/ ^ false.
"/ ]
"/ ].
^ true
"Modified: / 28.1.1998 / 01:46:16 / cg"
!
isAbstract
"return true, if the receiver is abstract
(i.e. may not have instances)"
^ (accessFlags bitAnd:ACC_ABSTRACT) ~~ 0
"Modified: / 7.5.1998 / 12:24:42 / cg"
!
isAnnotation
"return true, if the receiver is an interface"
^ (accessFlags bitAnd:ACC_ANNOTATION) ~~ 0
"Modified: / 07-05-1998 / 12:23:39 / cg"
"Created: / 11-02-2012 / 16:55:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
isCloneable
"Return true, if the receiver implements java.lang.Cloneable,
i.e., if it can be cloned using Object#clone()"
(accessFlags bitAnd:ACX_CLONEABLE) ~~ 0 ifTrue:[ ^ true ].
interfaces isEmptyOrNil ifTrue:[ ^ false ].
"/ interfaces anElement isJavaClassRef ifTrue:[
self interfaces do:[:interface |
interface isCloneable ifTrue:[
"/ Cache the information here so subsequent call
"/ call to clone() can make use of fast flag-check
accessFlags := accessFlags bitOr:ACX_CLONEABLE.
^ true.
].
].
"/ ].
^ false.
"Created: / 12-11-2013 / 00:33:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 12-11-2013 / 02:09:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
isEnum
"return true, if the receiver is an interface"
^ (accessFlags bitAnd:ACC_ENUM) ~~ 0
"Modified: / 07-05-1998 / 12:23:39 / cg"
"Created: / 11-02-2012 / 16:55:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
isFinal
"return true, if the receiver is final
(i.e. may not be subclassed)"
^ (accessFlags bitAnd:ACC_FINAL) ~~ 0
"Modified: / 7.5.1998 / 12:24:21 / cg"
!
isInitialized
"return true, if the receiver is initialized"
^ (accessFlags bitAnd:ACX_INITIALIZED) ~~ 0
"Modified: / 7.5.1998 / 12:23:54 / cg"
!
isInterface
"return true, if the receiver is an interface"
^ (accessFlags bitAnd:ACC_INTERFACE) ~~ 0
"Modified: / 7.5.1998 / 12:23:39 / cg"
!
isObsolete
"return true, if the receiver is obsolete
Java classes are never."
^ (accessFlags bitAnd:ACC_OBSOLETE) ~~ 0.
"Modified: 7.8.1997 / 19:04:28 / cg"
!
isPackagePrivate
^ (accessFlags bitAnd:ACC_PRIVATE | ACC_PUBLIC | ACC_PROTECTED) = 0
"Created: / 05-07-2012 / 10:13:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
isPrivate
"return true, if the receiver is an interface"
^ (accessFlags bitAnd:ACC_PRIVATE) ~~ 0
"Modified: / 07-05-1998 / 12:23:39 / cg"
"Created: / 11-02-2012 / 16:55:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
isProtected
"return true, if the receiver is an interface"
^ (accessFlags bitAnd:ACC_PROTECTED) ~~ 0
"Modified: / 07-05-1998 / 12:23:39 / cg"
"Created: / 11-02-2012 / 16:56:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
isPublic
"return true, if the receiver is public"
^ (accessFlags bitAnd:ACC_PUBLIC) ~~ 0
"Modified: / 7.5.1998 / 12:22:44 / cg"
!
isSynthetic
"return true, if the receiver is a synthetic class
(usually a proxy generated at runtime)"
^ (accessFlags bitAnd:ACC_SYNTHETIC) ~~ 0
"Created: / 13-04-2012 / 18:51:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaBehavior class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libjava/JavaBehavior.st,v 1.9 2013-09-06 00:41:12 vrany Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/libjava/JavaBehavior.st,v 1.9 2013-09-06 00:41:12 vrany Exp $'
!
version_HG
^ '$Changeset: <not expanded> $'
!
version_SVN
^ 'Id'
! !
JavaBehavior initialize!