"

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 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 contain a signature

"

"{ Package: 'stx:libjava' }"

CompiledCode variableSubclass:#JavaMethod

	instanceVariableNames:'accessFlags selector javaClass descriptor signature lookupObject

		lineNumberTable localVariableTable sourceLineNumber annotations'

	classVariableNames:'AbstractMethodInvokationSignal SignatureTypeCodes

		ForceByteCodeDisplay UnresolvedClassSignal A_PUBLIC A_PRIVATE

		A_PROTECTED A_STATIC A_FINAL A_SYNCHRONIZED A_ABSTRACT A_NATIVE

		A_BREAKPOINT R_VOID R_LONG R_DOUBLE A_HASHANDLER A_BRIDGE

		A_VARARGS A_STRICT A_SYNTHETIC'

	poolDictionaries:'JavaConstants'

	category:'Languages-Java-Classes'

!

!JavaMethod class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 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 contain a signature

"

! !

!JavaMethod class methodsFor:'initialization'!

initialize

    AbstractMethodInvokationSignal isNil ifTrue:[

        AbstractMethodInvokationSignal := ExecutionError newSignalMayProceed:true.

        AbstractMethodInvokationSignal nameClass:self message:#abstractMethodInvokationSignal.

        AbstractMethodInvokationSignal notifierString:'attempt to execute abstract method'.

        UnresolvedClassSignal := ExecutionError newSignalMayProceed:true.

        UnresolvedClassSignal nameClass:self message:#unresolvedClassSignal.

        UnresolvedClassSignal notifierString:'unresolved class'.

    ].

    A_PUBLIC       := 16r0001.

    A_PRIVATE      := 16r0002.

    A_PROTECTED    := 16r0004.

    A_STATIC       := 16r0008.

    A_FINAL        := 16r0010.

    A_SYNCHRONIZED := 16r0020.

    A_BRIDGE       := 16r0040.

    A_VARARGS      := 16r0080.

    A_NATIVE       := 16r0100.

    A_ABSTRACT     := 16r0400.

    A_STRICT       := 16r0800.

    A_SYNTHETIC    := 16r1000.

    R_VOID         := 16r01000000.

    R_LONG         := 16r02000000.

    R_DOUBLE       := 16r04000000.

    A_BREAKPOINT   := 16r10000000.

    A_HASHANDLER   := 16r20000000.

    self flags:(self flags bitOr:Behavior flagJavaMethod).

    SignatureTypeCodes := IdentityDictionary new.

    SignatureTypeCodes at:$B put:#byte.

    SignatureTypeCodes at:$C put:#char.

    SignatureTypeCodes at:$D put:#double.

    SignatureTypeCodes at:$F put:#float.

    SignatureTypeCodes at:$I put:#int.

    SignatureTypeCodes at:$J put:#long.

    SignatureTypeCodes at:$S put:#'unsigned short'.

    SignatureTypeCodes at:$Z put:#boolean.

    SignatureTypeCodes at:$L put:#object.

    SignatureTypeCodes at:$[ put:#array.

    SignatureTypeCodes at:$T put:#typevar.

    ForceByteCodeDisplay := false.

    "

     JavaMethod initialize.

     JavaMethodWithHandler initialize.

     ForceByteCodeDisplay := true.

     ForceByteCodeDisplay := false.

    "

    "Modified: / 16-10-1998 / 01:29:48 / cg"

    "Modified: / 14-11-2011 / 23:54:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

reinitialize

    self flags:(self flags bitOr:Behavior flagJavaMethod).

    "Created: / 14-12-2010 / 20:58:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!JavaMethod class methodsFor:'instance creation'!

fromMethod:aJavaMethod

    "create a new javaMethod, copying values from another javaMethod"

    ^ self new fromMethod:aJavaMethod

    "Created: / 16.10.1998 / 01:25:12 / cg"

!

new

    "create a new javaMethod.

     Redefined, since constants are NOT stored in a literalArray,

     but my classes constantTable instead."

    ^ self basicNew:0.

    "Created: / 16.10.1998 / 01:13:02 / cg"

! !

!JavaMethod class methodsFor:'Signal constants'!

abstractMethodInvokationSignal

    "return the signal raised when an abstract method is invoked"

    ^ AbstractMethodInvokationSignal

    "Created: / 27.1.1998 / 21:50:05 / cg"

!

unresolvedClassSignal

    "return the signal raised when an unresolved class is referenced"

    ^ UnresolvedClassSignal

    "Created: / 27.1.1998 / 21:50:05 / cg"

! !

!JavaMethod class methodsFor:'misc'!

forceByteCodeDisplay

    ^ ForceByteCodeDisplay

    "Created: 7.4.1997 / 20:11:39 / cg"

!

forceByteCodeDisplay:aBoolean

    ForceByteCodeDisplay := aBoolean

    "

     self forceByteCodeDisplay:true

     self forceByteCodeDisplay:false

    "

    "Created: / 4.2.1998 / 00:22:54 / cg"

!

makeJavaMethod

    self flags:((self flags 

                 bitOr:Behavior flagJavaMethod)

                 bitClear:Behavior flagMetaMethod)

    "

        JavaMethod makeJavaMethod

        JavaMethod makeMetaMethod

    "

    "Created: / 23-02-2011 / 12:56:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

makeMetaMethod

    self flags:((self flags 

                 bitOr:Behavior flagMetaMethod)

                 bitClear:Behavior flagJavaMethod)

     "

        JavaMethod makeJavaMethod

        JavaMethod makeMetaMethod

    "

    "Created: / 23-02-2011 / 12:56:24 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!JavaMethod class methodsFor:'signature parsing'!

argSigArrayFromSignature:aSignature

    "given a signature, return a specArray for the arguments"

    |s|

    s := aSignature readStream.

    s next ~~ $( ifTrue:[self halt].

    ^ self argSigArrayFromStream:s.

    "

     JavaMethod argSigArrayFromSignature:'(LObject;)V'

     JavaMethod argSigArrayFromSignature:'(BB)S'      

     JavaMethod argSigArrayFromSignature:'(LObject;LObject;II)V'      

    "

!

argSigArrayFromStream:s

    "parse an argSpec, return an array of specs - see java doc"

    |argSpec spec|

    spec := #().

    [s atEnd or:[s peek == $)]] whileFalse:[

"/        s peek == Character space ifTrue:[

"/            s next

"/        ] ifFalse:[

            argSpec := self fieldTypeFromStream:s in:nil.

            spec := spec copyWith:argSpec.

"/        ]

    ].

    ^ spec

    "Modified: / 8.1.1998 / 19:10:20 / cg"

!

argSignatureFromArgTypeArray:arr 

    | sig |

    sig := ''.

    arr do:

            [:el | 

            | jCLass |

            jCLass := el.

            jCLass isJavaClass 

                ifFalse:[ jCLass := JavaVM reflection classForJavaClassObject:el ].

            jCLass isJavaClass 

                ifTrue:

                    [ sig := sig , jCLass typeName.

                    ]

                ifFalse:[ self halt. ] ].

    ^ sig

    "

     self argSignatureFromArgTypeArray:

 (Array

     with:(JavaVM javaClassObjectForClass:(Java at:'com.sun.java.swing.JComponent')))"

    "Modified: / 13-02-1998 / 14:57:58 / cg"

    "Modified: / 02-03-2011 / 22:49:24 / Marcel Hlopko <hlopik@gmail.com>"

!

argSpecFromSignature:aSignature withName:name

    "given a signature, return a spec"

    |s argSpec|

    s := aSignature readStream.

    s next ~~ $( ifTrue:[self halt. ^ name].

    argSpec := self argSpecFromStream:s in:nil.

    s next ~~ $) ifTrue:[self halt. ^ name].

    ^ name , ' (' , argSpec , ')'

    "

     JavaMethod argSpecFromSignature:'(LObject;)V' withName:'foo' 

     JavaMethod argSpecFromSignature:'(BB)S'       withName:'foo' 

    "

    "Modified: / 8.1.1998 / 19:05:36 / cg"

!

argSpecFromStream:s in:aPackage

    "parse an argSpec - see java doc"

    |argSpec spec|

    spec := ''.

    [s atEnd or:[s peek == $)]] whileFalse:[

"/        s peek == Character space ifTrue:[

"/            s next

"/        ] ifFalse:[

            argSpec := self fieldTypeFromStream:s in:aPackage.

            spec size ~~ 0 ifTrue:[

                spec := spec , ' '

            ].

            spec := spec , argSpec.

"/        ]

    ].

    ^ spec

    "Created: 18.3.1997 / 11:06:44 / cg"

!

argSpecWithArgsFromStream:s in:aPackage

    "parse an argSpec - see java doc"

    ^ self argSpecWithArgsFromStream:s in:aPackage argNames:nil

    "Modified: / 8.1.1998 / 19:21:00 / cg"

!

argSpecWithArgsFromStream:s in:aPackage argNames:argNames

    "parse an argSpec - see java doc"

    |argSpec spec argNr nm|

    argNr := 1.

    spec := ''.

    [s atEnd or:[s peek == $)]] whileFalse:[

        argSpec := self fieldTypeFromStream:s in:aPackage.

        (argNames notNil

        and:[argNames size >= argNr

        and:[(nm := argNames at:argNr) notNil]]) ifFalse:[

            nm := 'arg' , argNr printString.

        ].

        argSpec := argSpec , ' ' , nm.

        spec size ~~ 0 ifTrue:[

            spec := spec , ', '

        ].

        spec := spec , argSpec.

        argNr := argNr + 1.

    ].

    ^ spec

    "Created: / 8.1.1998 / 19:20:36 / cg"

    "Modified: / 8.1.1998 / 21:14:33 / cg"

!

fieldTypeFromStream:s in:aPackage

    "parse a fieldTypeSpec - see java doc"

    |typeChar typeSym elType size className nm out nangles |

    typeChar := s next.

    typeSym := SignatureTypeCodes at:typeChar ifAbsent:#unknown.

    typeSym == #unknown ifTrue:[

        ^ typeSym

    ].

    (typeSym == #object or: [typeSym == #typevar]) ifTrue:[

        "Take care about type variables"

        out := String new writeStream.

        [ s peek ~~ $; and:[ s peek ~~ $< ] ] whileTrue:[

            out nextPut: s next.

        ].

        className := out contents.

        "Eat possible type variables"

        (s peek == $<) ifTrue:[

            nangles := 1. s next.

            [  nangles ~~ 0 ] whileTrue:[

                s peek == $< ifTrue:[nangles := nangles + 1].

                s peek == $> ifTrue:[nangles := nangles - 1].

                s next.

            ]

        ].

        s peek ~~ $; ifTrue:[self error: 'Signature corrupted?'].

        s next. "/eat ;

        typeSym == #typevar ifTrue:[^className].

        "/ strip off default

        nm := className.

        aPackage notNil ifTrue:[

            (nm startsWith:aPackage) ifTrue:[

                nm := nm copyFrom:(aPackage size + 2).

            ].

        ].

        nm := nm copyReplaceAll:$/ with:$..

        ^ nm

    ].

    typeSym == #array ifTrue:[

        s peek isDigit ifTrue:[

            size := Integer readFrom:s.

            elType := self fieldTypeFromStream:s in:aPackage.

            ^ elType , '[' , size printString , ']'

        ].

        elType := self fieldTypeFromStream:s in:aPackage.

        ^ elType , '[]'

    ].

    ^ typeSym

    "Created: / 18-03-1997 / 11:07:56 / cg"

    "Modified: / 18-07-1998 / 22:57:06 / cg"

    "Modified: / 13-08-2011 / 01:05:22 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

numArgsFromSignature:aSignature

    "given a signature, return the number of args"

    |s|

    s := aSignature readStream.

    (aSignature includes: $() ifFalse:[self error:'Invalid signature'].

    [s next ~~ $(] whileTrue.

    ^ self numArgsFromStream:s.

    "

     JavaMethod numArgsFromSignature:'(LObject;)V'

     JavaMethod numArgsFromSignature:'(BB)S'      

     JavaMethod numArgsFromSignature:'()V'      

     JavaMethod numArgsFromSignature:'(Ljava/util/ArrayList<*>;)V'

    "

    "Modified (comment): / 13-08-2011 / 00:59:34 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

numArgsFromStream:s

    "parse an argSpec - see java doc"

    |n t|

    n := 0.

    [s atEnd or:[s peek == $)]] whileFalse:[

        t := self fieldTypeFromStream:s in:nil.

        "/

        "/ some args count as 2

        "/

        t == #long ifTrue:[

            n := n + 2.

        ] ifFalse:[

            t == #double ifTrue:[

                n := n + 2

            ] ifFalse:[

                n := n + 1.

            ]

        ]

    ].

    ^ n

    "Modified: / 8.1.1998 / 19:10:25 / cg"

!

retValSpecFromSignature:aSignature in:aPackage

    "given a signature, return a spec"

    |s argSpec retvalSpec|

    s := aSignature readStream.

    s next ~~ $( ifTrue:[self halt].

    argSpec := self argSpecFromStream:s in:aPackage.

    s next ~~ $) ifTrue:[self halt].

    retvalSpec := self retvalSpecFromStream:s in:aPackage.

    ^ retvalSpec 

    "

     JavaMethod retValSpecFromSignature:'(LObject;)V'

     JavaMethod retValSpecFromSignature:'(BB)S'      

    "

    "Created: 18.3.1997 / 11:11:50 / cg"

!

returnTypeFromSignature:aSignature in:aPackage

    "given a signature, return its type as a string"

    |s c|

    s := aSignature readStream.

    (c := s peek) ~~ $( ifTrue:[

        c == $' ifTrue:[

           [s peek ~= $'] whileTrue:[s next].

           s next.

           ^ (self retvalSpecFromStream:s in:aPackage)

        ].

        ^ (self retvalSpecFromStream:s in:aPackage)

    ].

    s next.

    self argSpecFromStream:s in:aPackage.

    s next ~~ $) ifTrue:[self halt. ^ nil].