"
 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 (*)

 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.

 (*) extensions, changes and fixes for java1.1 compatibility.
     For a list of changes, see a list of diffs against the last stable version before 2011-08.
"
"{ Package: 'stx:libjava' }"

Array variableSubclass:#JavaConstantPool
	instanceVariableNames:'owner'
	classVariableNames:'ConstantPools'
	poolDictionaries:''
	category:'Languages-Java-Reader-Support'
!

!JavaConstantPool 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 (*)

 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.

 (*) extensions, changes and fixes for java1.1 compatibility.
     For a list of changes, see a list of diffs against the last stable version before 2011-08.

"
! !

!JavaConstantPool class methodsFor:'initialization'!

initialize
    ConstantPools := OrderedCollection new: 1000.

    "Modified: / 08-04-2011 / 17:28:07 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 09-04-2011 / 09:25:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!JavaConstantPool class methodsFor:'instance creation'!

new: size 
    "return an initialized instance"
    
    ^ ConstantPools add: ((super new: size)
                initialize;
                yourself).

    "Created: / 08-04-2011 / 16:56:18 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 09-04-2011 / 09:24:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 11-04-2011 / 18:46:54 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
! !

!JavaConstantPool class methodsFor:'accessing'!

allConstantPools
    "linked list of all constant pools in system"
    ^ ConstantPools.

    "Created: / 08-04-2011 / 16:53:58 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 09-04-2011 / 09:24:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

allConstantPools: anOorderedCollection 
    "linked list of all constant pools in system"
    
    ConstantPools := anOorderedCollection.

    "Created: / 08-04-2011 / 17:07:28 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 09-04-2011 / 09:24:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 11-04-2011 / 18:47:58 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
! !

!JavaConstantPool class methodsFor:'special'!

invalidateForClass: internalJavaClassName 
    "Only alias, everybody calls invalidateForClass so why not me :)"
    
    ^self invalidateReferencesToClass: internalJavaClassName.

    "Created: / 08-04-2011 / 16:52:52 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

invalidateReferencesToClass: internalJavaClassName 
    "Go over all constant pools and call invalidateForClass on all 
     references. (usable when given class was unloaded etc)"
    ConstantPools do: [:each | each invalidateForClass: internalJavaClassName].

    "Created: / 08-04-2011 / 16:09:03 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
! !

!JavaConstantPool methodsFor:'accessing'!

owner
    "return owner"

    ^ owner

    "Created: 28.6.1996 / 21:12:22 / cg"
!

owner:something
    "set owner"

    owner := something.

    "Created: 28.6.1996 / 21:12:22 / cg"
! !

!JavaConstantPool methodsFor:'adding'!

at: classRefIndex putClassRefWithNameAt: classNameIndex 
    self at: classRefIndex
        put: (JavaClassRef2 in: self withNameAt: classNameIndex).

    "Created: / 13-05-2011 / 09:48:01 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

at: fieldRefIndex putFieldRefWithClassAt: classRefIndex andNameAndTypeAt: nameAndTypeIndex 
    self at: fieldRefIndex
        put: (JavaFieldRef2 
                in: self
                withNameAndTypeAt: nameAndTypeIndex
                andClassAt: classRefIndex).

    "Created: / 13-05-2011 / 09:08:18 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

at: interfaceMethodRefIndex putInterfaceMethodRefWithClassAt: classRefIndex andNameAndTypeAt: nameAndTypeIndex 
    self at: interfaceMethodRefIndex
        put: (JavaInterfaceMethodRef2 
                in: self
                withNameAndTypeAt: nameAndTypeIndex
                andClassAt: classRefIndex).

    "Created: / 13-05-2011 / 09:08:50 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

at: methodRefIndex putMethodRefWithClassAt: classRefIndex andNameAndTypeAt: nameAndTypeIndex
    self at: methodRefIndex
        put: (JavaMethodRef2 in: self withNameAndTypeAt: nameAndTypeIndex andClassAt:classRefIndex).

    "Created: / 13-05-2011 / 09:07:47 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

at: nameAndTypeIndex putNameAndTypeWithNameAt: nameIndex andDescriptorAt: descriptorIndex
    self at: nameAndTypeIndex
        put: (JavaNameAndType2 in: self withNameAt: nameIndex andDescriptorAt: descriptorIndex).

    "Created: / 13-05-2011 / 09:05:34 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
! !

!JavaConstantPool methodsFor:'initialization'!

initialize
    "Invoked when a new instance is created."

    "/ please change as required (and remove this comment)
    "/ owner := nil.

    "/ super initialize.   -- commented since inherited method does nothing
! !

!JavaConstantPool methodsFor:'printing & storing'!

displayString
    owner isNil ifTrue:[
        ^ '*** unowned ConstantPool'
    ].
    ^ 'ConstantPool of ' , owner fullName

    "Created: 28.6.1996 / 21:13:41 / cg"
    "Modified: 28.6.1996 / 21:20:26 / cg"
! !

!JavaConstantPool methodsFor:'queries'!

refersToMethod:aJavaMethod

    self error: 'JV@2011-07-26: Update to new resolving scheme!!'.

    self do:[:constItem |
        (constItem == aJavaMethod) ifTrue:[^ true].

    ].
    ^ false

    "Created: / 29-07-1997 / 17:39:19 / cg"
    "Modified: / 26-07-2011 / 18:00:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

refersToMethodNamed:aJavaMethodName

    self error: 'JV@2011-07-26: Update to new resolving scheme!!'.
    
    self do:[:constItem |
        (constItem isKindOf:JavaMethod) ifTrue:[
            constItem name = aJavaMethodName ifTrue:[^ true].
        ] ifFalse:[
            
        ]
    ].
    ^ false

    "Created: / 29-07-1997 / 17:39:24 / cg"
    "Modified: / 16-10-1998 / 01:22:02 / cg"
    "Modified: / 26-07-2011 / 17:54:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!JavaConstantPool methodsFor:'special'!

classReferencesDo:aBlock
    self do:[:constItem |
        constItem isJavaClass ifTrue:[
            aBlock value:constItem
        ] 
    ]

    "Modified: / 7.8.1997 / 19:17:38 / cg"
    "Created: / 4.1.1998 / 00:40:11 / cg"
!

invalidateAll 
    "go over all entries and call invalidate on all references"
    
    self do: 
            [:entry | 
            entry isJavaRef 
                ifTrue: [ entry invalidate] ].

    "Created: / 13-05-2011 / 09:37:41 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

invalidateForClass: internalJavaClassName
"go over all entries and call invalidateForClass on all references"

self do: [:entry | entry isJavaRef ifTrue:[entry invalidateForClass: internalJavaClassName]].

    "Created: / 08-04-2011 / 16:11:36 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

updateClassRefsFrom:oldClass to:newClass
owner == oldClass ifTrue:[
    self halt.
    ^ self
].

    self keysAndValuesDo:[:index :constItem |
        |nameIndex|

        constItem == oldClass ifTrue:[
            self at:index put:newClass
        ] ifFalse:[
            (constItem isNil
            or:[constItem isNumber]) ifFalse:[
                constItem isString ifTrue:[
                    "/ nothing done ...
                ] ifFalse:[
                    (constItem isMemberOf:(Java java_lang_String)) ifTrue:[
                        "/ nothing done ...
                    ] ifFalse:[
                        constItem isBehavior ifFalse:[
                            constItem updateClassRefsFrom:oldClass to:newClass
                        ] ifTrue:[
                            constItem isJavaClass ifTrue:[
                                constItem fullName = oldClass fullName ifTrue:[
                                    'JAVA: class update by name [in pool].' infoPrintCR.
                                    newClass isNil ifTrue:[
                                        "/ mhm - must find a slot for the classes name
                                        nameIndex := -1.
                                        self 
                                            at:index
                                            put:(JavaUnresolvedClassConstant
                                                    pool:self
                                                    poolIndex:index
                                                    nameIndex:nameIndex)
                                    ] ifFalse:[
                                        self at:index put:newClass
                                    ]
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ]
    ]

    "Modified: / 4.2.1998 / 22:12:03 / cg"
! !

!JavaConstantPool class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/libjava/JavaConstantPool.st,v 1.17 2011-11-24 11:53:38 cg Exp $'
!

version_CVS
    ^ '$Header: /cvs/stx/stx/libjava/JavaConstantPool.st,v 1.17 2011-11-24 11:53:38 cg Exp $'
!

version_SVN
    ^ '§Id: JavaConstantPool.st,v 1.15 2011/08/18 18:42:48 vrany Exp §'
! !

JavaConstantPool initialize!