"

 COPYRIGHT (c) 2005 by eXept Software AG

	      All Rights Reserved

 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.

"

"{ Package: 'stx:libjava' }"

Class subclass:#JavaBehavior

	instanceVariableNames:'constantPool interfaces accessFlags'

	classVariableNames:'InitialValuePerType A_OBSOLETE A_INTERFACE A_PUBLIC A_FINAL

		A_ABSTRACT A_INITIALIZED A_SMALLTALK A_ABSTRACT_OR_INTERFACE

		A_STATIC A_NATIVE'

	poolDictionaries:''

	category:'Languages-Java-Classes'

!

!JavaBehavior class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 2005 by eXept Software AG

	      All Rights Reserved

 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.

"

!

documentation

"

    Describes what is known and required by the VM.

"

! !

!JavaBehavior class methodsFor:'initialization'!

initialize

    "/ those are defined in Java and read from the classFile

    A_PUBLIC      := 16r000001.

    "/ A_PRIVATE     := 16r000002.

    "/ A_PROTECTED   := 16r000004.

    A_STATIC      := 16r000008.

    A_FINAL       := 16r000010.

    "/ A_SUPER         := 16r000020.

    "/ A_SYNCHRONIZED  := 16r000020.

    "/ A_VOLATILE      := 16r000040.

    "/ A_TRANSIENT     := 16r000080.

    A_NATIVE        := 16r000100.

    A_INTERFACE   := 16r000200.

    A_ABSTRACT    := 16r000400.

    A_OBSOLETE    := 16r008000.

    "/ those are local to the ST/X implementation

    A_INITIALIZED := 16r100000.

    A_SMALLTALK   := 16r200000.

    A_ABSTRACT_OR_INTERFACE := A_ABSTRACT bitOr:A_INTERFACE.

    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"

! !

!JavaBehavior class methodsFor:'constants'!

A_NATIVE

    ^ A_NATIVE

    "Created: / 16.5.1998 / 01:18:43 / cg"

!

A_PUBLIC

    ^ A_PUBLIC

    "Created: / 13.5.1998 / 13:03:18 / cg"

!

A_STATIC

    ^ A_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'!

constantPool

    ^ constantPool

!

interfaces

    interfaces notNil ifTrue:[

	interfaces := interfaces collect:[:clsRef |

				    clsRef isUnresolved ifTrue:[

					clsRef preResolve

				    ] ifFalse:[

					clsRef

				    ]

				 ].

    ].

    ^ interfaces

! !

!JavaBehavior methodsFor:'private accessing'!

makeObsolete

    accessFlags := accessFlags bitOr:A_OBSOLETE

    "Created: 7.8.1997 / 19:04:48 / cg"

!

markUninitialized

    (accessFlags bitAnd:A_INITIALIZED) ~~ 0 ifTrue:[

	accessFlags := accessFlags bitXor:A_INITIALIZED

    ].

!

setAccessFlags:flags

    accessFlags := flags.

    "Created: 15.4.1996 / 16:42:52 / cg"

!

setConstantPool:anArray

    constantPool := anArray.

    "Created: 15.4.1996 / 16:42:52 / cg"

!

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:A_ABSTRACT) ~~ 0

    "Modified: / 7.5.1998 / 12:24:42 / cg"

!

isFinal

    "return true, if the receiver is final

     (i.e. may not be subclassed)"

    ^ (accessFlags bitAnd:A_FINAL) ~~ 0

    "Modified: / 7.5.1998 / 12:24:21 / cg"

!

isInitialized

    "return true, if the receiver is initialized"

    ^ (accessFlags bitAnd:A_INITIALIZED) ~~ 0

    "Modified: / 7.5.1998 / 12:23:54 / cg"

!

isInterface

    "return true, if the receiver is an interface"

    ^ (accessFlags bitAnd:A_INTERFACE) ~~ 0

    "Modified: / 7.5.1998 / 12:23:39 / cg"

!

isObsolete

    "return true, if the receiver is obsolete

     Java classes are never."

    ^ (accessFlags bitAnd:A_OBSOLETE) ~~ 0.

    "Modified: 7.8.1997 / 19:04:28 / cg"

!

isPublic

    "return true, if the receiver is public"

    ^ (accessFlags bitAnd:A_PUBLIC) ~~ 0

    "Modified: / 7.5.1998 / 12:22:44 / cg"

! !

!JavaBehavior class methodsFor:'documentation'!

version

    ^ '$Header: /home/jv/Projects/SmalltalkX/repositories/cvs/stx/libjava/JavaBehavior.st,v 1.1 2005/08/12 16:31:06 cg Exp $'

! !

JavaBehavior initialize!