"

 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' }"

Object subclass:#JavaObject

	instanceVariableNames:''

	classVariableNames:''

	poolDictionaries:''

	category:'Languages-Java-Classes'

!

!JavaObject 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

"

! !

!JavaObject class methodsFor:'misc'!

resolveClassRefs

!

resolveClassRefsIgnoring:setOfClasses

! !

!JavaObject class methodsFor:'smalltalk interface'!

convertJavaObject:val signature:retValSignature

^ val.

    retValSignature = 'void' ifTrue:[

	^ #void

    ].

    retValSignature = 'boolean' ifTrue:[

	val == 0 ifTrue:[^ false].

	^ true

    ].

    retValSignature = 'int' ifTrue:[

	val isInteger ifFalse:[

	    self halt

	].

	^ val

    ].

    retValSignature = 'char[]' ifTrue:[

	"/ these are ST-strings

	^ val

    ].

    retValSignature = 'char' ifTrue:[

	"/ these are ST-characters

	val isInteger ifTrue:[

	    ^ Character value:val

	].

	self halt.

	^ val

    ].

    retValSignature = 'Object' ifTrue:[

	^ val

    ].

    retValSignature = 'String' ifTrue:[

	^ Java as_ST_String:val

    ].

    'no conversion for: ' print. val class name print. ' to: ' print. retValSignature printNL.

    ^ val.

    "Modified: 8.8.1997 / 12:07:23 / cg"

!

javaStringFrom:aString

    "hard-coding internas of java.lang.String here is bad ..."

    self halt.

    ^ Java as_String:aString

    "Modified: 7.8.1997 / 21:17:32 / cg"

!

stringFromJavaString:aJavaString

    "hard-coding internas of java.lang.String here is bad ..."

    self halt.

    ^ Java as_ST_String:aJavaString

    "Modified: 8.8.1997 / 12:07:29 / cg"

! !

!JavaObject methodsFor:'finalization'!

finalize

    Logger log: 'Finalizing ', self javaDisplayString severity: #info facility: #JVM.

    [ self perform: #'finalize()V' ] on: Error do:["Nothing. see spec"]

    "Created: / 14-11-2011 / 12:32:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!JavaObject methodsFor:'initialization'!

initializeToZero

    |sz|

    sz := self class instSize.

    1 to:sz do:[:i |

	self instVarAt:i put:0

    ]

! !

!JavaObject methodsFor:'message sending'!

doesNotUnderstand:aMessage

    "as a courtesy to the smalltalker, try to map methods"

    ^ JavaClass 

        perform: aMessage 

        onReceiver: self 

        from: thisContext sender 

        ifNotFound: [ super doesNotUnderstand: aMessage]

"/    [

"/    ^ JavaLookup instance 

"/            perform: aMessage onReceiver: self from: thisContext sender.

"/    ] on: JavaDoesNotUnderstandException

"/    do: [:e |

"/       ^ super doesNotUnderstand: aMessage.

"/    ]

"/    |args numArgs javaMethod sel retVal m|

"/

"/    args := aMessage arguments.

"/    numArgs := args size.

"/    sel := aMessage selector.

"/

"/    javaMethod := JavaClass lookupMethod:sel numArgs:numArgs in:self class static:false.

"/    javaMethod notNil ifTrue:[

"/        args notNil ifTrue:[

"/            args := JavaClass 

"/                        convertArgsToJava:args 

"/                        asSpecifiedIn:(javaMethod argSignature)

"/                        numArgs:numArgs.

"/        ].

"/        javaMethod isWrapped ifTrue:[

"/            m := javaMethod originalMethod

"/        ] ifFalse:[

"/            m := javaMethod

"/        ].

"/        retVal := javaMethod 

"/            valueWithReceiver:self 

"/            arguments:args

"/            selector:m selector 

"/            search:m javaClass

"/            sender:nil.

"/

"/        ^ JavaClass convertToSmalltalk:retVal type:(m returnType).

"/    ].

"/    ^ super doesNotUnderstand:aMessage

    "Modified: / 16-11-1998 / 16:50:56 / cg"

    "Modified: / 19-09-2011 / 23:43:56 / Jan Kurs <kursjan@fit.cvut.cz>"

! !

!JavaObject methodsFor:'printing & storing'!

displayString

    JavaVM booted ifTrue:[

        | toString |

        [ toString := Java as_ST_String:(self perform:#'toString()Ljava/lang/String;').]

            on: Error do: [ toString := nil ].        

        toString notNil ifTrue:[        

            ^toString

        ]

    ].

    "Modified: / 04-11-1998 / 18:35:00 / cg"

    "Modified: / 28-01-2011 / 15:10:05 / Marcel Hlopko <hlopik@gmail.com>"

!

printOn: aStream

    |myClassName |

    myClassName := self class name.

    myClassName == #'java/lang/String' ifTrue:[

        aStream nextPut:$".

        aStream nextPutAll: (Java as_ST_String: self).

        aStream nextPut:$".

        ^self.

    ].

    myClassName == #'java/lang/Class' ifTrue:[

        super printOn: aStream.

        aStream nextPut: $(.

        (JavaVM reflection classForJavaClassObject:self) javaName printOn: aStream.

        aStream nextPut: $).

        ^self.

    ].

    myClassName == #'java.lang.reflect.Method' ifTrue:[

        super printOn: aStream.

        aStream nextPut: $(.

        (JavaVM reflection methodForJavaMethodObject:self) printOn: aStream.

        aStream nextPut: $).

        ^self.

    ].

    JavaVM booted ifTrue:[

        | toString |

        [ toString := Java as_ST_String:(self perform:#'toString()Ljava/lang/String;').]

            on: Error do: [ toString := nil ].        

        toString notNil ifTrue:[        

            "/super printOn: aStream.

            "/aStream nextPut: $(.

            aStream nextPutAll: toString.

            "/aStream nextPut: $).

            ^self.

        ] 

    ].

    super printOn: aStream.

    "Created: / 04-12-2011 / 10:29:08 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!JavaObject methodsFor:'queries'!

isJavaClassRef

    ^ false

    "Created: / 9.11.1999 / 17:13:37 / cg"

!

isJavaMethodRef

    ^ false

    "Created: / 9.11.1999 / 15:43:21 / cg"

!

isJavaObject

    ^ true

    "Created: 26.3.1997 / 13:34:17 / cg"

! !

!JavaObject methodsFor:'smalltalk interface'!

lookupMethod:selector numArgs:nargs

    "lookup a method"

    |method cls sel|

    sel := selector.

    (sel includes:$:) ifTrue:[

	sel := sel copyTo:(sel indexOf:$:)-1    

    ].

    sel := sel asSymbolIfInterned.

    sel notNil ifTrue:[

	cls := self class.

	[cls notNil and:[cls ~~ JavaObject]] whileTrue:[

	    cls methodDictionary keysAndValuesDo:[:jSel :aMethod |

		(jSel == sel ) ifTrue:[

		    ^ aMethod

		]

	    ].

	    cls methodDictionary keysAndValuesDo:[:jSel :aMethod |

		(aMethod name = sel 

		or:[aMethod signatureNameWithoutReturnType = sel]) ifTrue:[

		    aMethod numArgs == nargs ifTrue:[

			^ aMethod

		    ]

		]

	    ].

	    cls := cls superclass.

	].

    ].

    ^ nil

    "

     |stack|

     stack := (Java at:'java.util.Stack') basicNew.

     stack lookupMethod:#'<init>' numArgs:0. 

    "

    "

     |stack|

     stack := (Java at:'java.util.Stack') new.

     stack lookupMethod:#isEmpty numArgs:0. 

    "

    "

     |frame|

     frame := (Java at:'java.awt.Frame') new.

     frame lookupMethod:#'<init> (String)' numArgs:1. 

    "

    "Modified: 22.3.1997 / 00:56:54 / cg"

! !

!JavaObject methodsFor:'unwind'!

unwindHandlerInContext: aContext 

    "given a context which has been marked for unwind,

     retrieve the handler block. This method is called when ST

     exception raises and stack is unwinding. JavaClass instance

     has an opportunity to clean up monitors"

    ^ JavaVM unwindHandlerForJavaContext: aContext.

    "Created: / 08-11-2011 / 12:25:15 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"

! !

!JavaObject class methodsFor:'documentation'!

version

    ^ '$Id$'

!

version_SVN

    ^ '$Id$'

! !