"

 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 printString 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:'inspecting'!

inspectorExtraAttributes

    | attrs nm |

    attrs := super inspectorExtraAttributes.

    nm := self class name.

    nm == #'java/lang/reflect/Method' ifTrue:[

        attrs at:'-method' put: (JavaVM reflection methodForJavaMethodObject: self).

        ^attrs.

    ].

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

        attrs at:'-class' put: (JavaVM reflection classForJavaClassObject: self).

        ^attrs.

    ].

    ^attrs

    "Created: / 04-12-2011 / 19:28:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!JavaObject methodsFor:'message sending'!

doesNotUnderstand:aMessage

    | method  selector class args|

    selector := aMessage selector.

    args := aMessage arguments.

    class := self class.

    JavaLookup isNil ifTrue:[

        (Smalltalk loadPackage: 'stx:libjava/experiments') ifFalse:[

            self error: 'You should load package stx:libjava/experiments if you want some interop - still experimental' mayProceed: true.

            ^nil                        

        ]

    ].

    method := JavaLookup instance lookupMethodForSelector: selector

            directedTo: class

            for: self

            withArguments: args

            ilc: nil.

    method isNil ifTrue:[

        ^super doesNotUnderstand:aMessage

    ] ifFalse:[

        ^ method valueWithReceiver: self arguments: args

    ].

    "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

    ^String streamContents:[:s|self basicPrintOn: s].

    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>"

    "Modified: / 04-12-2011 / 20:16:33 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

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

    ^ '$Id$'

! !