JavaExceptionTableEntry.st
author cg
Fri, 07 Feb 1997 20:37:59 +0000
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Object subclass:#JavaExceptionTableEntry
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	instanceVariableNames:'startPC endPC handlerPC catchType'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'Java-Support'
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!
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!JavaExceptionTableEntry class methodsFor:'instance creation'!
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startPC:start_pc endPC:end_pc handlerPC:handler_pc catchType:catch_type
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    ^ self new startPC:start_pc endPC:end_pc handlerPC:handler_pc catchType:catch_type
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    "Created: 16.4.1996 / 12:11:13 / cg"
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! !
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!JavaExceptionTableEntry methodsFor:'accessing'!
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catchType
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    "return the value of the instance variable 'catchType' (automatically generated)"
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    ^ catchType
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    "Created: 7.2.1997 / 21:01:23 / cg"
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!
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endPC
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    "return the value of the instance variable 'endPC' (automatically generated)"
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    ^ endPC
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    "Created: 7.2.1997 / 20:53:23 / cg"
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handlerPC
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    "return the value of the instance variable 'handlerPC' (automatically generated)"
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    ^ handlerPC
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    "Created: 7.2.1997 / 20:06:31 / cg"
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!
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startPC
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    "return the value of the instance variable 'startPC' (automatically generated)"
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    ^ startPC
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    "Created: 7.2.1997 / 20:53:20 / cg"
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! !
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!JavaExceptionTableEntry methodsFor:'private accessing'!
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handlerPCFor:exception at:pc in:aMethod
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    "if there is a handler for exceptionClass, with given pc,
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     return the handler-PC; otherwise, return nil."
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    |cls|
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    (pc between:startPC and:endPC) ifTrue:[
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        (catchType == 0) ifTrue:[^ handlerPC].
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        (catchType isNil) ifTrue:[^ handlerPC].
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        cls := aMethod javaClass.
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        catchType isUnresolved ifTrue:[
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            catchType := catchType preResolve.
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        ].
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        (catchType isKindOf:JavaClass) ifFalse:[
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            self halt.
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            ^ nil
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        ].
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        (exception isKindOf:catchType) ifTrue:[
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            ^ handlerPC
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        ].
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        ^ nil
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    ].
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    ^ nil
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!
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startPC:start_pc endPC:end_pc handlerPC:handler_pc catchType:catch_type
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    startPC := start_pc.
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    endPC := end_pc.
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    handlerPC := handler_pc.
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    catchType := catch_type
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    "Created: 16.4.1996 / 12:11:45 / cg"
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! !
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!JavaExceptionTableEntry class methodsFor:'documentation'!
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version
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    ^ '$Header: /home/jv/Projects/SmalltalkX/repositories/cvs/stx/libjava/JavaExceptionTableEntry.st,v 1.9 1997/02/07 20:37:24 cg Exp $'
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! !