"

 COPYRIGHT (c) 2006 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:libcomp' }"

Object subclass:#Breakpoint

	instanceVariableNames:'position description line isReached method breaksToIgnore

		contexts'

	classVariableNames:''

	poolDictionaries:''

	category:'System-Compiler-Debugging'

!

Object subclass:#ContextData

	instanceVariableNames:'context nhits'

	classVariableNames:''

	poolDictionaries:''

	privateIn:Breakpoint

!

!Breakpoint class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 2006 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.

"

! !

!Breakpoint class methodsFor:'instance creation'!

new

    "return an initialized instance"

    ^ self basicNew initialize.

! !

!Breakpoint methodsFor:'accessing'!

breaksToIgnore

    ^ breaksToIgnore

!

breaksToIgnore:anInteger

    breaksToIgnore := anInteger.

!

description

    ^ description

!

description:aBreakpointDescription

    description := aBreakpointDescription.

!

isReached

    ^ isReached

!

isReached:aBoolean

    isReached := aBoolean.

!

line

    ^ line

!

line:anInteger

    line := anInteger.

!

position

    ^ position

!

position:anInteger

    position := anInteger.

    "Modified (format): / 02-08-2012 / 09:26:03 / cg"

!

position:positionArg line:lineArg

    position := positionArg.

    line := lineArg.

    "Created: / 02-08-2012 / 09:26:27 / cg"

! !

!Breakpoint methodsFor:'initialization'!

initialize

    "Invoked when a new instance is created."

    "/ please change as required (and remove this comment)

    "/ method := nil.

    "/ position := nil.

    description := BreakpointDescription new.

    "/ line := nil.

    breaksToIgnore := 0.

    contexts := OrderedCollection new.

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

    "Modified: / 16-04-2013 / 08:50:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!Breakpoint methodsFor:'printing & storing'!

printOn:aStream

    "append a printed representation if the receiver to the argument, aStream"

    aStream nextPutAll: 'BPNT at '.

    position notNil ifTrue:[

        aStream

            nextPutAll: 'source position ';

            nextPutAll: position printString.

    ] ifFalse:[

        line notNil ifTrue:[

            aStream

                nextPutAll: 'line ';

                nextPutAll: line printString.

        ] ifFalse:[

            aStream nextPutAll: '???'

        ]

    ]

    "Modified: / 24-04-2013 / 20:42:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!Breakpoint methodsFor:'support'!

beTracepoint

    "make this breakpoint a tracepoint"

    description beTracepoint

    "Created: / 27-01-2012 / 13:56:11 / cg"

!

break

    "invoked by the breakPoint's code (see BreakPointNode)"

    <resource: #skipInDebuggersWalkBack>

    |sender|

    sender := thisContext sender.

    (description shouldBreakIn: sender) ifTrue:[

        BreakPointInterrupt

            raiseRequestWith: self

            errorString:('Breakpoint encountered at line %1' bindWith:self line)

            in:sender.

    ].

    (description shouldTraceIn: sender) ifTrue:[

        Transcript 

            show:Timestamp now;

            showCR:(' Trace %1 [%2]' bindWith:sender methodPrintString with:self line)

    ].

    "Created: / 15-06-2011 / 12:48:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 11-07-2011 / 18:17:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 27-01-2012 / 14:10:22 / cg"

!

breakInternal

    "invoked by the VM when breakpoint is reached. Used by new breakpoint support. "

    | sender data i |

    sender := thisContext sender sender sender sender sender sender.

    breaksToIgnore ~~ 0 ifTrue:[

        i := 1.

        [ i <= contexts size ] whileTrue:[

            (contexts at: i) context isOnMachineStack ifFalse:[

                contexts removeIndex: i.

            ] ifTrue:[

                (contexts at: i) context == sender ifTrue:[

                    data := (contexts at: i)

                ]

            ].

            i := i + 1.

        ].

        data isNil ifTrue:[

            data := ContextData new context: sender; nhits: 0.

            contexts add: data.

        ].

        data nhits == 0 ifTrue:[

            data nhits: data nhits + 1.

            self break.

        ] ifFalse:[

            data nhits == breaksToIgnore ifTrue:[

                data nhits:0.

           ] ifFalse:[

                data nhits: data nhits + 1.

            ].

        ]

    ] ifFalse:[

        self break.

    ]

    "Created: / 15-04-2013 / 23:58:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 24-04-2013 / 20:53:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

disable

    "disable this breakpoint"

    description disable

!

toggle

    "toggle this breakpoint"

    description toggle

    "Created: / 17-06-2011 / 13:40:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 11-07-2011 / 18:18:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (comment): / 27-01-2012 / 10:41:03 / cg"

!

toggleTracing

    "toggle this breakpoint"

    description toggleTracing

    "Created: / 27-01-2012 / 13:56:05 / cg"

! !

!Breakpoint methodsFor:'testing'!

isEnabled

    "Bad coding here, state should be full object"

    ^description isEnabled

    "Created: / 28-06-2011 / 08:27:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!Breakpoint::ContextData methodsFor:'accessing'!

context

    ^ context

!

context:something

    context := something.

!

nhits

    ^ nhits

!

nhits:something

    nhits := something.

! !

!Breakpoint class methodsFor:'documentation'!

version

    ^ '$Header: /cvs/stx/stx/libcomp/Breakpoint.st,v 1.14 2013-04-24 19:55:21 vrany Exp $'

!

version_CVS

    ^ '$Header: /cvs/stx/stx/libcomp/Breakpoint.st,v 1.14 2013-04-24 19:55:21 vrany Exp $'

!

version_SVN

    ^ '§ Id §'

! !