"{ Package: 'stx:goodies/petitparser/compiler' }"

"{ NameSpace: Smalltalk }"

PPCContext subclass:#PPCProfilingContext

	instanceVariableNames:'invocations remembers restores lwRemembers lwRestores totalSize

		tokenReads'

	classVariableNames:''

	poolDictionaries:''

	category:'PetitCompiler-Context'

!

!PPCProfilingContext methodsFor:'gt'!

gtReport: composite

    <gtInspectorPresentationOrder: 40>

    composite table 

        title: 'Report';

        column: 'Info' evaluated: [ :each | each key printString ];

        column: 'Value' evaluated: [ :each | each value printString ];

        display: [:context | context asReportTable ].

! !

!PPCProfilingContext methodsFor:'initialization'!

initialize

    super initialize.

    self reset

!

reset

    invocations := OrderedCollection new.

    remembers := OrderedCollection new.

    restores := OrderedCollection new.

    lwRemembers := OrderedCollection new.

    lwRestores := OrderedCollection new.

    tokenReads := OrderedCollection new.

    totalSize := 0.

! !

!PPCProfilingContext methodsFor:'profiling'!

invocations

    ^ invocations 

!

lwRemember

    | selector |

    selector := thisContext sender selector.

    lwRemembers add: selector.

    ^ super lwRemember

!

lwRestore: whatever

    | selector |

    selector := thisContext sender selector.

    lwRestores add: selector.

    ^ super lwRestore: whatever.

!

methodFinished: selector

    "Nothing to do for now"

!

methodInvoked: selector

    invocations add: selector

!

remember

    | sender selector |

    sender := thisContext sender.

    selector := (sender receiver isKindOf: PPCompiledParser) ifTrue: [ 

 				sender selector.

    ] ifFalse: [ 

 				sender receiver class.	

    ].

    remembers add: selector.

    ^ super remember

!

restore: whatever

    | selector sender |

    sender := thisContext sender.

    selector := (sender receiver isKindOf: PPCompiledParser) ifTrue: [ 

 				sender selector.

    ] ifFalse: [ 

 				sender receiver class.	

    ].

    restores add: selector.

    ^ super restore: whatever

!

stream: aStream

    totalSize := totalSize + aStream size.

    ^ super stream: aStream

!

tokenRead: tokenName

    tokenReads add: tokenName

!

tokenReadCount

    ^ tokenReads size

!

tokenReads

    ^ tokenReads 

! !

!PPCProfilingContext methodsFor:'reporting'!

asReportTable

    ^{ 

        #'invocations per character (NOT PRECISE YET)' -> (self invocationCount / (totalSize + 1.0)).

        #'lwBacktrack per character' -> (self lwRestoreCount / (totalSize + 1.0)).

        #'backtrack per character' -> (self restoreCount / (totalSize + 1.0)).

        #'total stream size' -> totalSize .

        #'invocation count' -> self invocationCount.

        #'lwRemember count' -> self lwRememberCount.

        #'lwRestore count' -> self lwRestoreCount.

        #'remember count' -> self rememberCount.

        #'restore count' -> self restoreCount.

        #'token read count' -> self tokenReadCount.

    }

!

invocationCount

    ^ invocations size

!

lwRememberCount

    ^ lwRemembers size

!

lwRestoreCount

    ^ lwRestores size

!

rememberCount

    ^ remembers size

!

restoreCount

    ^ restores size

! !

!PPCProfilingContext class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'

! !