Fixed PPCCompiler: must refetch class afer updating instance variables of a given class.
The reason is, that in (at least) Smalltalk/X modyfing a layout of a class results
in creating a new class rather than updating an old one and migrating instances, i.e.,
the old class is not identical with the new class. Therefore, to install methods in in
correct class, we have to refetch new version from system dictionary. On Pharo it
should not harm
"{ Package: 'stx:goodies/petitparser' }"
PPDelegateParser subclass:#PPMemoizedParser
instanceVariableNames:'buffer context hash'
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Parsers'
!
!PPMemoizedParser methodsFor:'operations'!
memoized
"Ther is no point in memoizing more than once."
^ self
! !
!PPMemoizedParser methodsFor:'parsing'!
parseOn: aPPContext
| memento contextMemento aStream |
"TODO: JK memoizing needs review!!"
contextMemento := aPPContext remember.
(hash == aPPContext hash)
ifFalse: [ self reset: aPPContext ].
memento := (buffer at: contextMemento ifAbsentPut: [ PPMemento new ]).
memento contextMemento isNil
ifTrue: [
aStream := aPPContext stream.
memento result: (aStream size - aStream position + 2 < memento count
ifTrue: [ PPFailure message: 'overflow' context: aPPContext ]
ifFalse: [ memento increment. parser parseOn: aPPContext ]).
memento contextMemento: aPPContext remember ]
ifFalse: [ context restore: memento contextMemento ].
^ memento result.
!
reset: aPPContext
hash := aPPContext hash.
context := aPPContext.
buffer := Dictionary new.
! !
!PPMemoizedParser class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPMemoizedParser.st,v 1.3 2012-05-04 21:58:48 vrany Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPMemoizedParser.st,v 1.3 2012-05-04 21:58:48 vrany Exp $'
!
version_SVN
^ '§Id: PPMemoizedParser.st 2 2010-12-17 18:44:23Z vranyj1 §'
! !