Codegen: added support for smart action node compiling.
Avoid creation of intermediate result collection for action nodes if all references
to action block's argument (i.e., the nodes collection) is in form of:
* <nodes> at: <numeric constant>
* <nodes> first (second, third...
"{ Package: 'stx:goodies/petitparser' }"
PPLimitedRepeatingParser subclass:#PPLazyRepeatingParser
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Parsers'
!
!PPLazyRepeatingParser methodsFor:'parsing'!
parseOn: aPPContext
| memento element elements |
memento := aPPContext remember.
elements := OrderedCollection new.
[ elements size < min ] whileTrue: [
(element := parser parseOn: aPPContext) isPetitFailure ifTrue: [
aPPContext restore: memento.
^ element ].
elements addLast: element ].
[ self matchesLimitOn: aPPContext ] whileFalse: [
elements size < max ifFalse: [
aPPContext restore: memento.
^ PPFailure message: 'overflow' context: aPPContext at: memento position ].
element := parser parseOn: aPPContext.
element isPetitFailure ifTrue: [
aPPContext restore: memento.
^ element ].
elements addLast: element ].
^ elements asArray
! !
!PPLazyRepeatingParser class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLazyRepeatingParser.st,v 1.1 2014-03-04 14:32:47 cg Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLazyRepeatingParser.st,v 1.1 2014-03-04 14:32:47 cg Exp $'
! !