compiler/PPCRewritingVisitor.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Thu, 30 Apr 2015 23:43:14 +0200
changeset 438 20598d7ce9fa
child 452 9f4558b3be66
permissions -rw-r--r--
Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4 Name: PetitCompiler-JanKurs.100 Author: JanKurs Time: 30-04-2015, 10:48:52.165 AM UUID: 80196870-5921-46d9-ac20-a43bf5c2f3c2 Name: PetitCompiler-Tests-JanKurs.44 Author: JanKurs Time: 30-04-2015, 10:49:22.489 AM UUID: 348c02e8-18ce-48f6-885d-fcff4516a298 Name: PetitCompiler-Benchmarks-JanKurs.4 Author: JanKurs Time: 30-04-2015, 10:58:44.890 AM UUID: 18cadb42-f9ef-45fb-82e9-8469ade56c8b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
438
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     1
"{ Package: 'stx:goodies/petitparser/compiler' }"
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     2
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     3
"{ NameSpace: Smalltalk }"
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     4
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     5
PPCNodeVisitor subclass:#PPCRewritingVisitor
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     6
	instanceVariableNames:'change'
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     7
	classVariableNames:''
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     8
	poolDictionaries:''
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
     9
	category:'PetitCompiler-Visitors'
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    10
!
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    11
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    12
!PPCRewritingVisitor methodsFor:'as yet unclassified'!
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    13
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    14
change
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    15
	self flag: 'JK: Do we need this?'.
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    16
	change := true.
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    17
!
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    18
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    19
visitChild: child of: node
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    20
	| newChild |
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    21
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    22
	(self isOpen: child) ifTrue: [ 
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    23
		"already processing..."
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    24
		^ nil
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    25
	].
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    26
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    27
	(self isCached: child) ifTrue: [ 
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    28
		"Use Cached Value"
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    29
		node replace: child with: (self cachedValue: child).
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    30
		^ nil
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    31
	]. 
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    32
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    33
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    34
	change := false.
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    35
	newChild := self visit: child.
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    36
	change ifTrue: [ 
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    37
		node replace: child with: newChild.
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    38
	].
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    39
!
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    40
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    41
visitChildren: node
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    42
	node children do: [ :child | 
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    43
		self visitChild: child of: node
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    44
	]
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    45
! !
20598d7ce9fa Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    46