Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Name: PetitCompiler-JanVrany.170
Author: JanVrany
Time: 24-08-2015, 03:19:51.340 PM
UUID: c20a744f-3b41-4aaa-bb8a-71ce74a2a952
Name: PetitCompiler-Tests-JanKurs.116
Author: JanKurs
Time: 24-08-2015, 11:37:54.332 AM
UUID: 549e0927-358a-4a1b-8270-050ccfcb4217
Name: PetitCompiler-Extras-Tests-JanKurs.29
Author: JanKurs
Time: 24-08-2015, 11:36:52.503 AM
UUID: ea1dbb67-f884-4237-8f34-adb0677c0954
Name: PetitCompiler-Benchmarks-JanKurs.19
Author: JanKurs
Time: 24-08-2015, 11:48:47.045 AM
UUID: 1c342fdb-8ddd-4104-9c47-a8f589c51694
"{ Package: 'stx:goodies/petitparser' }"
Object subclass:#PPContextMemento
instanceVariableNames:'stream position properties'
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Core'
!
!PPContextMemento methodsFor:'accessing'!
position
^ position
!
position: anInteger
position := anInteger
!
stream
^ stream
!
stream: aStream
stream := aStream
! !
!PPContextMemento methodsFor:'accessing - properties'!
hasProperty: aKey
"Test if the property aKey is present."
^ properties notNil and: [ properties includesKey: aKey ]
!
keysAndValuesDo: aBlock
properties ifNil: [ ^ self ].
properties keysAndValuesDo: [ :key :value | aBlock value: key value: value copy ]
!
propertiesSize
properties ifNil: [ ^ 0 ].
^ properties size.
!
propertyAt: aKey
"Answer the property value associated with aKey."
^ self propertyAt: aKey ifAbsent: [ self error: 'Property not found' ]
!
propertyAt: aKey ifAbsent: aBlock
"Answer the property value associated with aKey or, if aKey isn't found, answer the result of evaluating aBlock."
properties isNil
ifTrue: [ ^ aBlock value ]
ifFalse: [
(properties includesKey: aKey) ifTrue: [
^ (properties at: aKey) copy
].
^ aBlock value
]
!
propertyAt: aKey ifAbsentPut: aBlock
"Answer the property associated with aKey or, if aKey isn't found store the result of evaluating aBlock as new value."
^ self propertyAt: aKey ifAbsent: [ self propertyAt: aKey put: aBlock value ]
!
propertyAt: aKey put: anObject
"Set the property at aKey to be anObject. If aKey is not found, create a new entry for aKey and set is value to anObject. Answer anObject."
^ (properties ifNil: [ properties := Dictionary new: 1 ])
at: aKey put: (anObject copy)
!
removeProperty: aKey
"Remove the property with aKey. Answer the property or raise an error if aKey isn't found."
^ self removeProperty: aKey ifAbsent: [ self error: 'Property not found' ]
!
removeProperty: aKey ifAbsent: aBlock
"Remove the property with aKey. Answer the value or, if aKey isn't found, answer the result of evaluating aBlock."
| answer |
properties isNil ifTrue: [ ^ aBlock value ].
answer := properties removeKey: aKey ifAbsent: aBlock.
properties isEmpty ifTrue: [ properties := nil ].
^ answer
! !
!PPContextMemento methodsFor:'comparing'!
= anObject
(self == anObject) ifTrue: [ ^ true ].
(anObject class = PPContextMemento) ifFalse: [ ^ false ].
(anObject stream == stream) ifFalse: [ ^ false ].
(anObject position = position) ifFalse: [ ^ false ].
(self propertiesSize = anObject propertiesSize) ifFalse: [ ^ false ].
self keysAndValuesDo: [ :key :value |
(anObject hasProperty: key) ifFalse: [ ^ false ].
((anObject propertyAt: key) = value) ifFalse: [ ^ false ].
].
^ true.
!
hash
^ (position hash bitXor: stream hash) bitXor: properties hash.
! !