| changeset 525 | 751532c8f3db |
| parent 516 | 3b81c9e53352 |
| parent 524 | f6f68d32de73 |
| child 529 | 439c4057517f |
| 523:09afcf28ed60 | 525:751532c8f3db |
|---|---|
1 "{ Package: 'stx:goodies/petitparser/compiler' }" |
1 "{ Package: 'stx:goodies/petitparser/compiler' }" |
2 |
2 |
3 "{ NameSpace: Smalltalk }" |
3 "{ NameSpace: Smalltalk }" |
4 |
4 |
5 PPCNodeVisitor subclass:#PPCCodeGenerator |
5 PPCNodeVisitor subclass:#PPCCodeGenerator |
6 instanceVariableNames:'compiler' |
6 instanceVariableNames:'codeGen' |
7 classVariableNames:'' |
7 classVariableNames:'' |
8 poolDictionaries:'' |
8 poolDictionaries:'' |
9 category:'PetitCompiler-Visitors' |
9 category:'PetitCompiler-Visitors-CodeGenerators' |
10 ! |
10 ! |
11 |
11 |
12 !PPCCodeGenerator class methodsFor:'as yet unclassified'! |
12 !PPCCodeGenerator class methodsFor:'as yet unclassified'! |
13 |
13 |
14 new |
14 new |
23 yourself |
23 yourself |
24 ! ! |
24 ! ! |
25 |
25 |
26 !PPCCodeGenerator methodsFor:'accessing'! |
26 !PPCCodeGenerator methodsFor:'accessing'! |
27 |
27 |
28 compiler: aPPCCompiler |
28 arguments: args |
29 compiler := aPPCCompiler |
29 super arguments: args. |
30 codeGen arguments: args. |
|
31 ! |
|
32 |
|
33 clazz: aPPCClass |
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34 codeGen clazz: aPPCClass |
|
35 ! |
|
36 |
|
37 codeGen |
|
38 ^ codeGen |
|
39 ! |
|
40 |
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41 codeGen: anObject |
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42 codeGen := anObject |
|
30 ! |
43 ! |
31 |
44 |
32 guards |
45 guards |
33 ^ arguments guards |
46 ^ arguments guards |
34 ! ! |
47 ! ! |
40 | children | |
53 | children | |
41 |
54 |
42 children := choiceNode children. |
55 children := choiceNode children. |
43 useGuards ifTrue:[ |
56 useGuards ifTrue:[ |
44 self addGuard: (children at: choiceChildNodeIndex) ifTrue: [ |
57 self addGuard: (children at: choiceChildNodeIndex) ifTrue: [ |
45 compiler add: 'self clearError.'. |
58 codeGen codeClearError. |
46 compiler |
59 codeGen |
47 codeAssignParsedValueOf:[ self visit:(children at: choiceChildNodeIndex) ] |
60 codeEvaluateAndAssign:[ self visit:(children at: choiceChildNodeIndex) ] |
48 to: resultVar. |
61 to: resultVar. |
49 compiler add: 'error ifFalse: [ '. |
62 codeGen codeIf: 'error' then: nil else: [ |
50 compiler codeReturn: resultVar. |
63 codeGen codeReturn: resultVar. |
51 compiler add: ' ].'. |
64 ]. |
52 ] ifFalse:[ |
65 ] ifFalse:[ |
53 compiler add: 'error := true.'. |
66 codeGen code: 'error := true.'. |
54 ]. |
67 ]. |
55 compiler add: 'error ifTrue:[ '. |
68 codeGen codeIf: 'error' then: [ |
56 choiceChildNodeIndex < children size ifTrue:[ |
69 choiceChildNodeIndex < children size ifTrue:[ |
70 self generateChoiceChildOf: choiceNode atIndex: choiceChildNodeIndex + 1 useGuards: useGuards storeResultInto: resultVar. |
|
71 ] ifFalse:[ |
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72 codeGen codeError: 'no choice suitable'. |
|
73 ]. |
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74 ]. |
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75 |
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76 ] ifFalse:[ |
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77 choiceChildNodeIndex <= children size ifTrue:[ |
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78 codeGen codeClearError. |
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79 codeGen |
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80 codeEvaluateAndAssignParsedValueOf:[ self visit:(children at: choiceChildNodeIndex) ] |
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81 to: resultVar. |
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82 codeGen codeIf: 'error' then: nil else: [ |
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83 codeGen codeReturn: resultVar. |
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84 ]. |
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57 self generateChoiceChildOf: choiceNode atIndex: choiceChildNodeIndex + 1 useGuards: useGuards storeResultInto: resultVar. |
85 self generateChoiceChildOf: choiceNode atIndex: choiceChildNodeIndex + 1 useGuards: useGuards storeResultInto: resultVar. |
58 ] ifFalse:[ |
86 ] ifFalse:[ |
59 compiler codeError: 'no choice suitable'. |
87 codeGen codeError: 'no choice suitable'. |
60 ]. |
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61 compiler addOnLine: '].'. |
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62 |
|
63 ] ifFalse:[ |
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64 choiceChildNodeIndex <= children size ifTrue:[ |
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65 compiler add: 'self clearError.'. |
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66 compiler |
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67 codeAssignParsedValueOf:[ self visit:(children at: choiceChildNodeIndex) ] |
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68 to: resultVar. |
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69 compiler add: 'error ifFalse: [ '. |
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70 compiler codeReturn: resultVar. |
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71 compiler add: ' ].'. |
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72 self generateChoiceChildOf: choiceNode atIndex: choiceChildNodeIndex + 1 useGuards: useGuards storeResultInto: resultVar. |
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73 ] ifFalse:[ |
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74 compiler codeError: 'no choice suitable'. |
|
75 ]. |
88 ]. |
76 ]. |
89 ]. |
77 |
90 |
78 |
91 |
79 ! |
92 ! |
81 generateSequenceChildOf: sequenceNode atIndex: sequenceNodeChildIndex useMememntoVar: mementoVar storeResultInto: elementVars |
94 generateSequenceChildOf: sequenceNode atIndex: sequenceNodeChildIndex useMememntoVar: mementoVar storeResultInto: elementVars |
82 | child childValueVar | |
95 | child childValueVar | |
83 |
96 |
84 child := sequenceNode children at: sequenceNodeChildIndex. |
97 child := sequenceNode children at: sequenceNodeChildIndex. |
85 childValueVar := elementVars at: sequenceNodeChildIndex. |
98 childValueVar := elementVars at: sequenceNodeChildIndex. |
86 compiler codeAssignParsedValueOf: [ self visit:child ] |
99 codeGen codeEvaluateAndAssign: [ self visit:child ] |
87 to: childValueVar. |
100 to: childValueVar. |
88 child acceptsEpsilon ifFalse: [ |
101 child acceptsEpsilon ifFalse: [ |
89 compiler codeIfErrorThen: [ |
102 codeGen codeIfErrorThen: [ |
90 "Handle error in the first element in a special way, |
103 "Handle error in the first element in a special way, |
91 because one does not need to do backtracking if the first element fails." |
104 because one does not need to do backtracking if the first element fails." |
92 (sequenceNodeChildIndex == 1) ifTrue: [ |
105 (sequenceNodeChildIndex == 1) ifTrue: [ |
93 compiler codeReturn: 'failure' |
106 codeGen codeReturn: 'failure' |
94 ] ifFalse: [ |
107 ] ifFalse: [ |
95 compiler smartRestore: sequenceNode from: mementoVar. |
108 codeGen restore: sequenceNode from: mementoVar. |
96 compiler codeReturn: 'failure.'. |
109 codeGen codeReturn: 'failure.'. |
97 ] |
110 ] |
98 ] else:[ |
111 ] else:[ |
99 sequenceNode returnParsedObjectsAsCollection ifTrue:[ |
112 sequenceNode returnParsedObjectsAsCollection ifTrue:[ |
100 compiler add: self retvalVar , ' at: ', sequenceNodeChildIndex asString, ' put: ', childValueVar, '.'. |
113 codeGen code: self retvalVar , ' at: ', sequenceNodeChildIndex asString, ' put: ', childValueVar, '.'. |
101 ]. |
114 ]. |
102 (sequenceNodeChildIndex < sequenceNode children size) ifTrue:[ |
115 (sequenceNodeChildIndex < sequenceNode children size) ifTrue:[ |
103 self generateSequenceChildOf: sequenceNode atIndex: sequenceNodeChildIndex + 1 useMememntoVar: mementoVar storeResultInto: elementVars. |
116 self generateSequenceChildOf: sequenceNode atIndex: sequenceNodeChildIndex + 1 useMememntoVar: mementoVar storeResultInto: elementVars. |
104 ]. |
117 ]. |
105 ] |
118 ] |
106 |
119 |
107 ] ifTrue:[ |
120 ] ifTrue:[ |
108 sequenceNode returnParsedObjectsAsCollection ifTrue:[ |
121 sequenceNode returnParsedObjectsAsCollection ifTrue:[ |
109 compiler add: self retvalVar , ' at: ', sequenceNodeChildIndex asString, ' put: ', childValueVar, '.'. |
122 codeGen code: self retvalVar , ' at: ', sequenceNodeChildIndex asString, ' put: ', childValueVar, '.'. |
110 ]. |
123 ]. |
111 (sequenceNodeChildIndex < sequenceNode children size) ifTrue:[ |
124 (sequenceNodeChildIndex < sequenceNode children size) ifTrue:[ |
112 self generateSequenceChildOf: sequenceNode atIndex: sequenceNodeChildIndex + 1 useMememntoVar: mementoVar storeResultInto: elementVars. |
125 self generateSequenceChildOf: sequenceNode atIndex: sequenceNodeChildIndex + 1 useMememntoVar: mementoVar storeResultInto: elementVars. |
113 |
126 |
114 ]. |
127 ]. |
115 ] |
128 ] |
116 ! ! |
129 ! ! |
117 |
130 |
118 !PPCCodeGenerator methodsFor:'guards'! |
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119 |
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120 addGuard: node ifTrue: trueBlock ifFalse: falseBlock |
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121 | guard id | |
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122 (self guards not or: [(guard := PPCGuard on: node) makesSense not]) ifTrue: [ ^ false]. |
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123 id := compiler idFor: node. |
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124 |
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125 " falseBlock isNil ifFalse: [ |
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126 compiler add: 'context atEnd'. |
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127 compiler addOnLine: ' ifTrue: ['. |
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128 compiler indent. |
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129 falseBlock value. |
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130 compiler dedent. |
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131 compiler addOnLine: '].'. |
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132 ]." |
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133 |
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134 guard id: (compiler idFor: guard defaultName: #guard). |
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135 guard compileGuard: compiler. |
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136 |
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137 trueBlock isNil ifFalse: [ |
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138 compiler addOnLine: ' ifTrue: ['. |
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139 compiler indent. |
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140 trueBlock value. |
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141 compiler dedent. |
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142 falseBlock isNil ifTrue: [ compiler addOnLine: '].' ] |
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143 ifFalse: [ compiler add: ']'. ] |
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144 ]. |
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145 falseBlock isNil ifFalse: [ |
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146 compiler addOnLine: ' ifFalse: ['. |
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147 compiler indent. |
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148 falseBlock value. |
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149 compiler dedent. |
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150 compiler addOnLine: '].'. |
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151 ]. |
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152 ^ true |
|
153 ! |
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154 |
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155 addGuardTrimming: node |
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156 | guard firsts id | |
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157 (self guards not or: [(guard := PPCGuard on: node) makesSense not]) ifTrue: [ ^ false]. |
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158 |
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159 id := compiler idFor: node. |
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160 firsts := node firstSetWithTokens. |
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161 |
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162 |
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163 (firsts allSatisfy: [ :e | e isTrimmingTokenNode ]) ifTrue: [ |
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164 "If we start with trimming, we should invoke the whitespace parser" |
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165 self compileTokenWhitespace: firsts anyOne. |
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166 ^ true |
|
167 ]. |
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168 ^ false |
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169 ! ! |
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170 |
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171 !PPCCodeGenerator methodsFor:'hooks'! |
131 !PPCCodeGenerator methodsFor:'hooks'! |
172 |
132 |
173 afterAccept: node retval: retval |
133 afterAccept: node retval: retval |
174 "return the method from compiler" |
134 "return the method from compiler" |
175 ^ self stopMethodForNode: node. |
135 ^ self stopMethodForNode: node. |
184 self error: 'Should not happen!!' |
144 self error: 'Should not happen!!' |
185 ] |
145 ] |
186 ! |
146 ! |
187 |
147 |
188 openDetected: node |
148 openDetected: node |
189 ^ compiler checkCache: (compiler idFor: node) |
149 ^ codeGen cachedMethod: (codeGen idFor: node) |
190 ! ! |
150 ! ! |
191 |
151 |
192 !PPCCodeGenerator methodsFor:'private'! |
152 !PPCCodeGenerator methodsFor:'private'! |
193 |
153 |
194 checkBlockIsInlinable: block |
154 checkBlockIsInlinable: block |
228 |
188 |
229 method := aClass lookupSelector: node selector. |
189 method := aClass lookupSelector: node selector. |
230 method isNil ifTrue:[ |
190 method isNil ifTrue:[ |
231 PPCCompilationError new signalWith: 'oops, no method found (internal error)!!'. |
191 PPCCompilationError new signalWith: 'oops, no method found (internal error)!!'. |
232 ]. |
192 ]. |
233 source := method source. |
193 source := method sourceCode. |
234 source isNil ifTrue:[ |
194 source isNil ifTrue:[ |
235 PPCCompilationError new signalWith: 'unavailable source for method ', method printString ,'!!'. |
195 PPCCompilationError new signalWith: 'unavailable source for method ', method printString ,'!!'. |
236 ]. |
196 ]. |
237 "Following actually copies the method to the target class, |
197 "Following actually copies the method to the target class, |
238 though the APU is not nice. This has to be cleaned up" |
198 though the APU is not nice. This has to be cleaned up" |
239 (compiler cachedValue: node selector) isNil ifTrue:[ |
199 (codeGen cachedMethod: node selector) isNil ifTrue:[ |
240 compiler cache: node selector as: (PPCMethod new id: node selector; source: source; yourself). |
200 codeGen cacheMethod: (PPCMethod new id: node selector; source: source; yourself) as: node selector. |
241 "Now compile self-sends of the just copied method" |
201 "Now compile self-sends of the just copied method" |
242 self copySelfSentMethodsOf: method parseTree inClass: aClass |
202 self copySelfSentMethodsOf: method parseTree inClass: aClass |
243 ]. |
203 ]. |
244 ] |
204 ] |
245 |
205 |
247 ! ! |
207 ! ! |
248 |
208 |
249 !PPCCodeGenerator methodsFor:'support'! |
209 !PPCCodeGenerator methodsFor:'support'! |
250 |
210 |
251 compileTokenWhitespace: node |
211 compileTokenWhitespace: node |
252 compiler add: 'context atWs ifFalse: ['. |
212 codeGen codeIf: 'context atWs' then: nil else: [ |
253 compiler indent. |
213 codeGen |
254 compiler |
214 codeEvaluateAndAssign:[ self visit:node whitespace ] |
255 codeAssignParsedValueOf:[ self visit:node whitespace ] |
|
256 to:#whatever. |
215 to:#whatever. |
257 compiler add: 'context setWs.'. |
216 codeGen code: 'context setWs.'. |
258 compiler dedent. |
217 ] |
259 compiler add: '].'. |
|
260 ! |
218 ! |
261 |
219 |
262 notCharSetPredicateBody: node |
220 notCharSetPredicateBody: node |
263 | classificationId classification | |
221 | classificationId classification | |
264 self error: 'deprecated.'. |
222 self error: 'deprecated.'. |
265 classification := node extendClassification: node predicate classification. |
223 classification := node extendClassification: node predicate classification. |
266 classificationId := (compiler idFor: classification defaultName: #classification). |
224 classificationId := (codeGen idFor: classification defaultName: #classification). |
267 compiler addConstant: classification as: classificationId. |
225 codeGen addConstant: classification as: classificationId. |
268 |
226 |
269 compiler addOnLine: '(', classificationId, ' at: context peek asInteger)'. |
227 codeGen addOnLine: '(', classificationId, ' at: context peek asInteger)'. |
270 compiler indent. |
228 codeGen indent. |
271 compiler add: ' ifTrue: [ self error: '' predicate not expected'' ]'. |
229 codeGen add: ' ifTrue: [ self error: '' predicate not expected'' ]'. |
272 compiler add: ' ifFalse: [ nil ].'. |
230 codeGen add: ' ifFalse: [ nil ].'. |
273 compiler dedent. |
231 codeGen dedent. |
274 ! |
232 ! |
275 |
233 |
276 notMessagePredicateBody: node |
234 notMessagePredicateBody: node |
277 self error: 'deprecated'. |
235 self error: 'deprecated'. |
278 compiler addOnLine: '(context peek ', node message, ')'. |
236 codeGen addOnLine: '(context peek ', node message, ')'. |
279 compiler indent. |
237 codeGen indent. |
280 compiler add: ' ifTrue: [ self error: '' predicate not expected'' ]'. |
238 codeGen add: ' ifTrue: [ self error: '' predicate not expected'' ]'. |
281 compiler add: ' ifFalse: [ nil ].'. |
239 codeGen add: ' ifFalse: [ nil ].'. |
282 compiler dedent. |
240 codeGen dedent. |
283 ! |
241 ! |
284 |
242 |
285 predicateBody: node |
243 predicateBody: node |
286 | tmpId | |
244 | tmpId | |
287 self error:'deprecated'. |
245 self error:'deprecated'. |
288 tmpId := (compiler idFor: node predicate prefixed: #predicate). |
246 tmpId := (codeGen idFor: node predicate prefixed: #predicate). |
289 compiler addConstant: node predicate as: tmpId. |
247 codeGen addConstant: node predicate as: tmpId. |
290 |
248 |
291 compiler addOnLine: '(context atEnd not and: [ ', tmpId , ' value: context uncheckedPeek])'. |
249 codeGen addOnLine: '(context atEnd not and: [ ', tmpId , ' value: context uncheckedPeek])'. |
292 compiler indent. |
250 codeGen indent. |
293 compiler add: 'ifFalse: [ self error: ''predicate not found'' ]'. |
251 codeGen add: 'ifFalse: [ self error: ''predicate not found'' ]'. |
294 compiler add: 'ifTrue: [ context next ].'. |
252 codeGen add: 'ifTrue: [ context next ].'. |
295 compiler dedent. |
253 codeGen dedent. |
296 ! |
254 ! |
297 |
255 |
298 retvalVar |
256 retvalVar |
299 ^ compiler currentReturnVariable |
257 ^ codeGen currentReturnVariable |
300 |
258 |
301 "Modified: / 15-06-2015 / 18:20:37 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
259 "Modified: / 15-06-2015 / 18:20:37 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
302 ! |
260 ! |
303 |
261 |
304 startMethodForNode:node |
262 startMethodForNode:node |
305 node isMarkedForInline ifTrue:[ |
263 node isMarkedForInline ifTrue:[ |
306 compiler startInline: (compiler idFor: node). |
264 codeGen startInline: (codeGen idFor: node). |
307 compiler codeComment: 'BEGIN inlined code of ' , node printString. |
265 codeGen codeComment: 'BEGIN inlined code of ' , node printString. |
308 compiler indent. |
266 codeGen indent. |
309 ] ifFalse:[ |
267 ] ifFalse:[ |
310 compiler startMethod: (compiler idFor: node). |
268 codeGen startMethod: (codeGen idFor: node). |
311 compiler codeComment: 'GENERATED by ' , node printString. |
269 codeGen codeComment: 'GENERATED by ' , node printString. |
312 compiler allocateReturnVariable. |
270 codeGen allocateReturnVariable. |
313 ]. |
271 ]. |
314 |
272 |
315 "Created: / 23-04-2015 / 15:51:06 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
273 "Created: / 23-04-2015 / 15:51:06 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
316 "Modified: / 23-04-2015 / 19:13:25 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
274 "Modified: / 23-04-2015 / 19:13:25 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
317 "Modified (format): / 15-06-2015 / 18:03:07 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
275 "Modified (format): / 15-06-2015 / 18:03:07 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
318 ! |
276 ! |
319 |
277 |
320 stopMethodForNode:aPPCNode |
278 stopMethodForNode:aPPCNode |
321 ^ aPPCNode isMarkedForInline ifTrue:[ |
279 ^ codeGen currentMethod isInline ifTrue:[ |
322 compiler dedent. |
280 codeGen dedent. |
323 compiler add: '"END inlined code of ' , aPPCNode printString , '"'. |
281 codeGen code: '"END inlined code of ' , aPPCNode printString , '"'. |
324 compiler stopInline. |
282 codeGen stopInline. |
325 ] ifFalse:[ |
283 ] ifFalse:[ |
326 compiler stopMethod |
284 codeGen stopMethod |
327 ]. |
285 ]. |
328 |
286 |
329 "Created: / 23-04-2015 / 15:51:09 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
287 "Created: / 23-04-2015 / 15:51:09 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
330 "Modified: / 23-04-2015 / 18:35:41 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
288 "Modified: / 23-04-2015 / 18:35:41 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
331 ! ! |
289 ! ! |
335 cache: node value: retval |
293 cache: node value: retval |
336 "this is compiler thing, not mine" |
294 "this is compiler thing, not mine" |
337 ! |
295 ! |
338 |
296 |
339 cachedDetected: node |
297 cachedDetected: node |
340 ^ compiler checkCache: (compiler idFor: node) |
298 ^ codeGen clazz cachedMethod: (codeGen idFor: node) |
341 ! |
299 ! |
342 |
300 |
343 isCached: node |
301 isCached: node |
344 ^ (compiler checkCache: (compiler idFor: node)) isNil not |
302 ^ (codeGen cachedMethod: (codeGen idFor: node)) isNil not |
345 ! ! |
303 ! ! |
346 |
304 |
347 !PPCCodeGenerator methodsFor:'visiting'! |
305 !PPCCodeGenerator methodsFor:'visiting'! |
348 |
306 |
349 visitActionNode: node |
307 visitActionNode: node |
421 |
379 |
422 "Block return value is return value of last statement. |
380 "Block return value is return value of last statement. |
423 So if the method is not inline, make last statement a return. |
381 So if the method is not inline, make last statement a return. |
424 if the method is inline, make it assignment to retvalVar." |
382 if the method is inline, make it assignment to retvalVar." |
425 blockBody statements notEmpty ifTrue:["Care for empty blocks - [:t | ] !!" |
383 blockBody statements notEmpty ifTrue:["Care for empty blocks - [:t | ] !!" |
426 compiler currentMethod isInline ifTrue:[ |
384 codeGen currentMethod isInline ifTrue:[ |
427 | assignment | |
385 | assignment | |
428 |
386 |
429 assignment := RBAssignmentNode variable: (RBVariableNode named: self retvalVar) value: blockBody statements last. |
387 assignment := RBAssignmentNode variable: (RBVariableNode named: self retvalVar) value: blockBody statements last. |
430 blockBody replaceNode: blockBody statements last withNode: assignment. |
388 blockBody replaceNode: blockBody statements last withNode: assignment. |
431 ] ifFalse:[ |
389 ] ifFalse:[ |
434 return := RBReturnNode value: blockBody statements last. |
392 return := RBReturnNode value: blockBody statements last. |
435 blockBody replaceNode: blockBody statements last withNode: return. |
393 blockBody replaceNode: blockBody statements last withNode: return. |
436 ]. |
394 ]. |
437 ]. |
395 ]. |
438 |
396 |
439 compiler codeAssignParsedValueOf:[ self visit:node child ] to:self retvalVar. |
397 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:self retvalVar. |
440 compiler codeIfErrorThen: [ |
398 codeGen codeIfErrorThen: [ |
441 compiler codeReturn: 'failure'. |
399 codeGen codeReturn: 'failure'. |
442 ] else: [ |
400 ] else: [ |
443 compiler code: blockBody. |
401 codeGen code: blockBody. |
444 ] |
402 ] |
445 |
403 |
446 "Modified: / 27-07-2015 / 15:49:15 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
404 "Modified: / 27-07-2015 / 15:49:15 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
447 ! |
405 ! |
448 |
406 |
449 visitAndNode: node |
407 visitAndNode: node |
450 | mementoVar | |
408 | mementoVar | |
451 |
409 |
452 mementoVar := compiler allocateTemporaryVariableNamed: 'memento'. |
410 mementoVar := codeGen allocateTemporaryVariableNamed: 'memento'. |
453 compiler smartRemember: node child to: mementoVar. |
411 codeGen remember: node child to: mementoVar. |
454 |
412 |
455 compiler |
413 codeGen |
456 codeAssignParsedValueOf:[ self visit:node child ] |
414 codeEvaluateAndAssign:[ self visit:node child ] |
457 to:self retvalVar. |
415 to:self retvalVar. |
458 compiler smartRestore: node child from: mementoVar. |
416 codeGen restore: node child from: mementoVar. |
459 |
417 |
460 compiler codeReturn. |
418 codeGen codeReturn. |
461 |
419 |
462 "Modified: / 23-04-2015 / 15:59:07 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
420 "Modified: / 23-04-2015 / 15:59:07 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
463 ! |
421 ! |
464 |
422 |
465 visitAnyNode: node |
423 visitAnyNode: node |
466 |
424 |
467 compiler codeReturn: 'context next ifNil: [ error := true. ].'. |
425 codeGen codeReturn: 'context next ifNil: [ error := true. ].'. |
468 |
426 |
469 "Modified: / 23-04-2015 / 20:52:15 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
427 "Modified: / 23-04-2015 / 20:52:15 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
470 ! |
428 ! |
471 |
429 |
472 visitCharSetPredicateNode: node |
430 visitCharSetPredicateNode: node |
473 |
431 |
474 | classification classificationId | |
432 | classification classificationId | |
475 classification := node extendClassification: node predicate classification. |
433 classification := node extendClassification: node predicate classification. |
476 classificationId := compiler idFor: classification defaultName: #classification. |
434 classificationId := codeGen idFor: classification defaultName: #classification. |
477 compiler addConstant: classification as: classificationId. |
435 codeGen addConstant: classification as: classificationId. |
478 |
436 |
479 compiler add: '(', classificationId, ' at: context peek asInteger)'. |
437 codeGen codeIf: '(', classificationId, ' at: context peek asInteger)' then: [ |
480 compiler indent. |
438 codeGen codeReturn: 'context next'. |
481 compiler add: 'ifFalse: ['. |
439 ] else: [ |
482 compiler codeError: 'predicate not found'. |
440 codeGen codeError: 'predicate not found'. |
483 compiler add: '] ifTrue: [ '. |
441 ] |
484 compiler codeReturn: 'context next'. |
|
485 compiler add: '].'. |
|
486 compiler dedent. |
|
487 ! |
442 ! |
488 |
443 |
489 visitCharacterNode: node |
444 visitCharacterNode: node |
490 | chid | |
445 | chid | |
491 node character ppcPrintable ifTrue: [ |
446 node character ppcPrintable ifTrue: [ |
492 chid := node character storeString |
447 chid := node character storeString |
493 ] ifFalse: [ |
448 ] ifFalse: [ |
494 chid := compiler idFor: node character defaultName: #char. |
449 chid := codeGen idFor: node character defaultName: #char. |
495 compiler addConstant: (Character value: node character asInteger) as: chid . |
450 codeGen addConstant: (Character value: node character asInteger) as: chid . |
496 ]. |
451 ]. |
497 |
452 |
498 compiler add: '(context peek == ', chid, ')'. |
453 codeGen codeIf: '(context peek == ', chid, ')' then: [ |
499 compiler indent. |
454 codeGen codeReturn: 'context next'. |
500 compiler add: 'ifFalse: ['. |
455 ] else: [ |
501 compiler indent. |
456 codeGen codeError: node character asInteger asString, ' expected'. |
502 compiler codeError: node character asInteger asString, ' expected'. |
457 ]. |
503 compiler dedent. |
|
504 compiler add: '] ifTrue: [ '. |
|
505 compiler indent. |
|
506 compiler codeReturn: 'context next'. |
|
507 compiler dedent. |
|
508 compiler add: '].'. |
|
509 compiler dedent. |
|
510 ! |
458 ! |
511 |
459 |
512 visitChild: child of: node |
460 visitChild: child of: node |
513 | | |
461 | | |
514 |
462 |
521 ! |
469 ! |
522 |
470 |
523 visitChoiceNode: node |
471 visitChoiceNode: node |
524 | whitespaceConsumed useGuards resultVar | |
472 | whitespaceConsumed useGuards resultVar | |
525 |
473 |
526 resultVar := compiler allocateTemporaryVariableNamed: 'element'. |
474 resultVar := codeGen allocateTemporaryVariableNamed: 'element'. |
527 whitespaceConsumed := self addGuardTrimming: node. |
475 whitespaceConsumed := self addGuardTrimming: node. |
528 useGuards := whitespaceConsumed. |
476 useGuards := whitespaceConsumed. |
529 self generateChoiceChildOf: node atIndex: 1 useGuards: useGuards storeResultInto: resultVar |
477 self generateChoiceChildOf: node atIndex: 1 useGuards: useGuards storeResultInto: resultVar |
530 |
478 |
531 |
479 |
532 "Modified: / 29-05-2015 / 07:17:36 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
480 "Modified: / 29-05-2015 / 07:17:36 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
533 ! |
481 ! |
534 |
482 |
535 visitEndOfFileNode: node |
483 visitEndOfFileNode: node |
536 compiler codeReturn: 'context atEnd ifTrue: [ #EOF ] ifFalse: [ self error: ''EOF expected!!'' ].'. |
484 codeGen codeReturn: 'context atEnd ifTrue: [ #EOF ] ifFalse: [ self error: ''EOF expected!!'' ].'. |
537 ! |
485 ! |
538 |
486 |
539 visitEndOfInputNode: node |
487 visitEndOfInputNode: node |
540 |
488 |
541 compiler |
489 codeGen |
542 codeAssignParsedValueOf:[ self visit:node child ] |
490 codeEvaluateAndAssign:[ self visit:node child ] |
543 to:self retvalVar. |
491 to:self retvalVar. |
544 compiler codeIf: 'context atEnd' |
492 codeGen codeIf: 'context atEnd' |
545 then: [ compiler codeReturn ] |
493 then: [ codeGen codeReturn ] |
546 else: [ compiler codeError: 'End of input expected' ]. |
494 else: [ codeGen codeError: 'End of input expected' ]. |
547 |
495 |
548 "Modified: / 26-05-2015 / 19:03:09 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
496 "Modified: / 26-05-2015 / 19:03:09 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
549 ! |
497 ! |
550 |
498 |
551 visitForwardNode: node |
499 visitForwardNode: node |
552 |
500 |
553 compiler |
501 codeGen |
554 codeAssignParsedValueOf:[ self visit:node child ] |
502 codeEvaluateAndAssign:[ self visit:node child ] |
555 to:self retvalVar. |
503 to:self retvalVar. |
556 compiler codeReturn. |
504 codeGen codeReturn. |
557 ! |
505 ! |
558 |
506 |
559 visitLiteralNode: node |
507 visitLiteralNode: node |
560 | positionVar encodedLiteral | |
508 | positionVar encodedLiteral | |
561 encodedLiteral := node encodeQuotes: node literal. |
509 encodedLiteral := node encodeQuotes: node literal. |
562 positionVar := compiler allocateTemporaryVariableNamed: 'position'. |
510 positionVar := codeGen allocateTemporaryVariableNamed: 'position'. |
563 |
511 |
564 compiler codeAssign: 'context position.' to: positionVar. |
512 codeGen codeAssign: 'context position.' to: positionVar. |
565 compiler add: '((context next: ', node literal size asString, ') = #''', encodedLiteral, ''') ifTrue: ['. |
513 codeGen codeIf: '((context next: ', node literal size asString, ') = #''', encodedLiteral, ''')' then: [ |
566 compiler codeReturn: '#''', encodedLiteral, ''' '. |
514 codeGen codeReturn: '#''', encodedLiteral, ''' '. |
567 compiler add: '] ifFalse: ['. |
515 ] else: [ |
568 compiler indent. |
516 codeGen code: 'context position: ', positionVar, '.'. |
569 compiler add: 'context position: ', positionVar, '.'. |
517 codeGen codeError: encodedLiteral, ' expected' at: positionVar. |
570 compiler codeError: encodedLiteral, ' expected' at: positionVar. |
518 ]. |
571 compiler dedent. |
|
572 compiler add: '].'. |
|
573 ! |
519 ! |
574 |
520 |
575 visitMappedActionNode: node |
521 visitMappedActionNode: node |
576 | child blockNode blockBody | |
522 | child blockNode blockBody | |
577 |
523 |
581 blockBody := blockNode body. |
527 blockBody := blockNode body. |
582 |
528 |
583 "Block return value is return value of last statement. |
529 "Block return value is return value of last statement. |
584 So if the method is not inline, make last statement a return. |
530 So if the method is not inline, make last statement a return. |
585 if the method is inline, make it assignment to retvalVar." |
531 if the method is inline, make it assignment to retvalVar." |
586 compiler currentMethod isInline ifTrue:[ |
532 codeGen currentMethod isInline ifTrue:[ |
587 | assignment | |
533 | assignment | |
588 |
534 |
589 assignment := RBAssignmentNode variable: (RBVariableNode named: self retvalVar) value: blockBody statements last. |
535 assignment := RBAssignmentNode variable: (RBVariableNode named: self retvalVar) value: blockBody statements last. |
590 blockBody replaceNode: blockBody statements last withNode: assignment. |
536 blockBody replaceNode: blockBody statements last withNode: assignment. |
591 ] ifFalse:[ |
537 ] ifFalse:[ |
614 variableNode name: self retvalVar. |
560 variableNode name: self retvalVar. |
615 ]. |
561 ]. |
616 ]. |
562 ]. |
617 ]. |
563 ]. |
618 |
564 |
619 compiler codeAssignParsedValueOf: [ self visit: child ] to: self retvalVar. |
565 codeGen codeEvaluateAndAssign: [ self visit: child ] to: self retvalVar. |
620 compiler codeIf: 'error' then: [ |
566 codeGen codeIf: 'error' then: [ |
621 compiler codeReturn: 'failure'. |
567 codeGen codeReturn: 'failure'. |
622 ] else: [ |
568 ] else: [ |
623 "If the child is sequence and not inlined, extract |
569 "If the child is sequence and not inlined, extract |
624 nodes from returned collection into used-to-be block variables" |
570 nodes from returned collection into used-to-be block variables" |
625 (child isSequenceNode and:[ child returnParsedObjectsAsCollection ]) ifTrue:[ |
571 (child isSequenceNode and:[ child returnParsedObjectsAsCollection ]) ifTrue:[ |
626 blockNode arguments withIndexDo:[ :arg :idx | |
572 blockNode arguments withIndexDo:[ :arg :idx | |
627 node child isMarkedForInline ifFalse:[ |
573 node child isMarkedForInline ifFalse:[ |
628 compiler allocateTemporaryVariableNamed: arg name. |
574 codeGen allocateTemporaryVariableNamed: arg name. |
629 compiler codeAssign: (self retvalVar , ' at: ', idx printString) to: arg name. |
575 codeGen codeAssign: (self retvalVar , ' at: ', idx printString) to: arg name. |
630 ]. |
576 ]. |
631 compiler addOnLine: '.'; nl. |
577 codeGen codeOnLine: '.'; codeNl. |
632 ]. |
578 ]. |
633 ]. |
579 ]. |
634 compiler code: blockBody. |
580 codeGen code: blockBody. |
635 ] |
581 ] |
636 |
582 |
637 "Created: / 02-06-2015 / 17:28:55 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
583 "Created: / 02-06-2015 / 17:28:55 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
638 "Modified: / 27-07-2015 / 15:49:58 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
584 "Modified: / 27-07-2015 / 15:49:58 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
639 ! |
585 ! |
640 |
586 |
641 visitMessagePredicateNode: node |
587 visitMessagePredicateNode: node |
642 compiler add: '(context peek ', node message, ') ifFalse: ['. |
588 codeGen codeIf: '(context peek ', node message, ')' then: [ |
643 compiler codeError: 'predicate not found'. |
589 codeGen codeReturn: ' context next'. |
644 compiler add: '] ifTrue: [ '. |
590 ] else: [ |
645 compiler codeReturn: ' context next'. |
591 codeGen codeError: 'predicate not found'. |
646 compiler add: '].'. |
592 ] |
647 |
|
648 "Modified: / 23-04-2015 / 18:39:03 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
593 "Modified: / 23-04-2015 / 18:39:03 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
649 ! |
594 ! |
650 |
595 |
651 visitNilNode: node |
596 visitNilNode: node |
652 |
597 |
653 compiler codeReturn: 'nil.'. |
598 codeGen codeReturn: 'nil.'. |
654 ! |
599 ! |
655 |
600 |
656 visitNotCharSetPredicateNode: node |
601 visitNotCharSetPredicateNode: node |
657 | classificationId classification | |
602 | classificationId classification | |
658 classification := node extendClassification: node predicate classification. |
603 classification := node extendClassification: node predicate classification. |
659 classificationId := (compiler idFor: classification defaultName: #classification). |
604 classificationId := (codeGen idFor: classification defaultName: #classification). |
660 compiler addConstant: classification as: classificationId. |
605 codeGen addConstant: classification as: classificationId. |
661 |
606 |
662 compiler addOnLine: '(', classificationId, ' at: context peek asInteger)'. |
607 codeGen codeIf: '(', classificationId, ' at: context peek asInteger)' then: [ |
663 compiler indent. |
608 codeGen codeError: 'predicate not expected'. |
664 compiler add: ' ifTrue: ['. |
609 ] else: [ |
665 compiler codeError: 'predicate not expected'. |
610 codeGen codeReturn: 'nil'. |
666 compiler add: '] ifFalse: ['. |
611 ] |
667 compiler codeReturn: 'nil'. |
|
668 compiler add: '].'. |
|
669 compiler dedent. |
|
670 ! |
612 ! |
671 |
613 |
672 visitNotCharacterNode: node |
614 visitNotCharacterNode: node |
673 | chid | |
615 | chid | |
674 node character ppcPrintable ifTrue: [ |
616 node character ppcPrintable ifTrue: [ |
675 chid := node character storeString |
617 chid := node character storeString |
676 ] ifFalse: [ |
618 ] ifFalse: [ |
677 chid := compiler idFor: node character defaultName: #char. |
619 chid := codeGen idFor: node character defaultName: #char. |
678 compiler addConstant: (Character value: node character asInteger) as: chid . |
620 codeGen addConstant: (Character value: node character asInteger) as: chid . |
679 ]. |
621 ]. |
680 |
622 |
681 compiler add: '(context peek == ', chid, ')'. |
623 codeGen codeIf: '(context peek == ', chid, ')' then: [ |
682 compiler indent. |
624 codeGen codeError: node character asInteger asString, ' not expected'. |
683 compiler add: 'ifTrue: ['. |
625 ] else: [ |
684 compiler indent. |
626 codeGen codeReturn: 'nil.'. |
685 compiler codeError: node character asInteger asString, ' not expected'. |
627 ]. |
686 compiler dedent. |
|
687 compiler add: '] ifFalse: [ '. |
|
688 compiler indent. |
|
689 compiler codeReturn: 'nil.'. |
|
690 compiler dedent. |
|
691 compiler add: '].'. |
|
692 compiler dedent. |
|
693 ! |
628 ! |
694 |
629 |
695 visitNotLiteralNode: node |
630 visitNotLiteralNode: node |
696 | encodedLiteral size | |
631 | encodedLiteral size | |
697 encodedLiteral := node encodeQuotes: node literal. |
632 encodedLiteral := node encodeQuotes: node literal. |
698 size := node literal size asString. |
633 size := node literal size asString. |
699 |
634 |
700 compiler add: '((context peek: ', size, ') =#''', encodedLiteral, ''')'. |
635 codeGen codeIf: '((context peek: ', size, ') =#''', encodedLiteral, ''')' then: [ |
701 compiler indent. |
636 codeGen codeError: encodedLiteral, ' not expected'. |
702 compiler add: 'ifTrue: ['. |
637 ] else: [ |
703 compiler codeError: encodedLiteral, ' not expected'. |
638 codeGen codeReturn: 'nil' . |
704 compiler add: '] ifFalse: [ '. |
639 ] |
705 compiler codeReturn: 'nil' . |
|
706 compiler add: '].'. |
|
707 compiler dedent. |
|
708 ! |
640 ! |
709 |
641 |
710 visitNotMessagePredicateNode: node |
642 visitNotMessagePredicateNode: node |
711 compiler addOnLine: '(context peek ', node message, ')'. |
643 codeGen codeIf: '(context peek ', node message, ')' then: [ |
712 compiler indent. |
644 codeGen codeError: 'predicate not expected'. |
713 compiler add: ' ifTrue: [ '. |
645 ] else: [ |
714 compiler codeError: 'predicate not expected'. |
646 codeGen codeReturn: 'nil'. |
715 compiler add: '] ifFalse: ['. |
647 ] |
716 compiler codeReturn: 'nil'. |
|
717 compiler add: ' ].'. |
|
718 compiler dedent. |
|
719 ! |
648 ! |
720 |
649 |
721 visitNotNode: node |
650 visitNotNode: node |
722 | mementoVar | |
651 | mementoVar | |
723 |
652 |
724 mementoVar := compiler allocateTemporaryVariableNamed: 'memento'. |
653 mementoVar := codeGen allocateTemporaryVariableNamed: 'memento'. |
725 compiler smartRemember: node child to: mementoVar. |
654 codeGen remember: node child to: mementoVar. |
726 |
655 |
727 compiler codeAssignParsedValueOf:[ self visit:node child ] to:#whatever. |
656 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:#whatever. |
728 compiler smartRestore: node child from: mementoVar. |
657 codeGen restore: node child from: mementoVar. |
729 |
658 |
730 compiler add: '^ error ifFalse: [ self error ] ifTrue: [ self clearError. nil ]'. |
659 codeGen code: '^ error ifFalse: [ self error ] ifTrue: [ self clearError. nil ]'. |
731 |
660 |
732 "Modified: / 05-05-2015 / 14:29:52 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
661 "Modified: / 05-05-2015 / 14:29:52 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
733 ! |
662 ! |
734 |
663 |
735 visitOptionalNode: node |
664 visitOptionalNode: node |
736 compiler |
665 codeGen |
737 codeAssignParsedValueOf:[ self visit:node child ] |
666 codeEvaluateAndAssign:[ self visit:node child ] |
738 to:self retvalVar. |
667 to:self retvalVar. |
739 compiler add: 'error ifTrue: [ '. |
668 codeGen codeIf: 'error' then: [ |
740 compiler indent. |
669 codeGen codeClearError. |
741 compiler add: 'self clearError. '. |
670 codeGen codeAssign: 'nil.' to: self retvalVar. |
742 compiler codeAssign: 'nil.' to: self retvalVar. |
671 ]. |
743 compiler dedent. |
672 codeGen codeReturn. |
744 compiler add: '].'. |
|
745 compiler codeReturn. |
|
746 ! |
673 ! |
747 |
674 |
748 visitPluggableNode: node |
675 visitPluggableNode: node |
749 | blockId | |
676 | blockId | |
750 blockId := compiler idFor: node block defaultName: #pluggableBlock. |
677 blockId := codeGen idFor: node block defaultName: #pluggableBlock. |
751 |
678 |
752 compiler addConstant: node block as: blockId. |
679 codeGen addConstant: node block as: blockId. |
753 compiler codeReturn: blockId, ' value: context.'. |
680 codeGen codeReturn: blockId, ' value: context.'. |
754 ! |
681 ! |
755 |
682 |
756 visitPlusNode: node |
683 visitPlusNode: node |
757 | elementVar | |
684 | elementVar | |
758 |
685 |
759 elementVar := compiler allocateTemporaryVariableNamed: 'element'. |
686 elementVar := codeGen allocateTemporaryVariableNamed: 'element'. |
760 |
687 |
761 " self tokenGuards ifTrue: [ |
688 " self tokenGuards ifTrue: [ |
762 compiler codeTokenGuard: node ifFalse: [ compiler codeError: 'at least one occurence expected' ]. |
689 compiler codeTokenGuard: node ifFalse: [ compiler codeError: 'at least one occurence expected' ]. |
763 ]. |
690 ]. |
764 " |
691 " |
765 compiler codeAssign: 'OrderedCollection new.' to: self retvalVar. |
692 codeGen codeAssign: 'OrderedCollection new.' to: self retvalVar. |
766 compiler codeAssignParsedValueOf:[ self visit:node child ] to:elementVar. |
693 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:elementVar. |
767 |
694 |
768 compiler add: 'error ifTrue: ['. |
695 codeGen codeIf: 'error' then: [ |
769 compiler codeError: 'at least one occurence expected'. |
696 codeGen codeError: 'at least one occurence expected'. |
770 compiler add: '] ifFalse: ['. |
697 ] else: [ |
771 compiler indent. |
|
772 (self retvalVar ~~ #whatever) ifTrue:[ |
698 (self retvalVar ~~ #whatever) ifTrue:[ |
773 compiler add: self retvalVar , ' add: ',elementVar , '.'. |
699 codeGen code: self retvalVar , ' add: ',elementVar , '.'. |
774 ]. |
700 ]. |
775 compiler codeAssignParsedValueOf:[ self visit:node child ] to:elementVar. |
701 codeGen codeEvaluateAndAssignParsedValueOf:[ self visit:node child ] to:elementVar. |
776 compiler add: '[ error ] whileFalse: ['. |
702 codeGen code: '[ error ] whileFalse: ['. |
777 compiler indent. |
703 codeGen indent. |
778 (self retvalVar ~~ #whatever) ifTrue:[ |
704 (self retvalVar ~~ #whatever) ifTrue:[ |
779 compiler add: self retvalVar , ' add: ',elementVar , '.'. |
705 codeGen code: self retvalVar , ' add: ',elementVar , '.'. |
780 ]. |
706 ]. |
781 compiler codeAssignParsedValueOf:[ self visit:node child ] to:elementVar. |
707 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:elementVar. |
782 compiler dedent. |
708 codeGen dedent. |
783 compiler add: '].'. |
709 codeGen code: '].'. |
784 compiler add: 'self clearError.'. |
710 codeGen code: 'self clearError.'. |
711 |
|
785 (self retvalVar ~~ #whatever) ifTrue:[ |
712 (self retvalVar ~~ #whatever) ifTrue:[ |
786 compiler codeReturn: self retvalVar , ' asArray.'. |
713 codeGen codeReturn: self retvalVar , ' asArray.'. |
787 ]. |
714 ]. |
788 compiler dedent. |
715 ]. |
789 compiler add: '].'. |
|
790 |
|
791 "Modified: / 26-05-2015 / 19:04:27 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
716 "Modified: / 26-05-2015 / 19:04:27 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
792 ! |
717 ! |
793 |
718 |
794 visitPredicateNode: node |
719 visitPredicateNode: node |
795 | pid | |
720 | pid | |
796 pid := (compiler idFor: node predicate defaultName: #predicate). |
721 pid := (codeGen idFor: node predicate defaultName: #predicate). |
797 |
722 |
798 compiler addConstant: node predicate as: pid. |
723 codeGen addConstant: node predicate as: pid. |
799 |
724 |
800 compiler add: '(context atEnd not and: [ ', pid , ' value: context uncheckedPeek])'. |
725 codeGen codeIf: '(context atEnd not and: [ ', pid , ' value: context uncheckedPeek])' then: [ |
801 compiler indent. |
726 codeGen code: self retvalVar ,' := context next.'. |
802 compiler add: 'ifFalse: ['. |
727 ] else: [ |
803 compiler codeError: 'predicate not found'. |
728 codeGen codeError: 'predicate not found'. |
804 compiler add: '] ifTrue: [ ', self retvalVar ,' := context next ].'. |
729 ]. |
805 compiler dedent. |
730 codeGen codeReturn. |
806 compiler codeReturn. |
|
807 |
731 |
808 "Modified: / 23-04-2015 / 21:48:11 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
732 "Modified: / 23-04-2015 / 21:48:11 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
809 ! |
733 ! |
810 |
734 |
811 visitRecognizingSequenceNode: node |
735 visitRecognizingSequenceNode: node |
812 | mementoVar canBacktrack | |
736 | mementoVar canBacktrack | |
813 |
737 |
814 canBacktrack := (node children allButFirst allSatisfy: [:e | e acceptsEpsilon ]) not. |
738 canBacktrack := (node children allButFirst allSatisfy: [:e | e acceptsEpsilon ]) not. |
815 |
739 |
816 canBacktrack ifTrue: [ |
740 canBacktrack ifTrue: [ |
817 mementoVar := compiler allocateTemporaryVariableNamed: 'memento'. |
741 mementoVar := codeGen allocateTemporaryVariableNamed: 'memento'. |
818 compiler smartRemember: node to: mementoVar. |
742 codeGen remember: node to: mementoVar. |
819 ]. |
743 ]. |
820 |
744 |
821 compiler |
745 codeGen |
822 codeAssignParsedValueOf:[ self visit:(node children at:1) ] |
746 codeEvaluateAndAssign:[ self visit:(node children at:1) ] |
823 to:#whatever. |
747 to:#whatever. |
824 compiler add: 'error ifTrue: [ ^ failure ].'. |
748 codeGen code: 'error ifTrue: [ ^ failure ].'. |
825 |
749 |
826 2 to: (node children size) do: [ :idx | |child| |
750 2 to: (node children size) do: [ :idx | |child| |
827 child := node children at: idx. |
751 child := node children at: idx. |
828 compiler codeAssignParsedValueOf:[ self visit:child ] to:#whatever. |
752 codeGen codeEvaluateAndAssignParsedValueOf:[ self visit:child ] to:#whatever. |
829 |
753 |
830 child acceptsEpsilon ifFalse: [ |
754 child acceptsEpsilon ifFalse: [ |
831 compiler add: 'error ifTrue: [ '. |
755 codeGen codeIf: 'error' then: [ |
832 compiler indent. |
756 codeGen restore: node from: mementoVar. |
833 compiler smartRestore: node from: mementoVar. |
757 codeGen code: ' ^ failure .'. |
834 compiler add: ' ^ failure .'. |
758 ] |
835 compiler dedent. |
|
836 compiler add: '].'. |
|
837 ]. |
759 ]. |
838 ]. |
760 ]. |
839 ! |
761 ! |
840 |
762 |
841 visitSequenceNode: node |
763 visitSequenceNode: node |
842 |
764 |
843 | elementVars mementoVar canBacktrack | |
765 | elementVars mementoVar canBacktrack | |
844 |
766 |
845 elementVars := node preferredChildrenVariableNames. |
767 elementVars := node preferredChildrenVariableNames. |
846 elementVars do:[:e | |
768 elementVars do:[:e | |
847 compiler allocateTemporaryVariableNamed: e. |
769 codeGen allocateTemporaryVariableNamed: e. |
848 ]. |
770 ]. |
849 |
771 |
850 canBacktrack := (node children allButFirst allSatisfy: [:e | e acceptsEpsilon ]) not. |
772 canBacktrack := (node children allButFirst allSatisfy: [:e | e acceptsEpsilon ]) not. |
851 |
773 |
852 " self addGuardTrimming: node. |
774 " self addGuardTrimming: node. |
853 self addGuard: node ifTrue: nil ifFalse: [ compiler addOnLine: ' ^ self error' ]. |
775 self addGuard: node ifTrue: nil ifFalse: [ compiler addOnLine: ' ^ self error' ]. |
854 " |
776 " |
855 canBacktrack ifTrue: [ |
777 canBacktrack ifTrue: [ |
856 mementoVar := compiler allocateTemporaryVariableNamed: 'memento'. |
778 mementoVar := codeGen allocateTemporaryVariableNamed: 'memento'. |
857 compiler smartRemember: node to: mementoVar. |
779 codeGen remember: node to: mementoVar. |
858 ]. |
780 ]. |
859 |
781 |
860 node returnParsedObjectsAsCollection ifTrue:[ |
782 node returnParsedObjectsAsCollection ifTrue:[ |
861 compiler codeAssign: 'Array new: ', node children size asString, '.' to: self retvalVar. |
783 codeGen codeAssign: 'Array new: ', node children size asString, '.' to: self retvalVar. |
862 ]. |
784 ]. |
863 self generateSequenceChildOf: node atIndex: 1 useMememntoVar: mementoVar storeResultInto: elementVars. |
785 self generateSequenceChildOf: node atIndex: 1 useMememntoVar: mementoVar storeResultInto: elementVars. |
864 compiler codeReturn |
786 codeGen codeReturn |
865 |
787 |
866 "Modified (comment): / 16-06-2015 / 06:38:02 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
788 "Modified (comment): / 16-06-2015 / 06:38:02 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
867 ! |
789 ! |
868 |
790 |
869 visitStarAnyNode: node |
791 visitStarAnyNode: node |
870 | retvalVar sizeVar | |
792 | retvalVar sizeVar | |
871 |
793 |
872 retvalVar := self retvalVar. |
794 retvalVar := self retvalVar. |
873 sizeVar := compiler allocateTemporaryVariableNamed: 'size'. |
795 sizeVar := codeGen allocateTemporaryVariableNamed: 'size'. |
874 compiler add: sizeVar , ' := context size - context position.'. |
796 codeGen code: sizeVar , ' := context size - context position.'. |
875 compiler add: retvalVar,' := Array new: ',sizeVar,'.'. |
797 codeGen code: retvalVar,' := Array new: ',sizeVar,'.'. |
876 compiler add: '(1 to: ',sizeVar,') do: [ :e | ',retvalVar,' at: e put: context next ].'. |
798 codeGen code: '(1 to: ',sizeVar,') do: [ :e | ',retvalVar,' at: e put: context next ].'. |
877 compiler codeReturn. |
799 codeGen codeReturn. |
878 |
800 |
879 "Modified: / 15-06-2015 / 18:53:58 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
801 "Modified: / 15-06-2015 / 18:53:58 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
880 ! |
802 ! |
881 |
803 |
882 visitStarCharSetPredicateNode: node |
804 visitStarCharSetPredicateNode: node |
883 | classification classificationId | |
805 | classification classificationId | |
884 |
806 |
885 |
807 |
886 classification := node extendClassification: node predicate classification. |
808 classification := node extendClassification: node predicate classification. |
887 classificationId := compiler idFor: classification defaultName: #classification. |
809 classificationId := codeGen idFor: classification defaultName: #classification. |
888 compiler addConstant: classification as: classificationId. |
810 codeGen addConstant: classification as: classificationId. |
889 |
811 |
890 compiler codeAssign: 'OrderedCollection new.' to: self retvalVar. |
812 codeGen codeAssign: 'OrderedCollection new.' to: self retvalVar. |
891 compiler add: '[ ', classificationId, ' at: context peek asInteger ] whileTrue: ['. |
813 codeGen code: '[ ', classificationId, ' at: context peek asInteger ] whileTrue: ['. |
892 compiler indent. |
814 codeGen indent. |
893 compiler codeEvaluate: 'add:' argument: 'context next.' on: self retvalVar. |
815 codeGen codeEvaluate: 'add:' argument: 'context next.' on: self retvalVar. |
894 compiler dedent. |
816 codeGen dedent. |
895 compiler add: '].'. |
817 codeGen code: '].'. |
896 compiler codeAssign: self retvalVar, ' asArray.' to: self retvalVar. |
818 codeGen codeAssign: self retvalVar, ' asArray.' to: self retvalVar. |
897 compiler codeReturn. |
819 codeGen codeReturn. |
898 ! |
820 ! |
899 |
821 |
900 visitStarMessagePredicateNode: node |
822 visitStarMessagePredicateNode: node |
901 |
823 |
902 compiler codeAssign: 'OrderedCollection new.' to: self retvalVar. |
824 codeGen codeAssign: 'OrderedCollection new.' to: self retvalVar. |
903 compiler add: '[ context peek ', node message, ' ] whileTrue: ['. |
825 codeGen code: '[ context peek ', node message, ' ] whileTrue: ['. |
904 compiler indent. |
826 codeGen indent. |
905 compiler codeEvaluate: 'add:' argument: 'context next.' on: self retvalVar. |
827 codeGen codeEvaluate: 'add:' argument: 'context next.' on: self retvalVar. |
906 compiler dedent. |
828 codeGen dedent. |
907 compiler add: '].'. |
829 codeGen code: '].'. |
908 compiler codeAssign: self retvalVar, ' asArray.' to: self retvalVar. |
830 codeGen codeAssign: self retvalVar, ' asArray.' to: self retvalVar. |
909 compiler codeReturn. |
831 codeGen codeReturn. |
910 ! |
832 ! |
911 |
833 |
912 visitStarNode: node |
834 visitStarNode: node |
913 | elementVar | |
835 | elementVar | |
914 |
836 |
915 elementVar := compiler allocateTemporaryVariableNamed: 'element'. |
837 elementVar := codeGen allocateTemporaryVariableNamed: 'element'. |
916 |
838 codeGen codeAssign: 'OrderedCollection new.' to: self retvalVar. |
917 self addGuard: node child ifTrue: nil ifFalse: [ compiler codeReturn: '#()' ]. |
839 |
918 |
840 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:elementVar. |
919 compiler codeAssignParsedValueOf:[ self visit:node child ] to:elementVar. |
841 codeGen codeIf: 'error' then: [ |
920 compiler codeIf: 'error' |
842 codeGen codeClearError. |
921 then: [ |
843 codeGen codeReturn: self retvalVar, ' asArray.'. |
922 compiler codeClearError. |
844 ]. |
923 compiler codeReturn: '#()'. |
845 |
924 ] else: [ |
846 codeGen code: '[ error ] whileFalse: ['. |
925 compiler codeAssign: 'OrderedCollection new.' to: self retvalVar. |
847 codeGen indent. |
926 ]. |
848 codeGen code: self retvalVar, ' add: ', elementVar, '.'. |
927 |
849 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:elementVar. |
928 compiler add: '[ error ] whileFalse: ['. |
850 codeGen dedent. |
929 compiler indent. |
851 codeGen code: '].'. |
930 compiler add: self retvalVar, ' add: ', elementVar, '.'. |
852 codeGen codeClearError. |
931 compiler codeAssignParsedValueOf:[ self visit:node child ] to:elementVar. |
853 codeGen codeReturn: self retvalVar, ' asArray.'. |
932 compiler dedent. |
|
933 compiler add: '].'. |
|
934 compiler codeClearError. |
|
935 compiler codeReturn: self retvalVar, ' asArray.'. |
|
936 ! |
854 ! |
937 |
855 |
938 visitSymbolActionNode: node |
856 visitSymbolActionNode: node |
939 | elementVar | |
857 | elementVar | |
940 |
858 |
941 elementVar := compiler allocateTemporaryVariableNamed: 'element'. |
859 elementVar := codeGen allocateTemporaryVariableNamed: 'element'. |
942 compiler codeAssignParsedValueOf:[ self visit:node child ] to:elementVar. |
860 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:elementVar. |
943 compiler add: 'error ifFalse: [ '. |
861 codeGen codeIf: 'error' then: [ |
944 compiler codeReturn: elementVar, ' ', node block asString, '.'. |
862 codeGen codeReturn: 'failure' |
945 compiler add: '] ifTrue: ['. |
863 ] else: [ |
946 compiler codeReturn: 'failure'. |
864 codeGen codeReturn: elementVar, ' ', node block asString, '.'. |
947 compiler add: ']'. |
865 ] |
948 ! |
866 ! |
949 |
867 |
950 visitTokenActionNode: node |
868 visitTokenActionNode: node |
951 " |
869 " |
952 Actually, do nothing, we are in Token mode and the |
870 Actually, do nothing, we are in Token mode and the |
953 child does not return any result and token takes only |
871 child does not return any result and token takes only |
954 the input value. |
872 the input value. |
955 " |
873 " |
956 |
874 |
957 compiler add: '^ '. |
875 codeGen add: '^ '. |
958 compiler callOnLine: (node child compileWith: compiler). |
876 codeGen callOnLine: (node child compileWith: codeGen). |
959 ! |
877 ! |
960 |
878 |
961 visitTokenNode: node |
879 visitTokenNode: node |
962 | startVar endVar | |
880 | startVar endVar | |
963 startVar := compiler allocateTemporaryVariableNamed: 'start'. |
881 startVar := codeGen allocateTemporaryVariableNamed: 'start'. |
964 endVar := compiler allocateTemporaryVariableNamed: 'end'. |
882 endVar := codeGen allocateTemporaryVariableNamed: 'end'. |
965 |
883 |
966 compiler profileTokenRead: (compiler idFor: node). |
884 codeGen profileTokenRead: (codeGen idFor: node). |
967 |
885 |
968 compiler codeAssign: 'context position + 1.' to: startVar. |
886 codeGen codeAssign: 'context position + 1.' to: startVar. |
969 compiler codeAssignParsedValueOf:[ self visit:node child ] to:#whatever. |
887 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:#whatever. |
970 compiler add: 'error ifFalse: [ '. |
888 codeGen codeIf: 'error' then: nil else: [ |
971 compiler indent. |
889 codeGen codeAssign: 'context position.' to: endVar. |
972 compiler codeAssign: 'context position.' to: endVar. |
890 codeGen codeReturn: node tokenClass asString, ' on: (context collection) |
973 |
891 start: ', startVar, ' |
974 compiler codeReturn: node tokenClass asString, ' on: (context collection) |
892 stop: ', endVar, ' |
975 start: ', startVar, ' |
893 value: nil.'. |
976 stop: ', endVar, ' |
894 ] |
977 value: nil.'. |
|
978 compiler dedent. |
|
979 compiler add: '].'. |
|
980 ! |
895 ! |
981 |
896 |
982 visitTokenStarMessagePredicateNode: node |
897 visitTokenStarMessagePredicateNode: node |
983 |
898 |
984 compiler add: '[ context peek ', node message,' ] whileTrue: ['. |
899 codeGen code: '[ context peek ', node message,' ] whileTrue: ['. |
985 compiler indent. |
900 codeGen indent. |
986 compiler add: 'context next'. |
901 codeGen code: 'context next'. |
987 compiler indent. |
902 codeGen indent. |
988 compiler dedent. |
903 codeGen dedent. |
989 compiler add: '].'. |
904 codeGen code: '].'. |
990 ! |
905 ! |
991 |
906 |
992 visitTokenStarSeparatorNode: node |
907 visitTokenStarSeparatorNode: node |
993 |
908 |
994 compiler add: 'context skipSeparators.'. |
909 codeGen code: 'context skipSeparators.'. |
995 ! |
910 ! |
996 |
911 |
997 visitTokenWhitespaceNode: node |
912 visitTokenWhitespaceNode: node |
998 compiler codeAssignParsedValueOf:[ self visit:node child ] to:#whatever. |
913 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:#whatever. |
999 compiler codeReturn. |
914 codeGen codeReturn. |
1000 ! |
915 ! |
1001 |
916 |
1002 visitTrimNode: node |
917 visitTrimNode: node |
1003 | mementoVar | |
918 | mementoVar | |
1004 "TODO: This ignores the TrimmingParser trimmer object!!" |
919 "TODO: This ignores the TrimmingParser trimmer object!!" |
1005 |
920 |
1006 mementoVar := compiler allocateTemporaryVariableNamed: 'memento'. |
921 mementoVar := codeGen allocateTemporaryVariableNamed: 'memento'. |
1007 |
922 |
1008 compiler smartRemember: node child to: mementoVar. |
923 codeGen remember: node child to: mementoVar. |
1009 compiler add: 'context skipSeparators.'. |
924 codeGen code: 'context skipSeparators.'. |
1010 |
925 |
1011 compiler |
926 codeGen |
1012 codeAssignParsedValueOf:[ self visit:node child ] |
927 codeEvaluateAndAssign:[ self visit:node child ] |
1013 to:self retvalVar. |
928 to:self retvalVar. |
1014 |
929 |
1015 compiler add: 'error ifTrue: [ '. |
930 codeGen codeIf: 'error' then: [ |
1016 compiler indent. |
931 codeGen restore: node child from: mementoVar. |
1017 compiler smartRestore: node child from: mementoVar. |
932 codeGen codeReturn. |
1018 compiler codeReturn. |
933 ] else: [ |
1019 compiler dedent. |
934 codeGen code: 'context skipSeparators.'. |
1020 compiler add: '] ifFalse: [' . |
935 codeGen codeReturn. |
1021 compiler indent. |
936 ] |
1022 compiler add: 'context skipSeparators.'. |
|
1023 compiler codeReturn. |
|
1024 compiler dedent. |
|
1025 compiler add: '].'. |
|
1026 ! |
937 ! |
1027 |
938 |
1028 visitTrimmingTokenCharacterNode: node |
939 visitTrimmingTokenCharacterNode: node |
1029 ^ self visitTrimmingTokenNode: node |
940 ^ self visitTrimmingTokenNode: node |
1030 ! |
941 ! |
1031 |
942 |
1032 visitTrimmingTokenNode: node |
943 visitTrimmingTokenNode: node |
1033 | id guard startVar endVar | |
944 | id guard startVar endVar | |
1034 |
945 |
1035 startVar := compiler allocateTemporaryVariableNamed: 'start'. |
946 startVar := codeGen allocateTemporaryVariableNamed: 'start'. |
1036 endVar := compiler allocateTemporaryVariableNamed: 'end'. |
947 endVar := codeGen allocateTemporaryVariableNamed: 'end'. |
1037 |
948 |
1038 id := compiler idFor: node. |
949 id := codeGen idFor: node. |
1039 compiler profileTokenRead: id. |
950 codeGen profileTokenRead: id. |
1040 |
951 |
1041 self compileTokenWhitespace: node. |
952 self compileTokenWhitespace: node. |
1042 |
953 |
1043 (arguments guards and: [(guard := PPCGuard on: node) makesSense]) ifTrue: [ |
954 (arguments guards and: [(guard := PPCGuard on: node) makesSense]) ifTrue: [ |
1044 guard id: id, '_guard'. |
955 guard id: id, '_guard'. |
1045 compiler add: 'context atEnd ifTrue: [ self error ].'. |
956 codeGen code: 'context atEnd ifTrue: [ self error ].'. |
1046 guard compileGuard: compiler. |
957 guard compileGuard: codeGen. |
1047 compiler addOnLine: 'ifFalse: [ self error ].'. |
958 codeGen codeOnLine: 'ifFalse: [ self error ].'. |
1048 compiler add: 'error ifFalse: ['. |
959 codeGen code: 'error ifFalse: ['. |
1049 compiler indent. |
960 codeGen indent. |
1050 ]. |
961 ]. |
1051 |
962 |
1052 compiler codeAssign: 'context position + 1.' to: startVar. |
963 codeGen codeAssign: 'context position + 1.' to: startVar. |
1053 compiler codeAssignParsedValueOf:[ self visit:node child ] to:#whatever. |
964 codeGen codeEvaluateAndAssign:[ self visit:node child ] to:#whatever. |
1054 |
965 |
1055 (arguments guards and: [(guard := PPCGuard on: node) makesSense]) ifTrue: [ |
966 (arguments guards and: [(guard := PPCGuard on: node) makesSense]) ifTrue: [ |
1056 compiler dedent. |
967 codeGen dedent. |
1057 compiler add: '].'. |
968 codeGen code: '].'. |
1058 ]. |
969 ]. |
1059 |
970 |
1060 compiler add: 'error ifFalse: [ '. |
971 codeGen codeIf: 'error' then: nil else: [ |
1061 compiler indent. |
972 codeGen codeAssign: 'context position.' to: endVar. |
1062 compiler codeAssign: 'context position.' to: endVar. |
973 " self compileSecondWhitespace: compiler." |
1063 |
974 self compileTokenWhitespace: node. |
1064 " self compileSecondWhitespace: compiler." |
975 |
1065 self compileTokenWhitespace: node. |
976 codeGen codeReturn: node tokenClass asString, ' on: (context collection) |
1066 |
977 start: ', startVar, ' |
1067 compiler codeReturn: node tokenClass asString, ' on: (context collection) |
978 stop: ', endVar, ' |
1068 start: ', startVar, ' |
979 value: nil'. |
1069 stop: ', endVar, ' |
980 ] |
1070 value: nil'. |
|
1071 compiler dedent. |
|
1072 compiler add: '].' |
|
1073 ! |
981 ! |
1074 |
982 |
1075 visitUnknownNode: node |
983 visitUnknownNode: node |
1076 | compiledChild compiledParser id | |
984 | compiledChild compiledParser id | |
1077 |
985 |
1078 id := compiler idFor: node. |
986 id := codeGen idFor: node. |
1079 |
987 |
1080 compiledParser := node parser copy. |
988 compiledParser := node parser copy. |
1081 "Compile all the children and call compiled version of them instead of the original one" |
989 "Compile all the children and call compiled version of them instead of the original one" |
1082 compiledParser children do: [ :child | |
990 compiledParser children do: [ :child | |
1083 compiledChild := self visit: child. |
991 compiledChild := self visit: child. |
1084 compiledParser replace: child with: compiledChild bridge. |
992 compiledParser replace: child with: compiledChild bridge. |
1085 ]. |
993 ]. |
1086 |
994 |
1087 compiler addConstant: compiledParser as: id. |
995 codeGen addConstant: compiledParser as: id. |
1088 |
996 |
1089 compiler codeClearError. |
997 codeGen codeClearError. |
1090 compiler add: '(', self retvalVar, ' := ', id, ' parseOn: context) isPetitFailure'. |
998 codeGen codeIf: '(', self retvalVar, ' := ', id, ' parseOn: context) isPetitFailure' then: [ |
1091 compiler indent. |
999 codeGen codeError: 'self error: ', self retvalVar at: self retvalVar, ' position .'. |
1092 compiler add: ' ifTrue: [self error: ', self retvalVar, ' message at: ', self retvalVar, ' position ].'. |
1000 ]. |
1093 compiler dedent. |
1001 codeGen code: 'error := ', self retvalVar, ' isPetitFailure.'. |
1094 compiler add: 'error := ', self retvalVar, ' isPetitFailure.'. |
1002 codeGen codeReturn. |
1095 compiler codeReturn. |
|
1096 |
1003 |
1097 "Modified: / 15-06-2015 / 17:59:23 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
1004 "Modified: / 15-06-2015 / 17:59:23 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
1098 ! ! |
1005 ! ! |
1099 |
1006 |