author | Claus Gittinger <cg@exept.de> |
Thu, 21 Mar 1996 16:19:27 +0100 | |
changeset 231 | 168d581377a2 |
parent 212 | ff39051e219f |
child 245 | 8a78aa886351 |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
47 | 3 |
All Rights Reserved |
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|
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
|
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be provided or otherwise made available to, or used by, any |
|
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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||
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ParseNode subclass:#MessageNode |
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instanceVariableNames:'receiver selector argArray lineNr' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'System-Compiler-Support' |
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! |
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||
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!MessageNode class methodsFor:'documentation'! |
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||
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copyright |
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" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
|
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All Rights Reserved |
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|
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This software is furnished under a license and may be used |
|
28 |
only in accordance with the terms of that license and with the |
|
29 |
inclusion of the above copyright notice. This software may not |
|
30 |
be provided or otherwise made available to, or used by, any |
|
31 |
other person. No title to or ownership of the software is |
|
32 |
hereby transferred. |
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" |
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! |
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||
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documentation |
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" |
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node for parse-trees, representing message sends |
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" |
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! ! |
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!MessageNode class methodsFor:'instance creation'! |
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||
44 |
receiver:recNode selector:selectorString |
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^ (self basicNew) receiver:recNode selector:selectorString args:nil lineno:0 |
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! |
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||
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receiver:recNode selector:selectorString arg1:argNode1 arg2:argNode2 fold:folding |
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|result recVal argVal selector| |
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" |
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This is just a demonstration - of how complex constants can be folded. |
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This was inspired by some discussion in c.l.s about enhancing the language - I prefer |
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enhancing the compiler .... |
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The following optimization will convert '#(...) with:#(...) collect:[...]' into an array constant, |
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allowing constant arrays of complex objects. |
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Notice: this method is normally disabled - its just a demo after all. |
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" |
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folding notNil ifTrue:[ |
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"/ |
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"/ do constant folding ... |
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"/ |
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(recNode isConstant and:[argNode1 isConstant]) ifTrue:[ |
65 |
"check if we can do it ..." |
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selector := selectorString asSymbolIfInterned. |
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selector notNil ifTrue:[ |
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recVal := recNode evaluate. |
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(recVal respondsTo:selector) ifTrue:[ |
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" |
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we could do much more here - but then, we need a dependency from |
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the folded selectors method to the method we generate code for ... |
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limit optimizations to those that will never change |
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(or - if you change them - you will crash so bad ...) |
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" |
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argVal := argNode1 evaluate. |
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((recVal isMemberOf:Array) and:[argVal isMemberOf:Array]) ifTrue:[ |
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folding == #full ifTrue:[ |
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(selector == #with:collect:) ifTrue:[ |
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(argNode2 isMemberOf:BlockNode) ifTrue:[ |
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SignalSet anySignal handle:[:ex | |
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^ 'error in constant expression (' , ex errorString , ')' |
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] do:[ |
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result := recVal perform:selector with:argVal with:(argNode2 evaluate). |
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]. |
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^ ConstantNode type:(ConstantNode typeOfConstant:result) value:result |
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] |
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] |
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] |
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] |
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] |
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] |
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] |
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]. |
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^ (self basicNew) receiver:recNode selector:selectorString args:(Array with:argNode1 with:argNode2) lineno:0 |
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! |
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||
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receiver:recNode selector:selectorString arg:argNode |
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^ self receiver:recNode selector:selectorString arg:argNode fold:nil |
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! |
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||
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receiver:recNode selector:selectorString arg:argNode fold:folding |
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|result recVal argVal selector globalName canFold| |
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" |
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The constant folding code can usually not optimize much |
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- this may change when some kind of constant/macro declaration is added to smalltalk. |
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" |
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folding notNil ifTrue:[ |
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selector := selectorString asSymbolIfInterned. |
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selector notNil ifTrue:[ |
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|
112 |
|
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"/ |
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|
114 |
"/ do constant folding ... |
ff39051e219f
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parents:
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"/ |
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canFold := false. |
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|
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(recNode isGlobal and:[argNode isConstant]) ifTrue:[ |
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globalName := recNode name. |
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recVal := recNode evaluate. |
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121 |
|
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(globalName = 'SmallInteger') ifTrue:[ |
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123 |
( #( bitMaskFor: ) includes:selector) |
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ifTrue:[ |
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canFold := true |
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] |
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]. |
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128 |
(globalName = 'Float') ifTrue:[ |
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129 |
( #( pi unity zero ) includes:selector) |
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130 |
ifTrue:[ |
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(recVal respondsTo:selector) ifTrue:[ |
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132 |
canFold := true |
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133 |
] |
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134 |
] |
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135 |
] |
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136 |
]. |
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137 |
|
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138 |
(recNode isConstant and:[argNode isConstant]) ifTrue:[ |
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139 |
"check if we can do it ..." |
47 | 140 |
recVal := recNode evaluate. |
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141 |
" |
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|
142 |
we could do much more here - but then, we need a dependency from |
ff39051e219f
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parents:
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diff
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|
143 |
the folded selectors method to the method we generate code for ... |
ff39051e219f
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parents:
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diff
changeset
|
144 |
limit optimizations to those that will never change |
ff39051e219f
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parents:
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|
145 |
(or - if you change them - you will crash so bad ...) |
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|
146 |
" |
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147 |
argVal := argNode evaluate. |
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148 |
(recVal respondsToArithmetic and:[argVal respondsToArithmetic]) ifTrue:[ |
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149 |
( #( + - * / // \\ min: max: quo:) includes:selector) ifTrue:[ |
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150 |
(#( / // \\ ) includes:selector) ifTrue:[ |
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151 |
argVal = 0 ifTrue:[ |
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152 |
^ 'division by zero in constant expression' |
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153 |
]. |
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|
154 |
]. |
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155 |
canFold := true |
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156 |
]. |
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|
157 |
( #( @ ) includes:selector) ifTrue:[ |
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158 |
canFold := (folding == #full) |
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|
159 |
] |
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160 |
]. |
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161 |
(recVal isMemberOf:String) ifTrue:[ |
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162 |
(argVal isInteger and:[selector == #at:]) ifTrue:[ |
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canFold := (folding >= #level2) or:[folding == #full]. |
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164 |
]. |
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165 |
((argVal isMemberOf:String) and:[selector == #',']) ifTrue:[ |
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166 |
canFold := (folding >= #level2) or:[folding == #full]. |
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167 |
] |
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168 |
]. |
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|
169 |
]. |
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|
170 |
|
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|
171 |
canFold ifTrue:[ |
47 | 172 |
(recVal respondsTo:selector) ifTrue:[ |
212
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|
173 |
SignalSet anySignal handle:[:ex | |
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|
174 |
^ 'error in constant expression (' , ex errorString , ')' |
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|
175 |
] do:[ |
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176 |
result := recVal perform:selector with:argVal. |
47 | 177 |
]. |
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|
178 |
^ ConstantNode type:(ConstantNode typeOfConstant:result) value:result |
47 | 179 |
] |
180 |
] |
|
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|
181 |
] |
0 | 182 |
]. |
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|
183 |
|
0 | 184 |
^ (self basicNew) receiver:recNode selector:selectorString args:(Array with:argNode) lineno:0 |
185 |
! |
|
186 |
||
187 |
receiver:recNode selector:selectorString args:anArray |
|
212
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188 |
^ self receiver:recNode selector:selectorString args:anArray fold:nil |
0 | 189 |
! |
190 |
||
191 |
receiver:recNode selector:selectorString args:argArray fold:folding |
|
117 | 192 |
|numArgs| |
193 |
||
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|
194 |
folding notNil ifTrue:[ |
231 | 195 |
numArgs := argArray size. |
196 |
(numArgs == 1) ifTrue:[ |
|
197 |
^ self receiver:recNode selector:selectorString arg:(argArray at:1) fold:folding |
|
198 |
]. |
|
20 | 199 |
|
231 | 200 |
"uncomment the follwoing for a nice array initializer optimization ..." |
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201 |
(numArgs == 2) ifTrue:[ |
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202 |
^ self receiver:recNode selector:selectorString arg1:(argArray at:1) arg2:(argArray at:2) fold:folding |
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203 |
]. |
231 | 204 |
numArgs > Method maxNumberOfArguments ifTrue:[ |
205 |
^ 'too many arguments for current VM implementation'. |
|
206 |
]. |
|
0 | 207 |
]. |
117 | 208 |
|
0 | 209 |
^ (self basicNew) receiver:recNode selector:selectorString args:argArray lineno:0 |
117 | 210 |
|
211 |
"Modified: 3.9.1995 / 16:41:39 / claus" |
|
231 | 212 |
"Modified: 21.3.1996 / 16:07:34 / cg" |
0 | 213 |
! ! |
214 |
||
140 | 215 |
!MessageNode methodsFor:'accessing'! |
0 | 216 |
|
140 | 217 |
arg1 |
218 |
^ argArray at:1 |
|
219 |
! |
|
0 | 220 |
|
140 | 221 |
args |
222 |
^ argArray |
|
223 |
! |
|
0 | 224 |
|
140 | 225 |
lineNumber |
226 |
^ lineNr |
|
0 | 227 |
! |
228 |
||
140 | 229 |
lineNumber:num |
230 |
lineNr := num |
|
231 |
! |
|
0 | 232 |
|
140 | 233 |
receiver |
234 |
^ receiver |
|
235 |
! |
|
0 | 236 |
|
140 | 237 |
receiver:r selector:s args:a lineno:l |
238 |
receiver := r. |
|
239 |
selector := s asSymbol. |
|
240 |
argArray := a. |
|
241 |
lineNr := l |
|
242 |
! |
|
243 |
||
244 |
selector |
|
245 |
^ selector |
|
0 | 246 |
! ! |
247 |
||
248 |
!MessageNode methodsFor:'checks'! |
|
249 |
||
250 |
plausibilityCheck |
|
251 |
|rec arg operand| |
|
252 |
||
3 | 253 |
" |
254 |
it once took me almost an hour, to find a '==' which |
|
255 |
should have been an '=' (you cannot compare floats with ==) |
|
19 | 256 |
(well, I looked at the '==' at least 50 times - |
257 |
- but didn't think about it ...). |
|
258 |
thats reason enough to add this check here. |
|
259 |
I will add more as heuristic knowledge increases ... |
|
260 |
(send me comments on common programming errors ...) |
|
261 |
" |
|
262 |
||
263 |
" |
|
264 |
check #== appled to Floats, Strings or Fractions |
|
0 | 265 |
" |
266 |
((selector == #==) or:[selector == #~~]) ifTrue:[ |
|
47 | 267 |
receiver isConstant ifTrue:[ |
268 |
rec := receiver evaluate. |
|
269 |
((rec isMemberOf:String) or:[ |
|
270 |
(rec isMemberOf:Float) or:[ |
|
271 |
(rec isMemberOf:Fraction)]]) ifTrue:[ |
|
272 |
operand := rec |
|
273 |
]. |
|
274 |
]. |
|
275 |
(argArray at:1) isConstant ifTrue:[ |
|
276 |
arg := (argArray at:1) evaluate. |
|
277 |
((arg isMemberOf:String) or:[ |
|
278 |
(arg isMemberOf:Float) or:[ |
|
279 |
(arg isMemberOf:Fraction)]]) ifTrue:[ |
|
280 |
operand := arg |
|
281 |
]. |
|
282 |
]. |
|
283 |
operand notNil ifTrue:[ |
|
284 |
(selector == #==) ifTrue:[ |
|
285 |
^ 'identity compare is unsafe here' |
|
286 |
]. |
|
287 |
^ 'identity compare will usually return true here' |
|
288 |
] |
|
0 | 289 |
]. |
3 | 290 |
|
291 |
" |
|
19 | 292 |
[...] ifTrue:... |
3 | 293 |
an error often occuring when you are a beginner ... |
294 |
" |
|
295 |
((selector == #ifTrue:) or:[selector == #ifFalse:]) ifTrue:[ |
|
47 | 296 |
receiver isBlock ifTrue:[ |
297 |
(Block canUnderstand:selector) ifFalse:[ |
|
298 |
^ 'blocks usually do not respond to ' , selector , ' messages' |
|
299 |
]. |
|
300 |
]. |
|
301 |
(argArray at:1) isBlock ifFalse:[ |
|
302 |
^ 'will fail at runtime, if argument to ' , selector , ' does not evaluate to a block' |
|
303 |
] |
|
3 | 304 |
]. |
19 | 305 |
((selector == #ifTrue:ifFalse:) or:[selector == #ifFalse:ifTrue:]) ifTrue:[ |
47 | 306 |
receiver isBlock ifTrue:[ |
307 |
(Block canUnderstand:selector) ifFalse:[ |
|
308 |
^ 'blocks usually do not respond to ' , selector , ' messages' |
|
309 |
]. |
|
310 |
]. |
|
311 |
(argArray at:1) isBlock ifFalse:[ |
|
312 |
^ 'will fail at runtime, if 1st. argument to ' , selector , ' does not evaluate to a block' |
|
313 |
]. |
|
314 |
(argArray at:2) isBlock ifFalse:[ |
|
315 |
^ 'will fail at runtime, if 2nd. argument to ' , selector , ' does not evaluate to a block' |
|
316 |
] |
|
3 | 317 |
]. |
19 | 318 |
|
319 |
" |
|
320 |
(...) whileTrue:[ |
|
321 |
" |
|
3 | 322 |
((selector == #whileTrue:) or:[selector == #whileFalse:]) ifTrue:[ |
47 | 323 |
receiver isBlock ifFalse:[ |
324 |
" |
|
325 |
only warn, if code was originally parenthized |
|
326 |
" |
|
327 |
receiver parenthized ifTrue:[ |
|
328 |
^ 'will fail at runtime, if receiver of ' , selector , ' does not evaluate to a block' |
|
329 |
] |
|
330 |
]. |
|
331 |
(argArray at:1) isBlock ifFalse:[ |
|
332 |
^ 'will fail at runtime, if argument to ' , selector , ' does not evaluate to a block' |
|
333 |
]. |
|
3 | 334 |
]. |
0 | 335 |
^ nil |
336 |
! ! |
|
337 |
||
338 |
!MessageNode methodsFor:'code generation'! |
|
339 |
||
106 | 340 |
XXcodeWhileOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
341 |
"generate code for [...] whilexxx:[ ... ]" |
|
342 |
||
343 |
|pos pos2 theReceiver theArg theByteCode optByteCode| |
|
344 |
||
345 |
(selector == #whileTrue:) ifTrue:[ |
|
47 | 346 |
theByteCode := #falseJump |
0 | 347 |
] ifFalse:[ |
47 | 348 |
theByteCode := #trueJump |
0 | 349 |
]. |
350 |
||
351 |
theReceiver := receiver. |
|
352 |
optByteCode := self optimizedConditionFor:theReceiver with:theByteCode. |
|
353 |
optByteCode notNil ifTrue:[ |
|
47 | 354 |
((optByteCode == #eqJump) or:[optByteCode == #notEqJump]) ifTrue:[ |
355 |
theArg := receiver statements expression arg1 |
|
356 |
]. |
|
357 |
theReceiver := receiver statements expression receiver. |
|
358 |
theByteCode := optByteCode |
|
0 | 359 |
]. |
360 |
||
361 |
valueNeeded ifTrue:[aStream nextPut:#pushNil]. |
|
362 |
pos := aStream position. |
|
363 |
optByteCode notNil ifTrue:[ |
|
104 | 364 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
47 | 365 |
theArg notNil ifTrue:[ |
104 | 366 |
theArg codeOn:aStream inBlock:b for:aCompiler |
47 | 367 |
] |
0 | 368 |
] ifFalse:[ |
104 | 369 |
theReceiver codeInlineOn:aStream inBlock:b for:aCompiler |
0 | 370 |
]. |
53 | 371 |
|
372 |
(lineNr between:1 and:255) ifTrue:[ |
|
95 | 373 |
aStream nextPut:#lineno; nextPut:lineNr. |
53 | 374 |
]. |
375 |
||
0 | 376 |
aStream nextPut:theByteCode. |
377 |
pos2 := aStream position. |
|
378 |
aStream nextPut:0. |
|
379 |
valueNeeded ifTrue:[aStream nextPut:#drop]. |
|
104 | 380 |
(argArray at:1) codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
95 | 381 |
aStream nextPut:#jump; nextPut:pos. |
106 | 382 |
(aStream contents) at:pos2 put:(aStream position). |
0 | 383 |
! |
384 |
||
140 | 385 |
codeAndIfOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
386 |
"generate code for (x and:[y]) ifxxx:[ ... ]" |
|
387 |
||
388 |
|theByteCode optByteCode theReceiver theArg pos1 pos2 pos3 code here jmp| |
|
389 |
||
390 |
||
391 |
theByteCode := #falseJump. |
|
392 |
theReceiver := receiver receiver. |
|
0 | 393 |
|
140 | 394 |
optByteCode := self optimizedConditionFor:theReceiver |
395 |
with:theByteCode. |
|
396 |
optByteCode notNil ifTrue:[ |
|
397 |
((optByteCode == #eqJump) or:[optByteCode == #notEqJump]) ifTrue:[ |
|
398 |
theArg := theReceiver arg1 |
|
399 |
]. |
|
400 |
theReceiver := theReceiver receiver. |
|
401 |
theByteCode := optByteCode |
|
402 |
]. |
|
104 | 403 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
140 | 404 |
theArg notNil ifTrue:[ |
405 |
theArg codeOn:aStream inBlock:b for:aCompiler |
|
406 |
]. |
|
407 |
aStream nextPut:theByteCode. |
|
408 |
pos1 := aStream position. |
|
409 |
aStream nextPut:0. |
|
0 | 410 |
|
140 | 411 |
theReceiver := receiver arg1. |
412 |
theReceiver codeInlineOn:aStream inBlock:b for:aCompiler. |
|
413 |
(selector == #ifTrue:) ifTrue:[ |
|
414 |
jmp := #falseJump |
|
415 |
] ifFalse:[ |
|
416 |
jmp := #trueJump |
|
417 |
]. |
|
418 |
aStream nextPut:jmp. |
|
0 | 419 |
pos2 := aStream position. |
420 |
aStream nextPut:0. |
|
421 |
||
140 | 422 |
code := aStream contents. |
423 |
(selector == #ifFalse:) ifTrue:[ |
|
424 |
code at:pos1 put:(aStream position) |
|
425 |
]. |
|
426 |
(argArray at: 1) codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
|
427 |
||
428 |
valueNeeded ifTrue:[ |
|
429 |
aStream nextPut:#jump. |
|
430 |
pos3 := aStream position. |
|
431 |
aStream nextPut:0. |
|
432 |
here := aStream position. |
|
433 |
(selector == #ifTrue:) ifTrue:[ |
|
434 |
code at:pos1 put:here |
|
435 |
]. |
|
436 |
code at:pos2 put:here. |
|
437 |
aStream nextPut:#pushNil. |
|
438 |
code at:pos3 put:(aStream position) |
|
439 |
] ifFalse:[ |
|
440 |
here := aStream position. |
|
441 |
(selector == #ifTrue:) ifTrue:[ |
|
442 |
code at:pos1 put:here |
|
443 |
]. |
|
444 |
code at:pos2 put:here |
|
445 |
] |
|
446 |
! |
|
447 |
||
448 |
codeAndOrOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
|
449 |
"generate code for x and/or:[y] - but not in an if" |
|
450 |
||
451 |
|pos theReceiver theByteCode| |
|
452 |
||
163 | 453 |
self halt:'not yet implemented'. |
140 | 454 |
theReceiver := receiver. |
455 |
(selector == #and:) ifTrue:[ |
|
186 | 456 |
theByteCode := #falseJump |
140 | 457 |
] ifFalse:[ |
186 | 458 |
theByteCode := #trueJump |
140 | 459 |
]. |
460 |
" |
|
461 |
(self canOptimizeConditionFor:receiver) ifTrue:[ |
|
186 | 462 |
theByteCode := self optimizedConditionFor:theReceiver |
463 |
with:theByteCode. |
|
464 |
theReceiver := theReceiver receiver |
|
140 | 465 |
]. |
466 |
" |
|
467 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
|
468 |
aStream nextPut:theByteCode. |
|
469 |
pos := aStream position. |
|
470 |
aStream nextPut:0. |
|
471 |
(argArray at: 1) codeInlineOn:aStream inBlock:b for:aCompiler. |
|
472 |
(aStream contents) at:pos put:(aStream position). |
|
473 |
valueNeeded ifFalse:[aStream nextPut:#drop] |
|
163 | 474 |
|
475 |
"Created: 9.12.1995 / 23:05:52 / cg" |
|
140 | 476 |
! |
477 |
||
478 |
codeForCascadeOn:aStream inBlock:b for:aCompiler |
|
479 |
"like codeOn, but always leave the receiver instead of the result" |
|
480 |
||
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
481 |
|nargs isBuiltIn code codeL litIndex cls clsLitIndex| |
140 | 482 |
|
483 |
argArray isNil ifTrue:[ |
|
484 |
nargs := 0 |
|
485 |
] ifFalse:[ |
|
486 |
nargs := argArray size |
|
487 |
]. |
|
488 |
||
489 |
isBuiltIn := false. |
|
0 | 490 |
|
140 | 491 |
(nargs == 0) ifTrue:[ |
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
492 |
isBuiltIn := aCompiler isBuiltInUnarySelector:selector |
140 | 493 |
]. |
494 |
(nargs == 1) ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
495 |
isBuiltIn := aCompiler isBuiltIn1ArgSelector:selector |
140 | 496 |
]. |
497 |
(nargs == 2) ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
498 |
isBuiltIn := aCompiler isBuiltIn2ArgSelector:selector |
140 | 499 |
]. |
500 |
||
501 |
receiver codeOn:aStream inBlock:b for:aCompiler. |
|
502 |
aStream nextPut:#dup. |
|
503 |
||
504 |
"can we use a send-bytecode ?" |
|
505 |
isBuiltIn ifTrue:[ |
|
506 |
receiver isSuper ifFalse:[ |
|
507 |
(nargs > 0) ifTrue:[ |
|
508 |
(argArray at:1) codeOn:aStream inBlock:b for:aCompiler. |
|
509 |
(nargs > 1) ifTrue:[ |
|
510 |
(argArray at:2) codeOn:aStream inBlock:b for:aCompiler |
|
511 |
] |
|
512 |
]. |
|
513 |
aStream nextPut:selector. |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
514 |
(aCompiler hasLineNumber:selector) ifTrue:[ |
140 | 515 |
aStream nextPut:lineNr. |
516 |
]. |
|
517 |
aStream nextPut:#drop. |
|
518 |
^ self |
|
519 |
] |
|
520 |
]. |
|
521 |
||
522 |
"no - generate a send" |
|
523 |
argArray notNil ifTrue:[ |
|
524 |
argArray do:[:arg | |
|
525 |
arg codeOn:aStream inBlock:b for:aCompiler |
|
526 |
] |
|
527 |
]. |
|
528 |
litIndex := aCompiler addLiteral:selector. |
|
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
529 |
|
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
530 |
receiver isSuper ifTrue:[ |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
531 |
cls := aCompiler targetClass. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
532 |
receiver isHere ifTrue:[ |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
533 |
code := #hereSend. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
534 |
codeL := #hereSendL. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
535 |
] ifFalse:[ |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
536 |
code := #superSend. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
537 |
codeL := #superSendL. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
538 |
cls := cls superclass. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
539 |
]. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
540 |
clsLitIndex := aCompiler addLiteral:cls. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
541 |
|
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
542 |
(litIndex <= 255 and:[clsLitIndex <= 255]) ifTrue:[ |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
543 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:nargs; nextPut:clsLitIndex; nextPut:#drop. |
140 | 544 |
^ self |
545 |
]. |
|
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
546 |
|
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
547 |
"need 16bit litIndex" |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
548 |
aStream nextPut:codeL; nextPut:lineNr; nextPut:litIndex; nextPut:0; nextPut:nargs; nextPut:clsLitIndex; nextPut:0; nextPut:#drop. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
549 |
^ self |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
550 |
]. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
551 |
|
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
552 |
litIndex <= 255 ifTrue:[ |
140 | 553 |
(nargs <= 3) ifTrue:[ |
554 |
code := #(sendDrop0 sendDrop1 sendDrop2 sendDrop3) at:(nargs+1). |
|
555 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex. |
|
556 |
^ self |
|
557 |
]. |
|
558 |
||
559 |
aStream nextPut:#sendDrop; nextPut:lineNr; nextPut:litIndex; nextPut:nargs. |
|
560 |
^ self |
|
561 |
]. |
|
562 |
"need 16bit litIndex" |
|
563 |
aStream nextPut:#sendDropL; nextPut:lineNr; nextPut:litIndex; nextPut:0; nextPut:nargs |
|
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
564 |
|
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
565 |
"Modified: 11.1.1996 / 16:51:40 / cg" |
140 | 566 |
! |
567 |
||
568 |
codeForSideEffectOn:aStream inBlock:b for:aCompiler |
|
569 |
self codeOn:aStream inBlock:b valueNeeded:false for:aCompiler |
|
0 | 570 |
! |
571 |
||
104 | 572 |
codeIfElseOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
0 | 573 |
"generate code for x ifxxx:[ ... ] yyy:[ ...]" |
574 |
||
166
9f6c57a3bce1
no line number bytecode in if-else if not needed
Claus Gittinger <cg@exept.de>
parents:
163
diff
changeset
|
575 |
|pos pos2 theReceiver theArg theByteCode optByteCode subsel code needLineNr| |
0 | 576 |
|
577 |
theReceiver := receiver. |
|
76 | 578 |
|
579 |
" |
|
580 |
(theReceiver isMessage) ifTrue:[ |
|
186 | 581 |
subsel := theReceiver selector. |
582 |
(subsel == #and:) ifTrue:[ |
|
583 |
self codeAndIfElseOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
|
584 |
^ self |
|
585 |
]. |
|
586 |
(subsel == #or:) ifTrue:[ |
|
587 |
self codeOrIfElseOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
|
588 |
^ self |
|
589 |
] |
|
76 | 590 |
]. |
591 |
" |
|
0 | 592 |
(selector == #ifTrue:ifFalse:) ifTrue:[ |
186 | 593 |
theByteCode := #falseJump |
0 | 594 |
] ifFalse:[ |
186 | 595 |
(selector == #ifFalse:ifTrue:) ifTrue:[ |
596 |
theByteCode := #trueJump |
|
597 |
] |
|
0 | 598 |
]. |
599 |
optByteCode := self optimizedConditionFor:theReceiver |
|
186 | 600 |
with:theByteCode. |
0 | 601 |
optByteCode notNil ifTrue:[ |
186 | 602 |
((optByteCode == #eqJump) or:[optByteCode == #notEqJump]) ifTrue:[ |
603 |
theArg := theReceiver arg1 |
|
604 |
]. |
|
605 |
theReceiver := theReceiver receiver. |
|
606 |
theByteCode := optByteCode |
|
0 | 607 |
]. |
608 |
theByteCode notNil ifTrue:[ |
|
186 | 609 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
53 | 610 |
|
186 | 611 |
needLineNr := true. |
612 |
theArg isNil ifTrue:[ |
|
613 |
theReceiver isMessage ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
614 |
(aCompiler hasLineNumber:(theReceiver selector)) ifTrue:[ |
186 | 615 |
theReceiver lineNumber == lineNr ifTrue:[ |
616 |
needLineNr := false |
|
617 |
] |
|
618 |
] |
|
619 |
] |
|
620 |
]. |
|
621 |
theArg notNil ifTrue:[ |
|
622 |
theArg codeOn:aStream inBlock:b for:aCompiler |
|
623 |
]. |
|
53 | 624 |
|
186 | 625 |
needLineNr ifTrue:[ |
626 |
(lineNr between:1 and:255) ifTrue:[ |
|
627 |
aStream nextPut:#lineno; nextPut:lineNr. |
|
628 |
] |
|
629 |
]. |
|
166
9f6c57a3bce1
no line number bytecode in if-else if not needed
Claus Gittinger <cg@exept.de>
parents:
163
diff
changeset
|
630 |
|
186 | 631 |
aStream nextPut:theByteCode. |
632 |
pos := aStream position. |
|
633 |
aStream nextPut:0. |
|
634 |
(argArray at:1) codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
|
635 |
aStream nextPut:#jump. |
|
636 |
pos2 := aStream position. |
|
637 |
aStream nextPut:0. |
|
638 |
code := aStream contents. |
|
639 |
code at:pos put:(aStream position). |
|
640 |
(argArray at:2) codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
|
641 |
code at:pos2 put:(aStream position) |
|
0 | 642 |
] |
166
9f6c57a3bce1
no line number bytecode in if-else if not needed
Claus Gittinger <cg@exept.de>
parents:
163
diff
changeset
|
643 |
|
9f6c57a3bce1
no line number bytecode in if-else if not needed
Claus Gittinger <cg@exept.de>
parents:
163
diff
changeset
|
644 |
"Modified: 13.12.1995 / 18:51:39 / cg" |
0 | 645 |
! |
646 |
||
104 | 647 |
codeIfOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
0 | 648 |
"generate code for x ifxxx:[ ... ]" |
649 |
||
103 | 650 |
|pos pos2 theReceiver theArg theByteCode optByteCode subsel code |
651 |
needLineNr| |
|
0 | 652 |
|
653 |
theReceiver := receiver. |
|
654 |
||
76 | 655 |
(theReceiver isMessage) ifTrue:[ |
47 | 656 |
subsel := theReceiver selector. |
657 |
(subsel == #and:) ifTrue:[ |
|
104 | 658 |
self codeAndIfOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
47 | 659 |
^ self |
660 |
]. |
|
661 |
(subsel == #or:) ifTrue:[ |
|
104 | 662 |
self codeOrIfOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
47 | 663 |
^ self |
664 |
] |
|
0 | 665 |
]. |
666 |
(selector == #ifTrue:) ifTrue:[ |
|
47 | 667 |
theByteCode := #falseJump |
0 | 668 |
] ifFalse:[ |
47 | 669 |
theByteCode := #trueJump |
0 | 670 |
]. |
671 |
optByteCode := self optimizedConditionFor:theReceiver |
|
47 | 672 |
with:theByteCode. |
0 | 673 |
optByteCode notNil ifTrue:[ |
47 | 674 |
((optByteCode == #eqJump) or:[optByteCode == #notEqJump]) ifTrue:[ |
675 |
theArg := theReceiver arg1 |
|
676 |
]. |
|
677 |
theReceiver := theReceiver receiver. |
|
678 |
theByteCode := optByteCode |
|
0 | 679 |
]. |
680 |
||
104 | 681 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
0 | 682 |
theArg notNil ifTrue:[ |
104 | 683 |
theArg codeOn:aStream inBlock:b for:aCompiler |
0 | 684 |
]. |
53 | 685 |
|
103 | 686 |
needLineNr := true. |
687 |
theArg isNil ifTrue:[ |
|
688 |
theReceiver isMessage ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
689 |
(aCompiler hasLineNumber:(theReceiver selector)) ifTrue:[ |
103 | 690 |
theReceiver lineNumber == lineNr ifTrue:[ |
691 |
needLineNr := false |
|
692 |
] |
|
693 |
] |
|
694 |
] |
|
695 |
]. |
|
696 |
||
697 |
needLineNr ifTrue:[ |
|
698 |
(lineNr between:1 and:255) ifTrue:[ |
|
699 |
aStream nextPut:#lineno; nextPut:lineNr. |
|
700 |
] |
|
53 | 701 |
]. |
702 |
||
0 | 703 |
aStream nextPut:theByteCode. |
704 |
pos := aStream position. |
|
705 |
aStream nextPut:0. |
|
104 | 706 |
(argArray at: 1) codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
76 | 707 |
|
708 |
code := aStream contents. |
|
0 | 709 |
valueNeeded ifTrue:[ |
47 | 710 |
aStream nextPut:#jump. |
711 |
pos2 := aStream position. |
|
712 |
aStream nextPut:0. |
|
76 | 713 |
code at:pos put:(aStream position). |
47 | 714 |
aStream nextPut:#pushNil. |
76 | 715 |
code at:pos2 put:(aStream position) |
0 | 716 |
] ifFalse:[ |
76 | 717 |
code at:pos put:(aStream position) |
0 | 718 |
] |
719 |
! |
|
720 |
||
140 | 721 |
codeOn:aStream inBlock:b for:aCompiler |
722 |
self codeOn:aStream inBlock:b valueNeeded:true for:aCompiler |
|
0 | 723 |
! |
724 |
||
104 | 725 |
codeOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
726 |
|recType nargs isBuiltIn litIndex cls clsLitIndex code isSpecial| |
0 | 727 |
|
728 |
argArray isNil ifTrue:[ |
|
47 | 729 |
nargs := 0 |
0 | 730 |
] ifFalse:[ |
47 | 731 |
nargs := argArray size |
0 | 732 |
]. |
733 |
||
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
734 |
isBuiltIn := isSpecial := false. |
117 | 735 |
recType := receiver type. |
0 | 736 |
|
737 |
(nargs == 0) ifTrue:[ |
|
117 | 738 |
(recType == #ThisContext) ifTrue:[ |
47 | 739 |
valueNeeded ifFalse:[ |
740 |
"for now, only do it in methods" |
|
741 |
b isNil ifTrue:[ |
|
742 |
(selector == #restart) ifTrue:[ |
|
95 | 743 |
aStream nextPut:#jump; nextPut:1. "jump to start" |
47 | 744 |
^ self |
745 |
]. |
|
746 |
]. |
|
747 |
(selector == #return) ifTrue:[ "^ nil" |
|
748 |
aStream nextPut:#retNil. |
|
749 |
^ self |
|
750 |
]. |
|
751 |
] |
|
752 |
]. |
|
52 | 753 |
|
754 |
receiver isBlock ifTrue:[ |
|
755 |
selector == #value ifTrue:[ |
|
104 | 756 |
receiver codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
52 | 757 |
^ self |
758 |
]. |
|
200
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
759 |
((selector == #whileTrue) or:[selector == #whileFalse]) ifTrue:[ |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
760 |
self codeWhileOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
761 |
^ self |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
762 |
]. |
52 | 763 |
]. |
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
764 |
isBuiltIn := aCompiler isBuiltInUnarySelector:selector. |
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
765 |
isBuiltIn ifFalse:[ |
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
766 |
isSpecial := aCompiler isSpecialSendSelector:selector |
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
767 |
] |
0 | 768 |
]. |
769 |
||
770 |
(nargs == 1) ifTrue:[ |
|
117 | 771 |
(recType == #ThisContext) ifTrue:[ |
47 | 772 |
valueNeeded ifFalse:[ |
773 |
(selector == #return:) ifTrue:[ |
|
104 | 774 |
(argArray at:1) codeOn:aStream inBlock:b for:aCompiler. "^ value" |
47 | 775 |
aStream nextPut:#retTop. |
776 |
^ self |
|
777 |
]. |
|
778 |
]. |
|
779 |
]. |
|
19 | 780 |
|
47 | 781 |
((argArray at:1) isBlock) ifTrue:[ |
782 |
((selector == #ifTrue:) or:[selector == #ifFalse:]) ifTrue:[ |
|
55 | 783 |
receiver isBlock ifFalse:[ |
104 | 784 |
self codeIfOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
55 | 785 |
^ self |
786 |
]. |
|
47 | 787 |
]. |
0 | 788 |
" |
47 | 789 |
((selector == #and:) or:[selector == #or:]) ifTrue:[ |
104 | 790 |
self codeAndOrOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
47 | 791 |
^ self |
792 |
]. |
|
0 | 793 |
" |
47 | 794 |
(selector == #timesRepeat:) ifTrue:[ |
795 |
(receiver isConstant and:[receiver evaluate isNumber]) ifTrue:[ |
|
104 | 796 |
self codeTimesRepeatOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
47 | 797 |
^ self |
798 |
] |
|
799 |
]. |
|
0 | 800 |
|
47 | 801 |
((selector == #whileTrue:) or:[selector == #whileFalse:]) ifTrue:[ |
802 |
(receiver isBlock) ifTrue:[ |
|
104 | 803 |
self codeWhileOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
47 | 804 |
^ self |
805 |
] |
|
806 |
] |
|
807 |
]. |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
808 |
isBuiltIn := aCompiler isBuiltIn1ArgSelector:selector |
0 | 809 |
]. |
810 |
||
811 |
(nargs == 2) ifTrue:[ |
|
47 | 812 |
((selector == #ifTrue:ifFalse:) or:[selector == #ifFalse:ifTrue:]) ifTrue:[ |
55 | 813 |
receiver isBlock ifFalse:[ |
814 |
(argArray at:1) isBlock ifTrue:[ |
|
815 |
(argArray at:2) isBlock ifTrue:[ |
|
104 | 816 |
self codeIfElseOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
55 | 817 |
^ self |
818 |
] |
|
47 | 819 |
] |
820 |
] |
|
821 |
]. |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
822 |
isBuiltIn := aCompiler isBuiltIn2ArgSelector:selector |
0 | 823 |
]. |
824 |
||
825 |
"can we use a send-bytecode ?" |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
826 |
(isBuiltIn or:[isSpecial]) ifTrue:[ |
48 | 827 |
receiver isSuper ifFalse:[ |
104 | 828 |
receiver codeOn:aStream inBlock:b for:aCompiler. |
47 | 829 |
(nargs > 0) ifTrue:[ |
104 | 830 |
(argArray at:1) codeOn:aStream inBlock:b for:aCompiler. |
47 | 831 |
(nargs > 1) ifTrue:[ |
104 | 832 |
(argArray at:2) codeOn:aStream inBlock:b for:aCompiler |
47 | 833 |
] |
834 |
]. |
|
835 |
aStream nextPut:selector. |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
836 |
(aCompiler hasLineNumber:selector) ifTrue:[ |
47 | 837 |
aStream nextPut:lineNr. |
838 |
]. |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
839 |
isSpecial ifTrue:[ |
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
840 |
aStream nextPut:(aCompiler specialSendCodeFor:selector) |
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
841 |
]. |
47 | 842 |
valueNeeded ifFalse:[ |
843 |
aStream nextPut:#drop |
|
844 |
]. |
|
845 |
^ self |
|
846 |
] |
|
0 | 847 |
]. |
848 |
||
849 |
((nargs == 0) and:[selector == #yourself]) ifTrue:[ |
|
47 | 850 |
"yourself is often added to get the receiver - |
851 |
we get it without the yourself-message" |
|
0 | 852 |
|
47 | 853 |
valueNeeded ifTrue:[ |
104 | 854 |
receiver codeOn:aStream inBlock:b for:aCompiler |
47 | 855 |
]. |
856 |
^ self |
|
0 | 857 |
]. |
858 |
||
859 |
"no - generate a send" |
|
117 | 860 |
|
861 |
receiver isSuper ifTrue:[ |
|
862 |
cls := aCompiler targetClass. |
|
863 |
receiver isHere ifTrue:[ |
|
864 |
code := #hereSend. |
|
865 |
] ifFalse:[ |
|
866 |
code := #superSend. |
|
867 |
cls := cls superclass. |
|
868 |
]. |
|
869 |
clsLitIndex := aCompiler addLiteral:cls. |
|
870 |
] ifFalse:[ |
|
871 |
clsLitIndex := 0. |
|
0 | 872 |
]. |
106 | 873 |
|
117 | 874 |
litIndex := aCompiler addLiteral:selector. |
875 |
(litIndex <= 255 and:[clsLitIndex <= 255]) ifTrue:[ |
|
876 |
(recType ~~ #Self) ifTrue:[ |
|
877 |
receiver codeOn:aStream inBlock:b for:aCompiler |
|
878 |
]. |
|
879 |
argArray notNil ifTrue:[ |
|
880 |
argArray do:[:arg | |
|
881 |
arg codeOn:aStream inBlock:b for:aCompiler |
|
882 |
] |
|
883 |
]. |
|
884 |
||
106 | 885 |
receiver isSuper ifTrue:[ |
117 | 886 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:nargs; nextPut:clsLitIndex. |
106 | 887 |
valueNeeded ifFalse:[ |
888 |
aStream nextPut:#drop |
|
889 |
]. |
|
890 |
^ self |
|
891 |
]. |
|
892 |
||
893 |
(nargs <= 3) ifTrue:[ |
|
894 |
|codes| |
|
895 |
||
896 |
valueNeeded ifTrue:[ |
|
897 |
(receiver type == #Self) ifTrue:[ |
|
898 |
codes := #(sendSelf0 sendSelf1 sendSelf2 sendSelf3) |
|
899 |
] ifFalse:[ |
|
900 |
codes := #(send0 send1 send2 send3) |
|
901 |
] |
|
902 |
] ifFalse:[ |
|
903 |
(receiver type == #Self) ifTrue:[ |
|
904 |
codes := #(sendSelfDrop0 sendSelfDrop1 sendSelfDrop2 sendSelfDrop3) |
|
905 |
] ifFalse:[ |
|
906 |
codes := #(sendDrop0 sendDrop1 sendDrop2 sendDrop3) |
|
907 |
] |
|
908 |
]. |
|
117 | 909 |
aStream nextPut:(codes at:(nargs + 1)); nextPut:lineNr; nextPut:litIndex. |
106 | 910 |
^ self |
911 |
]. |
|
912 |
||
117 | 913 |
(recType == #Self) ifTrue:[ |
914 |
code := #sendSelf |
|
106 | 915 |
] ifFalse:[ |
117 | 916 |
valueNeeded ifTrue:[ |
917 |
code := #send |
|
918 |
] ifFalse:[ |
|
919 |
code := #sendDrop |
|
920 |
] |
|
106 | 921 |
]. |
117 | 922 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:nargs. |
923 |
valueNeeded ifFalse:[ |
|
924 |
(recType == #Self) ifTrue:[ |
|
925 |
aStream nextPut:#drop |
|
926 |
] |
|
927 |
]. |
|
106 | 928 |
^ self |
929 |
]. |
|
930 |
||
931 |
"needs 16bit literal index" |
|
117 | 932 |
|
48 | 933 |
receiver isSuper ifTrue:[ |
117 | 934 |
argArray notNil ifTrue:[ |
935 |
argArray do:[:arg | |
|
936 |
arg codeOn:aStream inBlock:b for:aCompiler |
|
937 |
] |
|
938 |
]. |
|
49 | 939 |
receiver isHere ifTrue:[ |
106 | 940 |
code := #hereSendL |
49 | 941 |
] ifFalse:[ |
106 | 942 |
code := #superSendL. |
49 | 943 |
]. |
117 | 944 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:0; nextPut:nargs; nextPut:clsLitIndex; nextPut:0. |
945 |
] ifFalse:[ |
|
946 |
recType ~~ #Self ifTrue:[ |
|
947 |
receiver codeOn:aStream inBlock:b for:aCompiler. |
|
47 | 948 |
]. |
117 | 949 |
argArray notNil ifTrue:[ |
950 |
argArray do:[:arg | |
|
951 |
arg codeOn:aStream inBlock:b for:aCompiler |
|
952 |
] |
|
953 |
]. |
|
954 |
||
955 |
recType == #Self ifTrue:[ |
|
956 |
code := #sendSelfL |
|
957 |
] ifFalse:[ |
|
958 |
code := #sendL |
|
959 |
]. |
|
960 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:0; nextPut:nargs. |
|
0 | 961 |
]. |
117 | 962 |
valueNeeded ifFalse:[ |
963 |
aStream nextPut:#drop |
|
0 | 964 |
]. |
117 | 965 |
|
966 |
"Modified: 3.9.1995 / 12:55:42 / claus" |
|
0 | 967 |
! |
968 |
||
140 | 969 |
codeOrIfOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
970 |
"generate code for (x or:[y]) ifxxx:[ ... ]" |
|
971 |
||
972 |
|theByteCode optByteCode theReceiver theArg pos1 pos2 pos3 code here jmp| |
|
973 |
||
974 |
theByteCode := #trueJump. |
|
975 |
theReceiver := receiver receiver. |
|
976 |
||
977 |
optByteCode := self optimizedConditionFor:theReceiver with:theByteCode. |
|
978 |
optByteCode notNil ifTrue:[ |
|
979 |
((optByteCode == #eqJump) or:[optByteCode == #notEqJump]) ifTrue:[ |
|
980 |
theArg := theReceiver arg1 |
|
981 |
]. |
|
982 |
theReceiver := theReceiver receiver. |
|
983 |
theByteCode := optByteCode |
|
984 |
]. |
|
985 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
|
986 |
theArg notNil ifTrue:[ |
|
987 |
theArg codeOn:aStream inBlock:b for:aCompiler |
|
988 |
]. |
|
989 |
aStream nextPut:theByteCode. |
|
990 |
pos1 := aStream position. |
|
991 |
aStream nextPut:0. |
|
992 |
||
993 |
||
994 |
theReceiver := receiver arg1. |
|
995 |
||
996 |
"new:" |
|
997 |
(selector == #ifTrue:) ifTrue:[ |
|
998 |
theByteCode := #falseJump |
|
999 |
] ifFalse:[ |
|
1000 |
theByteCode := #trueJump |
|
1001 |
]. |
|
1002 |
optByteCode := self optimizedConditionFor:theReceiver with:theByteCode. |
|
1003 |
optByteCode notNil ifTrue:[ |
|
1004 |
theReceiver isBlock ifTrue:[ |
|
1005 |
theReceiver := theReceiver statements expression |
|
1006 |
]. |
|
1007 |
((optByteCode == #eqJump) or:[optByteCode == #notEqJump]) ifTrue:[ |
|
1008 |
theArg := theReceiver arg1 |
|
1009 |
]. |
|
1010 |
theReceiver := theReceiver receiver. |
|
1011 |
theByteCode := optByteCode. |
|
1012 |
||
1013 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
|
1014 |
theArg notNil ifTrue:[ |
|
1015 |
theArg codeOn:aStream inBlock:b for:aCompiler |
|
1016 |
]. |
|
1017 |
aStream nextPut:theByteCode. |
|
1018 |
||
1019 |
] ifFalse:[ |
|
1020 |
"org" |
|
1021 |
theReceiver codeInlineOn:aStream inBlock:b for:aCompiler. |
|
1022 |
(selector == #ifTrue:) ifTrue:[ |
|
1023 |
jmp := #falseJump |
|
1024 |
] ifFalse:[ |
|
1025 |
jmp := #trueJump |
|
1026 |
]. |
|
1027 |
aStream nextPut:jmp |
|
1028 |
]. |
|
1029 |
pos2 := aStream position. |
|
1030 |
aStream nextPut:0. |
|
1031 |
(selector == #ifTrue:) ifTrue:[ |
|
1032 |
(aStream contents) at:pos1 put:(aStream position) |
|
1033 |
]. |
|
1034 |
(argArray at: 1) codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
|
1035 |
||
1036 |
code := aStream contents. |
|
1037 |
valueNeeded ifTrue:[ |
|
1038 |
aStream nextPut:#jump. |
|
1039 |
pos3 := aStream position. |
|
1040 |
aStream nextPut:0. |
|
1041 |
here := aStream position. |
|
1042 |
(selector == #ifFalse:) ifTrue:[ |
|
1043 |
code at:pos1 put:here |
|
1044 |
]. |
|
1045 |
code at:pos2 put:here. |
|
1046 |
aStream nextPut:#pushNil. |
|
1047 |
code at:pos3 put:(aStream position) |
|
1048 |
] ifFalse:[ |
|
1049 |
here := aStream position. |
|
1050 |
(selector == #ifFalse:) ifTrue:[ |
|
1051 |
code at:pos1 put:here |
|
1052 |
]. |
|
1053 |
code at:pos2 put:here |
|
1054 |
] |
|
1055 |
! |
|
1056 |
||
104 | 1057 |
codeSendOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
0 | 1058 |
"like code on, but assumes that receiver has already been |
1059 |
coded onto stack - needed for cascade" |
|
1060 |
||
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1061 |
|nargs isBuiltIn code codeL litIndex cls clsLitIndex| |
0 | 1062 |
|
1063 |
argArray isNil ifTrue:[ |
|
47 | 1064 |
nargs := 0 |
0 | 1065 |
] ifFalse:[ |
47 | 1066 |
nargs := argArray size |
0 | 1067 |
]. |
1068 |
||
1069 |
isBuiltIn := false. |
|
1070 |
||
1071 |
(nargs == 0) ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
1072 |
isBuiltIn := aCompiler isBuiltInUnarySelector:selector |
0 | 1073 |
]. |
1074 |
(nargs == 1) ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
1075 |
isBuiltIn := aCompiler isBuiltIn1ArgSelector:selector |
0 | 1076 |
]. |
1077 |
(nargs == 2) ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
1078 |
isBuiltIn := aCompiler isBuiltIn2ArgSelector:selector |
0 | 1079 |
]. |
1080 |
||
1081 |
"can we use a send-bytecode ?" |
|
1082 |
isBuiltIn ifTrue:[ |
|
48 | 1083 |
receiver isSuper ifFalse:[ |
47 | 1084 |
(nargs > 0) ifTrue:[ |
104 | 1085 |
(argArray at:1) codeOn:aStream inBlock:b for:aCompiler. |
47 | 1086 |
(nargs > 1) ifTrue:[ |
104 | 1087 |
(argArray at:2) codeOn:aStream inBlock:b for:aCompiler |
47 | 1088 |
] |
1089 |
]. |
|
1090 |
aStream nextPut:selector. |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
1091 |
(aCompiler hasLineNumber:selector) ifTrue:[ |
47 | 1092 |
aStream nextPut:lineNr. |
1093 |
]. |
|
1094 |
valueNeeded ifFalse:[ |
|
1095 |
aStream nextPut:#drop |
|
1096 |
]. |
|
1097 |
^ self |
|
1098 |
] |
|
0 | 1099 |
]. |
1100 |
||
1101 |
argArray notNil ifTrue:[ |
|
47 | 1102 |
argArray do:[:arg | |
104 | 1103 |
arg codeOn:aStream inBlock:b for:aCompiler |
47 | 1104 |
] |
0 | 1105 |
]. |
1106 |
||
48 | 1107 |
receiver isSuper ifTrue:[ |
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1108 |
|
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1109 |
cls := aCompiler targetClass. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1110 |
receiver isHere ifTrue:[ |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1111 |
code := #hereSend. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1112 |
codeL := #hereSendL |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1113 |
] ifFalse:[ |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1114 |
code := #superSend. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1115 |
codeL := #superSend. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1116 |
cls := cls superclass. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1117 |
]. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1118 |
clsLitIndex := aCompiler addLiteral:cls. |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1119 |
|
117 | 1120 |
litIndex := aCompiler addLiteral:selector. |
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1121 |
(litIndex <= 255 and:[clsLitIndex <= 255]) ifTrue:[ |
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1122 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:nargs; nextPut:clsLitIndex. |
49 | 1123 |
] ifFalse:[ |
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1124 |
aStream nextPut:codeL; nextPut:lineNr; nextPut:litIndex; nextPut:0; nextPut:nargs; nextPut:clsLitIndex; nextPut:0. |
49 | 1125 |
]. |
47 | 1126 |
valueNeeded ifFalse:[ |
1127 |
aStream nextPut:#drop |
|
1128 |
]. |
|
1129 |
^ self |
|
0 | 1130 |
]. |
1131 |
(nargs == 0) ifTrue:[ |
|
47 | 1132 |
(selector == #yourself) ifTrue:[ |
1133 |
"yourself is often added to get the receiver - |
|
1134 |
we get it without the yourself-message" |
|
0 | 1135 |
|
47 | 1136 |
valueNeeded ifFalse:[ |
1137 |
aStream nextPut:#drop |
|
1138 |
]. |
|
1139 |
^ self |
|
1140 |
]. |
|
49 | 1141 |
]. |
0 | 1142 |
|
117 | 1143 |
litIndex := aCompiler addLiteral:selector. |
1144 |
litIndex <= 255 ifTrue:[ |
|
106 | 1145 |
(nargs <= 3) ifTrue:[ |
1146 |
valueNeeded ifTrue:[ |
|
1147 |
code := #(send0 send1 send2 send3) at:(nargs+1). |
|
1148 |
] ifFalse:[ |
|
1149 |
code := #(sendDrop0 sendDrop1 sendDrop2 sendDrop3) at:(nargs+1). |
|
1150 |
]. |
|
117 | 1151 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex. |
106 | 1152 |
^ self |
1153 |
]. |
|
1154 |
||
47 | 1155 |
valueNeeded ifTrue:[ |
106 | 1156 |
code := #send |
47 | 1157 |
] ifFalse:[ |
106 | 1158 |
code := #sendDrop |
47 | 1159 |
]. |
117 | 1160 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:nargs. |
47 | 1161 |
^ self |
0 | 1162 |
]. |
49 | 1163 |
|
0 | 1164 |
valueNeeded ifTrue:[ |
106 | 1165 |
code := #sendL |
0 | 1166 |
] ifFalse:[ |
106 | 1167 |
code := #sendDropL |
0 | 1168 |
]. |
117 | 1169 |
aStream nextPut:code; nextPut:lineNr; nextPut:litIndex; nextPut:0; nextPut:nargs |
189
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1170 |
|
673580572edd
fixed cascades involving super sends (i.e. super foo; bar)
Claus Gittinger <cg@exept.de>
parents:
186
diff
changeset
|
1171 |
"Modified: 11.1.1996 / 16:46:41 / cg" |
0 | 1172 |
! |
1173 |
||
140 | 1174 |
codeTimesRepeatOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
1175 |
"generate code for n timesRepeat:[ ... ]" |
|
1176 |
||
1177 |
|pos pos2 theReceiver| |
|
1178 |
||
1179 |
theReceiver := receiver. |
|
1180 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
|
1181 |
valueNeeded ifTrue:[aStream nextPut:#dup]. |
|
96 | 1182 |
|
140 | 1183 |
pos := aStream position. |
1184 |
"/ aStream nextPut:#dup; nextPut:#push0; nextPut:#>; nextPut:lineNr; nextPut:#falseJump. |
|
1185 |
"/ aStream nextPut:#dup; nextPut:#gt0; nextPut:lineNr; nextPut:#falseJump. |
|
1186 |
aStream nextPut:#pushgt0; nextPut:lineNr; nextPut:#falseJump. |
|
1187 |
pos2 := aStream position. |
|
1188 |
aStream nextPut:0. |
|
1189 |
||
1190 |
(argArray at:1) codeInlineOn:aStream inBlock:b valueNeeded:false for:aCompiler. |
|
1191 |
aStream nextPut:#minus1; nextPut:lineNr; nextPut:#jump; nextPut:pos. |
|
1192 |
||
1193 |
(aStream contents) at:pos2 put:(aStream position). |
|
1194 |
aStream nextPut:#drop. |
|
1195 |
! |
|
1196 |
||
1197 |
codeWhileOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler |
|
200
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1198 |
"generate code for |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1199 |
[...] whileXXX:[ ... ] |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1200 |
and also |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1201 |
[...] whileXXX |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1202 |
" |
140 | 1203 |
|
200
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1204 |
|pos pos2 theReceiver theArg theByteCode optByteCode needLineNr blockExpr |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1205 |
hasLoopBlock| |
0 | 1206 |
|
200
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1207 |
hasLoopBlock := true. |
140 | 1208 |
(selector == #whileTrue:) ifTrue:[ |
200
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1209 |
theByteCode := #falseJump. |
0 | 1210 |
] ifFalse:[ |
200
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1211 |
(selector == #whileFalse:) ifTrue:[ |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1212 |
theByteCode := #trueJump |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1213 |
] ifFalse:[ |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1214 |
hasLoopBlock := false. |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1215 |
(selector == #whileTrue) ifTrue:[ |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1216 |
theByteCode := #trueJump |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1217 |
] ifFalse:[ |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1218 |
theByteCode := #falseJump |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1219 |
]. |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1220 |
] |
140 | 1221 |
]. |
1222 |
||
1223 |
theReceiver := receiver. |
|
1224 |
optByteCode := self optimizedConditionFor:theReceiver with:theByteCode. |
|
1225 |
optByteCode notNil ifTrue:[ |
|
186 | 1226 |
((optByteCode == #eqJump) or:[optByteCode == #notEqJump]) ifTrue:[ |
1227 |
theArg := receiver statements expression arg1 |
|
1228 |
]. |
|
1229 |
theReceiver := receiver statements expression receiver. |
|
1230 |
theByteCode := optByteCode |
|
140 | 1231 |
]. |
1232 |
||
1233 |
"/ OLD: |
|
1234 |
"/ valueNeeded ifTrue:[aStream nextPut:#pushNil]. |
|
1235 |
"/ |
|
167 | 1236 |
needLineNr := true. |
1237 |
||
140 | 1238 |
pos := aStream position. |
1239 |
optByteCode notNil ifTrue:[ |
|
186 | 1240 |
theReceiver codeOn:aStream inBlock:b for:aCompiler. |
1241 |
theArg notNil ifTrue:[ |
|
1242 |
theArg codeOn:aStream inBlock:b for:aCompiler |
|
1243 |
] |
|
140 | 1244 |
] ifFalse:[ |
186 | 1245 |
theReceiver codeInlineOn:aStream inBlock:b for:aCompiler. |
167 | 1246 |
|
186 | 1247 |
"/ |
1248 |
"/ cannot enable code below |
|
1249 |
"/ (tiny loops would not be debuggable with next, since lineNo remains the same) |
|
1250 |
"/ think about it ... |
|
1251 |
"/ |
|
167 | 1252 |
"/ blockExpr := theReceiver simpleSendBlockReceiver. |
1253 |
"/ blockExpr notNil ifTrue:[ |
|
1254 |
"/ blockExpr isMessage ifTrue:[ |
|
199
1b3b350a3f59
moved bytecode query methods into compiler;
Claus Gittinger <cg@exept.de>
parents:
189
diff
changeset
|
1255 |
"/ (aCompiler hasLineNumber:(blockExpr selector)) ifTrue:[ |
167 | 1256 |
"/ blockExpr lineNumber == lineNr ifTrue:[ |
1257 |
"/ needLineNr := false |
|
1258 |
"/ ] |
|
1259 |
"/ ] |
|
1260 |
"/ ] |
|
1261 |
"/ ]. |
|
140 | 1262 |
]. |
1263 |
||
167 | 1264 |
needLineNr ifTrue:[ |
186 | 1265 |
(lineNr between:1 and:255) ifTrue:[ |
1266 |
aStream nextPut:#lineno; nextPut:lineNr. |
|
1267 |
] |
|
0 | 1268 |
]. |
1269 |
||
200
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1270 |
hasLoopBlock ifFalse:[ |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1271 |
"/ simple [...] whileXXX |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1272 |
aStream nextPut:theByteCode; nextPut:pos. |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1273 |
valueNeeded ifTrue:[aStream nextPut:#pushNil]. |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1274 |
^ self |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1275 |
]. |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1276 |
|
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1277 |
"/ [...] whileXXX:[...] |
b2f77bd77070
inline code for [...] whileXXX
Claus Gittinger <cg@exept.de>
parents:
199
diff
changeset
|
1278 |
|
140 | 1279 |
aStream nextPut:theByteCode. |
1280 |
pos2 := aStream position. |
|
1281 |
aStream nextPut:0. |
|
1282 |
"/ OLD: |
|
1283 |
"/ valueNeeded ifTrue:[aStream nextPut:#drop]. |
|
1284 |
"/ |
|
1285 |
"/ OLD: |
|
1286 |
"/ (argArray at:1) codeInlineOn:aStream inBlock:b valueNeeded:valueNeeded for:aCompiler. |
|
1287 |
"/ NEW: |
|
1288 |
(argArray at:1) codeInlineOn:aStream inBlock:b valueNeeded:false for:aCompiler. |
|
1289 |
aStream nextPut:#jump; nextPut:pos. |
|
1290 |
(aStream contents) at:pos2 put:(aStream position). |
|
1291 |
"/ NEW: |
|
1292 |
valueNeeded ifTrue:[aStream nextPut:#pushNil]. |
|
167 | 1293 |
|
1294 |
"Modified: 13.12.1995 / 19:42:49 / cg" |
|
140 | 1295 |
! |
1296 |
||
1297 |
optimizedConditionFor:aReceiver with:aByteCode |
|
186 | 1298 |
|rec sel stats| |
0 | 1299 |
|
140 | 1300 |
rec := aReceiver. |
1301 |
(rec isBlock) ifTrue:[ |
|
186 | 1302 |
(stats := rec statements) notNil ifTrue:[ |
1303 |
stats nextStatement isNil ifTrue:[ |
|
1304 |
rec := rec statements expression |
|
1305 |
] |
|
140 | 1306 |
] |
1307 |
]. |
|
1308 |
(rec isUnaryMessage) ifTrue:[ |
|
1309 |
sel := rec selector. |
|
1310 |
(sel == #isNil) ifTrue:[ |
|
1311 |
"/ |
|
1312 |
"/ isNil trueJmp -> nilJump |
|
1313 |
"/ isNil falseJmp -> notNilJump |
|
1314 |
"/ |
|
1315 |
(aByteCode == #trueJump) ifTrue:[^ #nilJump]. |
|
1316 |
(aByteCode == #falseJump) ifTrue:[^ #notNilJump] |
|
1317 |
]. |
|
1318 |
(sel == #notNil) ifTrue:[ |
|
1319 |
"/ |
|
1320 |
"/ notNil trueJmp -> notNilJump |
|
1321 |
"/ notNil falseJmp -> nilJump |
|
1322 |
"/ |
|
1323 |
(aByteCode == #trueJump) ifTrue:[^ #notNilJump]. |
|
1324 |
(aByteCode == #falseJump) ifTrue:[^ #nilJump] |
|
1325 |
]. |
|
1326 |
(sel == #not) ifTrue:[ |
|
1327 |
"/ |
|
1328 |
"/ not trueJmp -> falseJump |
|
1329 |
"/ not falseJmp -> trueJump |
|
1330 |
"/ |
|
1331 |
(aByteCode == #trueJump) ifTrue:[^ #falseJump]. |
|
1332 |
(aByteCode == #falseJump) ifTrue:[^ #trueJump] |
|
1333 |
]. |
|
1334 |
^ nil |
|
0 | 1335 |
]. |
140 | 1336 |
(rec isBinaryMessage) ifTrue:[ |
1337 |
sel := rec selector. |
|
1338 |
rec arg1 isConstant ifTrue:[ |
|
1339 |
(rec arg1 value == 0) ifTrue:[ |
|
1340 |
"/ |
|
1341 |
"/ ==0 trueJmp -> zeroJump |
|
1342 |
"/ ==0 falseJmp -> notZeroJump |
|
1343 |
"/ |
|
1344 |
(sel == #==) ifTrue:[ |
|
1345 |
(aByteCode == #trueJump) ifTrue:[^ #zeroJump]. |
|
1346 |
(aByteCode == #falseJump) ifTrue:[^ #notZeroJump] |
|
1347 |
]. |
|
1348 |
"/ |
|
1349 |
"/ ~~0 trueJmp -> notZeroJump |
|
1350 |
"/ ~~0 falseJmp -> zeroJump |
|
1351 |
"/ |
|
1352 |
(sel == #~~) ifTrue:[ |
|
1353 |
(aByteCode == #falseJump) ifTrue:[^ #zeroJump]. |
|
1354 |
(aByteCode == #trueJump) ifTrue:[^ #notZeroJump] |
|
1355 |
]. |
|
1356 |
^ nil |
|
1357 |
] |
|
1358 |
]. |
|
1359 |
(sel == #==) ifTrue:[ |
|
1360 |
"/ |
|
1361 |
"/ == trueJmp -> eqJump |
|
1362 |
"/ == falseJmp -> notEqJump |
|
1363 |
"/ |
|
1364 |
(aByteCode == #trueJump) ifTrue:[^ #eqJump]. |
|
1365 |
(aByteCode == #falseJump) ifTrue:[^ #notEqJump] |
|
1366 |
]. |
|
1367 |
(sel == #~~) ifTrue:[ |
|
1368 |
"/ |
|
1369 |
"/ ~~ trueJmp -> notEqJump |
|
1370 |
"/ ~~ falseJmp -> eqJump |
|
1371 |
"/ |
|
1372 |
(aByteCode == #falseJump) ifTrue:[^ #eqJump]. |
|
1373 |
(aByteCode == #trueJump) ifTrue:[^ #notEqJump] |
|
1374 |
] |
|
1375 |
]. |
|
1376 |
^ nil |
|
1377 |
! ! |
|
1378 |
||
1379 |
!MessageNode methodsFor:'evaluating'! |
|
1380 |
||
1381 |
evaluate |
|
1382 |
|r nargs argValueArray class| |
|
1383 |
||
1384 |
receiver isSuper ifTrue:[ |
|
1385 |
r := receiver value. |
|
1386 |
receiver isHere ifTrue:[ |
|
1387 |
class := receiver definingClass. |
|
1388 |
] ifFalse:[ |
|
1389 |
class := receiver definingClass superclass. |
|
1390 |
]. |
|
1391 |
argArray notNil ifTrue:[ |
|
1392 |
argValueArray := argArray collect:[:arg | arg evaluate]. |
|
1393 |
] ifFalse:[ |
|
1394 |
argValueArray := #() |
|
1395 |
]. |
|
1396 |
^ r perform:selector inClass:class withArguments:argValueArray |
|
1397 |
]. |
|
1398 |
||
1399 |
||
1400 |
argArray isNil ifTrue:[ |
|
1401 |
^ (receiver evaluate) perform:selector |
|
1402 |
]. |
|
1403 |
nargs := argArray size. |
|
0 | 1404 |
(nargs == 1) ifTrue:[ |
140 | 1405 |
^ (receiver evaluate) perform:selector with:(argArray at:1) evaluate |
0 | 1406 |
]. |
1407 |
(nargs == 2) ifTrue:[ |
|
140 | 1408 |
^ (receiver evaluate) perform:selector |
1409 |
with:(argArray at:1) evaluate |
|
1410 |
with:(argArray at:2) evaluate |
|
1411 |
]. |
|
1412 |
(nargs == 3) ifTrue:[ |
|
1413 |
^ (receiver evaluate) perform:selector |
|
1414 |
with:(argArray at:1) evaluate |
|
1415 |
with:(argArray at:2) evaluate |
|
1416 |
with:(argArray at:3) evaluate |
|
1417 |
]. |
|
1418 |
r := receiver evaluate. |
|
1419 |
argValueArray := argArray collect:[:arg | arg evaluate]. |
|
1420 |
^ r perform:selector withArguments:argValueArray |
|
1421 |
! |
|
1422 |
||
1423 |
evaluateForCascade |
|
1424 |
|r nargs argValueArray class| |
|
1425 |
||
1426 |
receiver isSuper ifTrue:[ |
|
1427 |
r := receiver value. |
|
1428 |
class := receiver definingClass. |
|
1429 |
receiver isHere ifFalse:[ |
|
1430 |
class := class superclass. |
|
1431 |
]. |
|
1432 |
argArray notNil ifTrue:[ |
|
1433 |
argValueArray := argArray collect:[:arg | arg evaluate]. |
|
1434 |
] ifFalse:[ |
|
1435 |
argValueArray := #() |
|
1436 |
]. |
|
1437 |
r perform:selector inClass:class withArguments:argValueArray. |
|
1438 |
^ r |
|
0 | 1439 |
]. |
1440 |
||
140 | 1441 |
r := receiver evaluate. |
1442 |
argArray isNil ifTrue:[ |
|
1443 |
r perform:selector. |
|
1444 |
^ r |
|
1445 |
]. |
|
1446 |
nargs := argArray size. |
|
1447 |
(nargs == 1) ifTrue:[ |
|
1448 |
r perform:selector with:(argArray at:1) evaluate. |
|
1449 |
^ r |
|
1450 |
]. |
|
1451 |
(nargs == 2) ifTrue:[ |
|
1452 |
r perform:selector with:(argArray at:1) evaluate |
|
1453 |
with:(argArray at:2) evaluate. |
|
1454 |
^ r |
|
1455 |
]. |
|
1456 |
(nargs == 3) ifTrue:[ |
|
1457 |
r perform:selector with:(argArray at:1) evaluate |
|
1458 |
with:(argArray at:2) evaluate |
|
1459 |
with:(argArray at:3) evaluate. |
|
1460 |
^ r |
|
1461 |
]. |
|
1462 |
argValueArray := argArray collect:[:arg | arg evaluate]. |
|
1463 |
r perform:selector withArguments:argValueArray. |
|
1464 |
^ r |
|
1465 |
! ! |
|
1466 |
||
1467 |
!MessageNode methodsFor:'printing'! |
|
1468 |
||
1469 |
printOn:aStream indent:i |
|
1470 |
|needParen selectorParts index index2 arg| |
|
1471 |
||
1472 |
(#(whileTrue: whileFalse:) includes:selector) ifTrue:[ |
|
1473 |
receiver isBlock ifTrue:[ |
|
1474 |
^ self printWhileOn:aStream indent:i |
|
1475 |
]. |
|
1476 |
]. |
|
0 | 1477 |
|
140 | 1478 |
index := 1. |
1479 |
selectorParts := OrderedCollection new. |
|
1480 |
[index == 0] whileFalse:[ |
|
1481 |
index2 := selector indexOf:$: startingAt:index. |
|
1482 |
index2 ~~ 0 ifTrue:[ |
|
1483 |
selectorParts add:(selector copyFrom:index to:index2). |
|
1484 |
index2 := index2 + 1 |
|
1485 |
]. |
|
1486 |
index := index2 |
|
1487 |
]. |
|
1488 |
||
1489 |
needParen := false. |
|
1490 |
receiver isMessage ifTrue:[ |
|
1491 |
receiver isUnaryMessage ifFalse:[ |
|
1492 |
receiver isBinaryMessage ifFalse:[ |
|
1493 |
needParen := true |
|
1494 |
]. |
|
1495 |
]. |
|
1496 |
]. |
|
1497 |
needParen ifTrue:[ |
|
1498 |
aStream nextPutAll:'(' |
|
1499 |
]. |
|
1500 |
receiver printOn:aStream indent:i. |
|
1501 |
needParen ifTrue:[ |
|
1502 |
aStream nextPutAll:')' |
|
1503 |
]. |
|
1504 |
||
1505 |
1 to:(argArray size) do:[:argIndex | |
|
1506 |
aStream space. |
|
1507 |
(selectorParts at:argIndex) printOn:aStream. |
|
1508 |
aStream space. |
|
1509 |
arg := argArray at:argIndex. |
|
1510 |
needParen := false. |
|
1511 |
arg isMessage ifTrue:[ |
|
1512 |
arg isBinaryMessage ifFalse:[ |
|
1513 |
arg isUnaryMessage ifFalse:[ |
|
1514 |
needParen := true |
|
47 | 1515 |
] |
1516 |
]. |
|
140 | 1517 |
]. |
1518 |
needParen ifTrue:[ |
|
1519 |
aStream nextPutAll:'(' |
|
1520 |
]. |
|
1521 |
arg printOn:aStream indent:i. |
|
1522 |
needParen ifTrue:[ |
|
1523 |
aStream nextPutAll:') ' |
|
1524 |
]. |
|
1525 |
] |
|
1526 |
! |
|
1527 |
||
1528 |
printWhileOn:aStream indent:i |
|
1529 |
|needParen arg| |
|
0 | 1530 |
|
140 | 1531 |
"special handling of whileTrue/whileFalse" |
1532 |
||
1533 |
aStream nextPutAll:'['. |
|
1534 |
receiver statements printOn:aStream indent:i. |
|
1535 |
aStream nextPutAll:'] whileTrue: '. |
|
1536 |
||
1537 |
arg := argArray at:1. |
|
1538 |
needParen := false. |
|
1539 |
arg isMessage ifTrue:[ |
|
1540 |
arg isBinaryMessage ifFalse:[ |
|
1541 |
arg isUnaryMessage ifFalse:[ |
|
1542 |
needParen := true |
|
1543 |
] |
|
1544 |
]. |
|
0 | 1545 |
]. |
140 | 1546 |
needParen ifTrue:[ |
1547 |
aStream nextPutAll:'(' |
|
1548 |
]. |
|
1549 |
arg printOn:aStream indent:i. |
|
1550 |
needParen ifTrue:[ |
|
1551 |
aStream nextPutAll:') ' |
|
1552 |
]. |
|
1553 |
! ! |
|
106 | 1554 |
|
140 | 1555 |
!MessageNode methodsFor:'queries'! |
1556 |
||
1557 |
isMessage |
|
1558 |
^ true |
|
0 | 1559 |
! ! |
140 | 1560 |
|
148 | 1561 |
!MessageNode class methodsFor:'documentation'! |
1562 |
||
1563 |
version |
|
231 | 1564 |
^ '$Header: /cvs/stx/stx/libcomp/MessageNode.st,v 1.43 1996-03-21 15:19:27 cg Exp $' |
148 | 1565 |
! ! |