author | Stefan Vogel <sv@exept.de> |
Mon, 12 Dec 2016 16:38:47 +0100 | |
changeset 4080 | 08869106d07e |
parent 3961 | 1148f204a97d |
child 4141 | 472f5598b136 |
permissions | -rw-r--r-- |
3931 | 1 |
"{ Encoding: utf8 }" |
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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 |
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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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"{ Package: 'stx:libcomp' }" |
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"{ NameSpace: Smalltalk }" |
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MessageNode subclass:#BinaryNode |
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instanceVariableNames:'' |
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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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!BinaryNode class methodsFor:'documentation'! |
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||
27 |
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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|
32 |
This software is furnished under a license and may be used |
|
33 |
only in accordance with the terms of that license and with the |
|
34 |
inclusion of the above copyright notice. This software may not |
|
35 |
be provided or otherwise made available to, or used by, any |
|
36 |
other person. No title to or ownership of the software is |
|
37 |
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 binary message sends |
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This is a helper class for the compiler. |
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[author:] |
|
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Claus Gittinger |
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||
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" |
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! ! |
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!BinaryNode methodsFor:'accessing'! |
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||
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arg |
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^ argArray at:1 |
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! ! |
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||
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!BinaryNode methodsFor:'checks'! |
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||
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plausibilityCheckIn:aParser |
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"check for possible precedence error and bad vriable name in artihmetic expressions |
62 |
TODO: rewite to use lint/lint rules and apply them before accepting" |
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|rSelector| |
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"/ using +/- in an expression without grouping |
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( #( #'*' #'/' #'//' #'\' #'\\' ) includes:selector) ifTrue:[ |
68 |
receiver isMessage ifTrue:[ |
|
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receiver parenthesized ifFalse:[ |
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rSelector := receiver selector. |
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( #( #'+' #'-') includes:rSelector) ifTrue:[ |
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^ 'possible precedence error - use parentheses to make evaluation order explicit.' |
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]. |
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]. |
75 |
]. |
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76 |
]. |
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( #( #'*' #'/' #'//' #'\' #'\\' #'+' #'-' |
79 |
#'<' #'>' #'<=' #'>=' #'=' #'~=' #'==' #'~~') includes:selector) ifTrue:[ |
|
80 |
((receiver isVariable and:[ receiver name = 'l' ]) |
|
81 |
or:[ (self arg1 isVariable and:[ self arg1 name = 'l' ]) ]) ifTrue:[ |
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^ 'using short names is bad by itself, |
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but using "l" which looks almost like "1" is even worse. |
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Please change to somthinge like "length" or "lengthOfX".' |
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] |
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]. |
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^ super plausibilityCheckIn:aParser. |
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! ! |
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!BinaryNode methodsFor:'code generation'! |
92 |
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codeForSideEffectOn:aStream inBlock:b for:aCompiler |
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"generate code for this statement - value not needed" |
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95 |
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(selector == #= |
97 |
or:[selector == #~= |
|
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or:[selector == #==]]) ifTrue:[ |
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receiver isVariable ifTrue:[ |
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100 |
aCompiler |
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101 |
warning:'possible typing error: ''='' instead of '':=''' |
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102 |
position:selectorPosition to:selectorPosition. |
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103 |
] |
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|
104 |
]. |
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|
105 |
|
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^ super codeForSideEffectOn:aStream inBlock:b for:aCompiler |
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107 |
|
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"Created: 5.8.1997 / 02:32:55 / cg" |
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"Modified: 5.8.1997 / 02:50:18 / cg" |
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! |
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111 |
|
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codeOn:aStream inBlock:b for:aCompiler |
96 | 113 |
|arg1 recVal argVal code| |
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|
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Lazy conversion of selector strings to symbols.
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115 |
selector := selector asSymbol. |
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Lazy conversion of selector strings to symbols.
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|
116 |
|
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receiver isSuper ifFalse:[ |
1807 | 118 |
(aCompiler isBuiltInSelector:selector forReceiver:receiver) ifTrue:[ |
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arg1 := argArray at:1. |
76 | 120 |
|
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receiver isConstant ifTrue:[ |
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recVal := receiver value. |
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(receiver type == #Integer) ifTrue:[ |
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((selector == #==) or:[selector == #~~]) ifTrue:[ |
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recVal == 0 ifTrue:[ |
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|
126 |
arg1 codeOn:aStream inBlock:b for:aCompiler. |
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|
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(selector == #==) ifTrue:[ |
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code := #eq0 |
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129 |
] ifFalse:[ |
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code := #ne0 |
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131 |
]. |
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132 |
aStream nextPut:code. |
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^ self |
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134 |
] |
759ba0ddb672
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|
135 |
]. |
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|
136 |
]. |
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|
253
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|
138 |
recVal == nil ifTrue:[ |
797
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oops - nil + 5 generated wrong code.
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parents:
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|
139 |
((selector == #==) or:[selector == #~~]) ifTrue:[ |
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parents:
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|
140 |
arg1 codeOn:aStream inBlock:b for:aCompiler. |
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|
141 |
(selector == #==) ifTrue:[ |
dec188dd71d5
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|
142 |
code := #isNil |
dec188dd71d5
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parents:
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|
143 |
] ifFalse:[ |
dec188dd71d5
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parents:
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|
144 |
code := #notNil |
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|
145 |
]. |
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|
146 |
aStream nextPut:code. |
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|
147 |
^ self |
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|
148 |
] |
253
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|
149 |
]. |
1391 | 150 |
|
1408
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parents:
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|
151 |
"/ disabled this, since it is confusing if the error is reported |
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parents:
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|
152 |
"/ by the argument as receiver (i.e. transforms 1+foo into foo+1) |
1409 | 153 |
"/ and it might also be incorrect. |
3961 | 154 |
"/ correct would be to encode it with a reverse-plus1 opCode, |
155 |
"/ which checks for int/float args and does a reverse send as fallback. |
|
156 |
"/ The jitter does that already, so we don't care on the bytecode level. |
|
1408
3f8cf5defc64
disabled 1+foo -> foo+1 transformation
Claus Gittinger <cg@exept.de>
parents:
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diff
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|
157 |
"/ (selector == #+) ifTrue:[ |
3f8cf5defc64
disabled 1+foo -> foo+1 transformation
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parents:
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diff
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|
158 |
"/ (recVal == 1) ifTrue:[ |
3f8cf5defc64
disabled 1+foo -> foo+1 transformation
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parents:
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|
159 |
"/ arg1 codeOn:aStream inBlock:b for:aCompiler. |
1409 | 160 |
"/ aStream nextPut:#plus1; nextPut:lineNr. |
1408
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|
161 |
"/ ^ self |
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parents:
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|
162 |
"/ ] |
3f8cf5defc64
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parents:
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|
163 |
"/ ] |
253
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|
164 |
]. |
76 | 165 |
|
253
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|
166 |
receiver codeOn:aStream inBlock:b for:aCompiler. |
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|
167 |
arg1 isConstant ifTrue:[ |
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|
168 |
argVal := arg1 value. |
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|
169 |
(arg1 type == #Integer) ifTrue:[ |
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|
170 |
((selector == #==) or:[selector == #~~]) ifTrue:[ |
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|
171 |
(argVal == 0) ifTrue:[ |
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|
172 |
(selector == #==) ifTrue:[ |
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|
173 |
code := #eq0 |
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|
174 |
] ifFalse:[ |
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|
175 |
code := #ne0 |
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|
176 |
]. |
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|
177 |
aStream nextPut:code. |
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|
178 |
^ self |
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|
179 |
] |
759ba0ddb672
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diff
changeset
|
180 |
]. |
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|
181 |
selector == #> ifTrue:[ |
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|
182 |
argVal == 0 ifTrue:[ |
3109
da064b68e58a
Emit LINE16 bytecode insn just before a SEND bytecode is emmited when
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
2607
diff
changeset
|
183 |
lineNr >= 255 ifTrue:[ |
3167
f11dc7fda92f
Do not generate #lineno16 byte codes if still on the same line
Stefan Vogel <sv@exept.de>
parents:
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diff
changeset
|
184 |
self codeLineNumber: lineNr on: aStream for: aCompiler. |
3109
da064b68e58a
Emit LINE16 bytecode insn just before a SEND bytecode is emmited when
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parents:
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diff
changeset
|
185 |
]. |
253
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|
186 |
aStream nextPut:#gt0; nextPut:lineNr. |
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|
187 |
^ self |
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changeset
|
188 |
] |
759ba0ddb672
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parents:
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diff
changeset
|
189 |
]. |
759ba0ddb672
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changeset
|
190 |
((selector == #+) or:[selector == #-]) ifTrue:[ |
759ba0ddb672
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changeset
|
191 |
(argVal == 1) ifTrue:[ |
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changeset
|
192 |
(selector == #+) ifTrue:[ |
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|
193 |
code := #plus1 |
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194 |
] ifFalse:[ |
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195 |
code := #minus1 |
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196 |
]. |
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197 |
lineNr >= 255 ifTrue:[ |
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198 |
self codeLineNumber: lineNr on: aStream for: aCompiler. |
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199 |
]. |
253
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200 |
aStream nextPut:code; nextPut:lineNr. |
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201 |
^ self |
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202 |
] |
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203 |
] |
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204 |
]. |
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205 |
argVal isNil ifTrue:[ |
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206 |
(selector == #==) ifTrue:[ |
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207 |
aStream nextPut:#isNil. |
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208 |
^ self |
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209 |
]. |
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210 |
(selector == #~~) ifTrue:[ |
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211 |
aStream nextPut:#notNil. |
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212 |
^ self |
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213 |
]. |
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214 |
] |
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|
215 |
]. |
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|
216 |
arg1 codeOn:aStream inBlock:b for:aCompiler. |
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217 |
lineNr >= 255 ifTrue:[ |
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218 |
self codeLineNumber: lineNr on: aStream for: aCompiler. |
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219 |
]. |
253
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220 |
aStream nextPut:selector. |
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221 |
(aCompiler hasLineNumber:selector) ifTrue:[ |
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222 |
aStream nextPut:lineNr. |
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|
223 |
]. |
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224 |
^ self |
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|
225 |
] |
0 | 226 |
]. |
104 | 227 |
^ super codeOn:aStream inBlock:b for:aCompiler |
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|
228 |
|
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|
229 |
"Modified: / 04-07-1999 / 19:05:13 / cg" |
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230 |
"Modified: / 13-04-2013 / 11:08:27 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
0 | 231 |
! ! |
232 |
||
1035 | 233 |
!BinaryNode methodsFor:'evaluation'! |
140 | 234 |
|
1384 | 235 |
evaluateIn:anEnvironment |
1500
3c4cb012b24b
Lazy conversion of selector strings to symbols.
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|
236 |
|
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Lazy conversion of selector strings to symbols.
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|
237 |
selector := selector asSymbol. |
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|
238 |
|
140 | 239 |
receiver isSuper ifTrue:[ |
1384 | 240 |
^ super evaluateIn:anEnvironment |
140 | 241 |
]. |
1384 | 242 |
^ (receiver evaluateIn:anEnvironment) |
243 |
perform:selector |
|
244 |
with:((argArray at:1) evaluateIn:anEnvironment) |
|
140 | 245 |
! ! |
246 |
||
1079 | 247 |
!BinaryNode methodsFor:'printing & storing'! |
0 | 248 |
|
1589 | 249 |
printOn:aStream indent:i |
250 |
|arg| |
|
0 | 251 |
|
1589 | 252 |
receiver printOn:aStream indent:i parenthized:(receiver precedence < self precedence). |
0 | 253 |
aStream space. |
1388 | 254 |
self printSelectorOn:aStream. |
0 | 255 |
aStream space. |
1589 | 256 |
arg := self arg. |
257 |
arg printOn:aStream indent:i + 4 parenthized:(arg precedence <= self precedence). |
|
0 | 258 |
|
1589 | 259 |
"Modified: / 20-04-2005 / 14:31:43 / cg" |
1388 | 260 |
! |
261 |
||
262 |
printSelectorOn:aStream |
|
263 |
selector printString printOn:aStream. |
|
0 | 264 |
! ! |
140 | 265 |
|
266 |
!BinaryNode methodsFor:'queries'! |
|
267 |
||
1589 | 268 |
precedence |
269 |
^ 50 |
|
270 |
||
271 |
"Created: / 20-04-2005 / 14:10:44 / cg" |
|
140 | 272 |
! ! |
273 |
||
2324 | 274 |
!BinaryNode methodsFor:'testing'! |
275 |
||
276 |
isBinaryMessage |
|
277 |
^ true |
|
278 |
! ! |
|
279 |
||
2607 | 280 |
!BinaryNode methodsFor:'visiting'! |
281 |
||
282 |
acceptVisitor:aVisitor |
|
283 |
"Double dispatch back to the visitor, passing my type encoded in |
|
284 |
the selector (visitor pattern)" |
|
285 |
||
286 |
"stub code automatically generated - please change if required" |
|
287 |
||
288 |
^ aVisitor visitBinaryNode:self |
|
289 |
! ! |
|
290 |
||
148 | 291 |
!BinaryNode class methodsFor:'documentation'! |
292 |
||
293 |
version |
|
3931 | 294 |
^ '$Header$' |
2324 | 295 |
! |
296 |
||
297 |
version_CVS |
|
3931 | 298 |
^ '$Header$' |
148 | 299 |
! ! |
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Emit LINE16 bytecode insn just before a SEND bytecode is emmited when
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|
300 |