"{ Encoding: utf8 }"
"
COPYRIGHT (c) 1989 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
"{ Package: 'stx:libcomp' }"
"{ NameSpace: Smalltalk }"
Parser subclass:#ByteCodeCompiler
instanceVariableNames:'codeBytes codeIndex litArray stackDelta extra lineno extraLiteral
maxStackDepth relocList methodTempVars numTemp maxNumTemp
methodClass extraOP allLiterals allIdenticalLiterals
breakpointedLines currentLineNumber'
classVariableNames:'JumpToAbsJump ShareCode ListCompiledMethods NewCodeSet
NewPrimitives'
poolDictionaries:''
category:'System-Compiler'
!
!ByteCodeCompiler class methodsFor:'documentation'!
byteCode
"
TOS - top of stack
NOS - next on stack
uu - byte-valued unsigned (0..16rFF)
uuuu - twoByte-valued unsigned (0..16rFFFF); msb-first
ll - byte-valued literal index (0..16rFF)
nn - byte-valued signed (-128..+127)
nnnn - twoByte-valued signed (16r-8000 .. 16r7FFF)
Notes:
- bytecode optimized for space, not interpreter speed,
since JITTER is assumed to be present and compensate for decoding
overhead.
- number assignments due to backward compatible extensions of the
bytecode set - reassignment & cleanup would be nice.
- codes marked with (*) make the minimal set; all others duplicate
the functionality of a minimalSet code, but provides dense encoding
definition of ST/X byteCode:
* 00 RET_TOP return TOS from current context
01 RET_NIL return nil from current context
02 RET_TRUE return true from current context
03 RET_FALSE return false from current context
04 RET_0 return 0 (zero) from current context
05 RET_SELF return the current receiver from current context
* 06 DUP_OVER push NOS (used with inlined loops)
* 07 HOME_RET_TOP return TOS from home context (method return from block)
08 uu LINENO line number information dummy
* 09 uuuu LINENO16 line number information dummy
0A PUSH_NIL push nil onto stack
0B PUSH_TRUE push true onto stack
0C PUSH_FALSE push false onto stack
0D SEND_SELF self-send
* 0E ll PUSH_LIT push a literal
0F PUSH_SELF push the current receiver onto stack
10 nn PUSH_NUM push a byte-valued smallInteger onto stack
11 nnnn PUSH_NUM16 push a twoByte-valued smallInteger onto stack
* 12 DROP pop & forget
* 13 SEND send
* 14 SUPER_SEND super-send (actually: directed send)
15 SEND0 send 0-arg message
16 SEND1 send 1-arg message
17 SEND2 send 2-arg message
18 SEND3 send 3-arg message
19 SEND_DROP send & forget result
1A SEND0_DROP send 0-arg message & forget result
1B SEND1_DROP send 1-arg message & forget result
1C SEND2_DROP send 2-arg message & forget result
1D SEND3_DROP send 3-arg message & forget result
* 1E PUSH_MARG push method arg
* 1F PUSH_MVAR push method variable
* 20 PUSH_BARG push block arg
* 21 PUSH_BVAR push block variable
* 22 PUSH_IVAR push instance variable
23 PUSH_CVAR -- obsolete -- no longer used.
* 24 PUSH_GLOB push global
* 25 STORE_MVAR pop and store into method variable
* 26 STORE_BVAR pop and store into block variable
* 27 STORE_IVAR pop and store into instance variable
28 STORE_CVAR -- obsolete -- no longer used.
* 29 STORE_GLOB pop and store into global
* 2A PUSH_OBARG push outer block arg (n levels)
2B PUSH_OBARG1 push outer block arg (1 level)
2C PUSH_OBARG2 push outer block arg (2 levels)
2D EQEQ == -> pop a,b; push a==b
2E NENE ~~ -> pop a,b; push a~~b
* 2F DUP duplicate TOS
30 EQEQ0 ==0 -> pop a; push a==0
31 NENE0 ~~0 -> pop a; push a~~0
32 JMP_FALSE pop; branch if false
33 JMP_TRUE pop; branch if true
34 JMP_NIL pop; branch if nil
35 JMP_NOTNIL pop; branch if not nil
36 JMP branch always
37 MAKE_BLOCK make a block
38 JMP_ZERO pop; branch if ==0
39 JMP_NOTZERO pop; branch if ~~0
3A JMP_EQEQ pop a,b; branch if a==b
3B JMP_NENE pop a,b; branch if a~~b
3C JMPL_FALSE like above, extended branch delta, (add +128/-128 to offs)
... ...
45 JMPL_NENE like above, extended branch delta, (add +128/-128 to offs)
46 JMPVL_FALSE like above, extended branch delta, (add +256/-256 to offs)
... ...
4F JMPVL_NENE like above, extended branch delta, (add +256/-256 to offs)
50 PUSH_MVAR1 push method variable 1 (first variable)
51 PUSH_MVAR2 push method variable 2
52 PUSH_MVAR3 push method variable 3
53 PUSH_MVAR4 push method variable 4
54 PUSH_MVAR5 push method variable 5
55 PUSH_MVAR6 push method variable 6
56 PUSH_MARG1 push method arg 1
57 PUSH_MARG2 push method arg 2
58 PUSH_MARG3 push method arg 3
59 PUSH_MARG4 push method arg 4
5A PUSH_IVAR1 push inst variable 1 (first variable)
5B PUSH_IVAR2 push inst variable 2
5C PUSH_IVAR3 push inst variable 3
5D PUSH_IVAR4 push inst variable 4
5E PUSH_IVAR5 push inst variable 5
5F PUSH_IVAR6 push inst variable 6
60 PUSH_IVAR7 push inst variable 7
61 PUSH_IVAR8 push inst variable 8
62 PUSH_IVAR9 push inst variable 9
63 PUSH_IVAR10 push inst variable 10
64 STORE_MVAR1 pop and store into method variable 1 (first variable)
65 STORE_MVAR2 pop and store into method variable 2
66 STORE_MVAR3 pop and store into method variable 3
67 STORE_MVAR4 pop and store into method variable 4
68 STORE_MVAR5 pop and store into method variable 5
69 STORE_MVAR6 pop and store into method variable 6
6A unused
6B unused
6C unused
6D unused
6E STORE_IVAR1 pop and store into inst variable 1 (first variable)
6F STORE_IVAR2 pop and store into inst variable 2
70 STORE_IVAR3 pop and store into inst variable 3
71 STORE_IVAR4 pop and store into inst variable 4
72 STORE_IVAR5 pop and store into inst variable 5
73 STORE_IVAR6 pop and store into inst variable 6
74 STORE_IVAR7 pop and store into inst variable 7
75 STORE_IVAR8 pop and store into inst variable 8
76 STORE_IVAR9 pop and store into inst variable 9
77 STORE_IVAR10 pop and store into inst variable 10
78 PUSH_0 push smallinteger 0 constant
79 PUSH_1 push smallinteger 1 constant
7A PUSH_M1 push smallinteger -1 constant
7B SEND_PLUS1 send '+ 1' to TOS; replace TOS by result
7C SEND_MINUS1 send '- 1' to TOS; replace TOS by result
7D INC_MVAR send '+ 1' to a method variable; store result into same mvar (for inlined loops)
7E DEC_MVAR send '- 1' to a method variable; store result into same mvar (for inlined loops)
7F nn RET_NUM return a smallInteger from current context
* 80 PUSH_OBVAR push outer block variable
* 81 STORE_OBVAR pop and store into outer block variable
82 SEND_EQ send #=
83 SEND_PLUS send #+
84 SEND_NE send #~=
85 SEND_MINUS send #-
86 SEND_CLASS send #class
87 SEND_AT send #at:
88 SEND_ATPUT send #at:put:
89 SEND_BITAND send #bitAnd:
8A SEND_BITOR send #bitOr:
8B PUSH_2 push constant 2
8C PUSH_BARG1 push block argument 1
8D PUSH_BARG2
8E PUSH_BARG3
8F PUSH_BARG4
* 90 PUSH_CONTEXT push thisContext
91 SEND_GT send >
92 SEND_GE send >=
93 SEND_LT send <
94 SEND_LE send <=
95 UNUSED_149 obsolete; was: send #next
96 UNUSED_150 obsolete; was: send #peek
97 SEND_VALUE send #value
98 SEND_VALUE1 send #value:
99 SEND_SIZE send #size
9A UNUSED_154
9B UNUSED_155
9C MK0BLOCK make a 0-returning block
9D MKNILBLOCK make a nil-returning block
9E UNUSED_158 obsolete; was: send #asInteger */
9F UNUSED_159 obsolete; was: send #rounded */
A0 RET_MVAR1 return method variable 1 from current context
A1 RET_MVAR2 return method variable 2 from current context
A2 RET_MVAR3
A3 RET_MVAR4
A4 RET_MVAR5
A5 RET_MVAR6 return method variable 6 from current context
A6 RET_IVAR1 return instance variable 1 from current context
A7 RET_IVAR2 return instance variable 2 from current context
A8 RET_IVAR3
A9 RET_IVAR4
AA RET_IVAR5
AB RET_IVAR6
AC RET_IVAR7
AD RET_IVAR8 return instance variable 8 from current context
AE RET_MARG1 return method arg 1 from current context
AF RET_MARG2 return method arg 1 from current context
B0 PUSH_CIVAR obsolete; push class instance variable
B1 STORE_CIVAR obsolete; store top of stack in class instance variable
B2 SEND_VALUE2 send #value:value:
B3 SEND_NOT send #not
B4 SEND_SELF0 send a 0-arg message to self
B5 SEND_SELF1 send a 1-arg message to self
B6 SEND_SELF2 send a 2-arg message to self
B7 SEND_SELF3 send a 3-arg message to self
B8 SEND_SELF_DROP0 send a 0-arg message to self forget result
B9 SEND_SELF_DROP1 send a 1-arg message to self forget result
BA SEND_SELF_DROP2 send a 2-arg message to self forget result
BB SEND_SELF_DROP3 send a 3-arg message to self forget result
BC ISNIL replace TOS by 'TOS isNil'
BD NOTNIL replace TOS by 'TOS notNil'
BE uuuu JMPA_FALSE jumps to absolute offset (2 byte hi-lo)
BF uuuu JMPA_TRUE
C0 uuuu JMPA_NIL
C1 uuuu JMPA_NOTNIL
C2 uuuu JMPA
C3 MAKE_ABLOCK
C4 uuuu JMPA_ZERO
C5 uuuu JMPA_NOTZERO
C6 uuuu JMPA_EQ
C7 uuuu JMPA_NOTEQ
C8 xx PUSH_GSPECIAL push a special global; xx specifies what:
00 Array (push 'Smalltalk at:#Array'; i.e. the Array class)
01 String (push 'Smalltalk at:#String'; i.e. the String class)
02 FloatArray
03 DoubleArray
04 Point
05 Symbol
06 Smalltalk
07 Processor
08 SmallInteger
09 Character
0A Float
0B Process
0C Set
0D IdentitySet
0E Dictionary
0F IdentityDictionary
10 Semaphore
11 OrderedCollection
C9 uuuu PUSH_LLIT push a literal (2-byte literal-number)
CA nn JMP_FALSE_L jump if top is false (+127 .. -128)
CB nn JMP_TRUE_L jump if top is true
CC UNUSED_204
CD LSEND_MSG send with 16 bit literal index */
CE LSUPERSEND_MSG super send with 16 bit literal index */
CF LSEND_SELF self-send send with 16 bit literal index */
D0 PUSH_GT0 push 'TOS > 0'; leaves original TOS as NOS
D1 UNUSED_209
D2 SEND_ARRAY_NEW use for new/basicNew; top is size (0 for Array new)
D3 SEND_BASICNEW top is class (receiver)
D4 SEND_GT0 replace TOS by result of send 'TOS > 0'
D5 SEND_NEW top is class (receiver)
D6 SEND_BASICNEWN top is class (receiver) and arg
D7 SEND_NEWN top is class (receiver) and arg
D8 SEND_LOGAND send &
D9 SEND_LOGOR send |
DA uuuu PUSH_LGLOB push global variable word index literal
DB uuuu STORE_LGLOB store global with word index literal
DC UNUSED_220
DE UNUSED_221
DF PUSH_LIT1 push 1st literal
E0 PUSH_LIT2 push 2nd literal
E1 PUSH_LIT3 push literal 3
E2 PUSH_LIT4 push literal 4
E3 PUSH_LIT5 push literal 5
E4 PUSH_LIT6 push literal 6
E5 PUSH_LIT7 push literal 7
E6 PUSH_LIT8 push literal 8
E7 SEND_MUL send #*
E8 xx SEND_SPECIAL special send; as specified by xx:
00 top send #top
01 bottom send #bottom
02 left send #left
03 right send #right
04 x send #x
05 y send #y
06 width send #width
07 height send #height
08 origin send #origin
09 extent send #extent
0A asInteger send #asInteger
0B rounded send #rounded
0C next send #next
0D peek send #peek
E9 PUSH_BVAR1 push block variable 1
EA PUSH_BVAR2 push block variable 2
EB PUSH_BVAR3 push block variable 3
EC STORE_BVAR1 store TOS in block variable 1 and drop
ED STORE_BVAR2 store TOS in block variable 2 and drop
EE STORE_BVAR3 store TOS in block variable 3 and drop
* EF BLOCK_REF internal - check if a block is referenced by TOS
F0 PUSH_LVAR push local variable 0..numArgs-1 for args; numArgs..numArgs+nLocal-1 for mVars
F1 STORE_LVAR store local variable 0..numArgs-1 for args; numArgs..numArgs+nLocal-1 for mVars
F2 STORE_OUTBLOCK_LVAR store local variable in outer context 0..numArgs-1 for args; numArgs..numArgs+nLocal-1 for bVars
F3 SWAP swap TOS with NOS
F4 UNUSED_244
F5 UNUSED_245
F6 UNUSED_246
F7 UNUSED_247
F8 UNUSED_248
F9 UNUSED_249
FA UNUSED_250
FB UNUSED_251
FC UNUSED_252
FD UNUSED_253
FE UNUSED_254
FF UNUSED_255
[author:]
Claus Gittinger
"
!
copyright
"
COPYRIGHT (c) 1989 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
documentation
"
This class performs compilation into ByteCodes.
First, parsing is done using superclass methods,
then the parse-tree is converted into an array of symbolic codes
and a relocation table;
these two are finally combined into a byteArray of the codes.
(the intermediate step through symbolic codes is for debugging
only - it may vanish in future releases)
There are many dependencies to the run-time-system (especially the
interpreter) in here - be careful when playing around ...
[Instance variables:]
codeBytes <ByteArry> bytecodes
codeIndex <SmallInteger> next index to put into code array
litArray <OrderedCollection> literals
stackDelta <SmallInteger> return value of byteCodeFor:
extra <Symbol> return value of byteCodeFor:
lineno <Boolean> return value of byteCodeFor:
extraLiteral <Symbol> return value of byteCodeFor:
maxStackDepth <SmallInteger> stack need of method
relocList <Array> used temporary for relocation
[Class variables:]
JumpToAbsJump <Dictionary> internal table to map opcodes
STCCompilationDefines passed to stc as command line arguments
STCCompilationIncludes
STCCompilationOptions
<String>
STCCompilation <Symbol> #always, #primitiveOnly or #never
controls when stc compilation is wanted
ShareCode <Boolean> reuse byteArrays for common (simple) code sequences
This is normally a 'good' optimization,
except if you plan to modify the byteCodes.
[author:]
Claus Gittinger
"
!
examples
"
a GNU-Smalltalk method:
[exBegin]
Compiler
compile:'bla
<category: ''tests''>
^ 123
'
forClass: Object
[exEnd]
"
! !
!ByteCodeCompiler class methodsFor:'initialization'!
initialize
Smalltalk vmMajorVersionNr >= 5 ifTrue:[
NewCodeSet := true.
NewPrimitives := true.
] ifFalse:[
NewCodeSet := false.
NewPrimitives := false.
].
ShareCode := true.
ListCompiledMethods := false.
"Modified: / 15.11.2001 / 17:20:51 / cg"
!
newCodeSet
^ NewCodeSet
!
newCodeSet:aBoolean
NewCodeSet := aBoolean.
"
ByteCodeCompiler newCodeSet:true
"
!
newPrimitives
^ NewPrimitives
!
newPrimitives:aBoolean
NewPrimitives := aBoolean.
"
ByteCodeCompiler newPrimitives:true
"
! !
!ByteCodeCompiler class methodsFor:'instance creation'!
new
"/ Pretty ugly hack. A caller to compiler may provide a set of breakpoints
"/ that has to be injected to the code. However, since breakpoint injection
"/ is actually done by a subclass or me, so we have to return this subclass here.
"/ This subclass-to-tranform API is bit unfortunate.
^ self ~~ ByteCodeCompiler ifTrue:[
super new.
] ifFalse:[
| breakpoints |
breakpoints := BreakpointQuery query.
breakpoints notEmptyOrNil ifTrue:[
ByteCodeCompilerWithBreakpointSupport new
breakpoints: breakpoints;
yourself.
] ifFalse:[
super new.
].
].
"Created: / 08-05-2014 / 11:01:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!ByteCodeCompiler class methodsFor:'compiling methods'!
compile:methodText forClass:classToCompileFor
"compile a source-string for a method in classToCompileFor.
Returns the new method, #Error or nil."
^ self
compile:methodText
forClass:classToCompileFor
inCategory:(self asYetUncategorizedMethodCategory)
notifying:nil
install:true
skipIfSame:false
silent:false
!
compile:aString forClass:aClass inCategory:cat
"compile a source-string for a method in classToCompileFor.
The method will get cat as category.
Returns the new method, #Error or nil."
^ self
compile:aString
forClass:aClass
inCategory:cat
notifying:nil
install:true
skipIfSame:false
silent:false
foldConstants:true
"Modified: / 30-09-2011 / 12:44:23 / cg"
!
compile:aString forClass:aClass inCategory:cat notifying:requestor
"compile a source-string for a method in classToCompileFor.
errors are forwarded to requestor.
The method will get cat as category.
Returns the new method, #Error or nil."
^ self
compile:aString
forClass:aClass
inCategory:cat
notifying:requestor
install:true
skipIfSame:false
silent:false
!
compile:aString forClass:aClass inCategory:cat notifying:requestor install:install
"compile a source-string for a method in classToCompileFor.
The install-argument controls if the method is to be installed into the
classes method-dictionary, or just to be compiled and a method object to be returned.
Errors are forwarded to requestor. The method will get cat as category.
Returns the new method, #Error or nil."
^ self
compile:aString
forClass:aClass
inCategory:cat
notifying:requestor
install:install
skipIfSame:false
silent:false
!
compile:aString forClass:aClass inCategory:cat notifying:requestor
install:install skipIfSame:skipIfSame
"compile a source-string for a method in classToCompileFor.
The install-argument controls if the method is to be installed into the
classes method-dictionary, or just to be compiled and a method object to be returned.
Errors are forwarded to requestor. The method will get cat as category.
If skipIsSame is true, and the source is the same as an existing
methods source, this is a noop (for fast fileIn).
Returns the new method, #Error or nil."
^ self
compile:aString
forClass:aClass
inCategory:cat
notifying:requestor
install:install
skipIfSame:skipIfSame
silent:false
!
compile:aString forClass:aClass inCategory:cat notifying:requestor
install:install skipIfSame:skipIfSame silent:silent
"compile a source-string for a method in aClass.
errors are forwarded to requestor.
The method will get cat as category.
if install is true, the method is installed in the class.
if skipIfSame, the method is not installed if there is no change
(used when filing in).
if silent is true, no warnings are output.
Returns the new method, #Error or nil."
^ self
compile:aString
forClass:aClass
inCategory:cat
notifying:requestor
install:install
skipIfSame:skipIfSame
silent:silent
foldConstants:true
!
compile:aStringArg forClass:aClassArg inCategory:cat notifying:requestor
install:install skipIfSame:skipIfSame silent:silent foldConstants:fold
"the basic workhorse method for compiling:
compile a source-string for a method in classToCompileFor.
errors are forwarded to requestor
(report on Transcript and return #Error, if requestor is nil).
The new method will get cat as category.
If install is true, the method will go into the classes method-table,
otherwise the method is simply returned (for anonymous methods).
If skipIsSame is true, and the source is the same as an existing
methods source, this is a noop (for fast fileIn).
The argument, silent controls if errors are to be reported.
Returns the method, #Error or nil."
^ self new
compile:aStringArg
forClass:aClassArg
inCategory:cat
notifying:requestor
install:install
skipIfSame:skipIfSame
silent:silent
foldConstants:fold
!
compile:methodText forClass:classToCompileFor install:doInstall
"compile a source-string for a method in classToCompileFor.
The install-argument controls if the method is to be installed into the
classes method-dictionary, or just to be compiled and a method object to be returned.
Returns the new method, #Error or nil."
^ self
compile:methodText
forClass:classToCompileFor
inCategory:(self defaultMethodCategory)
notifying:nil
install:doInstall
skipIfSame:false
silent:false
!
compile:methodText forClass:classToCompileFor notifying:requestor
"compile a source-string for a method in classToCompileFor.
Errors are forwarded to requestor.
Returns the new method, #Error or nil."
^ self
compile:methodText
forClass:classToCompileFor
inCategory:(self defaultMethodCategory)
notifying:requestor
install:true
skipIfSame:false
silent:false
!
compile:textOrStream in:aClass notifying:requestor ifFail:exceptionBlock
"name alias for ST-80 compatibility.
Returns the new method, or the value from exceptionBlock."
^ self new
compile:textOrStream
in:aClass
notifying:requestor
ifFail:exceptionBlock
!
compile:textOrStream in:aClass notifying:requestor install:install ifFail:exceptionBlock
"name alias for ST-80 compatibility.
Returns the new method, or the value from exceptionBlock."
^ self new
compile:textOrStream
in:aClass
notifying:requestor
install:install
ifFail:exceptionBlock
"Created: / 15-10-2010 / 10:39:27 / cg"
!
stcCompileMethod:aMethod
ParserFlags
withSTCCompilation:#always
do:[
self
compile:(aMethod source)
forClass:(aMethod mclass)
inCategory:(aMethod category)
].
! !
!ByteCodeCompiler class methodsFor:'constants'!
byteCodeFor:aSymbol
"returns the numeric code for some symbolic bytecodes."
(aSymbol == #retNil) ifTrue:[^ 1].
(aSymbol == #retTrue) ifTrue:[^ 2].
(aSymbol == #retFalse) ifTrue:[^ 3].
(aSymbol == #ret0) ifTrue:[^ 4].
(aSymbol == #retSelf) ifTrue:[^5].
(aSymbol == #retNum) ifTrue:[^ 127].
(aSymbol == #retTop) ifTrue:[^ 0].
(aSymbol == #mk0Block) ifTrue:[^ 156].
(aSymbol == #mkNilBlock) ifTrue:[^ 157].
(aSymbol == #push0) ifTrue:[^120].
(aSymbol == #push1) ifTrue:[^121].
(aSymbol == #push2) ifTrue:[^139].
(aSymbol == #pushMinus1) ifTrue:[^122].
(aSymbol == #pushNil) ifTrue:[^ 10].
(aSymbol == #pushTrue) ifTrue:[^ 11].
(aSymbol == #pushFalse) ifTrue:[^ 12].
(aSymbol == #pushSelf) ifTrue:[^ 15].
self error:'unknown instruction'.
! !
!ByteCodeCompiler class methodsFor:'defaults'!
allowExtensionsToPrivateClasses
^ ParserFlags allowExtensionsToPrivateClasses
!
asYetUncategorizedMethodCategory
^ '* As yet uncategorized *'
!
defaultMethodCategory
"/ ^ '** As yet uncategorized **'.
^ '* uncategorized *'
! !
!ByteCodeCompiler class methodsFor:'private-utilities'!
stringWithSimpleCRs:aString
|src dst ch|
dst := String writeStream.
src := aString readStream.
[src atEnd] whileFalse:[
ch := src next.
ch = Character return ifTrue:[
src peek == Character linefeed ifTrue:[
src next.
].
ch := Character cr.
].
dst nextPut:ch
].
^ dst contents
! !
!ByteCodeCompiler class methodsFor:'stc compilation defaults'!
canCreateMachineCode
"return true, if compilation to machine code is supported.
Currently, all SYSV4, Linux and WinNT/XP systems do so;
REAL/IX and HPUX9.x do not
(due to the need for dynamic loading of object files, which is not supported by those).
MIPS ULTRIX is almost finished, but not yet released.
(late note - we no longer care for REAL/IX, HPUX9.x and MIPS ULTRIX)"
^ ObjectFileLoader notNil and:[ ObjectFileLoader canLoadObjectFiles ].
"
Compiler canCreateMachineCode
"
"Modified: / 13.9.1995 / 15:15:11 / claus"
"Modified: / 3.9.1998 / 15:56:07 / cg"
!
ccCompilationOptions
<resource: #obsolete>
"return the options used with cc compilation.
This method remains here for backward compatibility (older script files)"
^ ParserFlags ccCompilationOptions
"
Compiler ccCompilationOptions
"
"Modified: 5.11.1996 / 17:38:56 / cg"
!
ccCompilationOptions:aString
<resource: #obsolete>
"define the compilation options
to be used when compiling to machine code.
These are passed to cc. Can be set from your private.rc file.
This method remains here for backward compatibility (older script files)"
ParserFlags ccCompilationOptions:aString
"
Compiler ccCompilationOptions:'-O'
Compiler ccCompilationOptions:'-O -fPIC'
Compiler ccCompilationOptions
"
"Created: 5.11.1996 / 17:37:05 / cg"
"Modified: 5.11.1996 / 17:38:32 / cg"
!
ccPath
<resource: #obsolete>
"return the path to (name of) the cc command for incremental method compilation.
This method remains here for backward compatibility (older script files)"
^ ParserFlags ccPath
"
CC := nil
Compiler ccPath
Compiler ccPath:'gcc'
"
"Modified: / 13.9.1995 / 15:15:04 / claus"
"Created: / 5.11.1996 / 17:35:40 / cg"
"Modified: / 4.9.1998 / 15:48:40 / cg"
!
ccPath:aPathOrCommandName
<resource: #obsolete>
"set the path to the cc command for incremental method compilation.
This method remains here for backward compatibility (older script files)"
ParserFlags ccPath:aPathOrCommandName
"
Compiler ccPath
Compiler ccPath:'gcc'
Compiler ccPath:'bcc32'
"
"Modified: / 13.9.1995 / 15:15:04 / claus"
"Created: / 5.11.1996 / 17:38:11 / cg"
"Modified: / 23.8.1998 / 13:58:57 / cg"
!
stcCompilation
<resource: #obsolete>
"return the flag which controls compilation to machine code.
If #always, methods are always compiled to machine code (which takes
longer, but provides faster code). If #none, methods are never compiled
to machine code, instead for non-primitive ones, compilation is to bytecode
and for primitive ones, a trapping stub is generated.
Anything else lets the compiler compile to bytecode,
except for methods containing primitive code.
This can be set from your private.rc file or from a workspace
for selective compilation to machine code.
This method remains here for backward compatibility (older script files)"
^ ParserFlags stcCompilation
"
Compiler stcCompilation
"
!
stcCompilation:how
<resource: #obsolete>
"set the flag which controls compilation to machine code.
If #always, methods are always compiled to machine code (which takes
longer, but provides faster code). If #none, methods are never compiled
to machine code, instead for non-primitive ones, compilation is to bytecode
and for primitive ones, a trapping stub is generated.
Anything else lets the compiler compile to bytecode,
except for methods containing primitive code.
This can be set from your private.rc file or from a workspace
for selective compilation to machine code.
This method remains here for backward compatibility (older script files)"
|ret|
ret := ParserFlags stcCompilation.
ParserFlags stcCompilation:how.
^ ret
"
Compiler stcCompilation:#always
Compiler stcCompilation:#never
Compiler stcCompilation:#default
"
!
stcCompilationDefines
<resource: #obsolete>
"return the defines used with stc compilation.
This method remains here for backward compatibility (older script files)"
^ ParserFlags stcCompilationDefines
!
stcCompilationDefines:aString
<resource: #obsolete>
"define the flags (for example, additional -D defines)
to be used when compiling to machine code.
These are passed to stc. Can be set from your private.rc file.
This method remains here for backward compatibility (older script files)"
ParserFlags stcCompilationDefines:aString
"
Compiler stcCompilationDefines:'-DVGL -DDEBUG'
Compiler stcCompilationDefines:'-DWIN32'
"
"Modified: / 23.8.1998 / 14:00:40 / cg"
!
stcCompilationIncludes
<resource: #obsolete>
"return the includes used with stc compilation.
This method remains here for backward compatibility (older script files)"
^ ParserFlags stcCompilationIncludes
!
stcCompilationIncludes:aString
<resource: #obsolete>
"define the include directories via additional -I flags.
These are passed to stc. Can be set in your private.rc file.
This method remains here for backward compatibility (older script files)"
ParserFlags stcCompilationIncludes:aString
"
Compiler stcCompilationIncludes:'-I/usr/local/include -I../../include'
Compiler stcCompilationIncludes:(Compiler stcCompilationIncludes , ' -I../../libxt')
"
"Modified: 18.7.1997 / 18:04:25 / cg"
!
stcCompilationOptions
<resource: #obsolete>
"return the options used with stc compilation.
This method remains here for backward compatibility (older script files)"
^ ParserFlags stcCompilationOptions
!
stcCompilationOptions:aString
<resource: #obsolete>
"define the compilation options
to be used when compiling to machine code.
These are passed to stc. Can be set from your private.rc file.
This method remains here for backward compatibility (older script files)"
ParserFlags stcCompilationOptions:aString
"
Compiler stcCompilationOptions:'+optinline'
"
!
stcModulePath
<resource: #obsolete>
"return the path, where temporary modules are created.
This method remains here for backward compatibility (older script files)"
^ ParserFlags stcModulePath
"Created: 12.7.1996 / 12:15:26 / cg"
!
stcModulePath:aPath
<resource: #obsolete>
"set the path to the directory, where temporary modules are created.
Obsolete; knowledge moved to parserFlags,
where it is also obsolete now, as this should not be set from the outside,
but instead rely totally on the userPreferences.
This method remains here for backward compatibility (older script files)"
ParserFlags stcModulePath:aPath
"Created: 12.7.1996 / 12:15:49 / cg"
!
stcPath
<resource: #obsolete>
"return the path to the stc command, or nil if not found.
This method remains here for backward compatibility (older script files)"
^ ParserFlags stcPath
"
Compiler stcPath
"
"Modified: 13.9.1995 / 14:37:26 / claus"
!
stcPath:aPath
<resource: #obsolete>
"set the path to the stc command - useful if private stc is wanted.
This method remains here for backward compatibility (older script files)"
ParserFlags stcPath:aPath
"
Compiler stcPath:'../../stc/stc'
Compiler stcPath:'..\stc\stc'
"
"Modified: / 13.9.1995 / 14:37:26 / claus"
"Modified: / 23.8.1998 / 13:59:24 / cg"
!
stcPathOf:command
"return the path to an stc command, or nil if not found."
|f d reqdSuffix cmd|
"/
"/ care for executable suffix
"/
cmd := command.
OperatingSystem isMSDOSlike ifTrue:[
reqdSuffix := 'exe'
] ifFalse:[
OperatingSystem isVMSlike ifTrue:[
reqdSuffix := 'EXE'
].
].
reqdSuffix notNil ifTrue:[
(f := cmd asFilename) suffix isEmpty ifTrue:[
cmd := (f withSuffix:reqdSuffix) name
]
].
"/
"/ for our convenience, also check in current
"/ and parent directories; even if PATH does not
"/ include them ...
"/
"/ look in current ...
d := Filename currentDirectory.
(f := d construct:cmd) isExecutable ifTrue:[
^ f pathName
].
"/ look in ../stc ...
d := d construct:'..'.
(f := (d construct:'stc') construct:cmd) isExecutable ifTrue:[
^ f pathName
].
"/ look in ../../stc ...
d := d construct:'..'.
(f := (d construct:'stc') construct:cmd) isExecutable ifTrue:[
^ f pathName
].
"/
"/ ok, stc must be installed in some directory along the PATH
"/
^ OperatingSystem pathOfCommand:command
"
Compiler stcPathOf:'stc'
"
"Created: 13.9.1995 / 14:37:16 / claus"
! !
!ByteCodeCompiler methodsFor:'Compatibility-ST80'!
compile:textOrStream in:aClass notifying:requestor ifFail:exceptionBlock
"name alias for ST-80 compatibility"
^ self
compile:textOrStream
forClass:aClass
inCategory:(self class defaultMethodCategory)
notifying:requestor
install:true
skipIfSame:false
silent:false
foldConstants:true
ifFail:exceptionBlock.
!
compile:textOrStream in:aClass notifying:requestor install:install ifFail:exceptionBlock
"name alias for ST-80 compatibility"
^ self
compile:textOrStream
forClass:aClass
inCategory:(self class defaultMethodCategory)
notifying:requestor
install:install
skipIfSame:false
silent:false
foldConstants:true
ifFail:exceptionBlock.
"Created: / 15-10-2010 / 10:39:42 / cg"
!
from:aStream class:aClass context:ctx notifying:aRequestor
classToCompileFor := aClass.
self source:aStream.
self setClassToCompileFor:aClass.
self notifying:aRequestor.
"Created: / 30-01-2011 / 03:38:00 / cg"
! !
!ByteCodeCompiler methodsFor:'accessing'!
code
"return the bytecode array - only valid after code-generation"
^ codeBytes
!
literalArray
"return the literal array - only valid after parsing"
^ litArray
!
maxStackDepth
"return the stack-need of the method - only valid after code-generation"
^ maxStackDepth
!
methodClass
^ methodClass ? Method
!
methodClass:aClass
methodClass := aClass
! !
!ByteCodeCompiler methodsFor:'code generation'!
byteCodeFor:aSymbol
"given a symbolic instruction, return the corresponding bytecode.
as a side-effect, leave number of bytes pushed/popped by this instr.
in stackDelta, and, if the instruction needs extra arguments, leave
this info in extra. Also lineno is set to true, if this code has line
information and extraLiteral is set if any hidden send is performed by it."
"standard bytecodes"
(aSymbol == #pushNil) ifTrue:[stackDelta := 1. ^ 10].
(aSymbol == #pushTrue) ifTrue:[stackDelta := 1. ^ 11].
(aSymbol == #pushFalse) ifTrue:[stackDelta := 1. ^ 12].
(aSymbol == #pushLit) ifTrue:[stackDelta := 1. extra := #lit. ^ 14].
(aSymbol == #pushLitS) ifTrue:[stackDelta := 1. extra := #index. ^ 14].
(aSymbol == #pushSelf) ifTrue:[stackDelta := 1. ^ 15].
(aSymbol == #pushNum) ifTrue:[stackDelta := 1. extra := #number. ^ 16].
(aSymbol == #pushMethodArg) ifTrue:[stackDelta := 1. extra := #index. ^ 30].
(aSymbol == #pushMethodVar) ifTrue:[stackDelta := 1. extra := #index. ^ 31].
(aSymbol == #pushBlockArg) ifTrue:[stackDelta := 1. extra := #index. ^ 32].
(aSymbol == #pushBlockVar) ifTrue:[stackDelta := 1. extra := #index. ^ 33].
(aSymbol == #pushInstVar) ifTrue:[stackDelta := 1. extra := #index. ^ 34].
(aSymbol == #pushOuterBlockArg) ifTrue:[stackDelta := 1. extra := #indexLevel. ^ 42].
(aSymbol == #pushOuterBlockVar) ifTrue:[stackDelta := 1. extra := #indexLevel. ^ 128].
(aSymbol == #retTop) ifTrue:[stackDelta := -1. ^ 0].
(aSymbol == #retSelf) ifTrue:[^5].
(aSymbol == #==) ifTrue:[stackDelta := -1. extraLiteral := aSymbol. ^ 45].
(aSymbol == #~~) ifTrue:[stackDelta := -1. extraLiteral := aSymbol. ^ 46].
(aSymbol == #falseJump) ifTrue:[stackDelta := -1. extra := #offset. ^ 50].
(aSymbol == #trueJump) ifTrue:[stackDelta := -1. extra := #offset. ^ 51].
(aSymbol == #nilJump) ifTrue:[stackDelta := -1. extra := #offset. ^ 52].
(aSymbol == #notNilJump) ifTrue:[stackDelta := -1. extra := #offset. ^ 53].
(aSymbol == #jump) ifTrue:[extra := #offset. ^ 54].
(aSymbol == #makeBlock) ifTrue:[stackDelta := 1. extra := #offsetNvarNarg. ^ 55].
(aSymbol == #zeroJump) ifTrue:[stackDelta := -1. extra := #offset. ^ 56].
(aSymbol == #notZeroJump) ifTrue:[stackDelta := -1. extra := #offset. ^ 57].
(aSymbol == #eqJump) ifTrue:[stackDelta := -2. extra := #offset. ^ 58].
(aSymbol == #notEqJump) ifTrue:[stackDelta := -2. extra := #offset. ^ 59].
(aSymbol == #lineno) ifTrue:[lineno := true. ^ 8].
(aSymbol == #lineno16) ifTrue:[lineno := true. ^ 9].
(aSymbol == #send) ifTrue:[lineno := true. extra := #special. ^ 19].
(aSymbol == #superSend) ifTrue:[lineno := true. extra := #special. ^ 20].
(aSymbol == #sendSelf) ifTrue:[lineno := true. extra := #special. ^ 13].
(aSymbol == #drop) ifTrue:[stackDelta := -1. ^ 18].
(aSymbol == #dup) ifTrue:[stackDelta := 1. ^ 47].
(aSymbol == #storeMethodVar) ifTrue:[extra := #index. stackDelta := -1. ^ 37].
(aSymbol == #storeBlockVar) ifTrue:[extra := #index. stackDelta := -1. ^ 38].
(aSymbol == #storeInstVar) ifTrue:[extra := #index. stackDelta := -1. ^ 39].
(aSymbol == #pushClassVarS) ifTrue:[stackDelta := 1. extra := #speciallitS. ^ 35].
(aSymbol == #pushGlobalS) ifTrue:[stackDelta := 1. extra := #speciallitS. ^ 36].
(aSymbol == #storeClassVarS) ifTrue:[extra := #speciallitS.stackDelta := -1. ^ 40].
(aSymbol == #storeGlobalS) ifTrue:[extra := #speciallitS. stackDelta := -1. ^ 41].
(aSymbol == #pushSpecialGlobal) ifTrue:[stackDelta := 1. extra := #index. ^ 200].
(aSymbol == #storeOuterBlockVar) ifTrue:[stackDelta := -1. extra := #indexLevel. ^ 129].
(aSymbol == #pushClassInstVar) ifTrue:[stackDelta := 1. extra := #index. ^ 176].
(aSymbol == #storeClassInstVar) ifTrue:[extra := #index.stackDelta := -1. ^ 177].
"optimized bytecodes"
(aSymbol == #pushMethodVar1) ifTrue:[stackDelta := 1. ^80].
(aSymbol == #pushMethodVar2) ifTrue:[stackDelta := 1. ^81].
(aSymbol == #pushMethodVar3) ifTrue:[stackDelta := 1. ^82].
(aSymbol == #pushMethodVar4) ifTrue:[stackDelta := 1. ^83].
(aSymbol == #pushMethodVar5) ifTrue:[stackDelta := 1. ^84].
(aSymbol == #pushMethodVar6) ifTrue:[stackDelta := 1. ^85].
(aSymbol == #pushMethodArg1) ifTrue:[stackDelta := 1. ^86].
(aSymbol == #pushMethodArg2) ifTrue:[stackDelta := 1. ^87].
(aSymbol == #pushMethodArg3) ifTrue:[stackDelta := 1. ^88].
(aSymbol == #pushMethodArg4) ifTrue:[stackDelta := 1. ^89].
(aSymbol == #retNil) ifTrue:[^ 1].
(aSymbol == #retTrue) ifTrue:[^ 2].
(aSymbol == #retFalse) ifTrue:[^ 3].
(aSymbol == #ret0) ifTrue:[^ 4].
(aSymbol == #retNum) ifTrue:[extra := #number. ^ 127].
(aSymbol == #homeRetTop) ifTrue:[^ 7].
(aSymbol == #pushNum16) ifTrue:[stackDelta := 1. extra := #number16. ^ 17].
(aSymbol == #push0) ifTrue:[stackDelta := 1. ^120].
(aSymbol == #push1) ifTrue:[stackDelta := 1. ^121].
(aSymbol == #push2) ifTrue:[stackDelta := 1. ^139].
(aSymbol == #pushMinus1) ifTrue:[stackDelta := 1. ^122].
(aSymbol == #send0) ifTrue:[lineno := true. extra := #index. ^21].
(aSymbol == #send1) ifTrue:[lineno := true. extra := #index. stackDelta := -1. ^22].
(aSymbol == #send2) ifTrue:[lineno := true. extra := #index. stackDelta := -2. ^23].
(aSymbol == #send3) ifTrue:[lineno := true. extra := #index. stackDelta := -3. ^24].
(aSymbol == #sendSelf0) ifTrue:[lineno := true. extra := #index. stackDelta := 1. ^180].
(aSymbol == #sendSelf1) ifTrue:[lineno := true. extra := #index. ^181].
(aSymbol == #sendSelf2) ifTrue:[lineno := true. extra := #index. stackDelta := -1. ^182].
(aSymbol == #sendSelf3) ifTrue:[lineno := true. extra := #index. stackDelta := -2. ^183].
(aSymbol == #sendSelfDrop0) ifTrue:[lineno := true. extra := #index. ^184].
(aSymbol == #sendSelfDrop1) ifTrue:[lineno := true. extra := #index. stackDelta := -1. ^185].
(aSymbol == #sendSelfDrop2) ifTrue:[lineno := true. extra := #index. stackDelta := -2. ^186].
(aSymbol == #sendSelfDrop3) ifTrue:[lineno := true. extra := #index. stackDelta := -3. ^187].
(aSymbol == #sendDrop) ifTrue:[lineno := true. extra := #special. ^25].
(aSymbol == #sendDrop0) ifTrue:[lineno := true. extra := #index. stackDelta := -1. ^26].
(aSymbol == #sendDrop1) ifTrue:[lineno := true. extra := #index. stackDelta := -2. ^27].
(aSymbol == #sendDrop2) ifTrue:[lineno := true. extra := #index. stackDelta := -3. ^28].
(aSymbol == #sendDrop3) ifTrue:[lineno := true. extra := #index. stackDelta := -4. ^29].
(aSymbol == #pushInstVar1) ifTrue:[stackDelta := 1. ^90].
(aSymbol == #pushInstVar2) ifTrue:[stackDelta := 1. ^91].
(aSymbol == #pushInstVar3) ifTrue:[stackDelta := 1. ^92].
(aSymbol == #pushInstVar4) ifTrue:[stackDelta := 1. ^93].
(aSymbol == #pushInstVar5) ifTrue:[stackDelta := 1. ^94].
(aSymbol == #pushInstVar6) ifTrue:[stackDelta := 1. ^95].
(aSymbol == #pushInstVar7) ifTrue:[stackDelta := 1. ^96].
(aSymbol == #pushInstVar8) ifTrue:[stackDelta := 1. ^97].
(aSymbol == #pushInstVar9) ifTrue:[stackDelta := 1. ^98].
(aSymbol == #pushInstVar10) ifTrue:[stackDelta := 1. ^99].
(aSymbol == #storeMethodVar1) ifTrue:[stackDelta := -1. ^100].
(aSymbol == #storeMethodVar2) ifTrue:[stackDelta := -1. ^101].
(aSymbol == #storeMethodVar3) ifTrue:[stackDelta := -1. ^102].
(aSymbol == #storeMethodVar4) ifTrue:[stackDelta := -1. ^103].
(aSymbol == #storeMethodVar5) ifTrue:[stackDelta := -1. ^104].
(aSymbol == #storeMethodVar6) ifTrue:[stackDelta := -1. ^105].
(aSymbol == #storeInstVar1) ifTrue:[stackDelta := -1. ^110].
(aSymbol == #storeInstVar2) ifTrue:[stackDelta := -1. ^111].
(aSymbol == #storeInstVar3) ifTrue:[stackDelta := -1. ^112].
(aSymbol == #storeInstVar4) ifTrue:[stackDelta := -1. ^113].
(aSymbol == #storeInstVar5) ifTrue:[stackDelta := -1. ^114].
(aSymbol == #storeInstVar6) ifTrue:[stackDelta := -1. ^115].
(aSymbol == #storeInstVar7) ifTrue:[stackDelta := -1. ^116].
(aSymbol == #storeInstVar8) ifTrue:[stackDelta := -1. ^117].
(aSymbol == #storeInstVar9) ifTrue:[stackDelta := -1. ^118].
(aSymbol == #storeInstVar10) ifTrue:[stackDelta := -1. ^119].
(aSymbol == #pushLit1) ifTrue:[stackDelta := 1. ^ 222].
(aSymbol == #pushLit2) ifTrue:[stackDelta := 1. ^ 223].
(aSymbol == #pushLit3) ifTrue:[stackDelta := 1. ^ 224].
(aSymbol == #pushLit4) ifTrue:[stackDelta := 1. ^ 225].
(aSymbol == #pushLit5) ifTrue:[stackDelta := 1. ^ 226].
(aSymbol == #pushLit6) ifTrue:[stackDelta := 1. ^ 227].
(aSymbol == #pushLit7) ifTrue:[stackDelta := 1. ^ 228].
(aSymbol == #pushLit8) ifTrue:[stackDelta := 1. ^ 229].
(aSymbol == #retMethodVar1) ifTrue:[^160].
(aSymbol == #retMethodVar2) ifTrue:[^161].
(aSymbol == #retMethodVar3) ifTrue:[^162].
(aSymbol == #retMethodVar4) ifTrue:[^163].
(aSymbol == #retMethodVar5) ifTrue:[^164].
(aSymbol == #retMethodVar6) ifTrue:[^165].
(aSymbol == #retInstVar1) ifTrue:[^166].
(aSymbol == #retInstVar2) ifTrue:[^167].
(aSymbol == #retInstVar3) ifTrue:[^168].
(aSymbol == #retInstVar4) ifTrue:[^169].
(aSymbol == #retInstVar5) ifTrue:[^170].
(aSymbol == #retInstVar6) ifTrue:[^171].
(aSymbol == #retInstVar7) ifTrue:[^172].
(aSymbol == #retInstVar8) ifTrue:[^173].
(aSymbol == #retMethodArg1) ifTrue:[^174].
(aSymbol == #retMethodArg2) ifTrue:[^175].
(aSymbol == #pushBlockArg1) ifTrue:[stackDelta := 1. ^140].
(aSymbol == #pushBlockArg2) ifTrue:[stackDelta := 1. ^141].
(aSymbol == #pushBlockArg3) ifTrue:[stackDelta := 1. ^142].
(aSymbol == #pushBlockArg4) ifTrue:[stackDelta := 1. ^143].
(aSymbol == #pushOuter1BlockArg) ifTrue:[stackDelta := 1. extra := #index. ^ 43].
(aSymbol == #pushOuter2BlockArg) ifTrue:[stackDelta := 1. extra := #index. ^ 44].
(aSymbol == #=) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^130].
(aSymbol == #+) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^131].
(aSymbol == #~=) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^132].
(aSymbol == #-) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^133].
(aSymbol == #*) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^230].
(aSymbol == #class) ifTrue:[extraLiteral := aSymbol. ^134].
"/ (aSymbol == #x) ifTrue:[lineno := true. extraLiteral := aSymbol. ^106].
"/ (aSymbol == #y) ifTrue:[lineno := true. extraLiteral := aSymbol. ^107].
"/ (aSymbol == #width) ifTrue:[lineno := true. extraLiteral := aSymbol. ^108].
"/ (aSymbol == #height) ifTrue:[lineno := true. extraLiteral := aSymbol. ^109].
"/ (aSymbol == #origin) ifTrue:[lineno := true. extraLiteral := aSymbol. ^154].
"/ (aSymbol == #extent) ifTrue:[lineno := true. extraLiteral := aSymbol. ^155].
(aSymbol == #at:) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^135].
(aSymbol == #at:put:)ifTrue:[lineno := true. stackDelta := -2. extraLiteral := aSymbol. ^136].
(aSymbol == #bitAnd:) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^137].
(aSymbol == #bitOr:) ifTrue:[lineno := true. stackDelta := -1. extraLiteral := aSymbol. ^138].
(aSymbol == #plus1) ifTrue:[lineno := true. extraLiteral := #+. ^123].
(aSymbol == #minus1) ifTrue:[lineno := true. extraLiteral := #-. ^124].
(aSymbol == #incMethodVar) ifTrue:[lineno := true. extraLiteral := #+. extra := #index. ^125].
(aSymbol == #decMethodVar) ifTrue:[lineno := true. extraLiteral := #-. extra := #index. ^126].
(aSymbol == #eq0) ifTrue:[extraLiteral := #==. ^48].
(aSymbol == #ne0) ifTrue:[extraLiteral := #~~. ^49].
(aSymbol == #>) ifTrue:[lineno := true. extraLiteral := aSymbol. stackDelta := -1. ^ 145].
(aSymbol == #>=) ifTrue:[lineno := true. extraLiteral := aSymbol. stackDelta := -1. ^ 146].
(aSymbol == #<) ifTrue:[lineno := true. extraLiteral := aSymbol. stackDelta := -1. ^ 147].
(aSymbol == #<=) ifTrue:[lineno := true. extraLiteral := aSymbol. stackDelta := -1. ^ 148].
"/ (aSymbol == #next) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 149].
"/ (aSymbol == #peek) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 150].
(aSymbol == #value) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 151].
(aSymbol == #value:) ifTrue:[lineno := true. extraLiteral := aSymbol. stackDelta := -1. ^ 152].
(aSymbol == #value:value:) ifTrue:[lineno := true. extraLiteral := aSymbol. stackDelta := -2. ^ 178].
(aSymbol == #size) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 153].
"/ (aSymbol == #asInteger) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 158].
"/ (aSymbol == #rounded) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 159].
(aSymbol == #mk0Block) ifTrue:[^ 156].
(aSymbol == #mkNilBlock) ifTrue:[^ 157].
(aSymbol == #gt0) ifTrue:[lineno := true. extraLiteral := #>. ^ 212].
(aSymbol == #pushgt0) ifTrue:[lineno := true. stackDelta := 1. extraLiteral := #>. ^ 208].
(aSymbol == #basicNew) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 211].
(aSymbol == #new) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 213].
(aSymbol == #basicNew:) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 214].
(aSymbol == #new:) ifTrue:[lineno := true. extraLiteral := aSymbol. ^ 215].
(aSymbol == #pushBlockVar1) ifTrue:[stackDelta := 1. ^ 232].
(aSymbol == #pushBlockVar2) ifTrue:[stackDelta := 1. ^ 233].
(aSymbol == #pushBlockVar3) ifTrue:[stackDelta := 1. ^ 234].
(aSymbol == #storeBlockVar1) ifTrue:[stackDelta := -1. ^ 235].
(aSymbol == #storeBlockVar2) ifTrue:[stackDelta := -1. ^ 236].
(aSymbol == #storeBlockVar3) ifTrue:[stackDelta := -1. ^ 237].
(aSymbol == #falseJumpabs) ifTrue:[stackDelta := -1. extra := #absoffset. ^ 190].
(aSymbol == #trueJumpabs) ifTrue:[stackDelta := -1. extra := #absoffset. ^ 191].
(aSymbol == #nilJumpabs) ifTrue:[stackDelta := -1. extra := #absoffset. ^ 192].
(aSymbol == #notNilJumpabs) ifTrue:[stackDelta := -1. extra := #absoffset. ^ 193].
(aSymbol == #jumpabs) ifTrue:[extra := #absoffset. ^ 194].
(aSymbol == #makeBlockabs) ifTrue:[stackDelta := 1. extra := #absoffsetNvarNarg. ^ 195].
(aSymbol == #zeroJumpabs) ifTrue:[stackDelta := -1. extra := #absoffset. ^ 196].
(aSymbol == #notZeroJumpabs) ifTrue:[stackDelta := -1. extra := #absoffset. ^ 197].
(aSymbol == #eqJumpabs) ifTrue:[stackDelta := -2. extra := #absoffset. ^ 198].
(aSymbol == #notEqJumpabs) ifTrue:[stackDelta := -2. extra := #absoffset. ^ 199].
(aSymbol == #pushThisContext) ifTrue:[stackDelta := 1. ^ 144].
(aSymbol == #isNil) ifTrue:["extraLiteral := aSymbol. -- could be synthetic" ^ 188].
(aSymbol == #notNil) ifTrue:["extraLiteral := aSymbol. -- could be synthetic" ^ 189].
(aSymbol == #not) ifTrue:[extraLiteral := aSymbol. lineno := true. ^ 179].
(aSymbol == #&) ifTrue:[extraLiteral := aSymbol. lineno := true. ^ 216].
(aSymbol == #|) ifTrue:[extraLiteral := aSymbol. lineno := true. ^ 217].
(aSymbol == #pushClassVarL) ifTrue:[stackDelta := 1. extra := #speciallitL. ^ 218].
(aSymbol == #pushGlobalL) ifTrue:[stackDelta := 1. extra := #speciallitL. ^ 218].
(aSymbol == #storeClassVarL) ifTrue:[extra := #speciallitL.stackDelta := -1. ^ 219].
(aSymbol == #storeGlobalL) ifTrue:[extra := #speciallitL. stackDelta := -1. ^ 219].
(aSymbol == #pushLitL) ifTrue:[stackDelta := 1. extra := #unsigned16. ^ 201].
(aSymbol == #sendL) ifTrue:[lineno := true. extra := #specialL. ^ 205].
(aSymbol == #sendSelfL) ifTrue:[lineno := true. extra := #specialL. ^ 207].
(aSymbol == #sendDropL) ifTrue:[lineno := true. extra := #specialL. ^ 204].
(aSymbol == #superSendL) ifTrue:[lineno := true. extra := #specialL. ^ 206].
(aSymbol == #top) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #bottom) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #left) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #right) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #x) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #y) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #width) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #height) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #origin) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #extent) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #next) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #peek) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #asInteger) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #rounded) ifTrue:[lineno := true. extraLiteral := aSymbol. extra := #specialSend. ^ 231].
(aSymbol == #blockRef) ifTrue:[stackDelta := 0. ^ 238].
(aSymbol == #over) ifTrue:[stackDelta := 1. ^ 6].
(aSymbol == #sendVL) ifTrue:[lineno := true. extra := #specialVL. extraOP := 0. ^ 204].
(aSymbol == #superSendVL) ifTrue:[lineno := true. extra := #specialVL. extraOP := 1. ^ 204].
(aSymbol == #pushLitVL) ifTrue:[stackDelta := 1. extra := #unsigned32. extraOP := 2. ^ 204].
(aSymbol == #pushGlobalVL) ifTrue:[stackDelta := 1. extra := #speciallitVL. extraOP := 3. ^ 204].
(aSymbol == #storeGlobalVL) ifTrue:[stackDelta := -1. extra := #speciallitVL. extraOP := 4. ^ 204].
"/ the next 2 are to be obsoleted soon (renamed as MethodLocal)
(aSymbol == #pushLocal) ifTrue:[ stackDelta := 1. extra := #index. ^ 239].
(aSymbol == #storeLocal) ifTrue:[ stackDelta := -1. extra := #index. ^ 240].
(aSymbol == #pushMethodLocal) ifTrue:[ stackDelta := 1. extra := #index. ^ 239].
(aSymbol == #storeMethodLocal) ifTrue:[ stackDelta := -1. extra := #index. ^ 240].
(aSymbol == #storeBlockLocal) ifTrue:[ stackDelta := -1. extra := #index. ^ 241].
(aSymbol == #storeOuterBlockLocal) ifTrue:[ stackDelta := -1. extra := #indexLevel. ^ 242].
(aSymbol == #swap) ifTrue:[stackDelta := 0. ^ 243].
self codeGeneratorError:'invalid code symbol'.
"Modified: / 03-09-1995 / 12:58:47 / claus"
"Modified: / 25-10-2011 / 21:56:43 / cg"
"Modified (comment): / 31-10-2011 / 11:34:37 / cg"
!
checkForCommonCode:symbolicCodeArray
"hook to return the code for common code sequences.
This reduces the in-memory number of byteArrays somewhat.
Not yet fully implemented - just an idea ... there is certainly more to do here
(does it make sense to scan all methods, collect code in a set and unify things
automatically in the background - or upon request ?)"
|sz insn1|
(sz := symbolicCodeArray size) == 2 ifTrue:[
"/
"/ a very common sequence: return the first literal
"/
(insn1 := symbolicCodeArray at:1) == #pushLit1 ifTrue:[
(symbolicCodeArray at:2) == #retTop ifTrue:[
^ #[222 0]
]
]
].
sz == 1 ifTrue:[
"/
"/ other common sequences: return the receiver, nil, true or false
"/
(insn1 := symbolicCodeArray at:1) == #retSelf ifTrue:[
^ #[5]
].
insn1 == #retNil ifTrue:[
^ #[1]
].
insn1 == #retTrue ifTrue:[
^ #[2]
].
insn1 == #retFalse ifTrue:[
^ #[3]
].
].
^ nil
!
checkForPrimitiveCode:nr
"return the code for an ST-80 primitive method.
Since many primitives available on ST-80 should also be available
somewhere in ST/X, this may work for many primitive numbers.
However, more information is needed and more things to be added below.
This was added to allow emulation of (some) ST-80
primitives (to fileIn RemoteInvocation & Monitor41 packages)"
|cls sel|
(nr == 75) ifTrue:[ cls := Object. sel := #identityHash ].
(nr == 110) ifTrue:[ cls := Object. sel := #== ].
(nr == 111) ifTrue:[ cls := Object. sel := #class ].
"
should add more here, to be able to fileIn ST-80 and Squeak methods
containing primitive calls (who gives me the numbers ... ?)
mhmh - got some ..."
"/ ST80 and Squeak common:
"/ 18 Number @
"/ 41 Float +
"/ 42 Float -
"/ 49 Float *
"/ 50 Float /
"/ 52 Float fractionPart
"/ 54 Float timesTwoPower:
"/ ST80:
"/
"/ 18 Number @
"/ 21 LargePositiveInteger +
"/ 22 LargePositiveInteger -
"/ 29 LargePositiveInteger *
"/ 30 LargePositiveInteger /
"/ 31 LargePositiveInteger \\
"/ 32 LargePositiveInteger //
"/ 34 LargePositiveInteger bitAnd:
"/ 35 LargePositiveInteger bitOr:
"/ 36 LargePositiveInteger bitXor:
"/ 37 LargePositiveInteger bitShift:
"/ 40 SmallInteger asFloat
"/ 41 Float +
"/ 42 Float -
"/ 49 Float *
"/ 50 Float /
"/ 52 Float fractionPart
"/ 54 Float timesTwoPower:
"/ 70 Behavior basicNew
"/ 71 Behavior basicNew:
"/ 89 Behavior flushVMmethodCache
"/ 91 InputState primCursorLocPut:
"/ 105 ByteArray replaceElementsFrom:to:withByteArray:startingAt:
"/ 223 ByteString =
"/ 306 ObjectMemory class sizesAtStartup
"/ 307 ObjectMemory class defaultSizesAtStartup
"/ 309 ObjectMemory class defaultThresholds
"/ 326 ObjectMemory class getMemoryUsageAndZeroFragmentationStatisticsIf:
"/ 395 ExternalInterface ???
"/ 400 FormBitmap class newWidth:height:
"/ 414 TwoByteString replaceElementsFrom:to:withTwoByteString:startingAt:
"/ 415 TwoByteString =
"/ 417 String trueCompare:
"/ 418 ByteString nextIndexOf:from:to:
"/ 419 ByteString prevIndexOf:from:to:
"/ 422 WeakArray indexOf:replaceWith:startingAt:stoppingAt:
"/ 522 Behavior flushVMmethodCacheEntriesFor:
"/ 524 Context nFromVPC:
"/ 525 Context vFromNPC:
"/ 532 Object shallowCopy
"/ 536 Behavior atomicAllInstances
"/ 537 Object allOwners
"/ 538 ObjectMemory class allObjects
"/ 546 UninterpretedBytes longAt:
"/ 548 UninterpretedBytes floatAt:
"/ 550 UninterpretedBytes longFloatAt:
"/ 544 UninterpretedBytes unsignedLongAt:
"/ 559 ByteArray replaceBytesFrom:to:with:startingAt:
"/ 560 Double class fromNumber:
"/ 561 Double +
"/ 562 Double -
"/ 569 Double *
"/ 570 Double /
"/ 572 Double fractionPart
"/ 574 Double timesTwoPower:
"/ 576 Double sin
"/ 577 Double cos
"/ 578 Double tan
"/ 579 Double arcSin
"/ 580 Double arcCos
"/ 581 Double arcTan
"/ 582 Double sqrt
"/ 583 Double ln
"/ 584 Double exp
"/ 585 Double raisedTo:
"/ 587 Double floorLog10
"/ 588 Double asFloat
"/ 591 Float cos
"/ 592 Float arcSin
"/ 593 Float arcCos
"/ 600 Float sin
"/ 601 Float tan
"/ 602 Float arcTan
"/ 603 Float sqrt
"/ 604 Float ln
"/ 605 Float exp
"/ 606 Float raisedTo:
"/ 609 Float floorLog10
"/ 610 Filename getDatesErrInto:
"/ 614 DosFilename class getVolumes
"/ 615 UnixFilename primSetProtection:errInto:
"/ 616 UnixFilename class primSetCreationMask:errInto:
"/ 617 UnixFilename primGetProtectionErrInto:
"/ 620 Filename listDirectoryErrInto:
"/ 621 Filename deleteErrInto:
"/ 622 Filename isDirectoryErrInto:
"/ 623 Filename renameTo:errInto:
"/ 624 Filename makeDirectoryErrInto:
"/ 625 Filename class defaultDirectoryErrInto:
"/ 626 Filename fileSizeErrInto:
"/ 627 Filename isWritableErrInto:
"/ 628 Filename setWritable:errInto:
"/ 629 Filename existsErrInto:
"/ 630 SocketAccessor setOptionsLevel:name:value:
"/ 631 SocketAccessor getOptionsLevel:name:
"/ 632 SocketAccessor primGetName
"/ 633 SocketAccessor primGetPeer
"/ 634 SocketAccessor atMark
"/ 637 UnixTtyAccessor primGetOptions
"/ 638 UnixTtyAccessor setOptions:
"/ 639 UnixRealTtyAccessor modemBits:mask:sendBreak:
"/ 640 IPSocketAddress class primHostAddressByName:
"/ 641 IPSocketAddress class netAddressByName:
"/ 642 IPSocketAddress class protocolNumberByName:
"/ 643 IPSocketAddress class servicePortByName:
"/ 645 IPSocketAddress class primHostNameByAddress:
"/ 646 IPSocketAddress class netNameByAddress:
"/ 647 IPSocketAddress class protocolNameByNumber:
"/ 648 IPSocketAddress class serviceNameByPort:
"/ 649 SocketAccessor class getHostname
"/ 650 Filename primOpenFileNamed:direction:creation:errorInto:
"/ 651 IOAccessor primClose
"/ 652 UnixPipeAccessor class primPipeErrorInto:
"/ 653 UnixPseudoTtyAccessor class primPtyErrorInto:
"/ 654 SocketAccessor class primPairErrorInto:
"/ 655 UnixRealTtyAccessor class primOpen:errInto:
"/ 660 IOAccessor primReadInto:startingAt:for:
"/ 661 IOAccessor primWriteFrom:startingAt:for:
"/ 662 IOAccessor primSeekTo:
"/ 664 IOAccessor truncateTo:
"/ 665 DosDiskFileAccessor commit
"/ 666 IOAccessor primGetSize
"/ 667 MacDiskFileAccessor lock:for:
"/ 669 UnixIOAccessor bytesForRead
"/ 670 SocketAccessor class primFamily:type:protocol:errInto:
"/ 671 SocketAccessor primAccept
"/ 672 SocketAccessor bindTo:
"/ 673 SocketAccessor listenFor:
"/ 674 SocketAccessor primConnectTo:
"/ 675 SocketAccessor primReceiveFrom:buffer:start:for:flags:
"/ 676 SocketAccessor sendTo:buffer:start:for:flags:
"/ 677 SocketAccessor shutdown:
"/ 681 UnixProcess class primFork:arguments:environment:descriptors:errorTo:
"/ 682 UnixProcess class reapOne
"/ 683 UnixProcess kill:
"/ 690 CEnvironment class primEnvironment
"/ 697 OSErrorHolder class errorDescriptionFor:
"/ 697 ErrorHolder class errorDescriptionFor:
"/ 698 SocketAccessor class primInit:
"/ 700 ParagraphEditor class getExternalSelectionOrNil:
"/ 701 ParagraphEditor class putExternalSelection:with:
"/ 705 Screen ringBell
"/ 706 Cursor class primOpenImage:mask:hotSpotX:hotSpotY:background:foreground:
"/ 707 Cursor primBeCursor
"/ 708 Cursor primFreeCursor
"/ 772 SoundManager enumerateSoundsFrom:
"/ 773 SoundManager playSoundFrom:sound:
"/ 774 SoundManager simpleBeep:
"/ 775 Pixmap primFromClipboard
"/ 776 Pixmap toClipboard
"/ 808 Context findNextMarkedUpTo:
"/ 809 Context terminateTo:
"/ 710 DosTtyAccessor class primOpen:errInto:
"/ 711 DosTtyAccessor primClose
"/ 712 DosTtyAccessor primReadInto:startingAt:for:
"/ 713 DosTtyAccessor primWriteFrom:startingAt:for:
"/ 714 DosTtyAccessor primGetOptions
"/ 715 DosTtyAccessor primSetOptions:
"/ 716 DosTtyAccessor setSem:forWrite:
"/ 717 DosTtyAccessor modemBits:mask:sendBreak:
"/ 750 MacFilename class getVolumes
"/ 752 MacFilename primSetCreator:type:errInto:
"/ 754 MacIOAccessor class getAccessories
"/ 755 MacIOAccessor class runAccessory:
"/ 756 MacOSFilename class getFileTypes:errInto:
"/ 757 MacOSFilename putFileWithPrompt:errInto:
"/ 758 MacOSFilename getFileInfoErrInto:
"/ 759 MacOSFilename stringFromVRefErrInto:
"/ 761 MacOSFilename class getStartupFilesErrInto:
"/ 770 DosFilename printPSFileErrInto:
"/ 771 DosFilename printTextFileErrInto:
"/ 780 MacTtyAccessor class primOpen:errInto:
"/ 781 MacTtyAccessor primClose
"/ 782 MacTtyAccessor primReadInto:startingAt:for:
"/ 783 MacTtyAccessor primWriteFrom:startingAt:for:
"/ 786 MacTtyAccessor primGetOptions
"/ 787 MacTtyAccessor setOptions:
"/ 788 MacTtyAccessor primBreak:
"/ 790 MacTtyAccessor primGetStatus
"/ 792 MacTtyAccessor setSem:forWrite:
"/ 793 MacTtyAccessor primAssertDTR:
"/ 794 MacTtyAccessor primGetSize
"/ 933 ByteArray copyBitsClippedStride:...
"/ 934 ByteArray tileBits32By32Stride:...
"/ 935 Screen dragShape:...
"/ 936 Screen resizeRectangle...
"/ 937 Screen displayShape:...
"/ 938 Window resizeFromUserWithMinimum:maximum:
"/ 940 Window primClose
"/ 942 Window getDimensions
"/ 943 Window moveTo:resize:
"/ 944 Window primMap
"/ 945 Window class primNewAt:extent:min:max:windowType:
"/ 946 Screen flush
"/ 947 Screen getScreenDimensions
"/ 948 Window unmap
"/ 950 Screen sync
"/ 951 Window setIconMask:
"/ 952 Window label:iconLabel:
"/ 953 Window raise
"/ 954 Window lower
"/ 955 Screen queryStackingOrder
"/ 956 TextMeasurer primScanCharactersFrom:...
"/ 957 GraphicsContext displayMappedString:from:to:at:withMap:
"/ 959 Window setBackgroundPixel:
"/ 960 Screen class primOpen:
"/ 965 UnmappableSurface contentsOfAreaOriginX:y:width:height:
"/ 966 Window contentsOfAreaOriginX:y:width:height:
"/ 967 Screen contentsOfAreaOriginX:y:width:height:
"/ 970 Mask class primExtent:depth:
"/ 971 Mask privateClose
"/ 976 GraphicsContext displayCharacterOfIndex:at:
"/ 978 DeviceFont class listFonts
"/ 979 DeviceFont primLoadFont
"/ 980 DeviceFont primUnLoadFont
"/ 985 GraphicsContext displayLineFrom:to:
"/ 986 GraphicsContext displayPolyline:at:
"/ 987 GraphicsContext displayPolygon:at:
"/ 988 GraphicsContext primDisplayRectangleOrigin:extent:
"/ 989 GraphicsContext primDisplayRectangularBorderOrigin:extent:
"/ 990 GraphicsContext primDisplayArcBBoxOrigin:extent:startAngle:sweepAngle:
"/ 991 GraphicsContext primDisplayWedgeBBoxOrigin:extent:startAngle:sweepAngle:
"/ 992 GraphicsContext displayMask:at:"
"/ 993 GraphicsContext displayUninterpretedImageBits:at:
"/ 994 GraphicsContext primCopyRectangularAreaExtent:from:sourceOffset:destinationOffset:
"/ 995 GraphicsContext primCopyMaskedArea:from:sourceOffset:destinationOffset:
"/ 996 Screen deviceColormap
"/ 998 GraphicsContext displayUninterpretedMonoImageBits:foreground:background:at:
"/ Squeak:
"/
"/ 1 +
"/ 2 -
"/ 3 <
"/ 4 >
"/ 5 <=
"/ 6 >=
"/ 7 =
"/ 8 ~=
"/ 9 *
"/ 10 /
"/ 11 mod:
"/ 12 div:
"/ 13 quo:
"/ 14 bitAnd:
"/ 15 bitOr:
"/ 16 bitXor:
"/ 17 bitShift:
"/ 18 @
"/ 19
"/ ...
"/ 39 fail - reserved/unimplemented
"/ 40 asFloat
"/ 41 Float +
"/ 42 Float -
"/ 43 Float <
"/ 44 Float >
"/ 45 Float <=
"/ 46 Float >=
"/ 47 Float =
"/ 48 Float ~=
"/ 49 Float *
"/ 50 Float /
"/ 51 Float truncated
"/ 52 Float fractionalPart
"/ 53 Float exponent
"/ 54 Float timeTwoPower
"/ 55 Float sqrt
"/ 56 Float sine
"/ 57 Float arcTan
"/ 58 Float logN
"/ 59 Float exp
"/ 60 at:
"/ 61 at:put:
"/ 62 size
"/ 63 stringAt:
"/ 64 stringAt:put:
"/ 65 next
"/ 66 nextPut:
"/ 67 atEnd
"/ 68 objectAt:
"/ 69 objectAt:put:
"/ 70 new
"/ 71 new:
"/ 72 becomeOneWay
"/ 73 instVarAt:
"/ 74 instVarAtPut:
"/ 75 asOop
"/ 76 storeStackP
"/ 77 someInstance
"/ 78 nextInstance
"/ 79 newMethod
"/ 80 blockCopy
"/ 81 value
"/ 82 valueWithArgs
"/ 83 perform
"/ 84 performWithArgs
"/ 85 signal
"/ 86 wait
"/ 87 resume
"/ 88 suspend
"/ 89 flushCache
"/ 90 mousePoint
"/ 91 fail/unimplemented/reserved
"/ 92 fail/unimplemented/reserved
"/ 93 inputSemaphore
"/ 94 fail/unimplemented/reserved
"/ 95 inputWord
"/ 96 copyBits
"/ 97 snapShot
"/ 98 fail/unimplemented/reserved
"/ 99 fail/unimplemented/reserved
"/ 100 fail/unimplemented/reserved
"/ 101 beCursor
"/ 102 beDisplay
"/ 103 scanCharacters
"/ 104 drawLoop
"/ 105 stringReplace
"/ 106 screenSize
"/ 107 mouseButtons
"/ 108 kbdNext
"/ 109 kbdPeek
"/ 110 equivalent
"/ 111 class
"/ 112 bytesLeft
"/ 113 quit
"/ 114 exitToDebugger
"/ 115 fail/unimplemented/reserved
"/ 116 flushCacheByMethod
"/ 117 externalCall
"/ 118 doPrimitiveWithArg
"/ 119 flushCacheSelective
"/ 120 fail/unimplemented/reserved
"/ 121 imageName
"/ 122 noop
"/ 123 fail/unimplemented/reserved
"/ 124 lowSpaceSemaphore
"/ 125 signalAtBytesLeft
"/ 126 deferDisplayUpdate
"/ 127 showDisplayRect
"/ 128 arrayBecome
"/ 129 specialObjectsOop
"/ 130 fullGC
"/ 131 incrementalGC
"/ 132 objectPointsTo
"/ 133 setInterruptKey
"/ 134 interruptSemaphore
"/ 135 millisecondClock
"/ 136 signalAtMilliseconds
"/ 137 secondsClock
"/ 138 someObject
"/ 139 nextObject
"/ 140 beep
"/ 141 clipboardText
"/ 142 vmPath
"/ 143 shortAt
"/ 144 shortAtPut
"/ 145 constantFill
"/ 146 readJoystick
"/ 147 warpBits
"/ 148 clone
"/ 149 getAttribute
"/ 150 fileAtEnd
"/ 151 fileClose
"/ 152 fileGetPosition
"/ 153 fileOpen
"/ 154 fileRead
"/ 155 fileSetPosition
"/ 156 fileDelete
"/ 157 fileSize
"/ 158 fileWrite
"/ 159 fileRename
"/ 160 directoryCreate
"/ 161 directoryDelimiter
"/ 162 directoryLookup
"/ 163 fail
"/ 164 fail
"/ 165 fail
"/ 166 fail
"/ 167 fail
"/ 168 fail
"/ 169 directorySetMacType
"/ 170 soundStart
"/ 171 soundStartWithSemaphore
"/ 172 soundStop
"/ 173 soundAvailableSpace
"/ 174 soundPlaySamples
"/ 175 soundPlaySilence
"/ 176 waveTableSoundmixSampleCountIntoStarrtingAtpan
"/ 177 fmSoundmixSampleCountintostartingAtpan
"/ 178 pluckedSoundmixSampleCountintostartingAtpan
"/ 179 sampledSoundmixSampleCountintostartingAtpan
"/ 180 fmSoundmixSampleCountintostartingAtleftVolrightVol
"/ 181 pluckedSoundmixSampleCountintostartingAtleftVolrightVol
"/ 182 sampledSoundmixSampleCountintostartingAtleftVolrightVol
"/ 183 reverbSoundapplyReverbTostartingAtcount
"/ 184 loopedSampledSoundmixSampleCountintostartingAtleftVolrightVol
"/ 185 fail
"/ 186 fail
"/ 187 fail
"/ 188 fail
"/ 189 soundInsertSamples
"/ 190 soundStartRecording
"/ 191 soundStopRecording
"/ 192 soundGetRecordingSampleRate
"/ 193 soundRecordSamples
"/ 194 soundSetRecordLevel
"/ 195 fail
"/ 196 fail
"/ 197 fail
"/ 198 fail
"/ 199 fail
"/ 200 initializeNetwork
"/ 201 resolverStartNameLookup
"/ 202 resolverNameLookupResult
"/ 203 resolverStartAddressLookup
"/ 204 resolverAddressLookupResult
"/ 205 resolverAbortLookup
"/ 206 resolverLocalAddress
"/ 207 resolverStatus
"/ 208 resolverError
"/ 209 socketCreate
"/ 210 socketDestroy
"/ 211 socketConnectionStatus
"/ 212 socketError
"/ 213 socketLocalAddress
"/ 214 socketLocalPort
"/ 215 socketRemoteAddress
"/ 216 socketRemotePort
"/ 217 socketConnectToPort
"/ 218 socketListenOnPort
"/ 219 socketCloseConnection
"/ 220 socketAbortConnection
"/ 221 socketReceiveDataBufCount
"/ 222 socketReceiveDataAvailable
"/ 223 socketSendDataBufCount
"/ 224 socketSendDone
"/ 225 fail
"/ 226 fail
"/ 227 fail
"/ 228 fail
"/ 229 fail
"/ 230 relinquishProcessor
"/ 231 forceDisplayUpdate
"/ 232 formPrint
"/ 233 setFullScreen
"/ 234 bitmapdecompressfromByteArrayat
"/ 235 stringcomparewithcollated
"/ 236 sampledSoundconvert8bitSignedFromto16Bit
"/ 237 bitmapcompresstoByteArray
"/ 238 serialPortOpen
"/ 239 serialPortClose
"/ 240 serialPortWrite
"/ 241 serialPortRead
"/ 242 fail
"/ 243 stringtranslatefromtotable
"/ 244 stringfindFirstInStringinSetstartingAt
"/ 245 stringindexOfAsciiinStringstartingAt
"/ 246 stringfindSubstringinstartingAtmatchTable
"/ 247 fail
"/ 248 fail
"/ 249 fail
"/ 250 clearProfile
"/ 251 dumpProfile
"/ 252 startProfiling
"/ 253 stopProfiling
"/ 254 vmParameter
"/ 255 instVarsPutFromStack
"/ 256 pushSelf
"/ 257 pushTrue
"/ 258 pushFalse
"/ 259 pushNil
"/ 260 pushMinusOne
"/ 261 pushZero
"/ 262 pushOne
"/ 263 pushTwo
"/ 264 loadInstVar
"/ .. loadInstVar
"/ 519 loadInstVar
"/ 520 fail
"/ 521 MIDIClosePort
"/ 522 MIDIGetClock
"/ 523 MIDIGetPortCount
"/ 524 MIDIGetPortDirectionality
"/ 525 MIDIGetPortName
"/ 526 MIDIOpenPort
"/ 527 MIDIParameterGetOrSet
"/ 528 MIDIRead
"/ 529 MIDIWrite
"/ 530 fail
"/ .. fail
"/ 539 fail
"/ 540 asyncFileClose
"/ 541 asyncFileOpen
"/ 542 asyncFileReadResult
"/ 543 asyncFileReadStart
"/ 544 asyncFileWriteResult
"/ 545 asyncFileWriteStart
"/ 546 fail
"/ ..
"/ 700 fail
cls notNil ifTrue:[
^ (cls compiledMethodAt:sel) code
].
^ nil
!
codeLineNumber:nr on:codeStream
"generate lineNumber information"
"/ caveat: (currently) there is no separate lineNumber or symbol table;
"/ the line numbers are coded right into the instruction stream.
"/ This might change in the future.
"/ (It is not a problem speed wise: the Jitter just skips them.)
(currentLineNumber = nr or:[nr <= 0]) ifTrue:[
^ self
].
"don't need line number information, if still on same line"
currentLineNumber := nr.
nr <= 255 ifTrue:[
codeStream
nextPut:#lineno;
nextPut:nr.
] ifFalse:[
nr <= 16rFFFF ifTrue:[
codeStream
nextPut:#lineno16;
nextPutInt16MSB:nr.
]
].
!
createMethod
|newMethod|
newMethod := self methodClass new:(litArray size).
litArray notNil ifTrue:[
"/ fixup CheapBlocks method-field in literal array,
litArray do:[:aLiteral |
(aLiteral isBlock and:[aLiteral isCheapBlock]) ifTrue:[
aLiteral setMethod:newMethod.
]
].
newMethod literals:litArray
].
newMethod numberOfVars:(self numberOfMethodVars + (maxNumTemp ? 0)).
newMethod numberOfArgs:(self numberOfMethodArgs).
newMethod stackSize:(self maxStackDepth).
primitiveResource notNil ifTrue:[
newMethod setResourceFlag
].
annotations notEmptyOrNil ifTrue:[
newMethod annotations: (self annotations copy).
(Smalltalk at: #NamespaceAwareLookup) notNil ifTrue:[
(annotations contains: [:annotation| (annotation key) == #namespace:])
ifTrue:[newMethod lookupObject:NamespaceAwareLookup instance]
]
].
^ newMethod
"Created: / 18-05-1996 / 16:33:17 / cg"
"Modified: / 24-06-1996 / 12:32:50 / stefan"
"Modified: / 10-07-2010 / 21:40:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 29-11-2011 / 11:22:15 / cg"
!
genByteCodeFrom:symbolicCodeArray
"convert symbolicCode into bytecodes"
|symIndex "{Class: SmallInteger }"
codeSize "{Class: SmallInteger }"
symCodeSize "{Class: SmallInteger }"
index nextSym addr
codeSymbol nargs needRetry
stackDepth relocInfo level nvars round|
symbolicCodeArray isNil ifTrue:[^ self].
round := 0.
needRetry := true.
symCodeSize := symbolicCodeArray size.
ShareCode ifTrue:[
codeBytes := self checkForCommonCode:symbolicCodeArray.
codeBytes notNil ifTrue:[
^ self
].
].
codeSize := symCodeSize.
[needRetry] whileTrue:[
stackDepth := 0.
maxStackDepth := 0.
codeBytes := ByteArray uninitializedNew:codeSize.
relocInfo := Array basicNew:(codeSize + 1).
symIndex := 1.
codeIndex := 1.
needRetry := false.
round := round + 1.
[symIndex <= symCodeSize] whileTrue:[
relocInfo at:symIndex put:codeIndex.
codeSymbol := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
stackDelta := 0.
extra := extraLiteral := extraOP := nil.
lineno := false.
self appendByteCodeFor:codeSymbol.
extraOP notNil ifTrue:[
self appendByte:extraOP.
symIndex := symIndex + 1.
].
extraLiteral notNil ifTrue:[
self addLiteral:extraLiteral
].
lineno ifTrue:[
"the instruction requires a line number byte"
self appendByte:((symbolicCodeArray at:symIndex) min:255).
symIndex := symIndex + 1.
codeSymbol == #lineno16 ifTrue:[
self appendByte:((symbolicCodeArray at:symIndex) min:255).
symIndex := symIndex + 1
]
].
extra notNil ifTrue:[
nextSym := symbolicCodeArray at:symIndex.
(extra == #number) ifTrue:[
index := nextSym.
symIndex := symIndex + 1.
self appendSignedByte:index
] ifFalse:[ (extra == #number16) ifTrue:[
index := nextSym.
symIndex := symIndex + 2.
self appendSignedWord:index
] ifFalse:[ (extra == #unsigned16) ifTrue:[
index := nextSym.
symIndex := symIndex + 2.
self appendWord:index
] ifFalse:[ (extra == #unsigned32) ifTrue:[
index := nextSym.
symIndex := symIndex + 4.
self appendLongWord:index
] ifFalse:[ (extra == #index) ifTrue:[
index := nextSym.
symIndex := symIndex + 1.
self appendByte:index
] ifFalse:[ (extra == #lit) ifTrue:[
index := self addLiteral:nextSym.
symIndex := symIndex + 1.
self appendByte:index
] ifFalse:[ (extra == #speciallit) ifTrue:[
index := self addLiteral:nextSym.
index > 255 ifTrue:[
self codeGeneratorError:'too many globals (' ,
(symbolicCodeArray at:symIndex) ,
' index=' , index printString ,
') in method - please simplify'.
^ #Error
].
symIndex := symIndex + 1.
self appendByte:index.
] ifFalse:[ (extra == #speciallitS) ifTrue:[
index := nextSym.
symIndex := symIndex + 1.
self appendByte:index.
] ifFalse:[ (extra == #speciallitL) ifTrue:[
index := nextSym.
symIndex := symIndex + 2.
self appendWord:index.
] ifFalse:[ (extra == #offset) ifTrue:[
relocInfo at:symIndex put:codeIndex.
self addReloc:symIndex.
symIndex := symIndex + 1.
self appendByte:0
] ifFalse:[ (extra == #indexLevel) ifTrue:[
index := nextSym.
symIndex := symIndex + 1.
self appendByte:index.
level := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:level
] ifFalse:[ (extra == #offsetNvarNarg) ifTrue:[
relocInfo at:symIndex put:codeIndex.
self addReloc:symIndex.
symIndex := symIndex + 1.
self appendEmptyByte.
nvars := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:nvars.
level := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:level
] ifFalse:[ (extra == #absoffset) ifTrue:[
relocInfo at:symIndex put:codeIndex.
self addReloc:symIndex.
addr := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendWord:addr.
] ifFalse:[ (extra == #absoffsetNvarNarg) ifTrue:[
relocInfo at:symIndex put:codeIndex.
self addReloc:symIndex.
addr := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendWord:addr.
nvars := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:nvars.
level := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:level
] ifFalse:[ (extra == #special) ifTrue:[
((codeSymbol == #send)
or:[codeSymbol == #sendSelf
or:[codeSymbol == #superSend]]) ifTrue:[
index := nextSym.
symIndex := symIndex + 1.
nargs := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:nargs.
self appendByte:index.
(codeSymbol == #superSend) ifTrue:[
index := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:index
].
stackDelta := nargs negated.
codeSymbol == #sendSelf ifTrue:[
stackDelta := stackDelta + 1
]
] ifFalse:[ (codeSymbol == #sendDrop) ifTrue:[
index := nextSym.
symIndex := symIndex + 1.
nargs := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:nargs.
self appendByte:index.
stackDelta := (nargs + 1) negated
]]
] ifFalse:[ (extra == #specialL) ifTrue:[
((codeSymbol == #sendL)
or:[codeSymbol == #sendDropL
or:[codeSymbol == #sendSelfL
or:[codeSymbol == #superSendL]]]) ifTrue:[
index := nextSym.
symIndex := symIndex + 2.
nargs := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:nargs.
self appendWord:index.
(codeSymbol == #superSendL) ifTrue:[
index := symbolicCodeArray at:symIndex.
symIndex := symIndex + 2.
self appendWord:index.
].
stackDelta := nargs negated.
codeSymbol == #sendSelfL ifTrue:[
stackDelta := stackDelta + 1
]
]
] ifFalse:[ (extra == #specialSend) ifTrue:[
index := nextSym.
symIndex := symIndex + 1.
self appendByte:index.
] ifFalse:[ (extra == #specialVL) ifTrue:[
((codeSymbol == #sendVL)
or:[codeSymbol == #superSendVL]) ifTrue:[
index := nextSym.
symIndex := symIndex + 4.
nargs := symbolicCodeArray at:symIndex.
symIndex := symIndex + 1.
self appendByte:nargs.
self appendLongWord:index.
(codeSymbol == #superSendVL) ifTrue:[
index := symbolicCodeArray at:symIndex.
symIndex := symIndex + 4.
self appendLongWord:index.
].
stackDelta := nargs negated.
]
] ifFalse:[
"/ self halt:'internal error'
]]]]]]]]]]]]]]]]]]
].
stackDepth := stackDepth + stackDelta.
(stackDepth > maxStackDepth) ifTrue:[
maxStackDepth := stackDepth
]
].
relocInfo at:symIndex put:codeIndex.
needRetry ifFalse:[
"
now relocate - returns true if ok, false if we have to do it again
(when short jumps have been changed to long jumps)
"
relocList notNil ifTrue:[
needRetry := (self relocateWith:symbolicCodeArray relocInfo:relocInfo) not.
"
if returned with false, a relative jump was made into
an absolute jump - need to start over with one more byte space
"
needRetry ifTrue:[
relocList := nil.
codeSize := codeSize + 1.
]
]
] ifTrue:[
'Compiler [info]: compiling again ...' infoPrintCR.
]
].
"code printNL."
^ errorFlag
"Modified: 3.9.1995 / 12:59:43 / claus"
"Modified: 10.1.1997 / 15:17:51 / cg"
!
genSpecialStatement:selector on:codeStream
"/ generate: thisContext selector (to force a context).
(StatementNode
expression:(UnaryNode receiver:(VariableNode type:#ThisContext context:contextToEvaluateIn)
selector:selector))
codeForSideEffectOn:codeStream inBlock:nil for:self.
!
genSymbolicCode
"traverse the parse-tree producing symbolicCode - return the codeArray"
|codeStream code thisStatement lastStatement|
litArray := nil.
codeStream := WriteStream on:(OrderedCollection new:100).
primitiveContextInfo notNil ifTrue:[
(primitiveContextInfo includes:('exception:' -> #unwind)) ifTrue:[
self genSpecialStatement:#markForUnwind on:codeStream
].
(primitiveContextInfo includes:('exception:' -> #handle)) ifTrue:[
self genSpecialStatement:#markForHandle on:codeStream
].
(primitiveContextInfo includes:('exception:' -> #raise)) ifTrue:[
self genSpecialStatement:#markForRaise on:codeStream
].
].
self startCodeGenerationHookOn:codeStream.
self generateVariables:methodVars on:codeStream.
(tree notNil and:[tree isMethodNode]) ifTrue:[
"kludge for VW compat."
tree codeForSideEffectOn:codeStream inBlock:nil for:self.
lastStatement := tree statements last.
] ifFalse:[
thisStatement := tree.
[thisStatement notNil] whileTrue:[
lastStatement := thisStatement.
thisStatement codeForSideEffectOn:codeStream inBlock:nil for:self.
thisStatement := thisStatement nextStatement
].
].
(lastStatement isNil or:[lastStatement isReturnNode not])
ifTrue:[
"not a return - add retSelf"
"
if the last statement was a send for side-effect,
replace the previous drop by a retSelf.
In this case we have to keep an extra retSelf bacause
it could be a jump target.
"
(lastStatement notNil
and:[(code := codeStream contents) notNil
and:[code size ~~ 0
and:[code last == #drop]]]) ifTrue:[
codeStream backStep.
codeStream nextPut:#retSelf
].
codeStream nextPut:#retSelf
].
^ codeStream contents
"Modified: / 15-08-1996 / 17:35:02 / stefan"
"Modified: / 06-08-2006 / 15:03:14 / cg"
"Modified: / 01-03-2019 / 14:48:06 / Claus Gittinger"
!
generateVariables:varCollection on:codeStream
varCollection isNil ifTrue:[^ self].
varCollection do:[:eachVar |
eachVar type notNil ifTrue:[
"/ generate code to set it up.
(AssignmentNode
variable:(self nodeForMethodVariable:eachVar name)
expression:(eachVar expressionForSetup))
codeForSideEffectOn:codeStream inBlock:nil for:self.
]
]
!
relocateWith:symbolicCodeArray relocInfo:relocInfo
"helper for genByteCodeFrom - relocate code using relocInfo.
if relocation fails badly (due to long relative jumps) patch
symbolicCode to use absolute jumps instead and return false
(genByteCodeFrom will then try again). Otherwise return true.
Also, on the fly, jumps to jumps and jumps to return are handled."
|delta "{Class: SmallInteger }"
codePos "{Class: SmallInteger }"
opCodePos "{Class: SmallInteger }"
codeOffset "{Class: SmallInteger }"
symOffset
opcode "{Class: SmallInteger }"
dstOpcode jumpTarget
jumpCode deleteSet|
deleteSet := OrderedCollection new.
relocList do:[:sIndex |
"have to relocate symCode at sIndex ..."
symOffset := symbolicCodeArray at:sIndex. "the target in the symbolic code"
codePos := relocInfo at:sIndex. "position of the offet in byte code"
codeOffset := relocInfo at:symOffset. "position of the target in byte code"
delta := codeOffset - codePos - 1.
opCodePos := codePos - 1.
opcode := codeBytes at:opCodePos.
(opcode between:190 and:199) ifTrue:[
"an absolute jump/makeBlock"
codeBytes at:codePos put:(codeOffset bitAnd:16rFF).
codeBytes at:(codePos + 1) put:(codeOffset bitShift:-8)
] ifFalse:[
"get jump-code from long and vlong codes"
(opcode between:50 and:59) ifFalse:[
(opcode between:60 and:69) ifTrue:[
opcode := opcode - 10
] ifFalse:[
(opcode between:70 and:79) ifTrue:[
opcode := opcode - 20
] ifFalse:[
self codeGeneratorError:'invalid code to relocate'
]
].
].
"optimize jump to return and jump to jump"
(opcode == 54) ifTrue:[
"a jump"
dstOpcode := symbolicCodeArray at:symOffset.
(#(retSelf retTop retNil retTrue retFalse ret0 "blockRetTop") includes:dstOpcode) ifTrue:[
"a jump to a return - put in the return instead jump"
symbolicCodeArray at:(sIndex - 1) put:dstOpcode.
symbolicCodeArray at:sIndex put:dstOpcode.
codeBytes at:opCodePos put:(self byteCodeFor:dstOpcode).
delta := 0.
deleteSet add:sIndex.
"
'jump to return at: ' print. (sIndex - 1) printNL.
"
] ifFalse:[
(dstOpcode == #jump) ifTrue:[
"jump to jump to be done soon"
jumpTarget := symbolicCodeArray at:(symOffset + 1).
"
'jump to jump at: ' print. (sIndex - 1) print.
' newTarget:' print. jumpTarget printNL.
"
symbolicCodeArray at:sIndex put:jumpTarget.
symOffset := jumpTarget.
codeOffset := relocInfo at:symOffset.
delta := codeOffset - codePos - 1.
"continue with new delta"
]
]
].
(#[50 51 52 53 56 57 58 59] includes:opcode) ifTrue:[
"a conditional jump"
dstOpcode := symbolicCodeArray at:symOffset.
(dstOpcode == #jump) ifTrue:[
"conditional jump to unconditional jump"
jumpTarget := symbolicCodeArray at:(symOffset + 1).
"
'cond jump to jump at: ' print. (sIndex - 1) print.
' newTarget:' print. jumpTarget printNL.
"
symbolicCodeArray at:sIndex put:jumpTarget.
symOffset := jumpTarget.
codeOffset := relocInfo at:symOffset.
delta := codeOffset - codePos - 1.
"continue with new delta"
].
].
(delta >= 0) ifTrue:[
(delta > 127) ifTrue:[
(opcode between:50 and:59) ifFalse:[
self codeGeneratorError:'invalid code to relocate'
] ifTrue:[
(delta > 255) ifTrue:[
"change jmp into vljmp ..."
codeBytes at:opCodePos put:(opcode + 20).
delta := delta - 256
] ifFalse:[
"change jmp into ljmp ..."
codeBytes at:opCodePos put:(opcode + 10).
delta := delta - 128
].
(delta > 127) ifTrue:[
"change symbolic into a jump absolute and fail"
jumpCode := symbolicCodeArray at:(sIndex - 1).
symbolicCodeArray at:(sIndex - 1) put:(self absJumpFromJump:jumpCode).
symbolicCodeArray at:sIndex put:symOffset.
"
'change short into abs jump' printNL.
"
deleteSet do:[:d | relocList remove:d].
^ false
]
].
].
codeBytes at:codePos put:delta
] ifFalse:[
(delta < -128) ifTrue:[
(opcode between:50 and:59) ifFalse:[
self codeGeneratorError:'invalid code to relocate'
] ifTrue:[
(delta < -256) ifTrue:[
"change jmp into vljmp ..."
codeBytes at:opCodePos put:(opcode + 20).
delta := delta + 256
] ifFalse:[
"change jmp into ljmp ..."
codeBytes at:opCodePos put:(opcode + 10).
delta := delta + 128
].
(delta < -128) ifTrue:[
"change symbolic into a jump absolute and fail"
jumpCode := symbolicCodeArray at:(sIndex - 1).
symbolicCodeArray at:(sIndex - 1) put:(self absJumpFromJump:jumpCode).
symbolicCodeArray at:sIndex put:symOffset.
"
'change short into abs jump' printNL.
"
deleteSet do:[:d | relocList remove:d].
^ false
]
]
].
codeBytes at:codePos put:(256 + delta)
]
]
].
self errorFlag ifTrue:[
self codeGeneratorError:'relocation range error'
].
^ true
! !
!ByteCodeCompiler methodsFor:'code generation helpers'!
absJumpFromJump:code
"given a jump-symbolic code, return corresponding absolute jump"
JumpToAbsJump isNil ifTrue:[
JumpToAbsJump := IdentityDictionary new.
JumpToAbsJump at:#jump put:#jumpabs.
JumpToAbsJump at:#trueJump put:#trueJumpabs.
JumpToAbsJump at:#falseJump put:#falseJumpabs.
JumpToAbsJump at:#nilJump put:#nilJumpabs.
JumpToAbsJump at:#notNilJump put:#notNilJumpabs.
JumpToAbsJump at:#eqJump put:#eqJumpabs.
JumpToAbsJump at:#notEqJump put:#notEqJumpabs.
JumpToAbsJump at:#zeroJump put:#zeroJumpabs.
JumpToAbsJump at:#notZeroJump put:#notZeroJumpabs.
JumpToAbsJump at:#makeBlock put:#makeBlockabs.
].
^ JumpToAbsJump at:code
!
addLiteral:anObject
"add a literal to the literalArray - watch for and eliminate
duplicates. return the index of the literal in the Array"
|index oldLit class sharable sharableValue|
litArray isNil ifTrue:[
litArray := OrderedCollection with:anObject.
^ 1
].
sharable := sharableValue := false.
class := anObject class.
class == Symbol
ifTrue:[ sharable := true ]
ifFalse:[
anObject isImmutable ifTrue:[
sharable := true
] ifFalse:[
((class == String) or:[class == Array or:[class == ByteArray]]) ifTrue:[
anObject isEmpty ifTrue:[
sharable := true
]
] ifFalse:[
((class == Float) or:[class == Fraction or:[class == LargeInteger]]) ifTrue:[
sharableValue := true
]
]
].
].
(sharable not and:[sharableValue not]) ifTrue:[
litArray add:anObject.
index := litArray size.
^ index.
].
"/ searching a dictionary is *much* faster; the code below starts to
"/ keep track of literals whenever we have collected more than a threshold
allLiterals notNil ifTrue:[
sharable ifTrue:[
index := allLiterals at:anObject ifAbsent:nil.
index isNil ifTrue:[
litArray add:anObject.
index := litArray size.
allLiterals at:anObject put:index.
^ index.
].
(litArray at:index) class ~~ anObject class ifTrue:[
index := nil.
].
].
].
index isNil ifTrue:[
index := litArray identityIndexOf:anObject.
].
(index == 0) ifTrue:[
"
reuse constants if same value and same class
"
((class == Float)
or:[class == Fraction
or:[class == LargeInteger
"or:[class == String] --only if literalString option has been added---" ]]) ifTrue:[
index := litArray indexOf:anObject.
index ~~ 0 ifTrue:[
oldLit := litArray at:index.
oldLit class == class ifFalse:[
index := 0.
] ifTrue:[
"/ don't mess up negative with positive zeros
anObject = 0.0 ifTrue:[
anObject isNegativeZero ~~ oldLit isNegativeZero ifTrue:[
index := 0
]
]
].
].
].
"
reuse empty collection literals
"
((class == String) or:[class == Array or:[class == ByteArray]]) ifTrue:[
anObject size == 0 ifTrue:[
index := litArray indexOf:anObject.
index ~~ 0 ifTrue:[
oldLit := litArray at:index.
oldLit class == class ifFalse:[
index := 0.
]
]
]
].
(index == 0) ifTrue:[
litArray add:anObject.
index := litArray size.
index > 30 ifTrue:[
allLiterals isNil ifTrue:[
allLiterals := Dictionary new.
litArray keysAndValuesDo:[:idx :lit | allLiterals at:lit put:idx].
].
allLiterals at:anObject put:index.
].
].
].
^ index
"Modified: / 12.11.1997 / 18:49:43 / cg"
!
addReloc:symIndex
"remember to relocate offset at symIndex later ..."
relocList isNil ifTrue:[
relocList := OrderedCollection new.
].
relocList add:symIndex
!
addTempVar
"add a temporary variable; return its position (1-based).
Used when a block with args/locals is inlined."
numTemp isNil ifTrue:[numTemp := maxNumTemp := 0].
numTemp := numTemp + 1.
maxNumTemp := maxNumTemp max:numTemp.
^ numTemp + methodVars size
"Modified: 26.6.1997 / 10:22:23 / cg"
!
appendByte:aByte
"append a byte to the code-Array, checking for byte-range (debug-only)"
|idx "{Class: SmallInteger }"|
idx := codeIndex.
(aByte between:0 and:255) ifTrue:[
codeBytes at:idx put:aByte.
codeIndex := idx + 1
] ifFalse:[
self codeGeneratorError:'byte range error'.
]
!
appendByteCodeFor:codeSymbol
"append the byteCode for an instructionSymbol to the code-Array"
|idx "{Class: SmallInteger }"|
idx := codeIndex.
codeBytes at:idx put:(self byteCodeFor:codeSymbol).
codeIndex := idx + 1
!
appendEmptyByte
"append an empty byte to the code-Array"
|idx "{Class: SmallInteger }"|
idx := codeIndex.
codeBytes at:idx put:0.
codeIndex := idx + 1
!
appendEmptyLong
"append an empty long (4 bytes) to the code-Array"
|idx "{Class: SmallInteger }"|
idx := codeIndex.
codeBytes at:idx put:0.
codeBytes at:idx+1 put:0.
codeBytes at:idx+2 put:0.
codeBytes at:idx+3 put:0.
codeIndex := idx + 4
!
appendEmptyShort
"append an empty short (2 bytes) to the code-Array"
|idx "{Class: SmallInteger }"|
idx := codeIndex.
codeBytes at:idx put:0.
codeBytes at:idx+1 put:0.
codeIndex := idx + 2
!
appendLongWord:aWord
"append an unsigned long word (low-high) to the code-Array,
checking for long word-range (debug-only)"
|idx "{Class: SmallInteger }"|
idx := codeIndex.
(aWord between:0 and:16rFFFFFFFF) ifTrue:[
codeBytes at:idx put:(aWord bitAnd:16rFF).
idx := idx + 1.
codeBytes at:idx put:((aWord bitShift:-8) bitAnd:16rFF).
idx := idx + 1.
codeBytes at:idx put:((aWord bitShift:-16) bitAnd:16rFF).
idx := idx + 1.
codeBytes at:idx put:((aWord bitShift:-24) bitAnd:16rFF).
codeIndex := idx + 1
] ifFalse:[
self codeGeneratorError:'long word range error'.
]
!
appendSignedByte:aByte
"append a signedbyte (as in jump-offsets) to the code-Array,
check range and report an error if invalid"
|b "{Class: SmallInteger }"
idx "{Class: SmallInteger }"|
idx := codeIndex.
b := aByte.
(b >= 0) ifTrue:[
(b > 127) ifTrue:[
self codeGeneratorError:'jump-range error'.
].
codeBytes at:idx put:b
] ifFalse:[
(b < -128) ifTrue:[
self codeGeneratorError:'jump-range error'.
].
b := 256 + b
].
codeBytes at:idx put:b.
codeIndex := idx + 1
!
appendSignedWord:aWord
"append a signed word to the code-Array,
check range and report an error if invalid"
|w "{Class: SmallInteger }"|
w := aWord.
(w >= 0) ifTrue:[
(w > 16r7FFF) ifTrue:[
self codeGeneratorError:'word-range error'.
].
] ifFalse:[
(w < 16r-8000) ifTrue:[
self codeGeneratorError:'word-range error'.
].
w := (16r10000 + w).
].
self appendWord:w
!
appendWord:aWord
"append an unsigned word (low-high) to the code-Array,
checking for word-range (debug-only)"
|idx "{Class: SmallInteger }"|
idx := codeIndex.
(aWord between:0 and:16rFFFF) ifTrue:[
codeBytes at:idx put:(aWord bitAnd:16rFF).
idx := idx + 1.
codeBytes at:idx put:(aWord bitShift:-8).
codeIndex := idx + 1
] ifFalse:[
self codeGeneratorError:'word range error'.
]
!
nameSpaceSelectorFor:aSymbol
"Caring for the current namespace, return the real selector used for a send."
|ns usedSym|
usedSym := aSymbol.
Smalltalk hasSelectorNameSpaces ifTrue:[
ns := self currentNameSpace.
(ns notNil and:[ns ~~ Smalltalk]) ifTrue:[
usedSym := (':',ns name,'::',aSymbol) asSymbol.
Logger info:('compile ',aSymbol,' as ',usedSym).
].
].
^ usedSym.
"Created: / 05-03-2007 / 13:28:59 / cg"
"Modified: / 29-08-2018 / 12:52:48 / Claus Gittinger"
!
removeTempVar
"remove a temporary variable"
numTemp := numTemp - 1
"Created: 25.6.1997 / 14:03:00 / cg"
"Modified: 25.6.1997 / 15:06:10 / cg"
! !
!ByteCodeCompiler methodsFor:'code generation hooks'!
startCodeGenerationHookOn:codeStream
"invoked before code is generated;
gives subclasses a chance to prepare and to inject code to be
executed on entry (instrumentation)"
"intentionally left blank - hook for subclasses"
"Modified (comment): / 30-09-2011 / 12:16:40 / cg"
! !
!ByteCodeCompiler methodsFor:'compilation'!
compile:aString forClass:aClass inCategory:cat
"compile a source-string for a method in classToCompileFor.
The method will get cat as category.
Returns the new method, #Error or nil."
^ self
compile:aString
forClass:aClass
inCategory:cat
notifying:nil
install:true
skipIfSame:false
silent:false
foldConstants:true
"Created: / 30-09-2011 / 12:44:50 / cg"
!
compile:aStringArg forClass:aClassArg inCategory:cat notifying:aRequestor
install:install skipIfSame:skipIfSame silent:silent foldConstants:fold
aRequestor notNil ifTrue:[
^ self
compile:aStringArg
forClass:aClassArg
inCategory:cat
notifying:aRequestor
install:install
skipIfSame:skipIfSame
silent:silent
foldConstants:fold
ifFail:nil
].
^ self
compile:aStringArg
forClass:aClassArg
inCategory:cat
notifying:aRequestor
install:install
skipIfSame:skipIfSame
silent:silent
foldConstants:fold
ifFail:[:exOrNil |
exOrNil notNil ifTrue:[
ParseError new
errorMessage:(exOrNil errorMessage) startPosition:(exOrNil startPosition) endPosition:(exOrNil endPosition);
parameter:exOrNil parameter;
lineNumber:exOrNil lineNumber;
raiseRequest.
] ifFalse:[
ParseError raiseRequestErrorString:'compilation failed'. #Error
].
(install and:[selector notNil]) ifTrue:[
|newMethod|
"/ if proceeded, install a trap method
newMethod := (Method trapMethodForNumArgs:selector numArgs) copy.
newMethod mclass:nil; setPackage:nil.
newMethod makeInvalid.
newMethod source:aStringArg.
aClassArg basicAddSelector:selector withMethod:newMethod
].
]
"Modified: / 18-01-2011 / 11:35:21 / cg"
!
compile:sourceCodeStringArg forClass:aClassArg inCategory:cat notifying:aRequestor
install:install skipIfSame:skipIfSame silent:silent foldConstants:fold
ifFail:failBlock
"the basic workhorse method for compiling:
compile a source-string for a method in classToCompileFor.
errors are forwarded to requestor
(report on Transcript and return the value of failBlock, if requestor is nil).
The new method will get cat as category.
If install is true, the method will go into the classes method-table,
otherwise the method is simply returned (for anonymous methods).
If skipIsSame is true, and the source is the same as an existing
methods source, this is a noop (for fast fileIn).
The argument, silent controls if errors are to be reported.
Returns the method, #Error or nil."
|newMethod tree symbolicCodeArray oldMethod silencio newSource primNr keptOldCode answer
aClass sourceCodeString hasErrorInMethodHeader oldCategory newCategory oldPackage
newPackage installSelector ns dialogText failureReason annotationCategory|
aClass := aClassArg.
sourceCodeString := sourceCodeStringArg.
sourceCodeString isNil ifTrue:[^ nil].
silencio := silent
or:[Smalltalk silentLoading
or:[ListCompiledMethods not]].
"/ when a correction has been made, this signal is raised to try again
self class restartCompilationSignal handle:[:ex |
"/ class could have changed ...
aClass := self classToCompileFor.
sourceCodeString := self correctedSource ? sourceCodeStringArg.
methodArgs := methodArgNames := methodVars := methodVarNames := nil.
usedInstVars := usedClassVars := usedVars := nil.
modifiedInstVars := modifiedClassVars := modifiedGlobals := nil.
currentBlock := nil.
ex restart
] do:[
ParseError handle:[:ex |
failBlock isNil ifTrue:[
ex reject
].
self showErrorMessageForClass:aClass.
^ failBlock valueWithOptionalArgument:ex.
] do:[
"create a compiler, let it parse and create the parsetree"
self source:sourceCodeString.
"/ not needed - done by source:-setter
"/ sourceCodeString isString ifTrue:[
"/ self source:(ReadStream on:sourceCodeString string).
"/ ] ifFalse:[
"/ self source:sourceCodeString readStream
"/ ].
self nextToken.
self setClassToCompileFor:aClass.
self parseForCode.
fold ifFalse:[self foldConstants:nil].
self notifying:aRequestor.
silent ifTrue:[
"/ self ignoreErrors:true.
self ignoreWarnings:true.
self warnUndeclared:false.
].
hasErrorInMethodHeader := (self parseMethodSpec == #Error).
hasErrorInMethodHeader ifTrue:[
self parseError:'syntax error in method specification'.
tree := #Error.
] ifFalse:[
tree := self parseMethodBody.
tree == #Error ifFalse:[
self checkForEndOfInput.
self tree:tree.
].
].
].
].
hasErrorInMethodHeader ifTrue:[
self showErrorMessageForClass:aClass.
^ failBlock value.
].
(aClass notNil and:[selector notNil]) ifTrue:[
oldMethod := aClass compiledMethodAt:selector.
oldMethod notNil ifTrue:[
oldCategory := oldMethod category.
oldPackage := oldMethod package.
].
].
(aClass notNil and:[aClass owningClass notNil
and:[parserFlags allowExtensionsToPrivateClasses not]]) ifTrue:[
"inherit private classe's package from owning class"
newPackage := aClass owningClass package
] ifFalse:[
(aRequestor respondsTo:#packageToInstall) ifTrue:[
"if there is an requestor who knows about the package, use it"
newPackage := aRequestor packageToInstall
] ifFalse:[
"if noone answers our package query, do not use the default
but use an existing method's package instead"
(oldPackage isNil or:[Class packageQuerySignal isHandled]) ifTrue:[
newPackage := Class packageQuerySignal query.
] ifFalse:[
newPackage := oldPackage.
].
].
].
newCategory := cat.
newCategory isNil ifTrue:[
newCategory := oldCategory ? (self class asYetUncategorizedMethodCategory).
].
"check if same source"
(skipIfSame
and:[oldMethod notNil
and:[ (SourceCodeManagerError
handle:[:ex | nil]
do:[oldMethod source]
) = sourceCodeString
]]) ifTrue:[
oldMethod isInvalid ifFalse:[
silencio ifFalse:[
Transcript showCR:(' unchanged: ',aClass name,' ',selector)
].
"
same. however, category may be different
"
(newCategory ~= oldCategory) ifTrue:[
oldMethod category:newCategory.
"/ aClass updateRevisionString.
silencio ifFalse:[
Transcript showCR:(' (category change only)')
].
].
"
and package may be too.
"
(newPackage notNil and:[newPackage ~~ oldPackage]) ifTrue:[
oldMethod package:newPackage.
silencio ifFalse:[
Transcript showCR:(' (package-id change only)')
].
].
^ oldMethod
]
].
(self errorFlag or:[tree == #Error]) ifTrue:[
"error in method body"
self showErrorMessageForClass:aClass.
^ failBlock value
].
"if no error and also no selector ..."
selector isNil ifTrue:[
"... it was just a comment or other empty stuff"
^ nil
].
"
freak-out support for inline C-code...
"
NewPrimitives ifFalse:[
((self hasNonOptionalPrimitiveCode
or:[(self hasPrimitiveCode and:[self class canCreateMachineCode])
or:[ParserFlags stcCompilation == #always and:[selector ~~ #doIt]]])
and:[(ParserFlags stcCompilation ~~ #never)]) ifTrue:[
ParseError handle:[:ex |
self parseError:(ex description) line:(ex lineNumber ? 1).
newMethod := #Error.
] do:[
newMethod :=
(STCCompilerInterface new
originator:self;
parserFlags:parserFlags)
compileToMachineCode:sourceCodeString
forClass:aClass
selector:selector
inCategory:cat
notifying:aRequestor
install:install
skipIfSame:skipIfSame
silent:silent.
].
newMethod == #Error ifTrue:[
self showErrorMessageForClass:aClass.
"/^ failBlock value
].
(newMethod == #CannotLoad or:[newMethod == #Error]) ifTrue:[
failureReason := newMethod.
newMethod := self trappingStubMethodFor:sourceCodeString inCategory:newCategory.
newMethod setPackage:newPackage.
keptOldCode := false.
install ifTrue:[
"/
"/ be very careful with existing methods
"/ (otherwise, you could easily make your system unusable in systems which cannot load)
"/
(oldMethod notNil and:[oldMethod code ~= newMethod code]) ifTrue:[
failureReason == #Error ifTrue:[
dialogText :=
'STC-compilation of ''%1>>%2''
to machine code failed .
Shall I use the old methods functionality
or instead create a dummy trap method for it ?
Hint:
if that method is needed by the system, you better leave the
original functionality in the system.
Close this warnBox to abort the compilation.
'
] ifFalse:[
dialogText :=
'installation of binary code for ''%1>>%2''
is not possible or disabled.
Shall I use the old method''s functionality
or instead create a dummy trap method for it ?
Hint:
if that method is needed by the system, you better leave the
original functionality in the system.
Close this warnBox to abort the compilation.
'
].
answer := Dialog
confirmWithCancel:(dialogText bindWith:aClass name allBold with:selector allBold)
labels:#('Cancel' 'Keep Old' 'Trap Code')
default:2.
answer isNil ifTrue:[
^ failBlock value
].
answer == false ifTrue:[
newMethod code:(oldMethod code).
keptOldCode := true.
].
].
aClass addSelector:selector withMethod:newMethod
].
(install or:[failureReason ~~ #CannotLoad]) ifTrue:[
"when compiling with STC andn install is false, #CannotLoad is always returned"
self showErrorNotification:(keptOldCode
ifTrue:['not really compiled - method still shows previous behavior']
ifFalse:['not compiled to machine code - created a stub instead.'])
].
].
^ newMethod
].
self hasNonOptionalPrimitiveCode ifTrue:[
"/
"/ generate a trapping method, if primitive code is present
"/
newMethod := self trappingStubMethodFor:sourceCodeString inCategory:newCategory.
install ifTrue:[
aClass addSelector:selector withMethod:newMethod.
].
self showErrorNotification:'not compiled to machine code - installed a stub instead.'.
^ newMethod
].
].
primNr := self primitiveNumber.
(NewPrimitives or:[primNr isNil]) ifTrue:[
"
produce symbolic code first
"
symbolicCodeArray := self genSymbolicCode.
(symbolicCodeArray == #Error) ifTrue:[
self showErrorNotification:'translation error'.
^ failBlock value
].
"
take this, producing bytecode
(machine code will be made by the VM when first called)
"
((self genByteCodeFrom:symbolicCodeArray) == #Error) ifTrue:[
self showErrorNotification:'relocation error - code must be simplified'.
^ failBlock value
].
].
"
finally create the new method-object
"
newMethod := self createMethod.
NewPrimitives ifTrue:[
newMethod byteCode:(self code).
primNr isNil ifTrue:[
self hasNonOptionalPrimitiveCode ifTrue:[
primNr := 0.
]
].
primNr notNil ifTrue:[
newMethod setPrimitiveNumber:primNr
]
] ifFalse:[
primNr notNil ifTrue:[
newMethod code:(self checkForPrimitiveCode:primNr).
] ifFalse:[
newMethod byteCode:(self code).
].
].
"
if there where any corrections, install the updated source
"
(newSource := self correctedSource) isNil ifTrue:[
newSource := sourceCodeString string.
].
(newSource includes:Character return) ifTrue:[
"/ see if it contains crlf's or only cr's
newSource := self class stringWithSimpleCRs:newSource
].
newMethod source:newSource string.
(newMethod hasAnnotation: #'category:') ifTrue:[
annotationCategory := (newMethod annotationAt:#'category:') argumentAt:1.
annotationCategory isString ifTrue:[
newCategory := annotationCategory
].
].
newMethod setCategory:newCategory.
newMethod setPackage:newPackage.
(self contextMustBeReturnable) ifTrue:[
newMethod contextMustBeReturnable:true
].
install ifTrue:[
installSelector := selector.
"/ when adding an extension, care for the current namespace
ns := self currentNameSpace.
(ns notNil and:[ns ~~ Smalltalk]) ifTrue:[
ns ~~ aClass nameSpace ifTrue:[
installSelector := self nameSpaceSelectorFor:(selector asSymbol).
]
].
aClass addSelector:installSelector withMethod:newMethod
].
silencio ifFalse:[
Transcript showCR:(' compiled: ', aClass name,' ', selector)
].
^ newMethod
"Created: / 29-10-1995 / 19:59:36 / cg"
"Modified: / 19-03-1999 / 08:31:09 / stefan"
"Modified: / 05-07-2011 / 22:50:36 / cg"
"Modified (comment): / 10-02-2019 / 15:50:19 / Claus Gittinger"
!
compile:methodText forClass:aBehavior install:doInstall
"compile a source-string for a method in classToCompileFor.
The install-argument controls if the method is to be installed into the
classes method-dictionary, or just to be compiled and a method object to be returned.
Returns the new method, #Error or nil."
^ self
compile:methodText
forClass:aBehavior
inCategory:(self class defaultMethodCategory)
notifying:nil
install:doInstall
skipIfSame:false
silent:false
foldConstants:true
ifFail:[ #Error ]
"Created: / 17-07-2006 / 18:44:53 / cg"
!
compileTree:aTree forClass:aClass
"given an already parsed AST, generate code and return a method"
|newMethod|
self tree:aTree.
newMethod := self createMethod.
newMethod byteCode:(self code).
(self contextMustBeReturnable) ifTrue:[
newMethod contextMustBeReturnable:true
].
^ newMethod
"Modified: / 19-03-1999 / 08:31:09 / stefan"
"Created: / 06-08-2006 / 03:25:39 / cg"
!
compileTree:aMethodNode forClass:aClass ifFail:failBlock
"given an already parsed AST, generate code and return a method"
|newMethod symbolicCodeArray|
self tree:aMethodNode.
selector := aMethodNode selector.
methodArgs := aMethodNode arguments ? #().
methodArgNames := methodArgs collect:[:eachVar | eachVar name].
methodVars := aMethodNode locals ? #().
methodVarNames := methodVars collect:[:eachVar | eachVar name].
"
produce symbolic code first
"
symbolicCodeArray := self genSymbolicCode.
(symbolicCodeArray == #Error) ifTrue:[ "/ no longer happens
self showErrorNotification:'translation error'.
^ failBlock value
].
"
take this, producing bytecode
(someone willin' to make machine code :-)
"
((self genByteCodeFrom:symbolicCodeArray) == #Error) ifTrue:[
self showErrorNotification:'relocation error - code must be simplified'.
^ failBlock value
].
newMethod := self createMethod.
newMethod byteCode:(self code).
(self contextMustBeReturnable) ifTrue:[
newMethod contextMustBeReturnable:true
].
^ newMethod
"Modified: / 19-03-1999 / 08:31:09 / stefan"
"Created: / 06-08-2006 / 03:26:27 / cg"
"Modified: / 06-08-2006 / 15:14:26 / cg"
!
showErrorNotification:message
|messageText|
messageText := message.
selector notNil ifTrue:[
messageText := selector ,' ', messageText.
].
self class parseWarningSignal isHandled ifTrue:[
self class parseWarningSignal new
errorMessage:messageText;
parameter:self;
raiseRequest.
] ifFalse:[
Transcript show:'***'.
Transcript showCR:messageText.
].
! !
!ByteCodeCompiler methodsFor:'error handling'!
codeGeneratorError:aMessage
CompilationError raiseRequestWith:self errorString:aMessage.
errorFlag := true.
^ #Error
! !
!ByteCodeCompiler methodsFor:'machine code generation'!
trappingStubMethodFor:aString inCategory:cat
"return a stub method which traps and reports an error whenever
called."
|newMethod|
newMethod := self methodClass new:(litArray size).
litArray notNil ifTrue:[
newMethod literals:litArray
].
newMethod makeUncompiled.
newMethod numberOfVars:(self numberOfMethodVars).
newMethod numberOfArgs:(self numberOfMethodArgs).
newMethod source:aString string.
newMethod setCategory:cat.
^ newMethod
"Modified: / 1.8.1997 / 00:27:32 / cg"
"Modified: / 18.3.1999 / 18:12:33 / stefan"
! !
!ByteCodeCompiler methodsFor:'queries'!
hasLineNumber:sel
"return true, if special send code needs lineNr"
(sel == #==) ifTrue:[^ false].
(sel == #~~) ifTrue:[^ false].
(sel == #class) ifTrue:[^ false].
(sel == #isNil) ifTrue:[^ false].
(sel == #notNil) ifTrue:[^ false].
^ true
!
isBuiltInSelector:sel forReceiver:receiver
"return true, if selector sel is built-in.
(i.e. there is a single bytecode for it)"
(sel == #value) ifTrue:[^ true].
(sel == #value:) ifTrue:[^ true].
(sel == #class) ifTrue:[^ true].
(sel == #size) ifTrue:[^ true].
(sel == #isNil) ifTrue:[^ true].
(sel == #notNil) ifTrue:[^ true].
(sel == #not) ifTrue:[^ true].
(sel == #new) ifTrue:[^ true].
(sel == #basicNew) ifTrue:[
"/ this one is critical - some redefine it
receiver isGlobal ifTrue:[
(#('String' 'ByteArray' 'Array'
'Point' 'Rectangle' 'Object')
includes:receiver name) ifTrue:[^ true].
].
].
(sel == #basicNew:) ifTrue:[
"/ this one is critical - some redefine it
receiver isGlobal ifTrue:[
(#('String' 'ByteArray' 'Array'
'Point' 'Rectangle' 'Object')
includes:receiver name) ifTrue:[^ true].
].
].
sel == #== ifTrue:[^ true].
sel == #~~ ifTrue:[^ true].
sel == #= ifTrue:[^ true].
sel == #~= ifTrue:[^ true].
sel == #+ ifTrue:[^ true].
sel == #- ifTrue:[^ true].
sel == #< ifTrue:[^ true].
sel == #<= ifTrue:[^ true].
sel == #> ifTrue:[^ true].
sel == #>= ifTrue:[^ true].
sel == #* ifTrue:[^ true].
sel == #& ifTrue:[^ true].
sel == #| ifTrue:[^ true].
(sel == #at:) ifTrue:[^ true].
(sel == #at:put:) ifTrue:[^ true].
(sel == #bitAnd:) ifTrue:[^ true].
(sel == #bitOr:) ifTrue:[^ true].
(sel == #new:) ifTrue:[^ true].
^ false
"Created: 17.4.1996 / 22:32:16 / cg"
"Modified: 4.6.1997 / 12:23:30 / cg"
!
isCompiling
"return true if compiling code as opposed to evaluating"
^ true
!
numberOfTempVars
"return the number of additional temporary variables which
were created from inlined blocks (valid after parsing)"
^ maxNumTemp ? 0
"Created: 25.6.1997 / 13:54:29 / cg"
"Modified: 25.6.1997 / 15:21:34 / cg"
!
specialGlobalCodeFor:aSymbol
"codeExtension for globals,
which can be accessed by specialGlobal opCode"
|idx|
idx := self specialGlobals identityIndexOf:aSymbol ifAbsent:nil.
idx isNil ifTrue:[^ idx].
^ idx - 1.
"Modified: 4.6.1997 / 12:31:22 / cg"
!
specialGlobals
"list of globals which can be accessed by specialGlobal opCode;
adding any here requires a new VM (i.e. you cannot change it)"
^ #(
#Array "/ 0
#String "/ 1
#FloatArray "/ 2
#DoubleArray "/ 3
#Point "/ 4
#Symbol "/ 5
#Smalltalk "/ 6
#Processor "/ 7
#SmallInteger "/ 8
#Character "/ 9
#Float "/ 10
#Process "/ 11
#Set "/ 12
#IdentitySet "/ 13
#Dictionary "/ 14
#IdentityDictionary "/ 15
#Semaphore "/ 16
#OrderedCollection "/ 17
)
"Created: 4.6.1997 / 12:17:47 / cg"
"Modified: 4.6.1997 / 12:31:35 / cg"
!
specialSendCodeFor:sel
"return the codeExtension for sends,
which can be performed by specialSend opCode"
|idx|
idx := self specialSends identityIndexOf:sel ifAbsent:nil.
idx isNil ifTrue:[^ idx].
^ idx - 1.
"Modified: 4.6.1997 / 12:31:08 / cg"
!
specialSends
"list of selectors which can be sent by specialSend opCode;
adding any here requires a new VM (i.e. you cannot change it)"
^ #(
#top "/ 0
#bottom "/ 1
#left "/ 2
#right "/ 3
#x "/ 4
#y "/ 5
#width "/ 6
#height "/ 7
#origin "/ 8
#extent "/ 9
#asInteger "/ 10
#rounded "/ 11
#next "/ 12
#peek "/ 13
)
"Created: 4.6.1997 / 12:20:28 / cg"
"Modified: 4.6.1997 / 12:31:56 / cg"
! !
!ByteCodeCompiler class methodsFor:'documentation'!
version
^ '$Header$'
!
version_CVS
^ '$Header$'
!
version_SVN
^ '$ Id $'
! !
ByteCodeCompiler initialize!