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|
-- @authors Frédéric Jouault
-- @date 2007/07/25
-- @description This ACG code generator generates .asm files that run on the ATL VM from ACG models.
acg ACG startsWith ACG {
function Node::suffix() =
if self.mode.oclIsUndefined() then
''
else
'_' + self.mode
endif;
function AnalyzeStat::suffix() =
if self.mode.oclIsUndefined() then
''
else
'_' + self.mode
endif;
asm ACG
name self.metamodel + 'Compiler' {
field 'asmEmitter' : 'J'
field 'col' : 'J'
field 'fileName' : 'S'
operation
context 'A'
name 'main' {
param 'WriteTo' : 'S'
getasm
load 'WriteTo'
set 'fileName'
getasm
push 'OclParametrizedType'
push '#native'
new
dup
push 'Collection'
pcall 'J.setName(S):V'
dup
push 'OclSimpleType'
push '#native'
new
dup
push 'OclAny'
pcall 'J.setName(S):V'
pcall 'J.setElementType(J):V'
set 'col'
foreach(a in self.elements->select(e | e isa Attribute)) {
push a.context
push self.metamodel
findme
push a.name
push '__init' + a.name
pcall 'J.registerHelperAttribute(SS):V'
}
push self.startsWith
push self.metamodel
findme
call 'MMOF!Classifier;.allInstances():QJ'
call 'QJ.asSequence():QJ'
call 'QJ.first():J'
pcall 'J.process():V'
}
operation
context 'J'
name 'process' {
push 'Error: could not find matching node for '
load 'self'
call 'J.oclType():J'
get 'name'
call 'S.+(S):S'
push ' at '
call 'S.+(S):S'
load 'self'
get 'location'
call 'S.+(S):S'
push 'BEGIN'
call 'J.debug(S):J'
}
analyze self.elements
}
Function {
operation
context 'M' + self.acg.metamodel + '!' + self.context + ';'
name self.name {
foreach(p in self.parameters) {
param p.name : 'J'
}
analyze self.body
}
}
Attribute {
operation
context 'M' + self.acg.metamodel + '!' + self.context + ';'
name '__init' + self.name {
analyze self.body
}
}
-- @begin Nodes
ASMNode {
operation
context 'M' + self.acg.metamodel + '!' + self.element + ';'
name 'process' + self.suffix() {
getasm
dup
push 'ASMEmitter'
push '#native'
new
set 'asmEmitter'
get 'asmEmitter'
analyze self.name
pcall 'J.newASM(S):V'
analyze self.statements
getasm
get 'asmEmitter'
getasm
get 'fileName'
pcall 'J.dumpASM(S):V'
}
}
-- For the first node with the same element we generate the process operation that handles all of them.
Node {
let nodesWithSameContext = self.acg.nodes()->select(e | e.element = self.element and e.mode = self.mode) {
if(nodesWithSameContext.indexOf(self) = 1) {
operation
context 'M' + self.acg.metamodel + '!' + self.element + ';'
name 'process' + self.suffix() {
analyze self mode head
foreach(n in nodesWithSameContext->select(e | not e.guard.oclIsUndefined())) {
analyze n.guard
call 'B.not():B'
if thn
analyze n.statements
goto end
thn(n):
}
let unguarded = nodesWithSameContext->select(e | e.guard.oclIsUndefined()).first() {
if(not unguarded.oclIsUndefined()) {
analyze unguarded.statements
} else {
push 'Error: could not find matching node for ' + self.element + ' at '
load 'self'
get 'location'
call 'S.+(S):S'
push 'BEGIN'
call 'J.debug(S):J'
}
}
end:
analyze self mode tail
}
}
}
}
CodeNode mode head {
getasm
get 'asmEmitter'
load 'self'
get 'location'
pcall 'J.beginLineNumberEntry(S):V'
}
CodeNode mode tail {
getasm
get 'asmEmitter'
load 'self'
get 'location'
pcall 'J.endLineNumberEntry(S):V'
}
SimpleNode mode head {}
SimpleNode mode tail {}
-- @end Nodes
-- @begin Statements
-- @begin CompoundStats
function ACG::nodes() = self.elements->select(e | e isa Node);
code ForEachStat {
analyze self.collection
variable self named 'forEach' {
load self
iterate
variable self.iterator named self.iterator.name {
analyze self.statements
}
enditerate
}
}
function Statement::forEach() =
if self.refImmediateComposite() isa ForEachStat then
self.refImmediateComposite()
else
self.refImmediateComposite().forEach()
endif;
code OnceStat {
enditerate
analyze self.statements
load self.forEach()
iterate
store self.forEach().iterator
}
code VariableStat {
getasm
get 'asmEmitter'
analyze self.definition
get '__xmiID__'
analyze self.name
pcall 'J.beginLocalVariableEntry(SS):V'
getasm
get 'asmEmitter'
push 'store'
analyze self.definition
get '__xmiID__'
pcall 'J.emit(SS):V'
analyze self.statements
getasm
get 'asmEmitter'
analyze self.definition
get '__xmiID__'
pcall 'J.endLocalVariableEntry(S):V'
}
code LetStat {
analyze self.value
variable self.variable named self.variable.name {
analyze self.statements
}
}
code OperationStat {
getasm
get 'asmEmitter'
dup
analyze self.name
pcall 'J.addOperation(S):V'
analyze self.context
pcall 'J.setContext(S):V'
analyze self.statements
}
code ConditionalStat | self.elseStatements.size() = 0 {
analyze self.condition
call 'B.not():B'
if thn
analyze self.statements
thn:
}
code ConditionalStat {
analyze self.condition
if thn
analyze self.elseStatements
goto eoi
thn:
analyze self.statements
eoi:
}
code AnalyzeStat {
analyze self.target
dup
getasm
get 'col'
call 'J.oclIsKindOf(J):B'
if thn
pcall 'J.process' + self.suffix() + '():V'
analyze self.statements
goto eoi
thn:
iterate
pcall 'J.process' + self.suffix() + '():V'
analyze self.statements
enditerate
eoi:
}
-- @end CompoundStats
code ReportStat {
push 'Problem'
push 'Problem'
new
dup
push 'EnumLiteral'
push '#native'
new
dup
push self.severity.toString()
set 'name'
set 'severity'
dup
analyze self.message
set 'description'
load 'self'
get 'location'
set 'location'
}
code FieldStat {
getasm
get 'asmEmitter'
analyze self.name
analyze self.type
pcall 'J.addField(SS):V'
}
code ParamStat {
getasm
get 'asmEmitter'
analyze self.name
analyze self.type
pcall 'J.addParameter(SS):V'
}
-- @begin EmitStats
code LabelStat {
getasm
get 'asmEmitter'
push 'label'
analyze self mode id
pcall 'J.emit(SS):V'
}
-- TODO: there is a problem here, when a label is in a loop, because the same "location" may be used
-- several times.
-- Cannot be a CodeNode because there is already a line number entry for it (in default mode, see above)
LabelStat mode id {
load 'self'
get 'location'
push self.location -- __xmiID__ does not work, sometimes there are several with same value!!!
call 'S.+(S):S'
if(not self.id.oclIsUndefined()) {
analyze self.id
get '__xmiID__'
call 'S.+(S):S'
}
-- what is important is that it is unique, name cannot be guarranteed to be unique
}
code NewinStat {
getasm
get 'asmEmitter'
push 'newin'
pcall 'J.emitSimple(S):V'
}
code NewStat {
getasm
get 'asmEmitter'
push 'new'
pcall 'J.emitSimple(S):V'
}
code DeleteStat {
getasm
get 'asmEmitter'
push 'delete'
pcall 'J.emitSimple(S):V'
}
code DupStat {
getasm
get 'asmEmitter'
push 'dup'
pcall 'J.emitSimple(S):V'
}
code DupX1Stat {
getasm
get 'asmEmitter'
push 'dup_x1'
pcall 'J.emitSimple(S):V'
}
code PopStat {
getasm
get 'asmEmitter'
push 'pop'
pcall 'J.emitSimple(S):V'
}
code SwapStat {
getasm
get 'asmEmitter'
push 'swap'
pcall 'J.emitSimple(S):V'
}
code IterateStat {
getasm
get 'asmEmitter'
push 'iterate'
pcall 'J.emitSimple(S):V'
}
code EndIterateStat {
getasm
get 'asmEmitter'
push 'enditerate'
pcall 'J.emitSimple(S):V'
}
code GetAsmStat {
getasm
get 'asmEmitter'
push 'getasm'
pcall 'J.emitSimple(S):V'
}
code FindMEStat {
getasm
get 'asmEmitter'
push 'findme'
pcall 'J.emitSimple(S):V'
}
code PushTStat {
getasm
get 'asmEmitter'
push 'pusht'
pcall 'J.emitSimple(S):V'
}
code PushFStat {
getasm
get 'asmEmitter'
push 'pushf'
pcall 'J.emitSimple(S):V'
}
-- @begin EmitWithOperandStats
code PushStat {
getasm
get 'asmEmitter'
push 'push'
analyze self.operand
pcall 'J.emit(SS):V'
}
code PushIStat {
getasm
get 'asmEmitter'
push 'pushi'
analyze self.operand
call 'J.toString():S'
pcall 'J.emit(SS):V'
}
code PushDStat {
getasm
get 'asmEmitter'
push 'pushd'
analyze self.operand
call 'J.toString():S'
pcall 'J.emit(SS):V'
}
code LoadStat {
getasm
get 'asmEmitter'
push 'load'
analyze self.operand
dup
push 'String'
push '#native'
findme
call 'J.oclIsKindOf(J):B'
if thn
get '__xmiID__'
thn:
pcall 'J.emit(SS):V'
}
code StoreStat {
getasm
get 'asmEmitter'
push 'store'
analyze self.operand
dup
push 'String'
push '#native'
findme
call 'J.oclIsKindOf(J):B'
if thn
get '__xmiID__'
thn:
pcall 'J.emit(SS):V'
}
code CallStat {
getasm
get 'asmEmitter'
push 'call'
analyze self.operand
pcall 'J.emit(SS):V'
}
code PCallStat {
getasm
get 'asmEmitter'
push 'pcall'
analyze self.operand
pcall 'J.emit(SS):V'
}
code SuperCallStat {
getasm
get 'asmEmitter'
push 'supercall'
analyze self.operand
pcall 'J.emit(SS):V'
}
code GetStat {
getasm
get 'asmEmitter'
push 'get'
analyze self.operand
pcall 'J.emit(SS):V'
}
code SetStat {
getasm
get 'asmEmitter'
push 'set'
analyze self.operand
pcall 'J.emit(SS):V'
}
-- @end EmitWithOperandStats
-- @begin EmitWithLabelRefStats
code IfStat {
getasm
get 'asmEmitter'
push 'if'
analyze self.label mode id
pcall 'J.emit(SS):V'
}
code GotoStat {
getasm
get 'asmEmitter'
push 'goto'
analyze self.label mode id
pcall 'J.emit(SS):V'
}
-- @end EmitWithLabelRefStats
-- @end EmitStats
-- @end Statements
-- @begin Expressions
code VariableExp | self.variable isa Parameter {
load self.variable.name
}
code VariableExp {
load self.variable
}
code SelfExp {
load 'self'
}
code LastExp { -- TODO: handle nested foreach
load 'last'
}
code IfExp {
analyze self.condition
if thn
analyze self.elseExp
goto eoi
thn:
analyze self.thenExp
eoi:
}
function LocatedElement::getACG() =
if self.refImmediateComposite() isa ACG then
self.refImmediateComposite()
else
self.refImmediateComposite().getACG()
endif;
code IsAExp {
analyze self.source
push self.type
push self.getACG().metamodel
findme
call 'J.oclIsKindOf(J):B'
}
code LetExp {
analyze self.value
variable self.variable named self.variable.name {
analyze self.in
}
}
-- @begin ProperyCallExps
code NavigationExp {
analyze self.source
get self.name
}
code IteratorExp | self.name = 'collect' {
push 'Sequence'
push '#native'
new
analyze self.source
iterate
variable self.iterator named self.iterator.name {
analyze self.body
call 'CJ.including(J):CJ'
}
enditerate
}
code IteratorExp | self.name = 'select' {
push 'Sequence'
push '#native'
new
analyze self.source
iterate
variable self.iterator named self.iterator.name {
analyze self.body
call 'B.not():B'
if thn
load self.iterator
call 'CJ.including(J):CJ'
thn:
}
enditerate
}
code IteratorExp {
report error 'iterator \'' + self.name + '\' not supported'
}
code OperationCallExp {
analyze self.source
analyze self.arguments
call 'J.' + self.name + '(' + self.arguments->collect(e | 'J').prepend('').sum() + '):J'
}
-- @end ProperyCallExps
-- @begin LiteralExps
code OclUndefinedExp {
push 'Sequence'
push '#native'
new
call 'QJ.first():J'
}
-- @begin CollectionExps
code SequenceExp {
push 'Sequence'
push '#native'
new
analyze self.elements {
call 'CJ.including(J):CJ'
}
}
-- @end CollectionExps
-- @begin Primitive LiteralExps
code BooleanExp | self.value {
pusht
}
code BooleanExp | not self.value {
pushf
}
code IntegerExp {
pushi self.value
}
code StringExp {
push self.value
}
-- @end Primitive LiteralExps
-- @end LiteralExps
-- @end Expressions
}
|