temptovar=new Hashtable();
}
+ public Hashtable getMap() {
+ return temptovar;
+ }
+
public void buildFlat() {
- Iterator it=state.classset.iterator();
+ Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
while(it.hasNext()) {
ClassDescriptor cn=(ClassDescriptor)it.next();
flattenClass(cn);
}
+
+ Iterator task_it=state.getTaskSymbolTable().getDescriptorsIterator();
+ while(task_it.hasNext()) {
+ TaskDescriptor td=(TaskDescriptor)task_it.next();
+ flattenTask(td);
+ }
}
+ private void flattenTask(TaskDescriptor td) {
+ BlockNode bn=state.getMethodBody(td);
+ FlatNode fn=flattenBlockNode(bn).getBegin();
+ FlatFlagActionNode ffan=new FlatFlagActionNode(false);
+ ffan.addNext(fn);
+ FlatMethod fm=new FlatMethod(td, ffan);
+
+ for(int i=0;i<td.numParameters();i++) {
+ fm.addParameterTemp(getTempforVar(td.getParameter(i)));
+ }
+
+ /* Flatten Vector of Flag Effects */
+ Vector flags=td.getFlagEffects();
+ updateFlagActionNode(ffan,flags);
+
+ state.addFlatCode(td,fm);
+ }
+
+
+ /* This method transforms a vector of FlagEffects into the FlatFlagActionNode */
+ private void updateFlagActionNode(FlatFlagActionNode ffan, Vector flags) {
+ for(int i=0;i<flags.size();i++) {
+ FlagEffects fes=(FlagEffects)flags.get(i);
+ TempDescriptor flagtemp=getTempforVar(fes.getVar());
+ for(int j=0;j<fes.numEffects();j++) {
+ FlagEffect fe=fes.getEffect(j);
+ ffan.addFlagAction(flagtemp, fe.getFlag(), fe.getStatus());
+ }
+ }
+ }
+
private void flattenClass(ClassDescriptor cn) {
Iterator methodit=cn.getMethods();
while(methodit.hasNext()) {
BlockNode bn=state.getMethodBody(md);
FlatNode fn=flattenBlockNode(bn).getBegin();
FlatMethod fm=new FlatMethod(md, fn);
+ if (!md.isStatic())
+ fm.addParameterTemp(getTempforVar(md.getThis()));
+ for(int i=0;i<md.numParameters();i++) {
+ fm.addParameterTemp(getTempforVar(md.getParameter(i)));
+ }
+ System.out.println(fm.printMethod());
state.addFlatCode(md,fm);
}
}
end=np_end;
}
}
- return new NodePair(begin,end);
+ if (begin==null) {
+ end=begin=new FlatNop();
+ }
+ return new NodePair(begin,end);
}
private NodePair flattenBlockExpressionNode(BlockExpressionNode en) {
- TempDescriptor tmp=TempDescriptor.tempFactory("neverused");
+ TempDescriptor tmp=TempDescriptor.tempFactory("neverused",en.getExpression().getType());
return flattenExpressionNode(en.getExpression(),tmp);
}
- private NodePair flattenAssignmentNode(AssignmentNode an,TempDescriptor out_temp) {
- throw new Error();
+ private NodePair flattenCastNode(CastNode cn,TempDescriptor out_temp) {
+ TempDescriptor tmp=TempDescriptor.tempFactory("tocast",cn.getExpression().getType());
+ NodePair np=flattenExpressionNode(cn.getExpression(), tmp);
+ FlatCastNode fcn=new FlatCastNode(cn.getType(), tmp, out_temp);
+ np.getEnd().addNext(fcn);
+ return new NodePair(np.getBegin(),fcn);
}
- private NodePair flattenCastNode(CastNode cn,TempDescriptor out_temp) {
- throw new Error();
+ private NodePair flattenLiteralNode(LiteralNode ln,TempDescriptor out_temp) {
+ FlatLiteralNode fln=new FlatLiteralNode(ln.getType(), ln.getValue(), out_temp);
+ return new NodePair(fln,fln);
}
private NodePair flattenCreateObjectNode(CreateObjectNode con,TempDescriptor out_temp) {
- throw new Error();
+ TypeDescriptor td=con.getType();
+ if (!td.isArray()) {
+ FlatNew fn=new FlatNew(td, out_temp);
+ TempDescriptor[] temps=new TempDescriptor[con.numArgs()];
+ FlatNode last=fn;
+
+ if (con.getFlagEffects()!=null) {
+ FlatFlagActionNode ffan=new FlatFlagActionNode(false);
+ FlagEffects fes=con.getFlagEffects();
+ TempDescriptor flagtemp=out_temp;
+ for(int j=0;j<fes.numEffects();j++) {
+ FlagEffect fe=fes.getEffect(j);
+ ffan.addFlagAction(flagtemp, fe.getFlag(), fe.getStatus());
+ }
+ last.addNext(ffan);
+ last=ffan;
+ }
+ //Build arguments
+ for(int i=0;i<con.numArgs();i++) {
+ ExpressionNode en=con.getArg(i);
+ TempDescriptor tmp=TempDescriptor.tempFactory("arg",en.getType());
+ temps[i]=tmp;
+ NodePair np=flattenExpressionNode(en, tmp);
+ last.addNext(np.getBegin());
+ last=np.getEnd();
+ }
+ MethodDescriptor md=con.getConstructor();
+ //Call to constructor
+ FlatCall fc=new FlatCall(md, null, out_temp, temps);
+ last.addNext(fc);
+ last=fc;
+ return new NodePair(fn,last);
+ } else {
+ FlatNode first=null;
+ FlatNode last=null;
+ TempDescriptor[] temps=new TempDescriptor[con.numArgs()];
+ for (int i=0;i<con.numArgs();i++) {
+ ExpressionNode en=con.getArg(i);
+ TempDescriptor tmp=TempDescriptor.tempFactory("arg",en.getType());
+ temps[i]=tmp;
+ NodePair np=flattenExpressionNode(en, tmp);
+ if (first==null)
+ first=np.getBegin();
+ else
+ last.addNext(np.getBegin());
+ last=np.getEnd();
+
+ TempDescriptor tmp2=(i==0)?
+ out_temp:
+ TempDescriptor.tempFactory("arg",en.getType());
+ }
+ FlatNew fn=new FlatNew(td, out_temp, temps[0]);
+ last.addNext(fn);
+ if (temps.length>1) {
+ NodePair np=generateNewArrayLoop(temps, td.dereference(), out_temp, 0);
+ fn.addNext(np.getBegin());
+ return new NodePair(first,np.getEnd());
+ } else
+ return new NodePair(first, fn);
+ }
+ }
+
+ private NodePair generateNewArrayLoop(TempDescriptor[] temparray, TypeDescriptor td, TempDescriptor tmp, int i) {
+ TempDescriptor index=TempDescriptor.tempFactory("index",new TypeDescriptor(TypeDescriptor.INT));
+ TempDescriptor tmpone=TempDescriptor.tempFactory("index",new TypeDescriptor(TypeDescriptor.INT));
+ FlatNop fnop=new FlatNop();//last node
+
+ //index=0
+ FlatLiteralNode fln=new FlatLiteralNode(index.getType(),new Integer(0),index);
+ //tmpone=1
+ FlatLiteralNode fln2=new FlatLiteralNode(tmpone.getType(),new Integer(1),tmpone);
+
+ TempDescriptor tmpbool=TempDescriptor.tempFactory("comp",new TypeDescriptor(TypeDescriptor.BOOLEAN));
+
+ FlatOpNode fcomp=new FlatOpNode(tmpbool,index,temparray[i],new Operation(Operation.LT));
+ FlatCondBranch fcb=new FlatCondBranch(tmpbool);
+ //is index<temp[i]
+ TempDescriptor new_tmp=TempDescriptor.tempFactory("tmp",td);
+ FlatNew fn=new FlatNew(td, new_tmp, temparray[i+1]);
+ FlatSetElementNode fsen=new FlatSetElementNode(tmp,index,new_tmp);
+ // index=index+1
+ FlatOpNode fon=new FlatOpNode(index,index,tmpone,new Operation(Operation.ADD));
+ //jump out
+ fln.addNext(fln2);
+ fln2.addNext(fcomp);
+ fcomp.addNext(fcb);
+ fcb.addTrueNext(fn);
+ fcb.addFalseNext(fnop);
+ fn.addNext(fsen);
+ //Recursive call here
+ if ((i+2)<temparray.length) {
+ NodePair np2=generateNewArrayLoop(temparray, td.dereference(), new_tmp, i+1);
+ fsen.addNext(np2.getBegin());
+ np2.getEnd().addNext(fon);
+ } else {
+ fsen.addNext(fon);
+ }
+ fon.addNext(fcomp);
+ return new NodePair(fln, fnop);
+ }
+
+ private NodePair flattenMethodInvokeNode(MethodInvokeNode min,TempDescriptor out_temp) {
+ TempDescriptor[] temps=new TempDescriptor[min.numArgs()];
+ FlatNode first=null;
+ FlatNode last=null;
+ TempDescriptor thisarg=null;
+
+ if (min.getExpression()!=null) {
+ thisarg=TempDescriptor.tempFactory("thisarg",min.getExpression().getType());
+ NodePair np=flattenExpressionNode(min.getExpression(),thisarg);
+ first=np.getBegin();
+ last=np.getEnd();
+ }
+
+ //Build arguments
+ for(int i=0;i<min.numArgs();i++) {
+ ExpressionNode en=min.getArg(i);
+ TempDescriptor td=TempDescriptor.tempFactory("arg",en.getType());
+ temps[i]=td;
+ NodePair np=flattenExpressionNode(en, td);
+ if (first==null)
+ first=np.getBegin();
+ else
+ last.addNext(np.getBegin());
+ last=np.getEnd();
+ }
+
+ MethodDescriptor md=min.getMethod();
+
+ //Call to constructor
+
+ FlatCall fc;
+ if(md.getReturnType()==null||md.getReturnType().isVoid())
+ fc=new FlatCall(md, null, thisarg, temps);
+ else
+ fc=new FlatCall(md, out_temp, thisarg, temps);
+ if (first==null) {
+ first=fc;
+ } else
+ last.addNext(fc);
+ return new NodePair(first,fc);
}
private NodePair flattenFieldAccessNode(FieldAccessNode fan,TempDescriptor out_temp) {
- throw new Error();
+ TempDescriptor tmp=TempDescriptor.tempFactory("temp",fan.getExpression().getType());
+ NodePair npe=flattenExpressionNode(fan.getExpression(),tmp);
+ FlatFieldNode fn=new FlatFieldNode(fan.getField(),tmp,out_temp);
+ npe.getEnd().addNext(fn);
+ return new NodePair(npe.getBegin(),fn);
}
- private NodePair flattenLiteralNode(LiteralNode ln,TempDescriptor out_temp) {
- throw new Error();
+ private NodePair flattenArrayAccessNode(ArrayAccessNode aan,TempDescriptor out_temp) {
+ TempDescriptor tmp=TempDescriptor.tempFactory("temp",aan.getExpression().getType());
+ TempDescriptor tmpindex=TempDescriptor.tempFactory("temp",aan.getIndex().getType());
+ NodePair npe=flattenExpressionNode(aan.getExpression(),tmp);
+ NodePair npi=flattenExpressionNode(aan.getIndex(),tmpindex);
+ FlatElementNode fn=new FlatElementNode(tmp,tmpindex,out_temp);
+ npe.getEnd().addNext(npi.getBegin());
+ npi.getEnd().addNext(fn);
+ return new NodePair(npe.getBegin(),fn);
}
- private NodePair flattenMethodInvokeNode(MethodInvokeNode min,TempDescriptor out_temp) {
+ private NodePair flattenAssignmentNode(AssignmentNode an,TempDescriptor out_temp) {
+ // Three cases:
+ // left side is variable
+ // left side is field
+ // left side is array
+
+ Operation base=an.getOperation().getBaseOp();
+ boolean pre=base==null||(base.getOp()!=Operation.POSTINC&&base.getOp()!=Operation.POSTDEC);
+
+ if (!pre) {
+ //rewrite the base operation
+ base=base.getOp()==Operation.POSTINC?new Operation(Operation.ADD):new Operation(Operation.SUB);
+ }
+ FlatNode first=null;
+ FlatNode last=null;
+ TempDescriptor src_tmp=an.getSrc()==null?TempDescriptor.tempFactory("srctmp",an.getDest().getType()):TempDescriptor.tempFactory("srctmp",an.getSrc().getType());
+
+ //Get src value
+ if (an.getSrc()!=null) {
+ NodePair np_src=flattenExpressionNode(an.getSrc(),src_tmp);
+ first=np_src.getBegin();
+ last=np_src.getEnd();
+ } else if (!pre) {
+ FlatLiteralNode fln=new FlatLiteralNode(new TypeDescriptor(TypeDescriptor.INT) ,new Integer(1),src_tmp);
+ first=fln;
+ last=fln;
+ }
+
+ if (an.getDest().kind()==Kind.FieldAccessNode) {
+ //We are assigning an object field
+
+ FieldAccessNode fan=(FieldAccessNode)an.getDest();
+ ExpressionNode en=fan.getExpression();
+ TempDescriptor dst_tmp=TempDescriptor.tempFactory("dst",en.getType());
+ NodePair np_baseexp=flattenExpressionNode(en, dst_tmp);
+ if (first==null)
+ first=np_baseexp.getBegin();
+ else
+ last.addNext(np_baseexp.getBegin());
+ last=np_baseexp.getEnd();
+
+ //See if we need to perform an operation
+ if (base!=null) {
+ //If it is a preinc we need to store the initial value
+ TempDescriptor src_tmp2=pre?TempDescriptor.tempFactory("src",an.getDest().getType()):out_temp;
+ TempDescriptor tmp=TempDescriptor.tempFactory("srctmp3",an.getDest().getType());
+
+ FlatFieldNode ffn=new FlatFieldNode(fan.getField(), dst_tmp, src_tmp2);
+ last.addNext(ffn);
+ last=ffn;
+ FlatOpNode fon=new FlatOpNode(tmp, src_tmp2, src_tmp, base);
+ src_tmp=tmp;
+ last.addNext(fon);
+ last=fon;
+ }
+
+ FlatSetFieldNode fsfn=new FlatSetFieldNode(dst_tmp, fan.getField(), src_tmp);
+ last.addNext(fsfn);
+ last=fsfn;
+ if (pre) {
+ FlatOpNode fon2=new FlatOpNode(out_temp, src_tmp, null, new Operation(Operation.ASSIGN));
+ fsfn.addNext(fon2);
+ last=fon2;
+ }
+ return new NodePair(first, last);
+ } else if (an.getDest().kind()==Kind.ArrayAccessNode) {
+ //We are assigning an array element
+
+
+ ArrayAccessNode aan=(ArrayAccessNode)an.getDest();
+ ExpressionNode en=aan.getExpression();
+ ExpressionNode enindex=aan.getIndex();
+ TempDescriptor dst_tmp=TempDescriptor.tempFactory("dst",en.getType());
+ TempDescriptor index_tmp=TempDescriptor.tempFactory("index",enindex.getType());
+ NodePair np_baseexp=flattenExpressionNode(en, dst_tmp);
+ NodePair np_indexexp=flattenExpressionNode(enindex, index_tmp);
+ if (first==null)
+ first=np_baseexp.getBegin();
+ else
+ last.addNext(np_baseexp.getBegin());
+ np_baseexp.getEnd().addNext(np_indexexp.getBegin());
+ last=np_indexexp.getEnd();
+
+ //See if we need to perform an operation
+ if (base!=null) {
+ //If it is a preinc we need to store the initial value
+ TempDescriptor src_tmp2=pre?TempDescriptor.tempFactory("src",an.getDest().getType()):out_temp;
+ TempDescriptor tmp=TempDescriptor.tempFactory("srctmp3",an.getDest().getType());
+
+ FlatElementNode fen=new FlatElementNode(dst_tmp, index_tmp, src_tmp2);
+ last.addNext(fen);
+ last=fen;
+ FlatOpNode fon=new FlatOpNode(tmp, src_tmp2, src_tmp, base);
+ src_tmp=tmp;
+ last.addNext(fon);
+ last=fon;
+ }
+
+
+ FlatSetElementNode fsen=new FlatSetElementNode(dst_tmp, index_tmp, src_tmp);
+ last.addNext(fsen);
+ last=fsen;
+ if (pre) {
+ FlatOpNode fon2=new FlatOpNode(out_temp, src_tmp, null, new Operation(Operation.ASSIGN));
+ fsen.addNext(fon2);
+ last=fon2;
+ }
+ return new NodePair(first, last);
+ } else if (an.getDest().kind()==Kind.NameNode) {
+ //We could be assigning a field or variable
+ NameNode nn=(NameNode)an.getDest();
+ if (nn.getExpression()!=null) {
+ //It is a field
+ FieldAccessNode fan=(FieldAccessNode)nn.getExpression();
+ ExpressionNode en=fan.getExpression();
+ TempDescriptor dst_tmp=TempDescriptor.tempFactory("dst",en.getType());
+ NodePair np_baseexp=flattenExpressionNode(en, dst_tmp);
+ if (first==null)
+ first=np_baseexp.getBegin();
+ else
+ last.addNext(np_baseexp.getBegin());
+ last=np_baseexp.getEnd();
+
+ //See if we need to perform an operation
+ if (base!=null) {
+ //If it is a preinc we need to store the initial value
+ TempDescriptor src_tmp2=pre?TempDescriptor.tempFactory("src",an.getDest().getType()):out_temp;
+ TempDescriptor tmp=TempDescriptor.tempFactory("srctmp3",an.getDest().getType());
+
+ FlatFieldNode ffn=new FlatFieldNode(fan.getField(), dst_tmp, src_tmp2);
+ last.addNext(ffn);
+ last=ffn;
+ FlatOpNode fon=new FlatOpNode(tmp, src_tmp2, src_tmp, base);
+ src_tmp=tmp;
+ last.addNext(fon);
+ last=fon;
+ }
+
+
+ FlatSetFieldNode fsfn=new FlatSetFieldNode(dst_tmp, fan.getField(), src_tmp);
+ last.addNext(fsfn);
+ last=fsfn;
+ if (pre) {
+ FlatOpNode fon2=new FlatOpNode(out_temp, src_tmp, null, new Operation(Operation.ASSIGN));
+ fsfn.addNext(fon2);
+ last=fon2;
+ }
+ return new NodePair(first, last);
+ } else {
+ if (nn.getField()!=null) {
+ //It is a field
+ //Get src value
+
+ //See if we need to perform an operation
+ if (base!=null) {
+ //If it is a preinc we need to store the initial value
+ TempDescriptor src_tmp2=pre?TempDescriptor.tempFactory("src",an.getDest().getType()):out_temp;
+ TempDescriptor tmp=TempDescriptor.tempFactory("srctmp3",an.getDest().getType());
+
+ FlatFieldNode ffn=new FlatFieldNode(nn.getField(), getTempforVar(nn.getVar()), src_tmp2);
+ if (first==null)
+ first=ffn;
+ else {
+ last.addNext(ffn);
+ }
+ last=ffn;
+ FlatOpNode fon=new FlatOpNode(tmp, src_tmp2, src_tmp, base);
+ src_tmp=tmp;
+ last.addNext(fon);
+ last=fon;
+ }
+
+ FlatSetFieldNode fsfn=new FlatSetFieldNode(getTempforVar(nn.getVar()), nn.getField(), src_tmp);
+ if (first==null) {
+ first=fsfn;
+ } else {
+ last.addNext(fsfn);
+ }
+ last=fsfn;
+ if (pre) {
+ FlatOpNode fon2=new FlatOpNode(out_temp, src_tmp, null, new Operation(Operation.ASSIGN));
+ fsfn.addNext(fon2);
+ last=fon2;
+ }
+ return new NodePair(first, last);
+ } else {
+ //It is a variable
+ //See if we need to perform an operation
+
+ if (base!=null) {
+ //If it is a preinc we need to store the initial value
+ TempDescriptor src_tmp2=getTempforVar(nn.getVar());
+ TempDescriptor tmp=TempDescriptor.tempFactory("srctmp3",an.getDest().getType());
+ if (!pre) {
+ FlatOpNode fon=new FlatOpNode(out_temp, src_tmp2, null, new Operation(Operation.ASSIGN));
+ if (first==null)
+ first=fon;
+ else
+ last.addNext(fon);
+ last=fon;
+ }
+
+ FlatOpNode fon=new FlatOpNode(tmp, src_tmp2, src_tmp, base);
+ if (first==null)
+ first=fon;
+ else
+ last.addNext(fon);
+ src_tmp=tmp;
+ last=fon;
+ }
+
+ FlatOpNode fon=new FlatOpNode(getTempforVar(nn.getVar()), src_tmp, null, new Operation(Operation.ASSIGN));
+ last.addNext(fon);
+ last=fon;
+ if (pre) {
+ FlatOpNode fon2=new FlatOpNode(out_temp, src_tmp, null, new Operation(Operation.ASSIGN));
+ fon.addNext(fon2);
+ last=fon2;
+ }
+ return new NodePair(first, last);
+ }
+ }
+ }
throw new Error();
}
private NodePair flattenNameNode(NameNode nn,TempDescriptor out_temp) {
- throw new Error();
+ if (nn.getExpression()!=null) {
+ /* Hack - use subtree instead */
+ return flattenExpressionNode(nn.getExpression(),out_temp);
+ } else if (nn.getField()!=null) {
+ TempDescriptor tmp=getTempforVar(nn.getVar());
+ FlatFieldNode ffn=new FlatFieldNode(nn.getField(), tmp, out_temp);
+ return new NodePair(ffn,ffn);
+ } else {
+ TempDescriptor tmp=getTempforVar(nn.getVar());
+ FlatOpNode fon=new FlatOpNode(out_temp, tmp, null, new Operation(Operation.ASSIGN));
+ return new NodePair(fon,fon);
+ }
}
private NodePair flattenOpNode(OpNode on,TempDescriptor out_temp) {
- throw new Error();
+ TempDescriptor temp_left=TempDescriptor.tempFactory("leftop",on.getLeft().getType());
+ TempDescriptor temp_right=null;
+
+ Operation op=on.getOp();
+ /* We've moved this to assignment nodes
+
+ if (op.getOp()==Operation.POSTINC||
+ op.getOp()==Operation.POSTDEC||
+ op.getOp()==Operation.PREINC||
+ op.getOp()==Operation.PREDEC) {
+ LiteralNode ln=new LiteralNode("int",new Integer(1));
+ ln.setType(new TypeDescriptor(TypeDescriptor.INT));
+
+ AssignmentNode an=new AssignmentNode(on.getLeft(),
+ new OpNode(on.getLeft(),ln,
+ new Operation((op.getOp()==Operation.POSTINC||op.getOp()==Operation.PREINC)?Operation.PLUS:Operation.MINUS))
+ );
+ if (op.getOp()==Operation.POSTINC||
+ op.getOp()==Operation.POSTDEC) {
+ //Can't do, this could have side effects
+ NodePair left=flattenExpressionNode(on.getLeft(),out_temp);
+ NodePair assign=flattenAssignmentNode(an,temp_left);
+ left.getEnd().addNext(assign.getBegin());
+ return new NodePair(left.getBegin(),assign.getEnd());
+ } else {
+ NodePair assign=flattenAssignmentNode(an,out_temp);
+ return assign;
+ }
+ } */
+
+ NodePair left=flattenExpressionNode(on.getLeft(),temp_left);
+ NodePair right;
+ if (on.getRight()!=null) {
+ temp_right=TempDescriptor.tempFactory("rightop",on.getRight().getType());
+ right=flattenExpressionNode(on.getRight(),temp_right);
+ } else {
+ FlatNop nop=new FlatNop();
+ right=new NodePair(nop,nop);
+ }
+
+ if (op.getOp()==Operation.LOGIC_OR) {
+ /* Need to do shortcircuiting */
+ FlatCondBranch fcb=new FlatCondBranch(temp_left);
+ FlatOpNode fon1=new FlatOpNode(out_temp,temp_left,null,new Operation(Operation.ASSIGN));
+ FlatOpNode fon2=new FlatOpNode(out_temp,temp_right,null,new Operation(Operation.ASSIGN));
+ FlatNop fnop=new FlatNop();
+ left.getEnd().addNext(fcb);
+ fcb.addFalseNext(right.getBegin());
+ right.getEnd().addNext(fon2);
+ fon2.addNext(fnop);
+ fcb.addTrueNext(fon1);
+ fon1.addNext(fnop);
+ return new NodePair(left.getBegin(), fnop);
+ } else if (op.getOp()==Operation.LOGIC_AND) {
+ /* Need to do shortcircuiting */
+ FlatCondBranch fcb=new FlatCondBranch(temp_left);
+ FlatOpNode fon1=new FlatOpNode(out_temp,temp_left,null,new Operation(Operation.ASSIGN));
+ FlatOpNode fon2=new FlatOpNode(out_temp,temp_right,null,new Operation(Operation.ASSIGN));
+ FlatNop fnop=new FlatNop();
+ left.getEnd().addNext(fcb);
+ fcb.addTrueNext(right.getBegin());
+ right.getEnd().addNext(fon2);
+ fon2.addNext(fnop);
+ fcb.addFalseNext(fon1);
+ fon1.addNext(fnop);
+ return new NodePair(left.getBegin(), fnop);
+ }
+
+ FlatOpNode fon=new FlatOpNode(out_temp,temp_left,temp_right,op);
+ left.getEnd().addNext(right.getBegin());
+ right.getEnd().addNext(fon);
+ return new NodePair(left.getBegin(),fon);
}
private NodePair flattenExpressionNode(ExpressionNode en, TempDescriptor out_temp) {
return flattenCreateObjectNode((CreateObjectNode)en,out_temp);
case Kind.FieldAccessNode:
return flattenFieldAccessNode((FieldAccessNode)en,out_temp);
+ case Kind.ArrayAccessNode:
+ return flattenArrayAccessNode((ArrayAccessNode)en,out_temp);
case Kind.LiteralNode:
return flattenLiteralNode((LiteralNode)en,out_temp);
case Kind.MethodInvokeNode:
private NodePair flattenDeclarationNode(DeclarationNode dn) {
VarDescriptor vd=dn.getVarDescriptor();
TempDescriptor td=getTempforVar(vd);
- return flattenExpressionNode(dn.getExpression(),td);
+ if (dn.getExpression()!=null)
+ return flattenExpressionNode(dn.getExpression(),td);
+ else {
+ FlatNop fn=new FlatNop();
+ return new NodePair(fn,fn);
+ }
}
private TempDescriptor getTempforVar(VarDescriptor vd) {
if (temptovar.containsKey(vd))
return (TempDescriptor)temptovar.get(vd);
else {
- TempDescriptor td=TempDescriptor.tempFactory(vd.getName());
+ TempDescriptor td=TempDescriptor.tempFactory(vd.getName(),vd.getType());
temptovar.put(vd,td);
return td;
}
}
private NodePair flattenIfStatementNode(IfStatementNode isn) {
- TempDescriptor cond_temp=TempDescriptor.tempFactory("condition");
+ TempDescriptor cond_temp=TempDescriptor.tempFactory("condition",new TypeDescriptor(TypeDescriptor.BOOLEAN));
NodePair cond=flattenExpressionNode(isn.getCondition(),cond_temp);
FlatCondBranch fcb=new FlatCondBranch(cond_temp);
NodePair true_np=flattenBlockNode(isn.getTrueBlock());
private NodePair flattenLoopNode(LoopNode ln) {
if (ln.getType()==LoopNode.FORLOOP) {
NodePair initializer=flattenBlockNode(ln.getInitializer());
- TempDescriptor cond_temp=TempDescriptor.tempFactory("condition");
+ TempDescriptor cond_temp=TempDescriptor.tempFactory("condition", new TypeDescriptor(TypeDescriptor.BOOLEAN));
NodePair condition=flattenExpressionNode(ln.getCondition(),cond_temp);
NodePair update=flattenBlockNode(ln.getUpdate());
NodePair body=flattenBlockNode(ln.getBody());
fcb.addTrueNext(body.getBegin());
return new NodePair(begin,nopend);
} else if (ln.getType()==LoopNode.WHILELOOP) {
- TempDescriptor cond_temp=TempDescriptor.tempFactory("condition");
+ TempDescriptor cond_temp=TempDescriptor.tempFactory("condition", new TypeDescriptor(TypeDescriptor.BOOLEAN));
NodePair condition=flattenExpressionNode(ln.getCondition(),cond_temp);
NodePair body=flattenBlockNode(ln.getBody());
FlatNode begin=condition.getBegin();
fcb.addTrueNext(body.getBegin());
return new NodePair(begin,nopend);
} else if (ln.getType()==LoopNode.DOWHILELOOP) {
- TempDescriptor cond_temp=TempDescriptor.tempFactory("condition");
+ TempDescriptor cond_temp=TempDescriptor.tempFactory("condition", new TypeDescriptor(TypeDescriptor.BOOLEAN));
NodePair condition=flattenExpressionNode(ln.getCondition(),cond_temp);
NodePair body=flattenBlockNode(ln.getBody());
FlatNode begin=body.getBegin();
}
private NodePair flattenReturnNode(ReturnNode rntree) {
- TempDescriptor retval=TempDescriptor.tempFactory("ret_value");
- NodePair cond=flattenExpressionNode(rntree.getReturnExpression(),retval);
+ TempDescriptor retval=null;
+ NodePair cond=null;
+ if (rntree.getReturnExpression()!=null) {
+ retval=TempDescriptor.tempFactory("ret_value", rntree.getReturnExpression().getType());
+ cond=flattenExpressionNode(rntree.getReturnExpression(),retval);
+ }
+
FlatReturnNode rnflat=new FlatReturnNode(retval);
- cond.getEnd().addNext(rnflat);
- return new NodePair(cond.getBegin(),rnflat);
+
+ if (cond!=null) {
+ cond.getEnd().addNext(rnflat);
+ return new NodePair(cond.getBegin(),rnflat);
+ } else
+ return new NodePair(rnflat,rnflat);
}
-
+
+ private NodePair flattenTaskExitNode(TaskExitNode ten) {
+ FlatFlagActionNode ffan=new FlatFlagActionNode(true);
+ updateFlagActionNode(ffan, ten.getFlagEffects());
+ return new NodePair(ffan, ffan);
+ }
+
private NodePair flattenSubBlockNode(SubBlockNode sbn) {
return flattenBlockNode(sbn.getBlockNode());
}
case Kind.ReturnNode:
return flattenReturnNode((IR.Tree.ReturnNode)bsn);
+
+ case Kind.TaskExitNode:
+ return flattenTaskExitNode((IR.Tree.TaskExitNode)bsn);
case Kind.SubBlockNode:
return flattenSubBlockNode((SubBlockNode)bsn);
projects / IRC.git / blobdiff