TypeUtil typeutil;
Stack loopstack;
HashSet toanalyze;
- HashSet completed;
+ HashMap<ClassDescriptor, Integer> completed;
+ //This is the class mappings for a particular file based
+ //on the import names. Maps class to canonical class name.
+ static Hashtable singleImportMap;
+ public static final int NOCHECK=0;
+ public static final int REFERENCE=1;
+ public static final int INIT=2;
+
+ boolean checkAll;
+
+ public boolean hasLayout(ClassDescriptor cd) {
+ return completed.get(cd)!=null&&completed.get(cd)==INIT;
+ }
public SemanticCheck(State state, TypeUtil tu) {
+ this(state, tu, true);
+ }
+
+ public SemanticCheck(State state, TypeUtil tu, boolean checkAll) {
this.state=state;
this.typeutil=tu;
this.loopstack=new Stack();
this.toanalyze=new HashSet();
- this.completed=new HashSet();
+ this.completed=new HashMap<ClassDescriptor, Integer>();
+ this.checkAll=checkAll;
}
- public ClassDescriptor getClass(String classname) {
+ public ClassDescriptor getClass(ClassDescriptor context, String classname) {
+ return getClass(context, classname, INIT);
+ }
+ public ClassDescriptor getClass(ClassDescriptor context, String classname, int fullcheck) {
+ if (context!=null) {
+// System.out.println(context.getSymbol() + " is looking for " + classname);
+ Hashtable remaptable=context.getSingleImportMappings();
+ classname=remaptable.containsKey(classname)?((String)remaptable.get(classname)):classname;
+ }
ClassDescriptor cd=typeutil.getClass(classname, toanalyze);
- checkClass(cd);
+ checkClass(cd, fullcheck);
+
return cd;
}
- private void checkClass(ClassDescriptor cd) {
- if (!completed.contains(cd)) {
- completed.add(cd);
-
- //Set superclass link up
- if (cd.getSuper()!=null) {
- cd.setSuper(getClass(cd.getSuper()));
- // Link together Field, Method, and Flag tables so classes
- // inherit these from their superclasses
- cd.getFieldTable().setParent(cd.getSuperDesc().getFieldTable());
- cd.getMethodTable().setParent(cd.getSuperDesc().getMethodTable());
- cd.getFlagTable().setParent(cd.getSuperDesc().getFlagTable());
- if(state.MGC) {
- // TODO add version for normal Java later
- // Link together Field, Method tables do classes inherit these from
- // their ancestor interfaces
- Vector<String> sifv = cd.getSuperInterface();
- for(int i = 0; i < sifv.size(); i++) {
- ClassDescriptor superif = getClass(sifv.elementAt(i));
- cd.addSuperInterfaces(superif);
- cd.getFieldTable().addParentIF(superif.getFieldTable());
- cd.getMethodTable().addParentIF(superif.getMethodTable());
- }
- }
- }
-
- /* Check to see that fields are well typed */
- for(Iterator field_it=cd.getFields(); field_it.hasNext();) {
- FieldDescriptor fd=(FieldDescriptor)field_it.next();
- checkField(cd,fd);
- }
-
- boolean hasConstructor = false;
- for(Iterator method_it=cd.getMethods(); method_it.hasNext();) {
- MethodDescriptor md=(MethodDescriptor)method_it.next();
- checkMethod(cd,md);
- hasConstructor |= md.isConstructor();
+ public void checkClass(ClassDescriptor cd) {
+ checkClass(cd, INIT);
+ }
+
+ public void checkClass(ClassDescriptor cd, int fullcheck) {
+ if (!completed.containsKey(cd)||completed.get(cd)<fullcheck) {
+ int oldstatus=completed.containsKey(cd)?completed.get(cd):0;
+ completed.put(cd, fullcheck);
+
+ if (fullcheck>=REFERENCE&&oldstatus<INIT) {
+ //Set superclass link up
+ if (cd.getSuper()!=null) {
+ cd.setSuper(getClass(cd, cd.getSuper(), fullcheck));
+ if(cd.getSuperDesc().isInterface()) {
+ throw new Error("Error! Class " + cd.getSymbol() + " extends interface " + cd.getSuper());
+ }
+ // Link together Field, Method, and Flag tables so classes
+ // inherit these from their superclasses
+ if (oldstatus<REFERENCE) {
+ cd.getFieldTable().setParent(cd.getSuperDesc().getFieldTable());
+ cd.getMethodTable().setParent(cd.getSuperDesc().getMethodTable());
+ cd.getFlagTable().setParent(cd.getSuperDesc().getFlagTable());
+ }
+ }
+ // Link together Field, Method tables do classes inherit these from
+ // their ancestor interfaces
+ Vector<String> sifv = cd.getSuperInterface();
+ for(int i = 0; i < sifv.size(); i++) {
+ ClassDescriptor superif = getClass(cd, sifv.elementAt(i), fullcheck);
+ if(!superif.isInterface()) {
+ throw new Error("Error! Class " + cd.getSymbol() + " implements non-interface " + superif.getSymbol());
+ }
+ if (oldstatus<REFERENCE) {
+ cd.addSuperInterfaces(superif);
+ cd.getFieldTable().addParentIF(superif.getFieldTable());
+ cd.getMethodTable().addParentIF(superif.getMethodTable());
+ }
+ }
}
- if(!hasConstructor) {
- // add a default constructor for this class
- MethodDescriptor md = new MethodDescriptor(new Modifiers(Modifiers.PUBLIC),
- cd.getSymbol(), false);
- BlockNode bn=new BlockNode();
- state.addTreeCode(md,bn);
- cd.addMethod(md);
- checkMethod(cd,md);
+ if (oldstatus<INIT&&fullcheck>=INIT) {
+ /* Check to see that fields are well typed */
+ for(Iterator field_it=cd.getFields(); field_it.hasNext(); ) {
+ FieldDescriptor fd=(FieldDescriptor)field_it.next();
+ checkField(cd,fd);
+ }
+ for(Iterator method_it=cd.getMethods(); method_it.hasNext(); ) {
+ MethodDescriptor md=(MethodDescriptor)method_it.next();
+ checkMethod(cd,md);
+ }
}
}
}
public void semanticCheck() {
- SymbolTable classtable=state.getClassSymbolTable();
+ SymbolTable classtable = state.getClassSymbolTable();
toanalyze.addAll(classtable.getValueSet());
toanalyze.addAll(state.getTaskSymbolTable().getValueSet());
// Do methods next
- while(!toanalyze.isEmpty()) {
- Object obj=toanalyze.iterator().next();
+ while (!toanalyze.isEmpty()) {
+ Object obj = toanalyze.iterator().next();
if (obj instanceof TaskDescriptor) {
toanalyze.remove(obj);
- TaskDescriptor td=(TaskDescriptor)obj;
+ TaskDescriptor td = (TaskDescriptor) obj;
try {
checkTask(td);
- } catch( Error e ) {
- System.out.println( "Error in "+td );
- throw e;
+ } catch (Error e) {
+ System.out.println("Error in " + td);
+ throw e;
}
} else {
- ClassDescriptor cd=(ClassDescriptor)obj;
+ ClassDescriptor cd = (ClassDescriptor) obj;
toanalyze.remove(cd);
- //need to initialize typeutil object here...only place we can
- //get class descriptors without first calling getclass
- getClass(cd.getSymbol());
- for(Iterator method_it=cd.getMethods(); method_it.hasNext();) {
- MethodDescriptor md=(MethodDescriptor)method_it.next();
+ //set the class mappings based on imports.
+ singleImportMap = cd.getSingleImportMappings();
+
+ // need to initialize typeutil object here...only place we can
+ // get class descriptors without first calling getclass
+ getClass(cd, cd.getSymbol());
+ for (Iterator method_it = cd.getMethods(); method_it.hasNext(); ) {
+ MethodDescriptor md = (MethodDescriptor) method_it.next();
try {
- checkMethodBody(cd,md);
- } catch( Error e ) {
- System.out.println( "Error in "+md );
+ checkMethodBody(cd, md);
+ } catch (Error e) {
+ System.out.println("Error in " + md);
throw e;
}
}
}
}
- public void checkTypeDescriptor(TypeDescriptor td) {
+ private void checkTypeDescriptor(ClassDescriptor cd, TypeDescriptor td) {
if (td.isPrimitive())
return; /* Done */
else if (td.isClass()) {
String name=td.toString();
- ClassDescriptor field_cd=getClass(name);
+ ClassDescriptor field_cd=checkAll?getClass(cd, name):getClass(cd, name, REFERENCE);
+
if (field_cd==null)
throw new Error("Undefined class "+name);
td.setClassDescriptor(field_cd);
}
public void checkField(ClassDescriptor cd, FieldDescriptor fd) {
- checkTypeDescriptor(fd.getType());
+ checkTypeDescriptor(cd, fd.getType());
}
public void checkConstraintCheck(TaskDescriptor td, SymbolTable nametable, Vector ccs) {
for(int i=0; i<td.numParameters(); i++) {
/* Check that parameter is well typed */
TypeDescriptor param_type=td.getParamType(i);
- checkTypeDescriptor(param_type);
+ checkTypeDescriptor(null, param_type);
/* Check the parameter's flag expression is well formed */
FlagExpressionNode fen=td.getFlag(td.getParameter(i));
}
public void checkMethod(ClassDescriptor cd, MethodDescriptor md) {
- if(state.MGC) {
- // TODO add version for normal Java later
- /* Check for abstract methods */
- if(md.isAbstract()) {
- if(!cd.isAbstract() && !cd.isInterface()) {
- throw new Error("Error! The non-abstract Class " + cd.getSymbol() + " contains an abstract method " + md.getSymbol());
- }
+ /* Check for abstract methods */
+ if(md.isAbstract()) {
+ if(!cd.isAbstract() && !cd.isInterface()) {
+ throw new Error("Error! The non-abstract Class " + cd.getSymbol() + " contains an abstract method " + md.getSymbol());
}
}
- /* Check return type */
- if (!md.isConstructor())
- if (!md.getReturnType().isVoid())
- checkTypeDescriptor(md.getReturnType());
+ /* Check return type */
+ if (!md.isConstructor() && !md.isStaticBlock())
+ if (!md.getReturnType().isVoid()) {
+ checkTypeDescriptor(cd, md.getReturnType());
+ }
for(int i=0; i<md.numParameters(); i++) {
TypeDescriptor param_type=md.getParamType(i);
- checkTypeDescriptor(param_type);
+ checkTypeDescriptor(cd, param_type);
}
/* Link the naming environments */
if (!md.isStatic()) /* Fields aren't accessible directly in a static method, so don't link in this table */
VarDescriptor thisvd=new VarDescriptor(new TypeDescriptor(cd),"this");
md.setThis(thisvd);
}
+ if(md.isDefaultConstructor() && (cd.getSuperDesc() != null)) {
+ // add the construction of it super class, can only be super()
+ NameDescriptor nd=new NameDescriptor("super");
+ MethodInvokeNode min=new MethodInvokeNode(nd);
+ BlockExpressionNode ben=new BlockExpressionNode(min);
+ BlockNode bn = state.getMethodBody(md);
+ bn.addFirstBlockStatement(ben);
+ }
}
public void checkMethodBody(ClassDescriptor cd, MethodDescriptor md) {
ClassDescriptor superdesc=cd.getSuperDesc();
if (superdesc!=null) {
Set possiblematches=superdesc.getMethodTable().getSet(md.getSymbol());
- for(Iterator methodit=possiblematches.iterator(); methodit.hasNext();) {
+ for(Iterator methodit=possiblematches.iterator(); methodit.hasNext(); ) {
MethodDescriptor matchmd=(MethodDescriptor)methodit.next();
if (md.matches(matchmd)) {
if (matchmd.getModifiers().isFinal()) {
case Kind.IfStatementNode:
checkIfStatementNode(md, nametable, (IfStatementNode)bsn);
return;
-
+
case Kind.SwitchStatementNode:
checkSwitchStatementNode(md, nametable, (SwitchStatementNode)bsn);
return;
return;
case Kind.ContinueBreakNode:
- checkContinueBreakNode(md, nametable, (ContinueBreakNode) bsn);
- return;
+ checkContinueBreakNode(md, nametable, (ContinueBreakNode) bsn);
+ return;
case Kind.SESENode:
case Kind.GenReachNode:
void checkDeclarationNode(Descriptor md, SymbolTable nametable, DeclarationNode dn) {
VarDescriptor vd=dn.getVarDescriptor();
- checkTypeDescriptor(vd.getType());
+ checkTypeDescriptor(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), vd.getType());
Descriptor d=nametable.get(vd.getSymbol());
if ((d==null)||
(d instanceof FieldDescriptor)) {
}
void checkContinueBreakNode(Descriptor md, SymbolTable nametable, ContinueBreakNode cbn) {
- if (loopstack.empty())
- throw new Error("continue/break outside of loop");
- LoopNode ln=(LoopNode)loopstack.peek();
+ if (loopstack.empty())
+ throw new Error("continue/break outside of loop");
+ Object o = loopstack.peek();
+ if(o instanceof LoopNode) {
+ LoopNode ln=(LoopNode)o;
cbn.setLoop(ln);
+ }
}
void checkReturnNode(Descriptor d, SymbolTable nametable, ReturnNode rn) {
if (isn.getFalseBlock()!=null)
checkBlockNode(md, nametable, isn.getFalseBlock());
}
-
+
void checkSwitchStatementNode(Descriptor md, SymbolTable nametable, SwitchStatementNode ssn) {
checkExpressionNode(md, nametable, ssn.getCondition(), new TypeDescriptor(TypeDescriptor.INT));
-
+
BlockNode sbn = ssn.getSwitchBody();
boolean hasdefault = false;
for(int i = 0; i < sbn.size(); i++) {
boolean containdefault = checkSwitchBlockNode(md, nametable, (SwitchBlockNode)sbn.get(i));
if(hasdefault && containdefault) {
- throw new Error("Error: duplicate default branch in switch-case statement in Method: " + md.getSymbol());
+ throw new Error("Error: duplicate default branch in switch-case statement in Method: " + md.getSymbol());
}
hasdefault = containdefault;
}
}
-
+
boolean checkSwitchBlockNode(Descriptor md, SymbolTable nametable, SwitchBlockNode sbn) {
Vector<SwitchLabelNode> slnv = sbn.getSwitchConditions();
int defaultb = 0;
for(int i = 0; i < slnv.size(); i++) {
if(slnv.elementAt(i).isdefault) {
- defaultb++;
+ defaultb++;
} else {
- checkConstantExpressionNode(md, nametable, slnv.elementAt(i).getCondition(), new TypeDescriptor(TypeDescriptor.INT));
+ checkConstantExpressionNode(md, nametable, slnv.elementAt(i).getCondition(), new TypeDescriptor(TypeDescriptor.INT));
}
}
if(defaultb > 1) {
throw new Error("Error: duplicate default branch in switch-case statement in Method: " + md.getSymbol());
} else {
+ loopstack.push(sbn);
checkBlockNode(md, nametable, sbn.getSwitchBlockStatement());
+ loopstack.pop();
return (defaultb > 0);
}
}
-
+
void checkConstantExpressionNode(Descriptor md, SymbolTable nametable, ExpressionNode en, TypeDescriptor td) {
switch(en.kind()) {
case Kind.FieldAccessNode:
checkFieldAccessNode(md,nametable,(FieldAccessNode)en,td);
return;
-
+
case Kind.LiteralNode:
checkLiteralNode(md,nametable,(LiteralNode)en,td);
return;
+
+ case Kind.NameNode:
+ checkNameNode(md,nametable,(NameNode)en,td);
+ return;
+
+ case Kind.OpNode:
+ checkOpNode(md, nametable, (OpNode)en, td);
+ return;
}
throw new Error();
}
case Kind.TertiaryNode:
checkTertiaryNode(md, nametable, (TertiaryNode)en, td);
return;
-
+
case Kind.InstanceOfNode:
checkInstanceOfNode(md, nametable, (InstanceOfNode) en, td);
return;
case Kind.ArrayInitializerNode:
checkArrayInitializerNode(md, nametable, (ArrayInitializerNode) en, td);
return;
+
+ case Kind.ClassTypeNode:
+ checkClassTypeNode(md, nametable, (ClassTypeNode) en, td);
+ return;
}
throw new Error();
}
+ void checkClassTypeNode(Descriptor md, SymbolTable nametable, ClassTypeNode tn, TypeDescriptor td) {
+ checkTypeDescriptor(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), tn.getType());
+ }
+
void checkCastNode(Descriptor md, SymbolTable nametable, CastNode cn, TypeDescriptor td) {
/* Get type descriptor */
if (cn.getType()==null) {
NameDescriptor typenamed=cn.getTypeName().getName();
- String typename=typenamed.toString();
- TypeDescriptor ntd=new TypeDescriptor(getClass(typename));
+ TypeDescriptor ntd=new TypeDescriptor(getClass(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), typenamed.toString()));
cn.setType(ntd);
}
/* Check the type descriptor */
TypeDescriptor cast_type=cn.getType();
- checkTypeDescriptor(cast_type);
+ checkTypeDescriptor(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null),cast_type);
/* Type check */
if (td!=null) {
fd=FieldDescriptor.arrayLength;
else
fd=(FieldDescriptor) ltd.getClassDesc().getFieldTable().get(fieldname);
- if(state.MGC) {
- // TODO add version for normal Java later
- if(ltd.isStatic()) {
+
+ if(ltd.isClassNameRef()) {
+ // the field access is using a class name directly
if(ltd.getClassDesc().isEnum()) {
- int value = ltd.getClassDesc().getEnumConstant(fieldname);
- if(-1 == value) {
- // check if this field is an enum constant
- throw new Error(fieldname + " is not an enum constant in "+fan.printNode(0)+" in "+md);
- }
- fd = new FieldDescriptor(new Modifiers(Modifiers.PUBLIC|Modifiers.FINAL), new TypeDescriptor(TypeDescriptor.INT), fieldname, null, false);
- fd.setAsEnum();
- fd.setEnumValue(value);
- } else if(!fd.isStatic()) {
- // check if this field is a static field
- throw new Error("Dereference of the non-static field "+ fieldname + " in "+fan.printNode(0)+" in "+md);
+ int value = ltd.getClassDesc().getEnumConstant(fieldname);
+ if(-1 == value) {
+ // check if this field is an enum constant
+ throw new Error(fieldname + " is not an enum constant in "+fan.printNode(0)+" in "+md);
+ }
+ fd = new FieldDescriptor(new Modifiers(Modifiers.PUBLIC|Modifiers.FINAL), new TypeDescriptor(TypeDescriptor.INT), fieldname, null, false);
+ fd.setAsEnum();
+ fd.setEnumValue(value);
+ } else if(fd == null) {
+ throw new Error("Could not find field "+ fieldname + " in "+fan.printNode(0)+" in "+md + " (Line: "+fan.getNumLine()+")");
+ } else if(fd.isStatic()) {
+ // check if this field is a static field
+ if(fd.getExpressionNode() != null) {
+ checkExpressionNode(md,nametable,fd.getExpressionNode(),null);
+ }
+ } else {
+ throw new Error("Dereference of the non-static field "+ fieldname + " in "+fan.printNode(0)+" in "+md);
}
- }
}
+
if (fd==null)
throw new Error("Unknown field "+fieldname + " in "+fan.printNode(0)+" in "+md);
if (fd.getType().iswrapper()) {
FieldAccessNode fan2=new FieldAccessNode(left, fieldname);
+ fan2.setNumLine(left.getNumLine());
fan2.setField(fd);
fan.left=fan2;
fan.fieldname="value";
FieldDescriptor fdwr=(FieldDescriptor) ltdwr.getClassDesc().getFieldTable().get(fieldnamewr);
fan.setField(fdwr);
if (fdwr==null)
- throw new Error("Unknown field "+fieldnamewr + " in "+fan.printNode(0)+" in "+md);
+ throw new Error("Unknown field "+fieldnamewr + " in "+fan.printNode(0)+" in "+md);
} else {
fan.setField(fd);
}
} else if (o instanceof Character) {
ln.setType(new TypeDescriptor(TypeDescriptor.CHAR));
} else if (o instanceof String) {
- ln.setType(new TypeDescriptor(getClass(TypeUtil.StringClass)));
+ ln.setType(new TypeDescriptor(getClass(null, TypeUtil.StringClass)));
}
if (td!=null)
- if (!typeutil.isSuperorType(td,ln.getType()))
- throw new Error("Field node returns "+ln.getType()+", but need "+td+" in "+md);
+ if (!typeutil.isSuperorType(td,ln.getType())) {
+ Long l = ln.evaluate();
+ if((ln.getType().isByte() || ln.getType().isShort()
+ || ln.getType().isChar() || ln.getType().isInt())
+ && (l != null)
+ && (td.isByte() || td.isShort() || td.isChar()
+ || td.isInt() || td.isLong())) {
+ long lnvalue = l.longValue();
+ if((td.isByte() && ((lnvalue > 127) || (lnvalue < -128)))
+ || (td.isShort() && ((lnvalue > 32767) || (lnvalue < -32768)))
+ || (td.isChar() && ((lnvalue > 65535) || (lnvalue < 0)))
+ || (td.isInt() && ((lnvalue > 2147483647) || (lnvalue < -2147483648)))
+ || (td.isLong() && ((lnvalue > 9223372036854775807L) || (lnvalue < -9223372036854775808L)))) {
+ throw new Error("Field node returns "+ln.getType()+", but need "+td+" in "+md);
+ }
+ } else {
+ throw new Error("Field node returns "+ln.getType()+", but need "+td+" in "+md);
+ }
+ }
}
void checkNameNode(Descriptor md, SymbolTable nametable, NameNode nn, TypeDescriptor td) {
if (nd.getBase()!=null) {
/* Big hack */
/* Rewrite NameNode */
- ExpressionNode en=translateNameDescriptorintoExpression(nd);
+ ExpressionNode en=translateNameDescriptorintoExpression(nd,nn.getNumLine());
nn.setExpression(en);
checkExpressionNode(md,nametable,en,td);
} else {
String varname=nd.toString();
+ if(varname.equals("this")) {
+ // "this"
+ nn.setVar((VarDescriptor)nametable.get("this"));
+ return;
+ }
Descriptor d=(Descriptor)nametable.get(varname);
if (d==null) {
- if(state.MGC) {
- // TODO add version for normal Java later
- ClassDescriptor cd = null;
- if(((MethodDescriptor)md).isStaticBlock()) {
- // this is a static block, all the accessed fields should be static field
- cd = ((MethodDescriptor)md).getClassDesc();
- SymbolTable fieldtbl = cd.getFieldTable();
- FieldDescriptor fd=(FieldDescriptor)fieldtbl.get(varname);
- if((fd == null) || (!fd.isStatic())){
- // no such field in the class or it is not a static field
- throw new Error("Name "+varname+" should not be used in static block: "+md);
- } else {
- // this is a static field
- nn.setField(fd);
- nn.setClassDesc(cd);
- return;
- }
- } else {
- cd=getClass(varname);
- if(cd != null) {
- // this is a class name
- nn.setClassDesc(cd);
- return;
- } else {
- throw new Error("Name "+varname+" undefined in: "+md);
- }
- }
- } else {
- throw new Error("Name "+varname+" undefined in: "+md);
- }
+ ClassDescriptor cd = null;
+ if((md instanceof MethodDescriptor) && ((MethodDescriptor)md).isStaticBlock()) {
+ // this is a static block, all the accessed fields should be static field
+ cd = ((MethodDescriptor)md).getClassDesc();
+ SymbolTable fieldtbl = cd.getFieldTable();
+ FieldDescriptor fd=(FieldDescriptor)fieldtbl.get(varname);
+ if((fd == null) || (!fd.isStatic())) {
+ // no such field in the class, check if this is a class
+ if(varname.equals("this")) {
+ throw new Error("Error: access this obj in a static block");
+ }
+ cd=getClass(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), varname);
+ if(cd != null) {
+ // this is a class name
+ nn.setClassDesc(cd);
+ return;
+ } else {
+ throw new Error("Name "+varname+" should not be used in static block: "+md);
+ }
+ } else {
+ // this is a static field
+ nn.setField(fd);
+ nn.setClassDesc(cd);
+ return;
+ }
+ } else {
+ // check if the var is a static field of the class
+ if(md instanceof MethodDescriptor) {
+ cd = ((MethodDescriptor)md).getClassDesc();
+ FieldDescriptor fd = (FieldDescriptor)cd.getFieldTable().get(varname);
+ if((fd != null) && (fd.isStatic())) {
+ nn.setField(fd);
+ nn.setClassDesc(cd);
+ if (td!=null)
+ if (!typeutil.isSuperorType(td,nn.getType()))
+ throw new Error("Field node returns "+nn.getType()+", but need "+td);
+ return;
+ } else if(fd != null) {
+ throw new Error("Name "+varname+" should not be used in " + md);
+ }
+ }
+ cd=getClass(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), varname);
+ if(cd != null) {
+ // this is a class name
+ nn.setClassDesc(cd);
+ return;
+ } else {
+ throw new Error("Name "+varname+" undefined in: "+md);
+ }
+ }
}
if (d instanceof VarDescriptor) {
nn.setVar(d);
String id=nd.getIdentifier();
NameDescriptor base=nd.getBase();
NameNode n=new NameNode(nn.getName());
+ n.setNumLine(nn.getNumLine());
n.setField(fd);
n.setVar((VarDescriptor)nametable.get("this")); /* Need a pointer to this */
FieldAccessNode fan=new FieldAccessNode(n,"value");
+ fan.setNumLine(n.getNumLine());
FieldDescriptor fdval=(FieldDescriptor) fd.getType().getClassDesc().getFieldTable().get("value");
fan.setField(fdval);
nn.setExpression(fan);
void checkOffsetNode(Descriptor md, SymbolTable nameTable, OffsetNode ofn, TypeDescriptor td) {
TypeDescriptor ltd=ofn.td;
- checkTypeDescriptor(ltd);
-
+ checkTypeDescriptor(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null),ltd);
+
String fieldname = ofn.fieldname;
FieldDescriptor fd=null;
if (ltd.isArray()&&fieldname.equals("length")) {
void checkTertiaryNode(Descriptor md, SymbolTable nametable, TertiaryNode tn, TypeDescriptor td) {
checkExpressionNode(md, nametable, tn.getCond(), new TypeDescriptor(TypeDescriptor.BOOLEAN));
- checkExpressionNode(md, nametable, tn.getTrueExpr(), td );
- checkExpressionNode(md, nametable, tn.getFalseExpr(), td );
+ checkExpressionNode(md, nametable, tn.getTrueExpr(), td);
+ checkExpressionNode(md, nametable, tn.getFalseExpr(), td);
}
void checkInstanceOfNode(Descriptor md, SymbolTable nametable, InstanceOfNode tn, TypeDescriptor td) {
if (td!=null&&!td.isBoolean())
throw new Error("Expecting type "+td+"for instanceof expression");
-
- checkTypeDescriptor(tn.getExprType());
+
+ checkTypeDescriptor(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), tn.getExprType());
checkExpressionNode(md, nametable, tn.getExpr(), null);
}
void checkArrayInitializerNode(Descriptor md, SymbolTable nametable, ArrayInitializerNode ain, TypeDescriptor td) {
+ Vector<TypeDescriptor> vec_type = new Vector<TypeDescriptor>();
for( int i = 0; i < ain.numVarInitializers(); ++i ) {
- checkExpressionNode(md, nametable, ain.getVarInitializer(i), td.dereference());
+ checkExpressionNode(md, nametable, ain.getVarInitializer(i), td==null?td:td.dereference());
+ vec_type.add(ain.getVarInitializer(i).getType());
}
+ // descide the type of this variableInitializerNode
+ TypeDescriptor out_type = vec_type.elementAt(0);
+ for(int i = 1; i < vec_type.size(); i++) {
+ TypeDescriptor tmp_type = vec_type.elementAt(i);
+ if(out_type == null) {
+ if(tmp_type != null) {
+ out_type = tmp_type;
+ }
+ } else if(out_type.isNull()) {
+ if(!tmp_type.isNull() ) {
+ if(!tmp_type.isArray()) {
+ throw new Error("Error: mixed type in var initializer list");
+ } else {
+ out_type = tmp_type;
+ }
+ }
+ } else if(out_type.isArray()) {
+ if(tmp_type.isArray()) {
+ if(tmp_type.getArrayCount() > out_type.getArrayCount()) {
+ out_type = tmp_type;
+ }
+ } else if((tmp_type != null) && (!tmp_type.isNull())) {
+ throw new Error("Error: mixed type in var initializer list");
+ }
+ } else if(out_type.isInt()) {
+ if(!tmp_type.isInt()) {
+ throw new Error("Error: mixed type in var initializer list");
+ }
+ } else if(out_type.isString()) {
+ if(!tmp_type.isString()) {
+ throw new Error("Error: mixed type in var initializer list");
+ }
+ }
+ }
+ if(out_type != null) {
+ out_type = out_type.makeArray(state);
+ //out_type.setStatic();
+ }
+ ain.setType(out_type);
}
void checkAssignmentNode(Descriptor md, SymbolTable nametable, AssignmentNode an, TypeDescriptor td) {
(an.getOperation().getBaseOp().getOp()!=Operation.POSTINC&&
an.getOperation().getBaseOp().getOp()!=Operation.POSTDEC))
postinc=false;
- if (!postinc)
+ if (!postinc)
checkExpressionNode(md, nametable, an.getSrc(),td);
//TODO: Need check on validity of operation here
if (!((an.getDest() instanceof FieldAccessNode)||
if (an.getDest().getType().isString()&&an.getOperation().getOp()==AssignOperation.PLUSEQ) {
//String add
- ClassDescriptor stringcl=getClass(TypeUtil.StringClass);
+ ClassDescriptor stringcl=getClass(null, TypeUtil.StringClass);
TypeDescriptor stringtd=new TypeDescriptor(stringcl);
NameDescriptor nd=new NameDescriptor("String");
NameDescriptor valuend=new NameDescriptor(nd, "valueOf");
if (!(an.getSrc().getType().isString()&&(an.getSrc() instanceof OpNode))) {
MethodInvokeNode rightmin=new MethodInvokeNode(valuend);
+ rightmin.setNumLine(an.getSrc().getNumLine());
rightmin.addArgument(an.getSrc());
an.right=rightmin;
checkExpressionNode(md, nametable, an.getSrc(), null);
}
if (!postinc&&!typeutil.isSuperorType(an.getDest().getType(),an.getSrc().getType())) {
- throw new Error("Type of rside ("+an.getSrc().getType().toPrettyString()+") not compatible with type of lside ("+an.getDest().getType().toPrettyString()+")"+an.printNode(0));
+ TypeDescriptor dt = an.getDest().getType();
+ TypeDescriptor st = an.getSrc().getType();
+ if(an.getSrc().kind() == Kind.ArrayInitializerNode) {
+ if(dt.getArrayCount() != st.getArrayCount()) {
+ throw new Error("Type of rside ("+an.getSrc().getType().toPrettyString()+") not compatible with type of lside ("+an.getDest().getType().toPrettyString()+")"+an.printNode(0));
+ } else {
+ do {
+ dt = dt.dereference();
+ st = st.dereference();
+ } while(dt.isArray());
+ if((st.isByte() || st.isShort() || st.isChar() || st.isInt())
+ && (dt.isByte() || dt.isShort() || dt.isChar() || dt.isInt() || dt.isLong())) {
+ return;
+ } else {
+ throw new Error("Type of rside ("+an.getSrc().getType().toPrettyString()+") not compatible with type of lside ("+an.getDest().getType().toPrettyString()+")"+an.printNode(0));
+ }
+ }
+ } else {
+ Long l = an.getSrc().evaluate();
+ if((st.isByte() || st.isShort() || st.isChar() || st.isInt())
+ && (l != null)
+ && (dt.isByte() || dt.isShort() || dt.isChar() || dt.isInt() || dt.isLong())) {
+ long lnvalue = l.longValue();
+ if((dt.isByte() && ((lnvalue > 127) || (lnvalue < -128)))
+ || (dt.isShort() && ((lnvalue > 32767) || (lnvalue < -32768)))
+ || (dt.isChar() && ((lnvalue > 65535) || (lnvalue < 0)))
+ || (dt.isInt() && ((lnvalue > 2147483647) || (lnvalue < -2147483648)))
+ || (dt.isLong() && ((lnvalue > 9223372036854775807L) || (lnvalue < -9223372036854775808L)))) {
+ throw new Error("Type of rside ("+an.getSrc().getType().toPrettyString()+") not compatible with type of lside ("+an.getDest().getType().toPrettyString()+")"+an.printNode(0));
+ }
+ } else {
+ throw new Error("Type of rside ("+an.getSrc().getType().toPrettyString()+") not compatible with type of lside ("+an.getDest().getType().toPrettyString()+")"+an.printNode(0));
+ }
+ }
}
}
void checkLoopNode(Descriptor md, SymbolTable nametable, LoopNode ln) {
- loopstack.push(ln);
+ loopstack.push(ln);
if (ln.getType()==LoopNode.WHILELOOP||ln.getType()==LoopNode.DOWHILELOOP) {
checkExpressionNode(md, nametable, ln.getCondition(), new TypeDescriptor(TypeDescriptor.BOOLEAN));
checkBlockNode(md, nametable, ln.getBody());
}
- void checkCreateObjectNode(Descriptor md, SymbolTable nametable, CreateObjectNode con, TypeDescriptor td) {
- TypeDescriptor[] tdarray=new TypeDescriptor[con.numArgs()];
- for(int i=0; i<con.numArgs(); i++) {
- ExpressionNode en=con.getArg(i);
- checkExpressionNode(md,nametable,en,null);
- tdarray[i]=en.getType();
+ void checkCreateObjectNode(Descriptor md, SymbolTable nametable, CreateObjectNode con,
+ TypeDescriptor td) {
+ TypeDescriptor[] tdarray = new TypeDescriptor[con.numArgs()];
+ for (int i = 0; i < con.numArgs(); i++) {
+ ExpressionNode en = con.getArg(i);
+ checkExpressionNode(md, nametable, en, null);
+ tdarray[i] = en.getType();
}
- TypeDescriptor typetolookin=con.getType();
- checkTypeDescriptor(typetolookin);
+ TypeDescriptor typetolookin = con.getType();
+ checkTypeDescriptor(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), typetolookin);
- if (td!=null&&!typeutil.isSuperorType(td, typetolookin))
- throw new Error(typetolookin + " isn't a "+td);
+ if (td != null && !typeutil.isSuperorType(td, typetolookin))
+ throw new Error(typetolookin + " isn't a " + td);
- /* Check flag effects */
- if (con.getFlagEffects()!=null) {
- FlagEffects fe=con.getFlagEffects();
- ClassDescriptor cd=typetolookin.getClassDesc();
+ /* Check Array Initializers */
+ if ((con.getArrayInitializer() != null)) {
+ checkArrayInitializerNode(md, nametable, con.getArrayInitializer(), td);
+ }
- for(int j=0; j<fe.numEffects(); j++) {
- FlagEffect flag=fe.getEffect(j);
- String name=flag.getName();
- FlagDescriptor flag_d=(FlagDescriptor)cd.getFlagTable().get(name);
- //Make sure the flag is declared
- if (flag_d==null)
- throw new Error("Flag descriptor "+name+" undefined in class: "+cd.getSymbol());
+ /* Check flag effects */
+ if (con.getFlagEffects() != null) {
+ FlagEffects fe = con.getFlagEffects();
+ ClassDescriptor cd = typetolookin.getClassDesc();
+
+ for (int j = 0; j < fe.numEffects(); j++) {
+ FlagEffect flag = fe.getEffect(j);
+ String name = flag.getName();
+ FlagDescriptor flag_d = (FlagDescriptor) cd.getFlagTable().get(name);
+ // Make sure the flag is declared
+ if (flag_d == null)
+ throw new Error("Flag descriptor " + name + " undefined in class: " + cd.getSymbol());
if (flag_d.getExternal())
- throw new Error("Attempting to modify external flag: "+name);
+ throw new Error("Attempting to modify external flag: " + name);
flag.setFlag(flag_d);
}
- for(int j=0; j<fe.numTagEffects(); j++) {
- TagEffect tag=fe.getTagEffect(j);
- String name=tag.getName();
+ for (int j = 0; j < fe.numTagEffects(); j++) {
+ TagEffect tag = fe.getTagEffect(j);
+ String name = tag.getName();
- Descriptor d=(Descriptor)nametable.get(name);
- if (d==null)
- throw new Error("Tag descriptor "+name+" undeclared");
+ Descriptor d = (Descriptor) nametable.get(name);
+ if (d == null)
+ throw new Error("Tag descriptor " + name + " undeclared");
else if (!(d instanceof TagVarDescriptor))
- throw new Error(name+" is not a tag descriptor");
- tag.setTag((TagVarDescriptor)d);
+ throw new Error(name + " is not a tag descriptor");
+ tag.setTag((TagVarDescriptor) d);
}
}
- if ((!typetolookin.isClass())&&(!typetolookin.isArray()))
- throw new Error("Can't allocate primitive type:"+con.printNode(0));
+ if ((!typetolookin.isClass()) && (!typetolookin.isArray()))
+ throw new Error("Can't allocate primitive type:" + con.printNode(0));
if (!typetolookin.isArray()) {
- //Array's don't need constructor calls
- ClassDescriptor classtolookin=typetolookin.getClassDesc();
-
- Set methoddescriptorset=classtolookin.getMethodTable().getSet(typetolookin.getSymbol());
- MethodDescriptor bestmd=null;
-NextMethod:
- for(Iterator methodit=methoddescriptorset.iterator(); methodit.hasNext();) {
- MethodDescriptor currmd=(MethodDescriptor)methodit.next();
+ // Array's don't need constructor calls
+ ClassDescriptor classtolookin = typetolookin.getClassDesc();
+ checkClass(classtolookin, INIT);
+
+ Set methoddescriptorset = classtolookin.getMethodTable().getSet(typetolookin.getSymbol());
+ MethodDescriptor bestmd = null;
+NextMethod: for (Iterator methodit = methoddescriptorset.iterator(); methodit.hasNext(); ) {
+ MethodDescriptor currmd = (MethodDescriptor) methodit.next();
/* Need correct number of parameters */
- if (con.numArgs()!=currmd.numParameters())
+ if (con.numArgs() != currmd.numParameters())
continue;
- for(int i=0; i<con.numArgs(); i++) {
- if (!typeutil.isSuperorType(currmd.getParamType(i),tdarray[i]))
+ for (int i = 0; i < con.numArgs(); i++) {
+ if (!typeutil.isSuperorType(currmd.getParamType(i), tdarray[i]))
continue NextMethod;
}
/* Local allocations can't call global allocator */
- if (!con.isGlobal()&&currmd.isGlobal())
+ if (!con.isGlobal() && currmd.isGlobal())
continue;
/* Method okay so far */
- if (bestmd==null)
- bestmd=currmd;
+ if (bestmd == null)
+ bestmd = currmd;
else {
- if (typeutil.isMoreSpecific(currmd,bestmd)) {
- bestmd=currmd;
- } else if (con.isGlobal()&&match(currmd, bestmd)) {
- if (currmd.isGlobal()&&!bestmd.isGlobal())
- bestmd=currmd;
- else if (currmd.isGlobal()&&bestmd.isGlobal())
+ if (typeutil.isMoreSpecific(currmd, bestmd)) {
+ bestmd = currmd;
+ } else if (con.isGlobal() && match(currmd, bestmd)) {
+ if (currmd.isGlobal() && !bestmd.isGlobal())
+ bestmd = currmd;
+ else if (currmd.isGlobal() && bestmd.isGlobal())
throw new Error();
} else if (!typeutil.isMoreSpecific(bestmd, currmd)) {
- throw new Error("No method is most specific");
+ throw new Error("No method is most specific:" + bestmd + " and " + currmd);
}
/* Is this more specific than bestmd */
}
}
- if (bestmd==null)
- throw new Error("No method found for "+con.printNode(0)+" in "+md);
+ if (bestmd == null)
+ throw new Error("No method found for " + con.printNode(0) + " in " + md);
con.setConstructor(bestmd);
}
}
- ExpressionNode translateNameDescriptorintoExpression(NameDescriptor nd) {
+ ExpressionNode translateNameDescriptorintoExpression(NameDescriptor nd, int numLine) {
String id=nd.getIdentifier();
NameDescriptor base=nd.getBase();
- if (base==null)
- return new NameNode(nd);
- else
- return new FieldAccessNode(translateNameDescriptorintoExpression(base),id);
+ if (base==null) {
+ NameNode nn=new NameNode(nd);
+ nn.setNumLine(numLine);
+ return nn;
+ } else {
+ FieldAccessNode fan=new FieldAccessNode(translateNameDescriptorintoExpression(base,numLine),id);
+ fan.setNumLine(numLine);
+ return fan;
+ }
}
/*Typecheck subexpressions
and get types for expressions*/
+ boolean isstatic = false;
+ if((md instanceof MethodDescriptor) && ((MethodDescriptor)md).isStatic()) {
+ isstatic = true;
+ }
TypeDescriptor[] tdarray=new TypeDescriptor[min.numArgs()];
for(int i=0; i<min.numArgs(); i++) {
ExpressionNode en=min.getArg(i);
checkExpressionNode(md,nametable,en,null);
tdarray[i]=en.getType();
- if(state.MGC && en.getType().isClass() && en.getType().getClassDesc().isEnum()) {
- tdarray[i] = new TypeDescriptor(TypeDescriptor.INT);
+ if(en.getType().isClass() && en.getType().getClassDesc().isEnum()) {
+ tdarray[i] = new TypeDescriptor(TypeDescriptor.INT);
}
}
TypeDescriptor typetolookin=null;
if (rootname.equals("super")) {
ClassDescriptor supercd=((MethodDescriptor)md).getClassDesc().getSuperDesc();
typetolookin=new TypeDescriptor(supercd);
+ min.setSuper();
+ } else if (rootname.equals("this")) {
+ if(isstatic) {
+ throw new Error("use this object in static method md = "+ md.toString());
+ }
+ ClassDescriptor cd=((MethodDescriptor)md).getClassDesc();
+ typetolookin=new TypeDescriptor(cd);
} else if (nametable.get(rootname)!=null) {
//we have an expression
- min.setExpression(translateNameDescriptorintoExpression(min.getBaseName()));
+ min.setExpression(translateNameDescriptorintoExpression(min.getBaseName(),min.getNumLine()));
checkExpressionNode(md, nametable, min.getExpression(), null);
typetolookin=min.getExpression().getType();
} else {
- //we have a type
- ClassDescriptor cd;
- if (min.getBaseName().getSymbol().equals("System.out"))
- cd=getClass("System");
- else
- cd=getClass(min.getBaseName().getSymbol());
- if (cd==null)
- throw new Error("md = "+ md.toString()+ " "+min.getBaseName()+" undefined");
- typetolookin=new TypeDescriptor(cd);
+ if(!min.getBaseName().getSymbol().equals("System.out")) {
+ ExpressionNode nn = translateNameDescriptorintoExpression(min.getBaseName(),min.getNumLine());
+ checkExpressionNode(md, nametable, nn, null);
+ typetolookin = nn.getType();
+ if(!((nn.kind()== Kind.NameNode) && (((NameNode)nn).getField() == null)
+ && (((NameNode)nn).getVar() == null) && (((NameNode)nn).getExpression() == null))) {
+ // this is not a pure class name, need to add to
+ min.setExpression(nn);
+ }
+ } else {
+ //we have a type
+ ClassDescriptor cd = null;
+ //if (min.getBaseName().getSymbol().equals("System.out"))
+ cd=getClass(null, "System");
+ /*else {
+ cd=getClass(min.getBaseName().getSymbol());
+ }*/
+ if (cd==null)
+ throw new Error("md = "+ md.toString()+ " "+min.getBaseName()+" undefined");
+ typetolookin=new TypeDescriptor(cd);
+ }
}
} else if ((md instanceof MethodDescriptor)&&min.getMethodName().equals("super")) {
ClassDescriptor supercd=((MethodDescriptor)md).getClassDesc().getSuperDesc();
if (!typetolookin.isClass())
throw new Error("Error with method call to "+min.getMethodName());
ClassDescriptor classtolookin=typetolookin.getClassDesc();
+ checkClass(classtolookin, INIT);
//System.out.println("Method name="+min.getMethodName());
Set methoddescriptorset=classtolookin.getMethodTable().getSet(min.getMethodName());
MethodDescriptor bestmd=null;
NextMethod:
- for(Iterator methodit=methoddescriptorset.iterator(); methodit.hasNext();) {
+ for(Iterator methodit=methoddescriptorset.iterator(); methodit.hasNext(); ) {
MethodDescriptor currmd=(MethodDescriptor)methodit.next();
/* Need correct number of parameters */
if (min.numArgs()!=currmd.numParameters())
continue;
for(int i=0; i<min.numArgs(); i++) {
if (!typeutil.isSuperorType(currmd.getParamType(i),tdarray[i]))
- continue NextMethod;
+ if(((!tdarray[i].isArray() &&(tdarray[i].isInt() || tdarray[i].isLong()))
+ && currmd.getParamType(i).isClass() && currmd.getParamType(i).getClassDesc().getSymbol().equals("Object"))) {
+ // primitive parameters vs object
+ } else {
+ continue NextMethod;
+ }
}
/* Method okay so far */
if (bestmd==null)
if (typeutil.isMoreSpecific(currmd,bestmd)) {
bestmd=currmd;
} else if (!typeutil.isMoreSpecific(bestmd, currmd))
- throw new Error("No method is most specific");
+ throw new Error("No method is most specific:"+bestmd+" and "+currmd);
/* Is this more specific than bestmd */
}
if ((td!=null)&&(min.getType()!=null)&&!typeutil.isSuperorType(td, min.getType()))
throw new Error(min.getType()+ " is not equal to or a subclass of "+td);
/* Check whether we need to set this parameter to implied this */
- if (!bestmd.isStatic()) {
+ if (!isstatic && !bestmd.isStatic()) {
if (min.getExpression()==null) {
ExpressionNode en=new NameNode(new NameDescriptor("this"));
min.setExpression(en);
checkExpressionNode(md, nametable, min.getExpression(), null);
}
}
+
+ /* Check if we need to wrap primitive paratmeters to objects */
+ for(int i=0; i<min.numArgs(); i++) {
+ if(!tdarray[i].isArray() && (tdarray[i].isInt() || tdarray[i].isLong())
+ && min.getMethod().getParamType(i).isClass() && min.getMethod().getParamType(i).getClassDesc().getSymbol().equals("Object")) {
+ // Shall wrap this primitive parameter as a object
+ ExpressionNode exp = min.getArg(i);
+ TypeDescriptor ptd = null;
+ NameDescriptor nd=null;
+ if(exp.getType().isInt()) {
+ nd = new NameDescriptor("Integer");
+ ptd = state.getTypeDescriptor(nd);
+ } else if(exp.getType().isLong()) {
+ nd = new NameDescriptor("Long");
+ ptd = state.getTypeDescriptor(nd);
+ }
+ boolean isglobal = false;
+ String disjointId = null;
+ CreateObjectNode con=new CreateObjectNode(ptd, isglobal, disjointId);
+ con.addArgument(exp);
+ checkExpressionNode(md, nametable, con, null);
+ min.setArgument(con, i);
+ }
+ }
}
if (on.getRight()!=null)
checkExpressionNode(md, nametable, on.getRight(), null);
TypeDescriptor ltd=on.getLeft().getType();
- TypeDescriptor rtd=on.getRight()!=null ? on.getRight().getType() : null;
+ TypeDescriptor rtd=on.getRight()!=null?on.getRight().getType():null;
TypeDescriptor lefttype=null;
TypeDescriptor righttype=null;
Operation op=on.getOp();
throw new Error();
righttype=lefttype=new TypeDescriptor(TypeDescriptor.BOOLEAN);
} else if (ltd.isPtr()||rtd.isPtr()) {
- if (!(ltd.isPtr()&&rtd.isPtr()))
- throw new Error();
+ if (!(ltd.isPtr()&&rtd.isPtr())) {
+ if(!rtd.isEnum()) {
+ throw new Error();
+ }
+ }
righttype=rtd;
lefttype=ltd;
} else if (ltd.isDouble()||rtd.isDouble())
case Operation.ADD:
if (ltd.isString()||rtd.isString()) {
- ClassDescriptor stringcl=getClass(TypeUtil.StringClass);
+ ClassDescriptor stringcl=getClass(null, TypeUtil.StringClass);
TypeDescriptor stringtd=new TypeDescriptor(stringcl);
NameDescriptor nd=new NameDescriptor("String");
NameDescriptor valuend=new NameDescriptor(nd, "valueOf");
if (!(ltd.isString()&&(on.getLeft() instanceof OpNode))) {
MethodInvokeNode leftmin=new MethodInvokeNode(valuend);
+ leftmin.setNumLine(on.getLeft().getNumLine());
leftmin.addArgument(on.getLeft());
on.left=leftmin;
checkExpressionNode(md, nametable, on.getLeft(), null);
if (!(rtd.isString()&&(on.getRight() instanceof OpNode))) {
MethodInvokeNode rightmin=new MethodInvokeNode(valuend);
+ rightmin.setNumLine(on.getRight().getNumLine());
rightmin.addArgument(on.getRight());
on.right=rightmin;
checkExpressionNode(md, nametable, on.getRight(), null);
throw new Error("Type of rside not compatible with type of lside"+on.printNode(0));
}
}
+
}
projects / IRC.git / blobdiff