checkTask(td);
}
-
}
public void checkTypeDescriptor(TypeDescriptor td) {
//Make sure the variable is declared as a parameter to the task
VarDescriptor vd=(VarDescriptor)td.getParameterTable().get(varname);
if (vd==null)
- throw new Error("Parameter "+varname+" in Flag Effects not declared");
+ throw new Error("Parameter "+varname+" in Flag Effects not declared in "+td);
fe.setVar(vd);
//Make sure it correspods to a class
}
public void checkMethodBody(ClassDescriptor cd, MethodDescriptor md) {
- //System.out.println("Processing method:"+md);
+ ClassDescriptor superdesc=cd.getSuperDesc();
+ if (superdesc!=null) {
+ Set possiblematches=superdesc.getMethodTable().getSet(md.getSymbol());
+ for(Iterator methodit=possiblematches.iterator();methodit.hasNext();) {
+ MethodDescriptor matchmd=(MethodDescriptor)methodit.next();
+ if (md.matches(matchmd)) {
+ if (matchmd.getModifiers().isFinal()) {
+ throw new Error("Try to override final method in method:"+md+" declared in "+cd);
+ }
+ }
+ }
+ }
BlockNode bn=state.getMethodBody(md);
checkBlockNode(md, md.getParameterTable(),bn);
}
(d instanceof FieldDescriptor)) {
nametable.add(vd);
} else
- throw new Error(vd.getSymbol()+" defined a second time");
+ throw new Error(vd.getSymbol()+" in "+md+" defined a second time");
if (dn.getExpression()!=null)
checkExpressionNode(md, nametable, dn.getExpression(), vd.getType());
}
else
fd=(FieldDescriptor) ltd.getClassDesc().getFieldTable().get(fieldname);
if (fd==null)
- throw new Error("Unknown field "+fieldname + " in "+fan.printNode(0));
+ throw new Error("Unknown field "+fieldname + " in "+fan.printNode(0)+" in "+md);
fan.setField(fd);
if (td!=null)
if (!typeutil.isSuperorType(td,fan.getType()))
String varname=nd.toString();
Descriptor d=(Descriptor)nametable.get(varname);
if (d==null) {
- throw new Error("Name "+varname+" undefined");
+ throw new Error("Name "+varname+" undefined in: "+md);
}
if (d instanceof VarDescriptor) {
nn.setVar(d);
throw new Error("Bad lside in "+an.printNode(0));
checkExpressionNode(md, nametable, an.getDest(), null);
+
/* We want parameter variables to tasks to be immutable */
if (md instanceof TaskDescriptor) {
if (an.getDest() instanceof NameNode) {
}
}
+ if (an.getDest().getType().isString()&&an.getOperation().getOp()==AssignOperation.PLUSEQ) {
+ //String add
+ ClassDescriptor stringcl=typeutil.getClass(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.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()+") not compatible with type of lside ("+an.getDest().getType()+")"+an.printNode(0));
}
if (bestmd==null)
bestmd=currmd;
else {
- if (isMoreSpecific(currmd,bestmd)) {
+ 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 (!isMoreSpecific(bestmd, currmd)) {
+ } else if (!typeutil.isMoreSpecific(bestmd, currmd)) {
throw new Error("No method is most specific");
}
}
}
if (bestmd==null)
- throw new Error("No method found for "+con.printNode(0));
+ throw new Error("No method found for "+con.printNode(0)+" in "+md);
con.setConstructor(bestmd);
}
}
- /** Check to see if md1 is more specific than md2... Informally
- if md2 could always be called given the arguments passed into
- md1 */
-
- boolean isMoreSpecific(MethodDescriptor md1, MethodDescriptor md2) {
- /* Checks if md1 is more specific than md2 */
- if (md1.numParameters()!=md2.numParameters())
- throw new Error();
- for(int i=0;i<md1.numParameters();i++) {
- if (!typeutil.isSuperorType(md2.getParamType(i), md1.getParamType(i)))
- return false;
- }
- if (!typeutil.isSuperorType(md2.getReturnType(), md1.getReturnType()))
- return false;
-
- if (!typeutil.isSuperorType(md2.getClassDesc(), md1.getClassDesc()))
- return false;
-
- return true;
- }
-
/** Check to see if md1 is the same specificity as md2.*/
boolean match(MethodDescriptor md1, MethodDescriptor md2) {
typetolookin=min.getExpression().getType();
} else if (min.getBaseName()!=null) {
String rootname=min.getBaseName().getRoot();
- if (nametable.get(rootname)!=null) {
+ if (rootname.equals("super")) {
+ ClassDescriptor supercd=((MethodDescriptor)md).getClassDesc().getSuperDesc();
+ typetolookin=new TypeDescriptor(supercd);
+ } else if (nametable.get(rootname)!=null) {
//we have an expression
min.setExpression(translateNameDescriptorintoExpression(min.getBaseName()));
checkExpressionNode(md, nametable, min.getExpression(), null);
throw new Error(min.getBaseName()+" undefined");
typetolookin=new TypeDescriptor(cd);
}
+ } else if ((md instanceof MethodDescriptor)&&min.getMethodName().equals("super")) {
+ ClassDescriptor supercd=((MethodDescriptor)md).getClassDesc().getSuperDesc();
+ min.methodid=supercd.getSymbol();
+ typetolookin=new TypeDescriptor(supercd);
} else if (md instanceof MethodDescriptor) {
typetolookin=new TypeDescriptor(((MethodDescriptor)md).getClassDesc());
} else {
if (bestmd==null)
bestmd=currmd;
else {
- if (isMoreSpecific(currmd,bestmd)) {
+ if (typeutil.isMoreSpecific(currmd,bestmd)) {
bestmd=currmd;
- } else if (!isMoreSpecific(bestmd, currmd))
+ } else if (!typeutil.isMoreSpecific(bestmd, currmd))
throw new Error("No method is most specific");
/* Is this more specific than bestmd */
}
}
if (bestmd==null)
- throw new Error("No method found for :"+min.printNode(0));
+ throw new Error("No method found for :"+min.printNode(0)+" in class: " + classtolookin+" in "+md);
min.setMethod(bestmd);
if ((td!=null)&&(min.getType()!=null)&&!typeutil.isSuperorType(td, min.getType()))
on.setType(new TypeDescriptor(TypeDescriptor.BOOLEAN));
break;
+ case Operation.COMP:
+ // 5.6.2 Binary Numeric Promotion
+ //TODO unboxing of reference objects
+ if (ltd.isDouble())
+ throw new Error();
+ else if (ltd.isFloat())
+ throw new Error();
+ else if (ltd.isLong())
+ lefttype=new TypeDescriptor(TypeDescriptor.LONG);
+ else
+ lefttype=new TypeDescriptor(TypeDescriptor.INT);
+ on.setLeftType(lefttype);
+ on.setType(lefttype);
+ break;
+
case Operation.BIT_OR:
case Operation.BIT_XOR:
case Operation.BIT_AND:
on.setType(lefttype);
break;
+ case Operation.ISAVAILABLE:
+ if (!(ltd.isPtr())) {
+ throw new Error("Can't use isavailable on non-pointers/non-parameters.");
+ }
+ lefttype=ltd;
+ on.setLeftType(lefttype);
+ on.setType(new TypeDescriptor(TypeDescriptor.BOOLEAN));
+ break;
case Operation.EQUAL:
case Operation.NOTEQUAL:
// 5.6.2 Binary Numeric Promotion
if (!(ltd.isBoolean()&&rtd.isBoolean()))
throw new Error();
righttype=lefttype=new TypeDescriptor(TypeDescriptor.BOOLEAN);
- } else if (ltd.isPtr()||ltd.isArray()||rtd.isPtr()||rtd.isArray()) {
- if (!((ltd.isPtr()||ltd.isArray())&&(rtd.isPtr()||rtd.isArray())))
+ } else if (ltd.isPtr()||rtd.isPtr()) {
+ if (!(ltd.isPtr()&&rtd.isPtr()))
throw new Error();
righttype=rtd;
lefttype=ltd;
break;
case Operation.ADD:
- //TODO: Need special case for strings eventually
-
+ if (ltd.isString()||rtd.isString()) {
+ ClassDescriptor stringcl=typeutil.getClass(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.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.addArgument(on.getRight());
+ on.right=rightmin;
+ checkExpressionNode(md, nametable, on.getRight(), null);
+ }
+
+ on.setLeftType(stringtd);
+ on.setRightType(stringtd);
+ on.setType(stringtd);
+ break;
+ }
case Operation.SUB:
case Operation.MULT:
case Operation.LEFTSHIFT:
case Operation.RIGHTSHIFT:
+ case Operation.URIGHTSHIFT:
if (!rtd.isIntegerType())
throw new Error();
//5.6.1 Unary Numeric Promotion
projects / IRC.git / blobdiff