Stack loopstack;
HashSet toanalyze;
HashMap<ClassDescriptor, Integer> completed;
-
- //This is the class mappings for a particular file based
- //on the import names. Maps class to canonical class name.
+
+ //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) {
}
ClassDescriptor cd=typeutil.getClass(classname, toanalyze);
checkClass(cd, fullcheck);
-
+
return cd;
}
-
+
public void checkClass(ClassDescriptor cd) {
checkClass(cd, INIT);
}
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.getFlagTable().setParent(cd.getSuperDesc().getFlagTable());
}
}
- // Link together Field, Method tables do classes inherit these from
+ // 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++) {
}
if (oldstatus<INIT&&fullcheck>=INIT) {
/* Check to see that fields are well typed */
- for(Iterator field_it=cd.getFields(); field_it.hasNext();) {
+ 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();) {
+ for(Iterator method_it=cd.getMethods(); method_it.hasNext(); ) {
MethodDescriptor md=(MethodDescriptor)method_it.next();
checkMethod(cd,md);
}
while (!toanalyze.isEmpty()) {
Object obj = toanalyze.iterator().next();
if (obj instanceof TaskDescriptor) {
- toanalyze.remove(obj);
- TaskDescriptor td = (TaskDescriptor) obj;
- try {
- checkTask(td);
- } catch (Error e) {
- System.out.println("Error in " + td);
- throw e;
- }
+ toanalyze.remove(obj);
+ TaskDescriptor td = (TaskDescriptor) obj;
+ try {
+ checkTask(td);
+ } catch (Error e) {
+ System.out.println("Error in " + td);
+ throw e;
+ }
} else {
- ClassDescriptor cd = (ClassDescriptor) obj;
- toanalyze.remove(cd);
- //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);
- throw e;
- }
- }
+ ClassDescriptor cd = (ClassDescriptor) obj;
+ toanalyze.remove(cd);
+ //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);
+ throw e;
+ }
+ }
}
}
}
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 checkContinueBreakNode(Descriptor md, SymbolTable nametable, ContinueBreakNode cbn) {
- 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);
- }
+ 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) {
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;
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;
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) {
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);
+ 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()+")");
+ 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);
- }
+ // 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);
+ 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);
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);
}
if (td!=null)
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);
- }
+ 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);
+ }
}
}
} else {
String varname=nd.toString();
if(varname.equals("this")) {
- // "this"
- nn.setVar((VarDescriptor)nametable.get("this"));
- return;
+ // "this"
+ nn.setVar((VarDescriptor)nametable.get("this"));
+ return;
}
Descriptor d=(Descriptor)nametable.get(varname);
if (d==null) {
- 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);
- }
- }
+ 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);
void checkOffsetNode(Descriptor md, SymbolTable nameTable, OffsetNode ofn, TypeDescriptor td) {
TypeDescriptor ltd=ofn.td;
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(((md instanceof MethodDescriptor)?((MethodDescriptor)md).getClassDesc():null), tn.getExprType());
checkExpressionNode(md, nametable, tn.getExpr(), null);
}
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;
- }
+ 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;
- }
- }
+ 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");
- }
+ 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");
- }
+ 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(!tmp_type.isString()) {
+ throw new Error("Error: mixed type in var initializer list");
+ }
}
}
if(out_type != null) {
(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)||
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));
- }
- }
+ 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));
- }
+ 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 td) {
TypeDescriptor[] tdarray = new TypeDescriptor[con.numArgs()];
for (int i = 0; i < con.numArgs(); i++) {
ExpressionNode en = con.getArg(i);
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);
- flag.setFlag(flag_d);
+ 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);
+ flag.setFlag(flag_d);
}
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");
- else if (!(d instanceof TagVarDescriptor))
- throw new Error(name + " is not a tag descriptor");
- tag.setTag((TagVarDescriptor) d);
+ 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");
+ else if (!(d instanceof TagVarDescriptor))
+ throw new Error(name + " is not a tag descriptor");
+ tag.setTag((TagVarDescriptor) d);
}
}
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())
- continue;
- 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())
- continue;
-
- /* Method okay so far */
- 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())
- throw new Error();
- } else if (!typeutil.isMoreSpecific(bestmd, currmd)) {
- throw new Error("No method is most specific:" + bestmd + " and " + currmd);
- }
-
- /* Is this more specific than bestmd */
- }
+NextMethod: for (Iterator methodit = methoddescriptorset.iterator(); methodit.hasNext(); ) {
+ MethodDescriptor currmd = (MethodDescriptor) methodit.next();
+ /* Need correct number of parameters */
+ if (con.numArgs() != currmd.numParameters())
+ continue;
+ 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())
+ continue;
+
+ /* Method okay so far */
+ 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())
+ throw new Error();
+ } else if (!typeutil.isMoreSpecific(bestmd, currmd)) {
+ 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);
+ throw new Error("No method found for " + con.printNode(0) + " in " + md);
con.setConstructor(bestmd);
}
}
ExpressionNode translateNameDescriptorintoExpression(NameDescriptor nd, int numLine) {
String id=nd.getIdentifier();
NameDescriptor base=nd.getBase();
- if (base==null){
+ if (base==null) {
NameNode nn=new NameNode(nd);
nn.setNumLine(numLine);
return nn;
- }else{
+ } else {
FieldAccessNode fan=new FieldAccessNode(translateNameDescriptorintoExpression(base,numLine),id);
fan.setNumLine(numLine);
return fan;
checkExpressionNode(md,nametable,en,null);
tdarray[i]=en.getType();
if(en.getType().isClass() && en.getType().getClassDesc().isEnum()) {
- tdarray[i] = new TypeDescriptor(TypeDescriptor.INT);
+ tdarray[i] = new TypeDescriptor(TypeDescriptor.INT);
}
}
TypeDescriptor typetolookin=null;
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);
+ 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.getNumLine()));
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
+ // this is not a pure class name, need to add to
min.setExpression(nn);
}
} else {
//if (min.getBaseName().getSymbol().equals("System.out"))
cd=getClass(null, "System");
/*else {
- cd=getClass(min.getBaseName().getSymbol());
- }*/
+ cd=getClass(min.getBaseName().getSymbol());
+ }*/
if (cd==null)
throw new Error("md = "+ md.toString()+ " "+min.getBaseName()+" undefined");
typetolookin=new TypeDescriptor(cd);
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]))
- if(((!tdarray[i].isArray() &&(tdarray[i].isInt() || tdarray[i].isLong()))
+ 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 {
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 (! isstatic && !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")) {
+ && 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;
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();
righttype=lefttype=new TypeDescriptor(TypeDescriptor.BOOLEAN);
} else if (ltd.isPtr()||rtd.isPtr()) {
if (!(ltd.isPtr()&&rtd.isPtr())) {
- if(!rtd.isEnum()) {
- throw new Error();
- }
- }
+ if(!rtd.isEnum()) {
+ throw new Error();
+ }
+ }
righttype=rtd;
lefttype=ltd;
} else if (ltd.isDouble()||rtd.isDouble())
throw new Error("Type of rside not compatible with type of lside"+on.printNode(0));
}
}
-
+
}
projects / IRC.git / blobdiff