bug fixes

[IRC.git] / Robust / src / IR / TypeDescriptor.java

diff --git a/Robust/src/IR/TypeDescriptor.java b/Robust/src/IR/TypeDescriptor.java
index 1832c5719678b196554e9be4c190d799580723d7..06c7bdd56d591c6c24e34473cd438abb82f2986d 100644 (file)
--- a/Robust/src/IR/TypeDescriptor.java
+++ b/Robust/src/IR/TypeDescriptor.java
@@ -17,22 +17,198 @@ public class TypeDescriptor extends Descriptor {
     public static final int DOUBLE=8;
     public static final int VOID=9;
     public static final int NULL=10;
-    public static final int CLASS=11;
-
+    public static final int TAG=11;
+    public static final int CLASS=12;
 
 
+    int arraycount;
     int type;
-    NameDescriptor name_desc;
     ClassDescriptor class_desc;
 
-    public void setClassDescriptor(ClassDescriptor cd) {
-       class_desc=cd;
+    public boolean equals(Object o) {
+       if (o instanceof TypeDescriptor) {
+           TypeDescriptor t=(TypeDescriptor)o;
+           if (t.type!=type)
+               return false;
+           if ((type==CLASS)&&(t.class_desc!=class_desc))
+               return false;
+           if (t.arraycount!=arraycount)
+               return false;
+           return true;
+       }
+       return false;
+    }
+
+    public boolean isString() {
+       if (type!=CLASS)
+           return false;
+       if (arraycount>0)
+           return false;
+       if (!getSymbol().equals(TypeUtil.StringClass))
+           return false;
+       return true;
+    }
+
+    public int hashCode() {
+       int hashcode=type^arraycount;
+       if (type==CLASS)
+           hashcode^=getSymbol().hashCode();
+       return hashcode;
+    }
+
+    public TypeDescriptor makeArray(State state) {
+       TypeDescriptor td=new TypeDescriptor(getSymbol());
+       td.arraycount=arraycount+1;
+       td.type=type;
+       td.class_desc=class_desc;
+       state.addArrayType(td);
+       return td;
+    }
+
+    public boolean isArray() {
+       return (arraycount>0);
+    }
+
+    public int getArrayCount() {
+       return arraycount;
+    }
+
+    public TypeDescriptor dereference() {
+       TypeDescriptor td=new TypeDescriptor(getSymbol());
+       if (arraycount==0)
+           throw new Error();
+       td.arraycount=arraycount-1;
+       td.type=type;
+       td.class_desc=class_desc;
+       return td;
+    }
+
+    public String getSafeSymbol() {
+       if (isArray()) 
+           return IR.Flat.BuildCode.arraytype;
+       else if (isClass())
+           return class_desc.getSafeSymbol();
+       else if (isByte())
+           return "char";
+       else if (isChar())
+           return "short";
+       else if (isShort())
+           return "short";
+       else if (isInt())
+           return "int";
+       else if (isBoolean()) //Booleans are ints in C
+           return "int";
+       else if (isLong())
+           return "long long";
+       else if (isVoid())
+           return "void";
+       else if (isDouble())
+           return "double";
+       else if (isFloat())
+           return "float";
+       else throw new Error("Error Type: "+type);
+    }
+
+    public String getRepairSymbol() {
+       if (isArray())
+           return IR.Flat.BuildCode.arraytype;
+       else if (isClass())
+           return class_desc.getSymbol();
+       else if (isByte())
+           return "byte";
+       else if (isChar())
+           return "short";
+       else if (isShort())
+           return "short";
+       else if (isInt())
+           return "int";
+       else if (isBoolean()) //Booleans are ints in C
+           return "int";
+       else if (isLong())
+           return "long long";
+       else if (isVoid())
+           return "void";
+       else if (isDouble())
+           return "double";
+       else if (isFloat())
+           return "float";
+       else throw new Error("Error Type: "+type);
+    }
+
+    public String getSafeDescriptor() {
+       //Can't safely use [ in C
+       if (isArray()) 
+           return "_AR_"+this.dereference().getSafeDescriptor();
+       else if (isClass())
+           return class_desc.getSafeDescriptor();
+       else if (isByte())
+           return "B";
+       else if (isChar())
+           return "C";
+       else if (isShort())
+           return "S";
+       else if (isBoolean())
+           return "Z";
+       else if (isInt())
+           return "I";
+       else if (isLong())
+           return "J";
+       else if (isDouble())
+           return "D";
+       else if (isFloat())
+           return "F";
+       else if (isTag())
+           return "T";
+       else throw new Error(); 
     }
 
+    public boolean isNumber() {
+       return (isIntegerType()||isFloat()||isDouble());
+    }
+
+    public boolean isByte() {
+       return type==BYTE;
+    }
+    public boolean isNull() {
+       return type==NULL;
+    }
+    public boolean isShort() {
+       return type==SHORT;
+    }
+    public boolean isInt() {
+       return type==INT;
+    }
+    public boolean isLong() {
+       return type==LONG;
+    }
+    public boolean isChar() {
+       return type==CHAR;
+    }
+    public boolean isBoolean() {
+       return type==BOOLEAN;
+    }
+    public boolean isFloat() {
+       return type==FLOAT;
+    }
+    public boolean isDouble() {
+       return type==DOUBLE;
+    }
     public boolean isVoid() {
        return type==VOID;
     }
 
+    public boolean isPtr() {
+       return (isClass()||isNull()||isTag()||isArray());
+    }
+
+    public boolean isIntegerType() {
+       return (isInt()||isLong()||isShort()||isChar()||isByte());
+    }
+
+    public void setClassDescriptor(ClassDescriptor cd) {
+       class_desc=cd;
+    }
+  
     public boolean isPrimitive() {
        return ((type>=BYTE)&&(type<=DOUBLE));
     }
@@ -40,22 +216,45 @@ public class TypeDescriptor extends Descriptor {
     public boolean isClass() {
        return type==CLASS;
     }
+    
+    public boolean isTag() {
+       return type==TAG;
+    }
 
     public TypeDescriptor(NameDescriptor name) {
        super(name.toString());
        this.type=CLASS;
-       this.name_desc=name;
        this.class_desc=null;
+       this.arraycount=0;
+    }
+
+    public TypeDescriptor(String st) {
+       super(st);
+       this.type=CLASS;
+       this.class_desc=null;
+       this.arraycount=0;
+    }
+
+    public ClassDescriptor getClassDesc() {
+       return class_desc;
+    }
+
+    public TypeDescriptor(ClassDescriptor cd) {
+       super(cd.getSymbol());
+       this.type=CLASS;
+       this.class_desc=cd;
+       this.arraycount=0;
     }
 
     public TypeDescriptor(int t) {
        super(decodeInt(t));
        this.type=t;
+       this.arraycount=0;
     }
 
     public String toString() {
        if (type==CLASS)
-           return name_desc.toString();
+           return name;
        else 
            return decodeInt(type);
     }
@@ -81,6 +280,8 @@ public class TypeDescriptor extends Descriptor {
            return "void";
        else if (type==NULL)
            return "null";
+       else if (type==TAG)
+           return TypeUtil.TagClass;
        else throw new Error();
     }
 }