X-Git-Url: http://git.megacz.com/?p=org.ibex.classgen.git;a=blobdiff_plain;f=src%2Forg%2Fibex%2Fclassgen%2FType.java;h=491cc1227a2194dee33741d1f7e929f441d684ae;hp=0a35c653fecb9e72fbe8c6093ec8e62325f06c66;hb=69b2d27ebab56f1b0e4df2a3a301f4d852439e8e;hpb=be231cfa8ce0eac52873b9f0f82b8aecca9c458a

diff --git a/src/org/ibex/classgen/Type.java b/src/org/ibex/classgen/Type.java
index 0a35c65..491cc12 100644
--- a/src/org/ibex/classgen/Type.java
+++ b/src/org/ibex/classgen/Type.java
@@ -19,22 +19,22 @@ public class Type {
     public static final Type CHAR = new Type("C", "char");
     public static final Type SHORT = new Type("S", "short");
     
-    public static final Type.Object OBJECT = new Type.Object("java.lang.Object");
-    public static final Type.Object STRING = new Type.Object("java.lang.String");
-    public static final Type.Object STRINGBUFFER = new Type.Object("java.lang.StringBuffer");
-    public static final Type.Object INTEGER_OBJECT = new Type.Object("java.lang.Integer");
-    public static final Type.Object DOUBLE_OBJECT = new Type.Object("java.lang.Double");
-    public static final Type.Object FLOAT_OBJECT = new Type.Object("java.lang.Float");
+    public static final Type.Class OBJECT = new Type.Class("java.lang.Object");
+    public static final Type.Class STRING = new Type.Class("java.lang.String");
+    public static final Type.Class STRINGBUFFER = new Type.Class("java.lang.StringBuffer");
+    public static final Type.Class INTEGER_OBJECT = new Type.Class("java.lang.Integer");
+    public static final Type.Class DOUBLE_OBJECT = new Type.Class("java.lang.Double");
+    public static final Type.Class FLOAT_OBJECT = new Type.Class("java.lang.Float");
     
     /** A zero element Type[] array (can be passed as the "args" param when a method takes no arguments */
     public static final Type[] NO_ARGS = new Type[0];
     
     /** guarantee: there will only be one instance of Type for a given descriptor ==> equals() and == are interchangeable */
-    public static Type fromDescriptor(String d) {
+    public static Type instance(String d) {
         Type ret = (Type)instances.get(d);
         if (ret != null) return ret;
-        if (d.endsWith("[")) return new Type.Array(fromDescriptor(d.substring(d.length()-1)));
-        return new Type.Object(d);
+        if (d.startsWith("[")) return new Type.Array(instance(d.substring(1)));
+        return new Type.Class(d);
     }
 
     public       String  toString() { return toString; }
@@ -42,11 +42,15 @@ public class Type {
     public       int     hashCode() { return descriptor.hashCode(); }
     public       boolean equals(java.lang.Object o) { return this==o; }
 
-    public Type.Object asObject() { throw new RuntimeException("attempted to use "+this+" as a Type.Object, which it is not"); }
-    public Type.Array  asArray() { throw new RuntimeException("attempted to use "+this+" as a Type.Array, which it is not"); }
-    public Type.Array  makeArray() { return new Type.Array(this); }
-    public boolean     isObject() { return false; }
-    public boolean     isArray() { return false; }
+    public Type.Array  makeArray() { return (Type.Array)instance("["+descriptor); }
+
+    public Type.Ref    asRef()       { throw new RuntimeException("attempted to use "+this+" as a Type.Ref, which it is not"); }
+    public Type.Class  asClass()     { throw new RuntimeException("attempted to use "+this+" as a Type.Class, which it is not"); }
+    public Type.Array  asArray()     { throw new RuntimeException("attempted to use "+this+" as a Type.Array, which it is not"); }
+    public boolean     isPrimitive() { return !isRef(); }
+    public boolean     isRef()       { return false; }
+    public boolean     isClass()     { return false; }
+    public boolean     isArray()     { return false; }
 
     // Protected/Private //////////////////////////////////////////////////////////////////////////////
 
@@ -58,12 +62,17 @@ public class Type {
         instances.put(this.descriptor = descriptor, this);
     }
 
-    /** Class representing Object types (any non-primitive type) */
-    public static class Object extends Type {
-        protected Object(String s) { super(_initHelper(s), _initHelper2(s)); }
-        protected Object(String descriptor, String hr) { super(_initHelper(descriptor), _initHelper2(hr)); }
-        public Type.Object asObject() { return this; }
-        public boolean isObject() { return true; }
+    public static class Ref extends Type {
+        protected Ref(String descriptor) { super(descriptor); }
+        protected Ref(String descriptor, String humanReadable) { super(descriptor, humanReadable); }
+        public    Type.Ref asRef() { return this; }
+        public    boolean  isRef() { return true; }
+    }
+
+    public static class Class extends Type.Ref {
+        protected Class(String s) { super(_initHelper(s), _initHelper2(s)); }
+        public Type.Class asClass() { return this; }
+        public boolean isClass() { return true; }
         public String getShortName() { return toString.substring(toString.lastIndexOf('.')+1); }
         String internalForm() { return descriptor.substring(1, descriptor.length()-1); }
         private static String _initHelper(String s) {
@@ -80,14 +89,57 @@ public class Type {
             for(int i=0;st.hasMoreTokens();i++) a[i] = st.nextToken();
             return a;
         }
+
+        public Method method(String name, Type returnType, Type[] argTypes) { return new Method(name, returnType, argTypes); }
+        public Field  field(String name, Type type) { return new Field(name, type); }
+
+        public abstract class Member {
+            public final String name;
+            private Member(String name) { this.name = name; }
+            public Type.Class getDeclaringClass() { return Type.Class.this; }
+            public abstract String getDescriptor();
+            public boolean equals(Object o_) {
+                if(!(o_ instanceof Member)) return false;
+                Member o = (Member) o_;
+                return o.getDeclaringClass().equals(getDeclaringClass()) &&
+                    o.name.equals(name) &&
+                    o.getDescriptor().equals(getDescriptor());
+            }
+            public int hashCode() { return getDeclaringClass().hashCode() ^ name.hashCode() ^ getDescriptor().hashCode(); }
+        }
+    
+        public class Field extends Member {
+            /** Create a reference to field <i>name</i> of class <i>c</i> with the type <i>t</i>  */    
+            public final Type type;
+            private Field(String name, Type t) { super(name); this.type = t; }
+            public String getDescriptor() { return name; }
+        }
+
+        public class Method extends Member {
+            final Type[] argTypes;
+            final Type   returnType;
+            private Method(String name, Type returnType, Type[] argTypes) {
+                super(name);
+                this.argTypes = argTypes;
+                this.returnType = returnType;
+            }
+            public String getDescriptor() {
+                StringBuffer sb = new StringBuffer(argTypes.length*4);
+                sb.append("(");
+                for(int i=0;i<argTypes.length;i++) sb.append(argTypes[i].getDescriptor());
+                sb.append(")");
+                sb.append(returnType.getDescriptor());
+                return sb.toString();
+            }
+        }
+
     }    
 
-    public static class Array extends Type.Object {
-        protected Array(Type t) { super(t.getDescriptor() + "[", t.toString() + "[]"); }
+    public static class Array extends Type.Ref {
+        protected Array(Type t) { super("[" + t.getDescriptor(), t.toString() + "[]"); }
         public Type.Array asArray() { return this; }
         public boolean isArray() { return true; }
-        public int dimension() { return descriptor.length() - descriptor.indexOf('['); }
-        String[] components() { throw new Error("Type.Array does not have components()"); }
+        public int dimension() { return getDescriptor().lastIndexOf('['); }
     }
 
 }