refactored tons of functionality into Class.Body and HasAttributes

[org.ibex.classgen.git] / src / org / ibex / classgen / FieldGen.java

diff --git a/src/org/ibex/classgen/FieldGen.java b/src/org/ibex/classgen/FieldGen.java
index 826eb78..3640834 100644 (file)
--- a/src/org/ibex/classgen/FieldGen.java
+++ b/src/org/ibex/classgen/FieldGen.java
@@ -3,46 +3,48 @@ package org.ibex.classgen;
 import java.io.*;
 
 /** Class representing a field in a generated classfile
-    @see ClassGen#addField */
-public class FieldGen implements CGConst {
-    private final CPGen cp;
-    private final String name;
-    private final Type type;
-    private final int flags;
-    private final ClassGen.AttrGen attrs;
-    
-    private Object constantValue;
+    @see ClassFile#addField */
+public class FieldGen extends Type.Class.Field.Body {
+
+    StringBuffer debugToString(StringBuffer sb) {
+        sb.append(ClassFile.flagsToString(flags, false));
+        sb.append(getField().getType().debugToString());
+        sb.append(" ");
+        sb.append(getField().getName());
+        if (attrs.contains("ConstantValue")) sb.append(" = \"").append(attrs.get("ConstantValue")).append("\"");
+        sb.append(";");
+        return sb;
+    }
     
-    FieldGen(ClassGen owner, String name,Type type, int flags) {
-        if((flags & ~(ACC_PUBLIC|ACC_PRIVATE|ACC_PROTECTED|ACC_VOLATILE|ACC_TRANSIENT|ACC_STATIC|ACC_FINAL)) != 0)
-            throw new IllegalArgumentException("invalid flags");
-        this.cp = owner.cp;
-        this.name = name;
-        this.type = type;
-        this.flags = flags;
-        this.attrs = new ClassGen.AttrGen(cp);
-        
-        cp.addUtf8(name);
-        cp.addUtf8(type.getDescriptor());
+    FieldGen(Type.Class c, DataInput in, ConstantPool cp) throws IOException {
+        this(in.readShort(),
+             c.field(cp.getUtf8KeyByIndex(in.readShort()),
+                     Type.fromDescriptor(cp.getUtf8KeyByIndex(in.readShort()))),
+             new ClassFile.AttrGen(in, cp));
     }
+
+    private FieldGen(int flags, Type.Class.Field field, ClassFile.AttrGen attrs) { this(field, flags, attrs); }
+    FieldGen(Type.Class.Field field, int flags) { this(field, flags, new ClassFile.AttrGen()); }
+    FieldGen(Type.Class.Field field, int flags, ClassFile.AttrGen attrs) { field.super(flags, attrs); }
     
     /** Sets the ContantValue attribute for this field. 
         @param val The value to set this field to. Must be an Integer, Long, Float, Double, or String */
     public void setConstantValue(Object val) {
-        if((flags & ACC_STATIC) == 0) throw new IllegalStateException("field does not have the ACC_STATIC bit set");
-        constantValue = val;
+        if (!isStatic()) throw new IllegalStateException("field does not have the STATIC bit set");
+        attrs.put("ConstantValue",val);
     }
     
-    void finish() {
-        if(constantValue != null && !attrs.contains("ConstantValue"))
-            attrs.add("ConstantValue",cp.add(constantValue));
+    void finish(ConstantPool cp) {
+        cp.addUtf8(getField().getName());
+        cp.addUtf8(getField().getType().getDescriptor());
+        
+        attrs.finish(cp);
     }
     
-    void dump(DataOutput o) throws IOException {
-        o.writeShort(flags);
-        o.writeShort(cp.getUtf8Index(name));
-        o.writeShort(cp.getUtf8Index(type.getDescriptor()));
-        o.writeShort(attrs.size());
-        attrs.dump(o);
+    void dump(DataOutput o, ConstantPool cp) throws IOException {
+        o.writeShort(getFlags());
+        o.writeShort(cp.getUtf8Index(getField().getName()));
+        o.writeShort(cp.getUtf8Index(getField().getType().getDescriptor()));
+        attrs.dump(o,cp);
     }
 }