mass rename: ACC_FOO

[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 805a727..b657342 100644 (file)
--- a/src/org/ibex/classgen/FieldGen.java
+++ b/src/org/ibex/classgen/FieldGen.java
@@ -2,8 +2,61 @@ package org.ibex.classgen;
 
 import java.io.*;
 
-public class FieldGen {
-    public void dump(DataOutput o) {
-        throw new Error("FIXME");
+/** Class representing a field in a generated classfile
+    @see ClassFile#addField */
+public class FieldGen implements CGConst {
+    private final String name;
+    private final Type type;
+    private final int flags;
+    private final ClassFile.AttrGen attrs;
+
+    StringBuffer debugToString(StringBuffer sb) {
+        sb.append(ClassFile.flagsToString(flags,false));
+        sb.append(type.debugToString());
+        sb.append(" ");
+        sb.append(name);
+        if(attrs.contains("ConstantValue"))
+            sb.append(" = \"").append(attrs.get("ConstantValue")).append("\"");
+        sb.append(";");
+        return sb;
+    }
+    
+    FieldGen(DataInput in, ConstantPool cp) throws IOException {
+        flags = in.readShort();
+        if((flags & ~(PUBLIC|PRIVATE|PROTECTED|VOLATILE|TRANSIENT|STATIC|FINAL)) != 0)
+            throw new ClassFile.ClassReadExn("invalid flags");        
+        name = cp.getUtf8KeyByIndex(in.readShort());
+        type = Type.instance(cp.getUtf8KeyByIndex(in.readShort()));
+        attrs = new ClassFile.AttrGen(in,cp);
+    }
+
+    FieldGen(ClassFile owner, String name, Type type, int flags) {
+        if((flags & ~(PUBLIC|PRIVATE|PROTECTED|VOLATILE|TRANSIENT|STATIC|FINAL)) != 0)
+            throw new IllegalArgumentException("invalid flags");
+        this.name = name;
+        this.type = type;
+        this.flags = flags;
+        this.attrs = new ClassFile.AttrGen();        
+   }
+    
+    /** 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 & STATIC) == 0) throw new IllegalStateException("field does not have the STATIC bit set");
+        attrs.put("ConstantValue",val);
+    }
+    
+    void finish(ConstantPool cp) {
+        cp.addUtf8(name);
+        cp.addUtf8(type.getDescriptor());
+        
+        attrs.finish(cp);
+    }
+    
+    void dump(DataOutput o, ConstantPool cp) throws IOException {
+        o.writeShort(flags);
+        o.writeShort(cp.getUtf8Index(name));
+        o.writeShort(cp.getUtf8Index(type.getDescriptor()));
+        attrs.dump(o,cp);
     }
 }