X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fibex%2Fclassgen%2FFieldGen.java;h=0fa60697f74326d4bd21520fb16609f9d2177e94;hb=e364eb71c265255d2843ef8752a30c854f56fefb;hp=39e91c0b04cc9152180f86894ec2283087fba5fb;hpb=bc9112573cba51be5e7d285ccd3e496be4278c63;p=org.ibex.classgen.git diff --git a/src/org/ibex/classgen/FieldGen.java b/src/org/ibex/classgen/FieldGen.java index 39e91c0..0fa6069 100644 --- a/src/org/ibex/classgen/FieldGen.java +++ b/src/org/ibex/classgen/FieldGen.java @@ -2,31 +2,49 @@ package org.ibex.classgen; import java.io.*; -public class FieldGen implements CGConst { - private final CPGen cp; - private final String name; - private final Type type; - private final int flags; - private final AttrGen attrs; +/** Class representing a field in a generated classfile + @see ClassFile#addField */ +public class FieldGen extends Type.Class.Field.Body { + + StringBuffer toString(StringBuffer sb) { + sb.append(ClassFile.flagsToString(flags, false)); + sb.append(getField().getType().toString()); + sb.append(" "); + sb.append(getField().getName()); + if (attrs.contains("ConstantValue")) sb.append(" = \"").append(attrs.get("ConstantValue")).append("\""); + sb.append(";"); + return sb; + } + + 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 (!isStatic()) throw new IllegalStateException("field does not have the STATIC bit set"); + attrs.put("ConstantValue",val); + } - 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 AttrGen(cp); + void finish(ConstantPool cp) { + cp.addUtf8(getField().getName()); + cp.addUtf8(getField().getType().getDescriptor()); - cp.addUtf8(name); - cp.addUtf8(type.getDescriptor()); + attrs.finish(cp); } - public 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); } }