private Type.Object thisType;
private Type.Object superType;
int flags;
+ private String sourceFile;
private Vector interfaces = new Vector();
private Vector fields = new Vector();
return mg;
}
+ public final FieldGen addField(String name, Type type, int flags) {
+ FieldGen fg = new FieldGen(this,name,type,flags);
+ fields.addElement(fg);
+ return fg;
+ }
+
+ public void setSourceFile(String sourceFile) { this.sourceFile = sourceFile; }
+
public void dump(String s) throws IOException { dump(new File(s)); }
public void dump(File f) throws IOException {
if(f.isDirectory()) {
}
dump(new FileOutputStream(f));
}
+
public void dump(OutputStream os) throws IOException {
DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(os));
_dump(dos);
cp.add(thisType);
cp.add(superType);
for(int i=0;i<interfaces.size();i++) cp.add((Type.Object)interfaces.elementAt(i));
+ if(sourceFile != null && !attributes.contains("SourceFile")) attributes.add("SourceFile",cp.addUtf8(sourceFile));
+
+ cp.stable();
+
for(int i=0;i<methods.size();i++) ((MethodGen)methods.elementAt(i)).finish();
+
cp.seal();
o.writeInt(0xcafebabe); // magic
- o.writeShort(0); // minor_version
- o.writeShort(46); // major_version
+ o.writeShort(3); // minor_version
+ o.writeShort(45); // major_version
+
o.writeShort(cp.size()); // constant_pool_count
cp.dump(o); // constant_pool
+
o.writeShort(flags);
- o.writeShort(cp.get(thisType).index); // this_class
- o.writeShort(cp.get(superType).index); // super_class
+ o.writeShort(cp.getIndex(thisType)); // this_class
+ o.writeShort(cp.getIndex(superType)); // super_class
+
o.writeShort(interfaces.size()); // interfaces_count
- for(int i=0;i<interfaces.size();i++) o.writeShort(cp.get((Type.Object)interfaces.elementAt(i)).index); // interfaces
+ for(int i=0;i<interfaces.size();i++) o.writeShort(cp.getIndex(interfaces.elementAt(i))); // interfaces
+
o.writeShort(fields.size()); // fields_count
for(int i=0;i<fields.size();i++) ((FieldGen)fields.elementAt(i)).dump(o); // fields
+
o.writeShort(methods.size()); // methods_count
for(int i=0;i<methods.size();i++) ((MethodGen)methods.elementAt(i)).dump(o); // methods
+
o.writeShort(attributes.size()); // attributes_count
attributes.dump(o); // attributes
}
- // FEATURE: Make some of these checked exceptions?
public static class Exn extends RuntimeException {
public Exn(String s) { super(s); }
}
-
- public static void main(String[] args) throws Exception {
+
+ public static class NameAndType {
+ String name;
+ String type;
+ NameAndType(String name, String type) { this.name = name; this.type = type; }
+ public boolean equals(Object o_) {
+ if(!(o_ instanceof NameAndType)) return false;
+ NameAndType o = (NameAndType) o_;
+ return o.name.equals(name) && o.type.equals(type);
+ }
+ public int hashCode() { return name.hashCode() ^ type.hashCode(); }
+ }
+
+ public static abstract class FieldMethodRef {
+ Type.Object klass;
+ NameAndType nameAndType;
+ FieldMethodRef(Type.Object klass, NameAndType nameAndType) { this.klass = klass; this.nameAndType = nameAndType; }
+ public boolean equals(Object o_) {
+ if(!(o_ instanceof FieldMethodRef)) return false;
+ FieldMethodRef o = (FieldMethodRef) o_;
+ return o.klass.equals(klass) && o.nameAndType.equals(nameAndType);
+ }
+ public int hashCode() { return klass.hashCode() ^ nameAndType.hashCode(); }
+ }
+
+ public static class InterfaceMethodRef extends FieldMethodRef {
+ public InterfaceMethodRef(MethodRef r) { super(r.klass,r.nameAndType); }
+ public InterfaceMethodRef(Type.Object c, NameAndType t) { super(c,t); }
+ }
+
+ static class AttrGen {
+ private final CPGen cp;
+ private final Hashtable ht = new Hashtable();
+
+ public AttrGen(CPGen cp) {
+ this.cp = cp;
+ }
+
+ public void add(String s, Object data) {
+ cp.addUtf8(s);
+ ht.put(s,data);
+ }
+
+ public boolean contains(String s) { return ht.get(s) != null; }
+
+ public int size() { return ht.size(); }
+
+ public void dump(DataOutput o) throws IOException {
+ for(Enumeration e = ht.keys(); e.hasMoreElements();) {
+ String name = (String) e.nextElement();
+ Object val = ht.get(name);
+ o.writeShort(cp.getUtf8Index(name));
+ if(val instanceof byte[]) {
+ byte[] buf = (byte[]) val;
+ o.writeInt(buf.length);
+ o.write(buf);
+ } else if(val instanceof CPGen.Ent) {
+ o.writeInt(2);
+ o.writeShort(((CPGen.Ent)val).getIndex());
+ } else {
+ throw new Error("should never happen");
+ }
+ }
+ }
+ }
+
+ /*public static void main(String[] args) throws Exception {
+ Type.Object me = new Type.Object("Test");
ClassGen cg = new ClassGen("Test","java.lang.Object",ACC_PUBLIC|ACC_SUPER|ACC_FINAL);
+ FieldGen fg = cg.addField("foo",Type.INT,ACC_PUBLIC|ACC_STATIC);
+
MethodGen mg = cg.addMethod("main",Type.VOID,new Type[]{Type.arrayType(Type.STRING)},ACC_STATIC|ACC_PUBLIC);
mg.setMaxLocals(1);
mg.addPushConst(0);
- mg.add(ISTORE_0);
+ //mg.add(ISTORE_0);
+ mg.add(PUTSTATIC, fieldRef(me,"foo",Type.INT));
int top = mg.size();
- mg.add(GETSTATIC,mg.fieldRef(new Type.Object("java.lang.System"),"out",new Type.Object("java.io.PrintStream")));
- mg.add(ILOAD_0);
- mg.add(INVOKEVIRTUAL,mg.methodRef(new Type.Object("java.io.PrintStream"),"println",Type.VOID, new Type[]{Type.INT}));
- mg.add(IINC,new int[]{0,1});
- mg.add(ILOAD_0);
+ mg.add(GETSTATIC,cg.fieldRef(new Type.Object("java.lang.System"),"out",new Type.Object("java.io.PrintStream")));
+ //mg.add(ILOAD_0);
+ mg.add(GETSTATIC,cg.fieldRef(me,"foo",Type.INT));
+ mg.add(INVOKEVIRTUAL,cg.methodRef(new Type.Object("java.io.PrintStream"),"println",Type.VOID, new Type[]{Type.INT}));
+ //mg.add(IINC,new int[]{0,1});
+ //mg.add(ILOAD_0);
+ mg.add(GETSTATIC,cg.fieldRef(me,"foo",Type.INT));
+ mg.addPushConst(1);
+ mg.add(IADD);
+ mg.add(DUP);
+ mg.add(PUTSTATIC,cg.fieldRef(me,"foo",Type.INT));
mg.addPushConst(10);
mg.add(IF_ICMPLT,top);
mg.add(RETURN);
cg.dump("Test.class");
- }
+ }*/
}
projects / org.ibex.classgen.git / blobdiff