System.exit(1);
}
GCClass gc = new GCClass(args[0]);
- for(int i=2;i<args.length;i++) gc.referenceMethod(args[i]);
+ for(int i=2;i<args.length;i++) {
+ if(args[i].startsWith("hint:"))
+ gc.parseHint(args[i].substring(5));
+ else
+ gc.referenceMethod(args[i]);
+ }
gc.go();
gc.dump(new File(args[1]));
}
private final Hashtable completed = new Hashtable();
private final Hashtable references = new Hashtable();
private final Hashtable instansiated = new Hashtable();
+ private final Hashtable hints = new Hashtable();
public GCClass(String classpath) throws ClassNotFoundException {
if(classpath.startsWith("="))
}
}
}
+
+ public void parseHint(String s) throws ClassNotFoundException {
+ int p = s.indexOf(':');
+ if(p == -1) throw new IllegalArgumentException("invalid hint");
+ String cms = s.substring(0,p);
+ String hint = s.substring(p+1);
+ p = cms.lastIndexOf('.');
+ if(p == -1) throw new IllegalArgumentException("invalid hint");
+ String cs = cms.substring(0,p);
+ String ms = cms.substring(p+1);
+
+ JavaClass c = repoGet(cs);
+ Method[] methods = c.getMethods();
+ for(int i=0;i<methods.length;i++) {
+ if(ms.equals("*") || methods[i].getName().equals(ms)) {
+ MethodRef mr = new MethodRef(c,methods[i]);
+ Vector v = (Vector) hints.get(mr);
+ if(v == null) hints.put(mr,v=new Vector());
+ v.add(hint);
+ }
+ }
+ }
private final void referenceMethod(MethodRef m) {
if(completed.get(m) != null) return;
}
}
}
-
+
private void fixup() throws ClassNotFoundException {
for(Enumeration e = references.keys(); e.hasMoreElements(); ) {
ObjectType t = (ObjectType) e.nextElement();
JavaClass c = repoGet(t);
- if(c == null) continue;
-
Hashtable refs = (Hashtable) references.get(t);
- // add a ref to clinit is any fields/methods are referenced
+
+ if(c == null) continue;
+
+ // add a ref to clinit if any fields/methods are referenced
if(refs.size() != 0) {
MethodRef clinit = new MethodRef(t,"<clinit>",Type.VOID,Type.NO_ARGS);
if(findMethod(c,clinit) != null) referenceMethod(clinit);
else if(i instanceof InvokeInstruction) // INVOKESTATIC, INVOKEVIRTUAL, INVOKESPECIAL
referenceMethod(new MethodRef((InvokeInstruction)i,cpg,mr));
}
+
+ if(hints.get(mr) != null) {
+ Vector v = (Vector) hints.get(mr);
+ for(int i=0;i<v.size();i++) referenceMethod((String) v.elementAt(i));
+ }
}
private void process(FieldRef fr) throws ClassNotFoundException {