private IMethod makeArrayContentsConstructor(IClass cls, int nargs) {
JSInstructionFactory insts =
(JSInstructionFactory) cls.getClassLoader().getInstructionFactory();
MethodReference ref = JavaScriptMethods.makeCtorReference(JavaScriptTypes.Array);
JavaScriptSummary S = new JavaScriptSummary(ref, nargs + 1);
S.addConstant(new Integer(nargs + 3), new ConstantValue("prototype"));
S.addStatement(insts.PropertyRead(nargs + 4, 1, nargs + 3));
S.getNextProgramCounter();
S.addStatement(
insts.NewInstruction(
nargs + 5, NewSiteReference.make(S.getNextProgramCounter(), JavaScriptTypes.Array)));
S.addStatement(insts.SetPrototype(nargs + 5, nargs + 4));
// S.addStatement(insts.PutInstruction(nargs + 5, nargs + 4, "__proto__"));
S.getNextProgramCounter();
S.addConstant(new Integer(nargs + 7), new ConstantValue(nargs));
S.addStatement(insts.PutInstruction(nargs + 5, nargs + 7, "length"));
S.getNextProgramCounter();
int vn = nargs + 9;
for (int i = 0; i < nargs; i++, vn += 2) {
S.addConstant(new Integer(vn), new ConstantValue(i));
S.addStatement(insts.PropertyWrite(nargs + 5, vn, i + 1));
S.getNextProgramCounter();
}
S.addStatement(insts.ReturnInstruction(5, false));
S.getNextProgramCounter();
// S.addConstant(vn, new ConstantValue("__proto__"));
return new JavaScriptConstructor(ref, S, cls);
}
