public static IRubyObject inheritanceSearchConst( ThreadContext context, IRubyObject cmVal, MutableCallSite site, String constName, boolean noPrivateConsts) throws Throwable { Ruby runtime = context.runtime; RubyModule module; if (cmVal instanceof RubyModule) { module = (RubyModule) cmVal; } else { throw runtime.newTypeError(cmVal + " is not a type/class"); } IRubyObject constant = noPrivateConsts ? module.getConstantFromNoConstMissing(constName, false) : module.getConstantNoConstMissing(constName); if (constant == null) { constant = UndefinedValue.UNDEFINED; } SwitchPoint switchPoint = (SwitchPoint) runtime.getConstantInvalidator(constName).getData(); // bind constant until invalidated MethodHandle target = Binder.from(site.type()).drop(0, 2).constant(constant); MethodHandle fallback = Binder.from(site.type()) .append(site, constName) .append(noPrivateConsts) .invokeStatic(LOOKUP, Bootstrap.class, "inheritanceSearchConst"); // test that module is same as before MethodHandle test = Binder.from(site.type().changeReturnType(boolean.class)) .drop(0, 1) .insert(1, module.id) .invokeStaticQuiet(LOOKUP, Bootstrap.class, "testArg0ModuleMatch"); target = guardWithTest(test, target, fallback); site.setTarget(switchPoint.guardWithTest(target, fallback)); return constant; }
public static IRubyObject searchConst( ThreadContext context, StaticScope staticScope, MutableCallSite site, String constName, boolean noPrivateConsts) throws Throwable { // Lexical lookup Ruby runtime = context.getRuntime(); RubyModule object = runtime.getObject(); IRubyObject constant = (staticScope == null) ? object.getConstant(constName) : staticScope.getConstantInner(constName); // Inheritance lookup RubyModule module = null; if (constant == null) { // SSS FIXME: Is this null check case correct? module = staticScope == null ? object : staticScope.getModule(); constant = noPrivateConsts ? module.getConstantFromNoConstMissing(constName, false) : module.getConstantNoConstMissing(constName); } // Call const_missing or cache if (constant == null) { return module.callMethod(context, "const_missing", context.runtime.fastNewSymbol(constName)); } SwitchPoint switchPoint = (SwitchPoint) runtime.getConstantInvalidator(constName).getData(); // bind constant until invalidated MethodHandle target = Binder.from(site.type()).drop(0, 2).constant(constant); MethodHandle fallback = Binder.from(site.type()) .append(site, constName) .append(noPrivateConsts) .invokeStatic(LOOKUP, Bootstrap.class, "searchConst"); site.setTarget(switchPoint.guardWithTest(target, fallback)); return constant; }