Language/Expressions/Method_Invocation/Ordinary_Invocation/method_lookup_failed_t20.dart

// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * @assertion If the method lookup has failed, then let g be the result of
 * looking up getter m in vo with respect to L. If vo is an instance of Type
 * but o is not a constant type literal, then if g is a getter that forwards
 * to a static getter, getter lookup fails. If the getter lookup succeeded,
 * let vg be the value of the getter invocation o.m. Then the value of i is
 * the result of invoking the static method Function.apply() with arguments
 * v.g, [o1, ..., on], {xn+1: on+1, ..., xn+k: on+k }.
 * If getter lookup has also failed, then a new instance im of the predefined
 * class Invocation is created, such that:
 * • im.isMethod evaluates to true.
 * • im.memberName evaluates to symbol m.
 * • im.positionalArguments evaluates to an immutable list with the same values
 *   as [o1, ..., on].
 * • im.namedArguments evaluates to an immutable map with the same keys and
 *   values as {xn+1: on+1, ..., xn+k: on+k}.
 * Then the method noSuchMethod() is looked up in vo and invoked with argument
 * im, and the result of this invocation is the result of evaluating i.
 * @description Checks that when m is a getter, then invocation of the form
 * C.m() is equivalent to the expression C.m(...), which in turn is
 * equivalent to C.m.call(...).
 * @author rodionov
 */
import "../../../../Utils/expect.dart";

class Foo {
  const Foo();

  call(x, [y = "foo"]) {
    return "call($x, $y)";
  }
}

class C {
  static Foo m = const Foo();
}

main() {
  Expect.equals("call(1, foo)", C.m(1));
  Expect.equals("call(2, bar)", C.m(2, "bar"));
}