blob: a7aaaa9d4319ec9276c143c414e155b29ac7050b [file] [log] [blame]
// Copyright (c) 2016, 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.
// @dart = 2.7
// Check that calls through fields elide the call-through stub. This
// optimization is done by the simplifier, so inlining does not need to be
// enabled.
import 'package:async_helper/async_helper.dart';
import 'package:expect/expect.dart';
import '../helpers/compiler_helper.dart';
const String TEST1 = r'''
class W {
final Function _fun;
W(this._fun);
foo(zzz) => _fun(zzz); // this._fun$1(zzz) --> this._fun.call$1(zzz)
}
add1(x) => x + 1;
main() {
var w = new W(add1);
var x = w.foo(42);
}
''';
const String TEST2 = r'''
class W {
final Function __fun;
Function get _fun => __fun;
W(this.__fun);
foo(zzz) => _fun(zzz); // this._fun$1(zzz) stays same.
}
add1(x) => x + 1;
main() {
var w = new W(add1);
var x = w.foo(42);
}
''';
main() {
runTests() async {
String generated1 = await compileAll(TEST1);
// Direct call through field.
Expect.isTrue(generated1.contains(r'this._fun.call$1(zzz)'));
// No stub.
Expect.isFalse(generated1.contains(r'_fun$1:'));
// No call to stub.
Expect.isFalse(generated1.contains(r'_fun$1('));
String generated2 = await compileAll(TEST2);
// No call through field.
Expect.isFalse(generated2.contains(r'this._fun.call$1(zzz)'));
// Call through stub.
Expect.isTrue(generated2.contains(r'this._fun$1(zzz)'));
// Stub is generated.
Expect.isTrue(generated2.contains(r'_fun$1:'));
// Call through getter (inside stub).
Expect.isTrue(generated2.contains(r'get$_fun().call$1'));
}
asyncTest(() async {
print('--test from kernel------------------------------------------------');
await runTests();
});
}