| // Copyright (c) 2013, 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. |
| |
| import "package:expect/expect.dart"; |
| import 'compiler_helper.dart'; |
| |
| const String TEST_ONE = r""" |
| foo(a) { |
| // Make sure there is a bailout version. |
| foo(a); |
| // This will make a one shot interceptor that will be optimized in |
| // the non-bailout version because we know a is a number. |
| return (a + 42).toString; |
| } |
| """; |
| |
| const String TEST_TWO = r""" |
| foo(a) { |
| var myVariableName = a.toString(); |
| print(myVariableName); |
| print(myVariableName); |
| } |
| """; |
| |
| const String TEST_THREE = r""" |
| class A { |
| var length; |
| } |
| foo(a) { |
| print([]); // Make sure the array class is instantiated. |
| return new A().length + a.length; |
| } |
| """; |
| |
| main() { |
| var generated = compile(TEST_ONE, entry: 'foo'); |
| // Check that the one shot interceptor got converted to a direct |
| // call to the interceptor object. |
| Expect.isTrue(generated.contains('JSNumber_methods.get\$toString(a + 42);')); |
| |
| // Check that one-shot interceptors preserve variable names, see |
| // https://code.google.com/p/dart/issues/detail?id=8106. |
| generated = compile(TEST_TWO, entry: 'foo'); |
| Expect.isTrue(generated.contains(new RegExp(r'[$a-z]+\.toString\$0\(a\)'))); |
| Expect.isTrue(generated.contains('myVariableName')); |
| |
| // Check that an intercepted getter that does not need to be |
| // intercepted, is turned into a regular getter call or field |
| // access. |
| generated = compile(TEST_THREE, entry: 'foo'); |
| Expect.isFalse(generated.contains(r'a.get$length()')); |
| Expect.isTrue(generated.contains(new RegExp(r'[$a-z]+\.A\$\(\)\.length'))); |
| Expect.isTrue( |
| generated.contains(new RegExp(r'[$a-z]+\.get\$length\$a\(a\)'))); |
| } |