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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file relies on the fact that the following declarations have been made | 5 // This file relies on the fact that the following declarations have been made |
6 // in runtime.js: | 6 // in runtime.js: |
7 // var $Object = global.Object; | 7 // var $Object = global.Object; |
8 // var $Boolean = global.Boolean; | 8 // var $Boolean = global.Boolean; |
9 // var $Number = global.Number; | 9 // var $Number = global.Number; |
10 // var $Function = global.Function; | 10 // var $Function = global.Function; |
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1732 | 1732 |
1733 function FunctionSourceString(func) { | 1733 function FunctionSourceString(func) { |
1734 while (%IsJSFunctionProxy(func)) { | 1734 while (%IsJSFunctionProxy(func)) { |
1735 func = %GetCallTrap(func); | 1735 func = %GetCallTrap(func); |
1736 } | 1736 } |
1737 | 1737 |
1738 if (!IS_FUNCTION(func)) { | 1738 if (!IS_FUNCTION(func)) { |
1739 throw new $TypeError('Function.prototype.toString is not generic'); | 1739 throw new $TypeError('Function.prototype.toString is not generic'); |
1740 } | 1740 } |
1741 | 1741 |
| 1742 var classSource = %ClassGetSourceCode(func); |
| 1743 if (IS_STRING(classSource)) { |
| 1744 return classSource; |
| 1745 } |
| 1746 |
1742 var source = %FunctionGetSourceCode(func); | 1747 var source = %FunctionGetSourceCode(func); |
1743 if (!IS_STRING(source) || %FunctionIsBuiltin(func)) { | 1748 if (!IS_STRING(source) || %FunctionIsBuiltin(func)) { |
1744 var name = %FunctionGetName(func); | 1749 var name = %FunctionGetName(func); |
1745 if (name) { | 1750 if (name) { |
1746 // Mimic what KJS does. | 1751 // Mimic what KJS does. |
1747 return 'function ' + name + '() { [native code] }'; | 1752 return 'function ' + name + '() { [native code] }'; |
1748 } else { | 1753 } else { |
1749 return 'function () { [native code] }'; | 1754 return 'function () { [native code] }'; |
1750 } | 1755 } |
1751 } | 1756 } |
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1903 } | 1908 } |
1904 if (!IS_SPEC_FUNCTION(method)) { | 1909 if (!IS_SPEC_FUNCTION(method)) { |
1905 throw MakeTypeError('not_iterable', [obj]); | 1910 throw MakeTypeError('not_iterable', [obj]); |
1906 } | 1911 } |
1907 var iterator = %_CallFunction(obj, method); | 1912 var iterator = %_CallFunction(obj, method); |
1908 if (!IS_SPEC_OBJECT(iterator)) { | 1913 if (!IS_SPEC_OBJECT(iterator)) { |
1909 throw MakeTypeError('not_an_iterator', [iterator]); | 1914 throw MakeTypeError('not_an_iterator', [iterator]); |
1910 } | 1915 } |
1911 return iterator; | 1916 return iterator; |
1912 } | 1917 } |
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