mirror of https://github.com/lukechilds/node.git
Ryan Dahl
15 years ago
36 changed files with 1012 additions and 423 deletions
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// Copyright 2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Tests the Object.seal and Object.isSealed methods - ES 15.2.3.9 and
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// ES 15.2.3.12
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// Test that we throw an error if an object is not passed as argument.
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var non_objects = new Array(undefined, null, 1, -1, 0, 42.43); |
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for (var key in non_objects) { |
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try { |
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Object.seal(non_objects[key]); |
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assertUnreachable(); |
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} catch(e) { |
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assertTrue(/Object.seal called on non-object/.test(e)); |
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} |
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} |
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for (var key in non_objects) { |
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try { |
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Object.isSealed(non_objects[key]); |
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assertUnreachable(); |
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} catch(e) { |
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assertTrue(/Object.isSealed called on non-object/.test(e)); |
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} |
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} |
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// Test normal data properties.
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var obj = { x: 42, z: 'foobar' }; |
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var desc = Object.getOwnPropertyDescriptor(obj, 'x'); |
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assertTrue(desc.writable); |
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assertTrue(desc.configurable); |
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assertEquals(42, desc.value); |
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desc = Object.getOwnPropertyDescriptor(obj, 'z'); |
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assertTrue(desc.writable); |
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assertTrue(desc.configurable); |
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assertEquals('foobar', desc.value); |
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assertTrue(Object.isExtensible(obj)); |
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assertFalse(Object.isSealed(obj)); |
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Object.seal(obj); |
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// Make sure we are no longer extensible.
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assertFalse(Object.isExtensible(obj)); |
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assertTrue(Object.isSealed(obj)); |
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// We should not be frozen, since we are still able to
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// update values.
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assertFalse(Object.isFrozen(obj)); |
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// We should not allow new properties to be added.
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try { |
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obj.foo = 42; |
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assertUnreachable(); |
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} catch(e) { |
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assertTrue(/object is not extensible/.test(e)); |
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} |
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desc = Object.getOwnPropertyDescriptor(obj, 'x'); |
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assertTrue(desc.writable); |
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assertFalse(desc.configurable); |
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assertEquals(42, desc.value); |
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desc = Object.getOwnPropertyDescriptor(obj, 'z'); |
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assertTrue(desc.writable); |
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assertFalse(desc.configurable); |
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assertEquals("foobar", desc.value); |
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// Since writable is not affected by seal we should still be able to
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// update the values.
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obj.x = "43"; |
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assertEquals(43, obj.x); |
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// Test on accessors.
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var obj2 = {}; |
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function get() { return 43; }; |
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function set() {}; |
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Object.defineProperty(obj2, 'x', { get: get, set: set, configurable: true }); |
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desc = Object.getOwnPropertyDescriptor(obj2, 'x'); |
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assertTrue(desc.configurable); |
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assertEquals(undefined, desc.value); |
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assertEquals(set, desc.set); |
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assertEquals(get, desc.get); |
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assertTrue(Object.isExtensible(obj2)); |
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assertFalse(Object.isSealed(obj2)); |
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Object.seal(obj2); |
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// Since this is an accessor property the object is now effectively both
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// sealed and frozen (accessors has no writable attribute).
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assertTrue(Object.isFrozen(obj2)); |
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assertFalse(Object.isExtensible(obj2)); |
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assertTrue(Object.isSealed(obj2)); |
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desc = Object.getOwnPropertyDescriptor(obj2, 'x'); |
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assertFalse(desc.configurable); |
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assertEquals(undefined, desc.value); |
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assertEquals(set, desc.set); |
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assertEquals(get, desc.get); |
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try { |
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obj2.foo = 42; |
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assertUnreachable(); |
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} catch(e) { |
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assertTrue(/object is not extensible/.test(e)); |
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} |
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// Test seal on arrays.
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var arr = new Array(42,43); |
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desc = Object.getOwnPropertyDescriptor(arr, '0'); |
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assertTrue(desc.configurable); |
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assertTrue(desc.writable); |
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assertEquals(42, desc.value); |
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desc = Object.getOwnPropertyDescriptor(arr, '1'); |
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assertTrue(desc.configurable); |
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assertTrue(desc.writable); |
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assertEquals(43, desc.value); |
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assertTrue(Object.isExtensible(arr)); |
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assertFalse(Object.isSealed(arr)); |
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Object.seal(arr); |
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assertTrue(Object.isSealed(arr)); |
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assertFalse(Object.isExtensible(arr)); |
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// Since the values in the array is still writable this object
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// is not frozen.
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assertFalse(Object.isFrozen(arr)); |
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desc = Object.getOwnPropertyDescriptor(arr, '0'); |
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assertFalse(desc.configurable); |
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assertTrue(desc.writable); |
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assertEquals(42, desc.value); |
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desc = Object.getOwnPropertyDescriptor(arr, '1'); |
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assertFalse(desc.configurable); |
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assertTrue(desc.writable); |
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assertEquals(43, desc.value); |
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arr[0] = 'foo'; |
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// We should be able to overwrite the existing value.
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assertEquals('foo', arr[0]); |
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// Test that isSealed returns the correct value even if configurable
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// has been set to false on all properties manually and the extensible
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// flag has also been set to false manually.
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var obj3 = { x: 42, y: 'foo' }; |
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assertFalse(Object.isFrozen(obj3)); |
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Object.defineProperty(obj3, 'x', {configurable: false, writable: true}); |
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Object.defineProperty(obj3, 'y', {configurable: false, writable: false}); |
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Object.preventExtensions(obj3); |
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assertTrue(Object.isSealed(obj3)); |
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// Make sure that an object that has a configurable property
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// is not classified as sealed.
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var obj4 = {}; |
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Object.defineProperty(obj4, 'x', {configurable: true, writable: false}); |
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Object.defineProperty(obj4, 'y', {configurable: false, writable: false}); |
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Object.preventExtensions(obj4); |
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assertFalse(Object.isSealed(obj4)); |
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@ -0,0 +1,94 @@ |
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// Copyright 2010 the V8 project authors. All rights reserved.
|
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// Redistribution and use in source and binary forms, with or without
|
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// modification, are permitted provided that the following conditions are
|
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// met:
|
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//
|
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// * Redistributions of source code must retain the above copyright
|
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// notice, this list of conditions and the following disclaimer.
|
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// * Redistributions in binary form must reproduce the above
|
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// copyright notice, this list of conditions and the following
|
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// disclaimer in the documentation and/or other materials provided
|
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// with the distribution.
|
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// * Neither the name of Google Inc. nor the names of its
|
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// contributors may be used to endorse or promote products derived
|
|||
// from this software without specific prior written permission.
|
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//
|
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Test for a broken fast-smi-loop that does not save the incremented value
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// of the loop index. If this test fails, it loops forever, and times out.
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// Flags: --nofull-compiler
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// Calling foo() spills the virtual frame.
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function foo() { |
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return; |
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} |
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function bar() { |
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var x1 = 3; |
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var x2 = 3; |
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var x3 = 3; |
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var x4 = 3; |
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var x5 = 3; |
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var x6 = 3; |
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var x7 = 3; |
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var x8 = 3; |
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var x9 = 3; |
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var x10 = 3; |
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var x11 = 3; |
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var x12 = 3; |
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var x13 = 3; |
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foo(); |
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x1 = 257; |
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x2 = 258; |
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x3 = 259; |
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x4 = 260; |
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x5 = 261; |
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x6 = 262; |
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x7 = 263; |
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x8 = 264; |
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x9 = 265; |
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x10 = 266; |
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x11 = 267; |
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x12 = 268; |
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x13 = 269; |
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// The loop variable x7 is initialized to 3,
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// and then MakeMergeable is called on the virtual frame.
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// MakeMergeable has forced the loop variable x7 to be spilled,
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// so it is marked as synced
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// The back edge then merges its virtual frame, which incorrectly
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// claims that x7 is synced, and does not save the modified
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// value.
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for (x7 = 3; x7 < 10; ++x7) { |
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foo(); |
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} |
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} |
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bar(); |
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function aliasing() { |
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var x = 3; |
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var j; |
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for (j = 7; j < 11; ++j) { |
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x = j; |
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} |
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assertEquals(10, x); |
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assertEquals(11, j); |
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} |
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aliasing(); |
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