// Copyright 2012 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --allow-natives-syntax var accessorCallCount, setterArgument, setterValue, obj, forceDeopt; // ----------------------------------------------------------------------------- // Helpers for testing inlining of getters. function TestInlinedGetter(context, obj, expected) { forceDeopt = { deopt: 0 }; accessorCallCount = 0; %PrepareFunctionForOptimization(context); assertEquals(expected, context(obj)); assertEquals(1, accessorCallCount); assertEquals(expected, context(obj)); assertEquals(2, accessorCallCount); %OptimizeFunctionOnNextCall(context); assertEquals(expected, context(obj)); assertEquals(3, accessorCallCount); forceDeopt = { /* empty*/ }; assertEquals(expected, context(obj)); assertEquals(4, accessorCallCount); } function value_context_for_getter(obj) { return obj.getterProperty; } function test_context_for_getter(obj) { if (obj.getterProperty) { return 111; } else { return 222; } } function effect_context_for_getter(obj) { obj.getterProperty; return 5678; } function TryGetter(context, getter, obj, expected, expectException) { try { TestInlinedGetter(context, obj, expected); assertFalse(expectException); } catch (exception) { assertTrue(expectException); assertEquals(7, exception.stack.split('\n').length); } %DeoptimizeFunction(context); %ClearFunctionFeedback(context); %ClearFunctionFeedback(getter); } function TestGetterInAllContexts(getter, obj, expected, expectException) { TryGetter(value_context_for_getter, getter, obj, expected, expectException); TryGetter(test_context_for_getter, getter, obj, expected ? 111 : 222, expectException); TryGetter(effect_context_for_getter, getter, obj, 5678, expectException); } // ----------------------------------------------------------------------------- // Test getter returning something 'true'ish in all contexts. function getter1() { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; return 1234; } function ConstrG1() { } obj = Object.defineProperty(new ConstrG1(), "getterProperty", { get: getter1 }); TestGetterInAllContexts(getter1, obj, 1234, false); obj = Object.create(obj); TestGetterInAllContexts(getter1, obj, 1234, false); // ----------------------------------------------------------------------------- // Test getter returning false in all contexts. function getter2() { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; return false; } function ConstrG2() { } obj = Object.defineProperty(new ConstrG2(), "getterProperty", { get: getter2 }); TestGetterInAllContexts(getter2, obj, false, false); obj = Object.create(obj); TestGetterInAllContexts(getter2, obj, false, false); // ----------------------------------------------------------------------------- // Test getter without a return in all contexts. function getter3() { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; } function ConstrG3() { } obj = Object.defineProperty(new ConstrG3(), "getterProperty", { get: getter3 }); TestGetterInAllContexts(getter3, obj, undefined, false); obj = Object.create(obj); TestGetterInAllContexts(getter3, obj, undefined, false); // ----------------------------------------------------------------------------- // Test getter with too many arguments without a return in all contexts. function getter4(a) { assertSame(obj, this); assertEquals(undefined, a); accessorCallCount++; forceDeopt.deopt; } function ConstrG4() { } obj = Object.defineProperty(new ConstrG4(), "getterProperty", { get: getter4 }); TestGetterInAllContexts(getter4, obj, undefined, false); obj = Object.create(obj); TestGetterInAllContexts(getter4, obj, undefined, false); // ----------------------------------------------------------------------------- // Test getter with too many arguments with a return in all contexts. function getter5(a) { assertSame(obj, this); assertEquals(undefined, a); accessorCallCount++; forceDeopt.deopt; return 9876; } function ConstrG5() { } obj = Object.defineProperty(new ConstrG5(), "getterProperty", { get: getter5 }); TestGetterInAllContexts(getter5, obj, 9876, false); obj = Object.create(obj); TestGetterInAllContexts(getter5, obj, 9876, false); // ----------------------------------------------------------------------------- // Test getter which throws from optimized code. function getter6() { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; if (accessorCallCount == 4) { 123 in null; } return 13579; } function ConstrG6() { } obj = Object.defineProperty(new ConstrG6(), "getterProperty", { get: getter6 }); TestGetterInAllContexts(getter6, obj, 13579, true); obj = Object.create(obj); TestGetterInAllContexts(getter6, obj, 13579, true); // ----------------------------------------------------------------------------- // Helpers for testing inlining of setters. function TestInlinedSetter(context, obj, value, expected) { forceDeopt = { deopt: 0 }; accessorCallCount = 0; setterArgument = value; %PrepareFunctionForOptimization(context); assertEquals(expected, context(obj, value)); assertEquals(value, setterValue); assertEquals(1, accessorCallCount); assertEquals(expected, context(obj, value)); assertEquals(value, setterValue); assertEquals(2, accessorCallCount); %OptimizeFunctionOnNextCall(context); assertEquals(expected, context(obj, value)); assertEquals(value, setterValue); assertEquals(3, accessorCallCount); forceDeopt = { /* empty*/ }; assertEquals(expected, context(obj, value)); assertEquals(value, setterValue); assertEquals(4, accessorCallCount); } function value_context_for_setter(obj, value) { return obj.setterProperty = value; } function test_context_for_setter(obj, value) { if (obj.setterProperty = value) { return 333; } else { return 444; } } function effect_context_for_setter(obj, value) { obj.setterProperty = value; return 666; } function TrySetter(context, setter, obj, expectException, value, expected) { try { TestInlinedSetter(context, obj, value, expected); assertFalse(expectException); } catch (exception) { assertTrue(expectException); assertEquals(7, exception.stack.split('\n').length); } %DeoptimizeFunction(context); %ClearFunctionFeedback(context); %ClearFunctionFeedback(setter); } function TestSetterInAllContexts(setter, obj, expectException) { TrySetter(value_context_for_setter, setter, obj, expectException, 111, 111); TrySetter(test_context_for_setter, setter, obj, expectException, true, 333); TrySetter(test_context_for_setter, setter, obj, expectException, false, 444); TrySetter(effect_context_for_setter, setter, obj, expectException, 555, 666); } // ----------------------------------------------------------------------------- // Test setter without a return in all contexts. function setter1(value) { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; setterValue = value; } function ConstrS1() { } obj = Object.defineProperty(new ConstrS1(), "setterProperty", { set: setter1 }); TestSetterInAllContexts(setter1, obj, false); obj = Object.create(obj); TestSetterInAllContexts(setter1, obj, false); // ----------------------------------------------------------------------------- // Test setter returning something different than the RHS in all contexts. function setter2(value) { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; setterValue = value; return 1000000; } function ConstrS2() { } obj = Object.defineProperty(new ConstrS2(), "setterProperty", { set: setter2 }); TestSetterInAllContexts(setter2, obj, false); obj = Object.create(obj); TestSetterInAllContexts(setter2, obj, false); // ----------------------------------------------------------------------------- // Test setter with too few arguments without a return in all contexts. function setter3() { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; setterValue = setterArgument; } function ConstrS3() { } obj = Object.defineProperty(new ConstrS3(), "setterProperty", { set: setter3 }); TestSetterInAllContexts(setter3, obj, false); obj = Object.create(obj); TestSetterInAllContexts(setter3, obj, false); // ----------------------------------------------------------------------------- // Test setter with too few arguments with a return in all contexts. function setter4() { assertSame(obj, this); accessorCallCount++; forceDeopt.deopt; setterValue = setterArgument; return 2000000; } function ConstrS4() { } obj = Object.defineProperty(new ConstrS4(), "setterProperty", { set: setter4 }); TestSetterInAllContexts(setter4, obj, false); obj = Object.create(obj); TestSetterInAllContexts(setter4, obj, false); // ----------------------------------------------------------------------------- // Test setter with too many arguments without a return in all contexts. function setter5(value, foo) { assertSame(obj, this); assertEquals(undefined, foo); accessorCallCount++; forceDeopt.deopt; setterValue = value; } function ConstrS5() { } obj = Object.defineProperty(new ConstrS5(), "setterProperty", { set: setter5 }); TestSetterInAllContexts(setter5, obj, false); obj = Object.create(obj); TestSetterInAllContexts(setter5, obj, false); // ----------------------------------------------------------------------------- // Test setter with too many arguments with a return in all contexts. function setter6(value, foo) { assertSame(obj, this); assertEquals(undefined, foo); accessorCallCount++; forceDeopt.deopt; setterValue = value; return 3000000; } function ConstrS6() { } obj = Object.defineProperty(new ConstrS6(), "setterProperty", { set: setter6 }); TestSetterInAllContexts(setter6, obj, false); obj = Object.create(obj); TestSetterInAllContexts(setter6, obj, false); // ----------------------------------------------------------------------------- // Test setter which throws from optimized code. function setter7(value) { accessorCallCount++; forceDeopt.deopt; if (accessorCallCount == 4) { 123 in null; } setterValue = value; } function ConstrS7() { } obj = Object.defineProperty(new ConstrS7(), "setterProperty", { set: setter7 }); TestSetterInAllContexts(setter7, obj, true); obj = Object.create(obj); TestSetterInAllContexts(setter7, obj, true);