| // Copyright 2008 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. |
| |
| // Test that we can create object literals of various sizes. |
| |
| // Flags: --allow-natives-syntax |
| |
| function testLiteral(size) { |
| |
| // Build object-literal string. |
| var literal = "var o = { "; |
| |
| for (var i = 0; i < size; i++) { |
| if (i > 0) literal += ","; |
| literal += ("a" + i + ":" + i); |
| } |
| literal += "}"; |
| |
| // Create the object literal. |
| eval(literal); |
| |
| // Check that the properties have the expected values. |
| for (var i = 0; i < size; i++) { |
| assertEquals(i, o["a"+i]); |
| } |
| } |
| function testElementLiteral(size) { |
| |
| // Build object-literal string. |
| var literal = "var o = { "; |
| |
| for (var i = 0; i < size; i++) { |
| if (i > 0) literal += ","; |
| literal += (i + ":'" + i+"'"); |
| } |
| literal += "}"; |
| |
| // Create the object literal. |
| eval(literal); |
| |
| // Check that the properties have the expected values. |
| for (var i = 0; i < size; i++) { |
| assertEquals(i+"", o[i]); |
| } |
| } |
| |
| // The sizes to test. |
| var sizes = [0, 1, 2, 100, 200, 400, 1000]; |
| |
| // Run the test. |
| for (var i = 0; i < sizes.length; i++) { |
| testLiteral(sizes[i]); |
| testElementLiteral(sizes[i]); |
| } |
| |
| |
| // Larg Object dictionary mode literal. |
| |
| |
| function TestSlowLiteralOptimized() { |
| function f() { |
| return {__proto__:null, bar:"barValue"}; |
| } |
| let obj = f(); |
| assertFalse(%HasFastProperties(obj)); |
| assertEquals(Object.getPrototypeOf(obj), null); |
| assertEquals(["bar"], Object.keys(obj)); |
| assertEquals("barValue", obj.bar); |
| obj.bar = "barValue2"; |
| assertEquals("barValue2", obj.bar); |
| |
| %OptimizeFunctionOnNextCall(f); |
| obj = f(); |
| assertFalse(%HasFastProperties(obj)); |
| assertEquals(Object.getPrototypeOf(obj), null); |
| assertEquals(["bar"], Object.keys(obj)); |
| assertEquals("barValue", obj.bar); |
| obj.bar = "barValue2"; |
| assertEquals("barValue2", obj.bar); |
| }; |
| TestSlowLiteralOptimized(); |
| TestSlowLiteralOptimized(); |
| |
| (function TestLargeObjectDictionaryLiteral() { |
| // Create potential large-space object literal. |
| let properties = []; |
| // Constant chosen so the dictionary properties store lies in large object |
| // space. |
| const max = 0x1ef3e / 3; |
| for (let i = 0; i < max; i++) { |
| properties.push("p"+i); |
| } |
| let source = "return { __proto__:null, " + properties.join(":'',") + ":''}" |
| let createObject = new Function(source); |
| let object = createObject(); |
| %HeapObjectVerify(object); |
| assertFalse(%HasFastProperties(object)); |
| assertEquals(Object.getPrototypeOf(object ), null); |
| let keys = Object.keys(object); |
| // modify original object |
| object['new_property'] = {}; |
| object[1] = 12; |
| %HeapObjectVerify(object); |
| |
| let object2 = createObject(); |
| %HeapObjectVerify(object2); |
| assertFalse(object2 === object); |
| assertFalse(%HasFastProperties(object2)); |
| assertEquals(Object.getPrototypeOf(object2), null); |
| assertEquals(keys, Object.keys(object2)); |
| })(); |
| |
| // Test Object literal with large-object elements. |
| let indices = []; |
| const max = 0x1ef3e + 100; |
| for (let i = 0; i < max; i++) { |
| indices.push(""+i); |
| } |
| let source = "return {" + indices.join(":0,") + ":0};" |
| let largeElementsLiteral = new Function(source); |
| |
| function TestLargeObjectElements() { |
| // Corresponds to FixedArray::kMaxRegularLength. |
| let object = largeElementsLiteral(); |
| %HeapObjectVerify(object); |
| for (let i = 0; i < max; i++) { |
| assertEquals(0, object[i]); |
| } |
| object[0] = 0xFF; |
| assertEquals(0xFF, object[0]); |
| object[1] = 1.23; |
| assertEquals(1.23, object[1]); |
| %HeapObjectVerify(object); |
| } |
| |
| TestLargeObjectElements(); |
| TestLargeObjectElements(); |
| TestLargeObjectElements(); |
| %OptimizeFunctionOnNextCall(TestLargeObjectElements); |
| TestLargeObjectElements(); |