101 lines
3.1 KiB
HTML
101 lines
3.1 KiB
HTML
<p>
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This page tests cached access to getters and setters. If the test passes,
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you'll see a series of PASS messages below.
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</p>
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<pre id="console"></pre>
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<script>
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(function() {
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if (window.testRunner)
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testRunner.dumpAsText();
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function log(s)
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{
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if (this.document)
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document.getElementById("console").appendChild(document.createTextNode(s + "\n"));
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else
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print(s + "\n");
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}
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function shouldBe(a, aDescription, b)
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{
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if (a === b) {
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log("PASS: " + aDescription + " should be " + b + " and is.");
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} else {
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log("FAIL: " + aDescription + " should be " + b + " but instead is " + a + ".");
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}
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}
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function testGetter(o) {
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var result;
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for (var i = 0; i < 10; i++)
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result = o.length;
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return result;
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}
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function testProtoGetter(o) {
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var result;
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for (var i = 0; i < 10; i++)
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result = o.length;
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return result;
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}
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function testProtoChainGetter(o) {
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var result;
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for (var i = 0; i < 10; i++)
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result = o.length;
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return result;
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}
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function getterTest(str, expected) {
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shouldBe(eval(str), str, expected);
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}
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var testFunction3 = function(a,b,c){}
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var testFunction5 = function(a,b,c,d,e){}
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getterTest("testGetter({__proto__: {count: 'FAIL'}, get length(){ return this.count; }, count: 7})", 7);
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getterTest("testGetter(testFunction3)", 3);
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getterTest("testGetter(testFunction5)", 5);
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getterTest("testProtoGetter({__proto__: {count: 'FAIL', get length(){ return this.count; }}, count: 7})", 7);
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getterTest("testProtoGetter({__proto__: testFunction3, count: 'FAIL'})", 3);
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getterTest("testProtoGetter({__proto__: testFunction5, count: 'FAIL'})", 5);
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getterTest("testProtoChainGetter({__proto__: {__proto__: {count: 'FAIL', get length(){ return this.count; }}}, count: 7})", 7);
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getterTest("testProtoChainGetter({__proto__: {__proto__: testFunction3}, count: 'FAIL'})", 3);
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getterTest("testProtoChainGetter({__proto__: {__proto__: testFunction5}, count: 'FAIL'})", 5);
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function testCustomGetter(o) {
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for (var i = 0; i < 10; i++)
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o.source;
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}
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var r=/a/;
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testCustomGetter(r);
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var r2=/b/;
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r2.__proto__ = r;
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testCustomGetter(r2);
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var r3=/c/;
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r3.__proto__ = r2;
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testCustomGetter(r3);
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function shouldThrow(func, errorMessage) {
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var errorThrown = false;
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var error = null;
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try {
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func();
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} catch (e) {
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errorThrown = true;
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error = e;
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}
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if (!errorThrown)
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throw new Error('not thrown');
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if (String(error) !== errorMessage)
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throw new Error(`bad error: ${String(error)}`);
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}
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shouldThrow(function () {
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testCustomGetter({__proto__: r});
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}, "TypeError: The RegExp.prototype.source getter can only be called on a RegExp object");
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shouldThrow(function () {
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testCustomGetter({__proto__: {__proto__: r}});
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}, "TypeError: The RegExp.prototype.source getter can only be called on a RegExp object");
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})();
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</script>
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