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comparison: js/src/jit-test/tests/debug/Object-apply-01.js
js/src/jit-test/tests/debug/Object-apply-01.js
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| -1:000000000000 | 0:e48f4e1fb997 |
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| 1 // tests calling script functions via Debugger.Object.prototype.apply/call | |
| 2 | |
| 3 load(libdir + "asserts.js"); | |
| 4 | |
| 5 var g = newGlobal(); | |
| 6 g.eval("function f() { debugger; }"); | |
| 7 var dbg = new Debugger(g); | |
| 8 | |
| 9 var hits = 0; | |
| 10 function test(usingApply) { | |
| 11 dbg.onDebuggerStatement = function (frame) { | |
| 12 var fn = frame.arguments[0]; | |
| 13 var cv = usingApply ? fn.apply(null, [9, 16]) : fn.call(null, 9, 16); | |
| 14 assertEq(Object.keys(cv).join(","), "return"); | |
| 15 assertEq(Object.getPrototypeOf(cv), Object.prototype); | |
| 16 assertEq(cv.return, 25); | |
| 17 | |
| 18 cv = usingApply ? fn.apply(null, ["hello ", "world"]) : fn.call(null, "hello ", "world"); | |
| 19 assertEq(Object.keys(cv).join(","), "return"); | |
| 20 assertEq(cv.return, "hello world"); | |
| 21 | |
| 22 // Handle more or less arguments. | |
| 23 assertEq((usingApply ? fn.apply(null, [1, 5, 100]) : fn.call(null, 1, 5, 100)).return, 6); | |
| 24 assertEq((usingApply ? fn.apply(null, []) : fn.call(null)).return, NaN); | |
| 25 assertEq((usingApply ? fn.apply() : fn.call()).return, NaN); | |
| 26 | |
| 27 // Throw if a this-value or argument is an object but not a Debugger.Object. | |
| 28 assertThrowsInstanceOf(function () { usingApply ? fn.apply({}, []) : fn.call({}); }, | |
| 29 TypeError); | |
| 30 assertThrowsInstanceOf(function () { usingApply ? fn.apply(null, [{}]) : fn.call(null, {}); }, | |
| 31 TypeError); | |
| 32 hits++; | |
| 33 }; | |
| 34 g.eval("f(function (a, b) { return a + b; });"); | |
| 35 | |
| 36 // The callee receives the right arguments even if more arguments are provided | |
| 37 // than the callee's .length. | |
| 38 dbg.onDebuggerStatement = function (frame) { | |
| 39 assertEq((usingApply ? frame.arguments[0].apply(null, ['one', 'two']) | |
| 40 : frame.arguments[0].call(null, 'one', 'two')).return, | |
| 41 2); | |
| 42 hits++; | |
| 43 }; | |
| 44 g.eval("f(function () { return arguments.length; });"); | |
| 45 | |
| 46 // Exceptions are reported as {throw:} completion values. | |
| 47 dbg.onDebuggerStatement = function (frame) { | |
| 48 var lose = frame.arguments[0]; | |
| 49 var cv = usingApply ? lose.apply(null, []) : lose.call(null); | |
| 50 assertEq(Object.keys(cv).join(","), "throw"); | |
| 51 assertEq(cv.throw, frame.callee); | |
| 52 hits++; | |
| 53 }; | |
| 54 g.eval("f(function lose() { throw f; });"); | |
| 55 } | |
| 56 | |
| 57 test(true); | |
| 58 test(false); | |
| 59 assertEq(hits, 6); |
