diff options
Diffstat (limited to 'js/src/tests/ecma_6/Statements')
3 files changed, 215 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Statements/for-inof-finally.js b/js/src/tests/ecma_6/Statements/for-inof-finally.js new file mode 100644 index 000000000..e1f0c77e1 --- /dev/null +++ b/js/src/tests/ecma_6/Statements/for-inof-finally.js @@ -0,0 +1,78 @@ +var BUGNUMBER = 1332881; +var summary = + "Leaving for-in and try should handle stack value in correct order"; + +print(BUGNUMBER + ": " + summary); + +var called = 0; +function reset() { + called = 0; +} +var obj = { + [Symbol.iterator]() { + return { + next() { + return { value: 10, done: false }; + }, + return() { + called++; + return {}; + } + }; + } +}; + +var a = (function () { + for (var x in [0]) { + try {} finally { + return 11; + } + } +})(); +assertEq(a, 11); + +reset(); +var b = (function () { + for (var x of obj) { + try {} finally { + return 12; + } + } +})(); +assertEq(called, 1); +assertEq(b, 12); + +reset(); +var c = (function () { + for (var x in [0]) { + for (var y of obj) { + try {} finally { + return 13; + } + } + } +})(); +assertEq(called, 1); +assertEq(c, 13); + +reset(); +var d = (function () { + for (var x in [0]) { + for (var y of obj) { + try {} finally { + for (var z in [0]) { + for (var w of obj) { + try {} finally { + return 14; + } + } + } + } + } + } +})(); +assertEq(called, 2); +assertEq(d, 14); + +if (typeof reportCompare === "function") + reportCompare(true, true); diff --git a/js/src/tests/ecma_6/Statements/for-of-iterator-close-throw.js b/js/src/tests/ecma_6/Statements/for-of-iterator-close-throw.js new file mode 100644 index 000000000..1974e416b --- /dev/null +++ b/js/src/tests/ecma_6/Statements/for-of-iterator-close-throw.js @@ -0,0 +1,35 @@ +function test() { + var returnCalled = 0; + var returnCalledExpected = 0; + var catchEntered = 0; + var finallyEntered = 0; + var finallyEnteredExpected = 0; + var iterable = {}; + iterable[Symbol.iterator] = makeIterator({ + ret: function() { + returnCalled++; + throw 42; + } + }); + + // inner try cannot catch IteratorClose throwing + assertThrowsValue(function() { + for (var x of iterable) { + try { + return; + } catch (e) { + catchEntered++; + } finally { + finallyEntered++; + } + } + }, 42); + assertEq(returnCalled, ++returnCalledExpected); + assertEq(catchEntered, 0); + assertEq(finallyEntered, ++finallyEnteredExpected); +} + +test(); + +if (typeof reportCompare === "function") + reportCompare(0, 0); diff --git a/js/src/tests/ecma_6/Statements/for-of-iterator-close.js b/js/src/tests/ecma_6/Statements/for-of-iterator-close.js new file mode 100644 index 000000000..b28895d8f --- /dev/null +++ b/js/src/tests/ecma_6/Statements/for-of-iterator-close.js @@ -0,0 +1,102 @@ +// Tests that IteratorReturn is called when a for-of loop has an abrupt +// completion value during non-iterator code. + +function test() { + var returnCalled = 0; + var returnCalledExpected = 0; + var iterable = {}; + iterable[Symbol.iterator] = makeIterator({ + ret: function() { + returnCalled++; + return {}; + } + }); + + // break calls iter.return + for (var x of iterable) + break; + assertEq(returnCalled, ++returnCalledExpected); + + // throw in body calls iter.return + assertThrowsValue(function() { + for (var x of iterable) + throw "in body"; + }, "in body"); + assertEq(returnCalled, ++returnCalledExpected); + + // throw in lhs ref calls iter.return + function throwlhs() { + throw "in lhs"; + } + assertThrowsValue(function() { + for ((throwlhs()) of iterable) + continue; + }, "in lhs"); + assertEq(returnCalled, ++returnCalledExpected); + + // throw in iter.return doesn't re-call iter.return + iterable[Symbol.iterator] = makeIterator({ + ret: function() { + returnCalled++; + throw "in iter.return"; + } + }); + assertThrowsValue(function() { + for (var x of iterable) + break; + }, "in iter.return"); + assertEq(returnCalled, ++returnCalledExpected); + + // throw in iter.next doesn't call IteratorClose + iterable[Symbol.iterator] = makeIterator({ + next: function() { + throw "in next"; + } + }); + assertThrowsValue(function() { + for (var x of iterable) + break; + }, "in next"); + assertEq(returnCalled, returnCalledExpected); + + // "return" must return an Object. + iterable[Symbol.iterator] = makeIterator({ + ret: function() { + returnCalled++; + return 42; + } + }); + assertThrowsInstanceOf(function() { + for (var x of iterable) + break; + }, TypeError); + assertEq(returnCalled, ++returnCalledExpected); + + // continue doesn't call iter.return for the loop it's continuing + var i = 0; + iterable[Symbol.iterator] = makeIterator({ + next: function() { + return { done: i++ > 5 }; + }, + ret: function() { + returnCalled++; + return {}; + } + }); + for (var x of iterable) + continue; + assertEq(returnCalled, returnCalledExpected); + + // continue does call iter.return for loops it skips + i = 0; + L: do { + for (var x of iterable) + continue L; + } while (false); + assertEq(returnCalled, ++returnCalledExpected); +} + +test(); + +if (typeof reportCompare === "function") + reportCompare(0, 0); |