From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- .../tests/ecma_6/Generators/delegating-yield-9.js | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 js/src/tests/ecma_6/Generators/delegating-yield-9.js (limited to 'js/src/tests/ecma_6/Generators/delegating-yield-9.js') diff --git a/js/src/tests/ecma_6/Generators/delegating-yield-9.js b/js/src/tests/ecma_6/Generators/delegating-yield-9.js new file mode 100644 index 000000000..60c35b94d --- /dev/null +++ b/js/src/tests/ecma_6/Generators/delegating-yield-9.js @@ -0,0 +1,37 @@ +// Test that yield* can appear in a loop, and inside yield. + +function* countdown(n) { + while (n > 0) { + yield (yield* countdown(--n)); + } + return 34; +} + +function collect_results(iter) { + var ret = []; + var result; + do { + result = iter.next(); + ret.push(result); + } while (!result.done); + return ret; +} + +var expected = [ + // Only 34 yielded from the "yield" and the last return make it out. + // Three yields in countdown(3), two in countdown(2), and one in + // countdown(1) (called twice). + {value: 34, done: false}, + {value: 34, done: false}, + {value: 34, done: false}, + {value: 34, done: false}, + {value: 34, done: false}, + {value: 34, done: false}, + {value: 34, done: false}, + {value: 34, done: true}, // final +]; + +assertDeepEq(collect_results(countdown(3)), expected); + +if (typeof reportCompare == "function") + reportCompare(true, true); -- cgit v1.2.3