michael@0: // A Map iterator does not visit entries removed by clear().
michael@0: 
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var m = Map();
michael@0: var it = m[std_iterator]();
michael@0: m.clear();
michael@0: assertIteratorDone(it, undefined);
michael@0: 
michael@0: m = Map([["a", 1], ["b", 2], ["c", 3], ["d", 4]]);
michael@0: it = m[std_iterator]();
michael@0: assertIteratorNext(it, ["a", 1]);
michael@0: m.clear();
michael@0: assertIteratorDone(it, undefined);
michael@0: 
michael@0: var log = "";
michael@0: m = Map([["a", 1], ["b", 2], ["c", 3], ["d", 4]]);
michael@0: for (var [k, v] of m) {
michael@0:     log += k + v;
michael@0:     if (k == "b")
michael@0:         m.clear();
michael@0: }
michael@0: assertEq(log, "a1b2");