michael@0: // Clearing a Map removes any strong references to its keys and values.
michael@0: 
michael@0: load(libdir + "referencesVia.js");
michael@0: 
michael@0: var m = Map();
michael@0: var k = {}, v = {};
michael@0: m.set(k, v);
michael@0: assertEq(referencesVia(m, "key", k), true);
michael@0: assertEq(referencesVia(m, "value", v), true);
michael@0: m.clear();
michael@0: if (typeof findReferences == 'function') {
michael@0:     assertEq(referencesVia(m, "key", k), false);
michael@0:     assertEq(referencesVia(m, "value", v), false);
michael@0: }