Map-iterator-add-2.js

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// A Map iterator does not iterate over new entries added after it throws StopIteration.

load(libdir + "iteration.js");

var map = new Map();

var iter0 = map[Symbol.iterator](), iter1 = map[Symbol.iterator]();

assertIteratorDone(iter0, undefined);  // closes iter0

map.set(1, 2);

assertIteratorDone(iter0, undefined);  // already closed

assertIteratorNext(iter1, [1, 2]);     // was not yet closed