js/src/jit-test/tests/collections/Map-set-undefined.js

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 // Setting a Map key to undefined, or a missing argument, isn't the same as deleting it.
michael@0 2
michael@0 3 var m = new Map;
michael@0 4 m.set(42, undefined);
michael@0 5 assertEq(m.has(42), true);
michael@0 6 assertEq(m.get(42), undefined);
michael@0 7
michael@0 8 m.set(42, "wrong");
michael@0 9 m.set(42);
michael@0 10 assertEq(m.has(42), true);
michael@0 11 assertEq(m.get(42), undefined);
michael@0 12
michael@0 13 m.set();
michael@0 14 assertEq(m.has(undefined), true);
michael@0 15 assertEq(m.get(undefined), undefined);

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