js/src/jit-test/tests/for-of/semantics-09.js

Sat, 03 Jan 2015 20:18:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Sat, 03 Jan 2015 20:18:00 +0100
branch
TOR_BUG_3246
changeset 7
129ffea94266
permissions
-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0 1 // The LHS of a for-of loop is not evaluated until after the .next() method returns.
michael@0 2
michael@0 3 var s;
michael@0 4 function f() {
michael@0 5 s += 'f';
michael@0 6 return {};
michael@0 7 }
michael@0 8
michael@0 9 // Test 1: .next() throws StopIteration right away. f is never called.
michael@0 10 s = '';
michael@0 11 for (f().x of [])
michael@0 12 s += '.';
michael@0 13 assertEq(s, '');
michael@0 14
michael@0 15 // Test 2: check proper interleaving of f calls, iterator.next() calls, and the loop body.
michael@0 16 function g() {
michael@0 17 s += 'g';
michael@0 18 yield 0;
michael@0 19 s += 'g';
michael@0 20 yield 1;
michael@0 21 s += 'g';
michael@0 22 }
michael@0 23 for (f().x of g())
michael@0 24 s += '.';
michael@0 25 assertEq(s, 'gf.gf.g');

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