Comment #8 on issue 3791 by [email protected]: Weak callback not called
for all objects returned from generators.
https://code.google.com/p/v8/issues/detail?id=3791
I re-applied my change to samples/shell.cc and hope that will simplify the
test case somewhat:
$ out/x64.debug/shell --harmony-iteration --harmony-generators --trace-gc
V8 version 3.24.35.33 [sample shell]
var d = wrap(new Date());
Shell::Wrap adding 0x1163400
WeakCallback clearing 0x1163400
[30317] 10721 ms: Mark-sweep 1.0 (37.2) -> 1.0 (37.2) MB, 31.7 ms [idle
notification: contexts disposed] [GC in old space requested].
The above demonstrates that global variable d gets cleared when shell exits.
$ out/x64.debug/shell --harmony-iteration --harmony-generators --trace-gc
V8 version 3.24.35.33 [sample shell]
function* gen(lim) { for (var i = 0; i < lim; i++) yield wrap(new
Date())};
var i = 0;
for (var t of gen(2)) {i++;}
Shell::Wrap adding 0x1773400
Shell::Wrap adding 0x177f110
1
WeakCallback clearing 0x1773400
[30331] 32979 ms: Mark-sweep 1.0 (37.2) -> 1.0 (37.2) MB, 29.8 ms [idle
notification: contexts disposed] [GC in old space requested].
The above demonstrates that global variable t doesn't get cleared using the
same shell.
The diff to samples/shell.cc is attached.
Attachments:
shell-3.24.patch.txt 1.7 KB
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