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deps: backport f782159 from v8's upstream 

Backport f78215962bf5de9d47c022e7baa3952d0bf6d17f from V8's upstream
to speed up promise introspection.

Original commit message:

  Remove obsolete try/catch from ObjectIsPromise().

  Review URL: https://codereview.chromium.org/1367123003

  Cr-Commit-Position: refs/heads/master@{#30966}

PR-URL: https://github.com/nodejs/node/pull/3130
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
pull/3130/head
Ben Noordhuis 2015-09-30 02:13:31 +02:00
parent 9a1bc4ea7e
commit dbe48446b7
1 changed files with 2 additions and 9 deletions
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7
deps/v8/src/mirror-debugger.js vendored
View File

@ -19,16 +19,9 @@ function ToggleMirrorCache(value) {
}
// Wrapper to check whether an object is a Promise. The call may not work
// if promises are not enabled.
// TODO(yangguo): remove try-catch once promises are enabled by default.
function ObjectIsPromise(value) {
try {
return IS_SPEC_OBJECT(value) &&
!IS_UNDEFINED(%DebugGetProperty(value, builtins.$promiseStatus));
} catch (e) {
return false;
}
}