Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-11-02 07:05:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

fix js_IsLoopExit to better handle for-in exits, r=mrbkap

Browse Source
This commit is contained in:
shaver@mozilla.org 2008-08-20 18:50:49 -07:00
parent dd3e7fc8e5
commit c66d3db3b8
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
js/src/jstracer.cpp
View File

@ -1221,8 +1221,16 @@ js_IsLoopExit(JSContext* cx, JSScript* script, jsbytecode* pc)
pc++;
/* FALL THROUGH */
case JSOP_IFEQ:
case JSOP_IFEQX:
case JSOP_IFNE:
case JSOP_IFNEX:
/*
* Forward jumps are usually intra-branch, but for-in loops jump to the trailing enditer to
* clean up, so check for that case here.
*/
if (pc[GET_JUMP_OFFSET(pc)] == JSOP_ENDITER)
return true;
return GET_JUMP_OFFSET(pc) < 0;
default:;