[Webkit-unassigned] [Bug 18991] New: SquirrelFish: Major codegen issue in a.b=expr, a[b]=expr
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sat May 10 21:15:11 PDT 2008
http://bugs.webkit.org/show_bug.cgi?id=18991
Summary: SquirrelFish: Major codegen issue in a.b=expr, a[b]=expr
Product: WebKit
Version: 526+ (Nightly build)
Platform: All
OS/Version: All
Status: NEW
Keywords: SquirrelFish, SquirrelFishBlocker
Severity: Blocker
Priority: P1
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: oliver at apple.com
CC: mjs at apple.com, sam at webkit.org, ggaren at apple.com,
cwzwarich at uwaterloo.ca
Cameron and I have isolated a number of the probable causes for gmail and ebay
bustage, and they are expressions like (assume var a, b;):
* a=a.b=c -- should evaluate as a.b=c; a=a.b; actually evals as
a=c;a.b=a;a=a.b; (ditto for a[b])
* a.b=(a="wiffle") -- should eval as base=a;a="wiffle";base.b=a; actually
evaluates as a=wiffle;a.b=a;
This makes me cry.
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