Bug 40128 – Regressions in debug functionality

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Nathan Lawrence]

Created attachment 57785 [details]
suggested patch

There are a few things that don't work anymore but are useful for debugging:

* JS_ZOMBIES doesn't compile anymore.

* The dumpCallFrame function in the interpreter causes a runtime error because JSValue::description does not match the current state of JSValue

* The dumpRegisters function in the interpreter is not up to date with the most recent call frame patches.

* Additionally it would be nice if JSValue::isCell checked that the value was aligned.

[WebKit Review Bot]

Attachment 57785 [details] did not pass style-queue:

Failed to run "['WebKitTools/Scripts/check-webkit-style', '--no-squash']" exit_code: 1
JavaScriptCore/runtime/JSImmediate.h:47:  CELL_MASK is incorrectly named. Don't use underscores in your identifier names.  [readability/naming] [4]
JavaScriptCore/runtime/JSImmediate.h:602:  Tests for true/false, null/non-null, and zero/non-zero should all be done without equality comparisons.  [readability/comparison_to_zero] [5]
Total errors found: 2 in 3 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Nathan Lawrence]

Created attachment 57788 [details]
fixed style issue

I did not fix the issue with having underscores in the name because it is a constant defined in Collector.h

[WebKit Review Bot]

Attachment 57788 [details] did not pass style-queue:

Failed to run "['WebKitTools/Scripts/check-webkit-style', '--no-squash']" exit_code: 1
JavaScriptCore/runtime/JSImmediate.h:47:  CELL_MASK is incorrectly named. Don't use underscores in your identifier names.  [readability/naming] [4]
Total errors found: 1 in 3 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[David Levin]

Comment on attachment 57788 [details]
fixed style issue

I won't be able to review this, but I can let you know that you'll need a ChangeLog to make it through the review.

[Nathan Lawrence]

Created attachment 57820 [details]
Changelogged

[WebKit Review Bot]

Attachment 57820 [details] did not pass style-queue:

Failed to run "['WebKitTools/Scripts/check-webkit-style', '--no-squash']" exit_code: 1
JavaScriptCore/runtime/JSImmediate.h:47:  CELL_MASK is incorrectly named. Don't use underscores in your identifier names.  [readability/naming] [4]
Total errors found: 1 in 4 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Darin Adler]

Comment on attachment 57820 [details]
Changelogged

> +#if !defined(NDEBUG)

#ifndef NDEBUG is more idiomatic for this sort of thing.

The rest of this looks fine.

[Nathan Lawrence]

Created attachment 59280 [details]
changed #if !defined to #ifndef

[WebKit Review Bot]

Attachment 59280 [details] did not pass style-queue:

Failed to run "['WebKitTools/Scripts/check-webkit-style', '--no-squash']" exit_code: 1
JavaScriptCore/runtime/JSImmediate.h:47:  CELL_MASK is incorrectly named. Don't use underscores in your identifier names.  [readability/naming] [4]
Total errors found: 1 in 4 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Geoffrey Garen]

Comment on attachment 59280 [details]
changed #if !defined to #ifndef

r=me

When might JSValue::description() want to print INVALID()? (That's the kind of information that can be useful in a ChangeLog -- an explanation of "why", in addition to "what".)

[Eric Seidel (no email)]

Comment on attachment 57820 [details]
Changelogged

Cleared Darin Adler's review+ from obsolete attachment 57820 [details] so that this bug does not appear in http://webkit.org/pending-commit.

[Steve Falkenburg]

http://trac.webkit.org/changeset/61778