Bug 90740 – children method in LLINT AST Not class should return [@child]

• Status: RESOLVED
• Resolution: FIXED
• Component: JavaScriptCore

[lds]

While experimenting with the new llint in JSCore,  I noticed that the
Not class (located in offlineasm/ast.rb) may have an incorrect method:

class Not < Node
    attr_reader :child

    def initialize(codeOrigin, child)
        super(codeOrigin)
        @child = child
    end

    def children
        [@left, @right]
    end

    def mapChildren
        Not.new(codeOrigin, (yield @child))
    end

    def dump
        "(not #{child.dump})"
    end
end



Shouldn't children of this 'Not' class be

    def children
        [@child]
    end

instead, since it's  a unary operator?

[Peter Gal]

Created attachment 191731 [details]
Fix for the children method

I think this is also a problem. So this patch should fix it.

[Build Bot]

Comment on attachment 191731 [details]
Fix for the children method

Attachment 191731 [details] did not pass mac-ews (mac):
Output: http://webkit-commit-queue.appspot.com/results/17067209

New failing tests:
editing/selection/selection-modify-crash.html

[Peter Gal]

(In reply to comment #2)
> (From update of attachment 191731 [details])
> Attachment 191731 [details] did not pass mac-ews (mac):
> Output: http://webkit-commit-queue.appspot.com/results/17067209
> 
> New failing tests:
> editing/selection/selection-modify-crash.html

This patch can not cause this fail, because at this time the 'Not' node is not used at all.

[Filip Pizlo]

(In reply to comment #3)
> (In reply to comment #2)
> > (From update of attachment 191731 [details] [details])
> > Attachment 191731 [details] [details] did not pass mac-ews (mac):
> > Output: http://webkit-commit-queue.appspot.com/results/17067209
> > 
> > New failing tests:
> > editing/selection/selection-modify-crash.html
> 
> This patch can not cause this fail, because at this time the 'Not' node is not used at all.

Agreed.

[WebKit Review Bot]

Comment on attachment 191731 [details]
Fix for the children method

Clearing flags on attachment: 191731

Committed r145047: <http://trac.webkit.org/changeset/145047>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.