<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>183987</bug_id>
          
          <creation_ts>2018-03-24 14:46:42 -0700</creation_ts>
          <short_desc>[JSC] Remove repeated iteration of ElementNode</short_desc>
          <delta_ts>2018-03-27 01:50:25 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>New Bugs</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Yusuke Suzuki">ysuzuki</reporter>
          <assigned_to name="Yusuke Suzuki">ysuzuki</assigned_to>
          <cc>ews-watchlist</cc>
    
    <cc>keith_miller</cc>
    
    <cc>mark.lam</cc>
    
    <cc>msaboff</cc>
    
    <cc>saam</cc>
    
    <cc>webkit-bug-importer</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1409143</commentid>
    <comment_count>0</comment_count>
    <who name="Yusuke Suzuki">ysuzuki</who>
    <bug_when>2018-03-24 14:46:42 -0700</bug_when>
    <thetext>[JSC] Remove repeated iteration of ElementNode</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1409145</commentid>
    <comment_count>1</comment_count>
      <attachid>336486</attachid>
    <who name="Yusuke Suzuki">ysuzuki</who>
    <bug_when>2018-03-24 14:52:59 -0700</bug_when>
    <thetext>Created attachment 336486
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1409437</commentid>
    <comment_count>2</comment_count>
      <attachid>336486</attachid>
    <who name="Keith Miller">keith_miller</who>
    <bug_when>2018-03-26 16:19:14 -0700</bug_when>
    <thetext>Comment on attachment 336486
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=336486&amp;action=review

r=me with some nits.

&gt; Source/JavaScriptCore/bytecompiler/NodesCodegen.cpp:398
&gt; +    auto newArray = [&amp;generator] (RegisterID* dst, ElementNode* elements, unsigned length, bool hadVariableExpression) {

Nit: Why not just capture the args you&apos;re using?

&gt; Source/JavaScriptCore/bytecompiler/NodesCodegen.cpp:418
&gt; +                if (!!node-&gt;elision()) {

Nit: You don&apos;t need the !!.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1409495</commentid>
    <comment_count>3</comment_count>
      <attachid>336486</attachid>
    <who name="Yusuke Suzuki">ysuzuki</who>
    <bug_when>2018-03-27 01:46:29 -0700</bug_when>
    <thetext>Comment on attachment 336486
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=336486&amp;action=review

Thank you!

&gt;&gt; Source/JavaScriptCore/bytecompiler/NodesCodegen.cpp:398
&gt;&gt; +    auto newArray = [&amp;generator] (RegisterID* dst, ElementNode* elements, unsigned length, bool hadVariableExpression) {
&gt; 
&gt; Nit: Why not just capture the args you&apos;re using?

I want to separate the responsibility of ArrayNode::emitBytecode and this newArray function.
This newArray does not recognize how `hadVariableExpression` and `length` is computed. Passing it as an argument explicitly makes this separation clear.

&gt;&gt; Source/JavaScriptCore/bytecompiler/NodesCodegen.cpp:418
&gt;&gt; +                if (!!node-&gt;elision()) {
&gt; 
&gt; Nit: You don&apos;t need the !!.

Dropped.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1409496</commentid>
    <comment_count>4</comment_count>
    <who name="Yusuke Suzuki">ysuzuki</who>
    <bug_when>2018-03-27 01:49:46 -0700</bug_when>
    <thetext>Committed r229993: &lt;https://trac.webkit.org/changeset/229993&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1409497</commentid>
    <comment_count>5</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2018-03-27 01:50:25 -0700</bug_when>
    <thetext>&lt;rdar://problem/38903107&gt;</thetext>
  </long_desc>
      
          <attachment
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            <attachid>336486</attachid>
            <date>2018-03-24 14:52:59 -0700</date>
            <delta_ts>2018-03-26 16:19:14 -0700</delta_ts>
            <desc>Patch</desc>
            <filename>bug-183987-20180325065258.patch</filename>
            <type>text/plain</type>
            <size>8752</size>
            <attacher name="Yusuke Suzuki">ysuzuki</attacher>
            
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<flag name="review"
          id="355023"
          type_id="1"
          status="+"
          setter="keith_miller"
    />
          </attachment>
      

    </bug>

</bugzilla>