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Fix #85: Remove unnecessary conditions from the 'traverse children' a… #123

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Apr 12, 2017
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Fix #85: Remove unnecessary conditions from the 'traverse children' a… #123

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7 changes: 4 additions & 3 deletions sections/traversal.include
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Original file line number Diff line number Diff line change
Expand Up @@ -176,8 +176,10 @@ interface TreeWalker {

<li><p>Set <var>node</var> to <var>node</var>'s <a>first child</a> if <var>type</var> is first, and <var>node</var>'s <a>last child</a> if <var>type</var> is last.

<li><p>If <var>node</var> is null, return null.

<li>
<p><dfn>Main</dfn>: While <var>node</var> is not null, run these substeps:
<p><dfn>Main</dfn>: Repeat these substeps:

<ol>
<li><p><a href="#node-filter">Filter</a> <var>node</var> and let <var>result</var> be the return value.
Expand All @@ -194,7 +196,7 @@ interface TreeWalker {
</ol>

<li>
<p>While <var>node</var> is not null, run these subsubsteps:
<p>Repeat these substeps:

<ol>
<li><p>Let <var>sibling</var> be <var>node</var>'s <a href="#tree-next-sibling">next sibling</a> if <var>type</var> is first, and <var>node</var>'s <a href="#tree-previous-sibling">previous sibling</a> if <var>type</var> is last.
Expand All @@ -208,7 +210,6 @@ interface TreeWalker {
<li><p>Otherwise, set <var>node</var> to <var>parent</var>.
</ol>
</ol>
<li><p>Return null.
</ol>

<p>The <dfn><code>firstChild()</code></dfn> method must <a>traverse children</a> of type first.
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