Bug 1355441 - Reuse StackNode in HTML parser TreeBuilder to avoid malloc. r=hsivonen

2017-05-01 17:25:05 -07:00
parent d7a4653ab7
commit b396a8a419
10 changed files with 486 additions and 192 deletions
--- a/parser/html/nsHtml5StreamParser.cpp
+++ b/parser/html/nsHtml5StreamParser.cpp
@@ -220,6 +220,9 @@ nsHtml5StreamParser::nsHtml5StreamParser(nsHtml5TreeOpExecutor* aExecutor,
 nsHtml5StreamParser::~nsHtml5StreamParser()
 {
  NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
+  // mSpeculations may contain StateSnapshot holding StackNodes that we
+  // want to free when the tokenizer ends, so clear the speculations first.
+  mSpeculations.Clear();
  mTokenizer->end();
 #ifdef DEBUG
  {