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Introduce a new non-heap-allocated type for holding nsStringBuffer* in the HTML parser.

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An innerHTML setter profile shows about 10% of the time being spent under nsHtml5HtmlAttributes::clear, mostly deleting nsStrings.
This commit is contained in:
win7-7 2019-07-05 21:58:21 +03:00 • committed by Roy Tam
commit 1be77e0f3f
34 changed files with 719 additions and 358 deletions
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12
parser/html/nsHtml5HtmlAttributes.h
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@ -31,7 +31,7 @@
#include "nsIAtom.h"
#include "nsHtml5AtomTable.h"
#include "nsString.h"
#include "nsHtml5String.h"
#include "nsNameSpaceManager.h"
#include "nsIContent.h"
#include "nsTraceRefcnt.h"
@ -64,21 +64,23 @@ class nsHtml5HtmlAttributes
int32_t mode;
int32_t length;
autoJArray<nsHtml5AttributeName*,int32_t> names;
autoJArray<nsString*,int32_t> values;
autoJArray<nsHtml5String, int32_t> values;
autoJArray<int32_t,int32_t> lines;
public:
explicit nsHtml5HtmlAttributes(int32_t mode);
~nsHtml5HtmlAttributes();
int32_t getIndex(nsHtml5AttributeName* name);
nsString* getValue(nsHtml5AttributeName* name);
nsHtml5String getValue(nsHtml5AttributeName* name);
int32_t getLength();
nsIAtom* getLocalNameNoBoundsCheck(int32_t index);
int32_t getURINoBoundsCheck(int32_t index);
nsIAtom* getPrefixNoBoundsCheck(int32_t index);
nsString* getValueNoBoundsCheck(int32_t index);
nsHtml5String getValueNoBoundsCheck(int32_t index);
nsHtml5AttributeName* getAttributeNameNoBoundsCheck(int32_t index);
int32_t getLineNoBoundsCheck(int32_t index);
void addAttribute(nsHtml5AttributeName* name, nsString* value, int32_t line);
void addAttribute(nsHtml5AttributeName* name,
nsHtml5String value,
int32_t line);
void clear(int32_t m);
void releaseValue(int32_t i);
void clearWithoutReleasingContents();