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Reduce string copying and allocation in the parser by only copying the scanner buffer when we need to mutate the string. Allow a nsDependentString / nsDependentSubstring to be created without being bound to anything. Move StripChar() onto nsSubstring from nsString. Bug 269853, r=jst, sr=darin.

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git-svn-id: svn://10.0.0.236/trunk@165773 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
bryner%brianryner.com
2004-11-25 07:03:20 +00:00
parent 2e6bee01c4
commit 7a461c49a4
17 changed files with 458 additions and 138 deletions
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19
mozilla/xpcom/string/src/nsTDependentSubstring.cpp
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@@ -39,6 +39,9 @@
void
nsTDependentSubstring_CharT::Rebind( const abstract_string_type& readable, PRUint32 startPos, PRUint32 length )
{
// If we currently own a buffer, release it.
Finalize();
size_type strLength = readable.GetReadableBuffer((const char_type**) &mData);
if (startPos > strLength)
@@ -53,6 +56,9 @@ nsTDependentSubstring_CharT::Rebind( const abstract_string_type& readable, PRUin
void
nsTDependentSubstring_CharT::Rebind( const substring_type& str, PRUint32 startPos, PRUint32 length )
{
// If we currently own a buffer, release it.
Finalize();
size_type strLength = str.Length();
if (startPos > strLength)
@@ -63,3 +69,16 @@ nsTDependentSubstring_CharT::Rebind( const substring_type& str, PRUint32 startPo
SetDataFlags(F_NONE);
}
void
nsTDependentSubstring_CharT::Rebind( const char_type* start, const char_type* end )
{
NS_ASSERTION(start && end, "nsTDependentSubstring must wrap a non-NULL buffer");
// If we currently own a buffer, release it.
Finalize();
mData = NS_CONST_CAST(char_type*, start);
mLength = end - start;
SetDataFlags(F_NONE);
}