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30% boost in JSON parsing speed by moving extensions to the end

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This commit is contained in:
Mathias Stearn 2010-06-04 15:01:56 -04:00
parent d7a8bfbf3a
commit 8cb6622704
1 changed files with 8 additions and 8 deletions
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16
db/json.cpp
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@ -442,20 +442,20 @@ public:
array = ch_p( '[' )[ arrayStart( self.b ) ] >> !elements >> ']';
elements = list_p(value, ch_p(',')[arrayNext( self.b )]);
value =
oid[ oidEnd( self.b ) ] |
dbref[ dbrefEnd( self.b ) ] |
bindata[ binDataEnd( self.b ) ] |
date[ dateEnd( self.b ) ] |
regex[ regexEnd( self.b ) ] |
str[ stringEnd( self.b ) ] |
singleQuoteStr[ stringEnd( self.b ) ] |
number |
integer |
object[ subobjectEnd( self.b ) ] |
array[ arrayEnd( self.b ) ] |
lexeme_d[ str_p( "true" ) ][ trueValue( self.b ) ] |
lexeme_d[ str_p( "false" ) ][ falseValue( self.b ) ] |
lexeme_d[ str_p( "null" ) ][ nullValue( self.b ) ];
lexeme_d[ str_p( "null" ) ][ nullValue( self.b ) ] |
singleQuoteStr[ stringEnd( self.b ) ] |
date[ dateEnd( self.b ) ] |
oid[ oidEnd( self.b ) ] |
bindata[ binDataEnd( self.b ) ] |
dbref[ dbrefEnd( self.b ) ] |
regex[ regexEnd( self.b ) ] |
object[ subobjectEnd( self.b ) ] ;
// NOTE lexeme_d and rules don't mix well, so we have this mess.
// NOTE We use range_p rather than cntrl_p, because the latter is locale dependent.
str = lexeme_d[ ch_p( '"' )[ chClear( self.b ) ] >>