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v0.8.1
Revision 960b9b7a2f6e9b4f0e6b692d604c53b3fd2f5d1c authored by Jeffrey Yasskin on 28 February 2008, 04:45:36 UTC, committed by Jeffrey Yasskin on 28 February 2008, 04:45:36 UTC 
Move abc._Abstract into object by adding a new flag Py_TPFLAGS_IS_ABSTRACT,
 
which forbids constructing types that have it set. The effect is to speed

  ./python.exe -m timeit -s 'import abc' -s 'class Foo(object): __metaclass__ = abc.ABCMeta' 'Foo()'

up from 2.5us to 0.201us. This fixes issue 1762.
1 parent c105289
Raw File
parser.h 
#ifndef Py_PARSER_H
#define Py_PARSER_H
#ifdef __cplusplus
extern "C" {
#endif


/* Parser interface */

#define MAXSTACK 1500

typedef struct {
	int		 s_state;	/* State in current DFA */
	dfa		*s_dfa;		/* Current DFA */
	struct _node	*s_parent;	/* Where to add next node */
} stackentry;

typedef struct {
	stackentry	*s_top;		/* Top entry */
	stackentry	 s_base[MAXSTACK];/* Array of stack entries */
					/* NB The stack grows down */
} stack;

typedef struct {
	stack	 	p_stack;	/* Stack of parser states */
	grammar		*p_grammar;	/* Grammar to use */
	node		*p_tree;	/* Top of parse tree */
#ifdef PY_PARSER_REQUIRES_FUTURE_KEYWORD
	unsigned long	p_flags;	/* see co_flags in Include/code.h */
#endif
} parser_state;

parser_state *PyParser_New(grammar *g, int start);
void PyParser_Delete(parser_state *ps);
int PyParser_AddToken(parser_state *ps, int type, char *str, int lineno, int col_offset,
                      int *expected_ret);
void PyGrammar_AddAccelerators(grammar *g);

#ifdef __cplusplus
}
#endif
#endif /* !Py_PARSER_H */
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