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#ifndef INTERNAL_COMPAR_H /*-*-C-*-vi:se ft=c:*/
#define INTERNAL_COMPAR_H
/**
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
* @brief Internal header for Comparable.
*/
#include "internal/vm.h" /* for rb_method_basic_definition_p */
#define STRING_P(s) (RB_TYPE_P((s), T_STRING) && CLASS_OF(s) == rb_cString)
enum {
cmp_opt_Integer,
cmp_opt_String,
cmp_opt_Float,
cmp_optimizable_count
};
struct cmp_opt_data {
unsigned int opt_methods;
unsigned int opt_inited;
};
#define NEW_CMP_OPT_MEMO(type, value) \
NEW_PARTIAL_MEMO_FOR(type, value, cmp_opt)
#define CMP_OPTIMIZABLE_BIT(type) (1U << TOKEN_PASTE(cmp_opt_,type))
#define CMP_OPTIMIZABLE(data, type) \
(((data).opt_inited & CMP_OPTIMIZABLE_BIT(type)) ? \
((data).opt_methods & CMP_OPTIMIZABLE_BIT(type)) : \
(((data).opt_inited |= CMP_OPTIMIZABLE_BIT(type)), \
rb_method_basic_definition_p(TOKEN_PASTE(rb_c,type), id_cmp) && \
((data).opt_methods |= CMP_OPTIMIZABLE_BIT(type))))
#define OPTIMIZED_CMP(a, b, data) \
((FIXNUM_P(a) && FIXNUM_P(b) && CMP_OPTIMIZABLE(data, Integer)) ? \
(((long)a > (long)b) ? 1 : ((long)a < (long)b) ? -1 : 0) : \
(STRING_P(a) && STRING_P(b) && CMP_OPTIMIZABLE(data, String)) ? \
rb_str_cmp(a, b) : \
(RB_FLOAT_TYPE_P(a) && RB_FLOAT_TYPE_P(b) && CMP_OPTIMIZABLE(data, Float)) ? \
rb_float_cmp(a, b) : \
rb_cmpint(rb_funcallv(a, id_cmp, 1, &b), a, b))
/* compar.c */
VALUE rb_invcmp(VALUE, VALUE);
#endif /* INTERNAL_COMPAR_H */
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