diff options
Diffstat (limited to 'internal/compar.h')
-rw-r--r-- | internal/compar.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/internal/compar.h b/internal/compar.h new file mode 100644 index 0000000000..36c5e9c782 --- /dev/null +++ b/internal/compar.h @@ -0,0 +1,54 @@ +#ifndef INTERNAL_COMPAR_H /* -*- C -*- */ +#define INTERNAL_COMPAR_H +/** + * @file + * @brief Internal header for Comparable. + * @author \@shyouhei + * @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. + */ + +#define STRING_P(s) (RB_TYPE_P((s), T_STRING) && CLASS_OF(s) == rb_cString) + +#ifdef RUBY_INTEGER_UNIFICATION +# define rb_cFixnum rb_cInteger +# define rb_cBignum rb_cInteger +#endif + +enum { + cmp_opt_Fixnum, + 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, Fixnum)) ? \ + (((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 */ |