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Diffstat (limited to 'include/ruby/3/core/rhash.h')
| -rw-r--r-- | include/ruby/3/core/rhash.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/ruby/3/core/rhash.h b/include/ruby/3/core/rhash.h new file mode 100644 index 0000000000..3778130141 --- /dev/null +++ b/include/ruby/3/core/rhash.h @@ -0,0 +1,62 @@ +/** \noop-*-C++-*-vi:ft=cpp + * @file + * @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. + * @warning Symbols prefixed with either `RUBY3` or `ruby3` are + * implementation details. Don't take them as canon. They could + * rapidly appear then vanish. The name (path) of this header file + * is also an implementation detail. Do not expect it to persist + * at the place it is now. Developers are free to move it anywhere + * anytime at will. + * @note To ruby-core: remember that this header can be possibly + * recursively included from extension libraries written in C++. + * Do not expect for instance `__VA_ARGS__` is always available. + * We assume C99 for ruby itself but we don't assume languages of + * extension libraries. They could be written in C++98. + * @brief Routines to manipulate struct ::RHash. + * + * Shyouhei really suffered agnish over placement of macros in this file. They + * are half-brken. The situation (as of wriring) is: + * + * - #RHASH_TBL: works. + * - #RHASH_ITER_LEV: compile-time error. + * - #RHASH_IFNONE: compile-time error. + * - #RHASH_SIZE: works. + * - #RHASH_EMPTY_P: works. + * - #RHASH_SET_IFNONE: works (why... given you cannot query). + * + * Shyouhei stopped thinking. Let them be as is. + */ +#ifndef RUBY3_RHASH_H +#define RUBY3_RHASH_H +#include "ruby/3/config.h" + +#ifdef STDC_HEADERS +# include <stddef.h> +#endif + +#include "ruby/3/dllexport.h" +#include "ruby/3/value.h" +#if !defined RUBY_EXPORT && !defined RUBY_NO_OLD_COMPATIBILITY +# include "ruby/backward.h" +#endif + +#define RHASH_TBL(h) rb_hash_tbl(h, __FILE__, __LINE__) +#define RHASH_ITER_LEV(h) rb_hash_iter_lev(h) +#define RHASH_IFNONE(h) rb_hash_ifnone(h) +#define RHASH_SIZE(h) rb_hash_size_num(h) +#define RHASH_EMPTY_P(h) (RHASH_SIZE(h) == 0) +#define RHASH_SET_IFNONE(h, ifnone) rb_hash_set_ifnone((VALUE)h, ifnone) + +struct st_table; /* in ruby/st.h */ + +RUBY3_SYMBOL_EXPORT_BEGIN() +size_t rb_hash_size_num(VALUE hash); +struct st_table *rb_hash_tbl(VALUE, const char *file, int line); +VALUE rb_hash_set_ifnone(VALUE hash, VALUE ifnone); +RUBY3_SYMBOL_EXPORT_END() + +#endif /* RUBY3_RHASH_H */ |