calog/vendor/mruby/mrbgems/mruby-symbol-ext/src/symbol.c
2026-07-04 20:25:00 -05:00

78 lines
2 KiB
C
Vendored

#include <mruby.h>
#include <mruby/array.h>
#include <mruby/class.h>
#include <mruby/string.h>
#include <mruby/internal.h>
/*
* call-seq:
* Symbol.all_symbols => array
*
* Returns an array of all the symbols currently in Ruby's symbol
* table.
*
* Symbol.all_symbols.size #=> 903
* Symbol.all_symbols[1,20] #=> [:floor, :ARGV, :Binding, :symlink,
* :chown, :EOFError, :$;, :String,
* :LOCK_SH, :"setuid?", :$<,
* :default_proc, :compact, :extend,
* :Tms, :getwd, :$=, :ThreadGroup,
* :wait2, :$>]
*/
#ifdef MRB_USE_ALL_SYMBOLS
static mrb_value
mrb_sym_all_symbols(mrb_state *mrb, mrb_value self)
{
mrb_value ary = mrb_ary_new_capa(mrb, mrb->symidx);
for (mrb_sym i=1; i<=MRB_PRESYM_MAX; i++) {
mrb_ary_push(mrb, ary, mrb_symbol_value(i));
}
mrb_sym lim = mrb->symidx + 1;
for (mrb_sym i=1; i<lim; i++) {
mrb_ary_push(mrb, ary, mrb_symbol_value(i+MRB_PRESYM_MAX));
}
return ary;
}
#endif
/*
* call-seq:
* sym.length -> integer
*
* Same as `sym.to_s.length`.
*/
static mrb_value
mrb_sym_length(mrb_state *mrb, mrb_value self)
{
mrb_int len;
#ifdef MRB_UTF8_STRING
mrb_int byte_len;
const char *name = mrb_sym_name_len(mrb, mrb_symbol(self), &byte_len);
len = mrb_utf8_strlen(name, byte_len);
#else
mrb_sym_name_len(mrb, mrb_symbol(self), &len);
#endif
return mrb_fixnum_value(len);
}
static const mrb_mt_entry symbol_ext_rom_entries[] = {
MRB_MT_ENTRY(mrb_sym_length, MRB_SYM(length), MRB_ARGS_NONE()),
MRB_MT_ENTRY(mrb_sym_length, MRB_SYM(size), MRB_ARGS_NONE()),
};
void
mrb_mruby_symbol_ext_gem_init(mrb_state* mrb)
{
struct RClass *s = mrb->symbol_class;
#ifdef MRB_USE_ALL_SYMBOLS
mrb_define_class_method_id(mrb, s, MRB_SYM(all_symbols), mrb_sym_all_symbols, MRB_ARGS_NONE());
#endif
MRB_MT_INIT_ROM(mrb, s, symbol_ext_rom_entries);
}
void
mrb_mruby_symbol_ext_gem_final(mrb_state* mrb)
{
}