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class.c: refactoring mrb_get_args(); ref #5596
This commit is contained in:
Yukihiro "Matz" Matsumoto
+57
-60
@@ -890,68 +890,10 @@ mrb_block_given_p(mrb_state *mrb)
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return !mrb_nil_p(b);
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}
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static mrb_int mrb_get_args_v(mrb_state *mrb, mrb_args_format format, void** ptr, va_list ap);
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/*
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retrieve arguments from mrb_state.
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mrb_get_args(mrb, format, ...)
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returns number of arguments parsed.
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format specifiers:
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string mruby type C type note
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----------------------------------------------------------------------------------------------
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o: Object [mrb_value]
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C: Class/Module [mrb_value] when ! follows, the value may be nil
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S: String [mrb_value] when ! follows, the value may be nil
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A: Array [mrb_value] when ! follows, the value may be nil
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H: Hash [mrb_value] when ! follows, the value may be nil
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s: String [const char*,mrb_int] Receive two arguments; s! gives (NULL,0) for nil
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z: String [const char*] NUL terminated string; z! gives NULL for nil
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a: Array [const mrb_value*,mrb_int] Receive two arguments; a! gives (NULL,0) for nil
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c: Class/Module [strcut RClass*] c! gives NULL for nil
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f: Integer/Float [mrb_float]
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i: Integer/Float [mrb_int]
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b: boolean [mrb_bool]
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n: String/Symbol [mrb_sym]
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d: data [void*,mrb_data_type const] 2nd argument will be used to check data type so it won't be modified; when ! follows, the value may be nil
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&: block [mrb_value] &! raises exception if no block given
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*: rest argument [const mrb_value*,mrb_int] The rest of the arguments as an array; *! avoid copy of the stack
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|: optional Following arguments are optional
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?: optional given [mrb_bool] true if preceding argument (optional) is given
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':': keyword args [mrb_kwargs const] Get keyword arguments
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format modifiers:
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string note
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----------------------------------------------------------------------------------------------
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!: Switch to the alternate mode; The behaviour changes depending on the specifier
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+: Request a not frozen object; However, except nil value
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*/
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MRB_API mrb_int
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mrb_get_args(mrb_state *mrb, mrb_args_format format, ...)
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{
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va_list ap;
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va_start(ap, format);
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mrb_int rc = mrb_get_args_v(mrb, format, NULL, ap);
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va_end(ap);
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return rc;
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}
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MRB_API mrb_int
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mrb_get_args_a(mrb_state *mrb, mrb_args_format format, void** args)
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{
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va_list ap;
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mrb_int rc = mrb_get_args_v(mrb, format, args, ap);
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return rc;
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}
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#define GET_ARG(_type) (ptr ? ((_type)(*ptr++)) : va_arg(ap, _type))
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MRB_API mrb_int
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mrb_get_args_v(mrb_state *mrb, mrb_args_format format, void** ptr, va_list ap)
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static mrb_int
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get_args_v(mrb_state *mrb, mrb_args_format format, void** ptr, va_list ap)
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{
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const char *fmt = format;
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char c;
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@@ -1363,6 +1305,61 @@ finish:
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return i;
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}
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/*
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retrieve arguments from mrb_state.
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mrb_get_args(mrb, format, ...)
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returns number of arguments parsed.
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format specifiers:
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string mruby type C type note
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----------------------------------------------------------------------------------------------
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o: Object [mrb_value]
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C: Class/Module [mrb_value] when ! follows, the value may be nil
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S: String [mrb_value] when ! follows, the value may be nil
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A: Array [mrb_value] when ! follows, the value may be nil
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H: Hash [mrb_value] when ! follows, the value may be nil
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s: String [const char*,mrb_int] Receive two arguments; s! gives (NULL,0) for nil
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z: String [const char*] NUL terminated string; z! gives NULL for nil
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a: Array [const mrb_value*,mrb_int] Receive two arguments; a! gives (NULL,0) for nil
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c: Class/Module [strcut RClass*] c! gives NULL for nil
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f: Integer/Float [mrb_float]
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i: Integer/Float [mrb_int]
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b: boolean [mrb_bool]
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n: String/Symbol [mrb_sym]
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d: data [void*,mrb_data_type const] 2nd argument will be used to check data type so it won't be modified; when ! follows, the value may be nil
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&: block [mrb_value] &! raises exception if no block given
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*: rest argument [const mrb_value*,mrb_int] The rest of the arguments as an array; *! avoid copy of the stack
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|: optional Following arguments are optional
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?: optional given [mrb_bool] true if preceding argument (optional) is given
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':': keyword args [mrb_kwargs const] Get keyword arguments
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format modifiers:
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string note
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----------------------------------------------------------------------------------------------
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!: Switch to the alternate mode; The behaviour changes depending on the specifier
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+: Request a not frozen object; However, except nil value
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*/
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MRB_API mrb_int
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mrb_get_args(mrb_state *mrb, mrb_args_format format, ...)
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{
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va_list ap;
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va_start(ap, format);
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mrb_int rc = get_args_v(mrb, format, NULL, ap);
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va_end(ap);
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return rc;
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}
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MRB_API mrb_int
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mrb_get_args_a(mrb_state *mrb, mrb_args_format format, void** args)
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{
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va_list ap;
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return get_args_v(mrb, format, args, ap);
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}
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static struct RClass*
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boot_defclass(mrb_state *mrb, struct RClass *super)
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{
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