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A comment for typed data in rb_check_type [ci skip]

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This commit is contained in:
Nobuyoshi Nakada 2021-08-14 10:14:51 +09:00
parent d58620e0a1
commit edd27e120e
Notes: git 2021-08-14 23:12:27 +09:00
2 changed files with 9 additions and 3 deletions
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8
error.c
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@ -1007,6 +1007,14 @@ rb_check_type(VALUE x, int t)
xt = TYPE(x);
if (xt != t || (xt == T_DATA && RTYPEDDATA_P(x))) {
/*
* Typed data is not simple `T_DATA`, but in a sense an
* extension of `struct RVALUE`, which are incompatible with
* each other except when inherited.
*
* So it is not enough to just check `T_DATA`, it must be
* identified by its `type` using `Check_TypedStruct` instead.
*/
unexpected_type(x, xt, t);
}
}

4
include/ruby/internal/value_type.h
View file

@ -340,9 +340,7 @@ Check_Type(VALUE v, enum ruby_value_type t)
goto unexpected_type;
}
else if (t == RUBY_T_DATA && rbimpl_rtypeddata_p(v)) {
/* The intention itself is not necessarily clear to me, but at least it
* is intentional to rule out typed data here. See commit
* a7c32bf81d3391cfb78cfda278f469717d0fb794. */
/* Typed data is not simple `T_DATA`, see `rb_check_type` */
goto unexpected_type;
}
else {