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[ruby/stringio] Extract internal part as the function

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`str_chilled_p`
(https://github.com/ruby/stringio/pull/136)

https://github.com/ruby/stringio/commit/3c52ddc4c8
This commit is contained in:
Nobuyoshi Nakada 2025-06-05 17:06:46 +09:00 committed by git
parent 256440a827
commit 8906d55cb5
1 changed files with 14 additions and 8 deletions
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22
ext/stringio/stringio.c
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@ -36,6 +36,19 @@ STRINGIO_VERSION = "3.1.8.dev";
# define rb_class_new_instance_kw(argc, argv, klass, kw_splat) rb_class_new_instance(argc, argv, klass)
#endif
static inline bool
str_chilled_p(VALUE str)
{
#if (RUBY_API_VERSION_MAJOR == 3 && RUBY_API_VERSION_MINOR >= 4) || RUBY_API_VERSION_MAJOR >= 4
// Do not attempt to modify chilled strings on Ruby 3.4+
// RUBY_FL_USER2 == STR_CHILLED_LITERAL
// RUBY_FL_USER3 == STR_CHILLED_SYMBOL_TO_S
return FL_TEST_RAW(str, RUBY_FL_USER2 | RUBY_FL_USER3);
#else
return false;
#endif
}
#ifndef HAVE_TYPE_RB_IO_MODE_T
typedef int rb_io_mode_t;
#endif
@ -1865,14 +1878,7 @@ strio_set_encoding(int argc, VALUE *argv, VALUE self)
}
}
ptr->enc = enc;
if (!NIL_P(ptr->string) && WRITABLE(self)
#if (RUBY_API_VERSION_MAJOR == 3 && RUBY_API_VERSION_MINOR >= 4) || RUBY_API_VERSION_MAJOR >= 4
// Do not attempt to modify chilled strings on Ruby 3.4+
// RUBY_FL_USER2 == STR_CHILLED_LITERAL
// RUBY_FL_USER3 == STR_CHILLED_SYMBOL_TO_S
&& !FL_TEST_RAW(ptr->string, RUBY_FL_USER2 | RUBY_FL_USER3)
#endif
) {
if (!NIL_P(ptr->string) && WRITABLE(self) && !str_chilled_p(ptr->string)) {
rb_enc_associate(ptr->string, enc);
}