diff options
Diffstat (limited to 'ext')
-rw-r--r-- | ext/-test-/string/cstr.c | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/ext/-test-/string/cstr.c b/ext/-test-/string/cstr.c index 897793d7ed..9bd33a344e 100644 --- a/ext/-test-/string/cstr.c +++ b/ext/-test-/string/cstr.c @@ -1,5 +1,4 @@ -#include "ruby.h" -#include "ruby/encoding.h" +#include "internal.h" static VALUE bug_str_cstr_term(VALUE str) @@ -71,6 +70,44 @@ bug_str_s_cstr_term_char(VALUE self, VALUE str) return bug_str_cstr_term_char(str); } +#define TERM_LEN(str) rb_enc_mbminlen(rb_enc_get(str)) +#define TERM_FILL(ptr, termlen) do {\ + char *const term_fill_ptr = (ptr);\ + const int term_fill_len = (termlen);\ + *term_fill_ptr = '\0';\ + if (UNLIKELY(term_fill_len > 1))\ + memset(term_fill_ptr, 0, term_fill_len);\ +} while (0) + +static VALUE +bug_str_s_cstr_noembed(VALUE self, VALUE str) +{ + VALUE str2 = rb_str_new(NULL, 0); + long capacity = RSTRING_LEN(str) + TERM_LEN(str); + char *buf = ALLOC_N(char, capacity); + Check_Type(str, T_STRING); + FL_SET((str2), STR_NOEMBED); + memcpy(buf, RSTRING_PTR(str), capacity); + RBASIC(str2)->flags &= ~RSTRING_EMBED_LEN_MASK; + RSTRING(str2)->as.heap.aux.capa = capacity; + RSTRING(str2)->as.heap.ptr = buf; + RSTRING(str2)->as.heap.len = RSTRING_LEN(str); + TERM_FILL(RSTRING_END(str2), TERM_LEN(str)); + return str2; +} + +static VALUE +bug_str_s_cstr_embedded_p(VALUE self, VALUE str) +{ + return STR_EMBED_P(str) ? Qtrue : Qfalse; +} + +static VALUE +bug_str_s_rb_str_new_frozen(VALUE self, VALUE str) +{ + return rb_str_new_frozen(str); +} + void Init_cstr(VALUE klass) { @@ -80,4 +117,7 @@ Init_cstr(VALUE klass) rb_define_singleton_method(klass, "cstr_term", bug_str_s_cstr_term, 1); rb_define_singleton_method(klass, "cstr_unterm", bug_str_s_cstr_unterm, 2); rb_define_singleton_method(klass, "cstr_term_char", bug_str_s_cstr_term_char, 1); + rb_define_singleton_method(klass, "cstr_noembed", bug_str_s_cstr_noembed, 1); + rb_define_singleton_method(klass, "cstr_embedded?", bug_str_s_cstr_embedded_p, 1); + rb_define_singleton_method(klass, "rb_str_new_frozen", bug_str_s_rb_str_new_frozen, 1); } |