[Feature #19579] Remove !USE_RVARGC code (#7655)

Remove !USE_RVARGC code

[Feature #19579]

The Variable Width Allocation feature was turned on by default in Ruby
3.2. Since then, we haven't received bug reports or backports to the
non-Variable Width Allocation code paths, so we assume that nobody is
using it. We also don't plan on maintaining the non-Variable Width
Allocation code, so we are going to remove it.

1 files changed, 0 insertions, 9 deletions

diff --git a/ext/-test-/string/cstr.c b/ext/-test-/string/cstr.c
index 468ee7a3b1..ecca793145 100644
--- a/ext/-test-/string/cstr.c
+++ b/ext/-test-/string/cstr.c
@@ -62,12 +62,7 @@ bug_str_unterminated_substring(VALUE str, VALUE vbeg, VALUE vlen)
     if (RSTRING_LEN(str) < beg + len) rb_raise(rb_eIndexError, "end: %ld", beg + len);
     str = rb_str_new_shared(str);
     if (STR_EMBED_P(str)) {
-#if USE_RVARGC
         RSTRING(str)->as.embed.len = (short)len;
-#else
-        RSTRING(str)->basic.flags &= ~RSTRING_EMBED_LEN_MASK;
-        RSTRING(str)->basic.flags |= len << RSTRING_EMBED_LEN_SHIFT;
-#endif
         memmove(RSTRING(str)->as.embed.ary, RSTRING(str)->as.embed.ary + beg, len);
     }
     else {
@@ -116,11 +111,7 @@ bug_str_s_cstr_noembed(VALUE self, VALUE str)
     Check_Type(str, T_STRING);
     FL_SET((str2), STR_NOEMBED);
     memcpy(buf, RSTRING_PTR(str), capacity);
-#if USE_RVARGC
     RBASIC(str2)->flags &= ~(STR_SHARED | FL_USER5 | FL_USER6);
-#else
-    RBASIC(str2)->flags &= ~RSTRING_EMBED_LEN_MASK;
-#endif
     RSTRING(str2)->as.heap.aux.capa = capacity;
     RSTRING(str2)->as.heap.ptr = buf;
     RSTRING(str2)->as.heap.len = RSTRING_LEN(str);