diff options
| -rw-r--r-- | class.c | 3 | ||||
| -rw-r--r-- | test/-ext-/string/test_fstring.rb | 9 |
2 files changed, 12 insertions, 0 deletions
@@ -1602,6 +1602,9 @@ singleton_class_of(VALUE obj) switch (BUILTIN_TYPE(obj)) { case T_FLOAT: case T_BIGNUM: case T_SYMBOL: goto no_singleton; + case T_STRING: + if (FL_TEST_RAW(obj, RSTRING_FSTR)) goto no_singleton; + break; } } diff --git a/test/-ext-/string/test_fstring.rb b/test/-ext-/string/test_fstring.rb index 39ed020892..0514814dd4 100644 --- a/test/-ext-/string/test_fstring.rb +++ b/test/-ext-/string/test_fstring.rb @@ -1,8 +1,11 @@ # frozen_string_literal: false require 'test/unit' require '-test-/string' +require_relative '../symbol/noninterned_name' class Test_String_Fstring < Test::Unit::TestCase + include Test_Symbol::NonInterned + def assert_fstring(str) fstr = Bug::String.fstring(str) yield str @@ -54,6 +57,12 @@ class Test_String_Fstring < Test::Unit::TestCase assert_fstring(str) {|s| assert_send([s, :respond_to?, :foo])} end + def test_singleton_class + str = noninterned_name.force_encoding("us-ascii") + fstr = Bug::String.fstring(str) + assert_raise(RuntimeError) {fstr.singleton_class} + end + class S < String end |