[ruby/stringio] No compatibility check in US-ASCII case

https://github.com/ruby/stringio/commit/59df1c8293
This commit is contained in:
Nobuyoshi Nakada 2020-07-19 16:08:03 +09:00
parent c62aff1632
commit ddb2acbba6
Notes: git 2020-07-20 14:59:45 +09:00
2 changed files with 9 additions and 2 deletions

View File

@ -1429,14 +1429,15 @@ strio_write(VALUE self, VALUE str)
long len, olen;
rb_encoding *enc, *enc2;
rb_encoding *const ascii8bit = rb_ascii8bit_encoding();
rb_encoding *usascii = 0;
if (!RB_TYPE_P(str, T_STRING))
str = rb_obj_as_string(str);
enc = get_enc(ptr);
enc2 = rb_enc_get(str);
if (enc != enc2 && enc != ascii8bit) {
if (enc != enc2 && enc != ascii8bit && enc != (usascii = rb_usascii_encoding())) {
VALUE converted = rb_str_conv_enc(str, enc2, enc);
if (converted == str && enc2 != ascii8bit) { /* conversion failed */
if (converted == str && enc2 != ascii8bit && enc2 != usascii) { /* conversion failed */
rb_enc_check(rb_enc_from_encoding(enc), str);
}
str = converted;

View File

@ -195,9 +195,15 @@ class TestStringIO < Test::Unit::TestCase
s = StringIO.new.set_encoding(conversion_encoding)
s.write(convertible)
assert_equal(conversion_encoding, s.string.encoding)
s = StringIO.new.set_encoding(Encoding::UTF_8)
s.write("foo".force_encoding("ISO-8859-1"), convertible)
assert_equal(Encoding::UTF_8, s.string.encoding)
s = StringIO.new.set_encoding(Encoding::US_ASCII)
s.write("foo".force_encoding("US-ASCII"), convertible)
assert_equal(Encoding::UTF_8, s.string.encoding)
all_assertions do |a|
[
inconvertible,