diff options
| -rw-r--r-- | string.c | 14 | ||||
| -rw-r--r-- | test/ruby/test_string.rb | 14 | ||||
| -rw-r--r-- | version.h | 2 |
3 files changed, 28 insertions, 2 deletions
@@ -1297,6 +1297,7 @@ str_new_empty(VALUE str) } #define STR_BUF_MIN_SIZE 127 +STATIC_ASSERT(STR_BUF_MIN_SIZE, STR_BUF_MIN_SIZE > RSTRING_EMBED_LEN_MAX); VALUE rb_str_buf_new(long capa) @@ -1579,7 +1580,18 @@ rb_str_init(int argc, VALUE *argv, VALUE str) } str_modifiable(str); if (STR_EMBED_P(str)) { /* make noembed always */ - RSTRING(str)->as.heap.ptr = ALLOC_N(char, (size_t)capa + termlen); + char *new_ptr = ALLOC_N(char, (size_t)capa + termlen); + memcpy(new_ptr, RSTRING(str)->as.ary, RSTRING_EMBED_LEN_MAX + 1); + RSTRING(str)->as.heap.ptr = new_ptr; + } + else if (FL_TEST(str, STR_SHARED|STR_NOFREE)) { + const size_t size = (size_t)capa + termlen; + const char *const old_ptr = RSTRING_PTR(str); + const size_t osize = RSTRING(str)->as.heap.len + TERM_LEN(str); + char *new_ptr = ALLOC_N(char, (size_t)capa + termlen); + memcpy(new_ptr, old_ptr, osize < size ? osize : size); + FL_UNSET_RAW(str, STR_SHARED); + RSTRING(str)->as.heap.ptr = new_ptr; } else if (STR_HEAP_SIZE(str) != (size_t)capa + termlen) { REALLOC_N(RSTRING(str)->as.heap.ptr, char, (size_t)capa + termlen); diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb index ae5b22c19e..2aed90193e 100644 --- a/test/ruby/test_string.rb +++ b/test/ruby/test_string.rb @@ -68,6 +68,20 @@ class TestString < Test::Unit::TestCase assert_raise(FrozenError){ str.__send__(:initialize, encoding: 'euc-jp') } assert_raise(FrozenError){ str.__send__(:initialize, 'abc', encoding: 'euc-jp') } assert_raise(FrozenError){ str.__send__(:initialize, 'abc', capacity: 1000, encoding: 'euc-jp') } + + str = S("") + assert_equal("mystring", str.__send__(:initialize, "mystring")) + str = S("mystring") + assert_equal("mystring", str.__send__(:initialize, str)) + str = S("") + assert_equal("mystring", str.__send__(:initialize, "mystring", capacity: 1000)) + str = S("mystring") + assert_equal("mystring", str.__send__(:initialize, str, capacity: 1000)) + end + + def test_initialize_shared + String.new(str = "mystring" * 10).__send__(:initialize, capacity: str.bytesize) + assert_equal("mystring", str[0, 8]) end def test_initialize_nonstring @@ -1,6 +1,6 @@ #define RUBY_VERSION "2.5.6" #define RUBY_RELEASE_DATE "2019-08-27" -#define RUBY_PATCHLEVEL 187 +#define RUBY_PATCHLEVEL 188 #define RUBY_RELEASE_YEAR 2019 #define RUBY_RELEASE_MONTH 8 |