Merge pull request #1486 from iij/pr-typeerror-string-start-end-with

Crash if you call String#start_with/end_with with non-String arguments.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/string.c b/src/string.c
index 88dcfc63e..fa581f025 100644
--- a/src/string.c
+++ b/src/string.c
@@ -1525,6 +1525,12 @@ mrb_ptr_to_str(mrb_state *mrb, void *p)
 }
 
 mrb_value
+mrb_string_type(mrb_state *mrb, mrb_value str)
+{
+  return mrb_convert_type(mrb, str, MRB_TT_STRING, "String", "to_str");
+}
+
+mrb_value
 mrb_check_string_type(mrb_state *mrb, mrb_value str)
 {
   return mrb_check_convert_type(mrb, str, MRB_TT_STRING, "String", "to_str");