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| author | ksss <[email protected]> | 2017-03-05 22:57:56 +0900 |
|---|---|---|
| committer | ksss <[email protected]> | 2017-03-05 23:04:22 +0900 |
| commit | eba4b1fd76ae22efc23341f028deb924fdc9401c (patch) | |
| tree | 9ef7f5ed658a8f2971370b913be0a424bad63ced /mrblib/string.rb | |
| parent | d050694580e99bc5699da36640d8ce2b4e93c5d0 (diff) | |
| download | mruby-eba4b1fd76ae22efc23341f028deb924fdc9401c.tar.gz mruby-eba4b1fd76ae22efc23341f028deb924fdc9401c.zip | |
Check modifiable for String `bang' methods
Diffstat (limited to 'mrblib/string.rb')
| -rw-r--r-- | mrblib/string.rb | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mrblib/string.rb b/mrblib/string.rb index aa2ca9973..b13cfd69a 100644 --- a/mrblib/string.rb +++ b/mrblib/string.rb @@ -78,6 +78,7 @@ class String # # ISO 15.2.10.5.19 def gsub!(*args, &block) + raise RuntimeError, "can't modify frozen String" if frozen? str = self.gsub(*args, &block) return nil if str == self self.replace(str) @@ -123,6 +124,7 @@ class String # # ISO 15.2.10.5.37 def sub!(*args, &block) + raise RuntimeError, "can't modify frozen String" if frozen? str = self.sub(*args, &block) return nil if str == self self.replace(str) |