Fix Coverage.supported? and raise TypeError if argument is not Symbol

andrykonchin · andrykonchin · commit 0d7750bff9f1 · 2024-01-25T21:14:59.000+02:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -32,6 +32,7 @@ Compatibility:
 * Make `Coverage.start` and `Coverage.result` accept parameters (#3149, @mtortonesi, @andrykonchin).
 * Implement `rb_check_funcall()` (@eregon).
 * Implement `MatchData#{byteoffset,deconstruct,deconstruct_keys}` from Ruby 3.2 (#3039, @rwstauner).
+* Fix `Coverage.supported?` and raise `TypeError` if argument is not Symbol (#3039, @andrykonchin).
 
 Performance:
 
diff --git a/lib/truffle/coverage.rb b/lib/truffle/coverage.rb
@@ -11,6 +11,7 @@
 
 module Coverage
   def self.supported?(mode)
+    Truffle::Type.rb_check_type(mode, Symbol)
     mode == :lines
   end
 
diff --git a/spec/tags/library/coverage/supported_tags.txt b/spec/tags/library/coverage/supported_tags.txt
