Annotate Symbol#to_s as leaf (#9769)

1 files changed, 15 insertions, 0 deletions

diff --git a/symbol.rb b/symbol.rb
index f31bf0bee3..bfac11ae21 100644
--- a/symbol.rb
+++ b/symbol.rb
@@ -1,5 +1,20 @@
 class Symbol
   # call-seq:
+  #   to_s -> string
+  #
+  # Returns a string representation of +self+ (not including the leading colon):
+  #
+  #   :foo.to_s # => "foo"
+  #
+  # Related: Symbol#inspect, Symbol#name.
+  def to_s
+    Primitive.attr! :leaf
+    Primitive.cexpr! 'rb_sym_to_s(self)'
+  end
+
+  alias id2name to_s
+
+  # call-seq:
   #   to_sym -> self
   #
   # Returns +self+.