module.rbs in rbs-1.0.0.pre2

- old
+ new
@@ -441,9 +441,50 @@
   #
   #     Object.const_set('foobar', 42) #=> NameError: wrong constant name foobar
   #
   def const_set: (Symbol | String arg0, untyped arg1) -> untyped
 
+  # Returns the Ruby source filename and line number containing first definition
+  # of constant specified. If the named constant is not found, `nil` is returned.
+  # If the constant is found, but its source location can not be extracted
+  # (constant is defined in C code), empty array is returned.
+  #
+  # *inherit* specifies whether to lookup in `mod.ancestors` (`true` by default).
+  #
+  #     # test.rb:
+  #     class A
+  #       C1 = 1
+  #     end
+  #
+  #     module M
+  #       C2 = 2
+  #     end
+  #
+  #     class B < A
+  #       include M
+  #       C3 = 3
+  #     end
+  #
+  #     class A # continuation of A definition
+  #     end
+  #
+  #     p B.const_source_location('C3')           # => ["test.rb", 11]
+  #     p B.const_source_location('C2')           # => ["test.rb", 6]
+  #     p B.const_source_location('C1')           # => ["test.rb", 2]
+  #
+  #     p B.const_source_location('C2', false)    # => nil  -- don't lookup in ancestors
+  #
+  #     p Object.const_source_location('B')       # => ["test.rb", 9]
+  #     p Object.const_source_location('A')       # => ["test.rb", 1]  -- note it is first entry, not "continuation"
+  #
+  #     p B.const_source_location('A')            # => ["test.rb", 1]  -- because Object is in ancestors
+  #     p M.const_source_location('A')            # => ["test.rb", 1]  -- Object is not ancestor, but additionally checked for modules
+  #
+  #     p Object.const_source_location('A::C1')   # => ["test.rb", 2]  -- nesting is supported
+  #     p Object.const_source_location('String')  # => []  -- constant is defined in C code
+  #
+  def const_source_location: (Symbol | String name, ?boolish inherit) -> ([String, Integer] | [ ] | nil)
+
   # Returns an array of the names of the constants accessible in *mod*. This
   # includes the names of constants in any included modules (example at start of
   # section), unless the *inherit* parameter is set to `false`.
   #
   # The implementation makes no guarantees about the order in which the constants