Ensure local is disabled on module definitions

Author: José Valim

lib/elixir/include/elixir.hrl

@@ -9,7 +9,7 @@
 -define(line(Opts), elixir_utils:get_line(Opts)).
 
 -record(elixir_scope, {
-  context=nil,             %% can be assign, guards or nil
+  context=nil,             %% can be match, guards or nil
   extra=nil,               %% extra information about the context, like fn_match and do_match
   noname=false,            %% when true, don't add new names (used by try)
   super=false,             %% when true, it means super was invoked
@@ -32,7 +32,7 @@
   file=(<<"nofile">>),     %% the current filename
   line=1,                  %% the current line
   function=nil,            %% the current function
-  context=nil,             %% can be assign, guards or nil
+  context=nil,             %% can be match_vars, guards or nil
   requires=[],             %% a set with modules required
   aliases=[],              %% an orddict with aliases by new -> old names
   functions=[],            %% a list with functions imported from module

lib/elixir/src/elixir_module.erl

@@ -24,8 +24,8 @@ compile(Module, Block, Vars, #elixir_env{line=Line} = Env) when is_atom(Module)
   %% we get rid of the lexical tracker information as, at this
   %% point, the lexical tracker process is long gone.
   LexEnv = case Env#elixir_env.function of
-    nil -> Env#elixir_env{module=Module};
-    _   -> Env#elixir_env{lexical_tracker=nil, function=nil, module=Module}
+    nil -> Env#elixir_env{module=Module, local=nil};
+    _   -> Env#elixir_env{lexical_tracker=nil, function=nil, module=Module, local=nil}
   end,
 
   case LexEnv#elixir_env.lexical_tracker of

lib/iex/test/iex/interaction_test.exs

@@ -66,6 +66,19 @@ defmodule IEx.InteractionTest do
     assert "** (RuntimeError) undefined function: many/3"     <> _ = capture_iex("many(:ok, 22, \"hi\")")
   end
 
+  test "module definition" do
+    input = """
+    defmodule Sample do
+      def foo, do: bar
+      def bar, do: 13
+    end && Sample.foo
+    """
+    assert capture_iex(input) =~ "13"
+  after
+    :code.purge(Sample)
+    :code.delete(Sample)
+  end
+
   ## .iex file loading
 
   test "no .iex" do