Some tests for brackets syntax.

Author: josevalim

lib/list.ex

@@ -19,6 +19,10 @@ object List
     Erlang.lists.foldr(function, acc, self)
   end
 
+  def [](number)
+    Erlang.lists.nth(number + 1, self)
+  end
+
   % Calls the function once for each element in the list.
   %
   % Returns a new list containing the values returned by the function.

src/elixir_parser.yrl

@@ -175,7 +175,7 @@ np_method_call_expr -> without_args_method_call_expr : '$1'.
 without_args_method_call_expr -> np_call_exprs dot_eol method_name : build_method_call('$1', '$3', []).
 
 % Brackets call
-brackets_expr -> call_exprs open_bracket comma_expr close_bracket : build_method_call('$1', '[]', '$3').
+brackets_expr -> call_exprs open_bracket comma_expr close_bracket : build_method_call('$1', { identifier, ?line('$2'), '[]' }, '$3').
 brackets_expr -> call_exprs : '$1'.
 
 % Calls with parens
@@ -226,7 +226,7 @@ _np_method_call_expr -> _without_args_method_call_expr : '$1'.
 _without_args_method_call_expr -> _np_call_exprs dot_eol method_name : build_method_call('$1', '$3', []).
 
 % Brackets call
-_brackets_expr -> _call_exprs open_bracket comma_expr close_bracket : build_method_call('$1', '[]', '$3').
+_brackets_expr -> _call_exprs open_bracket comma_expr close_bracket : build_method_call('$1', { identifier, ?line('$2'), '[]' }, '$3').
 _brackets_expr -> _call_exprs : '$1'.
 
 % Calls with parens
@@ -530,10 +530,11 @@ method_name -> method_ops_identifier : { identifier, ?line('$1'), ?op('$1') }.
 implicit_method_ops_identifier -> div : '$1'.
 implicit_method_ops_identifier -> rem : '$1'.
 
-method_ops_identifier -> '+' : '$1'.
-method_ops_identifier -> '-' : '$1'.
-method_ops_identifier -> '*' : '$1'.
-method_ops_identifier -> '/' : '$1'.
+method_ops_identifier -> '+'     : '$1'.
+method_ops_identifier -> '-'     : '$1'.
+method_ops_identifier -> '*'     : '$1'.
+method_ops_identifier -> '/'     : '$1'.
+method_ops_identifier -> '[' ']' : { '[]', ?line('$1') }.
 
 Erlang code.
 

test/elixir/list_test.ex

@@ -66,4 +66,16 @@ object ListTest
     [8,6,4,9] = x.delete(6)
   end
 
+  def brackets_syntax_test
+    2 = [1,2,3][1]
+    2 = a_list()[1]
+    2 = self.a_list()[1]
+    2 = ([1] + [2,3])[1]
+  end
+
+  protected
+
+  def a_list
+    [1,2,3]
+  end
 end