This means the second item in the AST is no longer an integer
(representing the line), but a keywords list. Code that relies
on the line information from AST or that manually generate AST
nodes need to be properly updated.
the same syntax and be case insensitive. Also relocated the character type macros
into lib/elixir/include/elixir.hrl so that they didn't need to be defined in both
lib/elixir/src/elixir_interpolation.erl and lib/elixir/src/elixir_tokenizer.erl.
Added to the erlang and elixir unit tests to test the new syntax.
The following code:
counter = 1
counter = 2
Is now rewritten internally to:
counter = 1
counter@1 = 2
Which gives us a couple things:
1. Better debugging
2. We can now show warnings for rebound variables not used
Elixir also keeps `_@` prefix to store internal variables
(for example, `_@1`, `_@MODULE`, etc).
Closes#607.
José Valim
Kim Shrier