Add function head for declare_let with a list of names

bryanjos · bryanjos · commit ca285295b2f6 · 2017-08-24T22:27:00.000-05:00
diff --git a/lib/elixir_script/passes/translate/function.ex b/lib/elixir_script/passes/translate/function.ex
@@ -134,7 +134,7 @@ defmodule ElixirScript.Translate.Function do
     |> Clause.return_last_statement
     |> update_last_call(state)
 
-    declaration = Helpers.declare(params, J.identifier("__arg_matches__"))
+    declaration = Helpers.declare_let(params, J.identifier("__arg_matches__"))
 
     body = [declaration] ++ body
     {patterns, params, guard, body}
diff --git a/lib/elixir_script/passes/translate/helpers.ex b/lib/elixir_script/passes/translate/helpers.ex
@@ -111,6 +111,15 @@ defmodule ElixirScript.Translate.Helpers do
     declare(J.identifier(name), value)
   end
 
+  def declare_let(names, value) when is_list(names) do
+    declarator = J.variable_declarator(
+      J.array_pattern(names),
+      value
+    )
+
+    J.variable_declaration([declarator], :let)
+  end
+
   def declare_let(name, value) do
     declarator = J.variable_declarator(
       J.identifier(name),
