From 8234ce2712985be187dade4c8c98ae7bf3dc74ae Mon Sep 17 00:00:00 2001
From: Julian Rosse <julian@helixbass.net>
Date: Sun, 25 Jun 2017 13:39:45 -0500
Subject: [PATCH] error message for implicit call [Fixes #4283]

---
 lib/coffee-script/rewriter.js | 2 +-
 src/rewriter.coffee           | 2 +-
 test/error_messages.coffee    | 9 +++++++++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/lib/coffee-script/rewriter.js b/lib/coffee-script/rewriter.js
index a12c3ae584..8e7a6183a9 100644
--- a/lib/coffee-script/rewriter.js
+++ b/lib/coffee-script/rewriter.js
@@ -213,7 +213,7 @@
               ours: true
             }
           ]);
-          tokens.splice(idx, 0, generate('CALL_START', '('));
+          tokens.splice(idx, 0, generate('CALL_START', '(', ['', 'implicit function call', token[2]]));
           if (j == null) {
             return i += 1;
           }
diff --git a/src/rewriter.coffee b/src/rewriter.coffee
index 0d173f04ca..ef409cb417 100644
--- a/src/rewriter.coffee
+++ b/src/rewriter.coffee
@@ -162,7 +162,7 @@ exports.Rewriter = class Rewriter
       startImplicitCall = (j) ->
         idx = j ? i
         stack.push ['(', idx, ours: yes]
-        tokens.splice idx, 0, generate 'CALL_START', '('
+        tokens.splice idx, 0, generate 'CALL_START', '(', ['', 'implicit function call', token[2]]
         i += 1 if not j?
 
       endImplicitCall = ->
diff --git a/test/error_messages.coffee b/test/error_messages.coffee
index d09acb025d..0116c55616 100644
--- a/test/error_messages.coffee
+++ b/test/error_messages.coffee
@@ -1319,3 +1319,12 @@ test "#4248: Unicode code point escapes", ->
     '\\u{a}\\u{1111110000}'
       \    ^\^^^^^^^^^^^^^
   '''
+
+test "#4283: error message for implicit call", ->
+  assertErrorFormat '''
+    console.log {search, users, contacts users_to_display}
+  ''', '''
+    [stdin]:1:29: error: unexpected implicit function call
+    console.log {search, users, contacts users_to_display}
+                                ^^^^^^^^
+  '''