From 7b9286b2c203b7548bcaf6fd9f11b05142896dd6 Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Thu, 9 Dec 2010 21:03:41 -0500
Subject: [PATCH] Issue #905. Fixing soaked-value-as-a-comprehension-subject
 ... incorrect LEVEL_TOP.

---
 lib/nodes.js                    | 2 +-
 src/nodes.coffee                | 2 +-
 test/test_comprehensions.coffee | 8 ++++++++
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/lib/nodes.js b/lib/nodes.js
index 90ee23bc..3f1c2d15 100644
--- a/lib/nodes.js
+++ b/lib/nodes.js
@@ -1800,7 +1800,7 @@
           step: this.step
         }));
       } else {
-        svar = this.source.compile(o, LEVEL_TOP);
+        svar = this.source.compile(o, LEVEL_PAREN);
         if ((name || this.own) && !IDENTIFIER.test(svar)) {
           defPart = "" + this.tab + (ref = scope.freeVariable('ref')) + " = " + svar + ";\n";
           svar = ref;
diff --git a/src/nodes.coffee b/src/nodes.coffee
index 4c8c8133..56f67d64 100644
--- a/src/nodes.coffee
+++ b/src/nodes.coffee
@@ -1438,7 +1438,7 @@ exports.For = class For extends Base
     if @range
       forPart = source.compile merge(o, {index: ivar, @step})
     else
-      svar = @source.compile o, LEVEL_TOP
+      svar = @source.compile o, LEVEL_PAREN
       if (name or @own) and not IDENTIFIER.test svar
         defPart = "#{@tab}#{ref = scope.freeVariable 'ref'} = #{svar};\n"
         svar = ref
diff --git a/test/test_comprehensions.coffee b/test/test_comprehensions.coffee
index 54f802e9..c3c74d6b 100644
--- a/test/test_comprehensions.coffee
+++ b/test/test_comprehensions.coffee
@@ -241,3 +241,11 @@ list = ['one', 'two']
 
 eq typeof entity, 'undefined'
 eq facets['two'](), 'two'
+
+
+# Issue #905. Soaks as the for loop subject.
+a = {b: {c: [1, 2, 3]}}
+for d in a.b?.c
+  e = d
+
+eq e, 3