Remove <if> statements before checking JS code by checker.py

third_party/closure_compiler/checker.py

Index: third_party/closure_compiler/checker.py
diff --git a/third_party/closure_compiler/checker.py b/third_party/closure_compiler/checker.py
index 7dda25fc1fc2cfcfcc88efc11203e29e65cba4ac..5a6db172fb807049e397d2e716fb95bd3c054432 100644
--- a/third_party/closure_compiler/checker.py
+++ b/third_party/closure_compiler/checker.py
@@ -31,6 +31,7 @@ class FileCache(object):
 
 
 class Flattener(object):
+  _IF_TAGS_REG = "</?if[^>]*?>"
   _INCLUDE_REG = "<include[^>]+src=['\"]([^>]*)['\"]>"
 
   def __init__(self, file):
@@ -46,6 +47,11 @@ class Flattener(object):
       else:
         self.index += 1
 
+    # Replace every occurrence of tags like <if expr="..."> and </if>
+    # with an empty string.

[Dan Beam, 2014/08/02 00:04:56]

^ i think the code pretty clearly shows this, but sure

+    for i, line in enumerate(self.lines):
+      self.lines[i] = line[:2] + (re.sub(self._IF_TAGS_REG, "", line[2]),)
+
     self.contents = "\n".join(l[2] for l in self.lines)
 
   # Returns a list of tuples in the format: (file, line number, line contents).