Auto merge of #7690 - frewsxcv:codegen-cleanup, r=nox

Minor DOM codegen cleanup



<!-- Reviewable:start -->
[<img src="https://reviewable.io/review_button.png" height=40 alt="Review on Reviewable"/>](https://reviewable.io/reviews/servo/servo/7690)
<!-- Reviewable:end -->

1 files changed, 9 insertions, 9 deletions

diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index e5a90633f01..0ccf51cd356 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -650,7 +650,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
 
     """
     # We should not have a defaultValue if we know we're an object
-    assert(not isDefinitelyObject or defaultValue is None)
+    assert not isDefinitelyObject or defaultValue is None
 
     # If exceptionCode is not set, we'll just rethrow the exception we got.
     # Note that we can't just set failureCode to exceptionCode, because setting
@@ -908,7 +908,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
                    "handleInvalidEnumValueCode": handleInvalidEnumValueCode})
 
         if defaultValue is not None:
-            assert(defaultValue.type.tag() == IDLType.Tags.domstring)
+            assert defaultValue.type.tag() == IDLType.Tags.domstring
             default = "%s::%s" % (enum, getEnumValueName(defaultValue.value))
         else:
             default = None
@@ -1065,7 +1065,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
             elif tag in numericTags:
                 defaultStr = str(defaultValue.value)
             else:
-                assert(tag == IDLType.Tags.bool)
+                assert tag == IDLType.Tags.bool
                 defaultStr = toStringBool(defaultValue.value)
 
             if type.nullable():
@@ -1137,7 +1137,7 @@ class CGArgumentConverter(CGThing):
     def __init__(self, argument, index, args, argc, descriptorProvider,
                  invalidEnumValueFatal=True):
         CGThing.__init__(self)
-        assert(not argument.defaultValue or argument.optional)
+        assert not argument.defaultValue or argument.optional
 
         replacer = {
             "index": index,
@@ -1364,7 +1364,7 @@ class PropertyDefiner:
           returns a tuple suitable for substitution into specTemplate.
         """
 
-        assert(len(array) is not 0)
+        assert len(array) != 0
         specs = []
 
         for member in array:
@@ -3034,8 +3034,8 @@ class CGMemberJITInfo(CGThing):
         reason (e.g. we have overloads or we're not a method) and
         otherwise an iterable of the arguments for this method.
         """
-        assert(not movable or aliasSet != "AliasEverything")  # Can't move write-aliasing things
-        assert(not alwaysInSlot or movable)  # Things always in slots had better be movable
+        assert not movable or aliasSet != "AliasEverything"  # Can't move write-aliasing things
+        assert not alwaysInSlot or movable  # Things always in slots had better be movable
 
         def jitInfoInitializer(isTypedMethod):
             initializer = fill(
@@ -4156,7 +4156,7 @@ class CGDOMJSProxyHandler_defineProperty(CGAbstractExternMethod):
 
         indexedSetter = self.descriptor.operations['IndexedSetter']
         if indexedSetter:
-            if not (self.descriptor.operations['IndexedCreator'] is indexedSetter):
+            if self.descriptor.operations['IndexedCreator'] != indexedSetter:
                 raise TypeError("Can't handle creator that's different from the setter")
             set += ("let index = get_array_index_from_id(cx, id);\n" +
                     "if let Some(index) = index {\n" +
@@ -4173,7 +4173,7 @@ class CGDOMJSProxyHandler_defineProperty(CGAbstractExternMethod):
 
         namedSetter = self.descriptor.operations['NamedSetter']
         if namedSetter:
-            if not self.descriptor.operations['NamedCreator'] is namedSetter:
+            if self.descriptor.operations['NamedCreator'] != namedSetter:
                 raise TypeError("Can't handle creator that's different from the setter")
             set += ("if RUST_JSID_IS_STRING(id) != 0 {\n" +
                     CGIndenter(CGProxyNamedSetter(self.descriptor)).define() +