Move modules-dependent IDL statements out of core by supporting 'implements' in RHS interface

Source/bindings/scripts/utilities.py

Index: Source/bindings/scripts/utilities.py
diff --git a/Source/bindings/scripts/utilities.py b/Source/bindings/scripts/utilities.py
index 0f16281b79fb434dd877b586cb211b245dc9a9ad..a8af9d50da6d4c07c538c176b37859ac5c970be0 100644
--- a/Source/bindings/scripts/utilities.py
+++ b/Source/bindings/scripts/utilities.py
@@ -61,12 +61,24 @@ def get_partial_interface_name_from_idl(file_contents):
 def get_implemented_interfaces_from_idl(file_contents, interface_name):
     # Rule is: identifier-A implements identifier-B;
     # http://www.w3.org/TR/WebIDL/#idl-implements-statements
-    def get_implemented(left_identifier, right_identifier):
-        # identifier-A must be the current interface
-        if left_identifier != interface_name:
-            raise IdlBadFilenameError("Identifier on the left of the 'implements' statement should be %s in %s.idl, but found %s" % (interface_name, interface_name, left_identifier))
-        return right_identifier
+    implements_re = (r'^\s*'
+                     r'(\w+)\s+'
+                     r'implements\s+'
+                     r'(\w+)\s*'
+                     r';')
+    implements_matches = re.finditer(implements_re, file_contents, re.MULTILINE)
+    implements_pairs = [(match.group(1), match.group(2))
+                        for match in implements_matches]
+    implemented_interfaces = []
+    for left, right in implements_pairs:
+        if left == interface_name:
+            implemented_interfaces.append(right)
+    return implemented_interfaces
+
 
+def get_source_interfaces_from_idl(file_contents, interface_name):
+    # Rule is: identifier-A implements identifier-B;
+    # http://www.w3.org/TR/WebIDL/#idl-implements-statements
     implements_re = (r'^\s*'

[Inactive, 2014/05/07 20:00:27]

The code duplication with get_implemented_interfaces_from_idl() is not nice,
please try to reduce the existing function instead.

                      r'(\w+)\s+'
                      r'implements\s+'
@@ -75,7 +87,11 @@ def get_implemented_interfaces_from_idl(file_contents, interface_name):
     implements_matches = re.finditer(implements_re, file_contents, re.MULTILINE)
     implements_pairs = [(match.group(1), match.group(2))
                         for match in implements_matches]
-    return [get_implemented(left, right) for left, right in implements_pairs]
+    source_interfaces = []
+    for left, right in implements_pairs:
+        if right == interface_name:
+            source_interfaces.append(left)
+    return source_interfaces
 
 
 def is_callback_interface_from_idl(file_contents):