Cleanup and simplify CGImports.

src/components/script/dom/bindings/codegen/CodegenRust.py

@@ -1880,25 +1880,29 @@ class CGImports(CGWrapper):
     """
     Generates the appropriate import/use statements.
     """
-    def __init__(self, descriptors, dictionaries, declareImports, defineImports, child):
+    def __init__(self, child, imports):
         """
-        Builds a set of imports to cover |descriptors|.
-
-        Also includes the files in |declareIncludes| in the header
-        file and the files in |defineIncludes| in the .cpp.
+        Adds a set of imports.
         """
+        ignored_warnings = [
+            # Allow unreachable_code because we use 'break' in a way that
+            # sometimes produces two 'break's in a row. See for example
+            # CallbackMember.getArgConversions.
+            'unreachable_code',
+            'non_uppercase_statics',
+            'unused_imports',
+            'unused_variable',
+            'unused_unsafe',
+            'unused_mut',
+            'dead_assignment',
+            'dead_code',
+        ]
 
-        # TODO imports to cover descriptors, etc.
+        statements = ['#[allow(%s)];' % ','.join(ignored_warnings)]
+        statements.extend('use %s;' % i for i in sorted(imports))
 
-        def _useString(imports):
-            # Allow unreachable_code because we use 'break' in a way that sometimes produces
-            # two 'break's in a row. See for example CallbackMember.getArgConversions.
-            return '\n'.join([
-                '#[allow(unreachable_code,non_uppercase_statics,unused_imports,unused_variable,unused_unsafe,unused_mut,dead_assignment,dead_code)];',
-                ''.join('use %s;\n' % i for i in imports),
-                ''])
         CGWrapper.__init__(self, child,
-                           declarePre=_useString(sorted(declareImports)))
+                           declarePre='\n'.join(statements) + '\n\n')
 
     @staticmethod
     def getDeclarationFilename(decl):
@@ -5008,9 +5012,8 @@ class CGBindingRoot(CGThing):
         # Add imports
         #XXXjdm This should only import the namespace for the current binding,
         #       not every binding ever.
-        curr = CGImports(descriptors,
-                         dictionaries,
-                         ['js::{crust, JS_ARGV, JS_CALLEE, JS_THIS_OBJECT}',
+        curr = CGImports(curr, [
+            'js::{crust, JS_ARGV, JS_CALLEE, JS_THIS_OBJECT}',
             'js::{JSCLASS_GLOBAL_SLOT_COUNT, JSCLASS_IS_DOMJSCLASS}',
             'js::{JSCLASS_IS_GLOBAL, JSCLASS_RESERVED_SLOTS_SHIFT}',
             'js::{JSCLASS_RESERVED_SLOTS_MASK, JSID_VOID, JSJitInfo}',
@@ -5077,9 +5080,7 @@ class CGBindingRoot(CGThing):
             'std::num',
             'std::unstable::intrinsics::uninit',
             'std::unstable::raw::Box',
-                         ], 
-                         [],
-                         curr)
+        ])
 
         # Add the auto-generated comment.
         curr = CGWrapper(curr, pre=AUTOGENERATED_WARNING_COMMENT)
@@ -5988,24 +5989,11 @@ class GlobalGenRoots():
 
     @staticmethod
     def RegisterBindings(config):
-
         # TODO - Generate the methods we want
-        curr = CGRegisterProtos(config)
-
-        # Wrap all of that in our namespaces.
-        #curr = CGNamespace.build(['mozilla', 'dom'],
-        #                         CGWrapper(curr, post='\n'))
-        #curr = CGWrapper(curr, post='\n')
-
-        # Add the includes
-        defineIncludes = [CGImports.getDeclarationFilename(desc.interface)
-                          for desc in config.getDescriptors(hasInterfaceObject=True,
-                                                            register=True)]
-        curr = CGImports([], [], ['dom::bindings::codegen',
-                                  'script_task::JSPageInfo'], defineIncludes, curr)
-
-        # Done.
-        return curr
+        return CGImports(CGRegisterProtos(config), [
+            'dom::bindings::codegen',
+            'script_task::JSPageInfo',
+        ])
 
     @staticmethod
     def InterfaceTypes(config):
@@ -6138,8 +6126,10 @@ class GlobalGenRoots():
         # Add include guards.
         #curr = CGIncludeGuard('UnionTypes', curr)
 
-        curr = CGImports([], [], ['dom::bindings::js::JS',
-                                  'dom::types::*'], [], curr)
+        curr = CGImports(curr, [
+            'dom::bindings::js::JS',
+            'dom::types::*',
+        ])
 
         # Add the auto-generated comment.
         curr = CGWrapper(curr, pre=AUTOGENERATED_WARNING_COMMENT)
@@ -6163,7 +6153,7 @@ class GlobalGenRoots():
         # Add include guards.
         #curr = CGIncludeGuard('UnionConversions', curr)
 
-        curr = CGImports([], [], [
+        curr = CGImports(curr, [
             'dom::bindings::utils::unwrap_jsmanaged',
             'dom::bindings::codegen::UnionTypes::*',
             'dom::bindings::codegen::PrototypeList',
@@ -6189,7 +6179,8 @@ class GlobalGenRoots():
             'js::glue::{CallJitMethodOp, CallJitPropertyOp, CreateProxyHandler}',
             'js::glue::{GetProxyPrivate, NewProxyObject, ProxyTraps}',
             'js::glue::{RUST_FUNCTION_VALUE_TO_JITINFO}',
-                          'js::glue::{RUST_JS_NumberValue, RUST_JSID_IS_STRING}',], [], curr)
+            'js::glue::{RUST_JS_NumberValue, RUST_JSID_IS_STRING}',
+        ])
 
         # Add the auto-generated comment.
         curr = CGWrapper(curr, pre=AUTOGENERATED_WARNING_COMMENT)