mojom: Add associative arrays to the mojom language.

mojo/public/tools/bindings/pylib/mojom/parse/translate.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Translates parse tree to Mojom IR."""
 
 
 import re
 
 from . import ast
@@ skipping 22 matching lines @@
                  'string': 's',
                  'handle': 'h',
                  'handle<data_pipe_consumer>': 'h:d:c',
                  'handle<data_pipe_producer>': 'h:d:p',
                  'handle<message_pipe>': 'h:m',
                  'handle<shared_buffer>': 'h:s'}
   if kind.endswith('?'):
     base_kind = _MapKind(kind[0:-1])
     # NOTE: This doesn't rule out enum types. Those will be detected later, when
     # cross-reference is established.
-    reference_kinds = ('s', 'h', 'a', 'r', 'x')
+    reference_kinds = ('m', 's', 'h', 'a', 'r', 'x')
     if base_kind[0] not in reference_kinds:
       raise Exception(
           'A type (spec "%s") cannot be made nullable' % base_kind)
     return '?' + base_kind
+  if kind.endswith('}'):
+    lbracket = kind.rfind('{')
+    value = kind[0:lbracket]
+    return 'm[' + _MapKind(kind[lbracket+1:-1]) + '][' + _MapKind(value) + ']'
   if kind.endswith('[]'):
     typename = kind[0:-2]
     if _FIXED_ARRAY_REGEXP.search(typename):
       raise Exception('Arrays of fixed sized arrays not supported')
     return 'a:' + _MapKind(typename)
   if kind.endswith(']'):
     lbracket = kind.rfind('[')
     typename = kind[0:lbracket]
     if typename.find('[') != -1:
       raise Exception('Fixed sized arrays of arrays not supported')
@@ skipping 93 matching lines @@
         _MapTreeForType(InterfaceToDict, tree.definition_list, ast.Interface)
     self.mojom['enums'] = \
         _MapTreeForType(_EnumToDict, tree.definition_list, ast.Enum)
     self.mojom['constants'] = \
         _MapTreeForType(_ConstToDict, tree.definition_list, ast.Const)
     return self.mojom
 
 
 def Translate(tree, name):
   return _MojomBuilder().Build(tree, name)