Merge BaseGenerator into HtmlDartInterfaceGenerator.

lib/html/scripts/systembase.py

-#!/usr/bin/python
-# Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-"""This module provides base functionality for systems to generate
-Dart APIs from the IDL database."""
-
-import os
-from generator import *
-
-class BaseGenerator(object):
-  def __init__(self, database, type_registry, interface):
-    self._database = database
-    self._type_registry = type_registry
-    self._interface = interface
-
-  def Generate(self):
-    if 'Callback' in self._interface.ext_attrs:
-      handlers = [operation for operation in self._interface.operations
-                  if operation.id == 'handleEvent']
-      info = AnalyzeOperation(self._interface, handlers)
-      self.GenerateCallback(info)
-      return
-
-    self.StartInterface()
-    self.AddMembers(self._interface)
-    self.AddSecondaryMembers(self._interface)
-    self.FinishInterface()
-
-  def GenerateCallback(self, info):
-    pass
-
-  def AddMembers(self, interface):
-    for const in sorted(interface.constants, ConstantOutputOrder):
-      self.AddConstant(const)
-
-    for attr in sorted(interface.attributes, ConstantOutputOrder):
-      if attr.type.id != 'EventListener':
-        self.AddAttribute(attr)
-
-    # The implementation should define an indexer if the interface directly
-    # extends List.
-    (element_type, requires_indexer) = ListImplementationInfo(
-          interface, self._database)
-    if element_type:
-      if requires_indexer:
-        self.AddIndexer(element_type)
-      else:
-        self.AmendIndexer(element_type)
-    # Group overloaded operations by id
-    operationsById = {}
-    for operation in interface.operations:
-      if operation.id not in operationsById:
-        operationsById[operation.id] = []
-      operationsById[operation.id].append(operation)
-
-    # Generate operations
-    for id in sorted(operationsById.keys()):
-      operations = operationsById[id]
-      info = AnalyzeOperation(interface, operations)
-      self.AddOperation(info)
-
-  def AddSecondaryMembers(self, interface):
-    # With multiple inheritance, attributes and operations of non-first
-    # interfaces need to be added.  Sometimes the attribute or operation is
-    # defined in the current interface as well as a parent.  In that case we
-    # avoid making a duplicate definition and pray that the signatures match.
-    secondary_parents = self._TransitiveSecondaryParents(interface)
-    for parent_interface in secondary_parents:
-      if isinstance(parent_interface, str):  # IsDartCollectionType(parent_interface)
-        continue
-      for attr in sorted(parent_interface.attributes, ConstantOutputOrder):
-        if not FindMatchingAttribute(interface, attr):
-          self.AddSecondaryAttribute(parent_interface, attr)
-
-      # Group overloaded operations by id
-      operationsById = {}
-      for operation in parent_interface.operations:
-        if operation.id not in operationsById:
-          operationsById[operation.id] = []
-        operationsById[operation.id].append(operation)
-
-      # Generate operations
-      for id in sorted(operationsById.keys()):
-        if not any(op.id == id for op in interface.operations):
-          operations = operationsById[id]
-          info = AnalyzeOperation(interface, operations)
-          self.AddSecondaryOperation(parent_interface, info)
-
-  def AddConstant(self, constant):
-    pass
-
-  def AddAttribute(self, attribute):
-    pass
-
-  def AddIndexer(self, element_type):
-    pass
-
-  def AmendIndexer(self, element_type):
-    pass
-
-  def AddOperation(self, info):
-    pass
-
-  def AddSecondaryAttribute(self, interface, attribute):
-    pass
-
-  def AddSecondaryOperation(self, interface, info):
-    pass
-
-  def _TransitiveSecondaryParents(self, interface):
-    """Returns a list of all non-primary parents.
-
-    The list contains the interface objects for interfaces defined in the
-    database, and the name for undefined interfaces.
-    """
-    def walk(parents):
-      for parent in parents:
-        if IsDartCollectionType(parent.type.id):
-          result.append(parent.type.id)
-          continue
-        if self._database.HasInterface(parent.type.id):
-          parent_interface = self._database.GetInterface(parent.type.id)
-          result.append(parent_interface)
-          walk(parent_interface.parents)
-
-    result = []
-    if interface.parents:
-      parent = interface.parents[0]
-      if IsPureInterface(parent.type.id):
-        walk(interface.parents)
-      else:
-        walk(interface.parents[1:])
-    return result
-
-  def _TypeInfo(self, type_name):
-    return self._type_registry.TypeInfo(type_name)
-
-  def _DartType(self, type_name):
-    return self._type_registry.DartType(type_name)
-
-
-class GeneratorOptions(object):
-  def __init__(self, templates, database, type_registry, renamer):
-    self.templates = templates
-    self.database = database
-    self.type_registry = type_registry
-    self.renamer = renamer
-
-
-def IsReadOnly(attribute):
-  return attribute.is_read_only or 'Replaceable' in attribute.ext_attrs