Mojo: Move mojo/public/bindings to mojo/public/tools/bindings.

mojo/public/bindings/pylib/generate/mojom_generator.py

-# Copyright 2013 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.
-
-"""Code shared by the various language-specific code generators."""
-
-import os
-import mojom
-import mojom_pack
-import re
-from functools import partial
-
-def GetStructFromMethod(interface, method):
-  """Converts a method's parameters into the fields of a struct."""
-  params_class = "%s_%s_Params" % (interface.name, method.name)
-  struct = mojom.Struct(params_class)
-  for param in method.parameters:
-    struct.AddField(param.name, param.kind, param.ordinal)
-  struct.packed = mojom_pack.PackedStruct(struct)
-  return struct
-
-def GetResponseStructFromMethod(interface, method):
-  """Converts a method's response_parameters into the fields of a struct."""
-  params_class = "%s_%s_ResponseParams" % (interface.name, method.name)
-  struct = mojom.Struct(params_class)
-  for param in method.response_parameters:
-    struct.AddField(param.name, param.kind, param.ordinal)
-  struct.packed = mojom_pack.PackedStruct(struct)
-  return struct
-
-def GetStructInfo(exported, struct):
-  struct.packed = mojom_pack.PackedStruct(struct)
-  struct.bytes = mojom_pack.GetByteLayout(struct.packed)
-  struct.exported = exported
-  return struct
-
-def IsStringKind(kind):
-  return kind.spec == 's'
-
-def IsEnumKind(kind):
-  return isinstance(kind, mojom.Enum)
-
-def IsObjectKind(kind):
-  return isinstance(kind, (mojom.Struct, mojom.Array)) or IsStringKind(kind)
-
-def IsHandleKind(kind):
-  return kind.spec.startswith('h') or isinstance(kind, mojom.Interface)
-
-def StudlyCapsToCamel(studly):
-  return studly[0].lower() + studly[1:]
-
-def VerifyTokenType(token, expected):
-  """Used to check that arrays and objects are used correctly as default
-  values. Arrays are tokens that look like ('ARRAY', element0, element1...).
-  See mojom_parser.py for their representation.
-  """
-  if not isinstance(token, tuple):
-    raise Exception("Expected token type '%s'. Invalid token '%s'." %
-        (expected, token))
-  if token[0] != expected:
-    raise Exception("Expected token type '%s'. Got '%s'." %
-        (expected, token[0]))
-
-def ExpressionMapper(expression, mapper):
-  if isinstance(expression, tuple) and expression[0] == 'EXPRESSION':
-    result = []
-    for each in expression[1]:
-      result.extend(ExpressionMapper(each, mapper))
-    return result
-  return [mapper(expression)]
-
-class Generator(object):
-  # Pass |output_dir| to emit files to disk. Omit |output_dir| to echo all
-  # files to stdout.
-  def __init__(self, module, output_dir=None):
-    self.module = module
-    self.output_dir = output_dir
-
-  def GetStructsFromMethods(self):
-    result = []
-    for interface in self.module.interfaces:
-      for method in interface.methods:
-        result.append(GetStructFromMethod(interface, method))
-        if method.response_parameters != None:
-          result.append(GetResponseStructFromMethod(interface, method))
-    return map(partial(GetStructInfo, False), result)
-
-  def GetStructs(self):
-    return map(partial(GetStructInfo, True), self.module.structs)
-
-  def Write(self, contents, filename):
-    if self.output_dir is None:
-      print contents
-      return
-    with open(os.path.join(self.output_dir, filename), "w+") as f:
-      f.write(contents)
-
-  def GenerateFiles(self):
-    raise NotImplementedError("Subclasses must override/implement this method")