| # Copyright (c) 2012 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. |
| """Utilies and constants specific to Chromium C++ code. |
| """ |
| |
| from datetime import datetime |
| from model import PropertyType |
| import os |
| |
| CHROMIUM_LICENSE = ( |
| """// Copyright (c) %d 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.""" % datetime.now().year |
| ) |
| GENERATED_FILE_MESSAGE = """// GENERATED FROM THE API DEFINITION IN |
| // %s |
| // DO NOT EDIT. |
| """ |
| GENERATED_BUNDLE_FILE_MESSAGE = """// GENERATED FROM THE API DEFINITIONS IN |
| // %s |
| // DO NOT EDIT. |
| """ |
| |
| def Classname(s): |
| """Translates a namespace name or function name into something more |
| suited to C++. |
| |
| eg experimental.downloads -> Experimental_Downloads |
| updateAll -> UpdateAll. |
| """ |
| return '_'.join([x[0].upper() + x[1:] for x in s.split('.')]) |
| |
| def GetAsFundamentalValue(prop, src, dst): |
| """Returns the C++ code for retrieving a fundamental type from a |
| Value into a variable. |
| |
| src: Value* |
| dst: Property* |
| """ |
| return { |
| PropertyType.STRING: '%s->GetAsString(%s)', |
| PropertyType.BOOLEAN: '%s->GetAsBoolean(%s)', |
| PropertyType.INTEGER: '%s->GetAsInteger(%s)', |
| PropertyType.DOUBLE: '%s->GetAsDouble(%s)', |
| }[prop.type_] % (src, dst) |
| |
| def GetValueType(type_): |
| """Returns the Value::Type corresponding to the model.PropertyType. |
| """ |
| return { |
| PropertyType.STRING: 'Value::TYPE_STRING', |
| PropertyType.INTEGER: 'Value::TYPE_INTEGER', |
| PropertyType.BOOLEAN: 'Value::TYPE_BOOLEAN', |
| PropertyType.DOUBLE: 'Value::TYPE_DOUBLE', |
| PropertyType.ENUM: 'Value::TYPE_STRING', |
| PropertyType.OBJECT: 'Value::TYPE_DICTIONARY', |
| PropertyType.FUNCTION: 'Value::TYPE_DICTIONARY', |
| PropertyType.ARRAY: 'Value::TYPE_LIST', |
| PropertyType.BINARY: 'Value::TYPE_BINARY', |
| }[type_] |
| |
| def GetParameterDeclaration(param, type_): |
| """Gets a parameter declaration of a given model.Property and its C++ |
| type. |
| """ |
| if param.type_ in (PropertyType.REF, PropertyType.OBJECT, PropertyType.ARRAY, |
| PropertyType.STRING, PropertyType.ANY): |
| arg = '%(type)s& %(name)s' |
| else: |
| arg = '%(type)s %(name)s' |
| return arg % { |
| 'type': type_, |
| 'name': param.unix_name, |
| } |
| |
| def GenerateIfndefName(path, filename): |
| """Formats a path and filename as a #define name. |
| |
| e.g chrome/extensions/gen, file.h becomes CHROME_EXTENSIONS_GEN_FILE_H__. |
| """ |
| return (('%s_%s_H__' % (path, filename)) |
| .upper().replace(os.sep, '_').replace('/', '_')) |
| |
| def GenerateTypeToCompiledTypeConversion(prop, from_, to): |
| try: |
| return _GenerateTypeConversionHelper(prop.type_, prop.compiled_type, from_, |
| to) |
| except KeyError: |
| raise NotImplementedError('Conversion from %s to %s in %s not supported' % |
| (prop.type_, prop.compiled_type, prop.name)) |
| |
| def GenerateCompiledTypeToTypeConversion(prop, from_, to): |
| try: |
| return _GenerateTypeConversionHelper(prop.compiled_type, prop.type_, from_, |
| to) |
| except KeyError: |
| raise NotImplementedError('Conversion from %s to %s in %s not supported' % |
| (prop.compiled_type, prop.type_, prop.name)) |
| |
| def _GenerateTypeConversionHelper(from_type, to_type, from_, to): |
| """Converts from PropertyType from_type to PropertyType to_type. |
| |
| from_type: The PropertyType to be converted from. |
| to_type: The PropertyType to be converted to. |
| from_: The variable name of the type to be converted from. |
| to: The variable name of the type to be converted to. |
| """ |
| # TODO(mwrosen): Add support for more from/to combinations as necessary. |
| return { |
| PropertyType.STRING: { |
| PropertyType.INTEGER: 'base::StringToInt(%(from)s, &%(to)s)', |
| PropertyType.INT64: 'base::StringToInt64(%(from)s, &%(to)s)', |
| }, |
| PropertyType.INTEGER: { |
| PropertyType.STRING: '%(to)s = base::IntToString(%(from)s)', |
| }, |
| PropertyType.INT64: { |
| PropertyType.STRING: '%(to)s = base::Int64ToString(%(from)s)', |
| } |
| }[from_type][to_type] % {'from': from_, 'to': to} |