114 lines
3.5 KiB
Python
114 lines
3.5 KiB
Python
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# Copyright (c) 2012 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Utilies and constants specific to Chromium C++ code.
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"""
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from code import Code
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from datetime import datetime
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from model import Property, PropertyType, Type
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import os
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import re
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CHROMIUM_LICENSE = (
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"""// Copyright (c) %d The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.""" % datetime.now().year
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)
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GENERATED_FILE_MESSAGE = """// GENERATED FROM THE API DEFINITION IN
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// %s
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// DO NOT EDIT.
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"""
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GENERATED_BUNDLE_FILE_MESSAGE = """// GENERATED FROM THE API DEFINITIONS IN
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// %s
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// DO NOT EDIT.
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"""
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def Classname(s):
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"""Translates a namespace name or function name into something more
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suited to C++.
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eg experimental.downloads -> Experimental_Downloads
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updateAll -> UpdateAll.
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"""
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return '_'.join([x[0].upper() + x[1:] for x in re.split('\W', s)])
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def GetAsFundamentalValue(type_, src, dst):
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"""Returns the C++ code for retrieving a fundamental type from a
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Value into a variable.
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src: Value*
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dst: Property*
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"""
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return {
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PropertyType.BOOLEAN: '%s->GetAsBoolean(%s)',
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PropertyType.DOUBLE: '%s->GetAsDouble(%s)',
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PropertyType.INTEGER: '%s->GetAsInteger(%s)',
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PropertyType.STRING: '%s->GetAsString(%s)',
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}[type_.property_type] % (src, dst)
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def GetValueType(type_):
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"""Returns the Value::Type corresponding to the model.Type.
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"""
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return {
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PropertyType.ARRAY: 'base::Value::TYPE_LIST',
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PropertyType.BINARY: 'base::Value::TYPE_BINARY',
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PropertyType.BOOLEAN: 'base::Value::TYPE_BOOLEAN',
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# PropertyType.CHOICES can be any combination of types.
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PropertyType.DOUBLE: 'base::Value::TYPE_DOUBLE',
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PropertyType.ENUM: 'base::Value::TYPE_STRING',
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PropertyType.FUNCTION: 'base::Value::TYPE_DICTIONARY',
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PropertyType.INTEGER: 'base::Value::TYPE_INTEGER',
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PropertyType.OBJECT: 'base::Value::TYPE_DICTIONARY',
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PropertyType.STRING: 'base::Value::TYPE_STRING',
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}[type_.property_type]
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def GetParameterDeclaration(param, type_):
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"""Gets a parameter declaration of a given model.Property and its C++
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type.
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"""
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if param.type_.property_type in (PropertyType.ANY,
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PropertyType.ARRAY,
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PropertyType.CHOICES,
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PropertyType.OBJECT,
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PropertyType.REF,
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PropertyType.STRING):
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arg = 'const %(type)s& %(name)s'
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else:
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arg = '%(type)s %(name)s'
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return arg % {
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'type': type_,
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'name': param.unix_name,
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}
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def GenerateIfndefName(path, filename):
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"""Formats a path and filename as a #define name.
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e.g chrome/extensions/gen, file.h becomes CHROME_EXTENSIONS_GEN_FILE_H__.
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"""
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return (('%s_%s_H__' % (path, filename))
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.upper().replace(os.sep, '_').replace('/', '_'))
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def PadForGenerics(var):
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"""Appends a space to |var| if it ends with a >, so that it can be compiled
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within generic types.
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"""
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return ('%s ' % var) if var.endswith('>') else var
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def OpenNamespace(namespace):
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"""Get opening root namespace declarations.
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"""
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c = Code()
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for component in namespace.split('::'):
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c.Append('namespace %s {' % component)
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return c
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def CloseNamespace(namespace):
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"""Get closing root namespace declarations.
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"""
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c = Code()
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for component in reversed(namespace.split('::')):
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c.Append('} // namespace %s' % component)
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return c
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