292 lines
11 KiB
Python
292 lines
11 KiB
Python
# 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.
|
|
|
|
import code
|
|
import cpp_util
|
|
from model import Platforms
|
|
from schema_util import CapitalizeFirstLetter
|
|
from schema_util import JsFunctionNameToClassName
|
|
|
|
import json
|
|
import os
|
|
import re
|
|
|
|
# TODO(miket/asargent) - parameterize this.
|
|
SOURCE_BASE_PATH = 'chrome/common/extensions/api'
|
|
|
|
def _RemoveDescriptions(node):
|
|
"""Returns a copy of |schema| with "description" fields removed.
|
|
"""
|
|
if isinstance(node, dict):
|
|
result = {}
|
|
for key, value in node.items():
|
|
# Some schemas actually have properties called "description", so only
|
|
# remove descriptions that have string values.
|
|
if key == 'description' and isinstance(value, basestring):
|
|
continue
|
|
result[key] = _RemoveDescriptions(value)
|
|
return result
|
|
if isinstance(node, list):
|
|
return [_RemoveDescriptions(v) for v in node]
|
|
return node
|
|
|
|
class CppBundleGenerator(object):
|
|
"""This class contains methods to generate code based on multiple schemas.
|
|
"""
|
|
|
|
def __init__(self, root, model, api_defs, cpp_type_generator, cpp_namespace):
|
|
self._root = root;
|
|
self._model = model
|
|
self._api_defs = api_defs
|
|
self._cpp_type_generator = cpp_type_generator
|
|
self._cpp_namespace = cpp_namespace
|
|
|
|
self.api_cc_generator = _APICCGenerator(self)
|
|
self.api_h_generator = _APIHGenerator(self)
|
|
self.schemas_cc_generator = _SchemasCCGenerator(self)
|
|
self.schemas_h_generator = _SchemasHGenerator(self)
|
|
|
|
def _GenerateHeader(self, file_base, body_code):
|
|
"""Generates a code.Code object for a header file
|
|
|
|
Parameters:
|
|
- |file_base| - the base of the filename, e.g. 'foo' (for 'foo.h')
|
|
- |body_code| - the code to put in between the multiple inclusion guards"""
|
|
c = code.Code()
|
|
c.Append(cpp_util.CHROMIUM_LICENSE)
|
|
c.Append()
|
|
c.Append(cpp_util.GENERATED_BUNDLE_FILE_MESSAGE % SOURCE_BASE_PATH)
|
|
ifndef_name = cpp_util.GenerateIfndefName(SOURCE_BASE_PATH, file_base)
|
|
c.Append()
|
|
c.Append('#ifndef %s' % ifndef_name)
|
|
c.Append('#define %s' % ifndef_name)
|
|
c.Append()
|
|
c.Concat(body_code)
|
|
c.Append()
|
|
c.Append('#endif // %s' % ifndef_name)
|
|
c.Append()
|
|
return c
|
|
|
|
def _GetPlatformIfdefs(self, model_object):
|
|
"""Generates the "defined" conditional for an #if check if |model_object|
|
|
has platform restrictions. Returns None if there are no restrictions.
|
|
"""
|
|
if model_object.platforms is None:
|
|
return None
|
|
ifdefs = []
|
|
for platform in model_object.platforms:
|
|
if platform == Platforms.CHROMEOS:
|
|
ifdefs.append('defined(OS_CHROMEOS)')
|
|
else:
|
|
raise ValueError("Unsupported platform ifdef: %s" % platform.name)
|
|
return ' and '.join(ifdefs)
|
|
|
|
def _GenerateRegisterFunctions(self, namespace_name, function):
|
|
c = code.Code()
|
|
function_ifdefs = self._GetPlatformIfdefs(function)
|
|
if function_ifdefs is not None:
|
|
c.Append("#if %s" % function_ifdefs, indent_level=0)
|
|
|
|
function_name = JsFunctionNameToClassName(namespace_name, function.name)
|
|
c.Append("registry->RegisterFunction<%sFunction>();" % (
|
|
function_name))
|
|
|
|
if function_ifdefs is not None:
|
|
c.Append("#endif // %s" % function_ifdefs, indent_level=0)
|
|
return c
|
|
|
|
def _GenerateFunctionRegistryRegisterAll(self):
|
|
c = code.Code()
|
|
c.Append('// static')
|
|
c.Sblock('void GeneratedFunctionRegistry::RegisterAll('
|
|
'ExtensionFunctionRegistry* registry) {')
|
|
for namespace in self._model.namespaces.values():
|
|
namespace_ifdefs = self._GetPlatformIfdefs(namespace)
|
|
if namespace_ifdefs is not None:
|
|
c.Append("#if %s" % namespace_ifdefs, indent_level=0)
|
|
|
|
namespace_name = CapitalizeFirstLetter(namespace.name.replace(
|
|
"experimental.", ""))
|
|
for function in namespace.functions.values():
|
|
if function.nocompile:
|
|
continue
|
|
c.Concat(self._GenerateRegisterFunctions(namespace.name, function))
|
|
|
|
for type_ in namespace.types.values():
|
|
for function in type_.functions.values():
|
|
if function.nocompile:
|
|
continue
|
|
namespace_types_name = JsFunctionNameToClassName(
|
|
namespace.name, type_.name)
|
|
c.Concat(self._GenerateRegisterFunctions(namespace_types_name,
|
|
function))
|
|
|
|
if namespace_ifdefs is not None:
|
|
c.Append("#endif // %s" % namespace_ifdefs, indent_level=0)
|
|
c.Eblock("}")
|
|
return c
|
|
|
|
class _APIHGenerator(object):
|
|
"""Generates the header for API registration / declaration"""
|
|
def __init__(self, cpp_bundle):
|
|
self._bundle = cpp_bundle
|
|
|
|
def Generate(self, namespace):
|
|
c = code.Code()
|
|
|
|
c.Append('#include <string>')
|
|
c.Append()
|
|
c.Append('#include "base/basictypes.h"')
|
|
c.Append()
|
|
c.Append("class ExtensionFunctionRegistry;")
|
|
c.Append()
|
|
c.Concat(cpp_util.OpenNamespace(self._bundle._cpp_namespace))
|
|
c.Append()
|
|
c.Append('class GeneratedFunctionRegistry {')
|
|
c.Sblock(' public:')
|
|
c.Append('static void RegisterAll('
|
|
'ExtensionFunctionRegistry* registry);')
|
|
c.Eblock('};');
|
|
c.Append()
|
|
c.Concat(cpp_util.CloseNamespace(self._bundle._cpp_namespace))
|
|
return self._bundle._GenerateHeader('generated_api', c)
|
|
|
|
class _APICCGenerator(object):
|
|
"""Generates a code.Code object for the generated API .cc file"""
|
|
|
|
def __init__(self, cpp_bundle):
|
|
self._bundle = cpp_bundle
|
|
|
|
def Generate(self, namespace):
|
|
c = code.Code()
|
|
c.Append(cpp_util.CHROMIUM_LICENSE)
|
|
c.Append()
|
|
c.Append('#include "%s"' % (os.path.join(SOURCE_BASE_PATH,
|
|
'generated_api.h')))
|
|
c.Append()
|
|
for namespace in self._bundle._model.namespaces.values():
|
|
namespace_name = namespace.unix_name.replace("experimental_", "")
|
|
implementation_header = namespace.compiler_options.get(
|
|
"implemented_in",
|
|
"chrome/browser/extensions/api/%s/%s_api.h" % (namespace_name,
|
|
namespace_name))
|
|
if not os.path.exists(
|
|
os.path.join(self._bundle._root,
|
|
os.path.normpath(implementation_header))):
|
|
if "implemented_in" in namespace.compiler_options:
|
|
raise ValueError('Header file for namespace "%s" specified in '
|
|
'compiler_options not found: %s' %
|
|
(namespace.unix_name, implementation_header))
|
|
continue
|
|
ifdefs = self._bundle._GetPlatformIfdefs(namespace)
|
|
if ifdefs is not None:
|
|
c.Append("#if %s" % ifdefs, indent_level=0)
|
|
|
|
c.Append('#include "%s"' % implementation_header)
|
|
|
|
if ifdefs is not None:
|
|
c.Append("#endif // %s" % ifdefs, indent_level=0)
|
|
c.Append()
|
|
c.Append('#include '
|
|
'"chrome/browser/extensions/extension_function_registry.h"')
|
|
c.Append()
|
|
c.Concat(cpp_util.OpenNamespace(self._bundle._cpp_namespace))
|
|
c.Append()
|
|
c.Concat(self._bundle._GenerateFunctionRegistryRegisterAll())
|
|
c.Append()
|
|
c.Concat(cpp_util.CloseNamespace(self._bundle._cpp_namespace))
|
|
c.Append()
|
|
return c
|
|
|
|
class _SchemasHGenerator(object):
|
|
"""Generates a code.Code object for the generated schemas .h file"""
|
|
def __init__(self, cpp_bundle):
|
|
self._bundle = cpp_bundle
|
|
|
|
def Generate(self, namespace):
|
|
c = code.Code()
|
|
c.Append('#include <map>')
|
|
c.Append('#include <string>')
|
|
c.Append();
|
|
c.Append('#include "base/strings/string_piece.h"')
|
|
c.Append()
|
|
c.Concat(cpp_util.OpenNamespace(self._bundle._cpp_namespace))
|
|
c.Append()
|
|
c.Append('class GeneratedSchemas {')
|
|
c.Sblock(' public:')
|
|
c.Append('// Determines if schema named |name| is generated.')
|
|
c.Append('static bool IsGenerated(std::string name);')
|
|
c.Append()
|
|
c.Append('// Gets the API schema named |name|.')
|
|
c.Append('static base::StringPiece Get(const std::string& name);')
|
|
c.Eblock('};');
|
|
c.Append()
|
|
c.Concat(cpp_util.CloseNamespace(self._bundle._cpp_namespace))
|
|
return self._bundle._GenerateHeader('generated_schemas', c)
|
|
|
|
def _FormatNameAsConstant(name):
|
|
"""Formats a name to be a C++ constant of the form kConstantName"""
|
|
name = '%s%s' % (name[0].upper(), name[1:])
|
|
return 'k%s' % re.sub('_[a-z]',
|
|
lambda m: m.group(0)[1].upper(),
|
|
name.replace('.', '_'))
|
|
|
|
class _SchemasCCGenerator(object):
|
|
"""Generates a code.Code object for the generated schemas .cc file"""
|
|
|
|
def __init__(self, cpp_bundle):
|
|
self._bundle = cpp_bundle
|
|
|
|
def Generate(self, namespace):
|
|
c = code.Code()
|
|
c.Append(cpp_util.CHROMIUM_LICENSE)
|
|
c.Append()
|
|
c.Append('#include "%s"' % (os.path.join(SOURCE_BASE_PATH,
|
|
'generated_schemas.h')))
|
|
c.Append()
|
|
c.Append('#include "base/lazy_instance.h"')
|
|
c.Append()
|
|
c.Append('namespace {')
|
|
for api in self._bundle._api_defs:
|
|
namespace = self._bundle._model.namespaces[api.get('namespace')]
|
|
# JSON parsing code expects lists of schemas, so dump a singleton list.
|
|
json_content = json.dumps([_RemoveDescriptions(api)],
|
|
separators=(',', ':'))
|
|
# Escape all double-quotes and backslashes. For this to output a valid
|
|
# JSON C string, we need to escape \ and ".
|
|
json_content = json_content.replace('\\', '\\\\').replace('"', '\\"')
|
|
c.Append('const char %s[] = "%s";' %
|
|
(_FormatNameAsConstant(namespace.name), json_content))
|
|
c.Append('}')
|
|
c.Concat(cpp_util.OpenNamespace(self._bundle._cpp_namespace))
|
|
c.Append()
|
|
c.Sblock('struct Static {')
|
|
c.Sblock('Static() {')
|
|
for api in self._bundle._api_defs:
|
|
namespace = self._bundle._model.namespaces[api.get('namespace')]
|
|
c.Append('schemas["%s"] = %s;' % (namespace.name,
|
|
_FormatNameAsConstant(namespace.name)))
|
|
c.Eblock('}');
|
|
c.Append()
|
|
c.Append('std::map<std::string, const char*> schemas;')
|
|
c.Eblock('};');
|
|
c.Append()
|
|
c.Append('base::LazyInstance<Static> g_lazy_instance;')
|
|
c.Append()
|
|
c.Append('// static')
|
|
c.Sblock('base::StringPiece GeneratedSchemas::Get('
|
|
'const std::string& name) {')
|
|
c.Append('return IsGenerated(name) ? '
|
|
'g_lazy_instance.Get().schemas[name] : "";')
|
|
c.Eblock('}')
|
|
c.Append()
|
|
c.Append('// static')
|
|
c.Sblock('bool GeneratedSchemas::IsGenerated(std::string name) {')
|
|
c.Append('return g_lazy_instance.Get().schemas.count(name) > 0;')
|
|
c.Eblock('}')
|
|
c.Append()
|
|
c.Concat(cpp_util.CloseNamespace(self._bundle._cpp_namespace))
|
|
c.Append()
|
|
return c
|