Roll IDL to multivm@1329

core/scripts/make_dom_exceptions.py

-#!/usr/bin/env python
-# Copyright (C) 2013 Google Inc. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-import os.path
-import sys
-import shutil
-
-from in_file import InFile
-import name_macros
-import license
-
-
-HEADER_TEMPLATE = """%(license)s
-
-#ifndef %(class_name)s_h
-#define %(class_name)s_h
-
-namespace WebCore {
-
-typedef int ExceptionCode;
-
-enum ExceptionType {
-%(exception_types)s
-};
-
-struct ExceptionCodeDescription {
-    explicit ExceptionCodeDescription(ExceptionCode);
-
-    // |name| is the exception name, also intended for use in exception
-    // description strings; 0 if name not known; maximum length is 27
-    // characters.
-    const char* name;
-
-    // |description| is the exception description, intended for use in
-    // exception strings. It is a more readable explanation of error.
-    const char* description;
-
-    // |code| is the numeric value of the exception within a particular type.
-    int code;
-
-    ExceptionType type;
-};
-
-} // namespace WebCore
-
-#endif // %(class_name)s_h
-"""
-
-
-IMPLEMENTATION_TEMPLATE = """%(license)s
-
-#include "config.h"
-#include "%(class_name)s.h"
-
-#include "ExceptionCode.h"
-
-%(includes)s
-
-#include "modules/indexeddb/IDBDatabaseException.h"
-
-namespace WebCore {
-
-ExceptionCodeDescription::ExceptionCodeDescription(ExceptionCode ec)
-{
-    ASSERT(ec);
-
-%(description_initalizations)s
-
-    // FIXME: This special case for IDB is undesirable. It is the first usage
-    // of "new style" DOMExceptions where there is no IDL type, but there are
-    // API-specific exception names and/or messages. Consider refactoring back
-    // into the code generator when a common pattern emerges.
-    if (IDBDatabaseException::initializeDescription(ec, this))
-        return;
-
-    if (DOMCoreException::initializeDescription(ec, this))
-        return;
-
-    ASSERT_NOT_REACHED();
-}
-
-} // namespace WebCore
-"""
-
-
-class ExceptionCodeDescriptionWriter(name_macros.Writer):
-    defaults = {
-        'implementedAs': None,
-        'conditional': None,
-    }
-    default_parameters = {
-        'namespace': '',
-    }
-
-    def __init__(self, in_file_path, enabled_conditions):
-        super(ExceptionCodeDescriptionWriter, self).__init__(in_file_path, enabled_conditions)
-        self._outputs[(self.class_name + ".cpp")] = self.generate_implementation
-        self._outputs[(self.class_name + ".h")] = self.generate_header
-
-    def _exceptions(self):
-        return self.in_file.name_dictionaries
-
-    def _exception_type(self, exception):
-        return self.wrap_with_condition('    ' + self._class_name_for_entry(exception) + 'Type,', exception['conditional'])
-
-    def generate_header(self):
-        return HEADER_TEMPLATE % {
-            'license': license.license_for_generated_cpp(),
-            'class_name': self.class_name,
-            'exception_types': '\n'.join(map(self._exception_type, self._exceptions())),
-        }
-
-    def _include(self, exception):
-        include = '#include "' + self._headers_header_include_path(exception) + '"'
-        return self.wrap_with_condition(include, exception['conditional'])
-
-    def _description_initalization(self, exception):
-        name = os.path.basename(exception['name'])
-        if name == 'DOMException':
-            return ''  # DOMException needs to be last because it's a catch-all.
-        description_initalization = """    if (%(name)s::initializeDescription(ec, this))
-        return;""" % {'name': name}
-        return self.wrap_with_condition(description_initalization, exception['conditional'])
-
-    def generate_implementation(self):
-        return IMPLEMENTATION_TEMPLATE % {
-            'license': license.license_for_generated_cpp(),
-            'class_name': self.class_name,
-            'includes': '\n'.join(map(self._include, self._exceptions())),
-            'description_initalizations': '\n'.join(map(self._description_initalization, self._exceptions())),
-        }
-
-
-if __name__ == "__main__":
-    name_macros.Maker(ExceptionCodeDescriptionWriter).main(sys.argv)