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# 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 re
from in_generator import Maker
import in_generator
import license
import name_utilities
HEADER_TEMPLATE = """%(license)s
#ifndef %(namespace)sHeaders_h
#define %(namespace)sHeaders_h
%(includes)s
#endif // %(namespace)sHeaders_h
"""
INTERFACES_HEADER_TEMPLATE = """%(license)s
#ifndef %(namespace)sInterfaces_h
#define %(namespace)sInterfaces_h
%(declare_conditional_macros)s
#define %(macro_style_name)s_INTERFACES_FOR_EACH(macro) \\
\\
%(unconditional_macros)s
\\
%(conditional_macros)s
#endif // %(namespace)sInterfaces_h
"""
class Writer(in_generator.Writer):
def __init__(self, in_file_path):
super(Writer, self).__init__(in_file_path)
self.namespace = self.in_file.parameters['namespace'].strip('"')
self._entries_by_conditional = {}
self._unconditional_entries = []
self._validate_entries()
self._sort_entries_by_conditional()
self._outputs = {(self.namespace + "Headers.h"): self.generate_headers_header,
(self.namespace + "Interfaces.h"): self.generate_interfaces_header,
}
def _validate_entries(self):
# If there is more than one entry with the same script name, only the first one will ever
# be hit in practice, and so we'll silently ignore any properties requested for the second
# (like RuntimeEnabled - see crbug.com/332588).
entries_by_script_name = dict()
for entry in self.in_file.name_dictionaries:
script_name = name_utilities.script_name(entry)
if script_name in entries_by_script_name:
self._fatal('Multiple entries with script_name=%(script_name)s: %(name1)s %(name2)s' % {
'script_name': script_name,
'name1': entry['name'],
'name2': entries_by_script_name[script_name]['name']})
entries_by_script_name[script_name] = entry
def _fatal(self, message):
print 'FATAL ERROR: ' + message
exit(1)
def _sort_entries_by_conditional(self):
unconditional_names = set()
for entry in self.in_file.name_dictionaries:
conditional = entry['Conditional']
if not conditional:
cpp_name = name_utilities.cpp_name(entry)
if cpp_name in unconditional_names:
continue
unconditional_names.add(cpp_name)
self._unconditional_entries.append(entry)
continue
for entry in self.in_file.name_dictionaries:
cpp_name = name_utilities.cpp_name(entry)
if cpp_name in unconditional_names:
continue
conditional = entry['Conditional']
if not conditional in self._entries_by_conditional:
self._entries_by_conditional[conditional] = []
self._entries_by_conditional[conditional].append(entry)
def _headers_header_include_path(self, entry):
if entry['ImplementedAs']:
path = os.path.dirname(entry['name'])
if len(path):
path += '/'
path += entry['ImplementedAs']
else:
path = entry['name']
return path + '.h'
def _headers_header_includes(self, entries):
includes = dict()
for entry in entries:
cpp_name = name_utilities.cpp_name(entry)
# Avoid duplicate includes.
if cpp_name in includes:
continue
include = '#include "%(path)s"\n#include "V8%(script_name)s.h"' % {
'path': self._headers_header_include_path(entry),
'script_name': name_utilities.script_name(entry),
}
includes[cpp_name] = self.wrap_with_condition(include, entry['Conditional'])
return includes.values()
def generate_headers_header(self):
return HEADER_TEMPLATE % {
'license': license.license_for_generated_cpp(),
'namespace': self.namespace,
'includes': '\n'.join(self._headers_header_includes(self.in_file.name_dictionaries)),
}
def _declare_one_conditional_macro(self, conditional, entries):
macro_name = '%(macro_style_name)s_INTERFACES_FOR_EACH_%(conditional)s' % {
'macro_style_name': name_utilities.to_macro_style(self.namespace),
'conditional': conditional,
}
return self.wrap_with_condition("""#define %(macro_name)s(macro) \\
%(declarations)s
#else
#define %(macro_name)s(macro)""" % {
'macro_name': macro_name,
'declarations': '\n'.join(sorted(set([
' macro(%(cpp_name)s) \\' % {'cpp_name': name_utilities.cpp_name(entry)}
for entry in entries]))),
}, conditional)
def _declare_conditional_macros(self):
return '\n'.join([
self._declare_one_conditional_macro(conditional, entries)
for conditional, entries in self._entries_by_conditional.items()])
def _unconditional_macro(self, entry):
return ' macro(%(cpp_name)s) \\' % {'cpp_name': name_utilities.cpp_name(entry)}
def _conditional_macros(self, conditional):
return ' %(macro_style_name)s_INTERFACES_FOR_EACH_%(conditional)s(macro) \\' % {
'macro_style_name': name_utilities.to_macro_style(self.namespace),
'conditional': conditional,
}
def generate_interfaces_header(self):
return INTERFACES_HEADER_TEMPLATE % {
'license': license.license_for_generated_cpp(),
'namespace': self.namespace,
'macro_style_name': name_utilities.to_macro_style(self.namespace),
'declare_conditional_macros': self._declare_conditional_macros(),
'unconditional_macros': '\n'.join(sorted(set(map(self._unconditional_macro, self._unconditional_entries)))),
'conditional_macros': '\n'.join(map(self._conditional_macros, self._entries_by_conditional.keys())),
}
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