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196 lines
8.1 KiB
Python
196 lines
8.1 KiB
Python
# Copyright (C) 2013 Google Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import os.path
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import re
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from in_generator import Maker
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import in_generator
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import license
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import name_utilities
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HEADER_TEMPLATE = """%(license)s
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#ifndef %(namespace)s%(suffix)sHeaders_h
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#define %(namespace)s%(suffix)sHeaders_h
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%(base_header_for_suffix)s
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%(includes)s
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#endif // %(namespace)s%(suffix)sHeaders_h
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"""
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INTERFACES_HEADER_TEMPLATE = """%(license)s
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#ifndef %(namespace)s%(suffix)sInterfaces_h
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#define %(namespace)s%(suffix)sInterfaces_h
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%(base_header_for_suffix)s
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%(declare_conditional_macros)s
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#define %(macro_style_name)s_INTERFACES_FOR_EACH(macro) \\
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\\
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%(unconditional_macros)s
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\\
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%(conditional_macros)s
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#endif // %(namespace)s%(suffix)sInterfaces_h
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"""
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class Writer(in_generator.Writer):
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def __init__(self, in_file_path):
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super(Writer, self).__init__(in_file_path)
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self.namespace = self.in_file.parameters['namespace'].strip('"')
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self.suffix = self.in_file.parameters['suffix'].strip('"')
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self._entries_by_conditional = {}
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self._unconditional_entries = []
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self._validate_entries()
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self._sort_entries_by_conditional()
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self._outputs = {(self.namespace + self.suffix + "Headers.h"): self.generate_headers_header,
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(self.namespace + self.suffix + "Interfaces.h"): self.generate_interfaces_header,
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}
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def _validate_entries(self):
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# If there is more than one entry with the same script name, only the first one will ever
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# be hit in practice, and so we'll silently ignore any properties requested for the second
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# (like RuntimeEnabled - see crbug.com/332588).
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entries_by_script_name = dict()
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for entry in self.in_file.name_dictionaries:
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script_name = name_utilities.script_name(entry)
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if script_name in entries_by_script_name:
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self._fatal('Multiple entries with script_name=%(script_name)s: %(name1)s %(name2)s' % {
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'script_name': script_name,
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'name1': entry['name'],
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'name2': entries_by_script_name[script_name]['name']})
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entries_by_script_name[script_name] = entry
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def _fatal(self, message):
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print 'FATAL ERROR: ' + message
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exit(1)
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def _sort_entries_by_conditional(self):
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unconditional_names = set()
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for entry in self.in_file.name_dictionaries:
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conditional = entry['Conditional']
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if not conditional:
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cpp_name = name_utilities.cpp_name(entry)
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if cpp_name in unconditional_names:
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continue
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unconditional_names.add(cpp_name)
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self._unconditional_entries.append(entry)
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continue
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for entry in self.in_file.name_dictionaries:
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cpp_name = name_utilities.cpp_name(entry)
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if cpp_name in unconditional_names:
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continue
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conditional = entry['Conditional']
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if not conditional in self._entries_by_conditional:
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self._entries_by_conditional[conditional] = []
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self._entries_by_conditional[conditional].append(entry)
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def _headers_header_include_path(self, entry):
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if entry['ImplementedAs']:
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path = os.path.dirname(entry['name'])
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if len(path):
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path += '/'
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path += entry['ImplementedAs']
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else:
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path = entry['name']
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return path + '.h'
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def _headers_header_includes(self, entries):
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includes = dict()
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for entry in entries:
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cpp_name = name_utilities.cpp_name(entry)
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# Avoid duplicate includes.
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if cpp_name in includes:
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continue
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include = '#include "%(path)s"\n' % {
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'path': self._headers_header_include_path(entry),
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}
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includes[cpp_name] = self.wrap_with_condition(include, entry['Conditional'])
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return includes.values()
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def generate_headers_header(self):
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base_header_for_suffix = ''
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if self.suffix:
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base_header_for_suffix = '\n#include "core/%(namespace)sHeaders.h"\n' % {'namespace': self.namespace}
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return HEADER_TEMPLATE % {
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'license': license.license_for_generated_cpp(),
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'namespace': self.namespace,
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'suffix': self.suffix,
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'base_header_for_suffix': base_header_for_suffix,
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'includes': '\n'.join(self._headers_header_includes(self.in_file.name_dictionaries)),
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}
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def _declare_one_conditional_macro(self, conditional, entries):
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macro_name = '%(macro_style_name)s_INTERFACES_FOR_EACH_%(conditional)s' % {
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'macro_style_name': name_utilities.to_macro_style(self.namespace + self.suffix),
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'conditional': conditional,
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}
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return self.wrap_with_condition("""#define %(macro_name)s(macro) \\
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%(declarations)s
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#else
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#define %(macro_name)s(macro)""" % {
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'macro_name': macro_name,
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'declarations': '\n'.join(sorted(set([
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' macro(%(cpp_name)s) \\' % {'cpp_name': name_utilities.cpp_name(entry)}
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for entry in entries]))),
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}, conditional)
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def _declare_conditional_macros(self):
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return '\n'.join([
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self._declare_one_conditional_macro(conditional, entries)
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for conditional, entries in self._entries_by_conditional.items()])
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def _unconditional_macro(self, entry):
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return ' macro(%(cpp_name)s) \\' % {'cpp_name': name_utilities.cpp_name(entry)}
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def _conditional_macros(self, conditional):
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return ' %(macro_style_name)s_INTERFACES_FOR_EACH_%(conditional)s(macro) \\' % {
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'macro_style_name': name_utilities.to_macro_style(self.namespace + self.suffix),
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'conditional': conditional,
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}
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def generate_interfaces_header(self):
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base_header_for_suffix = ''
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if self.suffix:
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base_header_for_suffix = '\n#include "core/%(namespace)sInterfaces.h"\n' % {'namespace': self.namespace}
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return INTERFACES_HEADER_TEMPLATE % {
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'license': license.license_for_generated_cpp(),
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'namespace': self.namespace,
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'suffix': self.suffix,
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'base_header_for_suffix': base_header_for_suffix,
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'macro_style_name': name_utilities.to_macro_style(self.namespace + self.suffix),
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'declare_conditional_macros': self._declare_conditional_macros(),
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'unconditional_macros': '\n'.join(sorted(set(map(self._unconditional_macro, self._unconditional_entries)))),
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'conditional_macros': '\n'.join(map(self._conditional_macros, self._entries_by_conditional.keys())),
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}
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