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| 1 # Copyright (C) 2013 Google Inc. All rights reserved. |  | 
| 2 # |  | 
| 3 # Redistribution and use in source and binary forms, with or without |  | 
| 4 # modification, are permitted provided that the following conditions are |  | 
| 5 # met: |  | 
| 6 # |  | 
| 7 #     * Redistributions of source code must retain the above copyright |  | 
| 8 # notice, this list of conditions and the following disclaimer. |  | 
| 9 #     * Redistributions in binary form must reproduce the above |  | 
| 10 # copyright notice, this list of conditions and the following disclaimer |  | 
| 11 # in the documentation and/or other materials provided with the |  | 
| 12 # distribution. |  | 
| 13 #     * Neither the name of Google Inc. nor the names of its |  | 
| 14 # contributors may be used to endorse or promote products derived from |  | 
| 15 # this software without specific prior written permission. |  | 
| 16 # |  | 
| 17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |  | 
| 18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |  | 
| 19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |  | 
| 20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |  | 
| 21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |  | 
| 22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |  | 
| 23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |  | 
| 24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |  | 
| 25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |  | 
| 26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |  | 
| 27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |  | 
| 28 |  | 
| 29 import os.path |  | 
| 30 import re |  | 
| 31 |  | 
| 32 import in_generator |  | 
| 33 from in_generator import Maker |  | 
| 34 import license |  | 
| 35 |  | 
| 36 |  | 
| 37 HEADER_TEMPLATE = """%(license)s |  | 
| 38 |  | 
| 39 #ifndef %(class_name)sHeaders_h |  | 
| 40 #define %(class_name)sHeaders_h |  | 
| 41 |  | 
| 42 %(includes)s |  | 
| 43 |  | 
| 44 #endif // %(class_name)sHeaders_h |  | 
| 45 """ |  | 
| 46 |  | 
| 47 |  | 
| 48 INTERFACES_HEADER_TEMPLATE = """%(license)s |  | 
| 49 |  | 
| 50 #ifndef %(class_name)sInterfaces_h |  | 
| 51 #define %(class_name)sInterfaces_h |  | 
| 52 |  | 
| 53 %(declare_conditional_macros)s |  | 
| 54 |  | 
| 55 #define %(macro_style_name)s_INTERFACES_FOR_EACH(macro) \\ |  | 
| 56     \\ |  | 
| 57 %(unconditional_macros)s |  | 
| 58     \\ |  | 
| 59 %(conditional_macros)s |  | 
| 60 |  | 
| 61 #endif // %(class_name)sInterfaces_h |  | 
| 62 """ |  | 
| 63 |  | 
| 64 |  | 
| 65 def _to_macro_style(name): |  | 
| 66     s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name) |  | 
| 67     return re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).upper() |  | 
| 68 |  | 
| 69 |  | 
| 70 class Writer(in_generator.Writer): |  | 
| 71     def __init__(self, in_file_path, enabled_conditions): |  | 
| 72         super(Writer, self).__init__(in_file_path, enabled_conditions) |  | 
| 73         self.class_name = self.in_file.parameters['namespace'].strip('"') |  | 
| 74         self._entries_by_conditional = {} |  | 
| 75         self._unconditional_entries = [] |  | 
| 76         self._sort_entries_by_conditional() |  | 
| 77         self._outputs = {(self.class_name + "Headers.h"): self.generate_headers_
     header, |  | 
| 78                          (self.class_name + "Interfaces.h"): self.generate_inter
     faces_header, |  | 
| 79                         } |  | 
| 80 |  | 
| 81     def _sort_entries_by_conditional(self): |  | 
| 82         unconditional_names = set() |  | 
| 83         for entry in self.in_file.name_dictionaries: |  | 
| 84             conditional = entry['Conditional'] |  | 
| 85             if not conditional: |  | 
| 86                 name = self._class_name_for_entry(entry) |  | 
| 87                 if name in unconditional_names: |  | 
| 88                     continue |  | 
| 89                 unconditional_names.add(name) |  | 
| 90                 self._unconditional_entries.append(entry) |  | 
| 91                 continue |  | 
| 92         for entry in self.in_file.name_dictionaries: |  | 
| 93             name = self._class_name_for_entry(entry) |  | 
| 94             if name in unconditional_names: |  | 
| 95                 continue |  | 
| 96             conditional = entry['Conditional'] |  | 
| 97             if not conditional in self._entries_by_conditional: |  | 
| 98                 self._entries_by_conditional[conditional] = [] |  | 
| 99             self._entries_by_conditional[conditional].append(entry) |  | 
| 100 |  | 
| 101     def _class_name_for_entry(self, entry): |  | 
| 102         if entry['ImplementedAs']: |  | 
| 103             return entry['ImplementedAs'] |  | 
| 104         return os.path.basename(entry['name']) |  | 
| 105 |  | 
| 106     def _headers_header_include_path(self, entry): |  | 
| 107         if entry['ImplementedAs']: |  | 
| 108             path = os.path.dirname(entry['name']) |  | 
| 109             if len(path): |  | 
| 110                 path += '/' |  | 
| 111             path += entry['ImplementedAs'] |  | 
| 112         else: |  | 
| 113             path = entry['name'] |  | 
| 114         return path + '.h' |  | 
| 115 |  | 
| 116     def _headers_header_includes(self, entries): |  | 
| 117         includes = dict() |  | 
| 118         for entry in entries: |  | 
| 119             class_name = self._class_name_for_entry(entry) |  | 
| 120             # Avoid duplicate includes. |  | 
| 121             if class_name in includes: |  | 
| 122                 continue |  | 
| 123             include = '#include "%(path)s"\n#include "V8%(js_name)s.h"' % { |  | 
| 124                 'path': self._headers_header_include_path(entry), |  | 
| 125                 'js_name': os.path.basename(entry['name']), |  | 
| 126             } |  | 
| 127             includes[class_name] = self.wrap_with_condition(include, entry['Cond
     itional']) |  | 
| 128         return includes.values() |  | 
| 129 |  | 
| 130     def generate_headers_header(self): |  | 
| 131         return HEADER_TEMPLATE % { |  | 
| 132             'license': license.license_for_generated_cpp(), |  | 
| 133             'class_name': self.class_name, |  | 
| 134             'includes': '\n'.join(self._headers_header_includes(self.in_file.nam
     e_dictionaries)), |  | 
| 135         } |  | 
| 136 |  | 
| 137     def _declare_one_conditional_macro(self, conditional, entries): |  | 
| 138         macro_name = '%(macro_style_name)s_INTERFACES_FOR_EACH_%(conditional)s' 
     % { |  | 
| 139             'macro_style_name': _to_macro_style(self.class_name), |  | 
| 140             'conditional': conditional, |  | 
| 141         } |  | 
| 142         return self.wrap_with_condition("""#define %(macro_name)s(macro) \\ |  | 
| 143 %(declarations)s |  | 
| 144 |  | 
| 145 #else |  | 
| 146 #define %(macro_name)s(macro)""" % { |  | 
| 147             'macro_name': macro_name, |  | 
| 148             'declarations': '\n'.join(sorted(set([ |  | 
| 149                 '    macro(%(name)s) \\' % {'name': self._class_name_for_entry(e
     ntry)} |  | 
| 150                 for entry in entries]))), |  | 
| 151         }, conditional) |  | 
| 152 |  | 
| 153     def _declare_conditional_macros(self): |  | 
| 154         return '\n'.join([ |  | 
| 155             self._declare_one_conditional_macro(conditional, entries) |  | 
| 156             for conditional, entries in self._entries_by_conditional.items()]) |  | 
| 157 |  | 
| 158     def _unconditional_macro(self, entry): |  | 
| 159         return '    macro(%(name)s) \\' % {'name': self._class_name_for_entry(en
     try)} |  | 
| 160 |  | 
| 161     def _conditional_macros(self, conditional): |  | 
| 162         return '    %(macro_style_name)s_INTERFACES_FOR_EACH_%(conditional)s(mac
     ro) \\' % { |  | 
| 163             'macro_style_name': _to_macro_style(self.class_name), |  | 
| 164             'conditional': conditional, |  | 
| 165         } |  | 
| 166 |  | 
| 167     def generate_interfaces_header(self): |  | 
| 168         return INTERFACES_HEADER_TEMPLATE % { |  | 
| 169             'license': license.license_for_generated_cpp(), |  | 
| 170             'class_name': self.class_name, |  | 
| 171             'macro_style_name': _to_macro_style(self.class_name), |  | 
| 172             'declare_conditional_macros': self._declare_conditional_macros(), |  | 
| 173             'unconditional_macros': '\n'.join(sorted(set(map(self._unconditional
     _macro, self._unconditional_entries)))), |  | 
| 174             'conditional_macros': '\n'.join(map(self._conditional_macros, self._
     entries_by_conditional.keys())), |  | 
| 175         } |  | 
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