components/webui_generator/generator/export_h.py

   1 # Copyright 2015 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 import datetime
   6 import util
   7 import os
   8
   9 H_FILE_TEMPLATE = \
  10 """// Copyright %(year)d The Chromium Authors. All rights reserved.
  11 // Use of this source code is governed by a BSD-style license that can be
  12 // found in the LICENSE file.
  13
  14 // NOTE: this file is generated from "%(source)s". Do not modify directly.
  15
  16 #ifndef %(include_guard)s
  17 #define %(include_guard)s
  18
  19 #if defined(COMPONENT_BUILD)
  20
  21 #if defined(WIN32)
  22
  23 #if defined(%(impl_macro)s)
  24 #define %(export_macro)s __declspec(dllexport)
  25 #else
  26 #define %(export_macro)s __declspec(dllimport)
  27 #endif  // defined(%(impl_macro)s)
  28
  29 #else  // defined(WIN32)
  30
  31 #if defined(%(impl_macro)s)
  32 #define %(export_macro)s __attribute__((visibility("default")))
  33 #else
  34 #define %(export_macro)s
  35 #endif  // defined(%(impl_macro)s)
  36
  37 #endif  // defined(WIN32)
  38
  39 #else  // defined(COMPONENT_BUILD)
  40
  41 #define %(export_macro)s
  42
  43 #endif
  44
  45 #endif  // %(include_guard)s
  46 """
  47
  48 def GenHFile(declaration):
  49   subs = {}
  50   subs['year'] = datetime.date.today().year
  51   subs['source'] = declaration.path
  52   subs['include_guard'] = util.PathToIncludeGuard(
  53                               declaration.export_h_include_path)
  54   subs['export_macro'] = declaration.component_export_macro
  55   subs['impl_macro'] = declaration.component_impl_macro
  56   return H_FILE_TEMPLATE % subs
  57
  58 def ListOutputs(declaration, destination):
  59   dirname = os.path.join(destination, os.path.dirname(declaration.path))
  60   h_file_path = os.path.join(dirname, declaration.export_h_name)
  61   return [h_file_path]
  62
  63 def Gen(declaration, destination):
  64   h_file_path = ListOutputs(declaration, destination)[0]
  65   util.CreateDirIfNotExists(os.path.dirname(h_file_path))
  66   open(h_file_path, 'w').write(GenHFile(declaration))