libcxx/utils/generate_std_cppm_in.py

   1 # ===----------------------------------------------------------------------===##
   2 #
   3 # Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 # See https://llvm.org/LICENSE.txt for license information.
   5 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 #
   7 # ===----------------------------------------------------------------------===##
   8
   9 import operator
  10 import os.path
  11
  12 from libcxx.header_information import module_headers
  13 from libcxx.header_information import header_restrictions
  14 from libcxx.header_information import headers_not_available
  15
  16
  17 libcxx_module_directory = os.path.join(
  18     os.path.dirname(os.path.dirname(os.path.realpath(__file__))), "modules"
  19 )
  20 with open(
  21     os.path.join(libcxx_module_directory, "std.cppm.in"), "w"
  22 ) as std_module_cpp_in:
  23     std_module_cpp_in.write(
  24         """\
  25 // -*- C++ -*-
  26 //===----------------------------------------------------------------------===//
  27 //
  28 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  29 // See https://llvm.org/LICENSE.txt for license information.
  30 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  31 //
  32 //===----------------------------------------------------------------------===//
  33
  34 // WARNING, this entire header is generated by
  35 // utils/generate_std_cppm_in.py
  36 // DO NOT MODIFY!
  37
  38 module;
  39
  40 #include <__config>
  41
  42 // The headers of Table 24: C++ library headers [tab:headers.cpp]
  43 // and the headers of Table 25: C++ headers for C library facilities [tab:headers.cpp.c]
  44 """
  45     )
  46     for header in module_headers:
  47         if header in header_restrictions:
  48             std_module_cpp_in.write(
  49                 f"""\
  50 #if {header_restrictions[header]}
  51 #  include <{header}>
  52 #endif
  53 """
  54             )
  55         else:
  56             std_module_cpp_in.write(f"#include <{header}>\n")
  57
  58     std_module_cpp_in.write("\n// *** Headers not yet available ***\n")
  59     for header in sorted(headers_not_available):
  60         std_module_cpp_in.write(
  61             f"""\
  62 #if __has_include(<{header}>)
  63 #  error "update the header information for <{header}> in libcxx/utils/generate_std_cppm_in.py"
  64 #endif //   __has_include(<{header}>)
  65 """
  66         )
  67
  68     std_module_cpp_in.write(
  69         """
  70 export module std;
  71
  72 @LIBCXX_MODULE_STD_INCLUDE_SOURCES@
  73 """
  74     )