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c7271a86ca
This file is not executable so shouldn't have the shebang line. This line can cause issues when building on Windows msvc when the PyPython variable is set to something other than "python", because it reverts back to using the shebang line. The top comment is also changed to """ style which matches all other preprocessing scripts in the py/ directory. Signed-off-by: Damien George <damien@micropython.org>
74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
"""
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This pre-processor parses a single file containing a list of
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MP_REGISTER_MODULE(module_name, obj_module)
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These are used to generate a header with the required entries for
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"mp_rom_map_elem_t mp_builtin_module_table[]" in py/objmodule.c
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"""
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from __future__ import print_function
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import re
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import io
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import argparse
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pattern = re.compile(r"\s*MP_REGISTER_MODULE\((.*?),\s*(.*?)\);", flags=re.DOTALL)
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def find_module_registrations(filename):
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"""Find any MP_REGISTER_MODULE definitions in the provided file.
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:param str filename: path to file to check
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:return: List[(module_name, obj_module)]
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"""
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global pattern
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with io.open(filename, encoding="utf-8") as c_file_obj:
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return set(re.findall(pattern, c_file_obj.read()))
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def generate_module_table_header(modules):
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"""Generate header with module table entries for builtin modules.
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:param List[(module_name, obj_module)] modules: module defs
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:return: None
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"""
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# Print header file for all external modules.
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mod_defs = set()
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print("// Automatically generated by makemoduledefs.py.\n")
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for module_name, obj_module in modules:
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mod_def = "MODULE_DEF_{}".format(module_name.upper())
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mod_defs.add(mod_def)
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print(
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(
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"extern const struct _mp_obj_module_t {obj_module};\n"
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"#undef {mod_def}\n"
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"#define {mod_def} {{ MP_ROM_QSTR({module_name}), MP_ROM_PTR(&{obj_module}) }},\n"
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).format(
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module_name=module_name,
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obj_module=obj_module,
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mod_def=mod_def,
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)
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)
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print("\n#define MICROPY_REGISTERED_MODULES \\")
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for mod_def in sorted(mod_defs):
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print(" {mod_def} \\".format(mod_def=mod_def))
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print("// MICROPY_REGISTERED_MODULES")
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("file", nargs=1, help="file with MP_REGISTER_MODULE definitions")
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args = parser.parse_args()
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modules = find_module_registrations(args.file[0])
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generate_module_table_header(sorted(modules))
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if __name__ == "__main__":
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main()
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