| 1 | #!/usr/bin/env python2
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| 2 | """Option_gen.py."""
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| 3 | from __future__ import print_function
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| 4 |
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| 5 | import sys
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| 6 |
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| 7 | from asdl import ast
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| 8 | from frontend import builtin_def
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| 9 | from frontend import option_def
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| 10 |
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| 11 |
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| 12 | def _CreateSum(sum_name, variant_names):
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| 13 | """Similar to frontend/id_kind_gen.py Usage of SYNTHETIC ASDL module:
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| 14 |
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| 15 | C++:
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| 16 |
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| 17 | using option_asdl::opt_num
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| 18 | opt_num::nounset
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| 19 |
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| 20 | Python:
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| 21 | from _devbuild.gen.option_asdl import opt_num
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| 22 | opt_num.nounset
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| 23 | """
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| 24 | sum_ = ast.SimpleSum(
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| 25 | [ast.MakeSimpleVariant(name) for name in variant_names],
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| 26 | generate=['integers'])
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| 27 | typ = ast.TypeDecl(sum_name, sum_)
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| 28 | return typ
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| 29 |
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| 30 |
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| 31 | def main(argv):
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| 32 | try:
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| 33 | action = argv[1]
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| 34 | except IndexError:
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| 35 | raise RuntimeError('Action required')
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| 36 |
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| 37 | # generate builtin::echo, etc.
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| 38 | # This relies on the assigned option numbers matching ASDL's numbering!
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| 39 | # TODO: Allow controlling the integer values in ASDL enums?
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| 40 |
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| 41 | option = _CreateSum('option', [opt.name for opt in option_def.All()])
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| 42 | builtin = _CreateSum('builtin', [b.enum_name for b in builtin_def.All()])
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| 43 | # TODO: could shrink array later.
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| 44 | # [opt.name for opt in option_def.All() if opt.implemented])
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| 45 |
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| 46 | schema_ast = ast.Module('option', [], [], [option, builtin])
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| 47 |
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| 48 | if action == 'cpp':
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| 49 | from asdl import gen_cpp
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| 50 |
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| 51 | out_prefix = argv[2]
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| 52 |
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| 53 | with open(out_prefix + '.h', 'w') as f:
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| 54 | f.write("""\
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| 55 | #ifndef OPTION_ASDL_H
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| 56 | #define OPTION_ASDL_H
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| 57 |
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| 58 | namespace option_asdl {
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| 59 |
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| 60 | #define ASDL_NAMES struct
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| 61 | """)
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| 62 |
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| 63 | # Don't need option_str()
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| 64 | v = gen_cpp.ClassDefVisitor(f, pretty_print_methods=False)
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| 65 | v.VisitModule(schema_ast)
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| 66 |
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| 67 | f.write("""
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| 68 | } // namespace option_asdl
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| 69 |
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| 70 | #endif // OPTION_ASDL_H
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| 71 | """)
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| 72 |
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| 73 | elif action == 'mypy':
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| 74 | from asdl import gen_python
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| 75 |
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| 76 | # option_i type
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| 77 | v = gen_python.GenMyPyVisitor(sys.stdout)
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| 78 | v.VisitModule(schema_ast)
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| 79 |
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| 80 | else:
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| 81 | raise RuntimeError('Invalid action %r' % action)
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| 82 |
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| 83 |
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| 84 | if __name__ == '__main__':
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| 85 | try:
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| 86 | main(sys.argv)
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| 87 | except RuntimeError as e:
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| 88 | print('FATAL: %s' % e, file=sys.stderr)
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| 89 | sys.exit(1)
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