8000 Add experimental fast parser powered by typed_ast · python/mypy@46c44df · GitHub
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Add experimental fast parser powered by typed_ast
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‎mypy/build.py

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -51,6 +51,7 @@
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DUMP_TYPE_STATS = 'dump-type-stats'
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DUMP_INFER_STATS = 'dump-infer-stats'
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SILENT_IMPORTS = 'silent-imports' # Silence imports of .py files
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FAST_PARSER = 'fast-parser' # Use experimental fast parser
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# Disallow calling untyped functions from typed ones
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DISALLOW_UNTYPED_CALLS = 'disallow-untyped-calls'
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@@ -833,7 +834,8 @@ def parse(self, source_text: Union[str, bytes], fnam: str) -> MypyFile:
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tree = parse.parse(source_text, fnam, self.errors(),
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pyversion=self.manager.pyversion,
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custom_typing_module=self.manager.custom_typing_module,
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implicit_any=self.manager.implicit_any)
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implicit_any=self.manager.implicit_any,
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fast_parser=FAST_PARSER in self.manager.flags)
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tree._fullname = self.id
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if self.errors().num_messages() != num_errs:
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self.errors().raise_error()

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