17 lines
522 B
Python
17 lines
522 B
Python
# Copyright (c) PARRRATE T&V 2021. All rights reserved.
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from bu4.parsing.codes import CODE_NULL
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from bu4.parsing.constructs.pnull import PNull
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from bu4.parsing.extensions.extension import Extension
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from bu4.parsing.states.parsestate import ParseState
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from bu4.parsing.states.psafter import PSAfter
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from bu4.parsing.states.psfinal import PSFinal
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__all__ = ('XNull',)
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class XNull(Extension, code=CODE_NULL):
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def apply(self, state: PSAfter) -> ParseState:
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state.state = PSFinal(PNull())
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return state
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