lib: Add slots to CFG data structures (b877176d) · Commits · fja / eval

lib/grammars_cfg.py

+9 −0

Original line number	Diff line number	Diff line
		@@ -111,6 +111,8 @@ def zip_fill(seqa: Iterable[TA], seqb: Iterable[TB], sentinel: bool = False) \


		class ChangeTracker:
		__slots__ = ["_changed"]

		def __init__(self):
		self._changed = True

		@@ -135,6 +137,8 @@ class CFG:
		Word = Tuple[Terminal, ...]
		Rules = Dict[Nonterminal, Set[Production]]

		__slots__ = ["nonterminals", "terminals", "rules", "init"]

		def __init__(self, nonterminals: Set[Nonterminal],
		terminals: Set[Terminal],
		rules: CFG.Rules,
		@@ -651,6 +655,8 @@ class WordGenerator:
		CountMap = Dict[Nonterminal, int]
		ProdCountMap = Dict[CFG.Production, int]

		__slots__ = ["cfg", "_seen", "_stack", "_cur_lenght", "_next_length", "last", "counts", "prod_counts"]

		def __init__(self, cfg: CFG):
		self.cfg = cfg.proper()
		self._seen: Set[CFG.Symbols] = set()
		@@ -832,6 +838,9 @@ class WordGenerator:


		class CachedCYK:

		__slots__ = ["cfg", "cache"]

		def __init__(self, cfg: CFG):
		self.cfg = cfg.cnf()
		self.cache: Dict[CFG.Word, Set[Nonterminal]] = dict()