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Grammar start symbol is public

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This commit is contained in:
John Doty 2024-08-29 08:12:08 -07:00
parent dc03bf7373
commit 344dde51be
1 changed files with 6 additions and 4 deletions
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10
parser/parser.py
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@ -1813,7 +1813,6 @@ class Grammar:
""" """
_precedence: dict[str, typing.Tuple[Assoc, int]] _precedence: dict[str, typing.Tuple[Assoc, int]]
_start: str
_generator: type[GenerateLR0] _generator: type[GenerateLR0]
_terminals: list[Terminal] _terminals: list[Terminal]
_trivia: list[Terminal] _trivia: list[Terminal]
@ -1886,7 +1885,7 @@ class Grammar:
name = self.__class__.__name__.removesuffix("Grammar").lower() name = self.__class__.__name__.removesuffix("Grammar").lower()
self._precedence = precedence_table self._precedence = precedence_table
self._start = start self.start = start
self._generator = generator self._generator = generator
self._terminals = list(terminals.values()) self._terminals = list(terminals.values())
self._trivia = resolved_trivia self._trivia = resolved_trivia
@ -1900,6 +1899,9 @@ class Grammar:
def resolved_trivia(self) -> list[Terminal]: def resolved_trivia(self) -> list[Terminal]:
return self._trivia return self._trivia
def rules(self) -> list[Rule]:
return list(inspect.getmembers(self, lambda x: isinstance(x, Rule)))
def generate_nonterminal_dict( def generate_nonterminal_dict(
self, start: str | None = None self, start: str | None = None
) -> typing.Tuple[dict[str, list[list[str | Terminal]]], set[str]]: ) -> typing.Tuple[dict[str, list[list[str | Terminal]]], set[str]]:
@ -1912,7 +1914,7 @@ class Grammar:
productions. productions.
""" """
if start is None: if start is None:
start = self._start start = self.start
rules = inspect.getmembers(self, lambda x: isinstance(x, NonTerminal)) rules = inspect.getmembers(self, lambda x: isinstance(x, NonTerminal))
nonterminals = {rule.name: rule for _, rule in rules} nonterminals = {rule.name: rule for _, rule in rules}
@ -1978,7 +1980,7 @@ class Grammar:
nonterminal rule. nonterminal rule.
""" """
if start is None: if start is None:
start = self._start start = self.start
desugared, transparents = self.desugar(start) desugared, transparents = self.desugar(start)
if generator is None: if generator is None: