Struct ParserRuntimeOptions 

pub struct ParserRuntimeOptions<'a> {
    pub init_action_rules: &'a [usize],
    pub action_indices: &'a [(usize, usize)],
    pub track_alt_numbers: bool,
    pub predicates: &'a [(usize, usize, ParserPredicate)],
    pub semantics: Option<&'a ParserSemantics>,
    pub rule_args: &'a [ParserRuleArg],
    pub member_actions: &'a [ParserMemberAction],
    pub return_actions: &'a [ParserReturnAction],
    pub unknown_predicate_policy: UnknownSemanticPolicy,
    /* private fields */
}

Optional generated-runtime metadata for metadata-driven parser execution.

Fields

init_action_rules: &'a [usize]

Rule indexes whose @init actions should run at rule entry or be returned for legacy replay when no semantic hook handles them.

action_indices: &'a [(usize, usize)]

Stable parser-action indexes keyed by authored ATN source state.

A non-empty table selects committed interpreted execution: mapped actions run at their grammar position instead of being replayed after the complete rule has been recognized.

track_alt_numbers: bool

Whether generated parse-tree contexts should retain alternative numbers.

predicates: &'a [(usize, usize, ParserPredicate)]

Semantic predicate table keyed by serialized (rule_index, pred_index).

semantics: Option<&'a ParserSemantics>

SemIR predicate/action table emitted by newer generated parsers.

rule_args: &'a [ParserRuleArg]

Rule-call integer argument table keyed by ATN source state.

member_actions: &'a [ParserMemberAction]

Integer member mutations keyed by ATN action source state.

return_actions: &'a [ParserReturnAction]

Integer return assignments keyed by ATN action source state.

unknown_predicate_policy: UnknownSemanticPolicy

How to evaluate semantic predicate coordinates absent from predicates.

Trait Implementations

impl<'a> Clone for ParserRuntimeOptions<'a>

fn clone(&self) -> ParserRuntimeOptions<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for ParserRuntimeOptions<'a>

impl<'a> Debug for ParserRuntimeOptions<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> Default for ParserRuntimeOptions<'a>

fn default() -> ParserRuntimeOptions<'a>

Returns the “default value” for a type.