Struct GrammarMergeOptions 

pub struct GrammarMergeOptions<'a> {
    pub samples: BTreeMap<String, Vec<String>>,
    pub required_equivalences: Vec<(String, String)>,
    pub previous: Option<&'a GrammarMergeResult>,
    pub decorators: DecoratorSet,
    pub reconcile: bool,
}

Optional inputs of merge_grammars.

Fields

samples: BTreeMap<String, Vec<String>>

Sample inputs keyed by sourceId:ruleName; identical samples only nominate candidates, they never decide a merge.

required_equivalences: Vec<(String, String)>

Pairs of sourceId:ruleName aliases that must end up merged.

previous: Option<&'a GrammarMergeResult>

An earlier result: unchanged groups are reused and established canonical names are kept.

decorators: DecoratorSet

merge-decision decorators, which see each decision as { kind, name, members, basis, definition } (members joined by spaces): they may change the kind or the basis, and drop removes the decision. They change the reported decisions only, never the merged grammar.

reconcile: bool

Also unite corresponding rules of different sources that are equivalent up to their lexical roles, or that share a name when no correspondence matched them (see reconcile.rs). Each such class is a GrammarMergeDecisionKind::Reconciled decision, kept by the definition of its first source and the concept of its first rule that has one.

Trait Implementations

impl<'a> Clone for GrammarMergeOptions<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for GrammarMergeOptions<'a>

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

Formats the value using the given formatter.

impl<'a> Default for GrammarMergeOptions<'a>

fn default() -> GrammarMergeOptions<'a>

Returns the “default value” for a type.