Module graph_classifier 

Graph classifier — structural classification of Pattern<V> values.

Ported from Pattern.Graph.GraphClassifier in the Haskell reference implementation.

Structs

GraphClassifier

Injectable classification strategy wrapping a boxed closure.

Enums

GraphClass

The five structural categories a pattern can belong to.

Traits

GraphValue

Value types that can be used with GraphClassifier and PatternGraph.

Functions

canonical_classifier

Returns the standard shape-based classifier.

classify_by_shape

Classifies a pattern by its structural shape.

from_test_node

Wraps a node predicate into a two-category classifier (GNode vs GOther(())).