Interface Matchable<A, Tags>

Pattern matching interface for functional data types.

interface Matchable<A, Tags extends string = string> {
match<R>(patterns: Record<Tags, (value: A) => R>): R;
}

Type Parameters

A
The type of elements in the data structure
Tags extends string = string
The type of tags used for pattern matching

Hierarchy (View Summary)

Matchable
- Functype

Index

Methods

Methods

match

match<R>(patterns: Record<Tags, (value: A) => R>): R
Pattern matches against this data structure, applying handlers for each variant based on tag. Similar to fold but with stronger type safety for tag-based variants.

The return type is inferred from the pattern handlers when not explicitly specified.
Type Parameters
- R
Parameters
- patterns: Record<Tags, (value: A) => R>
  An object containing handler functions for each variant
Returns R
The result of applying the matching handler function