effect-io-ai

Package: effect
Module: SchemaAST

SchemaAST.isNever

Narrows an AST to Never.

When to use

Use to detect the AST node for a schema that can never match before handling other schema variants.

See

• Never for the AST node type narrowed by this guard
• never for the singleton Never AST instance

Signature

declare const isNever: (ast: AST) => ast is Never

Source

Since v4.0.0