Function isPattern

repos/effect/packages/effect/src/SchemaAST.ts:3043–3061

(regExp: globalThis.RegExp, annotations?: Schema.Annotations.Filter)

      this.context
    )
  }
  /** @internal */
  getExpected(getExpected: (ast: AST) => string): string {
    return getExpected(this.thunk())
  }
}

// -----------------------------------------------------------------------------
// Checks
// -----------------------------------------------------------------------------

/**
 * Represents a single validation check attached to an AST node.
 *
 * **Details**
 *
 * - `run` — the validation function. Returns `undefined` on success, or an
 *   `Issue` on failure.
 * - `annotations` — optional filter-level annotations (expected message,
 *   representation, arbitrary constraint hints).
 * - `aborted` — when `true`, parsing stops immediately after this filter
 *   fails (no further checks run).