Function mapEdges

packages/effect/src/Graph.ts:1901–1919

(
  mutable: MutableGraph<N, E, T>,
  f: (data: E) => E
)

 * @since 3.18.0
 */
export const mapEdges = <N, E, T extends Kind = "directed">(
  mutable: MutableGraph<N, E, T>,
  f: (data: E) => E
): void => {
  assertMutable(mutable)
  const impl = graphImpl(mutable)

  // Transform existing edge data in place
  for (const [index, edgeData] of impl.edges) {
    const newData = f(edgeData.data)
    impl.edges.set(
      index,
      new Edge({
        ...edgeData,
        data: newData
      })
    )
  }
}

/**
 * @internal