Function nextMapped

packages/effect/src/Graph.ts:5193–5239

()

      }

      const nextMapped = () => {
        while (stack.length > 0) {
          const [current, depth] = stack.pop()!

          if (depths === undefined) {
            if (yielded.has(current)) {
              continue
            }
          } else if (depths.get(current) !== depth) {
            continue
          }

          const nodeDataOption = getNode(graph, current)
          if (Option.isNone(nodeDataOption)) {
            continue
          }

          if (depth < radius) {
            const neighbors = getTraversalNeighbors(graph, current, direction)
            for (let i = neighbors.length - 1; i >= 0; i--) {
              const neighbor = neighbors[i]
              const nextDepth = depth + 1
              if (depths === undefined) {
                if (!yielded.has(neighbor)) {
                  stack.push([neighbor, nextDepth])
                }
                continue
              }
              const neighborDepth = depths.get(neighbor)
              if (neighborDepth === undefined || nextDepth < neighborDepth) {
                depths.set(neighbor, nextDepth)
                stack.push([neighbor, nextDepth])
              }
            }
          }

          if (yielded.has(current)) {
            continue
          }

          yielded.add(current)

          return { done: false, value: f(current, nodeDataOption.value) }
        }

        return { done: true, value: undefined } as const
      }

      return { next: nextMapped }
    }