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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 15078x 15078x 15078x 15078x 60224x 821649x 821649x 821649x 60224x 15078x 15078x 15078x 15078x 15078x 15078x 605114x 605114x 605114x 605114x 605114x 605114x 605114x 412967x 412967x 412967x 412967x 412967x 1114888x 1114888x 702209x 702209x 702209x 702209x 702209x 702209x 702209x 702209x 324910x 324910x 324910x 702209x 702209x 1114888x 377011x 377011x 1114888x 412967x 412967x 412967x 605114x 605114x 605114x 605114x 15078x 15078x 15078x | /** @import { Visitors, Context } from 'zimmerframe' */ const overrides = { visit() { throw new Error('Cannot call visit() during analysis'); }, stop() { throw new Error('Cannot call stop() during analysis'); } }; /** * @template {{ type: string }} T * @template U * @param {...Visitors<T, U>} tasks * @returns */ export function merge(...tasks) { /** @type {Record<string, any[]>} */ const visitors = {}; for (const task of tasks) { for (const key in task) { if (!visitors[key]) visitors[key] = []; visitors[key].push(task[key]); } } /** @type {Visitors<T, U>} */ // @ts-expect-error const combined = {}; for (const key in visitors) { const fns = visitors[key]; /** * @param {T} node * @param {Context<T, U>} context */ function visitor(node, context) { /** * @param {number} i * @param {U} state */ function go(i, state) { const fn = fns[i]; if (!fn) return context.next(state); let called_next = false; fn(node, { ...context, ...overrides, state, next(next_state = state) { called_next = true; go(i + 1, next_state); } }); if (!called_next) { go(i + 1, state); } } go(0, context.state); } // @ts-expect-error combined[key] = visitor; } return combined; } |