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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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 14224x 14224x 14224x 14224x 56811x 752510x 752510x 752510x 56811x 14224x 14224x 14224x 14224x 14224x 14224x 577463x 577463x 577463x 577463x 577463x 577463x 577463x 401403x 401403x 401403x 401403x 401403x 1068908x 1068908x 667773x 667773x 667773x 667773x 667773x 667773x 667773x 667773x 300745x 300745x 300745x 667773x 667773x 1068908x 366760x 366760x 1068908x 401403x 401403x 401403x 577463x 577463x 577463x 577463x 14224x 14224x 14224x | 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 {...import('zimmerframe').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 {import('zimmerframe').Visitors<T, U>} */
// @ts-expect-error
const combined = {};
for (const key in visitors) {
const fns = visitors[key];
/**
* @param {T} node
* @param {import('zimmerframe').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;
}
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