qukit/pkg.web-parallel/gates/controlled-controlled-swap.js

[](https://www.npmjs.com/package/qukit) [](https://crates.io/crates/qukit) [](https://opensource.org/lice

import * as WasmLib from "../pkg/qukit";
export function ccSwap(cQbits0, cQbits1, qbits0, qbits1, sameStep = false) {
    if (Array.isArray(cQbits0) && Array.isArray(cQbits1) && Array.isArray(qbits0) && Array.isArray(qbits1)) {
        const minLen = Math.min(cQbits0.length, cQbits1.length, qbits0.length, qbits1.length);
        if (minLen > 0) {
            ccSwap(cQbits0[0], cQbits1[0], qbits0[0], qbits1[0], sameStep);
        }
        for (let i = 1; i < minLen; i++) {
            ccSwap(cQbits0[i], cQbits1[i], qbits0[i], qbits1[i], sameStep);
        }
    }
    else {
        if (!Array.isArray(cQbits0) && !Array.isArray(cQbits1) && !Array.isArray(qbits0) && !Array.isArray(qbits1)) {
            if (sameStep) {
                WasmLib.controlled_controlled_swap_same_step(cQbits0, cQbits1, qbits0, qbits1);
            }
            else {
                WasmLib.controlled_controlled_swap(cQbits0, cQbits1, qbits0, qbits1);
            }
        }
        else {
            throw new Error("type mismatch");
        }
    }
}