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

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