t[i] = t[j]

[texcoffier]

When translating:

def main(t, i, j):
    t[i] = t[j]

We obtain:

t[((i.__uid__) ? i.__uid__ : i)] =
t[((j.__uid__) ? j.__uid__ : ((j instanceof Array) ? JSON.stringify(j) : j))];

The expression should be symetrical.