comparison mercurial/revsetlang.py @ 34020:37b82485097f

revset: do not flip "and" arguments when optimizing

Rewrite `flipand(y, x)` to `andsmally(x, y)` so the AST order is unchanged,
which could be more friendly to developers.

Differential Revision: https://phab.mercurial-scm.org/D579

34019:205c47e30a93

            return w, ('func', ('symbol', 'only'), tm)

        if tb is not None and tb[0] == 'not':
            return wa, ('difference', ta, tb[1])
        if wa > wb:
            return w, ('flipand', tb, ta)
        return w, (op, ta, tb)
    elif op == 'or':
        # fast path for machine-generated expression, that is likely to have
        # lots of trivial revisions: 'a + b + c()' to '_list(a b) + c()'
        ws, ts, ss = [], [], []

34020:37b82485097f

            return w, ('func', ('symbol', 'only'), tm)

        if tb is not None and tb[0] == 'not':
            return wa, ('difference', ta, tb[1])
        if wa > wb:
            op = 'andsmally'
        return w, (op, ta, tb)
    elif op == 'or':
        # fast path for machine-generated expression, that is likely to have
        # lots of trivial revisions: 'a + b + c()' to '_list(a b) + c()'
        ws, ts, ss = [], [], []