% macros=mkvi

\starttext

    \checked\def \whatevera#alpha#beta{#alpha + #beta}
    \checked\edef\whatevera#alpha#beta{#beta + #alpha}

    \unique \def \whateverb#alpha#beta{#alpha + #beta}
    \unique \edef\whateverb#alpha#beta{#beta + #alpha}

    \whatevera{1}{2}\par
    \whateverb{1}{2}\par

\stoptext
