tree a981f55fa77726b8af534fbd5015cb0c95245df6
parent 55ae771cfa82f3846897c972e262ed5d54d47d48
author Joe Tsai <joetsai@digital-static.net> 1476398831 -0700
committer Joe Tsai <joetsai@digital-static.net> 1476398888 -0700

Add check for argument position of context variable.