[NTG-context] question about vardef variables
damien at thiriet.web4me.fr
Sun Jan 17 11:17:00 CET 2021
I have some troubles with understanding metafun's macro mechanism.
Given this MWE:
vardef Test (expr ab,cd)=
draw unitsquare scaled 10 xshifted ab;
draw unitsquare scaled 10 yshifted cd;
Uncommenting the two declarations makes me run intro a silent error. I was
lucky enough yesterday to get an explicit error message with a more
complex macro. It made me figure out where my problems came from.
So here are my two questions:
- Why shouldn't we tell metafun if expr is a path, a pair or so on?
- Would it be possible to issue an error message each time this wrong
declaration is made?
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