max/lean4-htt
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 2

fix(frontends/lean/user_notation): check for closedness before evaluating term

Browse source
This commit is contained in:
Sebastian Ullrich 2017-06-02 13:39:50 +02:00 • committed by Leonardo de Moura
parent 01c430cd62
commit db08f3f139
1 changed files with 5 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/frontends/lean/user_notation.cpp
View file

@ -59,7 +59,11 @@ static environment add_user_notation(environment const & env, name const & d, un
if (is_app_of(arg_type, get_interactive_parse_name())) {
parser = mk_app(parser, parse_interactive_param(p, arg_type));
} else {
parser = mk_app(parser, p.parse_expr(get_max_prec()));
expr e = p.parse_expr(get_max_prec());
if (!closed(e) || has_local(e)) {
throw elaborator_exception(e, "invalid argument to user-defined notation, must be closed term");
}
parser = mk_app(parser, e);
}
}
parser = p.elaborate("_user_notation", {}, parser).first;