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feat(frontends/lean/elaborator): structure notation: allow explicit ctor param when given expected type

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Sebastian Ullrich 2017-09-01 14:04:19 +02:00
parent da785d96a0
commit 3aa5ebb8bd
1 changed files with 1 additions and 1 deletions
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2
src/frontends/lean/elaborator.cpp
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@ -2920,7 +2920,7 @@ expr elaborator::visit_structure_instance(expr const & e, optional<expr> const &
expr c_arg;
expr d = binding_domain(c_type);
if (i < nparams) {
if (is_explicit(binding_info(c_type))) {
if (is_explicit(binding_info(c_type)) && !expected_type) {
report_or_throw(elaborator_exception(e, sstream() << "invalid structure value {...}, structure parameter '" <<
binding_name(c_type)
<< "' is explicit in the structure constructor '" <<