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fix(library/type_context): improve on_is_def_eq_failure

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Leonardo de Moura 2015-11-30 08:23:54 -07:00
parent 3d7831284b
commit 37ad850455
1 changed files with 3 additions and 1 deletions
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4
src/library/type_context.cpp
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@ -1298,13 +1298,15 @@ optional<pair<expr, expr>> type_context::find_unsynth_metavar(expr const & e) {
} }
bool type_context::on_is_def_eq_failure(expr & e1, expr & e2) { bool type_context::on_is_def_eq_failure(expr & e1, expr & e2) {
if (is_app(e1) && is_app(e2)) { if (is_app(e1)) {
if (auto p1 = find_unsynth_metavar(e1)) { if (auto p1 = find_unsynth_metavar(e1)) {
if (mk_nested_instance(p1->first, p1->second)) { if (mk_nested_instance(p1->first, p1->second)) {
e1 = instantiate_uvars_mvars(e1); e1 = instantiate_uvars_mvars(e1);
return true; return true;
} }
} }
}
if (is_app(e2)) {
if (auto p2 = find_unsynth_metavar(e2)) { if (auto p2 = find_unsynth_metavar(e2)) {
if (mk_nested_instance(p2->first, p2->second)) { if (mk_nested_instance(p2->first, p2->second)) {
e2 = instantiate_uvars_mvars(e2); e2 = instantiate_uvars_mvars(e2);