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check for non-nullness when handling optional info fields for marking. Fixes issue #719

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-08-23 11:33:40 -03:00
parent 879f792125
commit 0a09d5ff52
2 changed files with 19 additions and 6 deletions
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16
src/ast/ast.cpp
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@ -1430,14 +1430,22 @@ ast_manager::~ast_manager() {
for (; it_a != end_a; ++it_a) {
ast* n = (*it_a);
switch (n->get_kind()) {
case AST_SORT:
mark_array_ref(mark, to_sort(n)->get_info()->get_num_parameters(), to_sort(n)->get_info()->get_parameters());
case AST_SORT: {
sort_info* info = to_sort(n)->get_info();
if (info != 0) {
mark_array_ref(mark, info->get_num_parameters(), info->get_parameters());
}
break;
case AST_FUNC_DECL:
mark_array_ref(mark, to_func_decl(n)->get_info()->get_num_parameters(), to_func_decl(n)->get_info()->get_parameters());
}
case AST_FUNC_DECL: {
func_decl_info* info = to_func_decl(n)->get_info();
if (info != 0) {
mark_array_ref(mark, info->get_num_parameters(), info->get_parameters());
}
mark_array_ref(mark, to_func_decl(n)->get_arity(), to_func_decl(n)->get_domain());
mark.mark(to_func_decl(n)->get_range(), true);
break;
}
case AST_APP:
mark.mark(to_app(n)->get_decl(), true);
mark_array_ref(mark, to_app(n)->get_num_args(), to_app(n)->get_args());