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fix(library/class_instance_resolution): memory initialization bug in new type class resolution procedure

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This commit is contained in:
Leonardo de Moura 2015-10-27 15:49:51 -07:00
parent 95348bc90b
commit 6465b16951
1 changed files with 19 additions and 4 deletions
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23
src/library/class_instance_resolution.cpp
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@ -71,12 +71,25 @@ public:
virtual expr infer_metavar(expr const & e) { return mlocal_type(e); }
};
static void finalize_lm_types(void * p) {
delete reinterpret_cast<ci_local_metavar_types*>(p);
g_lm_types = nullptr;
}
static ci_local_metavar_types & get_lm_types() {
if (!g_lm_types) {
g_lm_types = new default_ci_local_metavar_types();
register_thread_finalizer(finalize_lm_types, g_lm_types);
}
return *g_lm_types;
}
static expr ci_infer_local(expr const & e) {
return g_lm_types->infer_local(e);
return get_lm_types().infer_local(e);
}
static expr ci_infer_metavar(expr const & e) {
return g_lm_types->infer_metavar(e);
return get_lm_types().infer_metavar(e);
}
/** \brief The following global thread local constant is a big hack for mk_subsingleton_instance.
@ -326,18 +339,22 @@ struct cienv {
}
expr whnf(expr const & e) {
lean_assert(m_ti_ptr);
return m_ti_ptr->whnf(e);
}
expr infer_type(expr const & e) {
lean_assert(m_ti_ptr);
return m_ti_ptr->infer(e);
}
bool is_def_eq(expr const & e1, expr const & e2) {
lean_assert(m_ti_ptr);
return m_ti_ptr->is_def_eq(e1, e2);
}
expr instantiate_uvars_mvars(expr const & e) {
lean_assert(m_ti_ptr);
return m_ti_ptr->instantiate_uvars_mvars(e);
}
@ -1069,11 +1086,9 @@ void initialize_class_instance_resolution() {
register_bool_option(*g_class_trans_instances, LEAN_DEFAULT_CLASS_TRANS_INSTANCES,
"(class) use automatically derived instances from the transitive closure of "
"the structure instance graph");
g_lm_types = new default_ci_local_metavar_types();
}
void finalize_class_instance_resolution() {
delete g_lm_types;
delete g_prefix;
delete g_class_trace_instances;
delete g_class_instance_max_depth;