diff --git a/src/ast.rs b/src/ast.rs
index fdd5855..88a8aa4 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -16,6 +16,16 @@ use string::String;
 use vec::Vec;
 use boxed::Box;
 
+/// The maximum recursion depth used when parsing.
+///
+/// See [`ParseContext`](struct.ParseContext.html).
+const MAX_RECURSION_PARSE: u32 = 192;
+
+/// The maximum recursion depth used when demangling a parsed AST.
+///
+/// See [`DemangleContext`](struct.DemangleContext.html).
+const MAX_RECURSION_DEMANGLE: u32 = 192;
+
 struct AutoLogParse;
 
 #[cfg(feature = "logging")]
@@ -177,7 +187,7 @@ pub struct ParseContext {
 impl Default for ParseContext {
     fn default() -> ParseContext {
         ParseContext {
-            max_recursion: 64,
+            max_recursion: MAX_RECURSION_PARSE,
             state: Cell::new(ParseContextState::default()),
         }
     }
@@ -583,7 +593,7 @@ where
     ) -> DemangleContext<'a, W> {
         DemangleContext {
             subs: subs,
-            max_recursion: 128,
+            max_recursion: MAX_RECURSION_DEMANGLE,
             inner: vec![],
             input: input,
             source_name: None,
diff --git a/tests/tests.rs b/tests/tests.rs
index df7f2c9..5e52464 100755
--- a/tests/tests.rs
+++ b/tests/tests.rs
@@ -564,3 +564,23 @@ demangles!(
     ___ZN19URLConnectionClient33_clientInterface_cancelConnectionEP16dispatch_queue_sU13block_pointerFvvE_block_invoke14,
     "invocation function for block in URLConnectionClient::_clientInterface_cancelConnection(dispatch_queue_s*, void () block_pointer)"
 );
+
+demangles!(
+    _ZNK8xxxxxxxx14xxxxxxxxxxxxxxINS_14xxxxxxxxxxxxxxINS1_INS1_INS1_INS1_INS1_INS_10xxxxxxxxxxE32xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxEES3_EE22xxxxxxxxxxxxxxxxxxxxxxEES6_EE13xxxxxxxxxxxxxEE17xxxxxxxxxxxxxxxxxEE14xxxxxxxxxxxxxxE8xxxxxxxxE7xxxxxxxRKN4xxxx5xxxxxEb,
+    "xxxxxxxx::xxxxxxxxxxxxxx<xxxxxxxx::xxxxxxxxxxxxxx<xxxxxxxx::xxxxxxxxxxxxxx<xxxxxxxx::xxxxxxxxxxxxxx<xxxxxxxx::xxxxxxxxxxxxxx<xxxxxxxx::xxxxxxxxxxxxxx<xxxxxxxx::xxxxxxxxxxxxxx<xxxxxxxx::xxxxxxxxxx, xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>, xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>, xxxxxxxxxxxxxxxxxxxxxx>, xxxxxxxxxxxxxxxxxxxxxx>, xxxxxxxxxxxxx>, xxxxxxxxxxxxxxxxx>, xxxxxxxxxxxxxx>::xxxxxxxx(xxxxxxx, xxxx::xxxxx const&, bool) const"
+);
+
+demangles!(
+    _ZN5boost7variantIiJljdbNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS_17basic_string_viewIcS4_EElmxyNS_10filesystem4pathEEEC2IS6_EEOT_PNS_9enable_ifINS_3mpl3or_INSG_4and_INS_19is_rvalue_referenceISE_EENSG_4not_INS_8is_constISD_EEEENSL_INS_7is_sameISD_SB_EEEENS_6detail7variant29is_variant_constructible_fromISE_NSG_6l_itemIN4mpl_5long_ILl12EEEiNSV_INSX_ILl11EEElNSV_INSX_ILl10EEEjNSV_INSX_ILl9EEEdNSV_INSX_ILl8EEEbNSV_INSX_ILl7EEES6_NSV_INSX_ILl6EEES8_NSV_INSX_ILl5EEElNSV_INSX_ILl4EEEmNSV_INSX_ILl3EEExNSV_INSX_ILl2EEEyNSV_INSX_ILl1EEESA_NSG_5l_endEEEEEEEEEEEEEEEEEEEEEEEEEEENSW_5bool_ILb1EEEEENSP_ISD_NS_18recursive_variant_EEENS1O_ILb0EEES1T_S1T_EEvE4typeE,
+    "boost::variant<int, long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path>::variant<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >(boost::enable_if<boost::mpl::or_<boost::mpl::and_<boost::is_rvalue_reference<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&>, boost::mpl::not_<boost::is_const<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, boost::mpl::not_<boost::is_same<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::variant<int, long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path> > >, boost::detail::variant::is_variant_constructible_from<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&&, boost::mpl::l_item<mpl_::long_<(long)12>, int, boost::mpl::l_item<mpl_::long_<(long)11>, long, boost::mpl::l_item<mpl_::long_<(long)10>, unsigned int, boost::mpl::l_item<mpl_::long_<(long)9>, double, boost::mpl::l_item<mpl_::long_<(long)8>, bool, boost::mpl::l_item<mpl_::long_<(long)7>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::mpl::l_item<mpl_::long_<(long)6>, boost::basic_string_view<char, std::char_traits<char> >, boost::mpl::l_item<mpl_::long_<(long)5>, long, boost::mpl::l_item<mpl_::long_<(long)4>, unsigned long, boost::mpl::l_item<mpl_::long_<(long)3>, long long, boost::mpl::l_item<mpl_::long_<(long)2>, unsigned long long, boost::mpl::l_item<mpl_::long_<(long)1>, boost::filesystem::path, boost::mpl::l_end> > > > > > > > > > > > >, mpl_::bool_<true> >, boost::is_same<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::recursive_variant_>, mpl_::bool_<false>, mpl_::bool_<false>, mpl_::bool_<false> >, void>::type*)"
+);
+
+demangles!(
+    _ZN5boost6detail7variant21make_initializer_node5applyINS_3mpl4pairINS3_INS5_INS3_INS5_INS3_INS5_INS3_INS5_INS3_INS5_INS1_16initializer_rootEN4mpl_4int_ILi0EEEEENS4_6l_iterINS4_6list12IixjdbNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS_17basic_string_viewIcSG_EElmxyNS_10filesystem4pathEEEEEE16initializer_nodeENS8_ILi1EEEEENSB_INS4_6list11IxjdbSI_SK_lmxySM_EEEEE16initializer_nodeENS8_ILi2EEEEENSB_INS4_6list10IjdbSI_SK_lmxySM_EEEEE16initializer_nodeENS8_ILi3EEEEENSB_INS4_5list9IdbSI_SK_lmxySM_EEEEE16initializer_nodeENS8_ILi4EEEEENSB_INS4_5list8IbSI_SK_lmxySM_EEEEE16initializer_nodeENS8_ILi5EEEEENSB_INS4_5list7ISI_SK_lmxySM_EEEEE16initializer_node10initializeEPvRKSI_,
+    "boost::detail::variant::make_initializer_node::apply<boost::mpl::pair<boost::detail::variant::make_initializer_node::apply<boost::mpl::pair<boost::detail::variant::make_initializer_node::apply<boost::mpl::pair<boost::detail::variant::make_initializer_node::apply<boost::mpl::pair<boost::detail::variant::make_initializer_node::apply<boost::mpl::pair<boost::detail::variant::make_initializer_node::apply<boost::mpl::pair<boost::detail::variant::initializer_root, mpl_::int_<0> >, boost::mpl::l_iter<boost::mpl::list12<int, long long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path> > >::initializer_node, mpl_::int_<1> >, boost::mpl::l_iter<boost::mpl::list11<long long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path> > >::initializer_node, mpl_::int_<2> >, boost::mpl::l_iter<boost::mpl::list10<unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path> > >::initializer_node, mpl_::int_<3> >, boost::mpl::l_iter<boost::mpl::list9<double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path> > >::initializer_node, mpl_::int_<4> >, boost::mpl::l_iter<boost::mpl::list8<bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path> > >::initializer_node, mpl_::int_<5> >, boost::mpl::l_iter<boost::mpl::list7<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path> > >::initializer_node::initialize(void*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)"
+);
+
+demangles!(
+    _ZN5boost6detail7variant15visitation_implIN4mpl_4int_ILi0EEENS1_20visitation_impl_stepINS_3mpl6l_iterINS7_6l_itemINS3_5long_ILl12EEEiNS9_INSA_ILl11EEExNS9_INSA_ILl10EEEjNS9_INSA_ILl9EEEdNS9_INSA_ILl8EEEbNS9_INSA_ILl7EEENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS9_INSA_ILl6EEENS_17basic_string_viewIcSK_EENS9_INSA_ILl5EEElNS9_INSA_ILl4EEEmNS9_INSA_ILl3EEExNS9_INSA_ILl2EEEyNS9_INSA_ILl1EEENS_10filesystem4pathENS7_5l_endEEEEEEEEEEEEEEEEEEEEEEEEEEENS8_ISX_EEEENS_7variantIiJxjdbSM_SP_lmxySW_EE8assignerEPKvNS1E_18has_fallback_type_EEENT1_11result_typeEiiRS1J_T2_NS3_5bool_ILb0EEET3_PT_PT0_,
+    "boost::variant<int, long long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path>::assigner::result_type boost::detail::variant::visitation_impl<mpl_::int_<0>, boost::detail::variant::visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<(long)12>, int, boost::mpl::l_item<mpl_::long_<(long)11>, long long, boost::mpl::l_item<mpl_::long_<(long)10>, unsigned int, boost::mpl::l_item<mpl_::long_<(long)9>, double, boost::mpl::l_item<mpl_::long_<(long)8>, bool, boost::mpl::l_item<mpl_::long_<(long)7>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::mpl::l_item<mpl_::long_<(long)6>, boost::basic_string_view<char, std::char_traits<char> >, boost::mpl::l_item<mpl_::long_<(long)5>, long, boost::mpl::l_item<mpl_::long_<(long)4>, unsigned long, boost::mpl::l_item<mpl_::long_<(long)3>, long long, boost::mpl::l_item<mpl_::long_<(long)2>, unsigned long long, boost::mpl::l_item<mpl_::long_<(long)1>, boost::filesystem::path, boost::mpl::l_end> > > > > > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >, boost::variant<int, long long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path>::assigner, void const*, boost::variant<int, long long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path>::has_fallback_type_>(int, int, boost::variant<int, long long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path>::assigner&, void const*, mpl_::bool_<false>, boost::variant<int, long long, unsigned int, double, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::basic_string_view<char, std::char_traits<char> >, long, unsigned long, long long, unsigned long long, boost::filesystem::path>::has_fallback_type_, mpl_::int_<0>*, boost::detail::variant::visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<(long)12>, int, boost::mpl::l_item<mpl_::long_<(long)11>, long long, boost::mpl::l_item<mpl_::long_<(long)10>, unsigned int, boost::mpl::l_item<mpl_::long_<(long)9>, double, boost::mpl::l_item<mpl_::long_<(long)8>, bool, boost::mpl::l_item<mpl_::long_<(long)7>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::mpl::l_item<mpl_::long_<(long)6>, boost::basic_string_view<char, std::char_traits<char> >, boost::mpl::l_item<mpl_::long_<(long)5>, long, boost::mpl::l_item<mpl_::long_<(long)4>, unsigned long, boost::mpl::l_item<mpl_::long_<(long)3>, long long, boost::mpl::l_item<mpl_::long_<(long)2>, unsigned long long, boost::mpl::l_item<mpl_::long_<(long)1>, boost::filesystem::path, boost::mpl::l_end> > > > > > > > > > > > >, boost::mpl::l_iter<boost::mpl::l_end> >*)"
+);