compnerd updated this revision to Diff 82815.
compnerd added a comment.
Add suffixes
Repository:
rL LLVM
https://reviews.llvm.org/D28212
Files:
include/typeinfo
src/typeinfo.cpp
Index: src/typeinfo.cpp
===================================================================
--- src/typeinfo.cpp
+++ src/typeinfo.cpp
@@ -15,6 +15,44 @@
#include "typeinfo"
+#if defined(_WIN32)
+#include <string.h>
+
+const char *std::type_info::name(std::type_info::data *__data) {
+ // TODO(compnerd) cache demangled &__data.__decorated_name[1]
+ return &__data->__decorated_name[1];
+}
+
+size_t std::type_info::hash(const std::type_info::data *__data) {
+#if defined(_WIN64)
+ static constexpr const size_t fnv_offset_basis = 14695981039346656037ull;
+ static constexpr const size_t fnv_prime = 10995116282110ull;
+#else
+ static constexpr const size_t fnv_offset_basis = 2166136261ull;
+ static constexpr const size_t fnv_prime = 16777619ull;
+#endif
+
+ size_t value = fnv_offset_basis;
+ for (const char *c = &__data->__decorated_name[1]; *c; ++c) {
+ value ^= static_cast<size_t>(static_cast<unsigned char>(*c));
+ value *= fnv_prime;
+ }
+
+#if defined(_WIN64)
+ value ^= value >> 32;
+#endif
+
+ return value;
+}
+
+int std::type_info::compare(const std::type_info::data *__lhs,
+ const std::type_info::data *__rhs) {
+ if (__lhs == __rhs)
+ return 0;
+ return strcmp(&__lhs->__decorated_name[1], &__rhs->__decorated_name[1]);
+}
+#endif
+
#if !defined(LIBCXXRT) && !defined(_LIBCPPABI_VERSION)
std::type_info::~type_info()
Index: include/typeinfo
===================================================================
--- include/typeinfo
+++ include/typeinfo
@@ -72,6 +72,49 @@
namespace std // purposefully not using versioning namespace
{
+#if defined(_WIN32)
+class _LIBCPP_EXCEPTION_ABI type_info
+{
+ type_info & operator=(const type_info &) _LIBCPP_EQUAL_DELETE;
+ type_info (const type_info &) _LIBCPP_EQUAL_DELETE;
+
+ mutable struct data {
+ const char *__undecorated_name;
+ const char __decorated_name[1];
+ } __data;
+
+ static const char *name(type_info::data *__data);
+ static size_t hash(const type_info::data *__data);
+ static int compare(const type_info::data *__l, const type_info::data *__r);
+
+public:
+ virtual ~type_info() _NOEXCEPT;
+
+ _LIBCPP_INLINE_VISIBILITY
+ const char *name() const _NOEXCEPT {
+ return name(&__data);
+ }
+
+ _LIBCPP_INLINE_VISIBILITY
+ bool before(const type_info &__arg) const _NOEXCEPT {
+ return compare(&__data, &__arg.__data) < 0;
+ }
+
+ _LIBCPP_INLINE_VISIBILITY
+ size_t hash_code() const _NOEXCEPT {
+ return hash(&__data);
+ }
+
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator==(const type_info &__arg) const _NOEXCEPT {
+ return compare(&__data, &__arg.__data) == 0;
+ }
+
+ bool operator!=(const type_info &__arg) const _NOEXCEPT {
+ return compare(&__data, &__arg.__data) != 0;
+ }
+};
+#else
class _LIBCPP_EXCEPTION_ABI type_info
{
type_info& operator=(const type_info&);
@@ -148,6 +191,7 @@
{return __builtin_strcmp(name(), __arg.name());}
#endif
};
+#endif
class _LIBCPP_EXCEPTION_ABI bad_cast
: public exception
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