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| author | Chris Lattner <sabre@nondot.org> | 2002-07-23 17:56:53 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2002-07-23 17:56:53 +0000 |
| commit | c1b5d092a0f89db5356ae79d8cc4213118f230dd (patch) | |
| tree | 4b0c9531f31baf1a2c974fa95a94d504d093cc2e /include/Support | |
| parent | 6dc0193e68dfd35588c5f3c7a941c1ca505d5629 (diff) | |
| download | external_llvm-c1b5d092a0f89db5356ae79d8cc4213118f230dd.zip external_llvm-c1b5d092a0f89db5356ae79d8cc4213118f230dd.tar.gz external_llvm-c1b5d092a0f89db5356ae79d8cc4213118f230dd.tar.bz2 | |
Initial checkin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3005 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/Support')
| -rw-r--r-- | include/Support/TypeInfo.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/Support/TypeInfo.h b/include/Support/TypeInfo.h new file mode 100644 index 0000000..29f4e22 --- /dev/null +++ b/include/Support/TypeInfo.h @@ -0,0 +1,65 @@ +//===- Support/TypeInfo.h - Support class for type_info objects --*- C++ -*--=// +// +// This class makes std::type_info objects behave like first class objects that +// can be put in maps and hashtables. This code is based off of code in the +// Loki C++ library from the Modern C++ Design book. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_SUPPORT_TYPEINFO_H +#define LLVM_SUPPORT_TYPEINFO_H + +#include <typeinfo> + +struct TypeInfo { + TypeInfo() { // needed for containers + struct Nil {}; // Anonymous class distinct from all others... + Info = &typeid(Nil); + } + + TypeInfo(const std::type_info &ti) : Info(&ti) { // non-explicit + } + + // Access for the wrapped std::type_info + const std::type_info &get() const { + return *Info; + } + + // Compatibility functions + bool before(const TypeInfo &rhs) const { + return Info->before(*rhs.Info); + } + const char *getClassName() const { + return Info->name(); + } + +private: + const std::type_info *Info; +}; + +// Comparison operators +inline bool operator==(const TypeInfo &lhs, const TypeInfo &rhs) { + return lhs.get() == rhs.get(); +} + +inline bool operator<(const TypeInfo &lhs, const TypeInfo &rhs) { + return lhs.before(rhs); +} + +inline bool operator!=(const TypeInfo &lhs, const TypeInfo &rhs) { + return !(lhs == rhs); +} + +inline bool operator>(const TypeInfo &lhs, const TypeInfo &rhs) { + return rhs < lhs; +} + +inline bool operator<=(const TypeInfo &lhs, const TypeInfo &rhs) { + return !(lhs > rhs); +} + +inline bool operator>=(const TypeInfo &lhs, const TypeInfo &rhs) { + return !(lhs < rhs); +} + +#endif |