1 //===--- ExceptionSpecificationType.h ---------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief Defines the ExceptionSpecificationType enumeration and various
12 /// utility functions.
14 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_CLANG_BASIC_EXCEPTIONSPECIFICATIONTYPE_H
16 #define LLVM_CLANG_BASIC_EXCEPTIONSPECIFICATIONTYPE_H
20 /// \brief The various types of exception specifications that exist in C++11.
21 enum ExceptionSpecificationType {
22 EST_None, ///< no exception specification
23 EST_DynamicNone, ///< throw()
24 EST_Dynamic, ///< throw(T1, T2)
25 EST_MSAny, ///< Microsoft throw(...) extension
26 EST_BasicNoexcept, ///< noexcept
27 EST_ComputedNoexcept, ///< noexcept(expression)
28 EST_Unevaluated, ///< not evaluated yet, for special member function
29 EST_Uninstantiated, ///< not instantiated yet
30 EST_Unparsed ///< not parsed yet
33 inline bool isDynamicExceptionSpec(ExceptionSpecificationType ESpecType) {
34 return ESpecType >= EST_DynamicNone && ESpecType <= EST_MSAny;
37 inline bool isNoexceptExceptionSpec(ExceptionSpecificationType ESpecType) {
38 return ESpecType == EST_BasicNoexcept || ESpecType == EST_ComputedNoexcept;
41 inline bool isUnresolvedExceptionSpec(ExceptionSpecificationType ESpecType) {
42 return ESpecType == EST_Unevaluated || ESpecType == EST_Uninstantiated;
45 /// \brief Possible results from evaluation of a noexcept expression.
52 inline CanThrowResult mergeCanThrow(CanThrowResult CT1, CanThrowResult CT2) {
53 // CanThrowResult constants are ordered so that the maximum is the correct
55 return CT1 > CT2 ? CT1 : CT2;
58 } // end namespace clang
60 #endif // LLVM_CLANG_BASIC_EXCEPTIONSPECIFICATIONTYPE_H