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1 //===--- TestClangConfig.h ------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef LLVM_CLANG_TESTING_TESTCLANGCONFIG_H
10 #define LLVM_CLANG_TESTING_TESTCLANGCONFIG_H
11 
12 #include "clang/Testing/CommandLineArgs.h"
13 #include "llvm/Support/raw_ostream.h"
14 #include <string>
15 #include <vector>
16 
17 namespace clang {
18 
19 /// A Clang configuration for end-to-end tests that can be converted to
20 /// command line arguments for the driver.
21 ///
22 /// The configuration is represented as typed, named values, making it easier
23 /// and safer to work with compared to an array of string command line flags.
24 struct TestClangConfig {
25   TestLanguage Language;
26 
27   /// The argument of the `-target` command line flag.
28   std::string Target;
29 
isCTestClangConfig30   bool isC() const { return Language == Lang_C89 || Language == Lang_C99; }
31 
isC99OrLaterTestClangConfig32   bool isC99OrLater() const { return Language == Lang_C99; }
33 
isCXXTestClangConfig34   bool isCXX() const {
35     return Language == Lang_CXX03 || Language == Lang_CXX11 ||
36            Language == Lang_CXX14 || Language == Lang_CXX17 ||
37            Language == Lang_CXX20;
38   }
39 
isCXX11OrLaterTestClangConfig40   bool isCXX11OrLater() const {
41     return Language == Lang_CXX11 || Language == Lang_CXX14 ||
42            Language == Lang_CXX17 || Language == Lang_CXX20;
43   }
44 
isCXX14OrLaterTestClangConfig45   bool isCXX14OrLater() const {
46     return Language == Lang_CXX14 || Language == Lang_CXX17 ||
47            Language == Lang_CXX20;
48   }
49 
isCXX17OrLaterTestClangConfig50   bool isCXX17OrLater() const {
51     return Language == Lang_CXX17 || Language == Lang_CXX20;
52   }
53 
isCXX20OrLaterTestClangConfig54   bool isCXX20OrLater() const { return Language == Lang_CXX20; }
55 
supportsCXXDynamicExceptionSpecificationTestClangConfig56   bool supportsCXXDynamicExceptionSpecification() const {
57     return Language == Lang_CXX03 || Language == Lang_CXX11 ||
58            Language == Lang_CXX14;
59   }
60 
hasDelayedTemplateParsingTestClangConfig61   bool hasDelayedTemplateParsing() const {
62     return Target == "x86_64-pc-win32-msvc";
63   }
64 
getCommandLineArgsTestClangConfig65   std::vector<std::string> getCommandLineArgs() const {
66     std::vector<std::string> Result = getCommandLineArgsForTesting(Language);
67     Result.push_back("-target");
68     Result.push_back(Target);
69     return Result;
70   }
71 
toStringTestClangConfig72   std::string toString() const {
73     std::string Result;
74     llvm::raw_string_ostream OS(Result);
75     OS << "{ Language=" << Language << ", Target=" << Target << " }";
76     return OS.str();
77   }
78 
79   friend std::ostream &operator<<(std::ostream &OS,
80                                   const TestClangConfig &ClangConfig) {
81     return OS << ClangConfig.toString();
82   }
83 };
84 
85 } // end namespace clang
86 
87 #endif
88