1 | //===- unittests/Frontend/CompilerInstanceTest.cpp - CI tests -------------===// |
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 | #include "flang/Frontend/CompilerInstance.h" |
10 | #include "flang/Frontend/TextDiagnosticPrinter.h" |
11 | #include "clang/Basic/DiagnosticOptions.h" |
12 | #include "llvm/Support/FileSystem.h" |
13 | |
14 | #include "gtest/gtest.h" |
15 | |
16 | using namespace llvm; |
17 | using namespace Fortran::frontend; |
18 | |
19 | namespace { |
20 | |
21 | TEST(CompilerInstance, SanityCheckForFileManager) { |
22 | const char *inputSource = "InputSourceFile" ; |
23 | std::string inputFile = "buffer-file-test.f" ; |
24 | std::error_code ec; |
25 | |
26 | // 1. Create the input file for the file manager |
27 | // AllSources (which is used to manage files inside every compiler instance), |
28 | // works with paths. This means that it requires a physical file. Create one. |
29 | std::unique_ptr<llvm::raw_fd_ostream> os{ |
30 | new llvm::raw_fd_ostream(inputFile, ec, llvm::sys::fs::OF_None)}; |
31 | if (ec) |
32 | FAIL() << "Failed to create the input file" ; |
33 | |
34 | // Populate the input file with the pre-defined input and flush it. |
35 | *(os) << inputSource; |
36 | os.reset(); |
37 | |
38 | // Get the path of the input file |
39 | llvm::SmallString<64> cwd; |
40 | if (std::error_code ec = llvm::sys::fs::current_path(result&: cwd)) |
41 | FAIL() << "Failed to obtain the current working directory" ; |
42 | std::string testFilePath(cwd.c_str()); |
43 | testFilePath += "/" + inputFile; |
44 | |
45 | // 2. Set up CompilerInstance (i.e. specify the input file) |
46 | std::string buf; |
47 | llvm::raw_string_ostream errorStream{buf}; |
48 | CompilerInstance compInst; |
49 | const Fortran::parser::SourceFile *sf = |
50 | compInst.getAllSources().Open(testFilePath, errorStream); |
51 | |
52 | // 3. Verify the content of the input file |
53 | // This is just a sanity check to make sure that CompilerInstance is capable |
54 | // of reading input files. |
55 | llvm::ArrayRef<char> fileContent = sf->content(); |
56 | EXPECT_FALSE(fileContent.size() == 0); |
57 | EXPECT_TRUE( |
58 | llvm::StringRef(fileContent.data()).starts_with("InputSourceFile" )); |
59 | |
60 | // 4. Delete the test file |
61 | ec = llvm::sys::fs::remove(path: inputFile); |
62 | if (ec) |
63 | FAIL() << "Failed to delete the test file" ; |
64 | } |
65 | |
66 | TEST(CompilerInstance, AllowDiagnosticLogWithUnownedDiagnosticConsumer) { |
67 | // 1. Set-up a basic DiagnosticConsumer |
68 | std::string diagnosticOutput; |
69 | llvm::raw_string_ostream diagnosticsOS(diagnosticOutput); |
70 | clang::DiagnosticOptions diagPrinterOpts; |
71 | auto diagPrinter = std::make_unique<Fortran::frontend::TextDiagnosticPrinter>( |
72 | diagnosticsOS, diagPrinterOpts); |
73 | |
74 | // 2. Create a CompilerInstance (to manage a DiagnosticEngine) |
75 | CompilerInstance compInst; |
76 | |
77 | // 3. Set-up DiagnosticOptions |
78 | clang::DiagnosticOptions diagOpts; |
79 | // Tell the diagnostics engine to emit the diagnostic log to STDERR. This |
80 | // ensures that a chained diagnostic consumer is created so that the test can |
81 | // exercise the unowned diagnostic consumer in a chained consumer. |
82 | diagOpts.DiagnosticLogFile = "-" ; |
83 | |
84 | // 4. Create a DiagnosticEngine with an unowned consumer |
85 | IntrusiveRefCntPtr<clang::DiagnosticsEngine> diags = |
86 | compInst.createDiagnostics(diagOpts, diagPrinter.get(), |
87 | /*ShouldOwnClient=*/false); |
88 | |
89 | // 5. Report a diagnostic |
90 | diags->Report(clang::diag::err_expected) << "no crash" ; |
91 | |
92 | // 6. Verify that the reported diagnostic wasn't lost and did end up in the |
93 | // output stream |
94 | ASSERT_EQ(diagnosticOutput, "error: expected no crash\n" ); |
95 | } |
96 | } // namespace |
97 | |