1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
//===-- ModulesTests.cpp ---------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "TestFS.h"
#include "TestTU.h"
#include "llvm/ADT/StringRef.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <memory>
#include <string>
namespace clang {
namespace clangd {
namespace {
TEST(Modules, TextualIncludeInPreamble) {
TestTU TU = TestTU::withCode(R"cpp(
#include "Textual.h"
void foo() {}
)cpp");
TU.ExtraArgs.push_back("-fmodule-name=M");
TU.ExtraArgs.push_back("-fmodule-map-file=" + testPath("m.modulemap"));
TU.AdditionalFiles["Textual.h"] = "void foo();";
TU.AdditionalFiles["m.modulemap"] = R"modulemap(
module M {
module Textual {
textual header "Textual.h"
}
}
)modulemap";
// Test that we do not crash.
TU.index();
}
// Verify that visibility of AST nodes belonging to modules, but loaded from
// preamble PCH, is restored.
TEST(Modules, PreambleBuildVisibility) {
TestTU TU = TestTU::withCode(R"cpp(
#include "module.h"
foo x;
)cpp");
TU.OverlayRealFileSystemForModules = true;
TU.ExtraArgs.push_back("-fmodules");
TU.ExtraArgs.push_back("-fmodules-strict-decluse");
TU.ExtraArgs.push_back("-Xclang");
TU.ExtraArgs.push_back("-fmodules-local-submodule-visibility");
TU.ExtraArgs.push_back("-fmodule-map-file=" + testPath("m.modulemap"));
TU.AdditionalFiles["module.h"] = R"cpp(
typedef int foo;
)cpp";
TU.AdditionalFiles["m.modulemap"] = R"modulemap(
module M {
header "module.h"
}
)modulemap";
EXPECT_TRUE(TU.build().getDiagnostics().empty());
}
TEST(Modules, Diagnostic) {
// Produce a diagnostic while building an implicit module. Use
// -fmodules-strict-decluse, but any non-silenced diagnostic will do.
TestTU TU = TestTU::withCode(R"cpp(
/*error-ok*/
#include "modular.h"
void bar() {}
)cpp");
TU.OverlayRealFileSystemForModules = true;
TU.ExtraArgs.push_back("-fmodule-map-file=" + testPath("m.modulemap"));
TU.ExtraArgs.push_back("-fmodules");
TU.ExtraArgs.push_back("-fimplicit-modules");
TU.ExtraArgs.push_back("-fmodules-strict-decluse");
TU.AdditionalFiles["modular.h"] = R"cpp(
#include "non-modular.h"
)cpp";
TU.AdditionalFiles["non-modular.h"] = "";
TU.AdditionalFiles["m.modulemap"] = R"modulemap(
module M {
header "modular.h"
}
)modulemap";
// Test that we do not crash.
TU.build();
}
// Unknown module formats are a fatal failure for clang. Ensure we don't crash.
TEST(Modules, UnknownFormat) {
TestTU TU = TestTU::withCode(R"(#include "modular.h")");
TU.OverlayRealFileSystemForModules = true;
TU.ExtraArgs.push_back("-Xclang");
TU.ExtraArgs.push_back("-fmodule-format=obj");
TU.ExtraArgs.push_back("-fmodule-map-file=" + testPath("m.modulemap"));
TU.ExtraArgs.push_back("-fmodules");
TU.ExtraArgs.push_back("-fimplicit-modules");
TU.AdditionalFiles["modular.h"] = "";
TU.AdditionalFiles["m.modulemap"] = R"modulemap(
module M {
header "modular.h"
})modulemap";
// Test that we do not crash.
TU.build();
}
// Test that we can build and use a preamble for a module unit.
TEST(Modules, ModulePreamble) {
TestTU TU = TestTU::withCode(R"cpp(
module;
#define PREAMBLE_MACRO 1
export module foo;
#define MODULE_MACRO 2
module :private;
#define PRIVATE_MACRO 3
)cpp");
TU.ExtraArgs.push_back("-std=c++20");
TU.ExtraArgs.push_back("--precompile");
auto AST = TU.build();
auto &SM = AST.getSourceManager();
auto GetMacroFile = [&](llvm::StringRef Name) -> FileID {
if (auto *MI = AST.getPreprocessor().getMacroInfo(
&AST.getASTContext().Idents.get(Name)))
return SM.getFileID(MI->getDefinitionLoc());
return {};
};
EXPECT_EQ(GetMacroFile("PREAMBLE_MACRO"), SM.getPreambleFileID());
EXPECT_EQ(GetMacroFile("MODULE_MACRO"), SM.getMainFileID());
EXPECT_EQ(GetMacroFile("PRIVATE_MACRO"), SM.getMainFileID());
}
} // namespace
} // namespace clangd
} // namespace clang
|
