forked from OSchip/llvm-project
110 lines
3.5 KiB
C++
110 lines
3.5 KiB
C++
//===-- CollectMacrosTests.cpp ----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "Annotations.h"
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#include "CollectMacros.h"
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#include "Matchers.h"
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#include "SourceCode.h"
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#include "TestTU.h"
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#include "index/SymbolID.h"
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#include "clang/Basic/SourceLocation.h"
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#include "llvm/Support/ScopedPrinter.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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namespace clang {
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namespace clangd {
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namespace {
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using testing::UnorderedElementsAreArray;
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TEST(CollectMainFileMacros, SelectedMacros) {
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// References of the same symbol must have the ranges with the same
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// name(integer). If there are N different symbols then they must be named
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// from 1 to N. Macros for which SymbolID cannot be computed must be named
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// "Unknown".
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const char *Tests[] = {
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R"cpp(// Macros: Cursor on definition.
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#define $1[[FOO]](x,y) (x + y)
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int main() { int x = $1[[FOO]]($1[[FOO]](3, 4), $1[[FOO]](5, 6)); }
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)cpp",
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R"cpp(
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#define $1[[M]](X) X;
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#define $2[[abc]] 123
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int s = $1[[M]]($2[[abc]]);
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)cpp",
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// FIXME: Locating macro in duplicate definitions doesn't work. Enable
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// this once LocateMacro is fixed.
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// R"cpp(// Multiple definitions.
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// #define $1[[abc]] 1
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// int func1() { int a = $1[[abc]];}
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// #undef $1[[abc]]
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// #define $2[[abc]] 2
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// int func2() { int a = $2[[abc]];}
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// #undef $2[[abc]]
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// )cpp",
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R"cpp(
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#ifdef $Unknown[[UNDEFINED]]
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#endif
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)cpp",
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R"cpp(
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#ifndef $Unknown[[abc]]
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#define $1[[abc]]
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#ifdef $1[[abc]]
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#endif
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#endif
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)cpp",
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R"cpp(
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// Macros from token concatenations not included.
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#define $1[[CONCAT]](X) X##A()
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#define $2[[PREPEND]](X) MACRO##X()
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#define $3[[MACROA]]() 123
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int B = $1[[CONCAT]](MACRO);
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int D = $2[[PREPEND]](A)
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)cpp",
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R"cpp(
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// FIXME: Macro names in a definition are not detected.
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#define $1[[MACRO_ARGS2]](X, Y) X Y
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#define $2[[FOO]] BAR
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#define $3[[BAR]] 1
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int A = $2[[FOO]];
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)cpp"};
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for (const char *Test : Tests) {
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Annotations T(Test);
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auto AST = TestTU::withCode(T.code()).build();
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auto ActualMacroRefs = AST.getMacros();
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auto &SM = AST.getSourceManager();
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auto &PP = AST.getPreprocessor();
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// Known macros.
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for (int I = 1;; I++) {
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const auto ExpectedRefs = T.ranges(llvm::to_string(I));
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if (ExpectedRefs.empty())
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break;
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auto Loc = getBeginningOfIdentifier(ExpectedRefs.begin()->start, SM,
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AST.getLangOpts());
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auto Macro = locateMacroAt(Loc, PP);
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assert(Macro);
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auto SID = getSymbolID(Macro->Name, Macro->Info, SM);
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EXPECT_THAT(ExpectedRefs,
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UnorderedElementsAreArray(ActualMacroRefs.MacroRefs[*SID]))
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<< "Annotation=" << I << ", MacroName=" << Macro->Name
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<< ", Test = " << Test;
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}
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// Unkown macros.
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EXPECT_THAT(AST.getMacros().UnknownMacros,
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UnorderedElementsAreArray(T.ranges("Unknown")))
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<< "Unknown macros doesn't match in " << Test;
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}
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}
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} // namespace
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} // namespace clangd
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} // namespace clang
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