clang-tools-extra/clangd/unittests/TestWorkspace.cpp

   1 //===--- TestWorkspace.cpp - Utility for writing multi-file tests -*- C++-*===//
   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 "TestWorkspace.h"
  10 #include "clang-include-cleaner/Record.h"
  11 #include "index/FileIndex.h"
  12 #include "gtest/gtest.h"
  13 #include <memory>
  14 #include <optional>
  15
  16 namespace clang {
  17 namespace clangd {
  18
  19 std::unique_ptr<SymbolIndex> TestWorkspace::index() {
  20   auto Index = std::make_unique<FileIndex>(/*SupportContainedRefs=*/true);
  21   for (const auto &Input : Inputs) {
  22     if (!Input.second.IsMainFile)
  23       continue;
  24     TU.Code = Input.second.Code;
  25     TU.Filename = Input.first().str();
  26     TU.preamble([&](CapturedASTCtx ASTCtx,
  27                     std::shared_ptr<const include_cleaner::PragmaIncludes> PI) {
  28       auto &Ctx = ASTCtx.getASTContext();
  29       auto &PP = ASTCtx.getPreprocessor();
  30       Index->updatePreamble(testPath(Input.first()), "null", Ctx, PP, *PI);
  31     });
  32     ParsedAST MainAST = TU.build();
  33     Index->updateMain(testPath(Input.first()), MainAST);
  34   }
  35   return Index;
  36 }
  37
  38 std::optional<ParsedAST> TestWorkspace::openFile(llvm::StringRef Filename) {
  39   auto It = Inputs.find(Filename);
  40   if (It == Inputs.end()) {
  41     ADD_FAILURE() << "Accessing non-existing file: " << Filename;
  42     return std::nullopt;
  43   }
  44   TU.Code = It->second.Code;
  45   TU.Filename = It->first().str();
  46   return TU.build();
  47 }
  48
  49 void TestWorkspace::addInput(llvm::StringRef Filename,
  50                              const SourceFile &Input) {
  51   Inputs.insert(std::make_pair(Filename, Input));
  52   TU.AdditionalFiles.insert(std::make_pair(Filename, Input.Code));
  53 }
  54 } // namespace clangd
  55 } // namespace clang