[clang-tools-extra] [clangd] Add includes from source to non-self-contained headers (PR #72479)
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Fri Nov 17 12:14:10 PST 2023
https://github.com/sr-tream updated https://github.com/llvm/llvm-project/pull/72479
>From bd6a6d0bd766813c770b47115c48333ad7a992cd Mon Sep 17 00:00:00 2001
From: SR_team <me at sr.team>
Date: Thu, 16 Nov 2023 07:15:10 +0200
Subject: [PATCH] Add includes from source to non-self-contained headers
---
clang-tools-extra/clangd/TUScheduler.cpp | 51 ++++++++++++++++++++++--
1 file changed, 48 insertions(+), 3 deletions(-)
diff --git a/clang-tools-extra/clangd/TUScheduler.cpp b/clang-tools-extra/clangd/TUScheduler.cpp
index 324ba1fc8cb8952..4602d7e8479214e 100644
--- a/clang-tools-extra/clangd/TUScheduler.cpp
+++ b/clang-tools-extra/clangd/TUScheduler.cpp
@@ -52,6 +52,7 @@
#include "Config.h"
#include "Diagnostics.h"
#include "GlobalCompilationDatabase.h"
+#include "HeaderSourceSwitch.h"
#include "ParsedAST.h"
#include "Preamble.h"
#include "clang-include-cleaner/Record.h"
@@ -64,6 +65,7 @@
#include "support/Threading.h"
#include "support/Trace.h"
#include "clang/Basic/Stack.h"
+#include "clang/Driver/Driver.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Tooling/CompilationDatabase.h"
#include "llvm/ADT/FunctionExtras.h"
@@ -881,10 +883,24 @@ void ASTWorker::update(ParseInputs Inputs, WantDiagnostics WantDiags,
}
}
}
- if (Cmd)
+ if (!Cmd)
+ Cmd = CDB.getFallbackCommand(FileName);
+ if (Cmd) {
+ if (!Inputs.CompileCommand.CommandLine.empty()) {
+ auto PosArg =
+ std::find(Cmd->CommandLine.begin(), Cmd->CommandLine.end(), "--");
+ auto UsePushBack = PosArg == Cmd->CommandLine.end();
+ Cmd->CommandLine.reserve(Cmd->CommandLine.size() +
+ Inputs.CompileCommand.CommandLine.size());
+ for (auto &&Arg : Inputs.CompileCommand.CommandLine) {
+ if (UsePushBack)
+ Cmd->CommandLine.push_back(std::move(Arg));
+ else
+ PosArg = std::next(Cmd->CommandLine.insert(PosArg, std::move(Arg)));
+ }
+ }
Inputs.CompileCommand = std::move(*Cmd);
- else
- Inputs.CompileCommand = CDB.getFallbackCommand(FileName);
+ }
bool InputsAreTheSame =
std::tie(FileInputs.CompileCommand, FileInputs.Contents) ==
@@ -1684,6 +1700,35 @@ bool TUScheduler::update(PathRef File, ParseInputs Inputs,
ContentChanged = true;
FD->Contents = Inputs.Contents;
}
+ if (isHeaderFile(File)) {
+ std::string SourceFile;
+ auto VFS = Inputs.TFS->view(Inputs.CompileCommand.Directory);
+ if (auto CorrespondingFile =
+ clang::clangd::getCorrespondingHeaderOrSource(File,
+ std::move(VFS)))
+ SourceFile = *CorrespondingFile;
+ if (SourceFile.empty())
+ SourceFile = HeaderIncluders->get(File);
+ if (!SourceFile.empty() && Files.contains(SourceFile)) {
+ std::unique_ptr<FileData> &FD = Files[SourceFile];
+ if (FD && FD->Worker->isASTCached()) {
+ if (auto AST = IdleASTs->take(FD->Worker.lock().get())) {
+ auto &Headers = AST.value()->getIncludeStructure().MainFileIncludes;
+ Inputs.CompileCommand.CommandLine.reserve(Headers.size());
+ for (const auto &H : Headers) {
+ if (H.Resolved == File) {
+ if (isSystem(H.FileKind))
+ Inputs.CompileCommand.CommandLine.clear();
+ break;
+ }
+ auto CmdLine = "-include" + H.Resolved;
+ Inputs.CompileCommand.CommandLine.push_back(std::move(CmdLine));
+ }
+ IdleASTs->put(FD->Worker.lock().get(), std::move(AST.value()));
+ }
+ }
+ }
+ }
FD->Worker->update(std::move(Inputs), WantDiags, ContentChanged);
// There might be synthetic update requests, don't change the LastActiveFile
// in such cases.
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