This revision was automatically updated to reflect the committed changes.
Closed by commit rL299421: [clangd] Add code completion support (authored by
krasimir).
Changed prior to commit:
https://reviews.llvm.org/D31328?vs=92948&id=94026#toc
Repository:
rL LLVM
https://reviews.llvm.org/D31328
Files:
clang-tools-extra/trunk/clangd/ASTManager.cpp
clang-tools-extra/trunk/clangd/ASTManager.h
clang-tools-extra/trunk/clangd/ClangDMain.cpp
clang-tools-extra/trunk/clangd/Protocol.cpp
clang-tools-extra/trunk/clangd/Protocol.h
clang-tools-extra/trunk/clangd/ProtocolHandlers.cpp
clang-tools-extra/trunk/clangd/ProtocolHandlers.h
clang-tools-extra/trunk/test/clangd/completion.test
clang-tools-extra/trunk/test/clangd/formatting.test
Index: clang-tools-extra/trunk/clangd/Protocol.cpp
===================================================================
--- clang-tools-extra/trunk/clangd/Protocol.cpp
+++ clang-tools-extra/trunk/clangd/Protocol.cpp
@@ -570,3 +570,75 @@
}
return Result;
}
+
+llvm::Optional<TextDocumentPositionParams>
+TextDocumentPositionParams::parse(llvm::yaml::MappingNode *Params) {
+ TextDocumentPositionParams Result;
+ for (auto &NextKeyValue : *Params) {
+ auto *KeyString = dyn_cast<llvm::yaml::ScalarNode>(NextKeyValue.getKey());
+ if (!KeyString)
+ return llvm::None;
+
+ llvm::SmallString<10> KeyStorage;
+ StringRef KeyValue = KeyString->getValue(KeyStorage);
+ auto *Value =
+ dyn_cast_or_null<llvm::yaml::MappingNode>(NextKeyValue.getValue());
+ if (!Value)
+ return llvm::None;
+
+ llvm::SmallString<10> Storage;
+ if (KeyValue == "textDocument") {
+ auto Parsed = TextDocumentIdentifier::parse(Value);
+ if (!Parsed)
+ return llvm::None;
+ Result.textDocument = std::move(*Parsed);
+ } else if (KeyValue == "position") {
+ auto Parsed = Position::parse(Value);
+ if (!Parsed)
+ return llvm::None;
+ Result.position = std::move(*Parsed);
+ } else {
+ return llvm::None;
+ }
+ }
+ return Result;
+}
+
+std::string CompletionItem::unparse(const CompletionItem &CI) {
+ std::string Result = "{";
+ llvm::raw_string_ostream Os(Result);
+ assert(!CI.label.empty() && "completion item label is required");
+ Os << R"("label":")" << llvm::yaml::escape(CI.label) << R"(",)";
+ if (CI.kind != CompletionItemKind::Missing)
+ Os << R"("kind":)" << static_cast<int>(CI.kind) << R"(",)";
+ if (!CI.detail.empty())
+ Os << R"("detail":")" << llvm::yaml::escape(CI.detail) << R"(",)";
+ if (!CI.documentation.empty())
+ Os << R"("documentation":")" << llvm::yaml::escape(CI.documentation)
+ << R"(",)";
+ if (!CI.sortText.empty())
+ Os << R"("sortText":")" << llvm::yaml::escape(CI.sortText) << R"(",)";
+ if (!CI.filterText.empty())
+ Os << R"("filterText":")" << llvm::yaml::escape(CI.filterText) << R"(",)";
+ if (!CI.insertText.empty())
+ Os << R"("insertText":")" << llvm::yaml::escape(CI.insertText) << R"(",)";
+ if (CI.insertTextFormat != InsertTextFormat::Missing) {
+ Os << R"("insertTextFormat":")" << static_cast<int>(CI.insertTextFormat)
+ << R"(",)";
+ }
+ if (CI.textEdit)
+ Os << R"("textEdit":)" << TextEdit::unparse(*CI.textEdit) << ',';
+ if (!CI.additionalTextEdits.empty()) {
+ Os << R"("additionalTextEdits":[)";
+ for (const auto &Edit : CI.additionalTextEdits)
+ Os << TextEdit::unparse(Edit) << ",";
+ Os.flush();
+ // The list additionalTextEdits is guaranteed nonempty at this point.
+ // Replace the trailing comma with right brace.
+ Result.back() = ']';
+ }
+ Os.flush();
+ // Label is required, so Result is guaranteed to have a trailing comma.
+ Result.back() = '}';
+ return Result;
+}
Index: clang-tools-extra/trunk/clangd/ClangDMain.cpp
===================================================================
--- clang-tools-extra/trunk/clangd/ClangDMain.cpp
+++ clang-tools-extra/trunk/clangd/ClangDMain.cpp
@@ -61,6 +61,8 @@
llvm::make_unique<TextDocumentFormattingHandler>(Out, Store));
Dispatcher.registerHandler("textDocument/codeAction",
llvm::make_unique<CodeActionHandler>(Out, AST));
+ Dispatcher.registerHandler("textDocument/completion",
+ llvm::make_unique<CompletionHandler>(Out, AST));
while (std::cin.good()) {
// A Language Server Protocol message starts with a HTTP header, delimited
Index: clang-tools-extra/trunk/clangd/ProtocolHandlers.h
===================================================================
--- clang-tools-extra/trunk/clangd/ProtocolHandlers.h
+++ clang-tools-extra/trunk/clangd/ProtocolHandlers.h
@@ -36,7 +36,8 @@
"documentFormattingProvider": true,
"documentRangeFormattingProvider": true,
"documentOnTypeFormattingProvider": {"firstTriggerCharacter":"}","moreTriggerCharacter":[]},
- "codeActionProvider": true
+ "codeActionProvider": true,
+ "completionProvider": {"resolveProvider": false, "triggerCharacters": [".",">"]}
}}})");
}
};
@@ -114,6 +115,16 @@
ASTManager &AST;
};
+struct CompletionHandler : Handler {
+ CompletionHandler(JSONOutput &Output, ASTManager &AST)
+ : Handler(Output), AST(AST) {}
+
+ void handleMethod(llvm::yaml::MappingNode *Params, StringRef ID) override;
+
+ private:
+ ASTManager &AST;
+};
+
} // namespace clangd
} // namespace clang
Index: clang-tools-extra/trunk/clangd/ASTManager.h
===================================================================
--- clang-tools-extra/trunk/clangd/ASTManager.h
+++ clang-tools-extra/trunk/clangd/ASTManager.h
@@ -36,7 +36,13 @@
void onDocumentAdd(StringRef Uri) override;
// FIXME: Implement onDocumentRemove
- // FIXME: Implement codeComplete
+
+ /// Get code completions at a specified \p Line and \p Column in \p File.
+ ///
+ /// This function is thread-safe and returns completion items that own the
+ /// data they contain.
+ std::vector<CompletionItem> codeComplete(StringRef File, unsigned Line,
+ unsigned Column);
/// Get the fixes associated with a certain diagnostic as replacements.
///
@@ -59,16 +65,26 @@
/// database is cached for subsequent accesses.
clang::tooling::CompilationDatabase *
getOrCreateCompilationDatabaseForFile(StringRef Uri);
- // Craetes a new ASTUnit for the document at Uri.
+ // Creates a new ASTUnit for the document at Uri.
// FIXME: This calls chdir internally, which is thread unsafe.
std::unique_ptr<clang::ASTUnit>
createASTUnitForFile(StringRef Uri, const DocumentStore &Docs);
void runWorker();
void parseFileAndPublishDiagnostics(StringRef File);
/// Clang objects.
+
+ /// A map from Uri-s to ASTUnit-s. Guarded by \c ASTLock. ASTUnit-s are used
+ /// for generating diagnostics and fix-it-s asynchronously by the worker
+ /// thread and synchronously for code completion.
+ ///
+ /// TODO(krasimir): code completion should always have priority over parsing
+ /// for diagnostics.
llvm::StringMap<std::unique_ptr<clang::ASTUnit>> ASTs;
+ /// A lock for access to the map \c ASTs.
+ std::mutex ASTLock;
+
llvm::StringMap<std::unique_ptr<clang::tooling::CompilationDatabase>>
CompilationDatabases;
std::shared_ptr<clang::PCHContainerOperations> PCHs;
Index: clang-tools-extra/trunk/clangd/Protocol.h
===================================================================
--- clang-tools-extra/trunk/clangd/Protocol.h
+++ clang-tools-extra/trunk/clangd/Protocol.h
@@ -233,6 +233,113 @@
parse(llvm::yaml::MappingNode *Params);
};
+struct TextDocumentPositionParams {
+ /// The text document.
+ TextDocumentIdentifier textDocument;
+
+ /// The position inside the text document.
+ Position position;
+
+ static llvm::Optional<TextDocumentPositionParams>
+ parse(llvm::yaml::MappingNode *Params);
+};
+
+/// The kind of a completion entry.
+enum class CompletionItemKind {
+ Missing = 0,
+ Text = 1,
+ Method = 2,
+ Function = 3,
+ Constructor = 4,
+ Field = 5,
+ Variable = 6,
+ Class = 7,
+ Interface = 8,
+ Module = 9,
+ Property = 10,
+ Unit = 11,
+ Value = 12,
+ Enum = 13,
+ Keyword = 14,
+ Snippet = 15,
+ Color = 16,
+ File = 17,
+ Reference = 18,
+};
+
+/// Defines whether the insert text in a completion item should be interpreted
+/// as plain text or a snippet.
+enum class InsertTextFormat {
+ Missing = 0,
+ /// The primary text to be inserted is treated as a plain string.
+ PlainText = 1,
+ /// The primary text to be inserted is treated as a snippet.
+ ///
+ /// A snippet can define tab stops and placeholders with `$1`, `$2`
+ /// and `${3:foo}`. `$0` defines the final tab stop, it defaults to the end
+ /// of the snippet. Placeholders with equal identifiers are linked, that is
+ /// typing in one will update others too.
+ ///
+ /// See also:
+ /// https//github.com/Microsoft/vscode/blob/master/src/vs/editor/contrib/snippet/common/snippet.md
+ Snippet = 2,
+};
+
+struct CompletionItem {
+ /// The label of this completion item. By default also the text that is
+ /// inserted when selecting this completion.
+ std::string label;
+
+ /// The kind of this completion item. Based of the kind an icon is chosen by
+ /// the editor.
+ CompletionItemKind kind = CompletionItemKind::Missing;
+
+ /// A human-readable string with additional information about this item, like
+ /// type or symbol information.
+ std::string detail;
+
+ /// A human-readable string that represents a doc-comment.
+ std::string documentation;
+
+ /// A string that should be used when comparing this item with other items.
+ /// When `falsy` the label is used.
+ std::string sortText;
+
+ /// A string that should be used when filtering a set of completion items.
+ /// When `falsy` the label is used.
+ std::string filterText;
+
+ /// A string that should be inserted to a document when selecting this
+ /// completion. When `falsy` the label is used.
+ std::string insertText;
+
+ /// The format of the insert text. The format applies to both the `insertText`
+ /// property and the `newText` property of a provided `textEdit`.
+ InsertTextFormat insertTextFormat = InsertTextFormat::Missing;
+
+ /// An edit which is applied to a document when selecting this completion.
+ /// When an edit is provided `insertText` is ignored.
+ ///
+ /// Note: The range of the edit must be a single line range and it must
+ /// contain the position at which completion has been requested.
+ llvm::Optional<TextEdit> textEdit;
+
+ /// An optional array of additional text edits that are applied when selecting
+ /// this completion. Edits must not overlap with the main edit nor with
+ /// themselves.
+ std::vector<TextEdit> additionalTextEdits;
+
+ // TODO(krasimir): The following optional fields defined by the language
+ // server protocol are unsupported:
+ //
+ // command?: Command - An optional command that is executed *after* inserting
+ // this completion.
+ //
+ // data?: any - A data entry field that is preserved on a completion item
+ // between a completion and a completion resolve request.
+ static std::string unparse(const CompletionItem &P);
+};
+
} // namespace clangd
} // namespace clang
Index: clang-tools-extra/trunk/clangd/ProtocolHandlers.cpp
===================================================================
--- clang-tools-extra/trunk/clangd/ProtocolHandlers.cpp
+++ clang-tools-extra/trunk/clangd/ProtocolHandlers.cpp
@@ -178,3 +178,25 @@
R"(, "result": [)" + Commands +
R"(]})");
}
+
+void CompletionHandler::handleMethod(llvm::yaml::MappingNode *Params,
+ StringRef ID) {
+ auto TDPP = TextDocumentPositionParams::parse(Params);
+ if (!TDPP) {
+ Output.log("Failed to decode TextDocumentPositionParams!\n");
+ return;
+ }
+
+ auto Items = AST.codeComplete(TDPP->textDocument.uri, TDPP->position.line,
+ TDPP->position.character);
+ std::string Completions;
+ for (const auto &Item : Items) {
+ Completions += CompletionItem::unparse(Item);
+ Completions += ",";
+ }
+ if (!Completions.empty())
+ Completions.pop_back();
+ writeMessage(
+ R"({"jsonrpc":"2.0","id":)" + ID.str() +
+ R"(,"result":[)" + Completions + R"(]})");
+}
Index: clang-tools-extra/trunk/clangd/ASTManager.cpp
===================================================================
--- clang-tools-extra/trunk/clangd/ASTManager.cpp
+++ clang-tools-extra/trunk/clangd/ASTManager.cpp
@@ -83,50 +83,54 @@
}
void ASTManager::parseFileAndPublishDiagnostics(StringRef File) {
- auto &Unit = ASTs[File]; // Only one thread can access this at a time.
+ DiagnosticToReplacementMap LocalFixIts; // Temporary storage
+ std::string Diagnostics;
+ {
+ std::lock_guard<std::mutex> ASTGuard(ASTLock);
+ auto &Unit = ASTs[File]; // Only one thread can access this at a time.
- if (!Unit) {
- Unit = createASTUnitForFile(File, this->Store);
- } else {
- // Do a reparse if this wasn't the first parse.
- // FIXME: This might have the wrong working directory if it changed in the
- // meantime.
- Unit->Reparse(PCHs, getRemappedFiles(this->Store));
- }
+ if (!Unit) {
+ Unit = createASTUnitForFile(File, this->Store);
+ } else {
+ // Do a reparse if this wasn't the first parse.
+ // FIXME: This might have the wrong working directory if it changed in the
+ // meantime.
+ Unit->Reparse(PCHs, getRemappedFiles(this->Store));
+ }
- if (!Unit)
- return;
+ if (!Unit)
+ return;
- // Send the diagnotics to the editor.
- // FIXME: If the diagnostic comes from a different file, do we want to
- // show them all? Right now we drop everything not coming from the
- // main file.
- std::string Diagnostics;
- DiagnosticToReplacementMap LocalFixIts; // Temporary storage
- for (ASTUnit::stored_diag_iterator D = Unit->stored_diag_begin(),
- DEnd = Unit->stored_diag_end();
- D != DEnd; ++D) {
- if (!D->getLocation().isValid() ||
- !D->getLocation().getManager().isInMainFile(D->getLocation()))
- continue;
- Position P;
- P.line = D->getLocation().getSpellingLineNumber() - 1;
- P.character = D->getLocation().getSpellingColumnNumber();
- Range R = {P, P};
- Diagnostics +=
- R"({"range":)" + Range::unparse(R) +
- R"(,"severity":)" + std::to_string(getSeverity(D->getLevel())) +
- R"(,"message":")" + llvm::yaml::escape(D->getMessage()) +
- R"("},)";
-
- // We convert to Replacements to become independent of the SourceManager.
- clangd::Diagnostic Diag = {R, getSeverity(D->getLevel()), D->getMessage()};
- auto &FixItsForDiagnostic = LocalFixIts[Diag];
- for (const FixItHint &Fix : D->getFixIts()) {
- FixItsForDiagnostic.push_back(clang::tooling::Replacement(
- Unit->getSourceManager(), Fix.RemoveRange, Fix.CodeToInsert));
+ // Send the diagnotics to the editor.
+ // FIXME: If the diagnostic comes from a different file, do we want to
+ // show them all? Right now we drop everything not coming from the
+ // main file.
+ for (ASTUnit::stored_diag_iterator D = Unit->stored_diag_begin(),
+ DEnd = Unit->stored_diag_end();
+ D != DEnd; ++D) {
+ if (!D->getLocation().isValid() ||
+ !D->getLocation().getManager().isInMainFile(D->getLocation()))
+ continue;
+ Position P;
+ P.line = D->getLocation().getSpellingLineNumber() - 1;
+ P.character = D->getLocation().getSpellingColumnNumber();
+ Range R = {P, P};
+ Diagnostics +=
+ R"({"range":)" + Range::unparse(R) +
+ R"(,"severity":)" + std::to_string(getSeverity(D->getLevel())) +
+ R"(,"message":")" + llvm::yaml::escape(D->getMessage()) +
+ R"("},)";
+
+ // We convert to Replacements to become independent of the SourceManager.
+ clangd::Diagnostic Diag = {R, getSeverity(D->getLevel()),
+ D->getMessage()};
+ auto &FixItsForDiagnostic = LocalFixIts[Diag];
+ for (const FixItHint &Fix : D->getFixIts()) {
+ FixItsForDiagnostic.push_back(clang::tooling::Replacement(
+ Unit->getSourceManager(), Fix.RemoveRange, Fix.CodeToInsert));
+ }
}
- }
+ } // unlock ASTLock
// Put FixIts into place.
{
@@ -232,3 +236,79 @@
return I->second;
return {};
}
+
+namespace {
+
+class CompletionItemsCollector : public CodeCompleteConsumer {
+ std::vector<CompletionItem> *Items;
+ std::shared_ptr<clang::GlobalCodeCompletionAllocator> Allocator;
+ CodeCompletionTUInfo CCTUInfo;
+
+public:
+ CompletionItemsCollector(std::vector<CompletionItem> *Items,
+ const CodeCompleteOptions &CodeCompleteOpts)
+ : CodeCompleteConsumer(CodeCompleteOpts, /*OutputIsBinary=*/false),
+ Items(Items),
+ Allocator(std::make_shared<clang::GlobalCodeCompletionAllocator>()),
+ CCTUInfo(Allocator) {}
+
+ void ProcessCodeCompleteResults(Sema &S, CodeCompletionContext Context,
+ CodeCompletionResult *Results,
+ unsigned NumResults) override {
+ for (unsigned I = 0; I != NumResults; ++I) {
+ CodeCompletionString *CCS = Results[I].CreateCodeCompletionString(
+ S, Context, *Allocator, CCTUInfo,
+ CodeCompleteOpts.IncludeBriefComments);
+ if (CCS) {
+ CompletionItem Item;
+ assert(CCS->getTypedText());
+ Item.label = CCS->getTypedText();
+ if (CCS->getBriefComment())
+ Item.documentation = CCS->getBriefComment();
+ Items->push_back(std::move(Item));
+ }
+ }
+ }
+
+ GlobalCodeCompletionAllocator &getAllocator() override { return *Allocator; }
+
+ CodeCompletionTUInfo &getCodeCompletionTUInfo() override { return CCTUInfo; }
+};
+
+} // namespace
+
+std::vector<CompletionItem>
+ASTManager::codeComplete(StringRef Uri, unsigned Line, unsigned Column) {
+ CodeCompleteOptions CCO;
+ CCO.IncludeBriefComments = 1;
+ // This is where code completion stores dirty buffers. Need to free after
+ // completion.
+ SmallVector<const llvm::MemoryBuffer *, 4> OwnedBuffers;
+ SmallVector<StoredDiagnostic, 4> StoredDiagnostics;
+ IntrusiveRefCntPtr<DiagnosticsEngine> DiagEngine(
+ new DiagnosticsEngine(new DiagnosticIDs, new DiagnosticOptions));
+ std::vector<CompletionItem> Items;
+ CompletionItemsCollector Collector(&Items, CCO);
+ std::lock_guard<std::mutex> Guard(ASTLock);
+ auto &Unit = ASTs[Uri];
+ if (!Unit)
+ Unit = createASTUnitForFile(Uri, this->Store);
+ if (!Unit)
+ return {};
+ IntrusiveRefCntPtr<SourceManager> SourceMgr(
+ new SourceManager(*DiagEngine, Unit->getFileManager()));
+ StringRef File(Uri);
+ File.consume_front("file://");
+ // CodeComplete seems to require fresh LangOptions.
+ LangOptions LangOpts = Unit->getLangOpts();
+ // The language server protocol uses zero-based line and column numbers.
+ // The clang code completion uses one-based numbers.
+ Unit->CodeComplete(File, Line + 1, Column + 1, getRemappedFiles(this->Store),
+ CCO.IncludeMacros, CCO.IncludeCodePatterns,
+ CCO.IncludeBriefComments, Collector, PCHs, *DiagEngine,
+ LangOpts, *SourceMgr, Unit->getFileManager(),
+ StoredDiagnostics, OwnedBuffers);
+ for (const llvm::MemoryBuffer *Buffer : OwnedBuffers)
+ delete Buffer;
+ return Items;
+}
Index: clang-tools-extra/trunk/test/clangd/formatting.test
===================================================================
--- clang-tools-extra/trunk/test/clangd/formatting.test
+++ clang-tools-extra/trunk/test/clangd/formatting.test
@@ -4,13 +4,14 @@
Content-Length: 125
{"jsonrpc":"2.0","id":0,"method":"initialize","params":{"processId":123,"rootPath":"clangd","capabilities":{},"trace":"off"}}
-# CHECK: Content-Length: 332
+# CHECK: Content-Length: 424
# CHECK: {"jsonrpc":"2.0","id":0,"result":{"capabilities":{
# CHECK: "textDocumentSync": 1,
# CHECK: "documentFormattingProvider": true,
# CHECK: "documentRangeFormattingProvider": true,
# CHECK: "documentOnTypeFormattingProvider": {"firstTriggerCharacter":"}","moreTriggerCharacter":[]},
-# CHECK: "codeActionProvider": true
+# CHECK: "codeActionProvider": true,
+# CHECK: "completionProvider": {"resolveProvider": false, "triggerCharacters": [".",">"]}
# CHECK: }}}
#
Content-Length: 193
Index: clang-tools-extra/trunk/test/clangd/completion.test
===================================================================
--- clang-tools-extra/trunk/test/clangd/completion.test
+++ clang-tools-extra/trunk/test/clangd/completion.test
@@ -0,0 +1,69 @@
+# RUN: clangd -run-synchronously < %s | FileCheck %s
+# It is absolutely vital that this file has CRLF line endings.
+#
+Content-Length: 125
+
+{"jsonrpc":"2.0","id":0,"method":"initialize","params":{"processId":123,"rootPath":"clangd","capabilities":{},"trace":"off"}}
+
+Content-Length: 208
+
+{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"file:///main.cpp","languageId":"cpp","version":1,"text":"#include <vector>\nint main() {\n std::vector<int> v;\n v.\n}\n"}}}
+
+Content-Length: 148
+
+{"jsonrpc":"2.0","id":1,"method":"textDocument/completion","params":{"textDocument":{"uri":"file:///main.cpp"},"position":{"line":3,"character":4}}}
+# The order of results returned by ASTUnit CodeComplete seems to be
+# nondeterministic, so we check regardless of order.
+#
+# CHECK: {"jsonrpc":"2.0","id":1,"result":[
+# CHECK-DAG: {"label":"_M_allocate"}
+# CHECK-DAG: {"label":"_M_allocate_and_copy"}
+# CHECK-DAG: {"label":"_M_assign_aux"}
+# CHECK-DAG: {"label":"_M_assign_dispatch"}
+# CHECK-DAG: {"label":"_M_check_len"}
+# CHECK-DAG: {"label":"_M_create_storage"
+# CHECK-DAG: {"label":"_M_deallocate"}
+# CHECK-DAG: {"label":"_M_erase_at_end"}
+# CHECK-DAG: {"label":"_M_fill_assign"}
+# CHECK-DAG: {"label":"_M_fill_initialize"}
+# CHECK-DAG: {"label":"_M_fill_insert"}
+# CHECK-DAG: {"label":"_M_get_Tp_allocator"}
+# CHECK-DAG: {"label":"_M_impl"}
+# CHECK-DAG: {"label":"_M_initialize_dispatch"}
+# CHECK-DAG: {"label":"_M_insert_aux"}
+# CHECK-DAG: {"label":"_M_insert_dispatch"}
+# CHECK-DAG: {"label":"_M_range_check"}
+# CHECK-DAG: {"label":"_M_range_initialize"}
+# CHECK-DAG: {"label":"_M_range_insert"}
+# CHECK-DAG: {"label":"_Vector_base"}
+# CHECK-DAG: {"label":"assign"}
+# CHECK-DAG: {"label":"at"}
+# CHECK-DAG: {"label":"back"}
+# CHECK-DAG: {"label":"begin"}
+# CHECK-DAG: {"label":"capacity"}
+# CHECK-DAG: {"label":"clear"}
+# CHECK-DAG: {"label":"data"}
+# CHECK-DAG: {"label":"empty"}
+# CHECK-DAG: {"label":"end"}
+# CHECK-DAG: {"label":"erase"}
+# CHECK-DAG: {"label":"front"}
+# CHECK-DAG: {"label":"get_allocator"}
+# CHECK-DAG: {"label":"insert"}
+# CHECK-DAG: {"label":"max_size"}
+# CHECK-DAG: {"label":"operator="}
+# CHECK-DAG: {"label":"operator[]"}
+# CHECK-DAG: {"label":"pop_back"}
+# CHECK-DAG: {"label":"push_back"}
+# CHECK-DAG: {"label":"rbegin"}
+# CHECK-DAG: {"label":"rend"}
+# CHECK-DAG: {"label":"reserve"}
+# CHECK-DAG: {"label":"resize"}
+# CHECK-DAG: {"label":"size"}
+# CHECK-DAG: {"label":"swap"}
+# CHECK-DAG: {"label":"vector"}
+# CHECK-DAG: {"label":"~_Vector_base"}
+# CHECK-DAG: {"label":"~vector"}
+# CHECK: ]}
+Content-Length: 44
+
+{"jsonrpc":"2.0","id":3,"method":"shutdown"}
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