nridge created this revision.
nridge added a reviewer: sammccall.
Herald added subscribers: cfe-commits, kadircet, arphaman, jkorous, MaskRay,
ilya-biryukov.
Herald added a project: clang.
This allows the client to resolve subtypes one level at a time.
For supertypes, this is not necessary, because we eagerly compute
supertypes and return all levels.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D64308
Files:
clang-tools-extra/clangd/ClangdLSPServer.cpp
clang-tools-extra/clangd/ClangdLSPServer.h
clang-tools-extra/clangd/ClangdServer.cpp
clang-tools-extra/clangd/ClangdServer.h
clang-tools-extra/clangd/Protocol.cpp
clang-tools-extra/clangd/Protocol.h
clang-tools-extra/clangd/XRefs.cpp
clang-tools-extra/clangd/XRefs.h
clang-tools-extra/clangd/test/type-hierarchy.test
Index: clang-tools-extra/clangd/test/type-hierarchy.test
===================================================================
--- clang-tools-extra/clangd/test/type-hierarchy.test
+++ clang-tools-extra/clangd/test/type-hierarchy.test
@@ -1,7 +1,7 @@
# RUN: clangd -lit-test < %s | FileCheck -strict-whitespace %s
{"jsonrpc":"2.0","id":0,"method":"initialize","params":{"processId":123,"rootPath":"clangd","capabilities":{},"trace":"off"}}
---
-{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"test:///main.cpp","languageId":"cpp","version":1,"text":"struct Parent {};\nstruct Child1 : Parent {};\nstruct Child2 : Child1 {};\nstruct Child3 : Child2 {};"}}}
+{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"test:///main.cpp","languageId":"cpp","version":1,"text":"struct Parent {};\nstruct Child1 : Parent {};\nstruct Child2 : Child1 {};\nstruct Child3 : Child2 {};\nstruct Child4 : Child3 {};"}}}
---
{"jsonrpc":"2.0","id":1,"method":"textDocument/typeHierarchy","params":{"textDocument":{"uri":"test:///main.cpp"},"position":{"line":2,"character":11},"direction":2,"resolve":1}}
# CHECK: "id": 1
@@ -9,6 +9,7 @@
# CHECK-NEXT: "result": {
# CHECK-NEXT: "children": [
# CHECK-NEXT: {
+# CHECK-NEXT: "data": "A6576FE083F2949A",
# CHECK-NEXT: "kind": 23,
# CHECK-NEXT: "name": "Child3",
# CHECK-NEXT: "range": {
@@ -114,6 +115,64 @@
# CHECK-NEXT: "uri": "file:///clangd-test/main.cpp"
# CHECK-NEXT: }
---
-{"jsonrpc":"2.0","id":2,"method":"shutdown"}
+{"jsonrpc":"2.0","id":2,"method":"typeHierarchy/resolve","params":{"item":{"uri":"test:///main.cpp","data":"A6576FE083F2949A","name":"Child3","kind":23,"range":{"end":{"character":13,"line":3},"start":{"character":7,"line":3}},"selectionRange":{"end":{"character":13,"line":3},"start":{"character":7,"line":3}}},"direction":0,"resolve":1}}
+# CHECK: "id": 2
+# CHECK-NEXT: "jsonrpc": "2.0",
+# CHECK-NEXT: "result": {
+# CHECK-NEXT: "children": [
+# CHECK-NEXT: {
+# CHECK-NEXT: "data": "5705B382DFC77CBC",
+# CHECK-NEXT: "kind": 23,
+# CHECK-NEXT: "name": "Child4",
+# CHECK-NEXT: "range": {
+# CHECK-NEXT: "end": {
+# CHECK-NEXT: "character": 13,
+# CHECK-NEXT: "line": 4
+# CHECK-NEXT: },
+# CHECK-NEXT: "start": {
+# CHECK-NEXT: "character": 7,
+# CHECK-NEXT: "line": 4
+# CHECK-NEXT: }
+# CHECK-NEXT: },
+# CHECK-NEXT: "selectionRange": {
+# CHECK-NEXT: "end": {
+# CHECK-NEXT: "character": 13,
+# CHECK-NEXT: "line": 4
+# CHECK-NEXT: },
+# CHECK-NEXT: "start": {
+# CHECK-NEXT: "character": 7,
+# CHECK-NEXT: "line": 4
+# CHECK-NEXT: }
+# CHECK-NEXT: },
+# CHECK-NEXT: "uri": "file:///clangd-test/main.cpp"
+# CHECK-NEXT: }
+# CHECK-NEXT: ],
+# CHECK-NEXT: "data": "A6576FE083F2949A",
+# CHECK-NEXT: "kind": 23,
+# CHECK-NEXT: "name": "Child3",
+# CHECK-NEXT: "range": {
+# CHECK-NEXT: "end": {
+# CHECK-NEXT: "character": 13,
+# CHECK-NEXT: "line": 3
+# CHECK-NEXT: },
+# CHECK-NEXT: "start": {
+# CHECK-NEXT: "character": 7,
+# CHECK-NEXT: "line": 3
+# CHECK-NEXT: }
+# CHECK-NEXT: },
+# CHECK-NEXT: "selectionRange": {
+# CHECK-NEXT: "end": {
+# CHECK-NEXT: "character": 13,
+# CHECK-NEXT: "line": 3
+# CHECK-NEXT: },
+# CHECK-NEXT: "start": {
+# CHECK-NEXT: "character": 7,
+# CHECK-NEXT: "line": 3
+# CHECK-NEXT: }
+# CHECK-NEXT: },
+# CHECK-NEXT: "uri": "file:///clangd-test/main.cpp"
+# CHECK-NEXT: }
+---
+{"jsonrpc":"2.0","id":3,"method":"shutdown"}
---
{"jsonrpc":"2.0","method":"exit"}
Index: clang-tools-extra/clangd/XRefs.h
===================================================================
--- clang-tools-extra/clangd/XRefs.h
+++ clang-tools-extra/clangd/XRefs.h
@@ -140,6 +140,11 @@
ParsedAST &AST, Position Pos, int Resolve, TypeHierarchyDirection Direction,
const SymbolIndex *Index = nullptr, PathRef TUPath = PathRef{});
+llvm::Optional<TypeHierarchyItem>
+resolveTypeHierarchy(TypeHierarchyItem Item, int ResolveLevels,
+ TypeHierarchyDirection Direction,
+ const SymbolIndex *Index);
+
} // namespace clangd
} // namespace clang
Index: clang-tools-extra/clangd/XRefs.cpp
===================================================================
--- clang-tools-extra/clangd/XRefs.cpp
+++ clang-tools-extra/clangd/XRefs.cpp
@@ -1065,6 +1065,10 @@
// (https://github.com/clangd/clangd/issues/59).
THI.range = THI.selectionRange;
THI.uri = Loc->uri;
+ // Store the SymbolID in the 'data' field. The client will
+ // send this back in typeHierarchy/resolve, allowing us to
+ // continue resolving additional levels of the type hierarchy.
+ THI.data = S.ID.str();
return std::move(THI);
}
@@ -1208,6 +1212,28 @@
return Result;
}
+llvm::Optional<TypeHierarchyItem>
+resolveTypeHierarchy(TypeHierarchyItem Item, int ResolveLevels,
+ TypeHierarchyDirection Direction,
+ const SymbolIndex *Index) {
+ // We only support typeHierarchy/resolve for children, because for parents
+ // we ignore ResolveLevels and return all levels of parents eagerly.
+ if (Direction == TypeHierarchyDirection::Parents || ResolveLevels == 0)
+ return llvm::None;
+
+ Item.children.emplace();
+
+ if (Index && Item.data) {
+ // We store the item's SymbolID in the 'data' field, and the client
+ // passes it back to us in typeHierarchy/resolve.
+ if (Expected<SymbolID> ID = SymbolID::fromStr(*Item.data)) {
+ fillSubTypes(*ID, *Item.children, Index, ResolveLevels, Item.uri.file());
+ }
+ }
+
+ return Item;
+}
+
FormattedString HoverInfo::present() const {
FormattedString Output;
if (NamespaceScope) {
Index: clang-tools-extra/clangd/Protocol.h
===================================================================
--- clang-tools-extra/clangd/Protocol.h
+++ clang-tools-extra/clangd/Protocol.h
@@ -1119,7 +1119,7 @@
SymbolKind kind;
/// `true` if the hierarchy item is deprecated. Otherwise, `false`.
- bool deprecated;
+ bool deprecated = false;
/// The URI of the text document where this type hierarchy item belongs to.
URIForFile uri;
@@ -1145,13 +1145,26 @@
/// descendants. If not defined, the children have not been resolved.
llvm::Optional<std::vector<TypeHierarchyItem>> children;
- /// The protocol has a slot here for an optional 'data' filed, which can
- /// be used to identify a type hierarchy item in a resolve request. We don't
- /// need this (the item itself is sufficient to identify what to resolve)
- /// so don't declare it.
+ /// An optional 'data' filed, which can be used to identify a type hierarchy
+ /// item in a resolve request.
+ llvm::Optional<std::string> data;
};
llvm::json::Value toJSON(const TypeHierarchyItem &);
llvm::raw_ostream &operator<<(llvm::raw_ostream &, const TypeHierarchyItem &);
+bool fromJSON(const llvm::json::Value &, TypeHierarchyItem &);
+
+/// Parameters for the `typeHierarchy/resolve` request.
+struct ResolveTypeHierarchyItemParams {
+ /// The item to resolve.
+ TypeHierarchyItem item;
+
+ /// The hierarchy levels to resolve. `0` indicates no level.
+ int resolve;
+
+ /// The direction of the hierarchy levels to resolve.
+ TypeHierarchyDirection direction;
+};
+bool fromJSON(const llvm::json::Value &, ResolveTypeHierarchyItemParams &);
struct ReferenceParams : public TextDocumentPositionParams {
// For now, no options like context.includeDeclaration are supported.
Index: clang-tools-extra/clangd/Protocol.cpp
===================================================================
--- clang-tools-extra/clangd/Protocol.cpp
+++ clang-tools-extra/clangd/Protocol.cpp
@@ -421,8 +421,7 @@
bool fromJSON(const llvm::json::Value &Params,
DocumentRangeFormattingParams &R) {
llvm::json::ObjectMapper O(Params);
- return O && O.map("textDocument", R.textDocument) &&
- O.map("range", R.range);
+ return O && O.map("textDocument", R.textDocument) && O.map("range", R.range);
}
bool fromJSON(const llvm::json::Value &Params,
@@ -444,8 +443,8 @@
llvm::json::Value toJSON(const DiagnosticRelatedInformation &DRI) {
return llvm::json::Object{
- {"location", DRI.location},
- {"message", DRI.message},
+ {"location", DRI.location},
+ {"message", DRI.message},
};
}
@@ -977,6 +976,8 @@
Result["parents"] = I.parents;
if (I.children)
Result["children"] = I.children;
+ if (I.data)
+ Result["data"] = I.data;
return std::move(Result);
}
@@ -995,10 +996,18 @@
O.map("deprecated", I.deprecated);
O.map("parents", I.parents);
O.map("children", I.children);
+ O.map("data", I.data);
return true;
}
+bool fromJSON(const llvm::json::Value &Params,
+ ResolveTypeHierarchyItemParams &P) {
+ llvm::json::ObjectMapper O(Params);
+ return O && O.map("item", P.item) && O.map("resolve", P.resolve) &&
+ O.map("direction", P.direction);
+}
+
bool fromJSON(const llvm::json::Value &Params, ReferenceParams &R) {
TextDocumentPositionParams &Base = R;
return fromJSON(Params, Base);
Index: clang-tools-extra/clangd/ClangdServer.h
===================================================================
--- clang-tools-extra/clangd/ClangdServer.h
+++ clang-tools-extra/clangd/ClangdServer.h
@@ -142,7 +142,8 @@
bool SemanticHighlighting = false;
/// Returns true if the StringRef is a tweak that should be enabled
- std::function<bool(llvm::StringRef)> TweakFilter = [](llvm::StringRef TweakToSearch) {return true;};
+ std::function<bool(llvm::StringRef)> TweakFilter =
+ [](llvm::StringRef TweakToSearch) { return true; };
};
// Sensible default options for use in tests.
// Features like indexing must be enabled if desired.
@@ -216,6 +217,11 @@
TypeHierarchyDirection Direction,
Callback<llvm::Optional<TypeHierarchyItem>> CB);
+ /// Resolve type hierarchy item in the given direction.
+ void resolveTypeHierarchy(TypeHierarchyItem Item, int Resolve,
+ TypeHierarchyDirection Direction,
+ Callback<llvm::Optional<TypeHierarchyItem>> CB);
+
/// Retrieve the top symbols from the workspace matching a query.
void workspaceSymbols(StringRef Query, int Limit,
Callback<std::vector<SymbolInformation>> CB);
@@ -316,7 +322,7 @@
// can be caused by missing includes (e.g. member access in incomplete type).
bool SuggestMissingIncludes = false;
bool EnableHiddenFeatures = false;
-
+
std::function<bool(llvm::StringRef)> TweakFilter;
// GUARDED_BY(CachedCompletionFuzzyFindRequestMutex)
Index: clang-tools-extra/clangd/ClangdServer.cpp
===================================================================
--- clang-tools-extra/clangd/ClangdServer.cpp
+++ clang-tools-extra/clangd/ClangdServer.cpp
@@ -101,8 +101,7 @@
: nullptr),
GetClangTidyOptions(Opts.GetClangTidyOptions),
SuggestMissingIncludes(Opts.SuggestMissingIncludes),
- EnableHiddenFeatures(Opts.HiddenFeatures),
- TweakFilter(Opts.TweakFilter),
+ EnableHiddenFeatures(Opts.HiddenFeatures), TweakFilter(Opts.TweakFilter),
WorkspaceRoot(Opts.WorkspaceRoot),
// Pass a callback into `WorkScheduler` to extract symbols from a newly
// parsed file and rebuild the file index synchronously each time an AST
@@ -527,6 +526,12 @@
WorkScheduler.runWithAST("Type Hierarchy", File, Bind(Action, std::move(CB)));
}
+void ClangdServer::resolveTypeHierarchy(
+ TypeHierarchyItem Item, int Resolve, TypeHierarchyDirection Direction,
+ Callback<llvm::Optional<TypeHierarchyItem>> CB) {
+ CB(clangd::resolveTypeHierarchy(std::move(Item), Resolve, Direction, Index));
+}
+
void ClangdServer::onFileEvent(const DidChangeWatchedFilesParams &Params) {
// FIXME: Do nothing for now. This will be used for indexing and potentially
// invalidating other caches.
Index: clang-tools-extra/clangd/ClangdLSPServer.h
===================================================================
--- clang-tools-extra/clangd/ClangdLSPServer.h
+++ clang-tools-extra/clangd/ClangdLSPServer.h
@@ -100,6 +100,8 @@
Callback<llvm::Optional<Hover>>);
void onTypeHierarchy(const TypeHierarchyParams &,
Callback<llvm::Optional<TypeHierarchyItem>>);
+ void onResolveTypeHierarchy(const ResolveTypeHierarchyItemParams &,
+ Callback<llvm::Optional<TypeHierarchyItem>>);
void onChangeConfiguration(const DidChangeConfigurationParams &);
void onSymbolInfo(const TextDocumentPositionParams &,
Callback<std::vector<SymbolDetails>>);
Index: clang-tools-extra/clangd/ClangdLSPServer.cpp
===================================================================
--- clang-tools-extra/clangd/ClangdLSPServer.cpp
+++ clang-tools-extra/clangd/ClangdLSPServer.cpp
@@ -924,6 +924,13 @@
Params.resolve, Params.direction, std::move(Reply));
}
+void ClangdLSPServer::onResolveTypeHierarchy(
+ const ResolveTypeHierarchyItemParams &Params,
+ Callback<Optional<TypeHierarchyItem>> Reply) {
+ Server->resolveTypeHierarchy(Params.item, Params.resolve, Params.direction,
+ std::move(Reply));
+}
+
void ClangdLSPServer::applyConfiguration(
const ConfigurationSettings &Settings) {
// Per-file update to the compilation database.
@@ -1019,6 +1026,7 @@
MsgHandler->bind("workspace/didChangeConfiguration", &ClangdLSPServer::onChangeConfiguration);
MsgHandler->bind("textDocument/symbolInfo", &ClangdLSPServer::onSymbolInfo);
MsgHandler->bind("textDocument/typeHierarchy", &ClangdLSPServer::onTypeHierarchy);
+ MsgHandler->bind("typeHierarchy/resolve", &ClangdLSPServer::onResolveTypeHierarchy);
// clang-format on
}
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