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[SourceKit][SymbolGraph] Add a 'ParentContexts' field the CursorInfo response

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When the SymbolGraph json is requested via (key.retrieve_symbol_graph: 1) this adds
a new field in the response that lists all the parent contexts of the symbol under
the cursor with their symbol graph kind and name, and their USR:

key.parent_contexts: [
    {
      key.kind: "swift.struct",
      key.name: "Parent",
      key.usr: "s:27cursor_symbol_graph_parents6ParentV"
    },
    ...
  ]
}

Resolves rdar://problem/73904365
This commit is contained in:
Nathan Hawes
2021-02-10 14:36:30 +10:00
parent e2bac38348
commit 6d940951ca
11 changed files with 356 additions and 71 deletions
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21
tools/SourceKit/lib/SwiftLang/SwiftSourceDocInfo.cpp
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@@ -485,7 +485,7 @@ void SwiftLangSupport::printFullyAnnotatedSynthesizedDeclaration(
}
template <typename FnTy>
void walkRelatedDecls(const ValueDecl *VD, const FnTy &Fn) {
static void walkRelatedDecls(const ValueDecl *VD, const FnTy &Fn) {
if (isa<ParamDecl>(VD))
return; // Parameters don't have interesting related declarations.
@@ -834,7 +834,11 @@ static bool passCursorInfoForDecl(SourceFile* SF,
}
unsigned DeclEnd = SS.size();
SmallVector<symbolgraphgen::PathComponent, 4> PathComponents;
SmallVector<ParentInfo, 4> Parents;
unsigned SymbolGraphBegin = SS.size();
unsigned SymbolGraphEnd = SymbolGraphBegin;
if (SymbolGraph) {
symbolgraphgen::SymbolGraphOptions Options {
"",
@@ -845,10 +849,18 @@ static bool passCursorInfoForDecl(SourceFile* SF,
};
llvm::raw_svector_ostream OS(SS);
symbolgraphgen::printSymbolGraphForDecl(VD, BaseType,
InSynthesizedExtension,
Options, OS);
InSynthesizedExtension, Options, OS,
PathComponents);
SymbolGraphEnd = SS.size();
for (auto &Component: PathComponents) {
unsigned USRStart = SS.size();
if (SwiftLangSupport::printUSR(Component.VD, OS))
continue;
StringRef USR{SS.begin()+USRStart, SS.size() - USRStart};
Parents.push_back({Component.Title, Component.Kind, USR});
}
}
unsigned SymbolGraphEnd = SS.size();
unsigned FullDeclBegin = SS.size();
{
@@ -1043,6 +1055,7 @@ static bool passCursorInfoForDecl(SourceFile* SF,
Info.AvailableActions = llvm::makeArrayRef(RefactoringInfoBuffer);
Info.ParentNameOffset = getParamParentNameOffset(VD, CursorLoc);
Info.SymbolGraph = SymbolGraphJSON;
Info.ParentContexts = llvm::makeArrayRef(Parents);
Receiver(RequestResult<CursorInfoData>::fromResult(Info));
return true;
}