Req, [&](const Symbol &S) { Hover.Documentation = S.Documentation; });
}
+// Populates Type, ReturnType, and Parameters for function-like decls.
+static void fillFunctionTypeAndParams(HoverInfo &HI, const Decl *D,
+ const FunctionDecl *FD,
+ const PrintingPolicy &Policy) {
+ HI.Parameters.emplace();
+ for (const ParmVarDecl *PVD : FD->parameters()) {
+ HI.Parameters->emplace_back();
+ auto &P = HI.Parameters->back();
+ if (!PVD->getType().isNull()) {
+ P.Type.emplace();
+ llvm::raw_string_ostream OS(*P.Type);
+ PVD->getType().print(OS, Policy);
+ } else {
+ std::string Param;
+ llvm::raw_string_ostream OS(Param);
+ PVD->dump(OS);
+ OS.flush();
+ elog("Got param with null type: {0}", Param);
+ }
+ if (!PVD->getName().empty())
+ P.Name = PVD->getNameAsString();
+ if (PVD->hasDefaultArg()) {
+ P.Default.emplace();
+ llvm::raw_string_ostream Out(*P.Default);
+ PVD->getDefaultArg()->printPretty(Out, nullptr, Policy);
+ }
+ }
+
+ if (const auto* CCD = llvm::dyn_cast<CXXConstructorDecl>(FD)) {
+ // Constructor's "return type" is the class type.
+ HI.ReturnType = declaredType(CCD->getParent()).getAsString(Policy);
+ // Don't provide any type for the constructor itself.
+ } else if (const auto* CDD = llvm::dyn_cast<CXXDestructorDecl>(FD)){
+ HI.ReturnType = "void";
+ } else {
+ HI.ReturnType = FD->getReturnType().getAsString(Policy);
+
+ QualType FunctionType = FD->getType();
+ if (const VarDecl *VD = llvm::dyn_cast<VarDecl>(D)) // Lambdas
+ FunctionType = VD->getType().getDesugaredType(D->getASTContext());
+ HI.Type = FunctionType.getAsString(Policy);
+ }
+ // FIXME: handle variadics.
+}
+
/// Generate a \p Hover object given the declaration \p D.
static HoverInfo getHoverContents(const Decl *D, const SymbolIndex *Index) {
HoverInfo HI;
// Fill in types and params.
if (const FunctionDecl *FD = getUnderlyingFunction(D)) {
- HI.ReturnType.emplace();
- {
- llvm::raw_string_ostream OS(*HI.ReturnType);
- FD->getReturnType().print(OS, Policy);
- }
-
- HI.Parameters.emplace();
- for (const ParmVarDecl *PVD : FD->parameters()) {
- HI.Parameters->emplace_back();
- auto &P = HI.Parameters->back();
- if (!PVD->getType().isNull()) {
- P.Type.emplace();
- llvm::raw_string_ostream OS(*P.Type);
- PVD->getType().print(OS, Policy);
- } else {
- std::string Param;
- llvm::raw_string_ostream OS(Param);
- PVD->dump(OS);
- OS.flush();
- elog("Got param with null type: {0}", Param);
- }
- if (!PVD->getName().empty())
- P.Name = PVD->getNameAsString();
- if (PVD->hasDefaultArg()) {
- P.Default.emplace();
- llvm::raw_string_ostream Out(*P.Default);
- PVD->getDefaultArg()->printPretty(Out, nullptr, Policy);
- }
- }
-
- HI.Type.emplace();
- llvm::raw_string_ostream TypeOS(*HI.Type);
- // Lambdas
- if (const VarDecl *VD = llvm::dyn_cast<VarDecl>(D))
- VD->getType().getDesugaredType(D->getASTContext()).print(TypeOS, Policy);
- // Functions
- else
- FD->getType().print(TypeOS, Policy);
- // FIXME: handle variadics.
+ fillFunctionTypeAndParams(HI, D, FD, Policy);
} else if (const auto *VD = dyn_cast<ValueDecl>(D)) {
HI.Type.emplace();
llvm::raw_string_ostream OS(*HI.Type);