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//===-- TestIndex.cpp -------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "TestIndex.h"
#include "clang/Index/IndexSymbol.h"
#include "llvm/Support/Regex.h"
namespace clang {
namespace clangd {
Symbol symbol(llvm::StringRef QName) {
Symbol Sym;
Sym.ID = SymbolID(QName.str());
size_t Pos = QName.rfind("::");
if (Pos == llvm::StringRef::npos) {
Sym.Name = QName;
Sym.Scope = "";
} else {
Sym.Name = QName.substr(Pos + 2);
Sym.Scope = QName.substr(0, Pos + 2);
}
return Sym;
}
static std::string replace(llvm::StringRef Haystack, llvm::StringRef Needle,
llvm::StringRef Repl) {
llvm::SmallVector<llvm::StringRef, 8> Parts;
Haystack.split(Parts, Needle);
return llvm::join(Parts, Repl);
}
// Helpers to produce fake index symbols for memIndex() or completions().
// USRFormat is a regex replacement string for the unqualified part of the USR.
Symbol sym(llvm::StringRef QName, index::SymbolKind Kind,
llvm::StringRef USRFormat) {
Symbol Sym;
std::string USR = "c:"; // We synthesize a few simple cases of USRs by hand!
size_t Pos = QName.rfind("::");
if (Pos == llvm::StringRef::npos) {
Sym.Name = QName;
Sym.Scope = "";
} else {
Sym.Name = QName.substr(Pos + 2);
Sym.Scope = QName.substr(0, Pos + 2);
USR += "@N@" + replace(QName.substr(0, Pos), "::", "@N@"); // ns:: -> @N@ns
}
USR += llvm::Regex("^.*$").sub(USRFormat, Sym.Name); // e.g. func -> @F@func#
Sym.ID = SymbolID(USR);
Sym.SymInfo.Kind = Kind;
Sym.Flags |= Symbol::IndexedForCodeCompletion;
Sym.Origin = SymbolOrigin::Static;
return Sym;
}
Symbol func(llvm::StringRef Name) { // Assumes the function has no args.
return sym(Name, index::SymbolKind::Function, "@F@\\0#"); // no args
}
Symbol cls(llvm::StringRef Name) {
return sym(Name, index::SymbolKind::Class, "@S@\\0");
}
Symbol var(llvm::StringRef Name) {
return sym(Name, index::SymbolKind::Variable, "@\\0");
}
Symbol ns(llvm::StringRef Name) {
return sym(Name, index::SymbolKind::Namespace, "@N@\\0");
}
SymbolSlab generateSymbols(std::vector<std::string> QualifiedNames) {
SymbolSlab::Builder Slab;
for (llvm::StringRef QName : QualifiedNames)
Slab.insert(symbol(QName));
return std::move(Slab).build();
}
SymbolSlab generateNumSymbols(int Begin, int End) {
std::vector<std::string> Names;
for (int i = Begin; i <= End; i++)
Names.push_back(std::to_string(i));
return generateSymbols(Names);
}
std::string getQualifiedName(const Symbol &Sym) {
return (Sym.Scope + Sym.Name + Sym.TemplateSpecializationArgs).str();
}
std::vector<std::string> match(const SymbolIndex &I,
const FuzzyFindRequest &Req, bool *Incomplete) {
std::vector<std::string> Matches;
bool IsIncomplete = I.fuzzyFind(Req, [&](const Symbol &Sym) {
Matches.push_back(clang::clangd::getQualifiedName(Sym));
});
if (Incomplete)
*Incomplete = IsIncomplete;
return Matches;
}
// Returns qualified names of symbols with any of IDs in the index.
std::vector<std::string> lookup(const SymbolIndex &I,
llvm::ArrayRef<SymbolID> IDs) {
LookupRequest Req;
Req.IDs.insert(IDs.begin(), IDs.end());
std::vector<std::string> Results;
I.lookup(Req, [&](const Symbol &Sym) {
Results.push_back(getQualifiedName(Sym));
});
return Results;
}
} // namespace clangd
} // namespace clang
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