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