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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <map>
#include <vector>
#include "src/base/macros.h"
#include "src/base/optional.h"
#include "src/torque/declarable.h"
#include "src/torque/global-context.h"
#include "src/torque/source-positions.h"
#include "src/torque/type-oracle.h"
namespace v8 {
namespace internal {
namespace torque {
// The definition of the token in the first element, can be found at the second.
using DefinitionMapping = std::pair<SourcePosition, SourcePosition>;
// TODO(szuend): Support overlapping source positions when we start adding them.
using Definitions = std::vector<DefinitionMapping>;
using DefinitionsMap = std::map<SourceId, Definitions>;
// Symbols are used to answer search queries (either workspace or document
// scope). For now, declarables are stored directly without converting them
// into a custom format. Symbols are grouped by sourceId to implement document
// scoped searches.
using Symbols = std::vector<Declarable*>;
using SymbolsMap = std::map<SourceId, Symbols>;
// This contextual class holds all the necessary data to answer incoming
// LSP requests. It is reset for each compilation step and all information
// is calculated eagerly during compilation.
class LanguageServerData : public ContextualClass<LanguageServerData> {
LanguageServerData() = default;
V8_EXPORT_PRIVATE static void AddDefinition(SourcePosition token,
SourcePosition definition);
V8_EXPORT_PRIVATE static base::Optional<SourcePosition> FindDefinition(
SourceId source, LineAndColumn pos);
static void SetGlobalContext(GlobalContext global_context) {
Get().global_context_ =
static void SetTypeOracle(TypeOracle type_oracle) {
Get().type_oracle_ = base::make_unique<TypeOracle>(std::move(type_oracle));
static const Symbols& SymbolsForSourceId(SourceId id) {
return Get().symbols_map_[id];
// Splits all declarables up by SourceId and filters out auto-generated ones.
void PrepareAllDeclarableSymbols();
DefinitionsMap definitions_map_;
SymbolsMap symbols_map_;
std::unique_ptr<GlobalContext> global_context_;
std::unique_ptr<TypeOracle> type_oracle_;
} // namespace torque
} // namespace internal
} // namespace v8