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// Copyright 2016 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.
#ifndef V8_INSPECTOR_WASM_TRANSLATION_H_
#define V8_INSPECTOR_WASM_TRANSLATION_H_
#include <unordered_map>
#include "include/v8.h"
#include "src/base/macros.h"
#include "src/debug/debug-interface.h"
#include "src/inspector/string-16.h"
namespace v8_inspector {
// Forward declarations.
class V8DebuggerAgentImpl;
class WasmTranslation {
public:
explicit WasmTranslation(v8::Isolate* isolate);
~WasmTranslation();
// Make a wasm script known to the translation. This will trigger a number of
// didParseScript calls to the given debugger agent.
// Only locations referencing a registered script will be translated by the
// Translate functions below.
void AddScript(v8::Local<v8::debug::WasmScript> script,
V8DebuggerAgentImpl* agent);
// Clear all registered scripts.
void Clear();
// Clear all registered scripts for context group.
void Clear(v8::Isolate* isolate, const std::vector<int>& contextIdsToClear);
// Translate a location as generated by V8 to a location that should be sent
// over protocol.
// Does nothing for locations referencing a script which was not registered
// before via AddScript.
// Line and column are 0-based.
// Returns true if the location was translated, false otherwise.
bool TranslateWasmScriptLocationToProtocolLocation(String16* script_id,
int* line_number,
int* column_number);
// Translate back from protocol locations (potentially referencing artificial
// scripts for individual wasm functions) to locations that make sense to V8.
// Does nothing if the location was not generated by the translate method
// above.
// Returns true if the location was translated, false otherwise.
bool TranslateProtocolLocationToWasmScriptLocation(String16* script_id,
int* line_number,
int* column_number);
const String16& GetSource(const String16& script_id, int func_index);
int GetStartLine(const String16& script_id, int func_index) { return 0; }
int GetStartColumn(const String16& script_id, int func_index) { return 0; }
int GetEndLine(const String16& script_id, int func_index);
int GetEndColumn(const String16& script_id, int func_index);
String16 GetHash(const String16& script_id, int func_index);
private:
class TranslatorImpl;
friend class TranslatorImpl;
void AddFakeScript(const String16& scriptId, TranslatorImpl* translator);
v8::Isolate* isolate_;
std::unordered_map<int, std::unique_ptr<TranslatorImpl>> wasm_translators_;
std::unordered_map<String16, TranslatorImpl*> fake_scripts_;
DISALLOW_COPY_AND_ASSIGN(WasmTranslation);
};
} // namespace v8_inspector
#endif // V8_INSPECTOR_WASM_TRANSLATION_H_