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- /*
- * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #pragma once
- #include <AK/HashMap.h>
- #include <AK/RefCounted.h>
- #include <LibJS/Heap/Heap.h>
- namespace JS {
- class VM : public RefCounted<VM> {
- public:
- static NonnullRefPtr<VM> create();
- ~VM();
- Heap& heap() { return m_heap; }
- const Heap& heap() const { return m_heap; }
- Interpreter& interpreter();
- Interpreter* interpreter_if_exists();
- void push_interpreter(Interpreter&);
- void pop_interpreter(Interpreter&);
- Exception* exception()
- {
- return m_exception;
- }
- void set_exception(Badge<Interpreter>, Exception* exception) { m_exception = exception; }
- void clear_exception() { m_exception = nullptr; }
- class InterpreterExecutionScope {
- public:
- InterpreterExecutionScope(Interpreter&);
- ~InterpreterExecutionScope();
- private:
- Interpreter& m_interpreter;
- };
- void gather_roots(HashTable<Cell*>&);
- #define __JS_ENUMERATE(SymbolName, snake_name) \
- Symbol* well_known_symbol_##snake_name() const { return m_well_known_symbol_##snake_name; }
- JS_ENUMERATE_WELL_KNOWN_SYMBOLS
- #undef __JS_ENUMERATE
- Symbol* get_global_symbol(const String& description);
- private:
- VM();
- Exception* m_exception { nullptr };
- Heap m_heap;
- Vector<Interpreter*> m_interpreters;
- HashMap<String, Symbol*> m_global_symbol_map;
- #define __JS_ENUMERATE(SymbolName, snake_name) \
- Symbol* m_well_known_symbol_##snake_name { nullptr };
- JS_ENUMERATE_WELL_KNOWN_SYMBOLS
- #undef __JS_ENUMERATE
- };
- }
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