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			1738 lines
		
	
	
	
		
			70 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			1738 lines
		
	
	
	
		
			70 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
 | |
|  * Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
 | |
| 
 | |
| #include <AK/Debug.h>
 | |
| #include <AK/HashTable.h>
 | |
| #include <AK/TemporaryChange.h>
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| #include <LibJS/AST.h>
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| #include <LibJS/Bytecode/BasicBlock.h>
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| #include <LibJS/Bytecode/CommonImplementations.h>
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| #include <LibJS/Bytecode/Generator.h>
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| #include <LibJS/Bytecode/Instruction.h>
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| #include <LibJS/Bytecode/Interpreter.h>
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| #include <LibJS/Bytecode/Label.h>
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| #include <LibJS/Bytecode/Op.h>
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| #include <LibJS/JIT/Compiler.h>
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| #include <LibJS/JIT/NativeExecutable.h>
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| #include <LibJS/Runtime/AbstractOperations.h>
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| #include <LibJS/Runtime/Array.h>
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| #include <LibJS/Runtime/BigInt.h>
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| #include <LibJS/Runtime/DeclarativeEnvironment.h>
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| #include <LibJS/Runtime/ECMAScriptFunctionObject.h>
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| #include <LibJS/Runtime/Environment.h>
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| #include <LibJS/Runtime/FunctionEnvironment.h>
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| #include <LibJS/Runtime/GlobalEnvironment.h>
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| #include <LibJS/Runtime/GlobalObject.h>
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| #include <LibJS/Runtime/Iterator.h>
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| #include <LibJS/Runtime/NativeFunction.h>
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| #include <LibJS/Runtime/ObjectEnvironment.h>
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| #include <LibJS/Runtime/Realm.h>
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| #include <LibJS/Runtime/Reference.h>
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| #include <LibJS/Runtime/RegExpObject.h>
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| #include <LibJS/Runtime/Value.h>
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| #include <LibJS/Runtime/ValueInlines.h>
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| #include <LibJS/SourceTextModule.h>
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| 
 | |
| namespace JS::Bytecode {
 | |
| 
 | |
| bool g_dump_bytecode = false;
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| 
 | |
| Interpreter::Interpreter(VM& vm)
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|     : m_vm(vm)
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| {
 | |
| }
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| 
 | |
| Interpreter::~Interpreter()
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| {
 | |
| }
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| 
 | |
| void Interpreter::visit_edges(Cell::Visitor& visitor)
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| {
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|     for (auto& frame : m_call_frames) {
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|         frame.visit([&](auto& value) { value->visit_edges(visitor); });
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|     }
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| }
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| 
 | |
| // 16.1.6 ScriptEvaluation ( scriptRecord ), https://tc39.es/ecma262/#sec-runtime-semantics-scriptevaluation
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| ThrowCompletionOr<Value> Interpreter::run(Script& script_record, JS::GCPtr<Environment> lexical_environment_override)
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| {
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|     auto& vm = this->vm();
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| 
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|     // 1. Let globalEnv be scriptRecord.[[Realm]].[[GlobalEnv]].
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|     auto& global_environment = script_record.realm().global_environment();
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| 
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|     // 2. Let scriptContext be a new ECMAScript code execution context.
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|     ExecutionContext script_context(vm.heap());
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| 
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|     // 3. Set the Function of scriptContext to null.
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|     // NOTE: This was done during execution context construction.
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| 
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|     // 4. Set the Realm of scriptContext to scriptRecord.[[Realm]].
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|     script_context.realm = &script_record.realm();
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| 
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|     // 5. Set the ScriptOrModule of scriptContext to scriptRecord.
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|     script_context.script_or_module = NonnullGCPtr<Script>(script_record);
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| 
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|     // 6. Set the VariableEnvironment of scriptContext to globalEnv.
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|     script_context.variable_environment = &global_environment;
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| 
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|     // 7. Set the LexicalEnvironment of scriptContext to globalEnv.
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|     script_context.lexical_environment = &global_environment;
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| 
 | |
|     // Non-standard: Override the lexical environment if requested.
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|     if (lexical_environment_override)
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|         script_context.lexical_environment = lexical_environment_override;
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| 
 | |
|     // 8. Set the PrivateEnvironment of scriptContext to null.
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| 
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|     // NOTE: This isn't in the spec, but we require it.
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|     script_context.is_strict_mode = script_record.parse_node().is_strict_mode();
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| 
 | |
|     // FIXME: 9. Suspend the currently running execution context.
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| 
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|     // 10. Push scriptContext onto the execution context stack; scriptContext is now the running execution context.
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|     TRY(vm.push_execution_context(script_context, {}));
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| 
 | |
|     // 11. Let script be scriptRecord.[[ECMAScriptCode]].
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|     auto& script = script_record.parse_node();
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| 
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|     // 12. Let result be Completion(GlobalDeclarationInstantiation(script, globalEnv)).
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|     auto instantiation_result = script.global_declaration_instantiation(vm, global_environment);
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|     Completion result = instantiation_result.is_throw_completion() ? instantiation_result.throw_completion() : normal_completion({});
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| 
 | |
|     // 13. If result.[[Type]] is normal, then
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|     if (result.type() == Completion::Type::Normal) {
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|         auto executable_result = JS::Bytecode::Generator::generate(script);
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| 
 | |
|         if (executable_result.is_error()) {
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|             if (auto error_string = executable_result.error().to_string(); error_string.is_error())
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|                 result = vm.template throw_completion<JS::InternalError>(vm.error_message(JS::VM::ErrorMessage::OutOfMemory));
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|             else if (error_string = String::formatted("TODO({})", error_string.value()); error_string.is_error())
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|                 result = vm.template throw_completion<JS::InternalError>(vm.error_message(JS::VM::ErrorMessage::OutOfMemory));
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|             else
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|                 result = JS::throw_completion(JS::InternalError::create(realm(), error_string.release_value()));
 | |
|         } else {
 | |
|             auto executable = executable_result.release_value();
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| 
 | |
|             if (g_dump_bytecode)
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|                 executable->dump();
 | |
| 
 | |
|             // a. Set result to the result of evaluating script.
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|             auto result_or_error = run_and_return_frame(*executable, nullptr);
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|             if (result_or_error.value.is_error())
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|                 result = result_or_error.value.release_error();
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|             else
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|                 result = result_or_error.frame->registers[0];
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|         }
 | |
|     }
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| 
 | |
|     // 14. If result.[[Type]] is normal and result.[[Value]] is empty, then
 | |
|     if (result.type() == Completion::Type::Normal && !result.value().has_value()) {
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|         // a. Set result to NormalCompletion(undefined).
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|         result = normal_completion(js_undefined());
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|     }
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| 
 | |
|     // FIXME: 15. Suspend scriptContext and remove it from the execution context stack.
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|     vm.pop_execution_context();
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| 
 | |
|     // 16. Assert: The execution context stack is not empty.
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|     VERIFY(!vm.execution_context_stack().is_empty());
 | |
| 
 | |
|     // FIXME: 17. Resume the context that is now on the top of the execution context stack as the running execution context.
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| 
 | |
|     // At this point we may have already run any queued promise jobs via on_call_stack_emptied,
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|     // in which case this is a no-op.
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|     // FIXME: These three should be moved out of Interpreter::run and give the host an option to run these, as it's up to the host when these get run.
 | |
|     //        https://tc39.es/ecma262/#sec-jobs for jobs and https://tc39.es/ecma262/#_ref_3508 for ClearKeptObjects
 | |
|     //        finish_execution_generation is particularly an issue for LibWeb, as the HTML spec wants to run it specifically after performing a microtask checkpoint.
 | |
|     //        The promise and registry cleanup queues don't cause LibWeb an issue, as LibWeb overrides the hooks that push onto these queues.
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|     vm.run_queued_promise_jobs();
 | |
| 
 | |
|     vm.run_queued_finalization_registry_cleanup_jobs();
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| 
 | |
|     vm.finish_execution_generation();
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| 
 | |
|     // 18. Return ? result.
 | |
|     if (result.is_abrupt()) {
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|         VERIFY(result.type() == Completion::Type::Throw);
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|         return result.release_error();
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|     }
 | |
| 
 | |
|     VERIFY(result.value().has_value());
 | |
|     return *result.value();
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| }
 | |
| 
 | |
| ThrowCompletionOr<Value> Interpreter::run(SourceTextModule& module)
 | |
| {
 | |
|     // FIXME: This is not a entry point as defined in the spec, but is convenient.
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|     //        To avoid work we use link_and_eval_module however that can already be
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|     //        dangerous if the vm loaded other modules.
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|     auto& vm = this->vm();
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| 
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|     TRY(vm.link_and_eval_module(Badge<Bytecode::Interpreter> {}, module));
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| 
 | |
|     vm.run_queued_promise_jobs();
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| 
 | |
|     vm.run_queued_finalization_registry_cleanup_jobs();
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| 
 | |
|     return js_undefined();
 | |
| }
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| 
 | |
| void Interpreter::run_bytecode()
 | |
| {
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|     auto* locals = vm().running_execution_context().local_variables.data();
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|     auto* registers = this->registers().data();
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|     auto& accumulator = this->accumulator();
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|     for (;;) {
 | |
|     start:
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|         auto pc = InstructionStreamIterator { m_current_block->instruction_stream(), m_current_executable };
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|         TemporaryChange temp_change { m_pc, Optional<InstructionStreamIterator&>(pc) };
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| 
 | |
|         bool will_return = false;
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|         bool will_yield = false;
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| 
 | |
|         ThrowCompletionOr<void> result;
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| 
 | |
|         while (!pc.at_end()) {
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|             auto& instruction = *pc;
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| 
 | |
|             switch (instruction.type()) {
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|             case Instruction::Type::GetLocal: {
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|                 auto& local = locals[static_cast<Op::GetLocal const&>(instruction).index()];
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|                 if (local.is_empty()) {
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|                     auto const& variable_name = vm().running_execution_context().function->local_variables_names()[static_cast<Op::GetLocal const&>(instruction).index()];
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|                     result = vm().throw_completion<ReferenceError>(ErrorType::BindingNotInitialized, variable_name);
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|                     break;
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|                 }
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|                 accumulator = local;
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|                 break;
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|             }
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|             case Instruction::Type::SetLocal:
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|                 locals[static_cast<Op::SetLocal const&>(instruction).index()] = accumulator;
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|                 break;
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|             case Instruction::Type::Load:
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|                 accumulator = registers[static_cast<Op::Load const&>(instruction).src().index()];
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|                 break;
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|             case Instruction::Type::Store:
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|                 registers[static_cast<Op::Store const&>(instruction).dst().index()] = accumulator;
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|                 break;
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|             case Instruction::Type::LoadImmediate:
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|                 accumulator = static_cast<Op::LoadImmediate const&>(instruction).value();
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|                 break;
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|             case Instruction::Type::Jump:
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|                 m_current_block = &static_cast<Op::Jump const&>(instruction).true_target()->block();
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|                 goto start;
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|             case Instruction::Type::JumpConditional:
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|                 if (accumulator.to_boolean())
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|                     m_current_block = &static_cast<Op::Jump const&>(instruction).true_target()->block();
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|                 else
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|                     m_current_block = &static_cast<Op::Jump const&>(instruction).false_target()->block();
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|                 goto start;
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|             case Instruction::Type::JumpNullish:
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|                 if (accumulator.is_nullish())
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|                     m_current_block = &static_cast<Op::Jump const&>(instruction).true_target()->block();
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|                 else
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|                     m_current_block = &static_cast<Op::Jump const&>(instruction).false_target()->block();
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|                 goto start;
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|             case Instruction::Type::JumpUndefined:
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|                 if (accumulator.is_undefined())
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|                     m_current_block = &static_cast<Op::Jump const&>(instruction).true_target()->block();
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|                 else
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|                     m_current_block = &static_cast<Op::Jump const&>(instruction).false_target()->block();
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|                 goto start;
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|             case Instruction::Type::EnterUnwindContext:
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|                 enter_unwind_context();
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|                 m_current_block = &static_cast<Op::EnterUnwindContext const&>(instruction).entry_point().block();
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|                 goto start;
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|             case Instruction::Type::ContinuePendingUnwind: {
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|                 if (auto exception = reg(Register::exception()); !exception.is_empty()) {
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|                     result = throw_completion(exception);
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|                     break;
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|                 }
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|                 if (!saved_return_value().is_empty()) {
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|                     do_return(saved_return_value());
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|                     break;
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|                 }
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|                 auto const* old_scheduled_jump = call_frame().previously_scheduled_jumps.take_last();
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|                 if (m_scheduled_jump) {
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|                     // FIXME: If we `break` or `continue` in the finally, we need to clear
 | |
|                     //        this field
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|                     //        Same goes for popping an old_scheduled_jump form the stack
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|                     m_current_block = exchange(m_scheduled_jump, nullptr);
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|                 } else {
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|                     m_current_block = &static_cast<Op::ContinuePendingUnwind const&>(instruction).resume_target().block();
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|                     // set the scheduled jump to the old value if we continue
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|                     // where we left it
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|                     m_scheduled_jump = old_scheduled_jump;
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|                 }
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|                 goto start;
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|             }
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|             case Instruction::Type::ScheduleJump: {
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|                 m_scheduled_jump = &static_cast<Op::ScheduleJump const&>(instruction).target().block();
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|                 auto const* finalizer = m_current_block->finalizer();
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|                 VERIFY(finalizer);
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|                 m_current_block = finalizer;
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|                 goto start;
 | |
|             }
 | |
|             default:
 | |
|                 result = instruction.execute(*this);
 | |
|                 break;
 | |
|             }
 | |
| 
 | |
|             if (result.is_error()) [[unlikely]] {
 | |
|                 reg(Register::exception()) = *result.throw_completion().value();
 | |
|                 m_scheduled_jump = {};
 | |
|                 auto const* handler = m_current_block->handler();
 | |
|                 auto const* finalizer = m_current_block->finalizer();
 | |
|                 if (!handler && !finalizer)
 | |
|                     return;
 | |
| 
 | |
|                 auto& unwind_context = unwind_contexts().last();
 | |
|                 VERIFY(unwind_context.executable == m_current_executable);
 | |
| 
 | |
|                 if (handler) {
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|                     VERIFY(!unwind_context.handler_called);
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|                     vm().running_execution_context().lexical_environment = unwind_context.lexical_environment;
 | |
|                     m_current_block = handler;
 | |
|                     unwind_context.handler_called = true;
 | |
| 
 | |
|                     accumulator = reg(Register::exception());
 | |
|                     reg(Register::exception()) = {};
 | |
|                     goto start;
 | |
|                 }
 | |
|                 if (finalizer) {
 | |
|                     m_current_block = finalizer;
 | |
|                     // If an exception was thrown inside the corresponding `catch` block, we need to rethrow it
 | |
|                     // from the `finally` block. But if the exception is from the `try` block, and has already been
 | |
|                     // handled by `catch`, we swallow it.
 | |
|                     if (!unwind_context.handler_called)
 | |
|                         reg(Register::exception()) = {};
 | |
|                     goto start;
 | |
|                 }
 | |
|                 // An unwind context with no handler or finalizer? We have nowhere to jump, and continuing on will make us crash on the next `Call` to a non-native function if there's an exception! So let's crash here instead.
 | |
|                 // If you run into this, you probably forgot to remove the current unwind_context somewhere.
 | |
|                 VERIFY_NOT_REACHED();
 | |
|             }
 | |
| 
 | |
|             if (!reg(Register::return_value()).is_empty()) {
 | |
|                 will_return = true;
 | |
|                 // Note: A `yield` statement will not go through a finally statement,
 | |
|                 //       hence we need to set a flag to not do so,
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|                 //       but we generate a Yield Operation in the case of returns in
 | |
|                 //       generators as well, so we need to check if it will actually
 | |
|                 //       continue or is a `return` in disguise
 | |
|                 will_yield = (instruction.type() == Instruction::Type::Yield && static_cast<Op::Yield const&>(instruction).continuation().has_value()) || instruction.type() == Instruction::Type::Await;
 | |
|                 break;
 | |
|             }
 | |
|             ++pc;
 | |
|         }
 | |
| 
 | |
|         if (auto const* finalizer = m_current_block->finalizer(); finalizer && !will_yield) {
 | |
|             auto& unwind_context = unwind_contexts().last();
 | |
|             VERIFY(unwind_context.executable == m_current_executable);
 | |
|             reg(Register::saved_return_value()) = reg(Register::return_value());
 | |
|             reg(Register::return_value()) = {};
 | |
|             m_current_block = finalizer;
 | |
|             // the unwind_context will be pop'ed when entering the finally block
 | |
|             continue;
 | |
|         }
 | |
| 
 | |
|         if (pc.at_end())
 | |
|             break;
 | |
| 
 | |
|         if (will_return)
 | |
|             break;
 | |
|     }
 | |
| }
 | |
| 
 | |
| Interpreter::ValueAndFrame Interpreter::run_and_return_frame(Executable& executable, BasicBlock const* entry_point, CallFrame* in_frame)
 | |
| {
 | |
|     dbgln_if(JS_BYTECODE_DEBUG, "Bytecode::Interpreter will run unit {:p}", &executable);
 | |
| 
 | |
|     TemporaryChange restore_executable { m_current_executable, &executable };
 | |
|     TemporaryChange restore_saved_jump { m_scheduled_jump, static_cast<BasicBlock const*>(nullptr) };
 | |
| 
 | |
|     VERIFY(!vm().execution_context_stack().is_empty());
 | |
| 
 | |
|     TemporaryChange restore_current_block { m_current_block, entry_point ?: executable.basic_blocks.first() };
 | |
| 
 | |
|     if (in_frame)
 | |
|         push_call_frame(in_frame, executable.number_of_registers);
 | |
|     else
 | |
|         push_call_frame(make<CallFrame>(), executable.number_of_registers);
 | |
| 
 | |
|     vm().execution_context_stack().last()->executable = &executable;
 | |
| 
 | |
|     if (auto native_executable = executable.get_or_create_native_executable()) {
 | |
|         auto block_index = 0;
 | |
|         if (entry_point)
 | |
|             block_index = executable.basic_blocks.find_first_index_if([&](auto const& block) { return block.ptr() == entry_point; }).value();
 | |
|         native_executable->run(vm(), block_index);
 | |
| 
 | |
| #if 0
 | |
|         for (size_t i = 0; i < vm().running_execution_context().local_variables.size(); ++i) {
 | |
|             dbgln("%{}: {}", i, vm().running_execution_context().local_variables[i]);
 | |
|         }
 | |
| #endif
 | |
| 
 | |
|     } else {
 | |
|         run_bytecode();
 | |
|     }
 | |
| 
 | |
|     dbgln_if(JS_BYTECODE_DEBUG, "Bytecode::Interpreter did run unit {:p}", &executable);
 | |
| 
 | |
|     if constexpr (JS_BYTECODE_DEBUG) {
 | |
|         for (size_t i = 0; i < registers().size(); ++i) {
 | |
|             String value_string;
 | |
|             if (registers()[i].is_empty())
 | |
|                 value_string = "(empty)"_string;
 | |
|             else
 | |
|                 value_string = registers()[i].to_string_without_side_effects();
 | |
|             dbgln("[{:3}] {}", i, value_string);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     auto return_value = js_undefined();
 | |
|     if (!reg(Register::return_value()).is_empty())
 | |
|         return_value = reg(Register::return_value());
 | |
|     else if (!reg(Register::saved_return_value()).is_empty())
 | |
|         return_value = reg(Register::saved_return_value());
 | |
|     auto exception = reg(Register::exception());
 | |
| 
 | |
|     auto frame = pop_call_frame();
 | |
| 
 | |
|     // NOTE: The return value from a called function is put into $0 in the caller context.
 | |
|     if (!m_call_frames.is_empty())
 | |
|         call_frame().registers[0] = return_value;
 | |
| 
 | |
|     // At this point we may have already run any queued promise jobs via on_call_stack_emptied,
 | |
|     // in which case this is a no-op.
 | |
|     vm().run_queued_promise_jobs();
 | |
| 
 | |
|     vm().finish_execution_generation();
 | |
| 
 | |
|     if (!exception.is_empty()) {
 | |
|         if (auto* call_frame = frame.get_pointer<NonnullOwnPtr<CallFrame>>())
 | |
|             return { throw_completion(exception), move(*call_frame) };
 | |
|         return { throw_completion(exception), nullptr };
 | |
|     }
 | |
| 
 | |
|     if (auto* call_frame = frame.get_pointer<NonnullOwnPtr<CallFrame>>())
 | |
|         return { return_value, move(*call_frame) };
 | |
|     return { return_value, nullptr };
 | |
| }
 | |
| 
 | |
| void Interpreter::enter_unwind_context()
 | |
| {
 | |
|     unwind_contexts().empend(
 | |
|         m_current_executable,
 | |
|         vm().running_execution_context().lexical_environment);
 | |
|     call_frame().previously_scheduled_jumps.append(m_scheduled_jump);
 | |
|     m_scheduled_jump = nullptr;
 | |
| }
 | |
| 
 | |
| void Interpreter::leave_unwind_context()
 | |
| {
 | |
|     unwind_contexts().take_last();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<NonnullRefPtr<Bytecode::Executable>> compile(VM& vm, ASTNode const& node, FunctionKind kind, DeprecatedFlyString const& name)
 | |
| {
 | |
|     auto executable_result = Bytecode::Generator::generate(node, kind);
 | |
|     if (executable_result.is_error())
 | |
|         return vm.throw_completion<InternalError>(ErrorType::NotImplemented, TRY_OR_THROW_OOM(vm, executable_result.error().to_string()));
 | |
| 
 | |
|     auto bytecode_executable = executable_result.release_value();
 | |
|     bytecode_executable->name = name;
 | |
| 
 | |
|     if (Bytecode::g_dump_bytecode)
 | |
|         bytecode_executable->dump();
 | |
| 
 | |
|     return bytecode_executable;
 | |
| }
 | |
| 
 | |
| Realm& Interpreter::realm()
 | |
| {
 | |
|     return *m_vm.current_realm();
 | |
| }
 | |
| 
 | |
| void Interpreter::push_call_frame(Variant<NonnullOwnPtr<CallFrame>, CallFrame*> frame, size_t register_count)
 | |
| {
 | |
|     m_call_frames.append(move(frame));
 | |
|     this->call_frame().registers.resize(register_count);
 | |
|     m_current_call_frame = this->call_frame().registers;
 | |
|     reg(Register::return_value()) = {};
 | |
| }
 | |
| 
 | |
| Variant<NonnullOwnPtr<CallFrame>, CallFrame*> Interpreter::pop_call_frame()
 | |
| {
 | |
|     auto frame = m_call_frames.take_last();
 | |
|     m_current_call_frame = m_call_frames.is_empty() ? Span<Value> {} : this->call_frame().registers;
 | |
|     return frame;
 | |
| }
 | |
| 
 | |
| }
 | |
| 
 | |
| namespace JS::Bytecode {
 | |
| 
 | |
| DeprecatedString Instruction::to_deprecated_string(Bytecode::Executable const& executable) const
 | |
| {
 | |
| #define __BYTECODE_OP(op)       \
 | |
|     case Instruction::Type::op: \
 | |
|         return static_cast<Bytecode::Op::op const&>(*this).to_deprecated_string_impl(executable);
 | |
| 
 | |
|     switch (type()) {
 | |
|         ENUMERATE_BYTECODE_OPS(__BYTECODE_OP)
 | |
|     default:
 | |
|         VERIFY_NOT_REACHED();
 | |
|     }
 | |
| 
 | |
| #undef __BYTECODE_OP
 | |
| }
 | |
| 
 | |
| }
 | |
| 
 | |
| namespace JS::Bytecode::Op {
 | |
| 
 | |
| ThrowCompletionOr<void> Load::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> LoadImmediate::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Store::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| static ThrowCompletionOr<Value> abstract_inequals(VM& vm, Value src1, Value src2)
 | |
| {
 | |
|     return Value(!TRY(is_loosely_equal(vm, src1, src2)));
 | |
| }
 | |
| 
 | |
| static ThrowCompletionOr<Value> abstract_equals(VM& vm, Value src1, Value src2)
 | |
| {
 | |
|     return Value(TRY(is_loosely_equal(vm, src1, src2)));
 | |
| }
 | |
| 
 | |
| static ThrowCompletionOr<Value> typed_inequals(VM&, Value src1, Value src2)
 | |
| {
 | |
|     return Value(!is_strictly_equal(src1, src2));
 | |
| }
 | |
| 
 | |
| static ThrowCompletionOr<Value> typed_equals(VM&, Value src1, Value src2)
 | |
| {
 | |
|     return Value(is_strictly_equal(src1, src2));
 | |
| }
 | |
| 
 | |
| #define JS_DEFINE_COMMON_BINARY_OP(OpTitleCase, op_snake_case)                                  \
 | |
|     ThrowCompletionOr<void> OpTitleCase::execute_impl(Bytecode::Interpreter& interpreter) const \
 | |
|     {                                                                                           \
 | |
|         auto& vm = interpreter.vm();                                                            \
 | |
|         auto lhs = interpreter.reg(m_lhs_reg);                                                  \
 | |
|         auto rhs = interpreter.accumulator();                                                   \
 | |
|         interpreter.accumulator() = TRY(op_snake_case(vm, lhs, rhs));                           \
 | |
|         return {};                                                                              \
 | |
|     }                                                                                           \
 | |
|     DeprecatedString OpTitleCase::to_deprecated_string_impl(Bytecode::Executable const&) const  \
 | |
|     {                                                                                           \
 | |
|         return DeprecatedString::formatted(#OpTitleCase " {}", m_lhs_reg);                      \
 | |
|     }
 | |
| 
 | |
| JS_ENUMERATE_COMMON_BINARY_OPS(JS_DEFINE_COMMON_BINARY_OP)
 | |
| 
 | |
| static ThrowCompletionOr<Value> not_(VM&, Value value)
 | |
| {
 | |
|     return Value(!value.to_boolean());
 | |
| }
 | |
| 
 | |
| static ThrowCompletionOr<Value> typeof_(VM& vm, Value value)
 | |
| {
 | |
|     return PrimitiveString::create(vm, value.typeof());
 | |
| }
 | |
| 
 | |
| #define JS_DEFINE_COMMON_UNARY_OP(OpTitleCase, op_snake_case)                                   \
 | |
|     ThrowCompletionOr<void> OpTitleCase::execute_impl(Bytecode::Interpreter& interpreter) const \
 | |
|     {                                                                                           \
 | |
|         auto& vm = interpreter.vm();                                                            \
 | |
|         interpreter.accumulator() = TRY(op_snake_case(vm, interpreter.accumulator()));          \
 | |
|         return {};                                                                              \
 | |
|     }                                                                                           \
 | |
|     DeprecatedString OpTitleCase::to_deprecated_string_impl(Bytecode::Executable const&) const  \
 | |
|     {                                                                                           \
 | |
|         return #OpTitleCase;                                                                    \
 | |
|     }
 | |
| 
 | |
| JS_ENUMERATE_COMMON_UNARY_OPS(JS_DEFINE_COMMON_UNARY_OP)
 | |
| 
 | |
| ThrowCompletionOr<void> NewBigInt::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     interpreter.accumulator() = BigInt::create(vm, m_bigint);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> NewArray::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto array = MUST(Array::create(interpreter.realm(), 0));
 | |
|     for (size_t i = 0; i < m_element_count; i++) {
 | |
|         auto& value = interpreter.reg(Register(m_elements[0].index() + i));
 | |
|         array->indexed_properties().put(i, value, default_attributes);
 | |
|     }
 | |
|     interpreter.accumulator() = array;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Append::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     return append(interpreter.vm(), interpreter.reg(m_lhs), interpreter.accumulator(), m_is_spread);
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ImportCall::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto specifier = interpreter.reg(m_specifier);
 | |
|     auto options_value = interpreter.reg(m_options);
 | |
|     interpreter.accumulator() = TRY(perform_import_call(vm, specifier, options_value));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> IteratorToArray::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(iterator_to_array(interpreter.vm(), interpreter.accumulator()));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> NewString::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = PrimitiveString::create(interpreter.vm(), interpreter.current_executable().get_string(m_string));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> NewObject::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto& realm = *vm.current_realm();
 | |
| 
 | |
|     interpreter.accumulator() = Object::create(realm, realm.intrinsics().object_prototype());
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> NewRegExp::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = new_regexp(
 | |
|         interpreter.vm(),
 | |
|         interpreter.current_executable().regex_table->get(m_regex_index),
 | |
|         interpreter.current_executable().get_string(m_source_index),
 | |
|         interpreter.current_executable().get_string(m_flags_index));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| #define JS_DEFINE_NEW_BUILTIN_ERROR_OP(ErrorName)                                                                                          \
 | |
|     ThrowCompletionOr<void> New##ErrorName::execute_impl(Bytecode::Interpreter& interpreter) const                                         \
 | |
|     {                                                                                                                                      \
 | |
|         auto& vm = interpreter.vm();                                                                                                       \
 | |
|         auto& realm = *vm.current_realm();                                                                                                 \
 | |
|         interpreter.accumulator() = ErrorName::create(realm, interpreter.current_executable().get_string(m_error_string));                 \
 | |
|         return {};                                                                                                                         \
 | |
|     }                                                                                                                                      \
 | |
|     DeprecatedString New##ErrorName::to_deprecated_string_impl(Bytecode::Executable const& executable) const                               \
 | |
|     {                                                                                                                                      \
 | |
|         return DeprecatedString::formatted("New" #ErrorName " {} (\"{}\")", m_error_string, executable.string_table->get(m_error_string)); \
 | |
|     }
 | |
| 
 | |
| JS_ENUMERATE_NEW_BUILTIN_ERROR_OPS(JS_DEFINE_NEW_BUILTIN_ERROR_OP)
 | |
| 
 | |
| ThrowCompletionOr<void> CopyObjectExcludingProperties::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto& realm = *vm.current_realm();
 | |
| 
 | |
|     auto from_object = interpreter.reg(m_from_object);
 | |
| 
 | |
|     auto to_object = Object::create(realm, realm.intrinsics().object_prototype());
 | |
| 
 | |
|     HashTable<PropertyKey> excluded_names;
 | |
|     for (size_t i = 0; i < m_excluded_names_count; ++i) {
 | |
|         excluded_names.set(TRY(interpreter.reg(m_excluded_names[i]).to_property_key(vm)));
 | |
|     }
 | |
| 
 | |
|     TRY(to_object->copy_data_properties(vm, from_object, excluded_names));
 | |
| 
 | |
|     interpreter.accumulator() = to_object;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ConcatString::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto string = TRY(interpreter.accumulator().to_primitive_string(vm));
 | |
|     interpreter.reg(m_lhs) = PrimitiveString::create(vm, interpreter.reg(m_lhs).as_string(), string);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetVariable::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(get_variable(
 | |
|         interpreter,
 | |
|         interpreter.current_executable().get_identifier(m_identifier),
 | |
|         interpreter.current_executable().environment_variable_caches[m_cache_index]));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetCalleeAndThisFromEnvironment::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto callee_and_this = TRY(get_callee_and_this_from_environment(
 | |
|         interpreter,
 | |
|         interpreter.current_executable().get_identifier(m_identifier),
 | |
|         interpreter.current_executable().environment_variable_caches[m_cache_index]));
 | |
|     interpreter.reg(m_callee_reg) = callee_and_this.callee;
 | |
|     interpreter.reg(m_this_reg) = callee_and_this.this_value;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetGlobal::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(get_global(
 | |
|         interpreter,
 | |
|         interpreter.current_executable().get_identifier(m_identifier),
 | |
|         interpreter.current_executable().global_variable_caches[m_cache_index]));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetLocal::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> DeleteVariable::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto const& string = interpreter.current_executable().get_identifier(m_identifier);
 | |
|     auto reference = TRY(vm.resolve_binding(string));
 | |
|     interpreter.accumulator() = Value(TRY(reference.delete_(vm)));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> CreateLexicalEnvironment::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto make_and_swap_envs = [&](auto& old_environment) {
 | |
|         GCPtr<Environment> environment = new_declarative_environment(*old_environment).ptr();
 | |
|         swap(old_environment, environment);
 | |
|         return environment;
 | |
|     };
 | |
|     interpreter.saved_lexical_environment_stack().append(make_and_swap_envs(interpreter.vm().running_execution_context().lexical_environment));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> EnterObjectEnvironment::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto& old_environment = vm.running_execution_context().lexical_environment;
 | |
|     interpreter.saved_lexical_environment_stack().append(old_environment);
 | |
|     auto object = TRY(interpreter.accumulator().to_object(vm));
 | |
|     vm.running_execution_context().lexical_environment = new_object_environment(object, true, old_environment);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> CreateVariable::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto const& name = interpreter.current_executable().get_identifier(m_identifier);
 | |
|     return create_variable(interpreter.vm(), name, m_mode, m_is_global, m_is_immutable, m_is_strict);
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> SetVariable::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto const& name = interpreter.current_executable().get_identifier(m_identifier);
 | |
|     TRY(set_variable(vm, name, interpreter.accumulator(), m_mode, m_initialization_mode));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> SetLocal::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetById::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto base_value = interpreter.accumulator();
 | |
|     auto& cache = interpreter.current_executable().property_lookup_caches[m_cache_index];
 | |
|     interpreter.accumulator() = TRY(get_by_id(interpreter.vm(), interpreter.current_executable().get_identifier(m_property), base_value, base_value, cache));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetByIdWithThis::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto base_value = interpreter.accumulator();
 | |
|     auto this_value = interpreter.reg(m_this_value);
 | |
|     auto& cache = interpreter.current_executable().property_lookup_caches[m_cache_index];
 | |
|     interpreter.accumulator() = TRY(get_by_id(interpreter.vm(), interpreter.current_executable().get_identifier(m_property), base_value, this_value, cache));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetPrivateById::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto const& name = interpreter.current_executable().get_identifier(m_property);
 | |
|     auto base_value = interpreter.accumulator();
 | |
|     auto private_reference = make_private_reference(vm, base_value, name);
 | |
|     interpreter.accumulator() = TRY(private_reference.get_value(vm));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> HasPrivateId::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
| 
 | |
|     if (!interpreter.accumulator().is_object())
 | |
|         return vm.throw_completion<TypeError>(ErrorType::InOperatorWithObject);
 | |
| 
 | |
|     auto private_environment = vm.running_execution_context().private_environment;
 | |
|     VERIFY(private_environment);
 | |
|     auto private_name = private_environment->resolve_private_identifier(interpreter.current_executable().get_identifier(m_property));
 | |
|     interpreter.accumulator() = Value(interpreter.accumulator().as_object().private_element_find(private_name) != nullptr);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> PutById::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     // NOTE: Get the value from the accumulator before side effects have a chance to overwrite it.
 | |
|     auto value = interpreter.accumulator();
 | |
|     auto base = interpreter.reg(m_base);
 | |
|     PropertyKey name = interpreter.current_executable().get_identifier(m_property);
 | |
|     auto& cache = interpreter.current_executable().property_lookup_caches[m_cache_index];
 | |
|     TRY(put_by_property_key(vm, base, base, value, name, m_kind, &cache));
 | |
|     interpreter.accumulator() = value;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> PutByIdWithThis::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     // NOTE: Get the value from the accumulator before side effects have a chance to overwrite it.
 | |
|     auto value = interpreter.accumulator();
 | |
|     auto base = interpreter.reg(m_base);
 | |
|     PropertyKey name = interpreter.current_executable().get_identifier(m_property);
 | |
|     auto& cache = interpreter.current_executable().property_lookup_caches[m_cache_index];
 | |
|     TRY(put_by_property_key(vm, base, interpreter.reg(m_this_value), value, name, m_kind, &cache));
 | |
|     interpreter.accumulator() = value;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> PutPrivateById::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     // NOTE: Get the value from the accumulator before side effects have a chance to overwrite it.
 | |
|     auto value = interpreter.accumulator();
 | |
|     auto object = TRY(interpreter.reg(m_base).to_object(vm));
 | |
|     auto name = interpreter.current_executable().get_identifier(m_property);
 | |
|     auto private_reference = make_private_reference(vm, object, name);
 | |
|     TRY(private_reference.put_value(vm, value));
 | |
|     interpreter.accumulator() = value;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> DeleteById::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto base_value = interpreter.accumulator();
 | |
|     interpreter.accumulator() = TRY(Bytecode::delete_by_id(interpreter, base_value, m_property));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> DeleteByIdWithThis::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto base_value = interpreter.accumulator();
 | |
|     auto const& identifier = interpreter.current_executable().get_identifier(m_property);
 | |
|     bool strict = vm.in_strict_mode();
 | |
|     auto reference = Reference { base_value, identifier, interpreter.reg(m_this_value), strict };
 | |
|     interpreter.accumulator() = Value(TRY(reference.delete_(vm)));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Jump::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ResolveThisBinding::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& cached_this_value = interpreter.reg(Register::this_value());
 | |
|     if (cached_this_value.is_empty()) {
 | |
|         // OPTIMIZATION: Because the value of 'this' cannot be reassigned during a function execution, it's
 | |
|         //               resolved once and then saved for subsequent use.
 | |
|         auto& vm = interpreter.vm();
 | |
|         cached_this_value = TRY(vm.resolve_this_binding());
 | |
|     }
 | |
|     interpreter.accumulator() = cached_this_value;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| // https://tc39.es/ecma262/#sec-makesuperpropertyreference
 | |
| ThrowCompletionOr<void> ResolveSuperBase::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
| 
 | |
|     // 1. Let env be GetThisEnvironment().
 | |
|     auto& env = verify_cast<FunctionEnvironment>(*get_this_environment(vm));
 | |
| 
 | |
|     // 2. Assert: env.HasSuperBinding() is true.
 | |
|     VERIFY(env.has_super_binding());
 | |
| 
 | |
|     // 3. Let baseValue be ? env.GetSuperBase().
 | |
|     interpreter.accumulator() = TRY(env.get_super_base());
 | |
| 
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetNewTarget::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = interpreter.vm().get_new_target();
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetImportMeta::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = interpreter.vm().get_import_meta();
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> JumpConditional::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> JumpNullish::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> JumpUndefined::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Call::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto callee = interpreter.reg(m_callee);
 | |
| 
 | |
|     TRY(throw_if_needed_for_call(interpreter, callee, call_type(), expression_string()));
 | |
| 
 | |
|     MarkedVector<Value> argument_values(vm.heap());
 | |
|     argument_values.ensure_capacity(m_argument_count);
 | |
|     for (u32 i = 0; i < m_argument_count; ++i) {
 | |
|         argument_values.unchecked_append(interpreter.reg(Register { m_first_argument.index() + i }));
 | |
|     }
 | |
|     interpreter.accumulator() = TRY(perform_call(interpreter, interpreter.reg(m_this_value), call_type(), callee, move(argument_values)));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> CallWithArgumentArray::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto callee = interpreter.reg(m_callee);
 | |
|     TRY(throw_if_needed_for_call(interpreter, callee, call_type(), expression_string()));
 | |
|     auto argument_values = argument_list_evaluation(interpreter.vm(), interpreter.accumulator());
 | |
|     interpreter.accumulator() = TRY(perform_call(interpreter, interpreter.reg(m_this_value), call_type(), callee, move(argument_values)));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| // 13.3.7.1 Runtime Semantics: Evaluation, https://tc39.es/ecma262/#sec-super-keyword-runtime-semantics-evaluation
 | |
| ThrowCompletionOr<void> SuperCallWithArgumentArray::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(super_call_with_argument_array(interpreter.vm(), interpreter.accumulator(), m_is_synthetic));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> NewFunction::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     interpreter.accumulator() = new_function(vm, m_function_node, m_lhs_name, m_home_object);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Return::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.do_return(interpreter.accumulator().value_or(js_undefined()));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Increment::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto old_value = TRY(interpreter.accumulator().to_numeric(vm));
 | |
| 
 | |
|     if (old_value.is_number())
 | |
|         interpreter.accumulator() = Value(old_value.as_double() + 1);
 | |
|     else
 | |
|         interpreter.accumulator() = BigInt::create(vm, old_value.as_bigint().big_integer().plus(Crypto::SignedBigInteger { 1 }));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Decrement::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto old_value = TRY(interpreter.accumulator().to_numeric(vm));
 | |
| 
 | |
|     if (old_value.is_number())
 | |
|         interpreter.accumulator() = Value(old_value.as_double() - 1);
 | |
|     else
 | |
|         interpreter.accumulator() = BigInt::create(vm, old_value.as_bigint().big_integer().minus(Crypto::SignedBigInteger { 1 }));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Throw::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     return throw_completion(interpreter.accumulator());
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ThrowIfNotObject::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     if (!interpreter.accumulator().is_object())
 | |
|         return vm.throw_completion<TypeError>(ErrorType::NotAnObject, interpreter.accumulator().to_string_without_side_effects());
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ThrowIfNullish::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto value = interpreter.accumulator();
 | |
|     if (value.is_nullish())
 | |
|         return vm.throw_completion<TypeError>(ErrorType::NotObjectCoercible, value.to_string_without_side_effects());
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> EnterUnwindContext::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ScheduleJump::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> LeaveLexicalEnvironment::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.vm().running_execution_context().lexical_environment = interpreter.saved_lexical_environment_stack().take_last();
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> LeaveUnwindContext::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.leave_unwind_context();
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ContinuePendingUnwind::execute_impl(Bytecode::Interpreter&) const
 | |
| {
 | |
|     // Handled in the interpreter loop.
 | |
|     __builtin_unreachable();
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Yield::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto yielded_value = interpreter.accumulator().value_or(js_undefined());
 | |
|     auto object = Object::create(interpreter.realm(), nullptr);
 | |
|     object->define_direct_property("result", yielded_value, JS::default_attributes);
 | |
| 
 | |
|     if (m_continuation_label.has_value())
 | |
|         // FIXME: If we get a pointer, which is not accurately representable as a double
 | |
|         //        will cause this to explode
 | |
|         object->define_direct_property("continuation", Value(static_cast<double>(reinterpret_cast<u64>(&m_continuation_label->block()))), JS::default_attributes);
 | |
|     else
 | |
|         object->define_direct_property("continuation", Value(0), JS::default_attributes);
 | |
| 
 | |
|     object->define_direct_property("isAwait", Value(false), JS::default_attributes);
 | |
|     interpreter.do_return(object);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> Await::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto yielded_value = interpreter.accumulator().value_or(js_undefined());
 | |
|     auto object = Object::create(interpreter.realm(), nullptr);
 | |
|     object->define_direct_property("result", yielded_value, JS::default_attributes);
 | |
|     // FIXME: If we get a pointer, which is not accurately representable as a double
 | |
|     //        will cause this to explode
 | |
|     object->define_direct_property("continuation", Value(static_cast<double>(reinterpret_cast<u64>(&m_continuation_label.block()))), JS::default_attributes);
 | |
|     object->define_direct_property("isAwait", Value(true), JS::default_attributes);
 | |
|     interpreter.do_return(object);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetByValue::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(get_by_value(interpreter.vm(), interpreter.reg(m_base), interpreter.accumulator()));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetByValueWithThis::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
| 
 | |
|     // NOTE: Get the property key from the accumulator before side effects have a chance to overwrite it.
 | |
|     auto property_key_value = interpreter.accumulator();
 | |
| 
 | |
|     auto object = TRY(interpreter.reg(m_base).to_object(vm));
 | |
| 
 | |
|     auto property_key = TRY(property_key_value.to_property_key(vm));
 | |
| 
 | |
|     interpreter.accumulator() = TRY(object->internal_get(property_key, interpreter.reg(m_this_value)));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> PutByValue::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
| 
 | |
|     auto value = interpreter.accumulator();
 | |
|     TRY(put_by_value(vm, interpreter.reg(m_base), interpreter.reg(m_property), interpreter.accumulator(), m_kind));
 | |
|     interpreter.accumulator() = value;
 | |
| 
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> PutByValueWithThis::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
| 
 | |
|     // NOTE: Get the value from the accumulator before side effects have a chance to overwrite it.
 | |
|     auto value = interpreter.accumulator();
 | |
| 
 | |
|     auto base = interpreter.reg(m_base);
 | |
| 
 | |
|     auto property_key = m_kind != PropertyKind::Spread ? TRY(interpreter.reg(m_property).to_property_key(vm)) : PropertyKey {};
 | |
|     TRY(put_by_property_key(vm, base, interpreter.reg(m_this_value), value, property_key, m_kind));
 | |
|     interpreter.accumulator() = value;
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> DeleteByValue::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto base_value = interpreter.reg(m_base);
 | |
|     auto property_key_value = interpreter.accumulator();
 | |
|     interpreter.accumulator() = TRY(delete_by_value(interpreter, base_value, property_key_value));
 | |
| 
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> DeleteByValueWithThis::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     // NOTE: Get the property key from the accumulator before side effects have a chance to overwrite it.
 | |
|     auto property_key_value = interpreter.accumulator();
 | |
|     auto base_value = interpreter.reg(m_base);
 | |
|     auto this_value = interpreter.reg(m_this_value);
 | |
|     interpreter.accumulator() = TRY(delete_by_value_with_this(interpreter, base_value, property_key_value, this_value));
 | |
| 
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetIterator::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto iterator = TRY(get_iterator(vm, interpreter.accumulator(), m_hint));
 | |
|     interpreter.accumulator() = iterator_to_object(vm, iterator);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetMethod::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto identifier = interpreter.current_executable().get_identifier(m_property);
 | |
|     auto method = TRY(interpreter.accumulator().get_method(vm, identifier));
 | |
|     interpreter.accumulator() = method ?: js_undefined();
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> GetObjectPropertyIterator::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(get_object_property_iterator(interpreter.vm(), interpreter.accumulator()));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> IteratorClose::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto iterator_object = TRY(interpreter.accumulator().to_object(vm));
 | |
|     auto iterator = object_to_iterator(vm, iterator_object);
 | |
| 
 | |
|     // FIXME: Return the value of the resulting completion. (Note that m_completion_value can be empty!)
 | |
|     TRY(iterator_close(vm, iterator, Completion { m_completion_type, m_completion_value, {} }));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> AsyncIteratorClose::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto iterator_object = TRY(interpreter.accumulator().to_object(vm));
 | |
|     auto iterator = object_to_iterator(vm, iterator_object);
 | |
| 
 | |
|     // FIXME: Return the value of the resulting completion. (Note that m_completion_value can be empty!)
 | |
|     TRY(async_iterator_close(vm, iterator, Completion { m_completion_type, m_completion_value, {} }));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> IteratorNext::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto iterator_object = TRY(interpreter.accumulator().to_object(vm));
 | |
|     auto iterator = object_to_iterator(vm, iterator_object);
 | |
| 
 | |
|     interpreter.accumulator() = TRY(iterator_next(vm, iterator));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> IteratorResultDone::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto iterator_result = TRY(interpreter.accumulator().to_object(vm));
 | |
| 
 | |
|     auto complete = TRY(iterator_complete(vm, iterator_result));
 | |
|     interpreter.accumulator() = Value(complete);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> IteratorResultValue::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto iterator_result = TRY(interpreter.accumulator().to_object(vm));
 | |
| 
 | |
|     interpreter.accumulator() = TRY(iterator_value(vm, iterator_result));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> NewClass::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(new_class(interpreter.vm(), interpreter.accumulator(), m_class_expression, m_lhs_name));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| // 13.5.3.1 Runtime Semantics: Evaluation, https://tc39.es/ecma262/#sec-typeof-operator-runtime-semantics-evaluation
 | |
| ThrowCompletionOr<void> TypeofVariable::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     interpreter.accumulator() = TRY(typeof_variable(vm, interpreter.current_executable().get_identifier(m_identifier)));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> TypeofLocal::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto const& value = vm.running_execution_context().local_variables[m_index];
 | |
|     interpreter.accumulator() = PrimitiveString::create(vm, value.typeof());
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> ToNumeric::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     interpreter.accumulator() = TRY(interpreter.accumulator().to_numeric(interpreter.vm()));
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| ThrowCompletionOr<void> BlockDeclarationInstantiation::execute_impl(Bytecode::Interpreter& interpreter) const
 | |
| {
 | |
|     auto& vm = interpreter.vm();
 | |
|     auto old_environment = vm.running_execution_context().lexical_environment;
 | |
|     interpreter.saved_lexical_environment_stack().append(old_environment);
 | |
|     vm.running_execution_context().lexical_environment = new_declarative_environment(*old_environment);
 | |
|     m_scope_node.block_declaration_instantiation(vm, vm.running_execution_context().lexical_environment);
 | |
|     return {};
 | |
| }
 | |
| 
 | |
| DeprecatedString Load::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("Load {}", m_src);
 | |
| }
 | |
| 
 | |
| DeprecatedString LoadImmediate::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("LoadImmediate {}", m_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString Store::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("Store {}", m_dst);
 | |
| }
 | |
| 
 | |
| DeprecatedString NewBigInt::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("NewBigInt \"{}\"", m_bigint.to_base_deprecated(10));
 | |
| }
 | |
| 
 | |
| DeprecatedString NewArray::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     StringBuilder builder;
 | |
|     builder.append("NewArray"sv);
 | |
|     if (m_element_count != 0) {
 | |
|         builder.appendff(" [{}-{}]", m_elements[0], m_elements[1]);
 | |
|     }
 | |
|     return builder.to_deprecated_string();
 | |
| }
 | |
| 
 | |
| DeprecatedString Append::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     if (m_is_spread)
 | |
|         return DeprecatedString::formatted("Append lhs: **{}", m_lhs);
 | |
|     return DeprecatedString::formatted("Append lhs: {}", m_lhs);
 | |
| }
 | |
| 
 | |
| DeprecatedString IteratorToArray::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "IteratorToArray";
 | |
| }
 | |
| 
 | |
| DeprecatedString NewString::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("NewString {} (\"{}\")", m_string, executable.string_table->get(m_string));
 | |
| }
 | |
| 
 | |
| DeprecatedString NewObject::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "NewObject";
 | |
| }
 | |
| 
 | |
| DeprecatedString NewRegExp::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("NewRegExp source:{} (\"{}\") flags:{} (\"{}\")", m_source_index, executable.get_string(m_source_index), m_flags_index, executable.get_string(m_flags_index));
 | |
| }
 | |
| 
 | |
| DeprecatedString CopyObjectExcludingProperties::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     StringBuilder builder;
 | |
|     builder.appendff("CopyObjectExcludingProperties from:{}", m_from_object);
 | |
|     if (m_excluded_names_count != 0) {
 | |
|         builder.append(" excluding:["sv);
 | |
|         builder.join(", "sv, ReadonlySpan<Register>(m_excluded_names, m_excluded_names_count));
 | |
|         builder.append(']');
 | |
|     }
 | |
|     return builder.to_deprecated_string();
 | |
| }
 | |
| 
 | |
| DeprecatedString ConcatString::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("ConcatString {}", m_lhs);
 | |
| }
 | |
| 
 | |
| DeprecatedString GetCalleeAndThisFromEnvironment::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetCalleeAndThisFromEnvironment {} -> callee: {}, this:{} ", executable.identifier_table->get(m_identifier), m_callee_reg, m_this_reg);
 | |
| }
 | |
| 
 | |
| DeprecatedString GetVariable::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetVariable {} ({})", m_identifier, executable.identifier_table->get(m_identifier));
 | |
| }
 | |
| 
 | |
| DeprecatedString GetGlobal::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetGlobal {} ({})", m_identifier, executable.identifier_table->get(m_identifier));
 | |
| }
 | |
| 
 | |
| DeprecatedString GetLocal::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetLocal {}", m_index);
 | |
| }
 | |
| 
 | |
| DeprecatedString DeleteVariable::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("DeleteVariable {} ({})", m_identifier, executable.identifier_table->get(m_identifier));
 | |
| }
 | |
| 
 | |
| DeprecatedString CreateLexicalEnvironment::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "CreateLexicalEnvironment"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString CreateVariable::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     auto mode_string = m_mode == EnvironmentMode::Lexical ? "Lexical" : "Variable";
 | |
|     return DeprecatedString::formatted("CreateVariable env:{} immutable:{} global:{} {} ({})", mode_string, m_is_immutable, m_is_global, m_identifier, executable.identifier_table->get(m_identifier));
 | |
| }
 | |
| 
 | |
| DeprecatedString EnterObjectEnvironment::to_deprecated_string_impl(Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("EnterObjectEnvironment");
 | |
| }
 | |
| 
 | |
| DeprecatedString SetVariable::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     auto initialization_mode_name = m_initialization_mode == InitializationMode::Initialize ? "Initialize" : "Set";
 | |
|     auto mode_string = m_mode == EnvironmentMode::Lexical ? "Lexical" : "Variable";
 | |
|     return DeprecatedString::formatted("SetVariable env:{} init:{} {} ({})", mode_string, initialization_mode_name, m_identifier, executable.identifier_table->get(m_identifier));
 | |
| }
 | |
| 
 | |
| DeprecatedString SetLocal::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("SetLocal {}", m_index);
 | |
| }
 | |
| 
 | |
| static StringView property_kind_to_string(PropertyKind kind)
 | |
| {
 | |
|     switch (kind) {
 | |
|     case PropertyKind::Getter:
 | |
|         return "getter"sv;
 | |
|     case PropertyKind::Setter:
 | |
|         return "setter"sv;
 | |
|     case PropertyKind::KeyValue:
 | |
|         return "key-value"sv;
 | |
|     case PropertyKind::DirectKeyValue:
 | |
|         return "direct-key-value"sv;
 | |
|     case PropertyKind::Spread:
 | |
|         return "spread"sv;
 | |
|     case PropertyKind::ProtoSetter:
 | |
|         return "proto-setter"sv;
 | |
|     }
 | |
|     VERIFY_NOT_REACHED();
 | |
| }
 | |
| 
 | |
| DeprecatedString PutById::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     auto kind = property_kind_to_string(m_kind);
 | |
|     return DeprecatedString::formatted("PutById kind:{} base:{}, property:{} ({})", kind, m_base, m_property, executable.identifier_table->get(m_property));
 | |
| }
 | |
| 
 | |
| DeprecatedString PutByIdWithThis::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     auto kind = property_kind_to_string(m_kind);
 | |
|     return DeprecatedString::formatted("PutByIdWithThis kind:{} base:{}, property:{} ({}) this_value:{}", kind, m_base, m_property, executable.identifier_table->get(m_property), m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString PutPrivateById::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     auto kind = property_kind_to_string(m_kind);
 | |
|     return DeprecatedString::formatted("PutPrivateById kind:{} base:{}, property:{} ({})", kind, m_base, m_property, executable.identifier_table->get(m_property));
 | |
| }
 | |
| 
 | |
| DeprecatedString GetById::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetById {} ({})", m_property, executable.identifier_table->get(m_property));
 | |
| }
 | |
| 
 | |
| DeprecatedString GetByIdWithThis::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetByIdWithThis {} ({}) this_value:{}", m_property, executable.identifier_table->get(m_property), m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString GetPrivateById::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetPrivateById {} ({})", m_property, executable.identifier_table->get(m_property));
 | |
| }
 | |
| 
 | |
| DeprecatedString HasPrivateId::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("HasPrivateId {} ({})", m_property, executable.identifier_table->get(m_property));
 | |
| }
 | |
| 
 | |
| DeprecatedString DeleteById::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("DeleteById {} ({})", m_property, executable.identifier_table->get(m_property));
 | |
| }
 | |
| 
 | |
| DeprecatedString DeleteByIdWithThis::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("DeleteByIdWithThis {} ({}) this_value:{}", m_property, executable.identifier_table->get(m_property), m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString Jump::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     if (m_true_target.has_value())
 | |
|         return DeprecatedString::formatted("Jump {}", *m_true_target);
 | |
|     return DeprecatedString::formatted("Jump <empty>");
 | |
| }
 | |
| 
 | |
| DeprecatedString JumpConditional::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     auto true_string = m_true_target.has_value() ? DeprecatedString::formatted("{}", *m_true_target) : "<empty>";
 | |
|     auto false_string = m_false_target.has_value() ? DeprecatedString::formatted("{}", *m_false_target) : "<empty>";
 | |
|     return DeprecatedString::formatted("JumpConditional true:{} false:{}", true_string, false_string);
 | |
| }
 | |
| 
 | |
| DeprecatedString JumpNullish::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     auto true_string = m_true_target.has_value() ? DeprecatedString::formatted("{}", *m_true_target) : "<empty>";
 | |
|     auto false_string = m_false_target.has_value() ? DeprecatedString::formatted("{}", *m_false_target) : "<empty>";
 | |
|     return DeprecatedString::formatted("JumpNullish null:{} nonnull:{}", true_string, false_string);
 | |
| }
 | |
| 
 | |
| DeprecatedString JumpUndefined::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     auto true_string = m_true_target.has_value() ? DeprecatedString::formatted("{}", *m_true_target) : "<empty>";
 | |
|     auto false_string = m_false_target.has_value() ? DeprecatedString::formatted("{}", *m_false_target) : "<empty>";
 | |
|     return DeprecatedString::formatted("JumpUndefined undefined:{} not undefined:{}", true_string, false_string);
 | |
| }
 | |
| 
 | |
| static StringView call_type_to_string(CallType type)
 | |
| {
 | |
|     switch (type) {
 | |
|     case CallType::Call:
 | |
|         return ""sv;
 | |
|     case CallType::Construct:
 | |
|         return " (Construct)"sv;
 | |
|     case CallType::DirectEval:
 | |
|         return " (DirectEval)"sv;
 | |
|     }
 | |
|     VERIFY_NOT_REACHED();
 | |
| }
 | |
| 
 | |
| DeprecatedString Call::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     auto type = call_type_to_string(m_type);
 | |
|     if (m_expression_string.has_value())
 | |
|         return DeprecatedString::formatted("Call{} callee:{}, this:{}, first_arg:{} ({})", type, m_callee, m_this_value, m_first_argument, executable.get_string(m_expression_string.value()));
 | |
|     return DeprecatedString::formatted("Call{} callee:{}, this:{}, first_arg:{}", type, m_callee, m_first_argument, m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString CallWithArgumentArray::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     auto type = call_type_to_string(m_type);
 | |
|     if (m_expression_string.has_value())
 | |
|         return DeprecatedString::formatted("CallWithArgumentArray{} callee:{}, this:{}, arguments:[...acc] ({})", type, m_callee, m_this_value, executable.get_string(m_expression_string.value()));
 | |
|     return DeprecatedString::formatted("CallWithArgumentArray{} callee:{}, this:{}, arguments:[...acc]", type, m_callee, m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString SuperCallWithArgumentArray::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "SuperCallWithArgumentArray arguments:[...acc]"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString NewFunction::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     StringBuilder builder;
 | |
|     builder.append("NewFunction"sv);
 | |
|     if (m_function_node.has_name())
 | |
|         builder.appendff(" name:{}"sv, m_function_node.name());
 | |
|     if (m_lhs_name.has_value())
 | |
|         builder.appendff(" lhs_name:{}"sv, m_lhs_name.value());
 | |
|     if (m_home_object.has_value())
 | |
|         builder.appendff(" home_object:{}"sv, m_home_object.value());
 | |
|     return builder.to_deprecated_string();
 | |
| }
 | |
| 
 | |
| DeprecatedString NewClass::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     StringBuilder builder;
 | |
|     auto name = m_class_expression.name();
 | |
|     builder.appendff("NewClass '{}'"sv, name.is_null() ? ""sv : name);
 | |
|     if (m_lhs_name.has_value())
 | |
|         builder.appendff(" lhs_name:{}"sv, m_lhs_name.value());
 | |
|     return builder.to_deprecated_string();
 | |
| }
 | |
| 
 | |
| DeprecatedString Return::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "Return";
 | |
| }
 | |
| 
 | |
| DeprecatedString Increment::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "Increment";
 | |
| }
 | |
| 
 | |
| DeprecatedString Decrement::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "Decrement";
 | |
| }
 | |
| 
 | |
| DeprecatedString Throw::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "Throw";
 | |
| }
 | |
| 
 | |
| DeprecatedString ThrowIfNotObject::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "ThrowIfNotObject";
 | |
| }
 | |
| 
 | |
| DeprecatedString ThrowIfNullish::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "ThrowIfNullish";
 | |
| }
 | |
| 
 | |
| DeprecatedString EnterUnwindContext::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     auto handler_string = m_handler_target.has_value() ? DeprecatedString::formatted("{}", *m_handler_target) : "<empty>";
 | |
|     auto finalizer_string = m_finalizer_target.has_value() ? DeprecatedString::formatted("{}", *m_finalizer_target) : "<empty>";
 | |
|     return DeprecatedString::formatted("EnterUnwindContext handler:{} finalizer:{} entry:{}", handler_string, finalizer_string, m_entry_point);
 | |
| }
 | |
| 
 | |
| DeprecatedString ScheduleJump::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("ScheduleJump {}", m_target);
 | |
| }
 | |
| 
 | |
| DeprecatedString LeaveLexicalEnvironment::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "LeaveLexicalEnvironment"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString LeaveUnwindContext::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "LeaveUnwindContext";
 | |
| }
 | |
| 
 | |
| DeprecatedString ContinuePendingUnwind::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("ContinuePendingUnwind resume:{}", m_resume_target);
 | |
| }
 | |
| 
 | |
| DeprecatedString Yield::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     if (m_continuation_label.has_value())
 | |
|         return DeprecatedString::formatted("Yield continuation:@{}", m_continuation_label->block().name());
 | |
|     return DeprecatedString::formatted("Yield return");
 | |
| }
 | |
| 
 | |
| DeprecatedString Await::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("Await continuation:@{}", m_continuation_label.block().name());
 | |
| }
 | |
| 
 | |
| DeprecatedString GetByValue::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetByValue base:{}", m_base);
 | |
| }
 | |
| 
 | |
| DeprecatedString GetByValueWithThis::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetByValueWithThis base:{} this_value:{}", m_base, m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString PutByValue::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     auto kind = property_kind_to_string(m_kind);
 | |
|     return DeprecatedString::formatted("PutByValue kind:{} base:{}, property:{}", kind, m_base, m_property);
 | |
| }
 | |
| 
 | |
| DeprecatedString PutByValueWithThis::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     auto kind = property_kind_to_string(m_kind);
 | |
|     return DeprecatedString::formatted("PutByValueWithThis kind:{} base:{}, property:{} this_value:{}", kind, m_base, m_property, m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString DeleteByValue::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("DeleteByValue base:{}", m_base);
 | |
| }
 | |
| 
 | |
| DeprecatedString DeleteByValueWithThis::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("DeleteByValueWithThis base:{} this_value:{}", m_base, m_this_value);
 | |
| }
 | |
| 
 | |
| DeprecatedString GetIterator::to_deprecated_string_impl(Executable const&) const
 | |
| {
 | |
|     auto hint = m_hint == IteratorHint::Sync ? "sync" : "async";
 | |
|     return DeprecatedString::formatted("GetIterator hint:{}", hint);
 | |
| }
 | |
| 
 | |
| DeprecatedString GetMethod::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("GetMethod {} ({})", m_property, executable.identifier_table->get(m_property));
 | |
| }
 | |
| 
 | |
| DeprecatedString GetObjectPropertyIterator::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "GetObjectPropertyIterator";
 | |
| }
 | |
| 
 | |
| DeprecatedString IteratorClose::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     if (!m_completion_value.has_value())
 | |
|         return DeprecatedString::formatted("IteratorClose completion_type={} completion_value=<empty>", to_underlying(m_completion_type));
 | |
| 
 | |
|     auto completion_value_string = m_completion_value->to_string_without_side_effects();
 | |
|     return DeprecatedString::formatted("IteratorClose completion_type={} completion_value={}", to_underlying(m_completion_type), completion_value_string);
 | |
| }
 | |
| 
 | |
| DeprecatedString AsyncIteratorClose::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     if (!m_completion_value.has_value())
 | |
|         return DeprecatedString::formatted("AsyncIteratorClose completion_type={} completion_value=<empty>", to_underlying(m_completion_type));
 | |
| 
 | |
|     auto completion_value_string = m_completion_value->to_string_without_side_effects();
 | |
|     return DeprecatedString::formatted("AsyncIteratorClose completion_type={} completion_value={}", to_underlying(m_completion_type), completion_value_string);
 | |
| }
 | |
| 
 | |
| DeprecatedString IteratorNext::to_deprecated_string_impl(Executable const&) const
 | |
| {
 | |
|     return "IteratorNext";
 | |
| }
 | |
| 
 | |
| DeprecatedString IteratorResultDone::to_deprecated_string_impl(Executable const&) const
 | |
| {
 | |
|     return "IteratorResultDone";
 | |
| }
 | |
| 
 | |
| DeprecatedString IteratorResultValue::to_deprecated_string_impl(Executable const&) const
 | |
| {
 | |
|     return "IteratorResultValue";
 | |
| }
 | |
| 
 | |
| DeprecatedString ResolveThisBinding::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "ResolveThisBinding"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString ResolveSuperBase::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "ResolveSuperBase"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString GetNewTarget::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "GetNewTarget"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString GetImportMeta::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "GetImportMeta"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString TypeofVariable::to_deprecated_string_impl(Bytecode::Executable const& executable) const
 | |
| {
 | |
|     return DeprecatedString::formatted("TypeofVariable {} ({})", m_identifier, executable.identifier_table->get(m_identifier));
 | |
| }
 | |
| 
 | |
| DeprecatedString TypeofLocal::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("TypeofLocal {}", m_index);
 | |
| }
 | |
| 
 | |
| DeprecatedString ToNumeric::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "ToNumeric"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString BlockDeclarationInstantiation::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return "BlockDeclarationInstantiation"sv;
 | |
| }
 | |
| 
 | |
| DeprecatedString ImportCall::to_deprecated_string_impl(Bytecode::Executable const&) const
 | |
| {
 | |
|     return DeprecatedString::formatted("ImportCall specifier:{} options:{}"sv, m_specifier, m_options);
 | |
| }
 | |
| 
 | |
| }
 | 
