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LibJS/Bytecode: Implement initial support for super member expressions

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This commit is contained in:
Luke Wilde
2023-05-15 18:45:16 +01:00
committed by Andreas Kling
parent 00493687f2
commit b15128c45b
5 changed files with 137 additions and 31 deletions
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25
Userland/Libraries/LibJS/Bytecode/Op.cpp
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@@ -530,6 +530,26 @@ ThrowCompletionOr<void> ResolveThisBinding::execute_impl(Bytecode::Interpreter&
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().
auto base_value = TRY(env.get_super_base());
// 4. Let bv be ? RequireObjectCoercible(baseValue).
interpreter.accumulator() = TRY(require_object_coercible(vm, base_value));
return {};
}
ThrowCompletionOr<void> GetNewTarget::execute_impl(Bytecode::Interpreter& interpreter) const
{
interpreter.accumulator() = interpreter.vm().get_new_target();
@@ -1383,6 +1403,11 @@ DeprecatedString ResolveThisBinding::to_deprecated_string_impl(Bytecode::Executa
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;