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LibJS/Bytecode: Propagate FunctionDeclarationInstantiation exceptions

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If an exception is thrown by FunctionDeclarationInstantiation for an
async or async-generator function, we still need to return a promise.
We can't just throw the exception.

81 new passes on test262. :^)
This commit is contained in:
Andreas Kling 2023-06-26 21:34:08 +02:00 committed by Jelle Raaijmakers
parent 57404bae1f
commit 9430bbcc62
Notes: sideshowbarker 2024-07-17 02:39:10 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/9430bbcc62
Pull-request: https://github.com/SerenityOS/serenity/pull/19659
1 changed files with 14 additions and 2 deletions
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16
Userland/Libraries/LibJS/Runtime/ECMAScriptFunctionObject.cpp
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@ -861,10 +861,22 @@ Completion ECMAScriptFunctionObject::ordinary_call_evaluate_body()
}
}
TRY(function_declaration_instantiation(nullptr));
auto declaration_result = function_declaration_instantiation(nullptr);
if (!m_bytecode_executable) {
if (m_kind == FunctionKind::Normal || m_kind == FunctionKind::Generator) {
if (declaration_result.is_error())
return declaration_result.release_error();
}
if (!m_bytecode_executable)
m_bytecode_executable = TRY(Bytecode::compile(vm, *m_ecmascript_code, m_kind, m_name));
if (m_kind == FunctionKind::Async || m_kind == FunctionKind::AsyncGenerator) {
if (declaration_result.is_throw_completion()) {
auto promise_capability = MUST(new_promise_capability(vm, realm.intrinsics().promise_constructor()));
MUST(call(vm, *promise_capability->reject(), js_undefined(), *declaration_result.throw_completion().value()));
return Completion { Completion::Type::Return, promise_capability->promise(), {} };
}
}
auto result_and_frame = bytecode_interpreter->run_and_return_frame(realm, *m_bytecode_executable, nullptr);