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LibJS+Everywhere: Convert JS::Error to String

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This includes an Error::create overload to create an Error from a UTF-8
StringView. If creating a String from that view fails, the factory will
return an OOM InternalError instead. VM::throw_completion can also make
use of this overload via its perfect forwarding.
This commit is contained in:
Timothy Flynn 2023-02-16 14:09:11 -05:00 • committed by Tim Flynn
parent 153b793638
commit 88814acbd3
36 changed files with 198 additions and 151 deletions
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31
Meta/Lagom/Wasm/js_repl.cpp
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@ -107,7 +107,7 @@ static bool s_opt_bytecode = false;
static bool s_as_module = false;
static bool s_print_last_result = false;
static bool parse_and_run(JS::Interpreter& interpreter, StringView source, StringView source_name)
static ErrorOr<bool> parse_and_run(JS::Interpreter& interpreter, StringView source, StringView source_name)
{
enum class ReturnEarly {
No,
@ -116,14 +116,14 @@ static bool parse_and_run(JS::Interpreter& interpreter, StringView source, Strin
JS::ThrowCompletionOr<JS::Value> result { JS::js_undefined() };
auto run_script_or_module = [&](auto& script_or_module) {
auto run_script_or_module = [&](auto& script_or_module) -> ErrorOr<ReturnEarly> {
if (s_dump_ast)
script_or_module->parse_node().dump(0);
if (JS::Bytecode::g_dump_bytecode || s_run_bytecode) {
auto executable_result = JS::Bytecode::Generator::generate(script_or_module->parse_node());
if (executable_result.is_error()) {
result = g_vm->throw_completion<JS::InternalError>(executable_result.error().to_deprecated_string());
result = g_vm->throw_completion<JS::InternalError>(TRY(executable_result.error().to_string()));
return ReturnEarly::No;
}
@ -161,10 +161,12 @@ static bool parse_and_run(JS::Interpreter& interpreter, StringView source, Strin
auto hint = error.source_location_hint(source);
if (!hint.is_empty())
displayln("{}", hint);
displayln("{}", error.to_deprecated_string());
result = interpreter.vm().throw_completion<JS::SyntaxError>(error.to_deprecated_string());
auto error_string = TRY(error.to_string());
displayln("{}", error_string);
result = interpreter.vm().throw_completion<JS::SyntaxError>(move(error_string));
} else {
auto return_early = run_script_or_module(script_or_error.value());
auto return_early = TRY(run_script_or_module(script_or_error.value()));
if (return_early == ReturnEarly::Yes)
return true;
}
@ -175,10 +177,12 @@ static bool parse_and_run(JS::Interpreter& interpreter, StringView source, Strin
auto hint = error.source_location_hint(source);
if (!hint.is_empty())
displayln("{}", hint);
displayln(error.to_deprecated_string());
result = interpreter.vm().throw_completion<JS::SyntaxError>(error.to_deprecated_string());
auto error_string = TRY(error.to_string());
displayln("{}", error_string);
result = interpreter.vm().throw_completion<JS::SyntaxError>(move(error_string));
} else {
auto return_early = run_script_or_module(module_or_error.value());
auto return_early = TRY(run_script_or_module(module_or_error.value()));
if (return_early == ReturnEarly::Yes)
return true;
}
@ -269,7 +273,7 @@ JS_DEFINE_NATIVE_FUNCTION(ReplObject::print)
{
auto result = ::print(vm.argument(0));
if (result.is_error())
return g_vm->throw_completion<JS::InternalError>(DeprecatedString::formatted("Failed to print value: {}", result.error()));
return g_vm->throw_completion<JS::InternalError>(TRY_OR_THROW_OOM(*g_vm, String::formatted("Failed to print value: {}", result.error())));
displayln();
@ -388,5 +392,10 @@ extern "C" int initialize_repl(char const* time_zone)
extern "C" bool execute(char const* source)
{
return parse_and_run(*g_interpreter, { source, strlen(source) }, "REPL"sv);
if (auto result = parse_and_run(*g_interpreter, { source, strlen(source) }, "REPL"sv); result.is_error()) {
displayln("{}", result.error());
return false;
} else {
return result.value();
}
}