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Spreadsheet: No longer use vm.exception() to signal exception state

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Instead, use the completions which are returned directly. This means we
no longer have to worry about the global VM state when running code.
This commit is contained in:
davidot 2022-02-07 15:00:40 +01:00 • committed by Linus Groh
parent e160f508a8
commit 4ef1e8f226
11 changed files with 98 additions and 97 deletions
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36
Userland/Applications/Spreadsheet/Spreadsheet.cpp
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@ -60,15 +60,22 @@ Sheet::Sheet(Workbook& workbook)
warnln("SyntaxError: {}", error.to_string());
}
} else {
(void)interpreter().run(script_or_error.value());
if (auto* exception = interpreter().exception()) {
auto result = interpreter().run(script_or_error.value());
if (result.is_error()) {
warnln("Spreadsheet: Failed to run runtime code:");
for (auto& traceback_frame : exception->traceback()) {
auto& function_name = traceback_frame.function_name;
auto& source_range = traceback_frame.source_range;
dbgln(" {} at {}:{}:{}", function_name, source_range.filename, source_range.start.line, source_range.start.column);
auto thrown_value = *result.throw_completion().value();
warn("Threw: {}", thrown_value.to_string_without_side_effects());
if (thrown_value.is_object() && is<JS::Error>(thrown_value.as_object())) {
auto& error = static_cast<JS::Error const&>(thrown_value.as_object());
warnln(" with message '{}'", error.get_without_side_effects(interpreter().vm().names.message));
for (auto& traceback_frame : error.traceback()) {
auto& function_name = traceback_frame.function_name;
auto& source_range = traceback_frame.source_range;
dbgln(" {} at {}:{}:{}", function_name, source_range.filename, source_range.start.line, source_range.start.column);
}
} else {
warnln();
}
interpreter().vm().clear_exception();
}
}
}
@ -159,22 +166,15 @@ void Sheet::update(Cell& cell)
}
}
Sheet::ValueAndException Sheet::evaluate(StringView source, Cell* on_behalf_of)
JS::ThrowCompletionOr<JS::Value> Sheet::evaluate(StringView source, Cell* on_behalf_of)
{
TemporaryChange cell_change { m_current_cell_being_evaluated, on_behalf_of };
ScopeGuard clear_exception { [&] { interpreter().vm().clear_exception(); } };
auto script_or_error = JS::Script::parse(source, interpreter().realm());
// FIXME: Convert parser errors to exceptions to show them to the user.
if (script_or_error.is_error() || interpreter().exception())
return { JS::js_undefined(), interpreter().exception() };
if (script_or_error.is_error())
return interpreter().vm().throw_completion<JS::SyntaxError>(interpreter().global_object(), script_or_error.error().first().to_string());
auto result = interpreter().run(script_or_error.value());
if (result.is_error()) {
auto* exc = interpreter().exception();
return { JS::js_undefined(), exc };
}
return { result.value(), {} };
return interpreter().run(script_or_error.value());
}
Cell* Sheet::at(StringView name)