diff options
| author | Linus Groh <mail@linusgroh.de> | 2021-06-11 20:40:08 +0100 |
|---|---|---|
| committer | Linus Groh <mail@linusgroh.de> | 2021-06-11 21:34:05 +0100 |
| commit | 862ba6403738224ce683397d496ac43dcb806e1c (patch) | |
| tree | 2adb774b7ad77455113279c280dc59e01d52c33f /Userland/Libraries/LibJS/Runtime/ErrorConstructor.cpp | |
| parent | 8d77a3297a0722e6f6dcb0ffb564ed016c0cfc20 (diff) | |
| download | serenity-862ba6403738224ce683397d496ac43dcb806e1c.zip | |
LibJS: Implement the Error Cause proposal
Currently stage 3. https://github.com/tc39/proposal-error-cause
Diffstat (limited to 'Userland/Libraries/LibJS/Runtime/ErrorConstructor.cpp')
| -rw-r--r-- | Userland/Libraries/LibJS/Runtime/ErrorConstructor.cpp | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/Userland/Libraries/LibJS/Runtime/ErrorConstructor.cpp b/Userland/Libraries/LibJS/Runtime/ErrorConstructor.cpp index f7eae02791..bae4f731e7 100644 --- a/Userland/Libraries/LibJS/Runtime/ErrorConstructor.cpp +++ b/Userland/Libraries/LibJS/Runtime/ErrorConstructor.cpp @@ -31,13 +31,23 @@ Value ErrorConstructor::call() Value ErrorConstructor::construct(Function&) { auto& vm = this->vm(); - String message; + // FIXME: Use OrdinaryCreateFromConstructor(newTarget, "%Error.prototype%") + auto* error = Error::create(global_object()); + + u8 attr = Attribute::Writable | Attribute::Configurable; + if (!vm.argument(0).is_undefined()) { - message = vm.argument(0).to_string(global_object()); + auto message = vm.argument(0).to_string(global_object()); if (vm.exception()) return {}; + error->define_property(vm.names.message, js_string(vm, message), attr); } - return Error::create(global_object(), message); + + error->install_error_cause(vm.argument(1)); + if (vm.exception()) + return {}; + + return error; } #define __JS_ENUMERATE(ClassName, snake_name, PrototypeName, ConstructorName, ArrayType) \ @@ -64,13 +74,24 @@ Value ErrorConstructor::construct(Function&) Value ConstructorName::construct(Function&) \ { \ auto& vm = this->vm(); \ - String message = ""; \ + /* FIXME: Use OrdinaryCreateFromConstructor( \ + * FIXME: newTarget, "%NativeError.prototype%"). */ \ + auto* error = ClassName::create(global_object()); \ + \ + u8 attr = Attribute::Writable | Attribute::Configurable; \ + \ if (!vm.argument(0).is_undefined()) { \ - message = vm.argument(0).to_string(global_object()); \ + auto message = vm.argument(0).to_string(global_object()); \ if (vm.exception()) \ return {}; \ + error->define_property(vm.names.message, js_string(vm, message), attr); \ } \ - return ClassName::create(global_object(), message); \ + \ + error->install_error_cause(vm.argument(1)); \ + if (vm.exception()) \ + return {}; \ + \ + return error; \ } JS_ENUMERATE_NATIVE_ERRORS |