avm2: Add ioErrorEvent stub

core/src/avm2/globals.rs

@@ -573,6 +573,11 @@ pub fn load_player_globals<'gc>(
         flash::events::mouseevent::create_class(mc),
         script
     );
+    class(
+        activation,
+        flash::events::ioerrorevent::create_class(mc),
+        script,
+    )?;
     class(
         activation,
         flash::events::keyboardevent::create_class(mc),

core/src/avm2/globals/flash/events.rs

@@ -6,6 +6,7 @@ pub mod eventdispatcher;
 pub mod eventphase;
 pub mod fullscreenevent;
 pub mod ieventdispatcher;
+pub mod ioerrorevent;
 pub mod keyboardevent;
 pub mod mouseevent;
 pub mod progressevent;

core/src/avm2/globals/flash/events/ioerrorevent.rs

@@ -0,0 +1,51 @@
+use crate::avm2::activation::Activation;
+use crate::avm2::class::{Class, ClassAttributes};
+use crate::avm2::method::Method;
+use crate::avm2::names::{Namespace, QName};
+use crate::avm2::object::Object;
+use crate::avm2::value::Value;
+use crate::avm2::Error;
+use gc_arena::{GcCell, MutationContext};
+
+/// Implements `flash.events.IOErrorEvent`'s instance constructor.
+pub fn instance_init<'gc>(
+    activation: &mut Activation<'_, 'gc, '_>,
+    this: Option<Object<'gc>>,
+    args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    if let Some(this) = this {
+        activation.super_init(this, args)?; // ErrorEvent, Event use these
+    }
+    Ok(Value::Undefined)
+}
+
+/// Implements `flash.events.IOErrorEvent`'s class constructor.
+pub fn class_init<'gc>(
+    _activation: &mut Activation<'_, 'gc, '_>,
+    _this: Option<Object<'gc>>,
+    _args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    Ok(Value::Undefined)
+}
+
+/// Construct `IOErrorEvent`'s class.
+pub fn create_class<'gc>(mc: MutationContext<'gc, '_>) -> GcCell<'gc, Class<'gc>> {
+    let class = Class::new(
+        QName::new(Namespace::package("flash.events"), "IOErrorEvent"),
+        // TODO: this should derive IOErrorEvent -> ErrorEvent -> TextEvent -> Event
+        Some(QName::new(Namespace::package("flash.events"), "Event").into()),
+        Method::from_builtin(instance_init, "<IOErrorEvent instance initializer>", mc),
+        Method::from_builtin(class_init, "<IOErrorEvent class initializer>", mc),
+        mc,
+    );
+
+    let mut write = class.write(mc);
+
+    write.set_attributes(ClassAttributes::SEALED);
+
+    const CONSTANTS: &[(&str, &str)] = &[("IO_ERROR", "ioError")];
+
+    write.define_public_constant_string_class_traits(CONSTANTS);
+
+    class
+}