avm2: Implement `in`

core/src/avm2/activation.rs

@@ -450,6 +450,7 @@ impl<'a, 'gc, 'gc_context> Activation<'a, 'gc, 'gc_context> {
                 Op::DeleteProperty { index } => self.op_delete_property(method, index),
                 Op::GetSuper { index } => self.op_get_super(method, index),
                 Op::SetSuper { index } => self.op_set_super(method, index),
+                Op::In => self.op_in(),
                 Op::PushScope => self.op_push_scope(),
                 Op::PushWith => self.op_push_with(),
                 Op::PopScope => self.op_pop_scope(),
@@ -1033,6 +1034,24 @@ impl<'a, 'gc, 'gc_context> Activation<'a, 'gc, 'gc_context> {
         Ok(FrameControl::Continue)
     }
 
+    fn op_in(&mut self) -> Result<FrameControl<'gc>, Error> {
+        let obj = self.context.avm2.pop().coerce_to_object(self)?;
+        let name = self.context.avm2.pop().coerce_to_string(self)?;
+
+        let mut has_prop = false;
+
+        if let Some(ns) = obj.resolve_any(name)? {
+            if !ns.is_private() {
+                let qname = QName::new(ns, name);
+                has_prop = obj.has_property(&qname)?;
+            }
+        }
+
+        self.context.avm2.push(has_prop);
+
+        Ok(FrameControl::Continue)
+    }
+
     fn op_push_scope(&mut self) -> Result<FrameControl<'gc>, Error> {
         let object = self.context.avm2.pop().coerce_to_object(self)?;
         let scope_stack = self.scope();

core/tests/regression_tests.rs

@@ -351,6 +351,7 @@ swf_tests! {
     (as3_rshift, "avm2/rshift", 1),
     (as3_subtract, "avm2/subtract", 1),
     (as3_urshift, "avm2/urshift", 1),
+    (as3_in, "avm2/in", 1),
 }
 
 // TODO: These tests have some inaccuracies currently, so we use approx_eq to test that numeric values are close enough.

core/tests/swfs/avm2/in/Test.as

@@ -0,0 +1,177 @@
+package {
+	public class Test {}
+}
+
+class ES4Class extends Object {
+	public var test_var = "var";
+	public const test_const = "const";
+
+	public function test_function() {
+		trace("test_function");
+	}
+
+	public function get test_virt() {
+		return "test_virt";
+	}
+
+	public function set test_virt(val) {
+		trace("test_virt");
+	}
+
+	public static var test_static_var = "var";
+	public static const test_static_const = "const";
+
+	public static function test_static_function() {
+		trace("test_static_function");
+	}
+
+	public static function get test_static_virt() {
+		return "test_static_virt";
+	}
+
+	public static function set test_static_virt(val) {
+		trace("test_static_virt");
+	}
+	
+	private var test_private_var = "private_var";
+	private const test_private_const = "private_const";
+	
+	private function test_private_function() {
+		trace("test_private_function");
+	}
+
+	private function get test_private_virt() {
+		return "test_private_virt";
+	}
+
+	private function set test_private_virt(val) {
+		trace("test_private_virt");
+	}
+}
+
+function ES3Class() {
+	this.test_var = "var";
+}
+
+ES3Class.test_static_var = "var";
+
+ES3Class.test_static_function = function () {
+	trace("test_static_function");
+}
+
+ES3Class.prototype.test_function = function() {
+	trace("test_function");
+}
+
+ES3Class.prototype.test_proto = "proto_var";
+
+var es4inst = new ES4Class();
+var es3inst = new ES3Class();
+
+trace("//'test_var' in es4inst");
+trace('test_var' in es4inst);
+trace("//'test_const' in es4inst");
+trace('test_const' in es4inst);
+trace("//'test_function' in es4inst");
+trace('test_function' in es4inst);
+trace("//'test_virt' in es4inst");
+trace('test_virt' in es4inst);
+trace("//'test_static_var' in es4inst");
+trace('test_static_var' in es4inst);
+trace("//'test_static_const' in es4inst");
+trace('test_static_const' in es4inst);
+trace("//'test_static_function' in es4inst");
+trace('test_static_function' in es4inst);
+trace("//'test_static_virt' in es4inst");
+trace('test_static_virt' in es4inst);
+trace("//'test_private_var' in es4inst");
+trace('test_private_var' in es4inst);
+trace("//'test_private_const' in es4inst");
+trace('test_private_const' in es4inst);
+trace("//'test_private_function' in es4inst");
+trace('test_private_function' in es4inst);
+trace("//'test_private_virt' in es4inst");
+trace('test_private_virt' in es4inst);
+
+trace("//'test_var' in ES4Class");
+trace('test_var' in ES4Class);
+trace("//'test_const' in ES4Class");
+trace('test_const' in ES4Class);
+trace("//'test_function' in ES4Class");
+trace('test_function' in ES4Class);
+trace("//'test_virt' in ES4Class");
+trace('test_virt' in ES4Class);
+trace("//'test_static_var' in ES4Class");
+trace('test_static_var' in ES4Class);
+trace("//'test_static_const' in ES4Class");
+trace('test_static_const' in ES4Class);
+trace("//'test_static_function' in ES4Class");
+trace('test_static_function' in ES4Class);
+trace("//'test_static_virt' in ES4Class");
+trace('test_static_virt' in ES4Class);
+trace("//'test_private_var' in ES4Class");
+trace('test_private_var' in ES4Class);
+trace("//'test_private_const' in ES4Class");
+trace('test_private_const' in ES4Class);
+trace("//'test_private_function' in ES4Class");
+trace('test_private_function' in ES4Class);
+trace("//'test_private_virt' in ES4Class");
+trace('test_private_virt' in ES4Class);
+
+trace("//'test_var' in ES4Class.prototype");
+trace('test_var' in ES4Class.prototype);
+trace("//'test_const' in ES4Class.prototype");
+trace('test_const' in ES4Class.prototype);
+trace("//'test_function' in ES4Class.prototype");
+trace('test_function' in ES4Class.prototype);
+trace("//'test_virt' in ES4Class.prototype");
+trace('test_virt' in ES4Class.prototype);
+trace("//'test_static_var' in ES4Class.prototype");
+trace('test_static_var' in ES4Class.prototype);
+trace("//'test_static_const' in ES4Class.prototype");
+trace('test_static_const' in ES4Class.prototype);
+trace("//'test_static_function' in ES4Class.prototype");
+trace('test_static_function' in ES4Class.prototype);
+trace("//'test_static_virt' in ES4Class.prototype");
+trace('test_static_virt' in ES4Class.prototype);
+trace("//'test_private_var' in ES4Class.prototype");
+trace('test_private_var' in ES4Class.prototype);
+trace("//'test_private_const' in ES4Class.prototype");
+trace('test_private_const' in ES4Class.prototype);
+trace("//'test_private_function' in ES4Class.prototype");
+trace('test_private_function' in ES4Class.prototype);
+trace("//'test_private_virt' in ES4Class.prototype");
+trace('test_private_virt' in ES4Class.prototype);
+
+trace("//'test_var' in es3inst");
+trace('test_var' in es3inst);
+trace("//'test_function' in es3inst");
+trace('test_function' in es3inst);
+trace("//'test_proto' in es3inst");
+trace('test_proto' in es3inst);
+trace("//'test_static_var' in es3inst");
+trace('test_static_var' in es3inst);
+trace("//'test_static_function' in es3inst");
+trace('test_static_function' in es3inst);
+
+trace("//'test_var' in ES3Class");
+trace('test_var' in ES3Class);
+trace("//'test_function' in ES3Class");
+trace('test_function' in ES3Class);
+trace("//'test_proto' in ES3Class");
+trace('test_proto' in ES3Class);
+trace("//'test_static_var' in ES3Class");
+trace('test_static_var' in ES3Class);
+trace("//'test_static_function' in ES3Class");
+trace('test_static_function' in ES3Class);
+
+trace("//'test_var' in ES3Class.prototype");
+trace('test_var' in ES3Class.prototype);
+trace("//'test_function' in ES3Class.prototype");
+trace('test_function' in ES3Class.prototype);
+trace("//'test_proto' in ES3Class.prototype");
+trace('test_proto' in ES3Class.prototype);
+trace("//'test_static_var' in ES3Class.prototype");
+trace('test_static_var' in ES3Class.prototype);
+trace("//'test_static_function' in ES3Class.prototype");
+trace('test_static_function' in ES3Class.prototype);

core/tests/swfs/avm2/in/output.txt

@@ -0,0 +1,102 @@
+//'test_var' in es4inst
+true
+//'test_const' in es4inst
+true
+//'test_function' in es4inst
+true
+//'test_virt' in es4inst
+true
+//'test_static_var' in es4inst
+false
+//'test_static_const' in es4inst
+false
+//'test_static_function' in es4inst
+false
+//'test_static_virt' in es4inst
+false
+//'test_private_var' in es4inst
+false
+//'test_private_const' in es4inst
+false
+//'test_private_function' in es4inst
+false
+//'test_private_virt' in es4inst
+false
+//'test_var' in ES4Class
+false
+//'test_const' in ES4Class
+false
+//'test_function' in ES4Class
+false
+//'test_virt' in ES4Class
+false
+//'test_static_var' in ES4Class
+true
+//'test_static_const' in ES4Class
+true
+//'test_static_function' in ES4Class
+true
+//'test_static_virt' in ES4Class
+true
+//'test_private_var' in ES4Class
+false
+//'test_private_const' in ES4Class
+false
+//'test_private_function' in ES4Class
+false
+//'test_private_virt' in ES4Class
+false
+//'test_var' in ES4Class.prototype
+false
+//'test_const' in ES4Class.prototype
+false
+//'test_function' in ES4Class.prototype
+false
+//'test_virt' in ES4Class.prototype
+false
+//'test_static_var' in ES4Class.prototype
+false
+//'test_static_const' in ES4Class.prototype
+false
+//'test_static_function' in ES4Class.prototype
+false
+//'test_static_virt' in ES4Class.prototype
+false
+//'test_private_var' in ES4Class.prototype
+false
+//'test_private_const' in ES4Class.prototype
+false
+//'test_private_function' in ES4Class.prototype
+false
+//'test_private_virt' in ES4Class.prototype
+false
+//'test_var' in es3inst
+true
+//'test_function' in es3inst
+true
+//'test_proto' in es3inst
+true
+//'test_static_var' in es3inst
+false
+//'test_static_function' in es3inst
+false
+//'test_var' in ES3Class
+false
+//'test_function' in ES3Class
+false
+//'test_proto' in ES3Class
+false
+//'test_static_var' in ES3Class
+true
+//'test_static_function' in ES3Class
+true
+//'test_var' in ES3Class.prototype
+false
+//'test_function' in ES3Class.prototype
+true
+//'test_proto' in ES3Class.prototype
+true
+//'test_static_var' in ES3Class.prototype
+false
+//'test_static_function' in ES3Class.prototype
+false