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Diffstat (limited to 'modules/mono/glue/Managed/Files/DynamicObject.cs')
| -rw-r--r-- | modules/mono/glue/Managed/Files/DynamicObject.cs | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/modules/mono/glue/Managed/Files/DynamicObject.cs b/modules/mono/glue/Managed/Files/DynamicObject.cs deleted file mode 100644 index a0f105d55e..0000000000 --- a/modules/mono/glue/Managed/Files/DynamicObject.cs +++ /dev/null @@ -1,213 +0,0 @@ - -using System; -using System.Collections.Generic; -using System.Dynamic; -using System.Linq.Expressions; -using System.Runtime.CompilerServices; - -namespace Godot -{ - /// <summary> - /// Represents an <see cref="Godot.Object"/> whose members can be dynamically accessed at runtime through the Variant API. - /// </summary> - /// <remarks> - /// <para> - /// The <see cref="Godot.DynamicGodotObject"/> class enables access to the Variant - /// members of a <see cref="Godot.Object"/> instance at runtime. - /// </para> - /// <para> - /// This allows accessing the class members using their original names in the engine as well as the members from the - /// script attached to the <see cref="Godot.Object"/>, regardless of the scripting language it was written in. - /// </para> - /// </remarks> - /// <example> - /// This sample shows how to use <see cref="Godot.DynamicGodotObject"/> to dynamically access the engine members of a <see cref="Godot.Object"/>. - /// <code> - /// dynamic sprite = GetNode("Sprite").DynamicGodotObject; - /// sprite.add_child(this); - /// - /// if ((sprite.hframes * sprite.vframes) > 0) - /// sprite.frame = 0; - /// </code> - /// </example> - /// <example> - /// This sample shows how to use <see cref="Godot.DynamicGodotObject"/> to dynamically access the members of the script attached to a <see cref="Godot.Object"/>. - /// <code> - /// dynamic childNode = GetNode("ChildNode").DynamicGodotObject; - /// - /// if (childNode.print_allowed) - /// { - /// childNode.message = "Hello from C#"; - /// childNode.print_message(3); - /// } - /// </code> - /// The <c>ChildNode</c> node has the following GDScript script attached: - /// <code> - /// // # ChildNode.gd - /// // var print_allowed = true - /// // var message = "" - /// // - /// // func print_message(times): - /// // for i in times: - /// // print(message) - /// </code> - /// </example> - public class DynamicGodotObject : DynamicObject - { - /// <summary> - /// Gets the <see cref="Godot.Object"/> associated with this <see cref="Godot.DynamicGodotObject"/>. - /// </summary> - public Object Value { get; } - - /// <summary> - /// Initializes a new instance of the <see cref="Godot.DynamicGodotObject"/> class. - /// </summary> - /// <param name="godotObject"> - /// The <see cref="Godot.Object"/> that will be associated with this <see cref="Godot.DynamicGodotObject"/>. - /// </param> - /// <exception cref="System.ArgumentNullException"> - /// Thrown when the <paramref name="godotObject"/> parameter is null. - /// </exception> - public DynamicGodotObject(Object godotObject) - { - if (godotObject == null) - throw new ArgumentNullException(nameof(godotObject)); - - this.Value = godotObject; - } - - public override IEnumerable<string> GetDynamicMemberNames() - { - return godot_icall_DynamicGodotObject_SetMemberList(Object.GetPtr(Value)); - } - - public override bool TryBinaryOperation(BinaryOperationBinder binder, object arg, out object result) - { - switch (binder.Operation) - { - case ExpressionType.Equal: - case ExpressionType.NotEqual: - if (binder.ReturnType == typeof(bool) || binder.ReturnType.IsAssignableFrom(typeof(bool))) - { - if (arg == null) - { - bool boolResult = Object.IsInstanceValid(Value); - - if (binder.Operation == ExpressionType.Equal) - boolResult = !boolResult; - - result = boolResult; - return true; - } - - if (arg is Object other) - { - bool boolResult = (Value == other); - - if (binder.Operation == ExpressionType.NotEqual) - boolResult = !boolResult; - - result = boolResult; - return true; - } - } - - break; - default: - // We're not implementing operators <, <=, >, and >= (LessThan, LessThanOrEqual, GreaterThan, GreaterThanOrEqual). - // These are used on the actual pointers in variant_op.cpp. It's better to let the user do that explicitly. - break; - } - - return base.TryBinaryOperation(binder, arg, out result); - } - - public override bool TryConvert(ConvertBinder binder, out object result) - { - if (binder.Type == typeof(Object)) - { - result = Value; - return true; - } - - if (typeof(Object).IsAssignableFrom(binder.Type)) - { - // Throws InvalidCastException when the cast fails - result = Convert.ChangeType(Value, binder.Type); - return true; - } - - return base.TryConvert(binder, out result); - } - - public override bool TryGetIndex(GetIndexBinder binder, object[] indexes, out object result) - { - if (indexes.Length == 1) - { - if (indexes[0] is string name) - { - return godot_icall_DynamicGodotObject_GetMember(Object.GetPtr(Value), name, out result); - } - } - - return base.TryGetIndex(binder, indexes, out result); - } - - public override bool TryGetMember(GetMemberBinder binder, out object result) - { - return godot_icall_DynamicGodotObject_GetMember(Object.GetPtr(Value), binder.Name, out result); - } - - public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result) - { - return godot_icall_DynamicGodotObject_InvokeMember(Object.GetPtr(Value), binder.Name, args, out result); - } - - public override bool TrySetIndex(SetIndexBinder binder, object[] indexes, object value) - { - if (indexes.Length == 1) - { - if (indexes[0] is string name) - { - return godot_icall_DynamicGodotObject_SetMember(Object.GetPtr(Value), name, value); - } - } - - return base.TrySetIndex(binder, indexes, value); - } - - public override bool TrySetMember(SetMemberBinder binder, object value) - { - return godot_icall_DynamicGodotObject_SetMember(Object.GetPtr(Value), binder.Name, value); - } - - [MethodImpl(MethodImplOptions.InternalCall)] - internal extern static string[] godot_icall_DynamicGodotObject_SetMemberList(IntPtr godotObject); - - [MethodImpl(MethodImplOptions.InternalCall)] - internal extern static bool godot_icall_DynamicGodotObject_InvokeMember(IntPtr godotObject, string name, object[] args, out object result); - - [MethodImpl(MethodImplOptions.InternalCall)] - internal extern static bool godot_icall_DynamicGodotObject_GetMember(IntPtr godotObject, string name, out object result); - - [MethodImpl(MethodImplOptions.InternalCall)] - internal extern static bool godot_icall_DynamicGodotObject_SetMember(IntPtr godotObject, string name, object value); - - #region We don't override these methods - - // Looks like this is not usable from C# - //public override bool TryCreateInstance(CreateInstanceBinder binder, object[] args, out object result); - - // Object members cannot be deleted - //public override bool TryDeleteIndex(DeleteIndexBinder binder, object[] indexes); - //public override bool TryDeleteMember(DeleteMemberBinder binder); - - // Invocation on the object itself, e.g.: obj(param) - //public override bool TryInvoke(InvokeBinder binder, object[] args, out object result); - - // No unnary operations to handle - //public override bool TryUnaryOperation(UnaryOperationBinder binder, out object result); - - #endregion - } -} |