|
public FallbackDeleteMember ( |
||
| target | The target of the dynamic delete member operation. | |
| Результат | ||
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
if (IsOverridden("TryDeleteMember"))
{
return(CallMethodNoResult("TryDeleteMember", binder, NoArgs, (e) => binder.FallbackDeleteMember(this, e)));
}
return(base.BindDeleteMember(binder));
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
Fallback fallback = null;
if (!this.IsOverridden("TryDeleteMember"))
{
return(base.BindDeleteMember(binder));
}
if (fallback == null)
{
fallback = e => binder.FallbackDeleteMember(this, e);
}
return(this.CallMethodNoResult("TryDeleteMember", binder, NoArgs, fallback));
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
ContractUtils.RequiresNotNull(binder, nameof(binder));
int index = Value.Class.GetValueIndex(binder.Name, binder.IgnoreCase, Value);
Expression tryDelete = Expression.Call(
typeof(RuntimeOps).GetMethod("ExpandoTryDeleteValue"),
GetLimitedSelf(),
Expression.Constant(Value.Class, typeof(object)),
Expression.Constant(index),
Expression.Constant(binder.Name),
Expression.Constant(binder.IgnoreCase)
);
DynamicMetaObject fallback = binder.FallbackDeleteMember(this);
DynamicMetaObject target = new DynamicMetaObject(
Expression.IfThen(Expression.Not(tryDelete), fallback.Expression),
fallback.Restrictions
);
return(AddDynamicTestAndDefer(binder, Value.Class, null, target));
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
ArgumentNullException.ThrowIfNull(binder);
int index = Value.Class.GetValueIndex(binder.Name, binder.IgnoreCase, Value);
Expression tryDelete = Expression.Call(
s_expandoTryDeleteValue,
GetLimitedSelf(),
Expression.Constant(Value.Class, typeof(object)),
AstUtils.Constant(index),
Expression.Constant(binder.Name),
AstUtils.Constant(binder.IgnoreCase)
);
DynamicMetaObject fallback = binder.FallbackDeleteMember(this);
DynamicMetaObject target = new DynamicMetaObject(
Expression.IfThen(Expression.Not(tryDelete), fallback.Expression),
fallback.Restrictions
);
return(AddDynamicTestAndDefer(binder, Value.Class, null, target));
}
/// <summary>
/// Performs the binding of the dynamic delete member operation.
/// </summary>
/// <param name="binder">An instance of the <see cref="DeleteMemberBinder"/> that represents the details of the dynamic operation.</param>
/// <returns>The new <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public virtual DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
ContractUtils.RequiresNotNull(binder, "binder");
return(binder.FallbackDeleteMember(this));
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder) {
if (IsOverridden("TryDeleteMember")) {
return CallMethodNoResult("TryDeleteMember", binder, NoArgs, (e) => binder.FallbackDeleteMember(this, e));
}
return base.BindDeleteMember(binder);
}
/// <summary>
/// Performs the binding of the dynamic delete member operation.
/// </summary>
/// <param name="binder">An instance of the <see cref="DeleteMemberBinder"/> that represents the details of the dynamic operation.</param>
/// <returns>The new <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public virtual DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder) {
ContractUtils.RequiresNotNull(binder, "binder");
return binder.FallbackDeleteMember(this);
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder) {
ContractUtils.RequiresNotNull(binder, "binder");
string methodName = binder.IgnoreCase ? "ExpandoTryDeleteValueIgnoreCase" : "ExpandoTryDeleteValue";
int index = Value.Class.GetValueIndex(binder.Name, binder.IgnoreCase, Value);
Expression tryDelete = Expression.Call(
typeof(RuntimeOps).GetMethod(methodName),
GetLimitedSelf(),
Expression.Constant(Value.Class),
Expression.Constant(index)
);
DynamicMetaObject fallback = binder.FallbackDeleteMember(this);
DynamicMetaObject target = new DynamicMetaObject(
Expression.Condition(
Expression.IsFalse(tryDelete),
Helpers.Convert(fallback.Expression, typeof(object)), //if fail to delete, fall back
Helpers.Convert(Expression.Constant(true), typeof(object))
),
fallback.Restrictions
);
return AddDynamicTestAndDefer(
binder,
new DynamicMetaObject[] { this },
Value.Class,
null,
target
);
}
/// <summary>
/// Performs the binding of the dynamic delete member operation.
/// </summary>
/// <param name="binder">An instance of the <see cref="DeleteMemberBinder"/> that represents the details of the dynamic operation.</param>
/// <returns>The new <see cref="DynamicMetaObject"/> representing the result of the binding.</returns>
public virtual DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
ArgumentNullException.ThrowIfNull(binder);
return(binder.FallbackDeleteMember(this));
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
return new DynamicMetaObject(
Expression.Condition(
Expression.Invoke(
Expression.Constant(_deleteMember),
Expression,
Expression.Constant(binder.Name)
),
Expression.Default(binder.ReturnType),
binder.FallbackDeleteMember(this).Expression
),
GetRestrictions()
);
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder)
{
Fallback fallback = null;
if (!this.IsOverridden("TryDeleteMember"))
{
return base.BindDeleteMember(binder);
}
if (fallback == null)
{
fallback = e => binder.FallbackDeleteMember(this, e);
}
return this.CallMethodNoResult("TryDeleteMember", binder, NoArgs, fallback);
}
public override DynamicMetaObject BindDeleteMember(DeleteMemberBinder binder) {
return new DynamicMetaObject(
Expression.Condition(
Expression.Invoke(
Expression.Constant(new Func<object, SymbolId, bool>(AttributesAdapter.TryDeleteMember)),
Expression,
Expression.Constant(SymbolTable.StringToId(binder.Name))
),
Expression.Default(binder.ReturnType),
binder.FallbackDeleteMember(this).Expression
),
GetRestrictions()
);
}
public override DynamicMetaObject BindDeleteMember( DeleteMemberBinder binder )
{
return binder.FallbackDeleteMember( _baseMetaObject,
AddTypeRestrictions( _metaObject.BindDeleteMember( binder ) ) );
}
