Struct ValueFunc<R>
Represents a pointer to parameterless method with return type.
Namespace: DotNext
Assembly: DotNext.dll
Syntax
public struct ValueFunc<R> : ICallable<Func<R>>, ICallable, IEquatable<ValueFunc<R>>, ISupplier<R>
Type Parameters
Name | Description |
---|---|
R | The type of the return value of the method that this pointer encapsulates. |
Remarks
This method pointer is intended to call managed methods only.
Constructors
| Improve this Doc View SourceValueFunc(Func<R>, Boolean)
Initializes a new pointer based on extracted pointer from the delegate.
Declaration
public ValueFunc(Func<R> func, bool wrap = false)
Parameters
Type | Name | Description |
---|---|---|
DotNext.Func<R> | func | The delegate representing method. |
Boolean | wrap | true to wrap |
Remarks
You can use this constructor to create value delegate once and cache it using static readonly
field
for subsequent calls.
ValueFunc(IntPtr)
Initializes a new delegate using pointer to the static managed method.
Declaration
public ValueFunc(IntPtr methodPtr)
Parameters
Type | Name | Description |
---|---|---|
IntPtr | methodPtr | The pointer to the static managed method. |
ValueFunc(MethodInfo)
Initializes a new pointer to the method.
Declaration
public ValueFunc(MethodInfo method)
Parameters
Type | Name | Description |
---|---|---|
MethodInfo | method | The method to convert into pointer. |
Remarks
This constructor causes heap allocations because Reflection is needed to check compatibility of method's signature with the delegate type.
Properties
| Improve this Doc View SourceActivator
Returns activator for type R
in the form of typed method pointer.
Declaration
public static ValueFunc<R> Activator { get; }
Property Value
Type | Description |
---|---|
ValueFunc<R> |
Remarks
Actual type R
should be a value type or have public parameterless constructor.
DefaultValueProvider
Obtains pointer to the method that returns null if R
is reference type or initialized value type if R
is value type.
Declaration
public static ValueFunc<R> DefaultValueProvider { get; }
Property Value
Type | Description |
---|---|
ValueFunc<R> |
IsEmpty
Indicates that this delegate doesn't refer to any method.
Declaration
public bool IsEmpty { get; }
Property Value
Type | Description |
---|---|
Boolean |
Target
Gets the object on which the current pointer invokes the method.
Declaration
public object Target { get; }
Property Value
Type | Description |
---|---|
Object |
Methods
| Improve this Doc View SourceEquals(ValueFunc<R>)
Determines whether this object points to the same method as other object.
Declaration
public bool Equals(ValueFunc<R> other)
Parameters
Type | Name | Description |
---|---|---|
ValueFunc<R> | other | The pointer to compare. |
Returns
Type | Description |
---|---|
Boolean | true if both pointers represent the same method; otherwise, false. |
Equals(Object)
Determines whether this object points to the same method as other object.
Declaration
public override bool Equals(object other)
Parameters
Type | Name | Description |
---|---|---|
Object | other | The object implementing ICallable<D> to compare. |
Returns
Type | Description |
---|---|
Boolean | true if both pointers represent the same method; otherwise, false. |
GetHashCode()
Computes hash code of this pointer.
Declaration
public override int GetHashCode()
Returns
Type | Description |
---|---|
Int32 | The hash code of this pointer. |
Invoke()
Invokes method by pointer.
Declaration
public R Invoke()
Returns
Type | Description |
---|---|
R | The result of method invocation. |
ToDelegate()
Converts this pointer into
Declaration
public Func<R> ToDelegate()
Returns
Type | Description |
---|---|
DotNext.Func<R> | The delegate created from this method pointer; or null if this pointer is zero. |
ToString()
Obtains pointer value in HEX format.
Declaration
public override string ToString()
Returns
Type | Description |
---|---|
String | The address represented by pointer. |
Operators
| Improve this Doc View SourceEquality(ValueFunc<R>, ValueFunc<R>)
Determines whether the pointers represent the same method.
Declaration
public static bool operator ==(in ValueFunc<R> first, in ValueFunc<R> second)
Parameters
Type | Name | Description |
---|---|---|
ValueFunc<R> | first | The first pointer to compare. |
ValueFunc<R> | second | The second pointer to compare. |
Returns
Type | Description |
---|---|
Boolean | true if both pointers represent the same method; otherwise, false. |
Explicit(ValueFunc<R> to Func<R>)
Converts this pointer into
Declaration
public static explicit operator Func<R>(in ValueFunc<R> pointer)
Parameters
Type | Name | Description |
---|---|---|
ValueFunc<R> | pointer | The pointer to convert. |
Returns
Type | Description |
---|---|
DotNext.Func<R> | The delegate created from this method pointer. |
Inequality(ValueFunc<R>, ValueFunc<R>)
Determines whether the pointers represent different methods.
Declaration
public static bool operator !=(in ValueFunc<R> first, in ValueFunc<R> second)
Parameters
Type | Name | Description |
---|---|---|
ValueFunc<R> | first | The first pointer to compare. |
ValueFunc<R> | second | The second pointer to compare. |
Returns
Type | Description |
---|---|
Boolean | true if both pointers represent different methods; otherwise, false. |
Explicit Interface Implementations
| Improve this Doc View SourceICallable.DynamicInvoke(Object[])
Declaration
object ICallable.DynamicInvoke(params object[] args)
Parameters
Type | Name | Description |
---|---|---|
Object[] | args |
Returns
Type | Description |
---|---|
Object |