ExpressionDelegates.Base 1.0.0

dotnet add package ExpressionDelegates.Base --version 1.0.0
NuGet\Install-Package ExpressionDelegates.Base -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="ExpressionDelegates.Base" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add ExpressionDelegates.Base --version 1.0.0
#r "nuget: ExpressionDelegates.Base, 1.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install ExpressionDelegates.Base as a Cake Addin
#addin nuget:?package=ExpressionDelegates.Base&version=1.0.0

// Install ExpressionDelegates.Base as a Cake Tool
#tool nuget:?package=ExpressionDelegates.Base&version=1.0.0

Usage

API is very simple:

ExpressionDelegates.Accessors.Find(string signature).Getter(object targetObject)
ExpressionDelegates.Accessors.Find(MemberInfo member).Setter(object targetObject, object value)

ExpressionDelegates.Methods.Find(string signature).Invoke(object targetObject, params object[] args)
ExpressionDelegates.Methods.Find(MethodInfo method).Invoke(object targetObject, params object[] args)

ExpressionDelegates.Constructors.Find(string signature ).Invoke(params object[] args)
ExpressionDelegates.Constructors.Find(Constructors constructor).Invoke(params object[] args)

Property/Field getter and setter delegates

Expression<Func<string, int>> expression = s => s.Length;
MemberInfo accessorInfo = ((MemberExpression)expression.Body).Member;

Accessor lengthAccessor = ExpressionDelegates.Accessors.Find(accessorInfo);
// or
lengthAccessor = ExpressionDelegates.Accessors.Find("System.String.Length");

var value = lengthAccessor.Get("17 letters string");
// value == 17

If property/field is read-only, Accessor.Set will be null.

If property is write-only, Accessor.Get will be null.

Method delegates

Expression<Func<string, char, bool>> expression = (s, c) => s.Contains(c);
MethodInfo methodInfo = ((MethodCallExpression)expression.Body).Method;

Method containsMethod = ExpressionDelegates.Methods.Find(methodInfo);
// or
containsMethod = ExpressionDelegates.Methods.Find("System.String.Contains(System.Char)");

var value = containsMethod.Invoke("Hello", 'e');
// value == true

Constructor delegates

Expression<Func<char, int, string>> expression = (c, i) => new string(c, i);
ConstructorInfo ctorInfo = ((NewExpression)expression.Body).Constructor;

Constructor stringCtor = ExpressionDelegates.Constructors.Find(ctorInfo);
// or
stringCtor = ExpressionDelegates.Constructors.Find("System.String.String(System.Char, System.Int32)");

var value = stringCtor.Invoke('c', 5);
// value == "ccccc"

Possibilities and Limitations

Parameters for the delegates, their count and type checking are up to you. InvalidCastException is thrown in case of using wrong parameters for a delegate signature. IndexOutOfRangeException is thrown for an unexpected parameter count.

  • No delegates for private or protected classes and members, only for internal and public

  • No delegates for methods or constructors with ref parameters

  • No delegates for anonymous types (not sure if needed)

  • Static members are supported

  • Generics are supported

  • Nested classes are supported

  • Dynamic properties/fields are supported

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
  • .NETStandard 2.0

    • No dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on ExpressionDelegates.Base:

Package Downloads
ExpressionDelegates.Generation

ExpressionDelegates is a tool which generates delegates to properties, fields, methods and constructors used in linq expression trees. The purpose of this library is to compile the most common and simplest operations in expression trees during the build to avoid their slow compilation at runtime or invoсation overhead after interpretation. If your project doesn't have linq expressions to generate delegates from and you just want to use the generated delegates from other assemblies, please install `ExpressionDelegates.Base` NuGet package to avoid any code generation attempts.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
1.0.0 676 11/12/2020