CommandLine.CastExtensions Class Reference

Static Public Member Functions
static bool	CanCast< T > (this Type baseType)
static bool	CanCast< T > (this object obj)
static T	Cast< T > (this object obj)

Static Private Member Functions
static bool	CanImplicitCast< T > (this Type baseType)
static bool	CanImplicitCast< T > (this object obj)
static bool	CanExplicitCast< T > (this Type baseType)
static bool	CanExplicitCast< T > (this object obj)
static bool	CanCast< T > (this Type baseType, string castMethodName)
static T	ImplicitCast< T > (this object obj)
static T	ExplicitCast< T > (this object obj)
static T	Cast< T > (this object obj, string castMethodName)

Static Private Attributes
const string	ImplicitCastMethodName = "op_Implicit"
const string	ExplicitCastMethodName = "op_Explicit"

Detailed Description

Definition at line 7 of file CastExtensions.cs.

Member Function Documentation

CanCast< T >() [1/3]

static bool CommandLine.CastExtensions.CanCast< T > ( this object  obj )

static

Definition at line 17 of file CastExtensions.cs.

        {
            Type objType = obj.GetType();
 
            return objType.CanCast<T>();
        }

CanCast< T >() [2/3]

static bool CommandLine.CastExtensions.CanCast< T > ( this Type  baseType )

static

Definition at line 12 of file CastExtensions.cs.

        {
            return baseType.CanImplicitCast<T>() || baseType.CanExplicitCast<T>();
        }

CanCast< T >() [3/3]

static bool CommandLine.CastExtensions.CanCast< T > ( this Type  baseType, string  castMethodName  )

staticprivate

Definition at line 70 of file CastExtensions.cs.

        {
            Type targetType = typeof(T);
 
            return baseType.GetMethods(BindingFlags.Public | BindingFlags.Static)
                           .Where(mi => mi.Name == castMethodName && mi.ReturnType == targetType)
                           .Any(mi =>
                                {
                                    ParameterInfo pi = mi.GetParameters()
                                                         .FirstOrDefault();
 
                                    return pi != null && pi.ParameterType == baseType;
                                }
                               );
        }

CanExplicitCast< T >() [1/2]

static bool CommandLine.CastExtensions.CanExplicitCast< T > ( this object  obj )

staticprivate

Definition at line 63 of file CastExtensions.cs.

        {
            Type baseType = obj.GetType();
 
            return baseType.CanExplicitCast<T>();
        }

CanExplicitCast< T >() [2/2]

static bool CommandLine.CastExtensions.CanExplicitCast< T > ( this Type  baseType )

staticprivate

Definition at line 58 of file CastExtensions.cs.

        {
            return baseType.CanCast<T>(ExplicitCastMethodName);
        }

CanImplicitCast< T >() [1/2]

static bool CommandLine.CastExtensions.CanImplicitCast< T > ( this object  obj )

staticprivate

Definition at line 51 of file CastExtensions.cs.

        {
            Type baseType = obj.GetType();
 
            return baseType.CanImplicitCast<T>();
        }

CanImplicitCast< T >() [2/2]

static bool CommandLine.CastExtensions.CanImplicitCast< T > ( this Type  baseType )

staticprivate

Definition at line 46 of file CastExtensions.cs.

        {
            return baseType.CanCast<T>(ImplicitCastMethodName);
        }

Cast< T >() [1/2]

static T CommandLine.CastExtensions.Cast< T > ( this object  obj )

static

Definition at line 24 of file CastExtensions.cs.

        {
            try
            {
                return (T)obj;
            }
            catch (InvalidCastException)
            {
                if (obj.CanImplicitCast<T>())
                {
                    return obj.ImplicitCast<T>();
                }
 
                if (obj.CanExplicitCast<T>())
                {
                    return obj.ExplicitCast<T>();
                }
 
                throw;
            }
        }

Cast< T >() [2/2]

static T CommandLine.CastExtensions.Cast< T > ( this object  obj, string  castMethodName  )

staticprivate

Definition at line 96 of file CastExtensions.cs.

        {
            Type objType = obj.GetType();
 
            MethodInfo conversionMethod = objType.GetMethods(BindingFlags.Public | BindingFlags.Static)
                                                 .Where(mi => mi.Name == castMethodName && mi.ReturnType == typeof(T))
                                                 .SingleOrDefault(mi =>
                                                                  {
                                                                      ParameterInfo pi = mi.GetParameters()
                                                                          .FirstOrDefault();
 
                                                                      return pi != null && pi.ParameterType == objType;
                                                                  }
                                                                 );
 
            if (conversionMethod != null)
            {
                return (T)conversionMethod.Invoke(null,
                                                  new[] { obj }
                                                 );
            }
 
            throw new InvalidCastException($"No method to cast {objType.FullName} to {typeof(T).FullName}");
        }

ExplicitCast< T >()

static T CommandLine.CastExtensions.ExplicitCast< T > ( this object  obj )

staticprivate

Definition at line 91 of file CastExtensions.cs.

        {
            return obj.Cast<T>(ExplicitCastMethodName);
        }

ImplicitCast< T >()

static T CommandLine.CastExtensions.ImplicitCast< T > ( this object  obj )

staticprivate

Definition at line 86 of file CastExtensions.cs.

        {
            return obj.Cast<T>(ImplicitCastMethodName);
        }

Member Data Documentation

ExplicitCastMethodName

const string CommandLine.CastExtensions.ExplicitCastMethodName = "op_Explicit"

staticprivate

Definition at line 10 of file CastExtensions.cs.

ImplicitCastMethodName

const string CommandLine.CastExtensions.ImplicitCastMethodName = "op_Implicit"

staticprivate

Definition at line 9 of file CastExtensions.cs.

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The documentation for this class was generated from the following file:

• deps/commandlineparser/src/CommandLine/CastExtensions.cs