private static bool IsSystemXamlNonPublic(ref ThreeValuedBool methodIsSystemXamlNonPublic, MethodInfo method)
{
if (methodIsSystemXamlNonPublic == ThreeValuedBool.NotSet)
{
bool flag = SafeReflectionInvoker.IsSystemXamlNonPublic(method);
methodIsSystemXamlNonPublic = flag ? ThreeValuedBool.True : ThreeValuedBool.False;
}
return (methodIsSystemXamlNonPublic == ThreeValuedBool.True);
}
private static bool IsSystemXamlNonPublic(ref ThreeValuedBool methodIsSystemXamlNonPublic, MethodInfo method)
{
if (methodIsSystemXamlNonPublic == ThreeValuedBool.NotSet)
{
bool flag = SafeReflectionInvoker.IsSystemXamlNonPublic(method);
methodIsSystemXamlNonPublic = flag ? ThreeValuedBool.True : ThreeValuedBool.False;
}
return(methodIsSystemXamlNonPublic == ThreeValuedBool.True);
}
// returns true if a delegate is available, false if not
private static bool EnsureConstructorDelegate(XamlTypeInvoker type)
{
if (type._constructorDelegate != null)
{
return(true);
}
if (!type.IsPublic)
{
return(false);
}
if (s_securityFailureWithCtorDelegate == ThreeValuedBool.NotSet)
{
s_securityFailureWithCtorDelegate =
#if PARTIALTRUST
!AppDomain.CurrentDomain.PermissionSet.IsUnrestricted() ? ThreeValuedBool.True : ThreeValuedBool.False;
#else
ThreeValuedBool.False;
#endif
}
if (s_securityFailureWithCtorDelegate == ThreeValuedBool.True)
{
return(false);
}
try
{
Type underlyingType = type._xamlType.UnderlyingType.UnderlyingSystemType;
// Look up public ctors only, for equivalence with Activator.CreateInstance
ConstructorInfo tConstInfo = underlyingType.GetConstructor(Type.EmptyTypes);
if (tConstInfo == null)
{
// Throwing MissingMethodException for equivalence with Activator.CreateInstance
throw new MissingMethodException(SR.Get(SRID.NoDefaultConstructor, underlyingType.FullName));
}
if ((tConstInfo.IsSecurityCritical && !tConstInfo.IsSecuritySafeCritical) ||
(tConstInfo.Attributes & MethodAttributes.HasSecurity) == MethodAttributes.HasSecurity ||
(underlyingType.Attributes & TypeAttributes.HasSecurity) == TypeAttributes.HasSecurity)
{
// We don't want to bypass security checks for a critical or demanding ctor,
// so just treat it as if it were non-public
type._isPublic = ThreeValuedBool.False;
return(false);
}
IntPtr constPtr = tConstInfo.MethodHandle.GetFunctionPointer();
// This requires Reflection Permission
Action <object> ctorDelegate = ctorDelegate =
(Action <object>)s_actionCtor.Invoke(new object[] { null, constPtr });
type._constructorDelegate = ctorDelegate;
return(true);
}
catch (SecurityException)
{
s_securityFailureWithCtorDelegate = ThreeValuedBool.True;
return(false);
}
}
private static bool EnsureConstructorDelegate(XamlTypeInvoker type)
{
if (type._constructorDelegate != null)
{
return(true);
}
if (!type.IsPublic)
{
return(false);
}
if (s_securityFailureWithCtorDelegate == ThreeValuedBool.NotSet)
{
s_securityFailureWithCtorDelegate = !AppDomain.CurrentDomain.PermissionSet.IsUnrestricted() ? ThreeValuedBool.True : ThreeValuedBool.False;
}
if (s_securityFailureWithCtorDelegate == ThreeValuedBool.True)
{
return(false);
}
try
{
Type underlyingSystemType = type._xamlType.UnderlyingType.UnderlyingSystemType;
ConstructorInfo constructor = underlyingSystemType.GetConstructor(Type.EmptyTypes);
if (constructor == null)
{
throw new MissingMethodException(System.Xaml.SR.Get("NoDefaultConstructor", new object[] { underlyingSystemType.FullName }));
}
if ((constructor.IsSecurityCritical && !constructor.IsSecuritySafeCritical) || (((constructor.Attributes & MethodAttributes.HasSecurity) == MethodAttributes.HasSecurity) || ((underlyingSystemType.Attributes & TypeAttributes.HasSecurity) == TypeAttributes.HasSecurity)))
{
type._isPublic = ThreeValuedBool.False;
return(false);
}
IntPtr functionPointer = constructor.MethodHandle.GetFunctionPointer();
object[] parameters = new object[2];
parameters[1] = functionPointer;
type._constructorDelegate = (Action <object>)s_actionCtor.Invoke(parameters);
return(true);
}
catch (SecurityException)
{
s_securityFailureWithCtorDelegate = ThreeValuedBool.True;
return(false);
}
}
private static bool EnsureConstructorDelegate(XamlTypeInvoker type)
{
if (type._constructorDelegate != null)
{
return true;
}
if (!type.IsPublic)
{
return false;
}
if (s_securityFailureWithCtorDelegate == ThreeValuedBool.NotSet)
{
s_securityFailureWithCtorDelegate = !AppDomain.CurrentDomain.PermissionSet.IsUnrestricted() ? ThreeValuedBool.True : ThreeValuedBool.False;
}
if (s_securityFailureWithCtorDelegate == ThreeValuedBool.True)
{
return false;
}
try
{
Type underlyingSystemType = type._xamlType.UnderlyingType.UnderlyingSystemType;
ConstructorInfo constructor = underlyingSystemType.GetConstructor(Type.EmptyTypes);
if (constructor == null)
{
throw new MissingMethodException(System.Xaml.SR.Get("NoDefaultConstructor", new object[] { underlyingSystemType.FullName }));
}
if ((constructor.IsSecurityCritical && !constructor.IsSecuritySafeCritical) || (((constructor.Attributes & MethodAttributes.HasSecurity) == MethodAttributes.HasSecurity) || ((underlyingSystemType.Attributes & TypeAttributes.HasSecurity) == TypeAttributes.HasSecurity)))
{
type._isPublic = ThreeValuedBool.False;
return false;
}
IntPtr functionPointer = constructor.MethodHandle.GetFunctionPointer();
object[] parameters = new object[2];
parameters[1] = functionPointer;
type._constructorDelegate = (Action<object>) s_actionCtor.Invoke(parameters);
return true;
}
catch (SecurityException)
{
s_securityFailureWithCtorDelegate = ThreeValuedBool.True;
return false;
}
}
