Skip to content

Instantly share code, notes, and snippets.

@mrange
Last active Aug 14, 2022
Embed
What would you like to do?
namespace CsDI
{
partial record DI
{
IY? _singletonOf_IY;
IZ? _singletonOf_IZ;
public void Get(out IX v)
{
v = new X(this);
}
public void Get(out IY v)
{
_singletonOf_IY ??= new Y(this);
v = _singletonOf_IY;
}
public void Get(out IZ v)
{
_singletonOf_IZ ??= new Z(this);
v = _singletonOf_IZ;
}
}
}
<#
var dependencies = new []
{
Transient("IX", "X")
, Singleton("IY", "Y")
, Singleton("IZ", "Z")
};
#>
namespace CsDI
{
partial record DI
{
<# foreach(var dependency in dependencies) { #>
<# if (!dependency.Transient) { #>
<#=dependency.InterfaceName#>? _singletonOf_<#=dependency.InterfaceName#>;
<# } #>
<# } #>
<# foreach(var dependency in dependencies) { #>
public void Get(out <#=dependency.InterfaceName#> v)
{
<# if (!dependency.Transient) { #>
_singletonOf_<#=dependency.InterfaceName#> ??= new <#=dependency.ClassName#>(this);
v = _singletonOf_<#=dependency.InterfaceName#>;
<# } else { #>
v = new <#=dependency.ClassName#>(this);
<# } #>
}
<# } #>
}
}
<#+
(string InterfaceName, string ClassName, bool Transient) Transient(string inm, string cnm)
{
return (inm ?? "<NULL>", cnm ?? "<NULL>", true);
}
(string InterfaceName, string ClassName, bool Transient) Singleton(string inm, string cnm)
{
return (inm ?? "<NULL>", cnm ?? "<NULL>", false);
}
#>
using CsDI;
var di = new DI();
di.Get(out IX x);
Console.WriteLine(x.Message());
namespace CsDI
{
interface IZ
{
string Message();
}
interface IY
{
string Message();
}
interface IX
{
string Message();
}
class Z : IZ
{
public Z(DI di)
{
}
public string Message()
{
return $"Z";
}
}
class Y : IY
{
IZ _z;
public Y(DI di)
{
di.Get(out _z);
}
public string Message()
{
return $"Y: _z:({_z.Message()})";
}
}
class X : IX
{
IY _y;
IZ _z;
public X(DI di)
{
di.Get(out _y);
di.Get(out _z);
}
public string Message()
{
return $"X: _y:({_y.Message()}), _z:({_z.Message()})";
}
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment