public static ConstructorInvocation EmitConstructorInvocationDelegate(this ConstructorInfo ci)
{
var dynMeth = CreateDynamicMethod(
"__SI_IL_ctor__" + ci.DeclaringType.Name,
ci.DeclaringType,
typeof(object),
new Type[] { typeof(object) });
var IL = new IL(dynMeth.GetILGenerator());
var ciParameters = ci.GetParameters();
IL
.newobj(ci);
// todo: parameters handling
IL
.box_if_value_type(ci.DeclaringType)
.ret();
return (ConstructorInvocation)dynMeth.CreateDelegate(typeof(ConstructorInvocation));
}
public static PropertyGetter EmitGetPropertyValueDelegate(this PropertyInfo pi)
{
var dynMeth = CreateDynamicMethod(
"__SI_IL_get__" + pi.Name,
pi.DeclaringType,
typeof(object),
new Type[] { typeof(object) });
var IL = new IL(dynMeth.GetILGenerator());
bool isStatic = pi.IsStatic();
if (!isStatic)
{
IL
.ldarg_0 // load arg-0 (this)
.castclass(pi.DeclaringType); // (PropertyOwnerType)this
}
var getMethod = pi.GetGetMethod(nonPublic: true);
IL
.call_or_callvirt(getMethod)
.box_if_value_type(pi.PropertyType)
.ret();
return (PropertyGetter)dynMeth.CreateDelegate(typeof(PropertyGetter));
}
public static ConstructorInvocation EmitConstructorInvocationDelegate(this Type type)
{
var dynMeth = CreateDynamicMethod(
"__SI_IL_ctor__" + type.Name,
type,
typeof(object),
new Type[] { typeof(object) });
var IL = new IL(dynMeth.GetILGenerator());
if (type.IsValueType)
{
IL
.DeclareLocal(type, pinned: false); // DeclaringType x
IL
.ldloca_s(0)
.initobj(type)
.ldloc_0
.end();
IL
.box_if_value_type(type)
.ret();
}
return (ConstructorInvocation)dynMeth.CreateDelegate(typeof(ConstructorInvocation));
}
public static PropertySetter EmitSetPropertyValueDelegate(this PropertyInfo pi)
{
var dynMeth = CreateDynamicMethod(
"__SI_IL_set__" + pi.Name,
pi.DeclaringType,
null,
new Type[] { typeof(object), typeof(object) });
var IL = new IL(dynMeth.GetILGenerator());
IL
.ldarg_0
.castclass(pi.DeclaringType)
.ldarg_1
.end();
if (pi.PropertyType.IsClass)
{
IL
.castclass(pi.PropertyType);
}
else
IL
.cast_object_to(pi.PropertyType);
var setMethod = pi.GetSetMethod(nonPublic: true);
IL
.call_or_callvirt(setMethod)
.ret();
//dynMeth.DefineParameter(1, ParameterAttributes.In, "property_owner_instance");
//dynMeth.DefineParameter(2, ParameterAttributes.In, "property_value");
return (PropertySetter)dynMeth.CreateDelegate(typeof(PropertySetter));
}
