private static void CreateMethod(AmObjectClassBuildingContext context, IAmBindingDescription bindingDesc, MethodInfo method)
{
var methodBuilder = context.TypeBuilder.DefineMethod(method.Name,
MethodAttributes.Public | MethodAttributes.Final | MethodAttributes.HideBySig |
MethodAttributes.NewSlot | MethodAttributes.Virtual);
methodBuilder.SetParameters(method.GetParameters().Select(x => x.ParameterType).ToArray());
methodBuilder.SetReturnType(method.ReturnType);
methodBuilder.SetImplementationFlags(MethodImplAttributes.Managed);
var il = new CilEmitterSugar(methodBuilder.GetILGenerator());
var field = context.Fields.GetOrAddBindingField(bindingDesc);
if (method.Name.StartsWith("get_"))
{
il.Ldarg(0);
il.Ldfld(field);
il.Call(bindingDesc.MakePropertyGetMethod(context.AmClass));
il.Ret();
}
else if (method.Name.StartsWith("set_"))
{
il.Ldarg(0);
il.Ldfld(field);
il.Ldarg(1);
il.Call(bindingDesc.MakePropertySetMethod(context.AmClass));
il.Ret();
}
else
{
throw new Exception($"Either getter or setter expected, but '{method.Name}' found.");
}
context.TypeBuilder.DefineMethodOverride(methodBuilder, method);
}
public bool TryCreateDescription(PropertyInfo property, out IAmBindingDescription description)
{
if (property.GetMethod != null && property.SetMethod != null)
{
description = new AmSingularBindingDescription(property);
return(true);
}
description = null;
return(false);
}
public bool TryCreateDescription(PropertyInfo property, out IAmBindingDescription description)
{
if (property.PropertyType.IsGenericType && property.PropertyType.GetGenericTypeDefinition() == typeof(IList <>) &&
property.GetMethod != null && property.SetMethod == null)
{
description = new AmListBindingDescription(property);
return(true);
}
description = null;
return(false);
}
private FieldBuilder CreateBindingField(IAmBindingDescription propertyDesc) =>
typeBuilder.DefineField("b" + propertyDesc.Property.Name, propertyDesc.MakeBindingType(amClass),
FieldAttributes.Private | FieldAttributes.InitOnly);
public FieldBuilder GetOrAddBindingField(IAmBindingDescription propertyDesc) => bindings.GetOrAdd(propertyDesc, CreateBindingField);
private static void CreateBindingMethods(AmObjectClassBuildingContext context, IAmBindingDescription bindingDesc)
{
CreateMethod(context, bindingDesc, bindingDesc.Property.GetMethod);
if (bindingDesc.Property.SetMethod != null)
{
CreateMethod(context, bindingDesc, bindingDesc.Property.SetMethod);
}
}
