static public Advisor Returning(this Advisor.IAfter @this, Action <ILGenerator> advise)
{
return(@this.Returning(new Action <MethodBuilder>(_Method =>
{
var _body = _Method.GetILGenerator();
advise(_body);
_body.Emit(OpCodes.Ret);
})));
}
static private Advisor Throwing(this Advisor.IAfter @this, Action <MethodBuilder> advise)
{
var _signature = @this.Generator.Method.GetParameters().Select(_Parameter => _Parameter.ParameterType).ToArray();
if (@this.Generator.Method.ReturnType() == Metadata.Void)
{
return(@this.Generator.Create((_Type, _Instance, _Arguments) =>
{
var _advice = _Type.DefineMethod("<Advice>", MethodAttributes.Static | MethodAttributes.Private, CallingConventions.Standard, Metadata.Void, @this.Generator.Method.IsStatic ? _signature : new Type[] { @this.Generator.Method.DeclaringType }.Concat(_signature).Concat(new Type[] { Metadata <Exception> .Type }).ToArray());
advise(_advice);
var _method = _Type.DefineMethod("IAdvice.Throw", MethodAttributes.Private | MethodAttributes.Virtual, CallingConventions.HasThis, Metadata.Void, new Type[] { Metadata <Exception> .Type.MakeByRefType() });
var _body = _method.GetILGenerator();
if (_Instance != null)
{
_body.Emit(OpCodes.Ldarg_0);
_body.Emit(OpCodes.Ldfld, _Instance);
}
foreach (var _argument in _Arguments)
{
_body.Emit(OpCodes.Ldarg_0);
_body.Emit(OpCodes.Ldfld, _argument);
}
_body.Emit(OpCodes.Ldarg_1);
_body.Emit(OpCodes.Call, _advice);
_body.Emit(OpCodes.Ret);
_Type.DefineMethodOverride(_method, Metadata <IAdvice> .Method(_IAdvice => _IAdvice.Throw(ref Metadata <Exception> .Value)));
}));
}
else
{
return(@this.Generator.Create((_Type, _Instance, _Arguments) =>
{
var _advice = _Type.DefineMethod("<Advice>", MethodAttributes.Static | MethodAttributes.Private, CallingConventions.Standard, Metadata.Void, @this.Generator.Method.IsStatic ? _signature : new Type[] { @this.Generator.Method.DeclaringType }.Concat(_signature).Concat(new Type[] { Metadata <Exception> .Type }).ToArray());
advise(_advice);
var _method = _Type.DefineMethod("IAdvice.Throw", MethodAttributes.Private | MethodAttributes.Virtual, CallingConventions.HasThis);
_method.SetReturnType(Metadata.Void);
_method.SetParameters(new Type[] { Metadata <Exception> .Type.MakeByRefType(), _method.DefineGenericParameters("T")[0].MakeByRefType() });
var _body = _method.GetILGenerator();
if (_Instance != null)
{
_body.Emit(OpCodes.Ldarg_0);
_body.Emit(OpCodes.Ldfld, _Instance);
}
foreach (var _argument in _Arguments)
{
_body.Emit(OpCodes.Ldarg_0);
_body.Emit(OpCodes.Ldfld, _argument);
}
_body.Emit(OpCodes.Ldarg_1);
_body.Emit(OpCodes.Call, _advice);
_body.Emit(OpCodes.Ret);
_Type.DefineMethodOverride(_method, Metadata <IAdvice> .Method(_IAdvice => _IAdvice.Throw(ref Metadata <Exception> .Value, ref Metadata <object> .Value)).GetGenericMethodDefinition());
}));
}
}
static public Advisor Returning(this Advisor.IAfter @this, Func <Advisor.Execution.Returning, Expression> advise)
{
var _signature = @this.Generator.Method.GetParameters().Select(_Parameter => Expression.Parameter(_Parameter.ParameterType));
return(@this.Returning(new Action <MethodBuilder>(_Method =>
{
if (@this.Generator.Method.IsStatic)
{
Expression.Lambda(advise(new Advisor.Execution.Returning(@this.Generator.Method, null, new Collection <Expression>(_signature))), _signature).CompileToMethod(_Method);
}
else
{
var _instance = Expression.Parameter(@this.Generator.Method.DeclaringType);
Expression.Lambda(advise(new Advisor.Execution.Returning(@this.Generator.Method, _instance, new Collection <Expression>(_signature))), new ParameterExpression[] { _instance }.Concat(_signature)).CompileToMethod(_Method);
}
})));
}
static public Advisor Returning(this Advisor.IAfter @this, Action advice)
{
return(@this.Returning(Expression.Call(Expression.Field(null, Aspect.Module.DefineField(advice)), Metadata <Action> .Method(_Action => _Action.Invoke()))));
}
static public Advisor Returning(this Advisor.IAfter @this, Expression advice)
{
return(@this.Returning(_Execution => advice));
}
static public Advisor.After.IReturning Returning(this Advisor.IAfter @this)
{
return(new Advisor.After.Returning(@this));
}
internal Returning(Advisor.IAfter after)
{
this.m_After = after;
}
