protected override Expression InjectCore(TA a, MethodCallExpression expr)
{
var result = expr.Arguments.Select(argument => InjectorFactory.GetInstance().GetInjector <TA, TB>(argument, ParameterExpression).Inject(a, argument)).ToList();
if (expr.Object is MemberExpression && ((expr.Object) as MemberExpression).Member.DeclaringType == typeof(TA))
{
if (expr.Method.Name == "GetValueOrDefault")
{
var f = Expression.Lambda(expr.Arguments[0]).Compile();
var defaultValue = f.DynamicInvoke();
var m = (expr.Object) as MemberExpression;
object val;
Type t;
if (m.Member is FieldInfo)
{
val = ((FieldInfo)m.Member).GetValue(a);
t = ((FieldInfo)m.Member).FieldType;
}
else
{
val = ((PropertyInfo)m.Member).GetValue(a);
t = ((PropertyInfo)m.Member).PropertyType;
}
if (Nullable.GetUnderlyingType(t) != null && val == null)
{
return(Expression.Constant(defaultValue));
}
}
var constant = MakeConstant(expr.Object, a);
return(expr.Update(constant, result));
}
if (ParameterExpression != null && expr.Object is MemberExpression && ((expr.Object) as MemberExpression).Member.DeclaringType == typeof(TB))
{
var parameter = MakeParameter(expr.Object);
return(expr.Update(parameter, result));
}
return(expr.Update(expr.Object, result));
}
protected override Expression InjectCore(TA a, UnaryExpression expr) => expr.Update(InjectorFactory.GetInstance()
.GetInjector <TA, TB>(expr.Operand, ParameterExpression)
.Inject(a, expr.Operand));
protected override Expression InjectCore(TA a, LambdaExpression expr) => Expression.Lambda(InjectorFactory.GetInstance()
.GetInjector <TA, TB>(expr.Body, ParameterExpression)
.Inject(a, expr.Body), expr.Parameters);
protected override Expression InjectCore(TA a, BinaryExpression expr) => expr.Update(
InjectorFactory.GetInstance().GetInjector <TA, TB>(expr.Left, ParameterExpression).Inject(a, expr.Left),
expr.Conversion,
InjectorFactory.GetInstance().GetInjector <TA, TB>(expr.Right, ParameterExpression).Inject(a, expr.Right)
);