public static Func <TTarget, TProperty> BuildGetter <TTarget, TProperty>(PropertyInfo property)
{
// TODO: Make sure the property belongs to TTarget
if (property is null)
{
throw new ArgumentNullException(nameof(property));
}
if (property.PropertyType != typeof(TProperty))
{
throw new InvalidOperationException();
}
var targetExpr = Expression.Parameter(typeof(TTarget));
var getterExpr = ExpressionHelpers.BuildGetterExpression(targetExpr, property);
return(Expression.Lambda <Func <TTarget, TProperty> >(getterExpr, targetExpr)
.Compile());
}
public static Func <TTarget, TField> BuildGetter <TTarget, TField>(FieldInfo field)
{
// TODO: Make sure the field belongs to TTarget
if (field is null)
{
throw new ArgumentNullException(nameof(field));
}
if (field.FieldType != typeof(TField))
{
throw new InvalidOperationException();
}
var targetExpr = Expression.Parameter(typeof(TTarget));
var getterExpr = ExpressionHelpers.BuildGetterExpression(targetExpr, field);
return(Expression.Lambda <Func <TTarget, TField> >(getterExpr, targetExpr)
.Compile());
}