private static void GetGeneralMemberBindings(object obj, Type sourceType, Type conversionType, ParameterExpression parExp, List <MemberBinding> bindings, ConvertMapper mapper)
{
var lazyMgr = obj as ILazyManager;
foreach (var property in conversionType.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
try
{
if (lazyMgr != null && !lazyMgr.IsValueCreated(property.Name))
{
continue;
}
Expression descExp = null;
//在映射器里查找转换表达式
if (mapper != null)
{
descExp = mapper.GetMapExpression(property);
if (descExp != null)
{
descExp = (ExpressionReplacer.Replace(descExp, parExp) as LambdaExpression).Body;
}
}
if (descExp == null)
{
var sourceProperty = sourceType.GetProperty(property.Name, BindingFlags.Public | BindingFlags.Instance);
if (sourceProperty == null || !sourceProperty.CanRead || !property.CanWrite)
{
continue;
}
descExp = Expression.MakeMemberAccess(parExp, sourceProperty);
if (property.PropertyType != sourceProperty.PropertyType)
{
descExp = Expression.Call(null, MthToType,
Expression.Convert(descExp, typeof(object)),
Expression.Constant(property.PropertyType),
Expression.Constant(null),
Expression.Constant(null, typeof(ConvertMapper)));
descExp = Expression.Convert(descExp, property.PropertyType);
}
}
bindings.Add(Expression.Bind(property, descExp));
}
catch
{
continue;
}
}
}
private static void GetGeneralMemberAssignments(object source, object target,
Type sourceType, Type targetType, ParameterExpression sourceParExp, ParameterExpression targetParExp,
List <BinaryExpression> assignments, ConvertMapper mapper)
{
foreach (var property in targetType.GetProperties(BindingFlags.Public | BindingFlags.Instance))
{
try
{
if (source is ILazyManager lazyMgr && !lazyMgr.IsValueCreated(property.Name))
{
continue;
}
Expression sourceExp = null;
//在映射器里查找转换表达式
if (mapper != null)
{
sourceExp = mapper.GetMapExpression(property);
if (sourceExp != null)
{
sourceExp = (ExpressionReplacer.Replace(sourceExp, sourceParExp) as LambdaExpression).Body;
}
}
if (sourceExp == null)
{
var sourceProperty = sourceType.GetProperty(property.Name, BindingFlags.Public | BindingFlags.Instance);
if (sourceProperty == null || !sourceProperty.CanRead || !property.CanWrite)
{
continue;
}
sourceExp = GetPropertyExpression(sourceParExp, target, property, sourceProperty);
}
var descExp = Expression.MakeMemberAccess(targetParExp, property);
assignments.Add(Expression.Assign(descExp, sourceExp));
}
catch
{
continue;
}
}
}
