The default can be used as a property is very bad design.

[Brian]

OH NO !

sample code:

```D
import std.stdio;

struct Config
{
     string test = "aaa";
     string test2 = "bbb";
}

Config config()
{
     Config conf;
     return conf;
}

class Test
{
     void func1()
     {
         string config;

         string testConfig = config().test;

         writeln(testConfig);
     }
}
```


build error:
```shell
osx:test zoujiaqing$ dmd config.d
config.d(22): Error: function expected before (), not config of 
type string
```