TypeInfo 的使用
package Demo
import std.reflect.*
public class Foo {
    public let item = 0
    public func f() {}
}
main() {
    let a = Foo()
    let ty: TypeInfo = TypeInfo.of(a)
    println(ty.name)
    println(ty.qualifiedName)
    println(ty.instanceFunctions.size)
}
运行结果:
Foo
Demo.Foo
1