What is this pattern called?

Question

Private someSub()
   If someBoolean = True Then Exit Sub

   ' do some great work because someBoolean is False
End Sub

我知道有一个名字.想法是检查一些东西,如果它不是你想要的,那么你就停止了代码处理.我以为它被称为"逃脱模式",但谷歌并没有确认这个名字.

Answer 1

保护条款:

http://c2.com/cgi/wiki?GuardClause