“这是一个存根，用于索引”在大多数方法中？

Question

我正在调查curses.rb宝石的curses，我发现这到处都是：

def attrset(attrs)
    #This is a stub, used for indexing
end
# bkgdset(ch)
#  
# Manipulate the background of the current window
# with character Integer +ch+
# 
# see also Curses.bkgdset
def bkgdset(ch)
    #This is a stub, used for indexing
end
# bkgd(ch)
#  
# Set the background of the current window
# and apply character Integer +ch+ to every character.
# 
# see also Curses.bkgd
def bkgd(ch)
    #This is a stub, used for indexing
end
# Returns an Interer (+ch+) for the character property in the current window.
def getbkgd()
    #This is a stub, used for indexing
end

我不明白存根部分。实际完成所有工作的代码在哪里？

Answer 1

您是否有机会使用RubyMine的“转到定义”（或者它在那里称之为什么）来查看它？

如果是这样，那么可能的原因是这些方法是用C实现的，IDE不能显示ruby代码，因为没有。但是它知道方法签名并且它生成那些假身体以帮助它的智能感知（方法名称完成和东西）。