ruby - 如何在 Ruby 中传递变量？

Question

继我的另一个问题得到了很好的解决之后 How to generate a file with the names of the methods in class?

现在我有另一个关于代码的问题:

basedir = "."
files =  Dir.new(basedir).entries
files.each do |file|
  tests = file.match(/(.+)_tests.rb/)
  puts tests if tests
end

#here i need to use "tests" variable again .. 

tests.each do |test|
  File.open(test).each_line do |line|
    match = line.match(/def (.+)/)
    puts match[1] if match
  end
end

给我错误:

  match_test_methods.rb:10: undefined local variable or method `tests' for main:Object (NameError)

我想，问题是“tests”变量是在 files.each do 方法中产生和埋藏的。我如何在全局范围内使用它？到目前为止没有任何效果......

谢谢。

Answer 1

您可以在迭代之前定义它:

tests = nil
basedir = "."
files =  Dir.new(basedir).entries
files.each do |file|
  tests = file.match(/(.+)_tests.rb/)
  puts tests if tests
end

# now tests will be available here