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Contents
# frozen_string_literal: true
require 'set'
module Tapioca
# Registers a TracePoint immediately upon load to track points at which
# classes and modules are opened for definition. This is used to track
# correspondence between classes/modules and files, as this information isn't
# available in the ruby runtime without extra accounting.
module ConstantLocator
@class_files = {}
NAME = Module.instance_method(:name)
private_constant :NAME
# Immediately activated upon load. Observes class/module definition.
TracePoint.trace(:class) do |tp|
unless tp.self.singleton_class?
key = NAME.bind(tp.self).call
@class_files[key] ||= Set.new
@class_files[key] << tp.path
end
end
# Returns the files in which this class or module was opened. Doesn't know
# about situations where the class was opened prior to +require+ing,
# or where metaprogramming was used via +eval+, etc.
def files_for(klass)
name = String === klass ? klass : NAME.bind(klass).call
files = @class_files[name]
files || Set.new
end
module_function :files_for
end
end
Version data entries
14 entries across 14 versions & 1 rubygems