55 lines
978 B
Ruby
55 lines
978 B
Ruby
module Mutant
|
|
# Abstract matcher to find ASTs to mutate
|
|
class Matcher
|
|
include Enumerable, Abstract, Immutable
|
|
extend DescendantsTracker
|
|
|
|
# Enumerate subjects
|
|
#
|
|
# @api private
|
|
#
|
|
# @return [undefined]
|
|
#
|
|
abstract_method :each
|
|
|
|
# Return identification
|
|
#
|
|
# @return [String
|
|
#
|
|
# @api private
|
|
#
|
|
abstract_method :identification
|
|
|
|
# Return matcher
|
|
#
|
|
# @param [String] input
|
|
#
|
|
# @return [nil]
|
|
# returns nil as default implementation
|
|
#
|
|
# @api private
|
|
#
|
|
def self.parse(input)
|
|
nil
|
|
end
|
|
|
|
# Return match from string
|
|
#
|
|
# @param [String] input
|
|
#
|
|
# @return [Matcher]
|
|
# returns matcher input if successful
|
|
#
|
|
# @return [nil]
|
|
# returns nil otherwise
|
|
#
|
|
def self.from_string(input)
|
|
descendants.each do |descendant|
|
|
matcher = descendant.parse(input)
|
|
return matcher if matcher
|
|
end
|
|
|
|
nil
|
|
end
|
|
end
|
|
end
|