Class: Contrast::Agent::Assess::Policy::Propagator::MatchData

Inherits:
Base
  • Object
show all
Defined in:
lib/contrast/agent/assess/policy/propagator/match_data.rb

Overview

Propagation that results in all the tags of the source being applied to the target exactly as is. The target’s preexisting tags are unaffected beyond any merging of overlapping tags.

Class Method Summary collapse

Methods inherited from Base

find_source, propagate, tracked_value?

Class Method Details

.captures_tagger(propagation_node, preshift, ret, _block) ⇒ Object

Captures is a method that returns an array of MatchData objects.

propagation action required by this method.

Parameters:

Returns:

  • (Object) —

    the return value of the method.



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# File 'lib/contrast/agent/assess/policy/propagator/match_data.rb', line 54

def captures_tagger propagation_node, preshift, ret, _block
  return unless ret

  idx = 0
  while idx < ret.length
    return_value = ret[idx]
    index = idx
    idx += 1
    next unless return_value

    targetted_index = index + 1
    square_bracket_single(targetted_index, preshift, return_value, propagation_node)
  end
  ret
end

.square_bracket_tagger(propagation_node, preshift, ret, _block) ⇒ Object

This patch method is used to track through the MatchData#[] and MatchData#match methods, since the last was introduced after Ruby 3.1.0, but shares similar functionality, except it does not support ranges.

propagation action required by this method.

Parameters:

Returns:

  • (Object) —

    the return value of the method.



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# File 'lib/contrast/agent/assess/policy/propagator/match_data.rb', line 25

def square_bracket_tagger propagation_node, preshift, ret, _block
  case ret
  when Array
    idx = 0
    while idx < ret.length
      return_value = ret[idx]
      index = idx
      idx += 1
      next unless return_value

      square_bracket_single(target_matchdata_index(preshift, index), preshift, return_value,
                            propagation_node)
    end
  when String
    target_matchdata_index = preshift.args[0]
    square_bracket_single(target_matchdata_index, preshift, ret, propagation_node)
  end

  ret
end

.to_a_tagger(propagation_node, preshift, ret, _block) ⇒ Object

propagation action required by this method.

Parameters:

Returns:

  • (Object) —

    the return value of the method.



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# File 'lib/contrast/agent/assess/policy/propagator/match_data.rb', line 76

def to_a_tagger propagation_node, preshift, ret, _block
  idx = 0
  while idx < ret.length
    return_value = ret[idx]
    index = idx
    idx += 1
    next unless return_value

    square_bracket_single(index, preshift, return_value, propagation_node)
  end
  ret
end

.values_at_tagger(propagation_node, preshift, ret, _block) ⇒ Object

propagation action required by this method.

Parameters:

Returns:

  • (Object) —

    the return value of the method.



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# File 'lib/contrast/agent/assess/policy/propagator/match_data.rb', line 95

def values_at_tagger propagation_node, preshift, ret, _block
  idx = 0
  while idx < ret.length
    return_value = ret[idx]
    return_index = idx
    idx += 1
    next unless return_value

    original_group_arg_index = preshift.args[return_index]
    square_bracket_single(original_group_arg_index, preshift, return_value, propagation_node)
  end
  ret
end