Class: Flor::Pro::PatObj

Inherits:
PatContainer show all
Defined in:
lib/flor/pcore/_pat_obj.rb

Constant Summary

Constants inherited from Flor::Procedure

Flor::Procedure::RVARS, Flor::Procedure::TRUE_ATTS

Instance Attribute Summary

Attributes inherited from Node

#message

Instance Method Summary collapse

Methods inherited from PatContainer

#execute, #execute_child

Methods inherited from Flor::Procedure

[], core?, #debug_msg, #debug_tree, #end, #flank, #heap, inherited, make, names, #prepare_on_receive_last, #trigger_on_error

Methods inherited from Node

#child_id, #cnodes, #cnodes_any?, #cnodes_empty?, #deref, #descendant_of?, #domain, #exid, #fei, #from, #h, #initialize, #lookup_tree, #lookup_value, #message_or_node_payload, #nid, #node_closed?, #node_ended?, #node_open?, #node_payload, #node_payload_ret, #node_status, #node_status_flavour, #on_error_parent, #parent, #payload, #payload_ret, #point, #reheap, #to_procedure_node, #tree

Constructor Details

This class inherits a constructor from Flor::Node

Instance Method Details

#pre_executeObject



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# File 'lib/flor/pcore/_pat_obj.rb', line 10

def pre_execute

  @node['atts'] = []

  t = tree

  if (
    i = t[1].index { |ct|
       ct[0] == '_att' &&
       ct[1].size == 1 &&
       ct[1][0][0, 2] == [ 'only', [] ] }
  ) then
    t[1][i] =
      [ '_att', [
        [ '_sqs', 'only', -1 ],
        [ '_boo', true, -1 ],
      ], *t[1][i][2..-1] ]
    @node['tree'] = [ t[0], t[1], *t[1][2..-1] ]
  end

  t = tree
  changed = false
  t[1].each_with_index do |ct, j|
    next if j.odd? || ct[0] != '_ref'
    ct[0] = '_rep'
    changed = true
  end
  @node['tree'] = t if changed

  super
end

#receive_firstObject



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# File 'lib/flor/pcore/_pat_obj.rb', line 42

def receive_first

  return wrap_no_match_reply unless val.is_a?(Hash)

  super
end

#receive_lastObject



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# File 'lib/flor/pcore/_pat_obj.rb', line 99

def receive_last

  ks = @node['keys']
  return wrap_no_match_reply if ks && val.keys.sort != ks.sort

  payload['_pat_binding'] = @node['binding']
  payload.delete('_pat_val')

  super
end

#receive_last_attObject



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# File 'lib/flor/pcore/_pat_obj.rb', line 49

def receive_last_att

  rewrite_keys

  @node['key'] = nil
  @node['keys'] = [] if att('only')

  super
end

#receive_non_attObject



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# File 'lib/flor/pcore/_pat_obj.rb', line 59

def receive_non_att

  key = @node['key']
  ret = payload['ret']

  unless key
    return wrap_no_match_reply unless Dense.has_key?(val, Array(ret))
    @node['key'] = ret
    @node['keys'] << ret if @node['keys']
    return super
  end

  ct = child_type(@fcid)

  if ct == :pattern

    if b = payload.delete('_pat_binding')
      @node['binding'].merge!(b)
    else
      return wrap_no_match_reply
    end

  elsif ct.is_a?(String)

    @node['binding'][ct] = val[@node['key']] if ct != '_'

  elsif ct.is_a?(Array)

    @node['binding'][ct[0]] = val[@node['key']] if ct[0].length > 0

  elsif Dense.get(val, key) != ret

    return wrap_no_match_reply
  end

  @node['key'] = nil

  super
end