Class: MODL::Parser::Parsed::ParsedArray

Inherits:
MODLParserBaseListener show all
Defined in:
lib/modl/parser/parsed.rb

Overview

Class to represent a parsed grammar object

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from MODLParserBaseListener

#enterModl, #enterModl_array_conditional, #enterModl_array_conditional_return, #enterModl_array_item, #enterModl_array_value_item, #enterModl_condition, #enterModl_condition_group, #enterModl_condition_test, #enterModl_map, #enterModl_map_conditional, #enterModl_map_conditional_return, #enterModl_map_item, #enterModl_nb_array, #enterModl_operator, #enterModl_pair, #enterModl_primitive, #enterModl_structure, #enterModl_top_level_conditional, #enterModl_top_level_conditional_return, #enterModl_value, #enterModl_value_conditional, #enterModl_value_conditional_return, #enterModl_value_item, #enter_every_rule, #exitModl, #exitModl_array, #exitModl_array_conditional, #exitModl_array_conditional_return, #exitModl_array_item, #exitModl_array_value_item, #exitModl_condition, #exitModl_condition_group, #exitModl_condition_test, #exitModl_map, #exitModl_map_conditional, #exitModl_map_conditional_return, #exitModl_map_item, #exitModl_nb_array, #exitModl_operator, #exitModl_pair, #exitModl_primitive, #exitModl_structure, #exitModl_top_level_conditional, #exitModl_top_level_conditional_return, #exitModl_value, #exitModl_value_conditional, #exitModl_value_conditional_return, #exitModl_value_item, #exit_every_rule, #visit_error_node, #visit_terminal

Methods inherited from MODLParserListener

#enterModl, #enterModl_array_conditional, #enterModl_array_conditional_return, #enterModl_array_item, #enterModl_array_value_item, #enterModl_condition, #enterModl_condition_group, #enterModl_condition_test, #enterModl_map, #enterModl_map_conditional, #enterModl_map_conditional_return, #enterModl_map_item, #enterModl_nb_array, #enterModl_operator, #enterModl_pair, #enterModl_primitive, #enterModl_structure, #enterModl_top_level_conditional, #enterModl_top_level_conditional_return, #enterModl_value, #enterModl_value_conditional, #enterModl_value_conditional_return, #enterModl_value_item, #exitModl, #exitModl_array, #exitModl_array_conditional, #exitModl_array_conditional_return, #exitModl_array_item, #exitModl_array_value_item, #exitModl_condition, #exitModl_condition_group, #exitModl_condition_test, #exitModl_map, #exitModl_map_conditional, #exitModl_map_conditional_return, #exitModl_map_item, #exitModl_nb_array, #exitModl_operator, #exitModl_pair, #exitModl_primitive, #exitModl_structure, #exitModl_top_level_conditional, #exitModl_top_level_conditional_return, #exitModl_value, #exitModl_value_conditional, #exitModl_value_conditional_return, #exitModl_value_item

Constructor Details

#initialize(global) ⇒ ParsedArray

Returns a new instance of ParsedArray.



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# File 'lib/modl/parser/parsed.rb', line 1269

def initialize(global)
  @global = global
  @abstractArrayItems = []
end

Instance Attribute Details

#abstractArrayItems ⇒ Object

We now have a list of < array_item | nb_array >



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# File 'lib/modl/parser/parsed.rb', line 1267

def abstractArrayItems
  @abstractArrayItems
end

Instance Method Details

#enterModl_array(ctx) ⇒ Object 



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# File 'lib/modl/parser/parsed.rb', line 1295

def enterModl_array(ctx)
  # Create the new abstractArrayItems list first, sized to the total of array_item.size and nb_array.size
  i = 0
  previous = nil
  ctx_children = ctx.children
  ctx_children.each do |pt|
    if pt.is_a? MODLParser::Modl_array_itemContext
      array_item = ParsedArrayItem.new @global
      pt.enter_rule(array_item)
      @abstractArrayItems[i] = array_item
      i += 1
    elsif pt.is_a? MODLParser::Modl_nb_arrayContext
      nb_array = ParsedNbArray.new @global
      pt.enter_rule(nb_array)
      @abstractArrayItems[i] = nb_array
      i += 1
    elsif pt.is_a? Antlr4::Runtime::TerminalNode
      if !previous.nil? && previous.is_a?(Antlr4::Runtime::TerminalNode) && pt.is_a?(Antlr4::Runtime::TerminalNode)

        # If we get here then we have two terminal nodes in a row, so we need to output something unless # the terminal symbols are newlines
        #
        prev_symbol = previous.symbol.type
        current_symbol = pt.symbol.type

        if prev_symbol == MODLLexer::LSBRAC && current_symbol == MODLLexer::RSBRAC
          next # This allows empty arrays
        end

        if prev_symbol == MODLLexer::STRUCT_SEP && current_symbol == MODLLexer::STRUCT_SEP

          # Create something for the blank array item
          #
          # The problem is that we might not have any context to tell us what type we need to create
          # so this currently defaults to the nil
          #
          # TODO : Is there a way to know the type to create or is nil always acceptable?
          array_item = Parsed.handle_empty_array_item

          @abstractArrayItems[i] = array_item
          i += 1
        end
      end
    end
    previous = pt
  end
end

#extract_hash ⇒ Object 



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# File 'lib/modl/parser/parsed.rb', line 1285

def extract_hash
  result = []

  abstractArrayItems.each do |i|
    result << i.extract_hash
  end

  result
end

#find_property(key) ⇒ Object 



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# File 'lib/modl/parser/parsed.rb', line 1274

def find_property(key)
  if key.is_a? Integer
    return @abstractArrayItems[key]
  else
    @abstractArrayItems.each do |mi|
      return mi.arrayValueItem.pair if mi.arrayValueItem.pair && mi.arrayValueItem.pair.key == key
    end
    nil
  end
end