class BELParser::Expression::Filter

Filter will enumerate {BELParser::Parsers::AST::Node AST nodes} that make up BEL expressions. It selects the relevant nodes from an {BELParser::Parsers::AST::Node AST node} enumerator.

Constants

TYPES

Represents BEL expression node types.

Public Class Methods

new(ast_enum) click to toggle source
# File lib/bel_parser/expression/filter.rb, line 18
def initialize(ast_enum)
  @ast_filter = BELParser::ASTFilter.new(ast_enum, *TYPES)
end

Public Instance Methods

each(&block) click to toggle source
# File lib/bel_parser/expression/filter.rb, line 22
def each(&block)
  if block_given?
    @ast_filter.each(&block)
  else
    enum_for(:each)
  end
end