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module Lrama
class Grammar
class ParameterizingRules
class Builder
# Base class for parameterizing rules builder
class Base
attr_reader :build_token
def initialize(token, rule_counter, lhs_tag, user_code, precedence_sym, line)
@args = token.args
@token = @args.first
@rule_counter = rule_counter
@lhs_tag = lhs_tag
@user_code = user_code
@precedence_sym = precedence_sym
@line = line
@expected_argument_num = 1
@build_token = nil
end
def build
raise NotImplementedError
end
private
def validate_argument_number!
unless @args.count == @expected_argument_num
raise "Invalid number of arguments. expect: #{@expected_argument_num} actual: #{@args.count}"
end
end
end
end
end
end
end
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