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require 'lrama/lexer/token/char'
require 'lrama/lexer/token/ident'
require 'lrama/lexer/token/instantiate_rule'
require 'lrama/lexer/token/tag'
require 'lrama/lexer/token/user_code'
module Lrama
class Lexer
class Token
attr_reader :s_value, :location
attr_accessor :alias_name, :referred
def initialize(s_value:, alias_name: nil, location: nil)
s_value.freeze
@s_value = s_value
@alias_name = alias_name
@location = location
end
def to_s
"value: `#{s_value}`, location: #{location}"
end
def referred_by?(string)
[self.s_value, self.alias_name].compact.include?(string)
end
def ==(other)
self.class == other.class && self.s_value == other.s_value
end
def first_line
location.first_line
end
alias :line :first_line
def first_column
location.first_column
end
alias :column :first_column
def last_line
location.last_line
end
def last_column
location.last_column
end
def invalid_ref(ref, message)
location = self.location.partial_location(ref.first_column, ref.last_column)
raise location.generate_error_message(message)
end
end
end
end
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