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jashkenas--coffeescript/lib/coffee_script/parse_error.rb

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Ruby

module CoffeeScript
# Racc will raise this Exception whenever a syntax error occurs. The main
# benefit over the Racc::ParseError is that the CoffeeScript::ParseError is
# line-number aware.
class ParseError < Racc::ParseError
def initialize(token_id, value, stack)
@token_id, @value, @stack = token_id, value, stack
end
def message
line = @value.respond_to?(:line) ? @value.line : "END"
line_part = "line #{line}:"
id_part = @token_id != @value.inspect ? ", unexpected #{@token_id.downcase}" : ""
val_part = ['INDENT', 'OUTDENT'].include?(@token_id) ? '' : " for '#{@value.to_s}'"
"#{line_part} syntax error#{val_part}#{id_part}"
end
alias_method :inspect, :message
end
end