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