64 lines
1.4 KiB
Ruby
64 lines
1.4 KiB
Ruby
module CodeRay
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module Encoders
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load :lint
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# = Debug Lint Encoder
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#
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# Debug encoder with additional checks for:
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#
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# - empty tokens
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# - incorrect nesting
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#
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# It will raise an InvalidTokenStream exception when any of the above occurs.
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#
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# See also: Encoders::Debug
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class DebugLint < Debug
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register_for :debug_lint
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def text_token text, kind
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raise Lint::EmptyToken, 'empty token for %p' % [kind] if text.empty?
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raise Lint::UnknownTokenKind, 'unknown token kind %p (text was %p)' % [kind, text] unless TokenKinds.has_key? kind
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super
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end
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def begin_group kind
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@opened << kind
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super
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end
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def end_group kind
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raise Lint::IncorrectTokenGroupNesting, 'We are inside %s, not %p (end_group)' % [@opened.reverse.map(&:inspect).join(' < '), kind] if @opened.last != kind
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@opened.pop
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super
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end
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def begin_line kind
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@opened << kind
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super
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end
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def end_line kind
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raise Lint::IncorrectTokenGroupNesting, 'We are inside %s, not %p (end_line)' % [@opened.reverse.map(&:inspect).join(' < '), kind] if @opened.last != kind
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@opened.pop
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super
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end
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protected
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def setup options
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super
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@opened = []
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end
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def finish options
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raise 'Some tokens still open at end of token stream: %p' % [@opened] unless @opened.empty?
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super
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end
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end
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end
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end
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