42 lines
1013 B
Ruby
42 lines
1013 B
Ruby
module Ast
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class ModuleExpression < Expression
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attr_reader :name ,:expressions
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def initialize name , expressions
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@name = name.to_sym
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@expressions = expressions
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end
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def attributes
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[:name , :expressions]
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end
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def inspect
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self.class.name + ".new(" + @name.inspect + " ," + @expressions.inspect + " )"
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end
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def to_s
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"module #{name}\n #{expressions}\nend\n"
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end
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end
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class ClassExpression < ModuleExpression
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def initialize name , derived , expressions
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super(name , expressions)
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@derived_from = derived
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end
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def attributes
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[:name , :derived_from , :expressions]
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end
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def inspect
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self.class.name + ".new(" + @name.inspect + " ," +
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@derived_from.inspect + ", " + @expressions.inspect + " )"
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end
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def derived_from
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@derived_from ? @derived_from : :Object
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end
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def to_s
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s = "class #{name} < #{derived_from}\n #{expressions}\nend\n"
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end
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end
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end
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