26 lines
457 B
Ruby
26 lines
457 B
Ruby
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module Ruby
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# Base class for all statements in the tree. Derived classes correspond to known language
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# constructs
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#
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# Compilers or compiler passes are written by implementing methods.
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#
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class Statement
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def at_depth(depth , *strings)
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prefix = " " * 2 * depth
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strings.collect{|str| prefix + str}.join("\n")
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end
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end
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class Expression
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def normalize
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raise "should not be normalized #{self}"
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end
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end
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end
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