Torsten Rüger
c213cf874b
So that vool layer never has complex conditions or returns Start with while, next if, return and assign
24 lines
983 B
Ruby
24 lines
983 B
Ruby
module Ruby
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module Normalizer
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# Normalize ruby to vool by "flattening" structure
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#
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# This is a common issue for return, if and while , which all need to operate on the
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# last value. In ruby the last value is always implicit, in vool not.
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#
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# A "normalized" structure is first of all not recursive, a list not a tree,
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# The last expression of the list may be one of three things
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# - a constant (unlikely, unless code is returning /testing a constant)
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# - any variable (same)
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# - a simple call (most common, but see call "normalisation" in SendStatement)
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#
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# We return the last expression, the one that is returned or tested on, seperately
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#
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def normalized_vool( condition )
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vool_condition = condition.to_vool
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return vool_condition unless( vool_condition.is_a?(Vool::Statements) )
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return vool_condition.first if( vool_condition.single?)
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return [vool_condition.pop , vool_condition ]
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end
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end
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end
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