Torsten Rüger
d1f8733623
Simple is really the descriptive name for the layer Sure, it is "virtual" but that is not as important as the fact that it is simple (or simplified) Also objct (based really) is better, since orientated implies it is a little like that, but only orientated, not really it. Sol only has objects, nothing else Just cause i was renaming anyway
39 lines
1.1 KiB
Ruby
39 lines
1.1 KiB
Ruby
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module Sol
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class WhileStatement < Statement
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attr_reader :condition , :body , :hoisted
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def initialize( condition , body , hoisted = nil)
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@hoisted = hoisted
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@condition = condition
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@body = body
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end
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def to_slot( compiler )
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merge_label = SlotMachine::Label.new(self, "merge_label_#{object_id.to_s(16)}")
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cond_label = SlotMachine::Label.new(self, "cond_label_#{object_id.to_s(16)}")
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codes = cond_label
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codes << @hoisted.to_slot(compiler) if @hoisted
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codes << @condition.to_slot(compiler) if @condition.is_a?(SendStatement)
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codes << SlotMachine::TruthCheck.new(condition.to_slot_definition(compiler) , merge_label)
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codes << @body.to_slot(compiler)
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codes << SlotMachine::Jump.new(cond_label)
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codes << merge_label
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end
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def each(&block)
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block.call(self)
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@condition.each(&block)
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@hoisted.each(&block) if @hoisted
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@body.each(&block)
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end
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def to_s(depth = 0)
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lines =[ "while (#{@condition})" , @body.to_s(1) , "end"]
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lines.unshift( @hoisted.to_s) if @hoisted
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at_depth(depth , *lines )
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end
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end
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end
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