37 lines
998 B
Ruby
37 lines
998 B
Ruby
module Mom
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class IfStatement < Statement
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attr_reader :condition , :if_true , :if_false
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attr_accessor :hoisted
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def initialize( cond , if_true , if_false = nil)
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@condition = cond
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@if_true = if_true
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@if_false = if_false
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raise if_true.class unless if_true.is_a? Statement
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end
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def flatten(options = {})
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true_label = Label.new( "true_label_#{object_id}")
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false_label = Label.new( "false_label_#{object_id}")
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merge_label = Label.new( "merge_label_#{object_id}")
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first = condition.flatten( true_label: true_label , false_label: false_label)
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if hoisted
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head = hoisted.flatten
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head.append first
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else
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head = first
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end
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head.append true_label
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head.append if_true.flatten( merge_label: merge_label)
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if( if_false)
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head.append false_label
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head.append if_false.flatten( merge_label: merge_label)
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end
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head.append merge_label
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head
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end
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end
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end
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