Reworking if statement
Using 2 phase approach Flattening tbd
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@ -10,19 +10,19 @@ module Vool
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end
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def to_mom( method )
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merge = Mom::Noop.new(:merge)
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if_true = add_jump(@if_true.to_mom( method ) , merge)
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if_false = add_jump(@if_false.to_mom( method ) , merge)
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cond = hoist_condition( method )
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check = Mom::TruthCheck.new( cond.pop , if_true , if_false , merge)
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[ *cond , check , if_true , if_false , merge ]
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if_true = @if_true.to_mom( method )
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if_false = @if_false.to_mom( method )
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condition , hoisted = hoist_condition( method )
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check = Mom::IfStatement.new( Mom::TruthCheck.new(condition) , if_true , if_false )
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check.hoisted = hoisted.to_mom(method) if hoisted
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check
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end
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def hoist_condition( method )
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return [@condition] if @condition.is_a?(Vool::Named)
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local = method.create_tmp
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assign = LocalAssignment.new( local , @condition).to_mom(method)
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[assign , Vool::LocalVariable.new(local)]
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assign = LocalAssignment.new( local , @condition)
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[Vool::LocalVariable.new(local) , assign]
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end
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def collect(arr)
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@ -44,11 +44,5 @@ module Vool
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@if_true != nil
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end
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private
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def add_jump( block , merge)
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block = [block] unless block.is_a?(Array)
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block << Mom::Jump.new(merge)
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block
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end
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end
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end
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