46 lines
1.3 KiB
Ruby
46 lines
1.3 KiB
Ruby
module Phisol
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Compiler.class_eval do
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def on_operator_value statement
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puts "operator #{statement.inspect}"
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operator , left_e , right_e = *statement
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left_slot = process(left_e)
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right_slot = process(right_e)
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puts "left #{left_slot}"
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puts "right #{right_slot}"
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tmp1 = use_reg
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tmp2 = use_reg
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get = Register.get_slot_to(statement , left_slot , tmp1 )
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get2 = Register.get_slot_to(statement , right_slot , tmp2 )
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puts "GET #{get}"
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puts "GET2 #{get2}"
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@method.source.add_code get
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@method.source.add_code get2
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@method.source.add_code Register::OperatorInstruction.new(statement,operator, tmp1,tmp2)
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release_reg tmp2
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release_reg tmp1
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Virtual::Return.new(:int )
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end
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def on_assignment statement
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puts statement.inspect
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name , value = *statement
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name = name.to_a.first
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v = process(value)
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index = @method.has_local( name )
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if(index)
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@method.source.add_code Virtual::Set.new(Virtual::FrameSlot.new(index, :int ) , v )
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else
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index = @method.has_arg( name )
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if(index)
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@method.source.add_code Virtual::Set.new(Virtual::ArgSlot.new(index , :int ) , v )
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else
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raise "must define variable #{name} before using it in #{@method.inspect}"
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end
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end
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end
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end
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end
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