28 lines
1.0 KiB
Ruby
28 lines
1.0 KiB
Ruby
module Bosl
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Compiler.class_eval do
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# attr_reader :name
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# compiling name needs to check if it's a variable and if so resolve it
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# otherwise it's a method without args and a send is issued.
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# whichever way this goes the result is stored in the return slot (as all compiles)
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def on_name expression
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name = expression.to_a.first
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return Virtual::Self.new( Virtual::Reference.new(method.for_class)) if name == :self
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# either an argument, so it's stored in message
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ret = Virtual::Return.new :int
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if( index = method.has_arg(name))
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method.source.add_code Virtual::Set.new( Virtual::ArgSlot.new(index,:int ) , ret)
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else # or a local so it is in the frame
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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 ) , ret )
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else
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raise "must define variable #{name} before using it"
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end
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end
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return ret
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end
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end #module
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end
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