f4a4ccb98e
- all code must be in functions (which must be in classes). — changes a fair few tests — also changes api, as method is not recursive, not passed around - all state in instance vars in compiler (no accessors) - class is another such variable, surely more coming all green again
29 lines
798 B
Ruby
29 lines
798 B
Ruby
module Bosl
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Compiler.class_eval do
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# operator attr_reader :operator, :left, :right
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def on_operator expression
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operator , left , right = *expression
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#raise "not quite there"
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Virtual::Return.new(:int)
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end
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def on_assign expression
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name , value = *expression
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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(:int,index ) , 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(:int,index ) , 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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