40 lines
1.5 KiB
Ruby
40 lines
1.5 KiB
Ruby
module Parfait
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# This represents the method at source code level (sis vool)
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#
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# Type objects are already created for args and locals, but the main attribute
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# is the source, which is a Vool::Statement
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#
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# Classes store VoolMethods, while Types store CallableMethod
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# A Type referes to a Class , but a Class (interface) is implemented by many types
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# as it changes during the course of it's life. Types do not change. Objects have
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# type, and so only indirectly a class.
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#
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class VoolMethod < Object
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attr_reader :name , :args_type , :frame_type , :source
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def initialize(name , args_type , frame_type , source )
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@name , @args_type , @frame_type , @source = name , args_type, frame_type , source
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raise "Name must be symbol" unless name.is_a?(Symbol)
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raise "args_type must be type" unless args_type.is_a?(Parfait::Type)
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raise "frame_type must be type" unless frame_type.is_a?(Parfait::Type)
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raise "source must be vool" unless source.is_a?(Vool::Statement)
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raise "Empty bod" if(source.is_a?(Vool::Statements) and source.empty?)
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end
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def create_callable_method( type )
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raise "create_method #{type.inspect} is not a Type" unless type.is_a? Parfait::Type
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type.create_method( @name , @args_type , @frame_type)
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end
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def compiler_for(self_type)
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callable_method = create_callable_method(self_type)
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compiler = Risc::MethodCompiler.new( callable_method )
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head = source.to_mom( compiler )
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compiler.add_mom(head)
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compiler
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end
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end
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end
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