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
55 lines
1.6 KiB
Ruby
55 lines
1.6 KiB
Ruby
module Bosl
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Compiler.class_eval do
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def on_function expression
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#puts expression.inspect
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return_type , name , parameters, kids , receiver = *expression
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name = name.to_a.first
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args = parameters.to_a.collect do |p|
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raise "error, argument must be a identifier, not #{p}" unless p.type == :parameter
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Parfait::Variable.new( *p)
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end
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if receiver
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# compiler will always return slot. with known value or not
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r = receiver.first
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if( r.is_a? Parfait::Class )
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class_name = r.value.name
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else
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if( r != :self)
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raise "unimplemented case in function #{r}"
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else
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r = Virtual::Self.new()
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class_name = method.for_class.name
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end
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end
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else
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r = @clazz
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class_name = @clazz.name
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end
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raise "Already in method #{@method}" if @method
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@method = @clazz.get_instance_method( name )
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if(@method)
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puts "Warning, redefining method #{name}" unless name == :main
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#TODO check args / type compatibility
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@method.source.init @method
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else
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@method = Virtual::MethodSource.create_method(class_name, return_type, name , args )
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@method.for_class.add_instance_method @method
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end
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@method.source.receiver = r
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puts "compile method #{@method.name}"
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#frame = frame.new_frame
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kids.to_a.each do |ex|
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return_type = process(ex)
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raise return_type.inspect if return_type.is_a? Virtual::Instruction
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end
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@method.source.return_type = return_type
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@method = nil
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Virtual::Return.new(return_type)
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end
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end
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end
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