46 lines
1.4 KiB
Ruby
46 lines
1.4 KiB
Ruby
module Ruby
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# A CallStatement is the abstraction of Send and Yield. The two are really
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# much more similar than different.
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#
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# A CallStatement has a name, receiver and arguments
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#
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# Using the "vool_brother" we can create the right Vool class for it.
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# Arguments in vool must be simple, so any complex expressions get
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# hoisted and assigned to temporary variables.
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#
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class CallStatement < Statement
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attr_reader :name , :receiver , :arguments
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def initialize(name , receiver , arguments )
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@name , @receiver , @arguments = name , receiver , arguments
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@arguments ||= []
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end
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def to_vool
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statements = Vool::Statements.new([])
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arguments = []
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@arguments.each_with_index do |arg , index |
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normalize_arg(arg , arguments , statements)
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end
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if statements.empty?
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return vool_brother.new(@name, @receiver.to_vool , arguments)
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else
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statements << vool_brother.new(@name, @receiver.to_vool , arguments)
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return statements
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end
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end
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def normalize_arg(arg , arguments , statements)
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if arg.is_a?(Constant) and !arg.is_a?(CallStatement)
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arguments << arg.to_vool
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return
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end
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assign = Vool::LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg.to_vool)
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statements << assign
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arguments << Vool::LocalVariable.new(assign.name)
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end
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end
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end
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