38 lines
1.2 KiB
Ruby
38 lines
1.2 KiB
Ruby
module Vm
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# name and args , return
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class CallSite < Value
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def initialize(name , value , args , function )
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@name = name
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@value = value
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@args = args
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@function = function
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raise "oh #{name} " unless value
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end
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attr_reader :function , :args , :name , :value
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def load_args into
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if value.is_a?(IntegerConstant) or value.is_a?(ObjectConstant)
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function.receiver.load into , value
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else
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raise "meta #{name} " if value.is_a? Boot::MetaClass
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function.receiver.move( into, value ) if value.register_symbol != function.receiver.register_symbol
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end
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raise "function call '#{name}' has #{args.length} arguments, but function has #{function.args.length}" if args.length != function.args.length
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args.each_with_index do |arg , index|
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if arg.is_a?(IntegerConstant) or arg.is_a?(StringConstant)
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function.args[index].load into , arg
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else
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function.args[index].move( into, arg ) if arg.register_symbol != function.args[index].register_symbol
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end
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end
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end
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def do_call into
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RegisterMachine.instance.function_call into , self
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end
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end
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end
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