120 lines
2.6 KiB
Ruby
120 lines
2.6 KiB
Ruby
module Vool
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#Marker class for different constants
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class Constant < Expression
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#gobble it up
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def each(&block)
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end
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end
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# An integer at the vool level
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class IntegerConstant < Constant
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attr_reader :value
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def initialize(value)
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@value = value
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end
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def slot_definition(_)
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return Mom::SlotDefinition.new(Mom::IntegerConstant.new(@value) , [])
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end
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def ct_type
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Parfait.object_space.get_type_by_class_name(:Integer)
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end
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def to_s
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value.to_s
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end
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def each(&block)
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end
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end
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# An float at the vool level
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class FloatConstant < Constant
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attr_reader :value
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def initialize(value)
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@value = value
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end
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def ct_type
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true
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end
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def to_s
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value.to_s
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end
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end
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# True at the vool level
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class TrueConstant < Constant
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def ct_type
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Parfait.object_space.get_type_by_class_name(:True)
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end
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def slot_definition(_)
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return Mom::SlotDefinition.new(Parfait.object_space.true_object , [])
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end
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def to_s(depth = 0)
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"true"
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end
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end
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# False at the vool level
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class FalseConstant < Constant
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def ct_type
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Parfait.object_space.get_type_by_class_name(:False)
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end
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def slot_definition(_)
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return Mom::SlotDefinition.new(Parfait.object_space.false_object , [])
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end
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def to_s(depth = 0)
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"false"
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end
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end
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# Nil at the vool level
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class NilConstant < Constant
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def ct_type
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Parfait.object_space.get_type_by_class_name(:Nil)
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end
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def slot_definition(_)
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return Mom::SlotDefinition.new(Parfait.object_space.nil_object , [])
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end
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def to_s(depth = 0)
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"nil"
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end
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end
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# Self at the vool level
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class SelfExpression < Expression
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attr_reader :my_type
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def initialize(type = nil)
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@my_type = type
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end
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def slot_definition(compiler)
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@my_type = compiler.receiver_type
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Mom::SlotDefinition.new(:message , [:receiver])
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end
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def ct_type
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@my_type
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end
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def to_s(depth = 0)
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"self"
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end
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end
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class SuperExpression < Statement
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def to_s(depth = 0)
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"super"
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end
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end
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class StringConstant < Constant
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attr_reader :value
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def initialize(value)
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@value = value
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end
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def slot_definition(_)
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return Mom::SlotDefinition.new(Mom::StringConstant.new(@value),[])
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end
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def ct_type
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Parfait.object_space.get_type_by_class_name(:Word)
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end
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def to_s(depth = 0)
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"'#{@value}'"
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end
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end
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class SymbolConstant < StringConstant
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def ct_type
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Parfait.object_space.get_type_by_class_name(:Word)
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end
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end
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end
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