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(* Title: HOL/MicroJava/J/Type.thy
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ID: $Id$
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Author: David von Oheimb
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Copyright 1999 Technische Universitaet Muenchen
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Java types
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*)
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Type = JBasis +
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types cname (* class name *)
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vnam (* variable or field name *)
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mname (* method name *)
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arities cname, vnam, mname :: term
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datatype vname (* names for This pointer and local/field variables *)
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= This
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| VName vnam
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datatype prim_ty (* primitive type, cf. 4.2 *)
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= Void (* 'result type' of void methods *)
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| Boolean
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| Integer
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datatype ref_ty (* reference type, cf. 4.3 *)
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= NullT (* null type, cf. 4.1 *)
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| ClassT cname (* class type *)
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datatype ty (* any type, cf. 4.1 *)
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= PrimT prim_ty (* primitive type *)
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| RefT ref_ty (* reference type *)
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syntax
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NT :: " ty"
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Class :: "cname => ty"
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translations
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"NT" == "RefT NullT"
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"Class C" == "RefT (ClassT C)"
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end
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