some grouping of Isabelle symbols, based on X-Symbol grid in PG-3.7.1.1 and a proposal by Fabian Immler;
(* Title: HOL/MicroJava/J/SystemClasses.thy
Author: Gerwin Klein
Copyright 2002 Technische Universitaet Muenchen
*)
header {* \isaheader{System Classes} *}
theory SystemClasses imports Decl begin
text {*
This theory provides definitions for the @{text Object} class,
and the system exceptions.
*}
definition ObjectC :: "'c cdecl" where
[code_unfold]: "ObjectC \<equiv> (Object, (undefined,[],[]))"
definition NullPointerC :: "'c cdecl" where
[code_unfold]: "NullPointerC \<equiv> (Xcpt NullPointer, (Object,[],[]))"
definition ClassCastC :: "'c cdecl" where
[code_unfold]: "ClassCastC \<equiv> (Xcpt ClassCast, (Object,[],[]))"
definition OutOfMemoryC :: "'c cdecl" where
[code_unfold]: "OutOfMemoryC \<equiv> (Xcpt OutOfMemory, (Object,[],[]))"
definition SystemClasses :: "'c cdecl list" where
[code_unfold]: "SystemClasses \<equiv> [ObjectC, NullPointerC, ClassCastC, OutOfMemoryC]"
end