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(* Title: HOL/Library/Pretty_Int.thy
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ID: $Id$
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22767
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Author: Florian Haftmann, TU Muenchen
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*)
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header {* Pretty integer literals for code generation *}
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theory Pretty_Int
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imports IntArith
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begin
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text {*
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HOL numeral expressions are mapped to integer literals
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in target languages, using predefined target language
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operations for abstract integer operations.
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*}
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code_type int
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(SML "IntInf.int")
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(OCaml "Big'_int.big'_int")
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(Haskell "Integer")
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22949
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code_instance int :: eq
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(Haskell -)
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22767
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setup {*
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fold (fn target => CodegenSerializer.add_pretty_numeral target
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(@{const_name number_of}, @{typ "int \<Rightarrow> int"})
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@{const_name Numeral.B0} @{const_name Numeral.B1}
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@{const_name Numeral.Pls} @{const_name Numeral.Min}
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@{const_name Numeral.Bit}
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) ["SML", "OCaml", "Haskell"]
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*}
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code_const "Numeral.Pls" and "Numeral.Min" and "Numeral.Bit"
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(SML "raise/ Fail/ \"Pls\""
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and "raise/ Fail/ \"Min\""
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and "!((_);/ (_);/ raise/ Fail/ \"Bit\")")
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(OCaml "failwith/ \"Pls\""
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and "failwith/ \"Min\""
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and "!((_);/ (_);/ failwith/ \"Bit\")")
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(Haskell "error/ \"Pls\""
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and "error/ \"Min\""
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and "error/ \"Bit\"")
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code_const Numeral.pred
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(SML "IntInf.- ((_), 1)")
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(OCaml "Big'_int.pred'_big'_int")
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(Haskell "!(_/ -/ 1)")
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code_const Numeral.succ
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(SML "IntInf.+ ((_), 1)")
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(OCaml "Big'_int.succ'_big'_int")
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(Haskell "!(_/ +/ 1)")
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code_const "op + \<Colon> int \<Rightarrow> int \<Rightarrow> int"
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(SML "IntInf.+ ((_), (_))")
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(OCaml "Big'_int.add'_big'_int")
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(Haskell infixl 6 "+")
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code_const "uminus \<Colon> int \<Rightarrow> int"
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(SML "IntInf.~")
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(OCaml "Big'_int.minus'_big'_int")
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(Haskell "negate")
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code_const "op - \<Colon> int \<Rightarrow> int \<Rightarrow> int"
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(SML "IntInf.- ((_), (_))")
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(OCaml "Big'_int.sub'_big'_int")
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(Haskell infixl 6 "-")
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code_const "op * \<Colon> int \<Rightarrow> int \<Rightarrow> int"
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(SML "IntInf.* ((_), (_))")
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(OCaml "Big'_int.mult'_big'_int")
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(Haskell infixl 7 "*")
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code_const "op = \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
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(SML "!((_ : IntInf.int) = _)")
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(OCaml "Big'_int.eq'_big'_int")
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(Haskell infixl 4 "==")
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code_const "op \<le> \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
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(SML "IntInf.<= ((_), (_))")
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(OCaml "Big'_int.le'_big'_int")
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(Haskell infix 4 "<=")
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code_const "op < \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
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(SML "IntInf.< ((_), (_))")
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(OCaml "Big'_int.lt'_big'_int")
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(Haskell infix 4 "<")
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code_reserved SML IntInf
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code_reserved OCaml Big_int
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end |