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(* Title: HOL/Library/Code_Integer.thy
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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 Code_Integer
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imports Main Code_Natural
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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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(Scala "BigInt")
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(Eval "int")
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code_instance int :: equal
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(Haskell -)
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setup {*
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fold (Numeral.add_code @{const_name number_int_inst.number_of_int}
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true Code_Printer.literal_numeral) ["SML", "OCaml", "Haskell", "Scala"]
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*}
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code_const "Int.Pls" and "Int.Min" and "Int.Bit0" and "Int.Bit1"
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(SML "raise/ Fail/ \"Pls\""
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and "raise/ Fail/ \"Min\""
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and "!((_);/ raise/ Fail/ \"Bit0\")"
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and "!((_);/ raise/ Fail/ \"Bit1\")")
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(OCaml "failwith/ \"Pls\""
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and "failwith/ \"Min\""
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and "!((_);/ failwith/ \"Bit0\")"
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and "!((_);/ failwith/ \"Bit1\")")
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(Haskell "error/ \"Pls\""
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and "error/ \"Min\""
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and "error/ \"Bit0\""
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and "error/ \"Bit1\"")
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(Scala "!error(\"Pls\")"
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and "!error(\"Min\")"
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and "!error(\"Bit0\")"
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and "!error(\"Bit1\")")
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code_const Int.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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(Scala "!(_ -/ 1)")
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(Eval "!(_/ -/ 1)")
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code_const Int.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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(Scala "!(_ +/ 1)")
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(Eval "!(_/ +/ 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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(Scala infixl 7 "+")
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(Eval infixl 8 "+")
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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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(Scala "!(- _)")
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(Eval "~/ _")
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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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(Scala infixl 7 "-")
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(Eval infixl 8 "-")
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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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(Scala infixl 8 "*")
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(Eval infixl 9 "*")
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code_const pdivmod
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(SML "IntInf.divMod/ (IntInf.abs _,/ IntInf.abs _)")
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(OCaml "Big'_int.quomod'_big'_int/ (Big'_int.abs'_big'_int _)/ (Big'_int.abs'_big'_int _)")
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(Haskell "divMod/ (abs _)/ (abs _)")
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(Scala "!((k: BigInt) => (l: BigInt) =>/ if (l == 0)/ (BigInt(0), k) else/ (k.abs '/% l.abs))")
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(Eval "Integer.div'_mod/ (abs _)/ (abs _)")
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code_const "HOL.equal \<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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(Scala infixl 5 "==")
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(Eval infixl 6 "=")
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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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(Scala infixl 4 "<=")
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(Eval infixl 6 "<=")
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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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(Scala infixl 4 "<")
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(Eval infixl 6 "<")
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code_const Code_Numeral.int_of
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(SML "IntInf.fromInt")
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(OCaml "_")
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(Haskell "toInteger")
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(Scala "!_.as'_BigInt")
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(Eval "_")
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text {* Evaluation *}
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code_const "Code_Evaluation.term_of \<Colon> int \<Rightarrow> term"
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(Eval "HOLogic.mk'_number/ HOLogic.intT")
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end |