(* Title: HOL/Library/Code_Integer.thy
Author: Florian Haftmann, TU Muenchen
*)
header {* Pretty integer literals for code generation *}
theory Code_Integer
imports Main Code_Natural
begin
text {*
HOL numeral expressions are mapped to integer literals
in target languages, using predefined target language
operations for abstract integer operations.
*}
code_type int
(SML "IntInf.int")
(OCaml "Big'_int.big'_int")
(Haskell "Integer")
(Scala "BigInt")
(Eval "int")
code_instance int :: equal
(Haskell -)
setup {*
fold (Numeral.add_code @{const_name number_int_inst.number_of_int}
true Code_Printer.literal_numeral) ["SML", "OCaml", "Haskell", "Scala"]
*}
code_const "Int.Pls" and "Int.Min" and "Int.Bit0" and "Int.Bit1"
(SML "raise/ Fail/ \"Pls\""
and "raise/ Fail/ \"Min\""
and "!((_);/ raise/ Fail/ \"Bit0\")"
and "!((_);/ raise/ Fail/ \"Bit1\")")
(OCaml "failwith/ \"Pls\""
and "failwith/ \"Min\""
and "!((_);/ failwith/ \"Bit0\")"
and "!((_);/ failwith/ \"Bit1\")")
(Haskell "error/ \"Pls\""
and "error/ \"Min\""
and "error/ \"Bit0\""
and "error/ \"Bit1\"")
(Scala "!error(\"Pls\")"
and "!error(\"Min\")"
and "!error(\"Bit0\")"
and "!error(\"Bit1\")")
code_const Int.pred
(SML "IntInf.- ((_), 1)")
(OCaml "Big'_int.pred'_big'_int")
(Haskell "!(_/ -/ 1)")
(Scala "!(_ -/ 1)")
(Eval "!(_/ -/ 1)")
code_const Int.succ
(SML "IntInf.+ ((_), 1)")
(OCaml "Big'_int.succ'_big'_int")
(Haskell "!(_/ +/ 1)")
(Scala "!(_ +/ 1)")
(Eval "!(_/ +/ 1)")
code_const "op + \<Colon> int \<Rightarrow> int \<Rightarrow> int"
(SML "IntInf.+ ((_), (_))")
(OCaml "Big'_int.add'_big'_int")
(Haskell infixl 6 "+")
(Scala infixl 7 "+")
(Eval infixl 8 "+")
code_const "uminus \<Colon> int \<Rightarrow> int"
(SML "IntInf.~")
(OCaml "Big'_int.minus'_big'_int")
(Haskell "negate")
(Scala "!(- _)")
(Eval "~/ _")
code_const "op - \<Colon> int \<Rightarrow> int \<Rightarrow> int"
(SML "IntInf.- ((_), (_))")
(OCaml "Big'_int.sub'_big'_int")
(Haskell infixl 6 "-")
(Scala infixl 7 "-")
(Eval infixl 8 "-")
code_const "op * \<Colon> int \<Rightarrow> int \<Rightarrow> int"
(SML "IntInf.* ((_), (_))")
(OCaml "Big'_int.mult'_big'_int")
(Haskell infixl 7 "*")
(Scala infixl 8 "*")
(Eval infixl 9 "*")
code_const pdivmod
(SML "IntInf.divMod/ (IntInf.abs _,/ IntInf.abs _)")
(OCaml "Big'_int.quomod'_big'_int/ (Big'_int.abs'_big'_int _)/ (Big'_int.abs'_big'_int _)")
(Haskell "divMod/ (abs _)/ (abs _)")
(Scala "!((k: BigInt) => (l: BigInt) =>/ if (l == 0)/ (BigInt(0), k) else/ (k.abs '/% l.abs))")
(Eval "Integer.div'_mod/ (abs _)/ (abs _)")
code_const "HOL.equal \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
(SML "!((_ : IntInf.int) = _)")
(OCaml "Big'_int.eq'_big'_int")
(Haskell infix 4 "==")
(Scala infixl 5 "==")
(Eval infixl 6 "=")
code_const "op \<le> \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
(SML "IntInf.<= ((_), (_))")
(OCaml "Big'_int.le'_big'_int")
(Haskell infix 4 "<=")
(Scala infixl 4 "<=")
(Eval infixl 6 "<=")
code_const "op < \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
(SML "IntInf.< ((_), (_))")
(OCaml "Big'_int.lt'_big'_int")
(Haskell infix 4 "<")
(Scala infixl 4 "<")
(Eval infixl 6 "<")
code_const Code_Numeral.int_of
(SML "IntInf.fromInt")
(OCaml "_")
(Haskell "toInteger")
(Scala "!_.as'_BigInt")
(Eval "_")
text {* Evaluation *}
code_const "Code_Evaluation.term_of \<Colon> int \<Rightarrow> term"
(Eval "HOLogic.mk'_number/ HOLogic.intT")
end