1 (* Title: HOL/Library/Code_Integer.thy
2 Author: Florian Haftmann, TU Muenchen
5 header {* Pretty integer literals for code generation *}
8 imports Main Code_Natural
12 HOL numeral expressions are mapped to integer literals
13 in target languages, using predefined target language
14 operations for abstract integer operations.
19 (OCaml "Big'_int.big'_int")
24 code_instance int :: equal
28 fold (Numeral.add_code @{const_name number_int_inst.number_of_int}
29 true Code_Printer.literal_numeral) ["SML", "OCaml", "Haskell", "Scala"]
32 code_const "Int.Pls" and "Int.Min" and "Int.Bit0" and "Int.Bit1"
33 (SML "raise/ Fail/ \"Pls\""
34 and "raise/ Fail/ \"Min\""
35 and "!((_);/ raise/ Fail/ \"Bit0\")"
36 and "!((_);/ raise/ Fail/ \"Bit1\")")
37 (OCaml "failwith/ \"Pls\""
38 and "failwith/ \"Min\""
39 and "!((_);/ failwith/ \"Bit0\")"
40 and "!((_);/ failwith/ \"Bit1\")")
41 (Haskell "error/ \"Pls\""
44 and "error/ \"Bit1\"")
45 (Scala "!error(\"Pls\")"
47 and "!error(\"Bit0\")"
48 and "!error(\"Bit1\")")
51 (SML "IntInf.- ((_), 1)")
52 (OCaml "Big'_int.pred'_big'_int")
53 (Haskell "!(_/ -/ 1)")
58 (SML "IntInf.+ ((_), 1)")
59 (OCaml "Big'_int.succ'_big'_int")
60 (Haskell "!(_/ +/ 1)")
64 code_const "op + \<Colon> int \<Rightarrow> int \<Rightarrow> int"
65 (SML "IntInf.+ ((_), (_))")
66 (OCaml "Big'_int.add'_big'_int")
67 (Haskell infixl 6 "+")
71 code_const "uminus \<Colon> int \<Rightarrow> int"
73 (OCaml "Big'_int.minus'_big'_int")
78 code_const "op - \<Colon> int \<Rightarrow> int \<Rightarrow> int"
79 (SML "IntInf.- ((_), (_))")
80 (OCaml "Big'_int.sub'_big'_int")
81 (Haskell infixl 6 "-")
85 code_const "op * \<Colon> int \<Rightarrow> int \<Rightarrow> int"
86 (SML "IntInf.* ((_), (_))")
87 (OCaml "Big'_int.mult'_big'_int")
88 (Haskell infixl 7 "*")
93 (SML "IntInf.divMod/ (IntInf.abs _,/ IntInf.abs _)")
94 (OCaml "Big'_int.quomod'_big'_int/ (Big'_int.abs'_big'_int _)/ (Big'_int.abs'_big'_int _)")
95 (Haskell "divMod/ (abs _)/ (abs _)")
96 (Scala "!((k: BigInt) => (l: BigInt) =>/ if (l == 0)/ (BigInt(0), k) else/ (k.abs '/% l.abs))")
97 (Eval "Integer.div'_mod/ (abs _)/ (abs _)")
99 code_const "HOL.equal \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
100 (SML "!((_ : IntInf.int) = _)")
101 (OCaml "Big'_int.eq'_big'_int")
102 (Haskell infixl 4 "==")
103 (Scala infixl 5 "==")
106 code_const "op \<le> \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
107 (SML "IntInf.<= ((_), (_))")
108 (OCaml "Big'_int.le'_big'_int")
109 (Haskell infix 4 "<=")
110 (Scala infixl 4 "<=")
113 code_const "op < \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
114 (SML "IntInf.< ((_), (_))")
115 (OCaml "Big'_int.lt'_big'_int")
116 (Haskell infix 4 "<")
120 code_const Code_Numeral.int_of
121 (SML "IntInf.fromInt")
123 (Haskell "toInteger")
124 (Scala "!_.as'_BigInt")
127 text {* Evaluation *}
129 code_const "Code_Evaluation.term_of \<Colon> int \<Rightarrow> term"
130 (Eval "HOLogic.mk'_number/ HOLogic.intT")