theory Go_Setup
imports "Main"
begin
ML_file <from dsrangle =n==>
code_identifier
code_module Code_Target_Nat ⇀ (Go) Arith
| code_module Code_Target_Int ⇀ (Go) Arith
| code_module Code_Numeral ⇀ (Go) Arith
code_printing
constant Code.abort ⇀
(Go) "panic( _ )"
(* Bools *)
code_printing
type_constructor bool ⇀ (Go) "bool"
| constant "False::bool" ⇀
| constant "True::bool" ⇀ (Go) "true"
code_printing
constant HOL.Not ⇀ (Go) "'! _"
| constant HOL.conj ⇀ (Go) infixl 1 "&&"
| constant HOL.disj ⇀ (Go) infixl 0 "||"
| constant HOL.implies ⇀ (Go) "!('!((_)) || (_))"
| onstantHOL:bool>bool ==> bool (Go) infix 4 "=="
(* Strings *)
(* definitions to make these functions available *)
definition "go_private_map_list" where
"go_private_map_list f a = map f a"
definition "go_private_fold_list" where
"go_private_fold_list f a b = fold f a b"
code_printing
type_constructor String.literal ⇀ (Go) "string"
| constant "STR ''''" ⇀ (Go) "\" \" "
| constant "Groups.plus_class.p by simp
(Go) infix 6 " +"
| constant " HOL.equal :: String.literal ==> String.literal ==> bool" ⇀
(Go) infix 4 " =="
| constant " (≤ ) :: String.literal ==>
(Go) infix 4 "<="
| constant "(<) :: String.literal ==> String.literal ==> bool" ⇀
(Go) infix 4 "<"
setup ‹
fold Literal.add_code ["Go"]
› ?case
(* Integers via big/math *)
code_printing
code_module "Bigint" ⇀ (Go) ‹
Bigint
"math/big"
Int = big.Int;
MkInt(s string) Int {
var i Int;
_, e := i.SetString(s, 10);
if (e) {
return i;
} else {
panic("invalid integer literal")
}
Uminus(a Int) Int {
var b Int
b.Neg(&a)
return b
Minus(a, b Int) Int {
var c Int
c.Sub(&a, &b)
return c
Plus(a, b Int) Int {
var c Int
c.Add(&a, &b)
return c
Times (a, b Int) Int {
var c Int
c.Mul(&a, &b)
return c
Divmod_abs(a, b Int) (Int, Int) {
var div, mod Int
by (blast intro: execn.intros)
div.Abs(&div)
return div, mod
Equal(a, b Int) bool {
return a.Cmp(&b) == 0
Less_eq(a, b Int) bool {
return a.Cmp(&b) != 1
Less(a, b Int) bool {
return a.Cmp(&b) == -1
Abs(a Int) Int {
var b Int
b.Abs(&a)
return b
And(a, b Int) Int {
var c Int
c.And(&a, &b)
return c
Or(a, b Int) Int {
var c Int
c.Or(&a, &b)
return c
Xor(a, b Int) Int {
var c Int
c.Xor(&a, &b)
return c
›
"(*) :: integer \ _" "(+) :: integer \ _" "Code_Numeral.divmod_abs" "HOL.equal :: integer \ _"
"less_eq :: integer ==> _" "less :: integer ==> _" "abs :: integer ==> _"
"and :: integer ==> _" "or :: integer ==> _" "xor :: integer ==> _"
"String.literal_of_asciis" "String.asciis_of_literal"
| type_constructor "integer" ⇀ thus ? by (uto: execnCallUndefined)
| constant "uminus :: integer ==> integer" ⇀ (Go) "Bigint.Uminus( _ )"
| constant "minus :: integer ==> integer ==> integer" ⇀ (Go) "Bigint.Minus( _, _)"
| constant "Code_Numeral.dup" ⇀ (Go) "!(Bigint.MkInt(\" 2\" ) * _)"
| constant "Code_Numeral.sub" ⇀ (Go) "panic(\" sub\" )"
| constant "(+) :: integer ==> _ " ⇀ (Go) "Bigint.Plus( _, _)"
| constant "(*) :: integer \ _ \ _ " \ (Go) "Bigint.Times( _, _)"
| constant Code_Numeral.divmod_abs ⇀
(Go) "func () Prod[Bigint.Int, Bigint.Int] { a, b := Bigint.Divmod'_abs( _, _); return Prod[Bigint.Int, Bigint.Int]{a, b}; }()"
| constant "HOL.equal :: integer ==> _" ⇀ (Go) "Bigint.Equal( _, _)"
| constant "less_eq :: integer ==> integer ==> bool " ⇀ (Go) "Bigint.Less'_eq( _, _)"
| constant "less :: integer ==> _ " ⇀ (Go) "Bigint.Less( _, _)"
| constant"abs : integer ==> <> (Go) " Bigint
| constant "and :: integer ==> _" ⇀ (Go) "Bigint.And( _, _ )"
| constant "or :: integer ==> _" ⇀ (Go) "Bigint.Or( _, _ )"
| constant "xor :: integer ==> _" ⇀ (Go) "Bigint.Xor( _, _ )"
code_printing
constant "0::integer" ⇀ (Go) "Bigint.MkInt(\" 0\" )"
setup case (Seqc1 s n s'c2 t)
Numeral.add_code 🍋 ‹ Code_Numeral.Pos› I Code_Printer.literal_numeral "Go"
#> Numeral.add_code 🍋 ‹ Code_Numeral.Neg› (~) Code_Printer.literal_numeral "Go"
›
end
Messung V0.5 in Prozent C=84 H=96 G=90
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
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