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(* SPDX-License-Identifier: MIT *)
(* Copyright (C) 2023-2024 formalsec *)
(* Written by the Smtml programmers *)
type t =
| I8 of int
| I32 of int32
| I64 of int64
| F32 of int32
| F64 of int64
type printer =
[ `Pretty
| `Hexadecimal
]
let compare n1 n2 =
match (n1, n2) with
| I8 i1, I8 i2 -> Int.compare i1 i2
| I32 i1, I32 i2 -> Int32.compare i1 i2
| I64 i1, I64 i2 -> Int64.compare i1 i2
| F32 i1, F32 i2 ->
Float.compare (Int32.float_of_bits i1) (Int32.float_of_bits i2)
| F64 i1, F64 i2 ->
Float.compare (Int64.float_of_bits i1) (Int64.float_of_bits i2)
| I8 _, _ -> -1
| I32 _, I8 _ -> 1
| I32 _, _ -> -1
| I64 _, (I8 _ | I32 _) -> 1
| I64 _, _ -> -1
| F32 _, (I8 _ | I32 _ | I64 _) -> 1
| F32 _, F64 _ -> -1
| F64 _, _ -> 1
let equal (n1 : t) (n2 : t) : bool = compare n1 n2 = 0
let num_of_bool (b : bool) : t = I32 (if b then 1l else 0l)
let pp_num fmt (n : t) =
match n with
| I8 i -> Fmt.pf fmt "(i8 %d)" i
| I32 i -> Fmt.pf fmt "(i32 %ld)" i
| I64 i -> Fmt.pf fmt "(i64 %Ld)" i
| F32 f -> Fmt.pf fmt "(f32 %F)" (Int32.float_of_bits f)
| F64 f -> Fmt.pf fmt "(f64 %F)" (Int64.float_of_bits f)
let pp_hex fmt (n : t) =
match n with
| I8 i -> Fmt.pf fmt "0x%02x" (i land 0xff)
| I32 i -> Fmt.pf fmt "0x%08lx" i
| I64 i -> Fmt.pf fmt "0x%016Lx" i
| F32 f -> Fmt.pf fmt "(fp 0x%08lx)" f
| F64 f -> Fmt.pf fmt "(fp 0x%016Lx)" f
let printer = ref pp_num
let set_default_printer = function
| `Pretty -> printer := pp_num
| `Hexadecimal -> printer := pp_hex
let pp fmt v = !printer fmt v
let to_string (n : t) : string = Fmt.str "%a" pp n
let to_json (n : t) : Yojson.Basic.t = `String (to_string n)
let type_of (n : t) =
match n with
| I8 _ -> Ty.(Ty_bitv 8)
| I32 _ -> Ty.(Ty_bitv 32)
| I64 _ -> Ty.(Ty_bitv 64)
| F32 _ -> Ty.(Ty_fp 32)
| F64 _ -> Ty.(Ty_fp 64)