leo_ast/types/
integer_type.rs

1// Copyright (C) 2019-2025 Provable Inc.
2// This file is part of the Leo library.
3
4// The Leo library is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8
9// The Leo library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License
15// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.
16
17use leo_span::{Symbol, sym};
18
19use serde::{Deserialize, Serialize};
20use std::fmt;
21
22/// Explicit integer type.
23#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
24pub enum IntegerType {
25    U8,
26    U16,
27    U32,
28    U64,
29    U128,
30
31    I8,
32    I16,
33    I32,
34    I64,
35    I128,
36}
37
38impl IntegerType {
39    /// Is the integer type a signed one?
40    pub fn is_signed(&self) -> bool {
41        use IntegerType::*;
42        matches!(self, I8 | I16 | I32 | I64 | I128)
43    }
44
45    /// Returns the symbol for the integer type.
46    pub fn symbol(self) -> Symbol {
47        match self {
48            Self::I8 => sym::i8,
49            Self::I16 => sym::i16,
50            Self::I32 => sym::i32,
51            Self::I64 => sym::i64,
52            Self::I128 => sym::i128,
53            Self::U8 => sym::u8,
54            Self::U16 => sym::u16,
55            Self::U32 => sym::u32,
56            Self::U64 => sym::u64,
57            Self::U128 => sym::u128,
58        }
59    }
60}
61
62impl fmt::Display for IntegerType {
63    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
64        match *self {
65            IntegerType::U8 => write!(f, "u8"),
66            IntegerType::U16 => write!(f, "u16"),
67            IntegerType::U32 => write!(f, "u32"),
68            IntegerType::U64 => write!(f, "u64"),
69            IntegerType::U128 => write!(f, "u128"),
70
71            IntegerType::I8 => write!(f, "i8"),
72            IntegerType::I16 => write!(f, "i16"),
73            IntegerType::I32 => write!(f, "i32"),
74            IntegerType::I64 => write!(f, "i64"),
75            IntegerType::I128 => write!(f, "i128"),
76        }
77    }
78}
leo_ast/types/integer_type.rs

leo_ast/types/
integer_type.rs
