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// Copyright (C) 2019-2021 Aleo Systems Inc.
// This file is part of the Leo library.

// The Leo library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// The Leo library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.

use crate::ast::Rule;

use pest_ast::FromPest;
use serde::Serialize;
use std::fmt;

#[derive(Clone, Debug, FromPest, PartialEq, Serialize)]
#[pest_ast(rule(Rule::type_integer_unsigned))]
pub enum UnsignedIntegerType {
    U8Type(U8Type),
    U16Type(U16Type),
    U32Type(U32Type),
    U64Type(U64Type),
    U128Type(U128Type),
}

#[derive(Clone, Debug, FromPest, PartialEq, Serialize)]
#[pest_ast(rule(Rule::type_u8))]
pub struct U8Type {}

#[derive(Clone, Debug, FromPest, PartialEq, Serialize)]
#[pest_ast(rule(Rule::type_u16))]
pub struct U16Type {}

#[derive(Clone, Debug, FromPest, PartialEq, Serialize)]
#[pest_ast(rule(Rule::type_u32))]
pub struct U32Type {}

#[derive(Clone, Debug, FromPest, PartialEq, Serialize)]
#[pest_ast(rule(Rule::type_u64))]
pub struct U64Type {}

#[derive(Clone, Debug, FromPest, PartialEq, Serialize)]
#[pest_ast(rule(Rule::type_u128))]
pub struct U128Type {}

impl fmt::Display for UnsignedIntegerType {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match self {
            UnsignedIntegerType::U8Type(_) => write!(f, "u8"),
            UnsignedIntegerType::U16Type(_) => write!(f, "u16"),
            UnsignedIntegerType::U32Type(_) => write!(f, "u32"),
            UnsignedIntegerType::U64Type(_) => write!(f, "u64"),
            UnsignedIntegerType::U128Type(_) => write!(f, "u128"),
        }
    }
}