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// Copyright (C) 2019-2024 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::{NodeID, groups::GroupCoordinate};
use leo_span::Span;
use serde::{Deserialize, Serialize};
use std::fmt;
/// A group literal.
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum GroupLiteral {
/// Product group literal, e.g., `42group`.
Single(String, #[serde(with = "leo_span::span_json")] Span, NodeID),
/// An affine group literal with (x, y) coordinates.
Tuple(GroupTuple),
}
impl GroupLiteral {
pub fn set_span(&mut self, new_span: Span) {
match self {
Self::Single(_, old_span, _) => *old_span = new_span,
Self::Tuple(tuple) => tuple.span = new_span,
}
}
pub fn span(&self) -> &Span {
match self {
Self::Single(_, span, _) => span,
Self::Tuple(tuple) => &tuple.span,
}
}
pub fn id(&self) -> &NodeID {
match self {
Self::Single(_, _, id) => id,
Self::Tuple(tuple) => &tuple.id,
}
}
pub fn set_id(&mut self, id: NodeID) {
match self {
Self::Single(_, _, old_id) => *old_id = id,
Self::Tuple(tuple) => tuple.id = id,
}
}
}
impl fmt::Display for GroupLiteral {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Self::Single(string, _, _) => write!(f, "{string}"),
Self::Tuple(tuple) => write!(f, "{}", tuple.x), // Temporarily emit x coordinate only.
}
}
}
/// An affine group literal, e.g., `(42, 24)group`.
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct GroupTuple {
/// The left component of the type, e.g., `42` in the case above.
pub x: GroupCoordinate,
/// The right component of the type, e.g., `24` in the case above.
pub y: GroupCoordinate,
/// The span from `(` to `)`.
pub span: Span,
/// The ID of the node.
pub id: NodeID,
}