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meli/melib/src/sieve/compiler/grammar/expr/mod.rs

82 lines
2.1 KiB
Rust

/*
* Copyright (c) 2020-2023, Stalwart Labs Ltd.
*
* This file is part of the Stalwart Sieve Interpreter.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
* in the LICENSE file at the top-level directory of this distribution.
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You can be released from the requirements of the AGPLv3 license by
* purchasing a commercial license. Please contact licensing@stalw.art
* for more details.
*/
use serde::{Deserialize, Serialize};
use crate::sieve::compiler::{Number, VariableType};
pub mod parser;
pub mod tokenizer;
#[derive(Debug, PartialEq, Eq, Clone, Serialize, Deserialize)]
pub(crate) enum Expression {
Variable(VariableType),
Number(Number),
String(String),
BinaryOperator(BinaryOperator),
UnaryOperator(UnaryOperator),
Function { id: u32, num_args: u32 },
}
#[derive(Debug, PartialEq, Eq, Clone, Copy, Serialize, Deserialize)]
pub(crate) enum BinaryOperator {
Add,
Subtract,
Multiply,
Divide,
And,
Or,
Xor,
Eq,
Ne,
Lt,
Le,
Gt,
Ge,
}
#[derive(Debug, PartialEq, Eq, Clone, Copy, Serialize, Deserialize)]
pub(crate) enum UnaryOperator {
Not,
Minus,
}
#[derive(Debug, PartialEq, Eq, Clone)]
pub(crate) enum Token {
Variable(VariableType),
Function {
name: String,
id: u32,
num_args: u32,
},
Number(Number),
String(String),
BinaryOperator(BinaryOperator),
UnaryOperator(UnaryOperator),
OpenParen,
CloseParen,
Comma,
}