meli/melib/src/sieve/compiler/grammar/tests/test_size.rs

63 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::{
grammar::instruction::CompilerState,
lexer::{word::Word, Token},
CompileError,
};
use crate::sieve::compiler::grammar::test::Test;
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub(crate) struct TestSize {
pub over: bool,
pub limit: usize,
pub is_not: bool,
}
impl<'x> CompilerState<'x> {
pub(crate) fn parse_test_size(&mut self) -> Result<Test, CompileError> {
let token_info = self.tokens.unwrap_next()?;
let over = match token_info.token {
Token::Tag(Word::Over) => true,
Token::Tag(Word::Under) => false,
_ => {
return Err(token_info.expected("':over' or ':under'"));
}
};
let token_info = self.tokens.unwrap_next()?;
if let Token::Number(limit) = token_info.token {
Ok(Test::Size(TestSize {
over,
limit,
is_not: false,
}))
} else {
Err(token_info.expected("number"))
}
}
}