// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#[cfg(feature = "serde")]

use serde::{Deserialize, Serialize};

use std::fmt;

/// Unary operators

#[derive(Debug, Clone, PartialEq, Eq, Hash)]

#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]

pub enum UnaryOperator {

Plus,

Minus,

Not,

}

impl fmt::Display for UnaryOperator {

fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

f.write_str(match self {

UnaryOperator::Plus => "+",

UnaryOperator::Minus => "-",

UnaryOperator::Not => "NOT",

})

}

}

/// Binary operators

#[derive(Debug, Clone, PartialEq, Eq, Hash)]

#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]

pub enum BinaryOperator {

Plus,

Minus,

Multiply,

Divide,

Modulus,

StringConcat,

Gt,

Lt,

GtEq,

LtEq,

Eq,

NotEq,

And,

Or,

Like,

NotLike,

BitwiseOr,

BitwiseAnd,

BitwiseXor,

}

impl fmt::Display for BinaryOperator {

fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

f.write_str(match self {

BinaryOperator::Plus => "+",

BinaryOperator::Minus => "-",

BinaryOperator::Multiply => "*",

BinaryOperator::Divide => "/",

BinaryOperator::Modulus => "%",

BinaryOperator::StringConcat => "||",

BinaryOperator::Gt => ">",

BinaryOperator::Lt => "<",

BinaryOperator::GtEq => ">=",

BinaryOperator::LtEq => "<=",

BinaryOperator::Eq => "=",

BinaryOperator::NotEq => "<>",

BinaryOperator::And => "AND",

BinaryOperator::Or => "OR",

BinaryOperator::Like => "LIKE",

BinaryOperator::NotLike => "NOT LIKE",

BinaryOperator::BitwiseOr => "|",

BinaryOperator::BitwiseAnd => "&",

BinaryOperator::BitwiseXor => "^",

})

}

}