nautilus-core 0.62.0

Core functionality for the Nautilus trading engine
Documentation 
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// -------------------------------------------------------------------------------------------------
//  Copyright (C) 2015-2026 Nautech Systems Pty Ltd. All rights reserved.
//  https://nautechsystems.io
//
//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
//  You may not use this file except in compliance with the License.
//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
//
//  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.
// -------------------------------------------------------------------------------------------------

//! Core constants.

/// The NautilusTrader string constant.
pub static NAUTILUS_TRADER: &str = "NautilusTrader";

/// The `nautilus-core` crate version string embedded at compile time.
pub static NAUTILUS_VERSION_CORE: &str = env!("CARGO_PKG_VERSION");

/// The NautilusTrader version string selected for the compiled application.
pub static NAUTILUS_VERSION: &str = if cfg!(feature = "python") {
    env!("NAUTILUS_VERSION")
} else {
    NAUTILUS_VERSION_CORE
};

/// The NautilusTrader common User-Agent string including the current version at compile time.
pub static NAUTILUS_USER_AGENT: &str = if cfg!(feature = "python") {
    env!("NAUTILUS_USER_AGENT")
} else {
    concat!("NautilusTrader/", env!("CARGO_PKG_VERSION"))
};

/// Prefix for log messages outside the main logging subsystem.
pub static NAUTILUS_PREFIX: &str = "[NAUTILUS]";

#[cfg(test)]
mod tests {
    use rstest::rstest;

    use super::*;

    #[cfg(not(feature = "python"))]
    #[rstest]
    fn test_nautilus_versions_rust() {
        assert_eq!(NAUTILUS_VERSION_CORE, env!("CARGO_PKG_VERSION"));
        assert_eq!(NAUTILUS_VERSION, env!("CARGO_PKG_VERSION"));
        assert_eq!(
            NAUTILUS_USER_AGENT,
            concat!("NautilusTrader/", env!("CARGO_PKG_VERSION")),
        );
    }

    #[cfg(feature = "python")]
    #[rstest]
    fn test_nautilus_versions_python() {
        assert_eq!(NAUTILUS_VERSION_CORE, env!("CARGO_PKG_VERSION"));
        assert_eq!(NAUTILUS_VERSION, env!("NAUTILUS_VERSION"));
        assert_eq!(NAUTILUS_USER_AGENT, env!("NAUTILUS_USER_AGENT"));
    }
}