nautilus_model/identifiers/
actor_id.rs

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1// -------------------------------------------------------------------------------------------------
2//  Copyright (C) 2015-2025 Nautech Systems Pty Ltd. All rights reserved.
3//  https://nautechsystems.io
4//
5//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
6//  You may not use this file except in compliance with the License.
7//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
8//
9//  Unless required by applicable law or agreed to in writing, software
10//  distributed under the License is distributed on an "AS IS" BASIS,
11//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12//  See the License for the specific language governing permissions and
13//  limitations under the License.
14// -------------------------------------------------------------------------------------------------
15
16//! Represents a valid component ID.
17
18use std::{
19    fmt::{Debug, Display, Formatter},
20    hash::Hash,
21};
22
23use nautilus_core::correctness::{FAILED, check_valid_string};
24use ustr::Ustr;
25
26/// Represents a valid component ID.
27#[repr(C)]
28#[derive(Clone, Copy, Hash, PartialEq, Eq, PartialOrd, Ord)]
29#[cfg_attr(
30    feature = "python",
31    pyo3::pyclass(module = "nautilus_trader.core.nautilus_pyo3.model")
32)]
33pub struct ActorId(Ustr);
34
35impl ActorId {
36    /// Creates a new [`ActorId`] instance with correctness checking.
37    ///
38    /// # Errors
39    ///
40    /// This function returns an error:
41    /// - If `value` is not a valid string.
42    ///
43    /// # Notes
44    ///
45    /// PyO3 requires a `Result` type for proper error handling and stacktrace printing in Python.
46    pub fn new_checked<T: AsRef<str>>(value: T) -> anyhow::Result<Self> {
47        let value = value.as_ref();
48        check_valid_string(value, stringify!(value))?;
49        Ok(Self(Ustr::from(value)))
50    }
51
52    /// Creates a new [`ActorId`] instance.
53    ///
54    /// # Panics
55    ///
56    /// This function panics:
57    /// - If `value` is not a valid string.
58    pub fn new<T: AsRef<str>>(value: T) -> Self {
59        Self::new_checked(value).expect(FAILED)
60    }
61
62    /// Returns the inner identifier value.
63    #[must_use]
64    pub fn inner(&self) -> Ustr {
65        self.0
66    }
67
68    /// Returns the inner identifier value as a string slice.
69    #[must_use]
70    pub fn as_str(&self) -> &str {
71        self.0.as_str()
72    }
73}
74
75impl Debug for ActorId {
76    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
77        write!(f, "{:?}", self.0)
78    }
79}
80
81impl Display for ActorId {
82    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
83        write!(f, "{}", self.0)
84    }
85}
86
87////////////////////////////////////////////////////////////////////////////////
88// Tests
89////////////////////////////////////////////////////////////////////////////////
90#[cfg(test)]
91mod tests {
92    use rstest::rstest;
93
94    use super::ActorId;
95
96    #[rstest]
97    fn test_string_reprs() {
98        let actor_id = ActorId::from("MyActor");
99        assert_eq!(actor_id.as_str(), "MyActor");
100        assert_eq!(format!("{actor_id}"), "MyActor");
101    }
102}
nautilus_model/identifiers/actor_id.rs

nautilus_model/identifiers/
actor_id.rs
