qubit_metadata/
into_metadata_value.rs

1/*******************************************************************************
2 *
3 *    Copyright (c) 2025 - 2026 Haixing Hu.
4 *
5 *    SPDX-License-Identifier: Apache-2.0
6 *
7 *    Licensed under the Apache License, Version 2.0.
8 *
9 ******************************************************************************/
10//! Provides conversion from supported Rust values into metadata values.
11
12use std::collections::HashMap;
13use std::time::Duration;
14
15use bigdecimal::BigDecimal;
16use chrono::{
17    DateTime,
18    NaiveDate,
19    NaiveDateTime,
20    NaiveTime,
21    Utc,
22};
23use qubit_value::Value;
24use url::Url;
25
26/// Converts supported Rust values into the metadata backing [`Value`] type.
27///
28/// This trait is implemented for the same concrete input types accepted by
29/// [`Value::new`]. It exists so [`crate::Metadata`] can keep a generic public
30/// API while `qubit-value` keeps its internal constructor trait private.
31pub trait IntoMetadataValue {
32    /// Converts this value into a [`Value`] without changing its concrete data type.
33    ///
34    /// # Returns
35    ///
36    /// Returns the corresponding [`Value`] variant for this input type.
37    fn into_metadata_value(self) -> Value;
38}
39
40macro_rules! impl_into_metadata_value {
41    ($($type:ty),+ $(,)?) => {
42        $(
43            impl IntoMetadataValue for $type {
44                #[inline]
45                fn into_metadata_value(self) -> Value {
46                    Value::new(self)
47                }
48            }
49        )+
50    };
51}
52
53impl_into_metadata_value!(
54    bool,
55    char,
56    i8,
57    i16,
58    i32,
59    i64,
60    i128,
61    u8,
62    u16,
63    u32,
64    u64,
65    u128,
66    f32,
67    f64,
68    String,
69    &str,
70    NaiveDate,
71    NaiveTime,
72    NaiveDateTime,
73    DateTime<Utc>,
74    num_bigint::BigInt,
75    BigDecimal,
76    isize,
77    usize,
78    Duration,
79    Url,
80    HashMap<String, String>,
81    serde_json::Value,
82);
qubit_metadata/into_metadata_value.rs

qubit_metadata/
into_metadata_value.rs
