qubit_redact/domain/redact_map_value_mut.rs
1// =============================================================================
2// Copyright (c) 2025 - 2026 Haixing Hu.
3//
4// SPDX-License-Identifier: Apache-2.0
5//
6// Licensed under the Apache License, Version 2.0.
7// =============================================================================
8//! Logical in-place redaction contract for text-valued map-like containers.
9
10use crate::{
11 RedactValueMut,
12 RedactionPolicy,
13};
14
15/// Redacts map values in place after classifying each value by its runtime key.
16///
17/// This provides logical replacement only; see [`RedactValueMut`] for its
18/// memory-erasure boundary.
19///
20/// # Type Parameters
21///
22/// * `K` - Runtime map-key type used for field classification.
23/// * `V` - Mutable map-value type redacted in place.
24pub trait RedactMapValueMut<K: ?Sized, V: ?Sized> {
25 /// Replaces sensitive values according to `policy`.
26 ///
27 /// # Parameters
28 ///
29 /// * `policy` - Complete policy used to classify every runtime key.
30 fn redact_map_in_place(&mut self, policy: &RedactionPolicy);
31}
32
33impl<M: ?Sized, K: ?Sized, V: ?Sized> RedactMapValueMut<K, V> for M
34where
35 for<'a> &'a mut M: IntoIterator<Item = (&'a K, &'a mut V)>,
36 K: AsRef<str>,
37 V: RedactValueMut,
38{
39 /// Replaces sensitive entry values according to their runtime keys.
40 ///
41 /// # Parameters
42 ///
43 /// * `policy` - Complete policy used to classify every runtime key.
44 #[inline]
45 fn redact_map_in_place(&mut self, policy: &RedactionPolicy) {
46 for (key, value) in self {
47 if let Some(level) = policy.sensitivity_for(key.as_ref()) {
48 value.redact_value_in_place(level, policy.masking());
49 }
50 }
51 }
52}