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// =============================================================================
// Copyright (c) 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Borrowed adapter for maps with explicitly sensitive keys.
use super::RedactMapKeySerialize;
use super::redact_serialize_scope::RedactSerializeScope;
/// Borrowed serializer adapter carrying policy and key sensitivity.
#[doc(hidden)]
pub struct RedactedMapKeySerializeRef<'value, 'policy, T: ?Sized> {
/// Borrowed map whose keys are classified explicitly.
value: &'value T,
/// Policy used to mask keys and optional values.
policy: &'policy crate::RedactionPolicy,
/// Sensitivity applied to every serialized key.
level: crate::Sensitivity,
/// Optional sensitivity applied uniformly to serialized values.
value_level: Option<crate::Sensitivity>,
}
impl<'value, 'policy, T: ?Sized> RedactedMapKeySerializeRef<'value, 'policy, T> {
/// Creates a map-key redaction adapter.
#[must_use]
pub fn new(
value: &'value T,
policy: &'policy crate::RedactionPolicy,
level: crate::Sensitivity,
value_level: Option<crate::Sensitivity>,
) -> Self {
Self {
value,
policy,
level,
value_level,
}
}
}
impl<T: ?Sized + RedactMapKeySerialize> serde::Serialize for RedactedMapKeySerializeRef<'_, '_, T> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
let _scope = RedactSerializeScope::new(self.policy);
self.value
.serialize_redacted_map_keys(serializer, self.policy, self.level, self.value_level)
}
}