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// =============================================================================
// Copyright (c) 2025 - 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
//! Validation errors for truncated HTTP body captures.
use std::{
error::Error,
fmt::{
self,
Display,
Formatter,
},
};
/// Reports inconsistent source-length metadata for a body capture.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum BodyCaptureError {
/// A truncated capture claimed a total no larger than captured bytes.
InvalidTotalLength {
/// Number of bytes present in the capture.
captured: usize,
/// Rejected claimed total source length.
total: usize,
},
}
impl Display for BodyCaptureError {
/// Writes a concise description of the invalid capture metadata.
///
/// # Parameters
///
/// * `formatter` - Destination formatting context.
///
/// # Returns
///
/// The formatter result from writing the error description.
///
/// # Errors
///
/// Returns [`fmt::Error`] when the destination rejects a write.
#[inline]
fn fmt(&self, formatter: &mut Formatter<'_>) -> fmt::Result {
match self {
Self::InvalidTotalLength { captured, total } => write!(
formatter,
"truncated body total length {total} must exceed {captured} captured bytes",
),
}
}
}
impl Error for BodyCaptureError {}