Struct serde::lib::str::Utf8Chunk

source ·
pub struct Utf8Chunk<'a> {
    valid: &'a str,
    invalid: &'a [u8],
}
🔬This is a nightly-only experimental API. (utf8_chunks)
Expand description

An item returned by the Utf8Chunks iterator.

A Utf8Chunk stores a sequence of u8 up to the first broken character when decoding a UTF-8 string.

Examples

#![feature(utf8_chunks)]

use std::str::Utf8Chunks;

// An invalid UTF-8 string
let bytes = b"foo\xF1\x80bar";

// Decode the first `Utf8Chunk`
let chunk = Utf8Chunks::new(bytes).next().unwrap();

// The first three characters are valid UTF-8
assert_eq!("foo", chunk.valid());

// The fourth character is broken
assert_eq!(b"\xF1\x80", chunk.invalid());

Fields

valid: &'a str
🔬This is a nightly-only experimental API. (utf8_chunks)
invalid: &'a [u8]
🔬This is a nightly-only experimental API. (utf8_chunks)

Implementations

🔬This is a nightly-only experimental API. (utf8_chunks)

Returns the next validated UTF-8 substring.

This substring can be empty at the start of the string or between broken UTF-8 characters.

🔬This is a nightly-only experimental API. (utf8_chunks)

Returns the invalid sequence that caused a failure.

The returned slice will have a maximum length of 3 and starts after the substring given by valid. Decoding will resume after this sequence.

If empty, this is the last chunk in the string. If non-empty, an unexpected byte was encountered or the end of the input was reached unexpectedly.

Lossy decoding would replace this sequence with U+FFFD REPLACEMENT CHARACTER.

Trait Implementations

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

Auto Trait Implementations

Blanket Implementations

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Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
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The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.