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use crate::alloc::vec::Vec;
#[inline]
pub fn decode<T: ?Sized + AsRef<[u8]>>(input: &T) -> Result<Vec<u8>, base64::DecodeError> {
base64::decode_config(input, base64::URL_SAFE_NO_PAD)
}
#[inline]
pub fn decode_to_vec<'a, T: ?Sized + AsRef<[u8]>>(
input: &T,
output: &'a mut Vec<u8>,
) -> Result<&'a [u8], base64::DecodeError> {
let bytes = input.as_ref();
let current_length = output.len();
let original_max_length = ((bytes.len() + 3) >> 2) * 3;
output.reserve(original_max_length);
unsafe {
output.set_len(current_length + original_max_length);
}
let original_length = decode_to_slice(bytes, &mut output[current_length..])?.len();
unsafe {
output.set_len(current_length + original_length);
}
Ok(&output[current_length..])
}
#[inline]
pub fn decode_to_slice<'a, T: ?Sized + AsRef<[u8]>>(
input: &T,
output: &'a mut [u8],
) -> Result<&'a [u8], base64::DecodeError> {
let length = base64::decode_config_slice(input, base64::URL_SAFE_NO_PAD, output)?;
Ok(&output[..length])
}
#[deprecated(since = "1.4.0", note = "Please use the `decode_to_vec` function instead")]
#[inline]
pub fn decode_and_push_to_vec<T: ?Sized + AsRef<[u8]>>(
input: &T,
mut output: Vec<u8>,
) -> Result<Vec<u8>, base64::DecodeError> {
decode_to_vec(input, &mut output)?;
Ok(output)
}
#[deprecated(since = "1.4.0", note = "Please use the `decode_to_vec` function instead")]
pub fn decode_and_push_to_vec_mut<T: ?Sized + AsRef<[u8]>>(
input: &T,
output: &mut Vec<u8>,
) -> Result<(), base64::DecodeError> {
decode_to_vec(input, output)?;
Ok(())
}