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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use nserror::{
nsresult, NS_ERROR_FAILURE, NS_ERROR_NOT_IMPLEMENTED, NS_ERROR_NO_INTERFACE,
NS_ERROR_NULL_POINTER, NS_ERROR_UNEXPECTED,
};
use nsstring::nsCString;
use rkv::{MigrateError, StoreError};
use std::{io::Error as IoError, str::Utf8Error, string::FromUtf16Error, sync::PoisonError};
#[derive(Debug, Fail)]
pub enum KeyValueError {
#[fail(display = "error converting string: {:?}", _0)]
ConvertBytes(Utf8Error),
#[fail(display = "error converting string: {:?}", _0)]
ConvertString(FromUtf16Error),
#[fail(display = "I/O error: {:?}", _0)]
IoError(IoError),
#[fail(display = "migrate error: {:?}", _0)]
MigrateError(MigrateError),
#[fail(display = "no interface '{}'", _0)]
NoInterface(&'static str),
// NB: We can avoid storing the nsCString error description
// once nsresult is a real type with a Display implementation
// per https://bugzilla.mozilla.org/show_bug.cgi?id=1513350.
#[fail(display = "error result {}", _0)]
Nsresult(nsCString, nsresult),
#[fail(display = "arg is null")]
NullPointer,
#[fail(display = "poison error getting read/write lock")]
PoisonError,
#[fail(display = "error reading key/value pair")]
Read,
#[fail(display = "store error: {:?}", _0)]
StoreError(StoreError),
#[fail(display = "unsupported owned value type")]
UnsupportedOwned,
#[fail(display = "unexpected value")]
UnexpectedValue,
#[fail(display = "unsupported variant type: {}", _0)]
UnsupportedVariant(u16),
}
impl From<nsresult> for KeyValueError {
fn from(result: nsresult) -> KeyValueError {
KeyValueError::Nsresult(result.error_name(), result)
}
}
impl From<KeyValueError> for nsresult {
fn from(err: KeyValueError) -> nsresult {
match err {
KeyValueError::ConvertBytes(_) => NS_ERROR_FAILURE,
KeyValueError::ConvertString(_) => NS_ERROR_FAILURE,
KeyValueError::IoError(_) => NS_ERROR_FAILURE,
KeyValueError::NoInterface(_) => NS_ERROR_NO_INTERFACE,
KeyValueError::Nsresult(_, result) => result,
KeyValueError::NullPointer => NS_ERROR_NULL_POINTER,
KeyValueError::PoisonError => NS_ERROR_UNEXPECTED,
KeyValueError::Read => NS_ERROR_FAILURE,
KeyValueError::StoreError(_) => NS_ERROR_FAILURE,
KeyValueError::MigrateError(_) => NS_ERROR_FAILURE,
KeyValueError::UnsupportedOwned => NS_ERROR_NOT_IMPLEMENTED,
KeyValueError::UnexpectedValue => NS_ERROR_UNEXPECTED,
KeyValueError::UnsupportedVariant(_) => NS_ERROR_NOT_IMPLEMENTED,
}
}
}
impl From<IoError> for KeyValueError {
fn from(err: IoError) -> KeyValueError {
KeyValueError::IoError(err)
}
}
impl From<StoreError> for KeyValueError {
fn from(err: StoreError) -> KeyValueError {
KeyValueError::StoreError(err)
}
}
impl From<MigrateError> for KeyValueError {
fn from(err: MigrateError) -> KeyValueError {
KeyValueError::MigrateError(err)
}
}
impl From<Utf8Error> for KeyValueError {
fn from(err: Utf8Error) -> KeyValueError {
KeyValueError::ConvertBytes(err)
}
}
impl From<FromUtf16Error> for KeyValueError {
fn from(err: FromUtf16Error) -> KeyValueError {
KeyValueError::ConvertString(err)
}
}
impl<T> From<PoisonError<T>> for KeyValueError {
fn from(_err: PoisonError<T>) -> KeyValueError {
KeyValueError::PoisonError
}
}
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