mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 23:34:47 -05:00
267 lines
6.9 KiB
Rust
267 lines
6.9 KiB
Rust
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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use crate::js_errors::JSErrorColor;
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pub use crate::msg::ErrorKind;
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use crate::resolve_addr::ResolveAddrError;
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use deno::JSError;
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use hyper;
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#[cfg(unix)]
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use nix::{errno::Errno, Error as UnixError};
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use std;
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use std::fmt;
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use std::io;
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use url;
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pub type DenoResult<T> = std::result::Result<T, DenoError>;
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#[derive(Debug)]
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pub struct DenoError {
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repr: Repr,
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}
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#[derive(Debug)]
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enum Repr {
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Simple(ErrorKind, String),
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IoErr(io::Error),
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UrlErr(url::ParseError),
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HyperErr(hyper::Error),
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}
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pub fn new(kind: ErrorKind, msg: String) -> DenoError {
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DenoError {
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repr: Repr::Simple(kind, msg),
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}
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}
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impl DenoError {
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pub fn kind(&self) -> ErrorKind {
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match self.repr {
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Repr::Simple(kind, ref _msg) => kind,
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// Repr::Simple(kind) => kind,
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Repr::IoErr(ref err) => {
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use std::io::ErrorKind::*;
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match err.kind() {
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NotFound => ErrorKind::NotFound,
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PermissionDenied => ErrorKind::PermissionDenied,
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ConnectionRefused => ErrorKind::ConnectionRefused,
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ConnectionReset => ErrorKind::ConnectionReset,
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ConnectionAborted => ErrorKind::ConnectionAborted,
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NotConnected => ErrorKind::NotConnected,
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AddrInUse => ErrorKind::AddrInUse,
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AddrNotAvailable => ErrorKind::AddrNotAvailable,
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BrokenPipe => ErrorKind::BrokenPipe,
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AlreadyExists => ErrorKind::AlreadyExists,
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WouldBlock => ErrorKind::WouldBlock,
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InvalidInput => ErrorKind::InvalidInput,
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InvalidData => ErrorKind::InvalidData,
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TimedOut => ErrorKind::TimedOut,
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Interrupted => ErrorKind::Interrupted,
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WriteZero => ErrorKind::WriteZero,
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Other => ErrorKind::Other,
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UnexpectedEof => ErrorKind::UnexpectedEof,
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_ => unreachable!(),
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}
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}
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Repr::UrlErr(ref err) => {
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use url::ParseError::*;
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match err {
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EmptyHost => ErrorKind::EmptyHost,
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IdnaError => ErrorKind::IdnaError,
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InvalidPort => ErrorKind::InvalidPort,
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InvalidIpv4Address => ErrorKind::InvalidIpv4Address,
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InvalidIpv6Address => ErrorKind::InvalidIpv6Address,
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InvalidDomainCharacter => ErrorKind::InvalidDomainCharacter,
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RelativeUrlWithoutBase => ErrorKind::RelativeUrlWithoutBase,
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RelativeUrlWithCannotBeABaseBase => {
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ErrorKind::RelativeUrlWithCannotBeABaseBase
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}
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SetHostOnCannotBeABaseUrl => ErrorKind::SetHostOnCannotBeABaseUrl,
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Overflow => ErrorKind::Overflow,
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}
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}
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Repr::HyperErr(ref err) => {
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// For some reason hyper::errors::Kind is private.
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if err.is_parse() {
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ErrorKind::HttpParse
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} else if err.is_user() {
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ErrorKind::HttpUser
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} else if err.is_canceled() {
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ErrorKind::HttpCanceled
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} else if err.is_closed() {
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ErrorKind::HttpClosed
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} else {
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ErrorKind::HttpOther
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}
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}
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}
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}
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}
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impl fmt::Display for DenoError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self.repr {
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Repr::Simple(_kind, ref err_str) => f.pad(err_str),
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Repr::IoErr(ref err) => err.fmt(f),
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Repr::UrlErr(ref err) => err.fmt(f),
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Repr::HyperErr(ref err) => err.fmt(f),
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}
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}
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}
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impl std::error::Error for DenoError {
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fn description(&self) -> &str {
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match self.repr {
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Repr::Simple(_kind, ref msg) => msg.as_str(),
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Repr::IoErr(ref err) => err.description(),
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Repr::UrlErr(ref err) => err.description(),
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Repr::HyperErr(ref err) => err.description(),
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}
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}
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fn cause(&self) -> Option<&dyn std::error::Error> {
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match self.repr {
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Repr::Simple(_kind, ref _msg) => None,
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Repr::IoErr(ref err) => Some(err),
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Repr::UrlErr(ref err) => Some(err),
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Repr::HyperErr(ref err) => Some(err),
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}
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}
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}
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impl From<io::Error> for DenoError {
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#[inline]
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fn from(err: io::Error) -> Self {
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Self {
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repr: Repr::IoErr(err),
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}
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}
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}
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impl From<url::ParseError> for DenoError {
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#[inline]
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fn from(err: url::ParseError) -> Self {
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Self {
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repr: Repr::UrlErr(err),
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}
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}
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}
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impl From<hyper::Error> for DenoError {
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#[inline]
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fn from(err: hyper::Error) -> Self {
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Self {
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repr: Repr::HyperErr(err),
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}
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}
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}
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impl From<ResolveAddrError> for DenoError {
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fn from(e: ResolveAddrError) -> Self {
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match e {
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ResolveAddrError::Syntax => Self {
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repr: Repr::Simple(
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ErrorKind::InvalidInput,
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"invalid address syntax".to_string(),
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),
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},
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ResolveAddrError::Resolution(io_err) => Self {
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repr: Repr::IoErr(io_err),
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},
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}
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}
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}
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#[cfg(unix)]
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impl From<UnixError> for DenoError {
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fn from(e: UnixError) -> Self {
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match e {
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UnixError::Sys(Errno::EPERM) => Self {
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repr: Repr::Simple(
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ErrorKind::PermissionDenied,
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Errno::EPERM.desc().to_owned(),
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),
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},
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UnixError::Sys(Errno::EINVAL) => Self {
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repr: Repr::Simple(
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ErrorKind::InvalidInput,
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Errno::EINVAL.desc().to_owned(),
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),
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},
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UnixError::Sys(Errno::ENOENT) => Self {
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repr: Repr::Simple(
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ErrorKind::NotFound,
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Errno::ENOENT.desc().to_owned(),
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),
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},
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UnixError::Sys(err) => Self {
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repr: Repr::Simple(ErrorKind::UnixError, err.desc().to_owned()),
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},
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_ => Self {
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repr: Repr::Simple(ErrorKind::Other, format!("{}", e)),
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},
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}
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}
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}
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pub fn bad_resource() -> DenoError {
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new(ErrorKind::BadResource, String::from("bad resource id"))
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}
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pub fn permission_denied() -> DenoError {
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new(
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ErrorKind::PermissionDenied,
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String::from("permission denied"),
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)
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}
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pub fn op_not_implemented() -> DenoError {
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new(ErrorKind::OpNotAvaiable, String::from("op not implemented"))
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}
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pub fn worker_init_failed() -> DenoError {
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// TODO(afinch7) pass worker error data through here
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new(
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ErrorKind::WorkerInitFailed,
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String::from("worker init failed"),
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)
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}
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pub fn no_buffer_specified() -> DenoError {
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new(ErrorKind::InvalidInput, String::from("no buffer specified"))
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}
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#[derive(Debug)]
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pub enum RustOrJsError {
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Rust(DenoError),
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Js(JSError),
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}
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impl From<DenoError> for RustOrJsError {
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fn from(e: DenoError) -> Self {
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RustOrJsError::Rust(e)
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}
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}
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impl From<JSError> for RustOrJsError {
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fn from(e: JSError) -> Self {
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RustOrJsError::Js(e)
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}
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}
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impl fmt::Display for RustOrJsError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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RustOrJsError::Rust(e) => e.fmt(f),
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RustOrJsError::Js(e) => JSErrorColor(e).fmt(f),
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}
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}
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}
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// TODO(ry) This is ugly. They are essentially the same type.
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impl From<deno::JSErrorOr<DenoError>> for RustOrJsError {
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fn from(e: deno::JSErrorOr<DenoError>) -> Self {
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match e {
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deno::JSErrorOr::JSError(err) => RustOrJsError::Js(err),
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deno::JSErrorOr::Other(err) => RustOrJsError::Rust(err),
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}
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}
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}
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