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-rw-r--r--vendor/quick-error-1.2.3/src/lib.rs1262
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diff --git a/vendor/quick-error-1.2.3/src/lib.rs b/vendor/quick-error-1.2.3/src/lib.rs
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--- a/vendor/quick-error-1.2.3/src/lib.rs
+++ /dev/null
@@ -1,1262 +0,0 @@
-#![warn(missing_docs)]
-//! A macro which makes errors easy to write
-//!
-//! Minimum type is like this:
-//!
-//! ```rust
-//! #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//!
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! Variant1 {}
-//! }
-//! }
-//! ```
-//! Both ``pub`` and non-public types may be declared, and all meta attributes
-//! (such as ``#[derive(Debug)]``) are forwarded as is. The `Debug` must be
-//! implemented (but you may do that yourself if you like). The documentation
-//! comments ``/// something`` (as well as other meta attrbiutes) on variants
-//! are allowed.
-//!
-//! # Allowed Syntax
-//!
-//! You may add arbitrary parameters to any struct variant:
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! /// IO Error
-//! Io(err: std::io::Error) {}
-//! /// Utf8 Error
-//! Utf8(err: std::str::Utf8Error) {}
-//! }
-//! }
-//! ```
-//!
-//! Note unlike in normal Enum declarations you declare names of fields (which
-//! are omitted from type). How they can be used is outlined below.
-//!
-//! Now you might have noticed trailing braces `{}`. They are used to define
-//! implementations. By default:
-//!
-//! * `Error::cause()` returns None (even if type wraps some value)
-//! * `Display` outputs debug representation
-//! * No `From` implementations are defined
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! Io(err: std::io::Error) {
-//! display("{}", err)
-//! }
-//! Utf8(err: std::str::Utf8Error) {
-//! display("utf8 error")
-//! }
-//! }
-//! }
-//! ```
-//!
-//! To change `cause` method to return some error, add `cause(value)`, for
-//! example:
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! Io(err: std::io::Error) {
-//! cause(err)
-//! }
-//! Utf8(err: std::str::Utf8Error) {
-//! display("utf8 error")
-//! }
-//! Other(err: Box<std::error::Error>) {
-//! cause(&**err)
-//! }
-//! }
-//! }
-//! ```
-//! Note you don't need to wrap value in `Some`, its implicit. In case you want
-//! `None` returned just omit the `cause`. You can't return `None`
-//! conditionally.
-//!
-//! To change how each clause is `Display`ed add `display(pattern,..args)`,
-//! for example:
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! Io(err: std::io::Error) {
-//! display("I/O error: {}", err)
-//! }
-//! Utf8(err: std::str::Utf8Error) {
-//! display("Utf8 error, valid up to {}", err.valid_up_to())
-//! }
-//! }
-//! }
-//! ```
-//!
-//! If you need a reference to the error when `Display`ing, you can instead use
-//! `display(x) -> (pattern, ..args)`, where `x` sets the name of the reference.
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! use std::error::Error; // put methods like `source()` of this trait into scope
-//!
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! Io(err: std::io::Error) {
-//! display(x) -> ("I/O: {}", err)
-//! }
-//! Utf8(err: std::str::Utf8Error) {
-//! display(self_) -> ("UTF-8 error. Valid up to {}", err.valid_up_to())
-//! }
-//! }
-//! }
-//! ```
-//!
-//! To convert to the type from any other, use one of the three forms of
-//! `from` clause.
-//!
-//! For example, to convert simple wrapper use bare `from()`:
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! Io(err: std::io::Error) {
-//! from()
-//! }
-//! }
-//! }
-//! ```
-//!
-//! This implements ``From<io::Error>``.
-//!
-//! To convert to singleton enumeration type (discarding the value), use
-//! the `from(type)` form:
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! FormatError {
-//! from(std::fmt::Error)
-//! }
-//! }
-//! }
-//! ```
-//!
-//! And the most powerful form is `from(var: type) -> (arguments...)`. It
-//! might be used to convert to type with multiple arguments or for arbitrary
-//! value conversions:
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//! #
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum SomeError {
-//! FailedOperation(s: &'static str, errno: i32) {
-//! from(errno: i32) -> ("os error", errno)
-//! from(e: std::io::Error) -> ("io error", e.raw_os_error().unwrap())
-//! }
-//! /// Converts from both kinds of utf8 errors
-//! Utf8(err: std::str::Utf8Error) {
-//! from()
-//! from(err: std::string::FromUtf8Error) -> (err.utf8_error())
-//! }
-//! }
-//! }
-//! ```
-//! # Context
-//!
-//! Since quick-error 1.1 we also have a `context` declaration, which is
-//! similar to (the longest form of) `from`, but allows adding some context to
-//! the error. We need a longer example to demonstrate this:
-//!
-//! ```rust
-//! # #[macro_use] extern crate quick_error;
-//! # use std::io;
-//! # use std::fs::File;
-//! # use std::path::{Path, PathBuf};
-//! #
-//! use quick_error::ResultExt;
-//!
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum Error {
-//! File(filename: PathBuf, err: io::Error) {
-//! context(path: &'a Path, err: io::Error)
-//! -> (path.to_path_buf(), err)
-//! }
-//! }
-//! }
-//!
-//! fn openfile(path: &Path) -> Result<(), Error> {
-//! try!(File::open(path).context(path));
-//!
-//! // If we didn't have context, the line above would be written as;
-//! //
-//! // try!(File::open(path)
-//! // .map_err(|err| Error::File(path.to_path_buf(), err)));
-//!
-//! Ok(())
-//! }
-//!
-//! # fn main() {
-//! # openfile(Path::new("/etc/somefile")).ok();
-//! # }
-//! ```
-//!
-//! Each `context(a: A, b: B)` clause implements
-//! `From<Context<A, B>> for Error`. Which means multiple `context` clauses
-//! are a subject to the normal coherence rules. Unfortunately, we can't
-//! provide full support of generics for the context, but you may either use a
-//! lifetime `'a` for references or `AsRef<Type>` (the latter means `A:
-//! AsRef<Type>`, and `Type` must be concrete). It's also occasionally useful
-//! to use a tuple as a type of the first argument.
-//!
-//! You also need to `use quick_error::ResultExt` extension trait to get
-//! working `.context()` method.
-//!
-//! More info on context in [this article](http://bit.ly/1PsuxDt).
-//!
-//! All forms of `from`, `display`, `cause`, and `context`
-//! clauses can be combined and put in arbitrary order. Only `from` and
-//! `context` can be used multiple times in single variant of enumeration.
-//! Docstrings are also okay. Empty braces can be omitted as of quick_error
-//! 0.1.3.
-//!
-//! # Private Enums
-//!
-//! Since quick-error 1.2.0 we have a way to make a private enum that is
-//! wrapped by public structure:
-//!
-//! ```rust
-//! #[macro_use] extern crate quick_error;
-//! # fn main() {}
-//!
-//! quick_error! {
-//! #[derive(Debug)]
-//! pub enum PubError wraps ErrorEnum {
-//! Variant1 {}
-//! }
-//! }
-//! ```
-//!
-//! This generates data structures like this
-//!
-//! ```rust
-//!
-//! pub struct PubError(ErrorEnum);
-//!
-//! enum ErrorEnum {
-//! Variant1,
-//! }
-//!
-//! ```
-//!
-//! Which in turn allows you to export just `PubError` in your crate and keep
-//! actual enumeration private to the crate. This is useful to keep backwards
-//! compatibility for error types. Currently there is no shorcuts to define
-//! error constructors for the inner type, but we consider adding some in
-//! future versions.
-//!
-//! It's possible to declare internal enum as public too.
-//!
-//!
-
-
-/// Main macro that does all the work
-#[macro_export]
-macro_rules! quick_error {
-
- ( $(#[$meta:meta])*
- pub enum $name:ident { $($chunks:tt)* }
- ) => {
- quick_error!(SORT [pub enum $name $(#[$meta])* ]
- items [] buf []
- queue [ $($chunks)* ]);
- };
- ( $(#[$meta:meta])*
- enum $name:ident { $($chunks:tt)* }
- ) => {
- quick_error!(SORT [enum $name $(#[$meta])* ]
- items [] buf []
- queue [ $($chunks)* ]);
- };
-
- ( $(#[$meta:meta])*
- pub enum $name:ident wraps $enum_name:ident { $($chunks:tt)* }
- ) => {
- quick_error!(WRAPPER $enum_name [ pub struct ] $name $(#[$meta])*);
- quick_error!(SORT [enum $enum_name $(#[$meta])* ]
- items [] buf []
- queue [ $($chunks)* ]);
- };
-
- ( $(#[$meta:meta])*
- pub enum $name:ident wraps pub $enum_name:ident { $($chunks:tt)* }
- ) => {
- quick_error!(WRAPPER $enum_name [ pub struct ] $name $(#[$meta])*);
- quick_error!(SORT [pub enum $enum_name $(#[$meta])* ]
- items [] buf []
- queue [ $($chunks)* ]);
- };
- ( $(#[$meta:meta])*
- enum $name:ident wraps $enum_name:ident { $($chunks:tt)* }
- ) => {
- quick_error!(WRAPPER $enum_name [ struct ] $name $(#[$meta])*);
- quick_error!(SORT [enum $enum_name $(#[$meta])* ]
- items [] buf []
- queue [ $($chunks)* ]);
- };
-
- ( $(#[$meta:meta])*
- enum $name:ident wraps pub $enum_name:ident { $($chunks:tt)* }
- ) => {
- quick_error!(WRAPPER $enum_name [ struct ] $name $(#[$meta])*);
- quick_error!(SORT [pub enum $enum_name $(#[$meta])* ]
- items [] buf []
- queue [ $($chunks)* ]);
- };
-
-
- (
- WRAPPER $internal:ident [ $($strdef:tt)* ] $strname:ident
- $(#[$meta:meta])*
- ) => {
- $(#[$meta])*
- $($strdef)* $strname ( $internal );
-
- impl ::std::fmt::Display for $strname {
- fn fmt(&self, f: &mut ::std::fmt::Formatter)
- -> ::std::fmt::Result
- {
- ::std::fmt::Display::fmt(&self.0, f)
- }
- }
-
- impl From<$internal> for $strname {
- fn from(err: $internal) -> Self {
- $strname(err)
- }
- }
-
- impl ::std::error::Error for $strname {
- #[allow(deprecated)]
- fn cause(&self) -> Option<&::std::error::Error> {
- self.0.cause()
- }
- }
- };
-
- // Queue is empty, can do the work
- (SORT [enum $name:ident $( #[$meta:meta] )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [ ]
- queue [ ]
- ) => {
- quick_error!(ENUM_DEFINITION [enum $name $( #[$meta] )*]
- body []
- queue [$($( #[$imeta] )*
- => $iitem: $imode [$( $ivar: $ityp ),*] )*]
- );
- quick_error!(IMPLEMENTATIONS $name {$(
- $iitem: $imode [$(#[$imeta])*] [$( $ivar: $ityp ),*] {$( $ifuncs )*}
- )*});
- $(
- quick_error!(ERROR_CHECK $imode $($ifuncs)*);
- )*
- };
- (SORT [pub enum $name:ident $( #[$meta:meta] )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [ ]
- queue [ ]
- ) => {
- quick_error!(ENUM_DEFINITION [pub enum $name $( #[$meta] )*]
- body []
- queue [$($( #[$imeta] )*
- => $iitem: $imode [$( $ivar: $ityp ),*] )*]
- );
- quick_error!(IMPLEMENTATIONS $name {$(
- $iitem: $imode [$(#[$imeta])*] [$( $ivar: $ityp ),*] {$( $ifuncs )*}
- )*});
- $(
- quick_error!(ERROR_CHECK $imode $($ifuncs)*);
- )*
- };
- // Add meta to buffer
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )*]
- queue [ #[$qmeta:meta] $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])* => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*]
- buf [$( #[$bmeta] )* #[$qmeta] ]
- queue [$( $tail )*]);
- };
- // Add ident to buffer
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )*]
- queue [ $qitem:ident $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])*
- => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*]
- buf [$(#[$bmeta])* => $qitem : UNIT [ ] ]
- queue [$( $tail )*]);
- };
- // Flush buffer on meta after ident
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )*
- => $bitem:ident: $bmode:tt [$( $bvar:ident: $btyp:ty ),*] ]
- queue [ #[$qmeta:meta] $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- enum [$( $(#[$emeta])* => $eitem $(( $($etyp),* ))* )*
- $(#[$bmeta])* => $bitem: $bmode $(( $($btyp),* ))*]
- items [$($( #[$imeta:meta] )*
- => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*
- $bitem: $bmode [$( $bvar:$btyp ),*] {} ]
- buf [ #[$qmeta] ]
- queue [$( $tail )*]);
- };
- // Add tuple enum-variant
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )* => $bitem:ident: UNIT [ ] ]
- queue [($( $qvar:ident: $qtyp:ty ),+) $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])* => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*]
- buf [$( #[$bmeta] )* => $bitem: TUPLE [$( $qvar:$qtyp ),*] ]
- queue [$( $tail )*]
- );
- };
- // Add struct enum-variant - e.g. { descr: &'static str }
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )* => $bitem:ident: UNIT [ ] ]
- queue [{ $( $qvar:ident: $qtyp:ty ),+} $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])* => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*]
- buf [$( #[$bmeta] )* => $bitem: STRUCT [$( $qvar:$qtyp ),*] ]
- queue [$( $tail )*]);
- };
- // Add struct enum-variant, with excess comma - e.g. { descr: &'static str, }
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )* => $bitem:ident: UNIT [ ] ]
- queue [{$( $qvar:ident: $qtyp:ty ),+ ,} $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])* => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*]
- buf [$( #[$bmeta] )* => $bitem: STRUCT [$( $qvar:$qtyp ),*] ]
- queue [$( $tail )*]);
- };
- // Add braces and flush always on braces
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )*
- => $bitem:ident: $bmode:tt [$( $bvar:ident: $btyp:ty ),*] ]
- queue [ {$( $qfuncs:tt )*} $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])* => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*
- $(#[$bmeta])* => $bitem: $bmode [$( $bvar:$btyp ),*] {$( $qfuncs )*} ]
- buf [ ]
- queue [$( $tail )*]);
- };
- // Flush buffer on double ident
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )*
- => $bitem:ident: $bmode:tt [$( $bvar:ident: $btyp:ty ),*] ]
- queue [ $qitem:ident $( $tail:tt )*]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])* => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*
- $(#[$bmeta])* => $bitem: $bmode [$( $bvar:$btyp ),*] {} ]
- buf [ => $qitem : UNIT [ ] ]
- queue [$( $tail )*]);
- };
- // Flush buffer on end
- (SORT [$( $def:tt )*]
- items [$($( #[$imeta:meta] )*
- => $iitem:ident: $imode:tt [$( $ivar:ident: $ityp:ty ),*]
- {$( $ifuncs:tt )*} )* ]
- buf [$( #[$bmeta:meta] )*
- => $bitem:ident: $bmode:tt [$( $bvar:ident: $btyp:ty ),*] ]
- queue [ ]
- ) => {
- quick_error!(SORT [$( $def )*]
- items [$( $(#[$imeta])* => $iitem: $imode [$( $ivar:$ityp ),*] {$( $ifuncs )*} )*
- $(#[$bmeta])* => $bitem: $bmode [$( $bvar:$btyp ),*] {} ]
- buf [ ]
- queue [ ]);
- };
- // Public enum (Queue Empty)
- (ENUM_DEFINITION [pub enum $name:ident $( #[$meta:meta] )*]
- body [$($( #[$imeta:meta] )*
- => $iitem:ident ($(($( $ttyp:ty ),+))*) {$({$( $svar:ident: $styp:ty ),*})*} )* ]
- queue [ ]
- ) => {
- #[allow(unknown_lints)] // no unused_doc_comments in older rust
- #[allow(renamed_and_removed_lints)]
- #[allow(unused_doc_comment)]
- #[allow(unused_doc_comments)]
- $(#[$meta])*
- pub enum $name {
- $(
- $(#[$imeta])*
- $iitem $(($( $ttyp ),*))* $({$( $svar: $styp ),*})*,
- )*
- }
- };
- // Private enum (Queue Empty)
- (ENUM_DEFINITION [enum $name:ident $( #[$meta:meta] )*]
- body [$($( #[$imeta:meta] )*
- => $iitem:ident ($(($( $ttyp:ty ),+))*) {$({$( $svar:ident: $styp:ty ),*})*} )* ]
- queue [ ]
- ) => {
- #[allow(unknown_lints)] // no unused_doc_comments in older rust
- #[allow(renamed_and_removed_lints)]
- #[allow(unused_doc_comment)]
- #[allow(unused_doc_comments)]
- $(#[$meta])*
- enum $name {
- $(
- $(#[$imeta])*
- $iitem $(($( $ttyp ),*))* $({$( $svar: $styp ),*})*,
- )*
- }
- };
- // Unit variant
- (ENUM_DEFINITION [$( $def:tt )*]
- body [$($( #[$imeta:meta] )*
- => $iitem:ident ($(($( $ttyp:ty ),+))*) {$({$( $svar:ident: $styp:ty ),*})*} )* ]
- queue [$( #[$qmeta:meta] )*
- => $qitem:ident: UNIT [ ] $( $queue:tt )*]
- ) => {
- quick_error!(ENUM_DEFINITION [ $($def)* ]
- body [$($( #[$imeta] )* => $iitem ($(($( $ttyp ),+))*) {$({$( $svar: $styp ),*})*} )*
- $( #[$qmeta] )* => $qitem () {} ]
- queue [ $($queue)* ]
- );
- };
- // Tuple variant
- (ENUM_DEFINITION [$( $def:tt )*]
- body [$($( #[$imeta:meta] )*
- => $iitem:ident ($(($( $ttyp:ty ),+))*) {$({$( $svar:ident: $styp:ty ),*})*} )* ]
- queue [$( #[$qmeta:meta] )*
- => $qitem:ident: TUPLE [$( $qvar:ident: $qtyp:ty ),+] $( $queue:tt )*]
- ) => {
- quick_error!(ENUM_DEFINITION [ $($def)* ]
- body [$($( #[$imeta] )* => $iitem ($(($( $ttyp ),+))*) {$({$( $svar: $styp ),*})*} )*
- $( #[$qmeta] )* => $qitem (($( $qtyp ),*)) {} ]
- queue [ $($queue)* ]
- );
- };
- // Struct variant
- (ENUM_DEFINITION [$( $def:tt )*]
- body [$($( #[$imeta:meta] )*
- => $iitem:ident ($(($( $ttyp:ty ),+))*) {$({$( $svar:ident: $styp:ty ),*})*} )* ]
- queue [$( #[$qmeta:meta] )*
- => $qitem:ident: STRUCT [$( $qvar:ident: $qtyp:ty ),*] $( $queue:tt )*]
- ) => {
- quick_error!(ENUM_DEFINITION [ $($def)* ]
- body [$($( #[$imeta] )* => $iitem ($(($( $ttyp ),+))*) {$({$( $svar: $styp ),*})*} )*
- $( #[$qmeta] )* => $qitem () {{$( $qvar: $qtyp ),*}} ]
- queue [ $($queue)* ]
- );
- };
- (IMPLEMENTATIONS
- $name:ident {$(
- $item:ident: $imode:tt [$(#[$imeta:meta])*] [$( $var:ident: $typ:ty ),*] {$( $funcs:tt )*}
- )*}
- ) => {
- #[allow(unused)]
- #[allow(unknown_lints)] // no unused_doc_comments in older rust
- #[allow(renamed_and_removed_lints)]
- #[allow(unused_doc_comment)]
- #[allow(unused_doc_comments)]
- impl ::std::fmt::Display for $name {
- fn fmt(&self, fmt: &mut ::std::fmt::Formatter)
- -> ::std::fmt::Result
- {
- match *self {
- $(
- $(#[$imeta])*
- quick_error!(ITEM_PATTERN
- $name $item: $imode [$( ref $var ),*]
- ) => {
- let display_fn = quick_error!(FIND_DISPLAY_IMPL
- $name $item: $imode
- {$( $funcs )*});
-
- display_fn(self, fmt)
- }
- )*
- }
- }
- }
- #[allow(unused)]
- #[allow(unknown_lints)] // no unused_doc_comments in older rust
- #[allow(renamed_and_removed_lints)]
- #[allow(unused_doc_comment)]
- #[allow(unused_doc_comments)]
- impl ::std::error::Error for $name {
- fn cause(&self) -> Option<&::std::error::Error> {
- match *self {
- $(
- $(#[$imeta])*
- quick_error!(ITEM_PATTERN
- $name $item: $imode [$( ref $var ),*]
- ) => {
- quick_error!(FIND_CAUSE_IMPL
- $item: $imode [$( $var ),*]
- {$( $funcs )*})
- }
- )*
- }
- }
- }
- $(
- quick_error!(FIND_FROM_IMPL
- $name $item: $imode [$( $var:$typ ),*]
- {$( $funcs )*});
- )*
- $(
- quick_error!(FIND_CONTEXT_IMPL
- $name $item: $imode [$( $var:$typ ),*]
- {$( $funcs )*});
- )*
- };
- (FIND_DISPLAY_IMPL $name:ident $item:ident: $imode:tt
- { display($self_:tt) -> ($( $exprs:tt )*) $( $tail:tt )*}
- ) => {
- |quick_error!(IDENT $self_): &$name, f: &mut ::std::fmt::Formatter| { write!(f, $( $exprs )*) }
- };
- (FIND_DISPLAY_IMPL $name:ident $item:ident: $imode:tt
- { display($pattern:expr) $( $tail:tt )*}
- ) => {
- |_, f: &mut ::std::fmt::Formatter| { write!(f, $pattern) }
- };
- (FIND_DISPLAY_IMPL $name:ident $item:ident: $imode:tt
- { display($pattern:expr, $( $exprs:tt )*) $( $tail:tt )*}
- ) => {
- |_, f: &mut ::std::fmt::Formatter| { write!(f, $pattern, $( $exprs )*) }
- };
- (FIND_DISPLAY_IMPL $name:ident $item:ident: $imode:tt
- { $t:tt $( $tail:tt )*}
- ) => {
- quick_error!(FIND_DISPLAY_IMPL
- $name $item: $imode
- {$( $tail )*})
- };
- (FIND_DISPLAY_IMPL $name:ident $item:ident: $imode:tt
- { }
- ) => {
- |self_: &$name, f: &mut ::std::fmt::Formatter| {
- write!(f, "{:?}", self_)
- }
- };
- (FIND_DESCRIPTION_IMPL $item:ident: $imode:tt $me:ident $fmt:ident
- [$( $var:ident ),*]
- { description($expr:expr) $( $tail:tt )*}
- ) => {};
- (FIND_DESCRIPTION_IMPL $item:ident: $imode:tt $me:ident $fmt:ident
- [$( $var:ident ),*]
- { $t:tt $( $tail:tt )*}
- ) => {};
- (FIND_DESCRIPTION_IMPL $item:ident: $imode:tt $me:ident $fmt:ident
- [$( $var:ident ),*]
- { }
- ) => {};
- (FIND_CAUSE_IMPL $item:ident: $imode:tt
- [$( $var:ident ),*]
- { cause($expr:expr) $( $tail:tt )*}
- ) => {
- Some($expr)
- };
- (FIND_CAUSE_IMPL $item:ident: $imode:tt
- [$( $var:ident ),*]
- { $t:tt $( $tail:tt )*}
- ) => {
- quick_error!(FIND_CAUSE_IMPL
- $item: $imode [$( $var ),*]
- { $($tail)* })
- };
- (FIND_CAUSE_IMPL $item:ident: $imode:tt
- [$( $var:ident ),*]
- { }
- ) => {
- None
- };
- // ----------------------------- FROM IMPL --------------------------
- (FIND_FROM_IMPL $name:ident $item:ident: $imode:tt
- [$( $var:ident: $typ:ty ),*]
- { from() $( $tail:tt )*}
- ) => {
- $(
- impl From<$typ> for $name {
- fn from($var: $typ) -> $name {
- $name::$item($var)
- }
- }
- )*
- quick_error!(FIND_FROM_IMPL
- $name $item: $imode [$( $var:$typ ),*]
- {$( $tail )*});
- };
- (FIND_FROM_IMPL $name:ident $item:ident: UNIT
- [ ]
- { from($ftyp:ty) $( $tail:tt )*}
- ) => {
- impl From<$ftyp> for $name {
- fn from(_discarded_error: $ftyp) -> $name {
- $name::$item
- }
- }
- quick_error!(FIND_FROM_IMPL
- $name $item: UNIT [ ]
- {$( $tail )*});
- };
- (FIND_FROM_IMPL $name:ident $item:ident: TUPLE
- [$( $var:ident: $typ:ty ),*]
- { from($fvar:ident: $ftyp:ty) -> ($( $texpr:expr ),*) $( $tail:tt )*}
- ) => {
- impl From<$ftyp> for $name {
- fn from($fvar: $ftyp) -> $name {
- $name::$item($( $texpr ),*)
- }
- }
- quick_error!(FIND_FROM_IMPL
- $name $item: TUPLE [$( $var:$typ ),*]
- { $($tail)* });
- };
- (FIND_FROM_IMPL $name:ident $item:ident: STRUCT
- [$( $var:ident: $typ:ty ),*]
- { from($fvar:ident: $ftyp:ty) -> {$( $tvar:ident: $texpr:expr ),*} $( $tail:tt )*}
- ) => {
- impl From<$ftyp> for $name {
- fn from($fvar: $ftyp) -> $name {
- $name::$item {
- $( $tvar: $texpr ),*
- }
- }
- }
- quick_error!(FIND_FROM_IMPL
- $name $item: STRUCT [$( $var:$typ ),*]
- { $($tail)* });
- };
- (FIND_FROM_IMPL $name:ident $item:ident: $imode:tt
- [$( $var:ident: $typ:ty ),*]
- { $t:tt $( $tail:tt )*}
- ) => {
- quick_error!(FIND_FROM_IMPL
- $name $item: $imode [$( $var:$typ ),*]
- {$( $tail )*}
- );
- };
- (FIND_FROM_IMPL $name:ident $item:ident: $imode:tt
- [$( $var:ident: $typ:ty ),*]
- { }
- ) => {
- };
- // ----------------------------- CONTEXT IMPL --------------------------
- (FIND_CONTEXT_IMPL $name:ident $item:ident: TUPLE
- [$( $var:ident: $typ:ty ),*]
- { context($cvar:ident: AsRef<$ctyp:ty>, $fvar:ident: $ftyp:ty)
- -> ($( $texpr:expr ),*) $( $tail:tt )* }
- ) => {
- impl<T: AsRef<$ctyp>> From<$crate::Context<T, $ftyp>> for $name {
- fn from(
- $crate::Context($cvar, $fvar): $crate::Context<T, $ftyp>)
- -> $name
- {
- $name::$item($( $texpr ),*)
- }
- }
- quick_error!(FIND_CONTEXT_IMPL
- $name $item: TUPLE [$( $var:$typ ),*]
- { $($tail)* });
- };
- (FIND_CONTEXT_IMPL $name:ident $item:ident: TUPLE
- [$( $var:ident: $typ:ty ),*]
- { context($cvar:ident: $ctyp:ty, $fvar:ident: $ftyp:ty)
- -> ($( $texpr:expr ),*) $( $tail:tt )* }
- ) => {
- impl<'a> From<$crate::Context<$ctyp, $ftyp>> for $name {
- fn from(
- $crate::Context($cvar, $fvar): $crate::Context<$ctyp, $ftyp>)
- -> $name
- {
- $name::$item($( $texpr ),*)
- }
- }
- quick_error!(FIND_CONTEXT_IMPL
- $name $item: TUPLE [$( $var:$typ ),*]
- { $($tail)* });
- };
- (FIND_CONTEXT_IMPL $name:ident $item:ident: STRUCT
- [$( $var:ident: $typ:ty ),*]
- { context($cvar:ident: AsRef<$ctyp:ty>, $fvar:ident: $ftyp:ty)
- -> {$( $tvar:ident: $texpr:expr ),*} $( $tail:tt )* }
- ) => {
- impl<T: AsRef<$ctyp>> From<$crate::Context<T, $ftyp>> for $name {
- fn from(
- $crate::Context($cvar, $fvar): $crate::Context<$ctyp, $ftyp>)
- -> $name
- {
- $name::$item {
- $( $tvar: $texpr ),*
- }
- }
- }
- quick_error!(FIND_CONTEXT_IMPL
- $name $item: STRUCT [$( $var:$typ ),*]
- { $($tail)* });
- };
- (FIND_CONTEXT_IMPL $name:ident $item:ident: STRUCT
- [$( $var:ident: $typ:ty ),*]
- { context($cvar:ident: $ctyp:ty, $fvar:ident: $ftyp:ty)
- -> {$( $tvar:ident: $texpr:expr ),*} $( $tail:tt )* }
- ) => {
- impl<'a> From<$crate::Context<$ctyp, $ftyp>> for $name {
- fn from(
- $crate::Context($cvar, $fvar): $crate::Context<$ctyp, $ftyp>)
- -> $name
- {
- $name::$item {
- $( $tvar: $texpr ),*
- }
- }
- }
- quick_error!(FIND_CONTEXT_IMPL
- $name $item: STRUCT [$( $var:$typ ),*]
- { $($tail)* });
- };
- (FIND_CONTEXT_IMPL $name:ident $item:ident: $imode:tt
- [$( $var:ident: $typ:ty ),*]
- { $t:tt $( $tail:tt )*}
- ) => {
- quick_error!(FIND_CONTEXT_IMPL
- $name $item: $imode [$( $var:$typ ),*]
- {$( $tail )*}
- );
- };
- (FIND_CONTEXT_IMPL $name:ident $item:ident: $imode:tt
- [$( $var:ident: $typ:ty ),*]
- { }
- ) => {
- };
- // ----------------------------- ITEM IMPL --------------------------
- (ITEM_BODY $(#[$imeta:meta])* $item:ident: UNIT
- ) => { };
- (ITEM_BODY $(#[$imeta:meta])* $item:ident: TUPLE
- [$( $typ:ty ),*]
- ) => {
- ($( $typ ),*)
- };
- (ITEM_BODY $(#[$imeta:meta])* $item:ident: STRUCT
- [$( $var:ident: $typ:ty ),*]
- ) => {
- {$( $var:$typ ),*}
- };
- (ITEM_PATTERN $name:ident $item:ident: UNIT []
- ) => {
- $name::$item
- };
- (ITEM_PATTERN $name:ident $item:ident: TUPLE
- [$( ref $var:ident ),*]
- ) => {
- $name::$item ($( ref $var ),*)
- };
- (ITEM_PATTERN $name:ident $item:ident: STRUCT
- [$( ref $var:ident ),*]
- ) => {
- $name::$item {$( ref $var ),*}
- };
- // This one should match all allowed sequences in "funcs" but not match
- // anything else.
- // This is to contrast FIND_* clauses which just find stuff they need and
- // skip everything else completely
- (ERROR_CHECK $imode:tt display($self_:tt) -> ($( $exprs:tt )*) $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK $imode $($tail)*); };
- (ERROR_CHECK $imode:tt display($pattern: expr) $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK $imode $($tail)*); };
- (ERROR_CHECK $imode:tt display($pattern: expr, $( $exprs:tt )*) $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK $imode $($tail)*); };
- (ERROR_CHECK $imode:tt description($expr:expr) $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK $imode $($tail)*); };
- (ERROR_CHECK $imode:tt cause($expr:expr) $($tail:tt)*)
- => { quick_error!(ERROR_CHECK $imode $($tail)*); };
- (ERROR_CHECK $imode:tt from() $($tail:tt)*)
- => { quick_error!(ERROR_CHECK $imode $($tail)*); };
- (ERROR_CHECK $imode:tt from($ftyp:ty) $($tail:tt)*)
- => { quick_error!(ERROR_CHECK $imode $($tail)*); };
- (ERROR_CHECK TUPLE from($fvar:ident: $ftyp:ty) -> ($( $e:expr ),*) $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK TUPLE $($tail)*); };
- (ERROR_CHECK STRUCT from($fvar:ident: $ftyp:ty) -> {$( $v:ident: $e:expr ),*} $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK STRUCT $($tail)*); };
-
- (ERROR_CHECK TUPLE context($cvar:ident: $ctyp:ty, $fvar:ident: $ftyp:ty)
- -> ($( $e:expr ),*) $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK TUPLE $($tail)*); };
- (ERROR_CHECK STRUCT context($cvar:ident: $ctyp:ty, $fvar:ident: $ftyp:ty)
- -> {$( $v:ident: $e:expr ),*} $( $tail:tt )*)
- => { quick_error!(ERROR_CHECK STRUCT $($tail)*); };
-
- (ERROR_CHECK $imode:tt ) => {};
- // Utility functions
- (IDENT $ident:ident) => { $ident }
-}
-
-
-/// Generic context type
-///
-/// Used mostly as a transport for `ResultExt::context` method
-#[derive(Debug)]
-pub struct Context<X, E>(pub X, pub E);
-
-/// Result extension trait adding a `context` method
-pub trait ResultExt<T, E> {
- /// The method is use to add context information to current operation
- ///
- /// The context data is then used in error constructor to store additional
- /// information within error. For example, you may add a filename as a
- /// context for file operation. See crate documentation for the actual
- /// example.
- fn context<X>(self, x: X) -> Result<T, Context<X, E>>;
-}
-
-impl<T, E> ResultExt<T, E> for Result<T, E> {
- fn context<X>(self, x: X) -> Result<T, Context<X, E>> {
- self.map_err(|e| Context(x, e))
- }
-}
-
-
-
-#[cfg(test)]
-#[allow(deprecated)]
-mod test {
- use std::num::{ParseFloatError, ParseIntError};
- use std::str::Utf8Error;
- use std::string::FromUtf8Error;
- use std::error::Error;
- use std::path::{Path, PathBuf};
-
- use super::ResultExt;
-
- quick_error! {
- #[derive(Debug)]
- pub enum Bare {
- One
- Two
- }
- }
-
- #[test]
- fn bare_item_direct() {
- assert_eq!(format!("{}", Bare::One), "One".to_string());
- assert_eq!(format!("{:?}", Bare::One), "One".to_string());
- assert!(Bare::One.cause().is_none());
- }
- #[test]
- fn bare_item_trait() {
- let err: &Error = &Bare::Two;
- assert_eq!(format!("{}", err), "Two".to_string());
- assert_eq!(format!("{:?}", err), "Two".to_string());
- assert!(err.cause().is_none());
- }
-
- quick_error! {
- #[derive(Debug)]
- pub enum Wrapper wraps Wrapped {
- One
- Two(s: String) {
- display("two: {}", s)
- from()
- }
- }
- }
-
- #[test]
- fn wrapper() {
- assert_eq!(format!("{}", Wrapper::from(Wrapped::One)),
- "One".to_string());
- assert_eq!(format!("{}",
- Wrapper::from(Wrapped::from(String::from("hello")))),
- "two: hello".to_string());
- assert_eq!(format!("{:?}", Wrapper::from(Wrapped::One)),
- "Wrapper(One)".to_string());
- }
-
- quick_error! {
- #[derive(Debug, PartialEq)]
- pub enum TupleWrapper {
- /// ParseFloat Error
- ParseFloatError(err: ParseFloatError) {
- from()
- display("parse float error: {err}", err=err)
- cause(err)
- }
- Other(descr: &'static str) {
- display("Error: {}", descr)
- }
- /// FromUtf8 Error
- FromUtf8Error(err: Utf8Error, source: Vec<u8>) {
- cause(err)
- display(me) -> ("{desc} at index {pos}: {err}", desc="utf8 error", pos=err.valid_up_to(), err=err)
- from(err: FromUtf8Error) -> (err.utf8_error().clone(), err.into_bytes())
- }
- Discard {
- from(&'static str)
- }
- Singleton {
- display("Just a string")
- }
- }
- }
-
- #[test]
- fn tuple_wrapper_err() {
- let cause = "one and a half times pi".parse::<f32>().unwrap_err();
- let err = TupleWrapper::ParseFloatError(cause.clone());
- assert_eq!(format!("{}", err), format!("parse float error: {}", cause));
- assert_eq!(format!("{:?}", err), format!("ParseFloatError({:?})", cause));
- assert_eq!(format!("{:?}", err.cause().unwrap()), format!("{:?}", cause));
- }
-
- #[test]
- fn tuple_wrapper_trait_str() {
- let desc = "hello";
- let err: &Error = &TupleWrapper::Other(desc);
- assert_eq!(format!("{}", err), format!("Error: {}", desc));
- assert_eq!(format!("{:?}", err), format!("Other({:?})", desc));
- assert!(err.cause().is_none());
- }
-
- #[test]
- fn tuple_wrapper_trait_two_fields() {
- let invalid_utf8: Vec<u8> = vec![0, 159, 146, 150];
- let cause = String::from_utf8(invalid_utf8.clone()).unwrap_err().utf8_error();
- let err: &Error = &TupleWrapper::FromUtf8Error(cause.clone(), invalid_utf8.clone());
- assert_eq!(format!("{}", err), format!("{desc} at index {pos}: {cause}", desc="utf8 error", pos=cause.valid_up_to(), cause=cause));
- assert_eq!(format!("{:?}", err), format!("FromUtf8Error({:?}, {:?})", cause, invalid_utf8));
- assert_eq!(format!("{:?}", err.cause().unwrap()), format!("{:?}", cause));
- }
-
- #[test]
- fn tuple_wrapper_from() {
- let cause = "one and a half times pi".parse::<f32>().unwrap_err();
- let err = TupleWrapper::ParseFloatError(cause.clone());
- let err_from: TupleWrapper = From::from(cause);
- assert_eq!(err_from, err);
- }
-
- #[test]
- fn tuple_wrapper_custom_from() {
- let invalid_utf8: Vec<u8> = vec![0, 159, 146, 150];
- let cause = String::from_utf8(invalid_utf8.clone()).unwrap_err();
- let err = TupleWrapper::FromUtf8Error(cause.utf8_error().clone(), invalid_utf8);
- let err_from: TupleWrapper = From::from(cause);
- assert_eq!(err_from, err);
- }
-
- #[test]
- fn tuple_wrapper_discard() {
- let err: TupleWrapper = From::from("hello");
- assert_eq!(format!("{}", err), format!("Discard"));
- assert_eq!(format!("{:?}", err), format!("Discard"));
- assert!(err.cause().is_none());
- }
-
- #[test]
- fn tuple_wrapper_singleton() {
- let err: TupleWrapper = TupleWrapper::Singleton;
- assert_eq!(format!("{}", err), format!("Just a string"));
- assert_eq!(format!("{:?}", err), format!("Singleton"));
- assert!(err.cause().is_none());
- }
-
- quick_error! {
- #[derive(Debug, PartialEq)]
- pub enum StructWrapper {
- // Utf8 Error
- Utf8Error{ err: Utf8Error, hint: Option<&'static str> } {
- cause(err)
- display(me) -> ("{desc} at index {pos}: {err}", desc="utf8 error", pos=err.valid_up_to(), err=err)
- from(err: Utf8Error) -> { err: err, hint: None }
- }
- // Utf8 Error
- ExcessComma { descr: &'static str, } {
- display("Error: {}", descr)
- }
- }
- }
-
- #[test]
- fn struct_wrapper_err() {
- let invalid_utf8: Vec<u8> = vec![0, 159, 146, 150];
- let cause = String::from_utf8(invalid_utf8.clone()).unwrap_err().utf8_error();
- let err: &Error = &StructWrapper::Utf8Error{ err: cause.clone(), hint: Some("nonsense") };
- assert_eq!(format!("{}", err), format!("{desc} at index {pos}: {cause}", desc="utf8 error", pos=cause.valid_up_to(), cause=cause));
- assert_eq!(format!("{:?}", err), format!("Utf8Error {{ err: {:?}, hint: {:?} }}", cause, Some("nonsense")));
- assert_eq!(format!("{:?}", err.cause().unwrap()), format!("{:?}", cause));
- }
-
- #[test]
- fn struct_wrapper_struct_from() {
- let invalid_utf8: Vec<u8> = vec![0, 159, 146, 150];
- let cause = String::from_utf8(invalid_utf8.clone()).unwrap_err().utf8_error();
- let err = StructWrapper::Utf8Error{ err: cause.clone(), hint: None };
- let err_from: StructWrapper = From::from(cause);
- assert_eq!(err_from, err);
- }
-
- #[test]
- fn struct_wrapper_excess_comma() {
- let descr = "hello";
- let err = StructWrapper::ExcessComma { descr: descr };
- assert_eq!(format!("{}", err), format!("Error: {}", descr));
- assert_eq!(format!("{:?}", err), format!("ExcessComma {{ descr: {:?} }}", descr));
- assert!(err.cause().is_none());
- }
-
- quick_error! {
- #[derive(Debug)]
- pub enum ContextErr {
- Float(src: String, err: ParseFloatError) {
- context(s: &'a str, e: ParseFloatError) -> (s.to_string(), e)
- display("Float error {:?}: {}", src, err)
- }
- Int { src: String, err: ParseIntError } {
- context(s: &'a str, e: ParseIntError)
- -> {src: s.to_string(), err: e}
- display("Int error {:?}: {}", src, err)
- }
- Utf8(path: PathBuf, err: Utf8Error) {
- context(p: AsRef<Path>, e: Utf8Error)
- -> (p.as_ref().to_path_buf(), e)
- display("Path error at {:?}: {}", path, err)
- }
- Utf8Str(s: String, err: ::std::io::Error) {
- context(s: AsRef<str>, e: ::std::io::Error)
- -> (s.as_ref().to_string(), e)
- display("Str error {:?}: {}", s, err)
- }
- }
- }
-
- #[test]
- fn parse_float_error() {
- fn parse_float(s: &str) -> Result<f32, ContextErr> {
- Ok(try!(s.parse().context(s)))
- }
- assert_eq!(format!("{}", parse_float("12ab").unwrap_err()),
- r#"Float error "12ab": invalid float literal"#);
- }
-
- #[test]
- fn parse_int_error() {
- fn parse_int(s: &str) -> Result<i32, ContextErr> {
- Ok(try!(s.parse().context(s)))
- }
- assert_eq!(format!("{}", parse_int("12.5").unwrap_err()),
- r#"Int error "12.5": invalid digit found in string"#);
- }
-
- #[test]
- fn debug_context() {
- fn parse_int(s: &str) -> i32 {
- s.parse().context(s).unwrap()
- }
- assert_eq!(parse_int("12"), 12);
- assert_eq!(format!("{:?}", "x".parse::<i32>().context("x")),
- r#"Err(Context("x", ParseIntError { kind: InvalidDigit }))"#);
- }
-
- #[test]
- fn path_context() {
- fn parse_utf<P: AsRef<Path>>(s: &[u8], p: P)
- -> Result<(), ContextErr>
- {
- try!(::std::str::from_utf8(s).context(p));
- Ok(())
- }
- let etext = parse_utf(b"a\x80\x80", "/etc").unwrap_err().to_string();
- assert!(etext.starts_with(
- "Path error at \"/etc\": invalid utf-8"));
- let etext = parse_utf(b"\x80\x80", PathBuf::from("/tmp")).unwrap_err()
- .to_string();
- assert!(etext.starts_with(
- "Path error at \"/tmp\": invalid utf-8"));
- }
-
- #[test]
- fn conditional_compilation() {
- quick_error! {
- #[allow(dead_code)]
- #[derive(Debug)]
- pub enum Test {
- #[cfg(feature = "foo")]
- Variant
- }
- }
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 11:48:44 +0000