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feat: add display UI with splash screen, dashboard, and RSSI sparkline

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Implement full SSD1306 OLED display support:
- Splash screen on boot (1.5s) with project name, version, board
- Dashboard showing radio state, config, counters, RSSI/SNR
- RSSI history sparkline (64-sample ring buffer, 2px-wide bars)
- DisplayOn/DisplayOff host commands routed via dedicated channel
- Pure render functions against generic DrawTarget (no hardware coupling)
- Display on/off control bypasses radio task entirely

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
swaitsandClaude Opus 4.6 committed 2026-03-29 20:42:54 -06:00
1 parent 7064110293
commit 3102fc747a
17624 files changed
+4564928 -38
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[package]
edition = "2021"
rust-version = "1.68"
name = "thiserror"
version = "2.0.18"
authors = ["David Tolnay <dtolnay@gmail.com>"]
build = "build.rs"
autolib = false
autobins = false
autoexamples = false
autotests = false
autobenches = false
description = "derive(Error)"
documentation = "https://docs.rs/thiserror"
readme = "README.md"
keywords = [
"error",
"error-handling",
"derive",
]
categories = [
"rust-patterns",
"no-std",
]
license = "MIT OR Apache-2.0"
repository = "https://github.com/dtolnay/thiserror"
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]
rustdoc-args = [
"--generate-link-to-definition",
"--generate-macro-expansion",
"--extern-html-root-url=core=https://doc.rust-lang.org",
"--extern-html-root-url=alloc=https://doc.rust-lang.org",
"--extern-html-root-url=std=https://doc.rust-lang.org",
]
[features]
default = ["std"]
std = []
[lib]
name = "thiserror"
path = "src/lib.rs"
[[test]]
name = "compiletest"
path = "tests/compiletest.rs"
[[test]]
name = "test_backtrace"
path = "tests/test_backtrace.rs"
[[test]]
name = "test_display"
path = "tests/test_display.rs"
[[test]]
name = "test_error"
path = "tests/test_error.rs"
[[test]]
name = "test_expr"
path = "tests/test_expr.rs"
[[test]]
name = "test_from"
path = "tests/test_from.rs"
[[test]]
name = "test_generics"
path = "tests/test_generics.rs"
[[test]]
name = "test_lints"
path = "tests/test_lints.rs"
[[test]]
name = "test_option"
path = "tests/test_option.rs"
[[test]]
name = "test_path"
path = "tests/test_path.rs"
[[test]]
name = "test_source"
path = "tests/test_source.rs"
[[test]]
name = "test_transparent"
path = "tests/test_transparent.rs"
[dependencies.thiserror-impl]
version = "=2.0.18"
[dev-dependencies.anyhow]
version = "1.0.73"
[dev-dependencies.ref-cast]
version = "1.0.18"
[dev-dependencies.rustversion]
version = "1.0.13"
[dev-dependencies.trybuild]
version = "1.0.108"
features = ["diff"]
vendor/thiserror/LICENSE-APACHE
Vendored
+176
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@@ -0,0 +1,176 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
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form, that is based on (or derived from) the Work and for which the
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of this License, Derivative Works shall not include works that remain
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"Contribution" shall mean any work of authorship, including
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"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
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2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
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3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
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6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
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9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
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on Your own behalf and on Your sole responsibility, not on behalf
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END OF TERMS AND CONDITIONS
vendor/thiserror/LICENSE-MIT
Vendored
+23
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Permission is hereby granted, free of charge, to any
person obtaining a copy of this software and associated
documentation files (the "Software"), to deal in the
Software without restriction, including without
limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software
is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice
shall be included in all copies or substantial portions
of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
vendor/thiserror/README.md
Vendored
+238
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derive(Error)
=============
[<img alt="github" src="https://img.shields.io/badge/github-dtolnay/thiserror-8da0cb?style=for-the-badge&labelColor=555555&logo=github" height="20">](https://github.com/dtolnay/thiserror)
[<img alt="crates.io" src="https://img.shields.io/crates/v/thiserror.svg?style=for-the-badge&color=fc8d62&logo=rust" height="20">](https://crates.io/crates/thiserror)
[<img alt="docs.rs" src="https://img.shields.io/badge/docs.rs-thiserror-66c2a5?style=for-the-badge&labelColor=555555&logo=docs.rs" height="20">](https://docs.rs/thiserror)
[<img alt="build status" src="https://img.shields.io/github/actions/workflow/status/dtolnay/thiserror/ci.yml?branch=master&style=for-the-badge" height="20">](https://github.com/dtolnay/thiserror/actions?query=branch%3Amaster)
This library provides a convenient derive macro for the standard library's
[`std::error::Error`] trait.
[`std::error::Error`]: https://doc.rust-lang.org/std/error/trait.Error.html
```toml
[dependencies]
thiserror = "2"
```
*Compiler support: requires rustc 1.68+*
<br>
## Example
```rust
use thiserror::Error;
#[derive(Error, Debug)]
pub enum DataStoreError {
#[error("data store disconnected")]
Disconnect(#[from] io::Error),
#[error("the data for key `{0}` is not available")]
Redaction(String),
#[error("invalid header (expected {expected:?}, found {found:?})")]
InvalidHeader {
expected: String,
found: String,
},
#[error("unknown data store error")]
Unknown,
}
```
<br>
## Details
- Thiserror deliberately does not appear in your public API. You get the same
thing as if you had written an implementation of `std::error::Error` by hand,
and switching from handwritten impls to thiserror or vice versa is not a
breaking change.
- Errors may be enums, structs with named fields, tuple structs, or unit
structs.
- A `Display` impl is generated for your error if you provide `#[error("...")]`
messages on the struct or each variant of your enum, as shown above in the
example.
The messages support a shorthand for interpolating fields from the error.
- `#[error("{var}")]`&ensp;⟶&ensp;`write!("{}", self.var)`
- `#[error("{0}")]`&ensp;⟶&ensp;`write!("{}", self.0)`
- `#[error("{var:?}")]`&ensp;⟶&ensp;`write!("{:?}", self.var)`
- `#[error("{0:?}")]`&ensp;⟶&ensp;`write!("{:?}", self.0)`
These shorthands can be used together with any additional format args, which
may be arbitrary expressions. For example:
```rust
#[derive(Error, Debug)]
pub enum Error {
#[error("invalid rdo_lookahead_frames {0} (expected < {max})", max = i32::MAX)]
InvalidLookahead(u32),
}
```
If one of the additional expression arguments needs to refer to a field of the
struct or enum, then refer to named fields as `.var` and tuple fields as `.0`.
```rust
#[derive(Error, Debug)]
pub enum Error {
#[error("first letter must be lowercase but was {:?}", first_char(.0))]
WrongCase(String),
#[error("invalid index {idx}, expected at least {} and at most {}", .limits.lo, .limits.hi)]
OutOfBounds { idx: usize, limits: Limits },
}
```
- A `From` impl is generated for each variant that contains a `#[from]`
attribute.
The variant using `#[from]` must not contain any other fields beyond the
source error (and possibly a backtrace &mdash; see below). Usually `#[from]`
fields are unnamed, but `#[from]` is allowed on a named field too.
```rust
#[derive(Error, Debug)]
pub enum MyError {
Io(#[from] io::Error),
Glob(#[from] globset::Error),
}
```
- The Error trait's `source()` method is implemented to return whichever field
has a `#[source]` attribute or is named `source`, if any. This is for
identifying the underlying lower level error that caused your error.
The `#[from]` attribute always implies that the same field is `#[source]`, so
you don't ever need to specify both attributes.
Any error type that implements `std::error::Error` or dereferences to `dyn
std::error::Error` will work as a source.
```rust
#[derive(Error, Debug)]
pub struct MyError {
msg: String,
#[source] // optional if field name is `source`
source: anyhow::Error,
}
```
- The Error trait's `provide()` method is implemented to provide whichever field
has a type named `Backtrace`, if any, as a `std::backtrace::Backtrace`. Using
`Backtrace` in errors requires a nightly compiler with Rust version 1.73 or
newer.
```rust
use std::backtrace::Backtrace;
#[derive(Error, Debug)]
pub struct MyError {
msg: String,
backtrace: Backtrace, // automatically detected
}
```
- If a field is both a source (named `source`, or has `#[source]` or `#[from]`
attribute) *and* is marked `#[backtrace]`, then the Error trait's `provide()`
method is forwarded to the source's `provide` so that both layers of the error
share the same backtrace. The `#[backtrace]` attribute requires a nightly
compiler with Rust version 1.73 or newer.
```rust
#[derive(Error, Debug)]
pub enum MyError {
Io {
#[backtrace]
source: io::Error,
},
}
```
- For variants that use `#[from]` and also contain a `Backtrace` field, a
backtrace is captured from within the `From` impl.
```rust
#[derive(Error, Debug)]
pub enum MyError {
Io {
#[from]
source: io::Error,
backtrace: Backtrace,
},
}
```
- Errors may use `error(transparent)` to forward the source and Display methods
straight through to an underlying error without adding an additional message.
This would be appropriate for enums that need an "anything else" variant.
```rust
#[derive(Error, Debug)]
pub enum MyError {
...
#[error(transparent)]
Other(#[from] anyhow::Error), // source and Display delegate to anyhow::Error
}
```
Another use case is hiding implementation details of an error representation
behind an opaque error type, so that the representation is able to evolve
without breaking the crate's public API.
```rust
// PublicError is public, but opaque and easy to keep compatible.
#[derive(Error, Debug)]
#[error(transparent)]
pub struct PublicError(#[from] ErrorRepr);
impl PublicError {
// Accessors for anything we do want to expose publicly.
}
// Private and free to change across minor version of the crate.
#[derive(Error, Debug)]
enum ErrorRepr {
...
}
```
- See also the [`anyhow`] library for a convenient single error type to use in
application code.
[`anyhow`]: https://github.com/dtolnay/anyhow
<br>
## Comparison to anyhow
Use thiserror if you care about designing your own dedicated error type(s) so
that the caller receives exactly the information that you choose in the event of
failure. This most often applies to library-like code. Use [Anyhow] if you don't
care what error type your functions return, you just want it to be easy. This is
common in application-like code.
[Anyhow]: https://github.com/dtolnay/anyhow
<br>
#### License
<sup>
Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
2.0</a> or <a href="LICENSE-MIT">MIT license</a> at your option.
</sup>
<br>
<sub>
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
be dual licensed as above, without any additional terms or conditions.
</sub>
vendor/thiserror/build.rs
Vendored
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use std::env;
use std::ffi::OsString;
use std::fs;
use std::io::ErrorKind;
use std::iter;
use std::path::{Path, PathBuf};
use std::process::{self, Command, Stdio};
use std::str;
const PRIVATE: &str = "\
#[doc(hidden)]
pub mod __private$$ {
#[doc(hidden)]
pub use crate::private::*;
}
";
fn main() {
println!("cargo:rerun-if-changed=build/probe.rs");
println!("cargo:rustc-check-cfg=cfg(error_generic_member_access)");
println!("cargo:rustc-check-cfg=cfg(thiserror_nightly_testing)");
println!("cargo:rustc-check-cfg=cfg(thiserror_no_backtrace_type)");
let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let patch_version = env::var("CARGO_PKG_VERSION_PATCH").unwrap();
let module = PRIVATE.replace("$$", &patch_version);
fs::write(out_dir.join("private.rs"), module).unwrap();
let error_generic_member_access;
let consider_rustc_bootstrap;
if compile_probe(false) {
// This is a nightly or dev compiler, so it supports unstable features
// regardless of RUSTC_BOOTSTRAP. No need to rerun build script if
// RUSTC_BOOTSTRAP is changed.
error_generic_member_access = true;
consider_rustc_bootstrap = false;
} else if let Some(rustc_bootstrap) = env::var_os("RUSTC_BOOTSTRAP") {
if compile_probe(true) {
// This is a stable or beta compiler for which the user has set
// RUSTC_BOOTSTRAP to turn on unstable features. Rerun build script
// if they change it.
error_generic_member_access = true;
consider_rustc_bootstrap = true;
} else if rustc_bootstrap == "1" {
// This compiler does not support the generic member access API in
// the form that thiserror expects. No need to pay attention to
// RUSTC_BOOTSTRAP.
error_generic_member_access = false;
consider_rustc_bootstrap = false;
} else {
// This is a stable or beta compiler for which RUSTC_BOOTSTRAP is
// set to restrict the use of unstable features by this crate.
error_generic_member_access = false;
consider_rustc_bootstrap = true;
}
} else {
// Without RUSTC_BOOTSTRAP, this compiler does not support the generic
// member access API in the form that thiserror expects, but try again
// if the user turns on unstable features.
error_generic_member_access = false;
consider_rustc_bootstrap = true;
}
if error_generic_member_access {
println!("cargo:rustc-cfg=error_generic_member_access");
}
if consider_rustc_bootstrap {
println!("cargo:rerun-if-env-changed=RUSTC_BOOTSTRAP");
}
// core::error::Error stabilized in Rust 1.81
// https://blog.rust-lang.org/2024/09/05/Rust-1.81.0.html#coreerrorerror
let rustc = rustc_minor_version();
if cfg!(not(feature = "std")) && rustc.map_or(false, |rustc| rustc < 81) {
println!("cargo:rustc-cfg=feature=\"std\"");
}
let Some(rustc) = rustc else {
return;
};
// std::backtrace::Backtrace stabilized in Rust 1.65
// https://blog.rust-lang.org/2022/11/03/Rust-1.65.0.html#stabilized-apis
if rustc < 65 {
println!("cargo:rustc-cfg=thiserror_no_backtrace_type");
}
}
fn compile_probe(rustc_bootstrap: bool) -> bool {
if env::var_os("RUSTC_STAGE").is_some() {
// We are running inside rustc bootstrap. This is a highly non-standard
// environment with issues such as:
//
// https://github.com/rust-lang/cargo/issues/11138
// https://github.com/rust-lang/rust/issues/114839
//
// Let's just not use nightly features here.
return false;
}
let rustc = cargo_env_var("RUSTC");
let out_dir = cargo_env_var("OUT_DIR");
let out_subdir = Path::new(&out_dir).join("probe");
let probefile = Path::new("build").join("probe.rs");
if let Err(err) = fs::create_dir(&out_subdir) {
if err.kind() != ErrorKind::AlreadyExists {
eprintln!("Failed to create {}: {}", out_subdir.display(), err);
process::exit(1);
}
}
let rustc_wrapper = env::var_os("RUSTC_WRAPPER").filter(|wrapper| !wrapper.is_empty());
let rustc_workspace_wrapper =
env::var_os("RUSTC_WORKSPACE_WRAPPER").filter(|wrapper| !wrapper.is_empty());
let mut rustc = rustc_wrapper
.into_iter()
.chain(rustc_workspace_wrapper)
.chain(iter::once(rustc));
let mut cmd = Command::new(rustc.next().unwrap());
cmd.args(rustc);
if !rustc_bootstrap {
cmd.env_remove("RUSTC_BOOTSTRAP");
}
cmd.stderr(Stdio::null())
.arg("--edition=2018")
.arg("--crate-name=thiserror")
.arg("--crate-type=lib")
.arg("--cap-lints=allow")
.arg("--emit=dep-info,metadata")
.arg("--out-dir")
.arg(&out_subdir)
.arg(probefile);
if let Some(target) = env::var_os("TARGET") {
cmd.arg("--target").arg(target);
}
// If Cargo wants to set RUSTFLAGS, use that.
if let Ok(rustflags) = env::var("CARGO_ENCODED_RUSTFLAGS") {
if !rustflags.is_empty() {
for arg in rustflags.split('\x1f') {
cmd.arg(arg);
}
}
}
let success = match cmd.status() {
Ok(status) => status.success(),
Err(_) => false,
};
// Clean up to avoid leaving nondeterministic absolute paths in the dep-info
// file in OUT_DIR, which causes nonreproducible builds in build systems
// that treat the entire OUT_DIR as an artifact.
if let Err(err) = fs::remove_dir_all(&out_subdir) {
// libc::ENOTEMPTY
// Some filesystems (NFSv3) have timing issues under load where '.nfs*'
// dummy files can continue to get created for a short period after the
// probe command completes, breaking remove_dir_all.
// To be replaced with ErrorKind::DirectoryNotEmpty (Rust 1.83+).
const ENOTEMPTY: i32 = 39;
if !(err.kind() == ErrorKind::NotFound
|| (cfg!(target_os = "linux") && err.raw_os_error() == Some(ENOTEMPTY)))
{
eprintln!("Failed to clean up {}: {}", out_subdir.display(), err);
process::exit(1);
}
}
success
}
fn rustc_minor_version() -> Option<u32> {
let rustc = cargo_env_var("RUSTC");
let output = Command::new(rustc).arg("--version").output().ok()?;
let version = str::from_utf8(&output.stdout).ok()?;
let mut pieces = version.split('.');
if pieces.next() != Some("rustc 1") {
return None;
}
pieces.next()?.parse().ok()
}
fn cargo_env_var(key: &str) -> OsString {
env::var_os(key).unwrap_or_else(|| {
eprintln!("Environment variable ${key} is not set during execution of build script");
process::exit(1);
})
}
vendor/thiserror/build/probe.rs
Vendored
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// This code exercises the surface area that we expect of the Error generic
// member access API. If the current toolchain is able to compile it, then
// thiserror is able to provide backtrace support.
#![no_std]
#![feature(error_generic_member_access)]
use core::error::{Error, Request};
use core::fmt::{self, Debug, Display};
struct MyError(Thing);
struct Thing;
impl Debug for MyError {
fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
impl Display for MyError {
fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
impl Error for MyError {
fn provide<'a>(&'a self, request: &mut Request<'a>) {
request.provide_ref(&self.0);
}
}
// Include in sccache cache key.
const _: Option<&str> = option_env!("RUSTC_BOOTSTRAP");
vendor/thiserror/rust-toolchain.toml
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+2
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@@ -0,0 +1,2 @@
[toolchain]
components = ["rust-src"]
vendor/thiserror/src/aserror.rs
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+50
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@@ -0,0 +1,50 @@
use core::error::Error;
use core::panic::UnwindSafe;
#[doc(hidden)]
pub trait AsDynError<'a>: Sealed {
fn as_dyn_error(&self) -> &(dyn Error + 'a);
}
impl<'a, T: Error + 'a> AsDynError<'a> for T {
#[inline]
fn as_dyn_error(&self) -> &(dyn Error + 'a) {
self
}
}
impl<'a> AsDynError<'a> for dyn Error + 'a {
#[inline]
fn as_dyn_error(&self) -> &(dyn Error + 'a) {
self
}
}
impl<'a> AsDynError<'a> for dyn Error + Send + 'a {
#[inline]
fn as_dyn_error(&self) -> &(dyn Error + 'a) {
self
}
}
impl<'a> AsDynError<'a> for dyn Error + Send + Sync + 'a {
#[inline]
fn as_dyn_error(&self) -> &(dyn Error + 'a) {
self
}
}
impl<'a> AsDynError<'a> for dyn Error + Send + Sync + UnwindSafe + 'a {
#[inline]
fn as_dyn_error(&self) -> &(dyn Error + 'a) {
self
}
}
#[doc(hidden)]
pub trait Sealed {}
impl<T: Error> Sealed for T {}
impl Sealed for dyn Error + '_ {}
impl Sealed for dyn Error + Send + '_ {}
impl Sealed for dyn Error + Send + Sync + '_ {}
impl Sealed for dyn Error + Send + Sync + UnwindSafe + '_ {}
vendor/thiserror/src/display.rs
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use core::fmt::Display;
#[cfg(feature = "std")]
use std::path::{self, Path, PathBuf};
#[doc(hidden)]
pub trait AsDisplay<'a>: Sealed {
// TODO: convert to generic associated type.
// https://github.com/dtolnay/thiserror/pull/253
type Target: Display;
fn as_display(&'a self) -> Self::Target;
}
impl<'a, T> AsDisplay<'a> for &T
where
T: Display + ?Sized + 'a,
{
type Target = &'a T;
fn as_display(&'a self) -> Self::Target {
*self
}
}
#[cfg(feature = "std")]
impl<'a> AsDisplay<'a> for Path {
type Target = path::Display<'a>;
#[inline]
fn as_display(&'a self) -> Self::Target {
self.display()
}
}
#[cfg(feature = "std")]
impl<'a> AsDisplay<'a> for PathBuf {
type Target = path::Display<'a>;
#[inline]
fn as_display(&'a self) -> Self::Target {
self.display()
}
}
#[doc(hidden)]
pub trait Sealed {}
impl<T: Display + ?Sized> Sealed for &T {}
#[cfg(feature = "std")]
impl Sealed for Path {}
#[cfg(feature = "std")]
impl Sealed for PathBuf {}
// Add a synthetic second impl of AsDisplay to prevent the "single applicable
// impl" rule from making too weird inference decision based on the single impl
// for &T, which could lead to code that compiles with thiserror's std feature
// off but breaks under feature unification when std is turned on by an
// unrelated crate.
#[cfg(not(feature = "std"))]
mod placeholder {
use super::{AsDisplay, Sealed};
use core::fmt::{self, Display};
#[allow(dead_code)]
pub struct Placeholder;
impl<'a> AsDisplay<'a> for Placeholder {
type Target = Self;
#[inline]
fn as_display(&'a self) -> Self::Target {
Placeholder
}
}
impl Display for Placeholder {
fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
unreachable!()
}
}
impl Sealed for Placeholder {}
}
vendor/thiserror/src/lib.rs
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+291
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//! [![github]](https://github.com/dtolnay/thiserror)&ensp;[![crates-io]](https://crates.io/crates/thiserror)&ensp;[![docs-rs]](https://docs.rs/thiserror)
//!
//! [github]: https://img.shields.io/badge/github-8da0cb?style=for-the-badge&labelColor=555555&logo=github
//! [crates-io]: https://img.shields.io/badge/crates.io-fc8d62?style=for-the-badge&labelColor=555555&logo=rust
//! [docs-rs]: https://img.shields.io/badge/docs.rs-66c2a5?style=for-the-badge&labelColor=555555&logo=docs.rs
//!
//! <br>
//!
//! This library provides a convenient derive macro for the standard library's
//! [`std::error::Error`] trait.
//!
//! <br>
//!
//! # Example
//!
//! ```rust
//! # use std::io;
//! use thiserror::Error;
//!
//! #[derive(Error, Debug)]
//! pub enum DataStoreError {
//! #[error("data store disconnected")]
//! Disconnect(#[from] io::Error),
//! #[error("the data for key `{0}` is not available")]
//! Redaction(String),
//! #[error("invalid header (expected {expected:?}, found {found:?})")]
//! InvalidHeader {
//! expected: String,
//! found: String,
//! },
//! #[error("unknown data store error")]
//! Unknown,
//! }
//! ```
//!
//! <br>
//!
//! # Details
//!
//! - Thiserror deliberately does not appear in your public API. You get the
//! same thing as if you had written an implementation of
//! [`std::error::Error`] by hand, and switching from handwritten impls to
//! thiserror or vice versa is not a breaking change.
//!
//! - Errors may be enums, structs with named fields, tuple structs, or unit
//! structs.
//!
//! - A [`Display`] impl is generated for your error if you provide
//! `#[error("...")]` messages on the struct or each variant of your enum, as
//! shown above in the example.
//!
//! The messages support a shorthand for interpolating fields from the error.
//!
//! - `#[error("{var}")]`&ensp;⟶&ensp;`write!("{}", self.var)`
//! - `#[error("{0}")]`&ensp;⟶&ensp;`write!("{}", self.0)`
//! - `#[error("{var:?}")]`&ensp;⟶&ensp;`write!("{:?}", self.var)`
//! - `#[error("{0:?}")]`&ensp;⟶&ensp;`write!("{:?}", self.0)`
//!
//! These shorthands can be used together with any additional format args,
//! which may be arbitrary expressions. For example:
//!
//! ```rust
//! # use core::i32;
//! # use thiserror::Error;
//! #
//! #[derive(Error, Debug)]
//! pub enum Error {
//! #[error("invalid rdo_lookahead_frames {0} (expected < {max})", max = i32::MAX)]
//! InvalidLookahead(u32),
//! }
//! ```
//!
//! If one of the additional expression arguments needs to refer to a field of
//! the struct or enum, then refer to named fields as `.var` and tuple fields
//! as `.0`.
//!
//! ```rust
//! # use thiserror::Error;
//! #
//! # fn first_char(s: &String) -> char {
//! # s.chars().next().unwrap()
//! # }
//! #
//! # #[derive(Debug)]
//! # struct Limits {
//! # lo: usize,
//! # hi: usize,
//! # }
//! #
//! #[derive(Error, Debug)]
//! pub enum Error {
//! #[error("first letter must be lowercase but was {:?}", first_char(.0))]
//! WrongCase(String),
//! #[error("invalid index {idx}, expected at least {} and at most {}", .limits.lo, .limits.hi)]
//! OutOfBounds { idx: usize, limits: Limits },
//! }
//! ```
//!
//! - A [`From`] impl is generated for each variant that contains a `#[from]`
//! attribute.
//!
//! The variant using `#[from]` must not contain any other fields beyond the
//! source error (and possibly a backtrace &mdash; see below). Usually
//! `#[from]` fields are unnamed, but `#[from]` is allowed on a named field
//! too.
//!
//! ```rust
//! # use core::fmt::{self, Display};
//! # use std::io;
//! # use thiserror::Error;
//! #
//! # mod globset {
//! # #[derive(thiserror::Error, Debug)]
//! # #[error("...")]
//! # pub struct Error;
//! # }
//! #
//! #[derive(Error, Debug)]
//! pub enum MyError {
//! Io(#[from] io::Error),
//! Glob(#[from] globset::Error),
//! }
//! #
//! # impl Display for MyError {
//! # fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
//! # unimplemented!()
//! # }
//! # }
//! ```
//!
//! - The Error trait's [`source()`] method is implemented to return whichever
//! field has a `#[source]` attribute or is named `source`, if any. This is
//! for identifying the underlying lower level error that caused your error.
//!
//! The `#[from]` attribute always implies that the same field is `#[source]`,
//! so you don't ever need to specify both attributes.
//!
//! Any error type that implements `std::error::Error` or dereferences to `dyn
//! std::error::Error` will work as a source.
//!
//! ```rust
//! # use core::fmt::{self, Display};
//! # use thiserror::Error;
//! #
//! #[derive(Error, Debug)]
//! pub struct MyError {
//! msg: String,
//! #[source] // optional if field name is `source`
//! source: anyhow::Error,
//! }
//! #
//! # impl Display for MyError {
//! # fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
//! # unimplemented!()
//! # }
//! # }
//! ```
//!
//! - The Error trait's [`provide()`] method is implemented to provide whichever
//! field has a type named `Backtrace`, if any, as a
//! [`std::backtrace::Backtrace`]. Using `Backtrace` in errors requires a
//! nightly compiler with Rust version 1.73 or newer.
//!
//! ```rust
//! # const IGNORE: &str = stringify! {
//! use std::backtrace::Backtrace;
//!
//! #[derive(Error, Debug)]
//! pub struct MyError {
//! msg: String,
//! backtrace: Backtrace, // automatically detected
//! }
//! # };
//! ```
//!
//! - If a field is both a source (named `source`, or has `#[source]` or
//! `#[from]` attribute) *and* is marked `#[backtrace]`, then the Error
//! trait's [`provide()`] method is forwarded to the source's `provide` so
//! that both layers of the error share the same backtrace. The `#[backtrace]`
//! attribute requires a nightly compiler with Rust version 1.73 or newer.
//!
//! ```rust
//! # const IGNORE: &str = stringify! {
//! #[derive(Error, Debug)]
//! pub enum MyError {
//! Io {
//! #[backtrace]
//! source: io::Error,
//! },
//! }
//! # };
//! ```
//!
//! - For variants that use `#[from]` and also contain a `Backtrace` field, a
//! backtrace is captured from within the `From` impl.
//!
//! ```rust
//! # const IGNORE: &str = stringify! {
//! #[derive(Error, Debug)]
//! pub enum MyError {
//! Io {
//! #[from]
//! source: io::Error,
//! backtrace: Backtrace,
//! },
//! }
//! # };
//! ```
//!
//! - Errors may use `error(transparent)` to forward the source and [`Display`]
//! methods straight through to an underlying error without adding an
//! additional message. This would be appropriate for enums that need an
//! "anything else" variant.
//!
//! ```
//! # use thiserror::Error;
//! #
//! #[derive(Error, Debug)]
//! pub enum MyError {
//! # /*
//! ...
//! # */
//!
//! #[error(transparent)]
//! Other(#[from] anyhow::Error), // source and Display delegate to anyhow::Error
//! }
//! ```
//!
//! Another use case is hiding implementation details of an error
//! representation behind an opaque error type, so that the representation is
//! able to evolve without breaking the crate's public API.
//!
//! ```
//! # use thiserror::Error;
//! #
//! // PublicError is public, but opaque and easy to keep compatible.
//! #[derive(Error, Debug)]
//! #[error(transparent)]
//! pub struct PublicError(#[from] ErrorRepr);
//!
//! impl PublicError {
//! // Accessors for anything we do want to expose publicly.
//! }
//!
//! // Private and free to change across minor version of the crate.
//! #[derive(Error, Debug)]
//! enum ErrorRepr {
//! # /*
//! ...
//! # */
//! }
//! ```
//!
//! - See also the [`anyhow`] library for a convenient single error type to use
//! in application code.
//!
//! [`anyhow`]: https://github.com/dtolnay/anyhow
//! [`source()`]: std::error::Error::source
//! [`provide()`]: std::error::Error::provide
//! [`Display`]: std::fmt::Display
#![no_std]
#![doc(html_root_url = "https://docs.rs/thiserror/2.0.18")]
#![allow(
clippy::elidable_lifetime_names,
clippy::module_name_repetitions,
clippy::needless_lifetimes,
clippy::return_self_not_must_use,
clippy::wildcard_imports
)]
#![cfg_attr(error_generic_member_access, feature(error_generic_member_access))]
#[cfg(all(thiserror_nightly_testing, not(error_generic_member_access)))]
compile_error!("Build script probe failed to compile.");
#[cfg(feature = "std")]
extern crate std;
#[cfg(feature = "std")]
extern crate std as core;
mod aserror;
mod display;
#[cfg(error_generic_member_access)]
mod provide;
mod var;
pub use thiserror_impl::*;
mod private;
include!(concat!(env!("OUT_DIR"), "/private.rs"));
vendor/thiserror/src/private.rs
Vendored
+14
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@@ -0,0 +1,14 @@
#[doc(hidden)]
pub use crate::aserror::AsDynError;
#[doc(hidden)]
pub use crate::display::AsDisplay;
#[cfg(error_generic_member_access)]
#[doc(hidden)]
pub use crate::provide::ThiserrorProvide;
#[doc(hidden)]
pub use crate::var::Var;
#[doc(hidden)]
pub use core::error::Error;
#[cfg(all(feature = "std", not(thiserror_no_backtrace_type)))]
#[doc(hidden)]
pub use std::backtrace::Backtrace;
vendor/thiserror/src/provide.rs
Vendored
+20
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@@ -0,0 +1,20 @@
use core::error::{Error, Request};
#[doc(hidden)]
pub trait ThiserrorProvide: Sealed {
fn thiserror_provide<'a>(&'a self, request: &mut Request<'a>);
}
impl<T> ThiserrorProvide for T
where
T: Error + ?Sized,
{
#[inline]
fn thiserror_provide<'a>(&'a self, request: &mut Request<'a>) {
self.provide(request);
}
}
#[doc(hidden)]
pub trait Sealed {}
impl<T: Error + ?Sized> Sealed for T {}
vendor/thiserror/src/var.rs
Vendored
+9
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@@ -0,0 +1,9 @@
use core::fmt::{self, Pointer};
pub struct Var<'a, T: ?Sized>(pub &'a T);
impl<'a, T: Pointer + ?Sized> Pointer for Var<'a, T> {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
Pointer::fmt(self.0, formatter)
}
}
vendor/thiserror/tests/compiletest.rs
Vendored
+7
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@@ -0,0 +1,7 @@
#[rustversion::attr(not(nightly), ignore = "requires nightly")]
#[cfg_attr(miri, ignore = "incompatible with miri")]
#[test]
fn ui() {
let t = trybuild::TestCases::new();
t.compile_fail("tests/ui/*.rs");
}
vendor/thiserror/tests/test_backtrace.rs
Vendored
+289
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@@ -0,0 +1,289 @@
#![cfg(feature = "std")]
#![cfg_attr(thiserror_nightly_testing, feature(error_generic_member_access))]
use thiserror::Error;
#[derive(Error, Debug)]
#[error("...")]
pub struct Inner;
#[cfg(thiserror_nightly_testing)]
#[derive(Error, Debug)]
#[error("...")]
pub struct InnerBacktrace {
backtrace: std::backtrace::Backtrace,
}
#[cfg(thiserror_nightly_testing)]
pub mod structs {
use super::{Inner, InnerBacktrace};
use std::backtrace::Backtrace;
use std::error::{self, Error};
use std::sync::Arc;
use thiserror::Error;
mod not_backtrace {
#[derive(Debug)]
pub struct Backtrace;
}
#[derive(Error, Debug)]
#[error("...")]
pub struct PlainBacktrace {
backtrace: Backtrace,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct ExplicitBacktrace {
#[backtrace]
backtrace: Backtrace,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct NotBacktrace {
backtrace: crate::structs::not_backtrace::r#Backtrace,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct OptBacktrace {
#[backtrace]
backtrace: Option<Backtrace>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct ArcBacktrace {
#[backtrace]
backtrace: Arc<Backtrace>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct BacktraceFrom {
#[from]
source: Inner,
#[backtrace]
backtrace: Backtrace,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct CombinedBacktraceFrom {
#[from]
#[backtrace]
source: InnerBacktrace,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct OptBacktraceFrom {
#[from]
source: Inner,
#[backtrace]
backtrace: Option<Backtrace>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct ArcBacktraceFrom {
#[from]
source: Inner,
#[backtrace]
backtrace: Arc<Backtrace>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct AnyhowBacktrace {
#[backtrace]
source: anyhow::Error,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct BoxDynErrorBacktrace {
#[backtrace]
source: Box<dyn Error>,
}
#[test]
fn test_backtrace() {
let error = PlainBacktrace {
backtrace: Backtrace::capture(),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = ExplicitBacktrace {
backtrace: Backtrace::capture(),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = OptBacktrace {
backtrace: Some(Backtrace::capture()),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = ArcBacktrace {
backtrace: Arc::new(Backtrace::capture()),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = BacktraceFrom::from(Inner);
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = CombinedBacktraceFrom::from(InnerBacktrace {
backtrace: Backtrace::capture(),
});
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = OptBacktraceFrom::from(Inner);
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = ArcBacktraceFrom::from(Inner);
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = AnyhowBacktrace {
source: anyhow::Error::msg("..."),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = BoxDynErrorBacktrace {
source: Box::new(PlainBacktrace {
backtrace: Backtrace::capture(),
}),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
}
}
#[cfg(thiserror_nightly_testing)]
pub mod enums {
use super::{Inner, InnerBacktrace};
use std::backtrace::Backtrace;
use std::error;
use std::sync::Arc;
use thiserror::Error;
#[derive(Error, Debug)]
pub enum PlainBacktrace {
#[error("...")]
Test { backtrace: Backtrace },
}
#[derive(Error, Debug)]
pub enum ExplicitBacktrace {
#[error("...")]
Test {
#[backtrace]
backtrace: Backtrace,
},
}
#[derive(Error, Debug)]
pub enum OptBacktrace {
#[error("...")]
Test {
#[backtrace]
backtrace: Option<Backtrace>,
},
}
#[derive(Error, Debug)]
pub enum ArcBacktrace {
#[error("...")]
Test {
#[backtrace]
backtrace: Arc<Backtrace>,
},
}
#[derive(Error, Debug)]
pub enum BacktraceFrom {
#[error("...")]
Test {
#[from]
source: Inner,
#[backtrace]
backtrace: Backtrace,
},
}
#[derive(Error, Debug)]
pub enum CombinedBacktraceFrom {
#[error("...")]
Test {
#[from]
#[backtrace]
source: InnerBacktrace,
},
}
#[derive(Error, Debug)]
pub enum OptBacktraceFrom {
#[error("...")]
Test {
#[from]
source: Inner,
#[backtrace]
backtrace: Option<Backtrace>,
},
}
#[derive(Error, Debug)]
pub enum ArcBacktraceFrom {
#[error("...")]
Test {
#[from]
source: Inner,
#[backtrace]
backtrace: Arc<Backtrace>,
},
}
#[test]
fn test_backtrace() {
let error = PlainBacktrace::Test {
backtrace: Backtrace::capture(),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = ExplicitBacktrace::Test {
backtrace: Backtrace::capture(),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = OptBacktrace::Test {
backtrace: Some(Backtrace::capture()),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = ArcBacktrace::Test {
backtrace: Arc::new(Backtrace::capture()),
};
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = BacktraceFrom::from(Inner);
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = CombinedBacktraceFrom::from(InnerBacktrace {
backtrace: Backtrace::capture(),
});
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = OptBacktraceFrom::from(Inner);
assert!(error::request_ref::<Backtrace>(&error).is_some());
let error = ArcBacktraceFrom::from(Inner);
assert!(error::request_ref::<Backtrace>(&error).is_some());
}
}
#[test]
#[cfg_attr(
not(thiserror_nightly_testing),
ignore = "requires `--cfg=thiserror_nightly_testing`"
)]
fn test_backtrace() {}
vendor/thiserror/tests/test_display.rs
Vendored
+478
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@@ -0,0 +1,478 @@
#![allow(
clippy::elidable_lifetime_names,
clippy::needless_lifetimes,
clippy::needless_raw_string_hashes,
clippy::trivially_copy_pass_by_ref,
clippy::uninlined_format_args
)]
use core::fmt::{self, Display};
use thiserror::Error;
fn assert<T: Display>(expected: &str, value: T) {
assert_eq!(expected, value.to_string());
}
#[test]
fn test_braced() {
#[derive(Error, Debug)]
#[error("braced error: {msg}")]
struct Error {
msg: String,
}
let msg = "T".to_owned();
assert("braced error: T", Error { msg });
}
#[test]
fn test_braced_unused() {
#[derive(Error, Debug)]
#[error("braced error")]
struct Error {
extra: usize,
}
assert("braced error", Error { extra: 0 });
}
#[test]
fn test_tuple() {
#[derive(Error, Debug)]
#[error("tuple error: {0}")]
struct Error(usize);
assert("tuple error: 0", Error(0));
}
#[test]
fn test_unit() {
#[derive(Error, Debug)]
#[error("unit error")]
struct Error;
assert("unit error", Error);
}
#[test]
fn test_enum() {
#[derive(Error, Debug)]
enum Error {
#[error("braced error: {id}")]
Braced { id: usize },
#[error("tuple error: {0}")]
Tuple(usize),
#[error("unit error")]
Unit,
}
assert("braced error: 0", Error::Braced { id: 0 });
assert("tuple error: 0", Error::Tuple(0));
assert("unit error", Error::Unit);
}
#[test]
fn test_constants() {
#[derive(Error, Debug)]
#[error("{MSG}: {id:?} (code {CODE:?})")]
struct Error {
id: &'static str,
}
const MSG: &str = "failed to do";
const CODE: usize = 9;
assert("failed to do: \"\" (code 9)", Error { id: "" });
}
#[test]
fn test_inherit() {
#[derive(Error, Debug)]
#[error("{0}")]
enum Error {
Some(&'static str),
#[error("other error")]
Other(&'static str),
}
assert("some error", Error::Some("some error"));
assert("other error", Error::Other("..."));
}
#[test]
fn test_brace_escape() {
#[derive(Error, Debug)]
#[error("fn main() {{}}")]
struct Error;
assert("fn main() {}", Error);
}
#[test]
fn test_expr() {
#[derive(Error, Debug)]
#[error("1 + 1 = {}", 1 + 1)]
struct Error;
assert("1 + 1 = 2", Error);
}
#[test]
fn test_nested() {
#[derive(Error, Debug)]
#[error("!bool = {}", not(.0))]
struct Error(bool);
#[allow(clippy::trivially_copy_pass_by_ref)]
fn not(bool: &bool) -> bool {
!*bool
}
assert("!bool = false", Error(true));
}
#[test]
fn test_match() {
#[derive(Error, Debug)]
#[error("{intro}: {0}", intro = match .1 {
Some(n) => format!("error occurred with {}", n),
None => "there was an empty error".to_owned(),
})]
struct Error(String, Option<usize>);
assert(
"error occurred with 1: ...",
Error("...".to_owned(), Some(1)),
);
assert(
"there was an empty error: ...",
Error("...".to_owned(), None),
);
}
#[test]
fn test_nested_display() {
// Same behavior as the one in `test_match`, but without String allocations.
#[derive(Error, Debug)]
#[error("{}", {
struct Msg<'a>(&'a String, &'a Option<usize>);
impl<'a> Display for Msg<'a> {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
match self.1 {
Some(n) => write!(formatter, "error occurred with {}", n),
None => write!(formatter, "there was an empty error"),
}?;
write!(formatter, ": {}", self.0)
}
}
Msg(.0, .1)
})]
struct Error(String, Option<usize>);
assert(
"error occurred with 1: ...",
Error("...".to_owned(), Some(1)),
);
assert(
"there was an empty error: ...",
Error("...".to_owned(), None),
);
}
#[test]
fn test_void() {
#[allow(clippy::empty_enums)]
#[derive(Error, Debug)]
#[error("...")]
pub enum Error {}
let _: Error;
}
#[test]
fn test_mixed() {
#[derive(Error, Debug)]
#[error("a={a} :: b={} :: c={c} :: d={d}", 1, c = 2, d = 3)]
struct Error {
a: usize,
d: usize,
}
assert("a=0 :: b=1 :: c=2 :: d=3", Error { a: 0, d: 0 });
}
#[test]
fn test_ints() {
#[derive(Error, Debug)]
enum Error {
#[error("error {0}")]
Tuple(usize, usize),
#[error("error {0}", '?')]
Struct { v: usize },
}
assert("error 9", Error::Tuple(9, 0));
assert("error ?", Error::Struct { v: 0 });
}
#[test]
fn test_trailing_comma() {
#[derive(Error, Debug)]
#[error(
"error {0}",
)]
#[rustfmt::skip]
struct Error(char);
assert("error ?", Error('?'));
}
#[test]
fn test_field() {
#[derive(Debug)]
struct Inner {
data: usize,
}
#[derive(Error, Debug)]
#[error("{}", .0.data)]
struct Error(Inner);
assert("0", Error(Inner { data: 0 }));
}
#[test]
fn test_nested_tuple_field() {
#[derive(Debug)]
struct Inner(usize);
#[derive(Error, Debug)]
#[error("{}", .0.0)]
struct Error(Inner);
assert("0", Error(Inner(0)));
}
#[test]
fn test_pointer() {
#[derive(Error, Debug)]
#[error("{field:p}")]
pub struct Struct {
field: Box<i32>,
}
let s = Struct {
field: Box::new(-1),
};
assert_eq!(s.to_string(), format!("{:p}", s.field));
}
#[test]
fn test_macro_rules_variant_from_call_site() {
// Regression test for https://github.com/dtolnay/thiserror/issues/86
macro_rules! decl_error {
($variant:ident($value:ident)) => {
#[derive(Error, Debug)]
pub enum Error0 {
#[error("{0:?}")]
$variant($value),
}
#[derive(Error, Debug)]
#[error("{0:?}")]
pub enum Error1 {
$variant($value),
}
};
}
decl_error!(Repro(u8));
assert("0", Error0::Repro(0));
assert("0", Error1::Repro(0));
}
#[test]
fn test_macro_rules_message_from_call_site() {
// Regression test for https://github.com/dtolnay/thiserror/issues/398
macro_rules! decl_error {
($($errors:tt)*) => {
#[derive(Error, Debug)]
pub enum Error {
$($errors)*
}
};
}
decl_error! {
#[error("{0}")]
Unnamed(u8),
#[error("{x}")]
Named { x: u8 },
}
assert("0", Error::Unnamed(0));
assert("0", Error::Named { x: 0 });
}
#[test]
fn test_raw() {
#[derive(Error, Debug)]
#[error("braced raw error: {fn}")]
struct Error {
r#fn: &'static str,
}
assert("braced raw error: T", Error { r#fn: "T" });
}
#[test]
fn test_raw_enum() {
#[derive(Error, Debug)]
enum Error {
#[error("braced raw error: {fn}")]
Braced { r#fn: &'static str },
}
assert("braced raw error: T", Error::Braced { r#fn: "T" });
}
#[test]
fn test_keyword() {
#[derive(Error, Debug)]
#[error("error: {type}", type = 1)]
struct Error;
assert("error: 1", Error);
}
#[test]
fn test_self() {
#[derive(Error, Debug)]
#[error("error: {self:?}")]
struct Error;
assert("error: Error", Error);
}
#[test]
fn test_str_special_chars() {
#[derive(Error, Debug)]
pub enum Error {
#[error("brace left {{")]
BraceLeft,
#[error("brace left 2 \x7B\x7B")]
BraceLeft2,
#[error("brace left 3 \u{7B}\u{7B}")]
BraceLeft3,
#[error("brace right }}")]
BraceRight,
#[error("brace right 2 \x7D\x7D")]
BraceRight2,
#[error("brace right 3 \u{7D}\u{7D}")]
BraceRight3,
#[error(
"new_\
line"
)]
NewLine,
#[error("escape24 \u{78}")]
Escape24,
}
assert("brace left {", Error::BraceLeft);
assert("brace left 2 {", Error::BraceLeft2);
assert("brace left 3 {", Error::BraceLeft3);
assert("brace right }", Error::BraceRight);
assert("brace right 2 }", Error::BraceRight2);
assert("brace right 3 }", Error::BraceRight3);
assert("new_line", Error::NewLine);
assert("escape24 x", Error::Escape24);
}
#[test]
fn test_raw_str() {
#[derive(Error, Debug)]
pub enum Error {
#[error(r#"raw brace left {{"#)]
BraceLeft,
#[error(r#"raw brace left 2 \x7B"#)]
BraceLeft2,
#[error(r#"raw brace right }}"#)]
BraceRight,
#[error(r#"raw brace right 2 \x7D"#)]
BraceRight2,
}
assert(r#"raw brace left {"#, Error::BraceLeft);
assert(r#"raw brace left 2 \x7B"#, Error::BraceLeft2);
assert(r#"raw brace right }"#, Error::BraceRight);
assert(r#"raw brace right 2 \x7D"#, Error::BraceRight2);
}
mod util {
use core::fmt::{self, Octal};
pub fn octal<T: Octal>(value: &T, formatter: &mut fmt::Formatter) -> fmt::Result {
write!(formatter, "0o{:o}", value)
}
}
#[test]
fn test_fmt_path() {
fn unit(formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("unit=")
}
fn pair(k: &i32, v: &i32, formatter: &mut fmt::Formatter) -> fmt::Result {
write!(formatter, "pair={k}:{v}")
}
#[derive(Error, Debug)]
pub enum Error {
#[error(fmt = unit)]
Unit,
#[error(fmt = pair)]
Tuple(i32, i32),
#[error(fmt = pair)]
Entry { k: i32, v: i32 },
#[error(fmt = crate::util::octal)]
I16(i16),
#[error(fmt = crate::util::octal::<i32>)]
I32 { n: i32 },
#[error(fmt = core::fmt::Octal::fmt)]
I64(i64),
#[error("...{0}")]
Other(bool),
}
assert("unit=", Error::Unit);
assert("pair=10:0", Error::Tuple(10, 0));
assert("pair=10:0", Error::Entry { k: 10, v: 0 });
assert("0o777", Error::I16(0o777));
assert("0o777", Error::I32 { n: 0o777 });
assert("777", Error::I64(0o777));
assert("...false", Error::Other(false));
}
#[test]
fn test_fmt_path_inherited() {
#[derive(Error, Debug)]
#[error(fmt = crate::util::octal)]
pub enum Error {
I16(i16),
I32 {
n: i32,
},
#[error(fmt = core::fmt::Octal::fmt)]
I64(i64),
#[error("...{0}")]
Other(bool),
}
assert("0o777", Error::I16(0o777));
assert("0o777", Error::I32 { n: 0o777 });
assert("777", Error::I64(0o777));
assert("...false", Error::Other(false));
}
vendor/thiserror/tests/test_error.rs
Vendored
+56
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@@ -0,0 +1,56 @@
#![allow(dead_code)]
use core::fmt::{self, Display};
use std::io;
use thiserror::Error;
macro_rules! unimplemented_display {
($ty:ty) => {
impl Display for $ty {
fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
};
}
#[derive(Error, Debug)]
struct BracedError {
msg: String,
pos: usize,
}
#[derive(Error, Debug)]
struct TupleError(String, usize);
#[derive(Error, Debug)]
struct UnitError;
#[derive(Error, Debug)]
struct WithSource {
#[source]
cause: io::Error,
}
#[derive(Error, Debug)]
struct WithAnyhow {
#[source]
cause: anyhow::Error,
}
#[derive(Error, Debug)]
enum EnumError {
Braced {
#[source]
cause: io::Error,
},
Tuple(#[source] io::Error),
Unit,
}
unimplemented_display!(BracedError);
unimplemented_display!(TupleError);
unimplemented_display!(UnitError);
unimplemented_display!(WithSource);
unimplemented_display!(WithAnyhow);
unimplemented_display!(EnumError);
vendor/thiserror/tests/test_expr.rs
Vendored
+118
View File
@@ -0,0 +1,118 @@
#![allow(clippy::iter_cloned_collect, clippy::uninlined_format_args)]
use core::fmt::Display;
#[cfg(feature = "std")]
use std::path::PathBuf;
use thiserror::Error;
// Some of the elaborate cases from the rcc codebase, which is a C compiler in
// Rust. https://github.com/jyn514/rcc/blob/0.8.0/src/data/error.rs
#[derive(Error, Debug)]
pub enum CompilerError {
#[error("cannot shift {} by {maximum} or more bits (got {current})", if *.is_left { "left" } else { "right" })]
TooManyShiftBits {
is_left: bool,
maximum: u64,
current: u64,
},
#[error("#error {}", (.0).iter().copied().collect::<Vec<_>>().join(" "))]
User(Vec<&'static str>),
#[error("overflow while parsing {}integer literal",
if let Some(signed) = .is_signed {
if *signed { "signed "} else { "unsigned "}
} else {
""
}
)]
IntegerOverflow { is_signed: Option<bool> },
#[error("overflow while parsing {}integer literal", match .is_signed {
Some(true) => "signed ",
Some(false) => "unsigned ",
None => "",
})]
IntegerOverflow2 { is_signed: Option<bool> },
}
// Examples drawn from Rustup.
#[derive(Error, Debug)]
pub enum RustupError {
#[error(
"toolchain '{name}' does not contain component {component}{}",
.suggestion
.as_ref()
.map_or_else(String::new, |s| format!("; did you mean '{}'?", s)),
)]
UnknownComponent {
name: String,
component: String,
suggestion: Option<String>,
},
}
#[track_caller]
fn assert<T: Display>(expected: &str, value: T) {
assert_eq!(expected, value.to_string());
}
#[test]
fn test_rcc() {
assert(
"cannot shift left by 32 or more bits (got 50)",
CompilerError::TooManyShiftBits {
is_left: true,
maximum: 32,
current: 50,
},
);
assert("#error A B C", CompilerError::User(vec!["A", "B", "C"]));
assert(
"overflow while parsing signed integer literal",
CompilerError::IntegerOverflow {
is_signed: Some(true),
},
);
}
#[test]
fn test_rustup() {
assert(
"toolchain 'nightly' does not contain component clipy; did you mean 'clippy'?",
RustupError::UnknownComponent {
name: "nightly".to_owned(),
component: "clipy".to_owned(),
suggestion: Some("clippy".to_owned()),
},
);
}
// Regression test for https://github.com/dtolnay/thiserror/issues/335
#[cfg(feature = "std")]
#[test]
#[allow(non_snake_case)]
fn test_assoc_type_equality_constraint() {
pub trait Trait<T>: Display {
type A;
}
impl<T> Trait<T> for i32 {
type A = i32;
}
#[derive(Error, Debug)]
#[error("{A} {b}", b = &0 as &dyn Trait<i32, A = i32>)]
pub struct Error {
pub A: PathBuf,
}
assert(
"... 0",
Error {
A: PathBuf::from("..."),
},
);
}
vendor/thiserror/tests/test_from.rs
Vendored
+64
View File
@@ -0,0 +1,64 @@
#![allow(clippy::extra_unused_type_parameters)]
use std::io;
use thiserror::Error;
#[derive(Error, Debug)]
#[error("...")]
pub struct ErrorStruct {
#[from]
source: io::Error,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct ErrorStructOptional {
#[from]
source: Option<io::Error>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct ErrorTuple(#[from] io::Error);
#[derive(Error, Debug)]
#[error("...")]
pub struct ErrorTupleOptional(#[from] Option<io::Error>);
#[derive(Error, Debug)]
#[error("...")]
pub enum ErrorEnum {
Test {
#[from]
source: io::Error,
},
}
#[derive(Error, Debug)]
#[error("...")]
pub enum ErrorEnumOptional {
Test {
#[from]
source: Option<io::Error>,
},
}
#[derive(Error, Debug)]
#[error("...")]
pub enum Many {
Any(#[from] anyhow::Error),
Io(#[from] io::Error),
}
fn assert_impl<T: From<io::Error>>() {}
#[test]
fn test_from() {
assert_impl::<ErrorStruct>();
assert_impl::<ErrorStructOptional>();
assert_impl::<ErrorTuple>();
assert_impl::<ErrorTupleOptional>();
assert_impl::<ErrorEnum>();
assert_impl::<ErrorEnumOptional>();
assert_impl::<Many>();
}
vendor/thiserror/tests/test_generics.rs
Vendored
+205
View File
@@ -0,0 +1,205 @@
#![allow(clippy::needless_late_init, clippy::uninlined_format_args)]
use core::fmt::{self, Debug, Display};
use core::str::FromStr;
use thiserror::Error;
pub struct NoFormat;
#[derive(Debug)]
pub struct DebugOnly;
pub struct DisplayOnly;
impl Display for DisplayOnly {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("display only")
}
}
#[derive(Debug)]
pub struct DebugAndDisplay;
impl Display for DebugAndDisplay {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("debug and display")
}
}
// Should expand to:
//
// impl<E> Display for EnumDebugField<E>
// where
// E: Debug;
//
// impl<E> Error for EnumDebugField<E>
// where
// Self: Debug + Display;
//
#[derive(Error, Debug)]
pub enum EnumDebugGeneric<E> {
#[error("{0:?}")]
FatalError(E),
}
// Should expand to:
//
// impl<E> Display for EnumFromGeneric<E>;
//
// impl<E> Error for EnumFromGeneric<E>
// where
// EnumDebugGeneric<E>: Error + 'static,
// Self: Debug + Display;
//
#[derive(Error, Debug)]
pub enum EnumFromGeneric<E> {
#[error("enum from generic")]
Source(#[from] EnumDebugGeneric<E>),
}
// Should expand to:
//
// impl<HasDisplay, HasDebug, HasNeither> Display
// for EnumCompound<HasDisplay, HasDebug, HasNeither>
// where
// HasDisplay: Display,
// HasDebug: Debug;
//
// impl<HasDisplay, HasDebug, HasNeither> Error
// for EnumCompound<HasDisplay, HasDebug, HasNeither>
// where
// Self: Debug + Display;
//
#[derive(Error)]
pub enum EnumCompound<HasDisplay, HasDebug, HasNeither> {
#[error("{0} {1:?}")]
DisplayDebug(HasDisplay, HasDebug),
#[error("{0}")]
Display(HasDisplay, HasNeither),
#[error("{1:?}")]
Debug(HasNeither, HasDebug),
}
impl<HasDisplay, HasDebug, HasNeither> Debug for EnumCompound<HasDisplay, HasDebug, HasNeither> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("EnumCompound")
}
}
#[test]
fn test_display_enum_compound() {
let mut instance: EnumCompound<DisplayOnly, DebugOnly, NoFormat>;
instance = EnumCompound::DisplayDebug(DisplayOnly, DebugOnly);
assert_eq!(format!("{}", instance), "display only DebugOnly");
instance = EnumCompound::Display(DisplayOnly, NoFormat);
assert_eq!(format!("{}", instance), "display only");
instance = EnumCompound::Debug(NoFormat, DebugOnly);
assert_eq!(format!("{}", instance), "DebugOnly");
}
// Should expand to:
//
// impl<E> Display for EnumTransparentGeneric<E>
// where
// E: Display;
//
// impl<E> Error for EnumTransparentGeneric<E>
// where
// E: Error,
// Self: Debug + Display;
//
#[derive(Error, Debug)]
pub enum EnumTransparentGeneric<E> {
#[error(transparent)]
Other(E),
}
// Should expand to:
//
// impl<E> Display for StructDebugGeneric<E>
// where
// E: Debug;
//
// impl<E> Error for StructDebugGeneric<E>
// where
// Self: Debug + Display;
//
#[derive(Error, Debug)]
#[error("{underlying:?}")]
pub struct StructDebugGeneric<E> {
pub underlying: E,
}
// Should expand to:
//
// impl<E> Error for StructFromGeneric<E>
// where
// StructDebugGeneric<E>: Error + 'static,
// Self: Debug + Display;
//
#[derive(Error, Debug)]
pub struct StructFromGeneric<E> {
#[from]
pub source: StructDebugGeneric<E>,
}
// Should expand to:
//
// impl<E> Display for StructTransparentGeneric<E>
// where
// E: Display;
//
// impl<E> Error for StructTransparentGeneric<E>
// where
// E: Error,
// Self: Debug + Display;
//
#[derive(Error, Debug)]
#[error(transparent)]
pub struct StructTransparentGeneric<E>(pub E);
// Should expand to:
//
// impl<T: FromStr> Display for AssociatedTypeError<T>
// where
// T::Err: Display;
//
// impl<T: FromStr> Error for AssociatedTypeError<T>
// where
// Self: Debug + Display;
//
#[derive(Error, Debug)]
pub enum AssociatedTypeError<T: FromStr> {
#[error("couldn't parse matrix")]
Other,
#[error("couldn't parse entry: {0}")]
EntryParseError(T::Err),
}
// Regression test for https://github.com/dtolnay/thiserror/issues/345
#[test]
fn test_no_bound_on_named_fmt() {
#[derive(Error, Debug)]
#[error("{thing}", thing = "...")]
struct Error<T> {
thing: T,
}
let error = Error { thing: DebugOnly };
assert_eq!(error.to_string(), "...");
}
#[test]
fn test_multiple_bound() {
#[derive(Error, Debug)]
#[error("0x{thing:x} 0x{thing:X}")]
pub struct Error<T> {
thing: T,
}
let error = Error { thing: 0xFFi32 };
assert_eq!(error.to_string(), "0xff 0xFF");
}
vendor/thiserror/tests/test_lints.rs
Vendored
+109
View File
@@ -0,0 +1,109 @@
#![allow(clippy::mixed_attributes_style)]
use thiserror::Error;
pub use std::error::Error;
#[test]
fn test_allow_attributes() {
#![deny(clippy::allow_attributes)]
#[derive(Error, Debug)]
#[error("...")]
pub struct MyError(#[from] anyhow::Error);
let _: MyError;
}
#[test]
fn test_unused_qualifications() {
#![deny(unused_qualifications)]
// Expansion of derive(Error) macro can't know whether something like
// std::error::Error is already imported in the caller's scope so it must
// suppress unused_qualifications.
#[derive(Error, Debug)]
#[error("...")]
pub struct MyError;
let _: MyError;
}
#[test]
fn test_needless_lifetimes() {
#![allow(dead_code)]
#![deny(clippy::elidable_lifetime_names, clippy::needless_lifetimes)]
#[derive(Error, Debug)]
#[error("...")]
pub enum MyError<'a> {
A(#[from] std::io::Error),
B(&'a ()),
}
let _: MyError;
}
#[test]
fn test_forbid_needless_lifetimes() {
#![forbid(clippy::needless_lifetimes)]
#[derive(Error, Debug)]
#[error("...")]
pub struct MyError(#[from] std::io::Error);
let _: MyError;
}
#[test]
fn test_deprecated() {
#![deny(deprecated)]
#[derive(Error, Debug)]
#[deprecated]
#[error("...")]
pub struct DeprecatedStruct;
#[derive(Error, Debug)]
#[error("{message} {}", .message)]
pub struct DeprecatedStructField {
#[deprecated]
message: String,
}
#[derive(Error, Debug)]
#[deprecated]
pub enum DeprecatedEnum {
#[error("...")]
Variant,
}
#[derive(Error, Debug)]
pub enum DeprecatedVariant {
#[deprecated]
#[error("...")]
Variant,
}
#[derive(Error, Debug)]
pub enum DeprecatedFrom {
#[error(transparent)]
Variant(
#[from]
#[allow(deprecated)]
DeprecatedStruct,
),
}
#[allow(deprecated)]
let _: DeprecatedStruct;
#[allow(deprecated)]
let _: DeprecatedStructField;
#[allow(deprecated)]
let _ = DeprecatedEnum::Variant;
#[allow(deprecated)]
let _ = DeprecatedVariant::Variant;
#[allow(deprecated)]
let _ = DeprecatedFrom::Variant(DeprecatedStruct);
}
vendor/thiserror/tests/test_option.rs
Vendored
+109
View File
@@ -0,0 +1,109 @@
#![cfg(feature = "std")]
#![cfg_attr(thiserror_nightly_testing, feature(error_generic_member_access))]
#[cfg(thiserror_nightly_testing)]
pub mod structs {
use std::backtrace::Backtrace;
use thiserror::Error;
#[derive(Error, Debug)]
#[error("...")]
pub struct OptSourceNoBacktrace {
#[source]
pub source: Option<anyhow::Error>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct OptSourceAlwaysBacktrace {
#[source]
pub source: Option<anyhow::Error>,
pub backtrace: Backtrace,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct NoSourceOptBacktrace {
#[backtrace]
pub backtrace: Option<Backtrace>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct AlwaysSourceOptBacktrace {
pub source: anyhow::Error,
#[backtrace]
pub backtrace: Option<Backtrace>,
}
#[derive(Error, Debug)]
#[error("...")]
pub struct OptSourceOptBacktrace {
#[source]
pub source: Option<anyhow::Error>,
#[backtrace]
pub backtrace: Option<Backtrace>,
}
}
#[cfg(thiserror_nightly_testing)]
pub mod enums {
use std::backtrace::Backtrace;
use thiserror::Error;
#[derive(Error, Debug)]
pub enum OptSourceNoBacktrace {
#[error("...")]
Test {
#[source]
source: Option<anyhow::Error>,
},
}
#[derive(Error, Debug)]
pub enum OptSourceAlwaysBacktrace {
#[error("...")]
Test {
#[source]
source: Option<anyhow::Error>,
backtrace: Backtrace,
},
}
#[derive(Error, Debug)]
pub enum NoSourceOptBacktrace {
#[error("...")]
Test {
#[backtrace]
backtrace: Option<Backtrace>,
},
}
#[derive(Error, Debug)]
pub enum AlwaysSourceOptBacktrace {
#[error("...")]
Test {
source: anyhow::Error,
#[backtrace]
backtrace: Option<Backtrace>,
},
}
#[derive(Error, Debug)]
pub enum OptSourceOptBacktrace {
#[error("...")]
Test {
#[source]
source: Option<anyhow::Error>,
#[backtrace]
backtrace: Option<Backtrace>,
},
}
}
#[test]
#[cfg_attr(
not(thiserror_nightly_testing),
ignore = "requires `--cfg=thiserror_nightly_testing`"
)]
fn test_option() {}
vendor/thiserror/tests/test_path.rs
Vendored
+54
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@@ -0,0 +1,54 @@
#![cfg(feature = "std")]
use core::fmt::Display;
use ref_cast::RefCast;
use std::path::{Path, PathBuf};
use thiserror::Error;
#[derive(Error, Debug)]
#[error("failed to read '{file}'")]
struct StructPathBuf {
file: PathBuf,
}
#[derive(Error, Debug, RefCast)]
#[repr(C)]
#[error("failed to read '{file}'")]
struct StructPath {
file: Path,
}
#[derive(Error, Debug)]
enum EnumPathBuf {
#[error("failed to read '{0}'")]
Read(PathBuf),
}
#[derive(Error, Debug)]
#[error("{tail}")]
pub struct UnsizedError {
pub head: i32,
pub tail: str,
}
#[derive(Error, Debug)]
pub enum BothError {
#[error("display:{0} debug:{0:?}")]
DisplayDebug(PathBuf),
#[error("debug:{0:?} display:{0}")]
DebugDisplay(PathBuf),
}
fn assert<T: Display>(expected: &str, value: T) {
assert_eq!(expected, value.to_string());
}
#[test]
fn test_display() {
let path = Path::new("/thiserror");
let file = path.to_owned();
assert("failed to read '/thiserror'", StructPathBuf { file });
let file = path.to_owned();
assert("failed to read '/thiserror'", EnumPathBuf::Read(file));
assert("failed to read '/thiserror'", StructPath::ref_cast(path));
}
vendor/thiserror/tests/test_source.rs
Vendored
+82
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@@ -0,0 +1,82 @@
use std::error::Error as StdError;
use std::io;
use thiserror::Error;
#[derive(Error, Debug)]
#[error("implicit source")]
pub struct ImplicitSource {
source: io::Error,
}
#[derive(Error, Debug)]
#[error("explicit source")]
pub struct ExplicitSource {
source: String,
#[source]
io: io::Error,
}
#[derive(Error, Debug)]
#[error("boxed source")]
pub struct BoxedSource {
#[source]
source: Box<dyn StdError + Send + 'static>,
}
#[test]
fn test_implicit_source() {
let io = io::Error::new(io::ErrorKind::Other, "oh no!");
let error = ImplicitSource { source: io };
error.source().unwrap().downcast_ref::<io::Error>().unwrap();
}
#[test]
fn test_explicit_source() {
let io = io::Error::new(io::ErrorKind::Other, "oh no!");
let error = ExplicitSource {
source: String::new(),
io,
};
error.source().unwrap().downcast_ref::<io::Error>().unwrap();
}
#[test]
fn test_boxed_source() {
let source = Box::new(io::Error::new(io::ErrorKind::Other, "oh no!"));
let error = BoxedSource { source };
error.source().unwrap().downcast_ref::<io::Error>().unwrap();
}
macro_rules! error_from_macro {
($($variants:tt)*) => {
#[derive(Error)]
#[derive(Debug)]
pub enum MacroSource {
$($variants)*
}
}
}
// Test that we generate impls with the proper hygiene
#[rustfmt::skip]
error_from_macro! {
#[error("Something")]
Variant(#[from] io::Error)
}
#[test]
fn test_not_source() {
#[derive(Error, Debug)]
#[error("{source} ==> {destination}")]
pub struct NotSource {
r#source: char,
destination: char,
}
let error = NotSource {
source: 'S',
destination: 'D',
};
assert_eq!(error.to_string(), "S ==> D");
assert!(error.source().is_none());
}
vendor/thiserror/tests/test_transparent.rs
Vendored
+96
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@@ -0,0 +1,96 @@
use anyhow::anyhow;
use std::error::Error as _;
use std::io;
use thiserror::Error;
#[test]
fn test_transparent_struct() {
#[derive(Error, Debug)]
#[error(transparent)]
struct Error(ErrorKind);
#[derive(Error, Debug)]
enum ErrorKind {
#[error("E0")]
E0,
#[error("E1")]
E1(#[from] io::Error),
}
let error = Error(ErrorKind::E0);
assert_eq!("E0", error.to_string());
assert!(error.source().is_none());
let io = io::Error::new(io::ErrorKind::Other, "oh no!");
let error = Error(ErrorKind::from(io));
assert_eq!("E1", error.to_string());
error.source().unwrap().downcast_ref::<io::Error>().unwrap();
}
#[test]
fn test_transparent_enum() {
#[derive(Error, Debug)]
enum Error {
#[error("this failed")]
This,
#[error(transparent)]
Other(anyhow::Error),
}
let error = Error::This;
assert_eq!("this failed", error.to_string());
let error = Error::Other(anyhow!("inner").context("outer"));
assert_eq!("outer", error.to_string());
assert_eq!("inner", error.source().unwrap().to_string());
}
#[test]
fn test_transparent_enum_with_default_message() {
#[derive(Error, Debug)]
#[error("this failed: {0}_{1}")]
enum Error {
This(i32, i32),
#[error(transparent)]
Other(anyhow::Error),
}
let error = Error::This(-1, -1);
assert_eq!("this failed: -1_-1", error.to_string());
let error = Error::Other(anyhow!("inner").context("outer"));
assert_eq!("outer", error.to_string());
assert_eq!("inner", error.source().unwrap().to_string());
}
#[test]
fn test_anyhow() {
#[derive(Error, Debug)]
#[error(transparent)]
struct Any(#[from] anyhow::Error);
let error = Any::from(anyhow!("inner").context("outer"));
assert_eq!("outer", error.to_string());
assert_eq!("inner", error.source().unwrap().to_string());
}
#[test]
fn test_non_static() {
#[derive(Error, Debug)]
#[error(transparent)]
struct Error<'a> {
inner: ErrorKind<'a>,
}
#[derive(Error, Debug)]
enum ErrorKind<'a> {
#[error("unexpected token: {:?}", token)]
Unexpected { token: &'a str },
}
let error = Error {
inner: ErrorKind::Unexpected { token: "error" },
};
assert_eq!("unexpected token: \"error\"", error.to_string());
assert!(error.source().is_none());
}
vendor/thiserror/tests/ui/bad-field-attr.rs
Vendored
+7
View File
@@ -0,0 +1,7 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(transparent)]
pub struct Error(#[error(transparent)] std::io::Error);
fn main() {}
vendor/thiserror/tests/ui/bad-field-attr.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: #[error(transparent)] needs to go outside the enum or struct, not on an individual field
--> tests/ui/bad-field-attr.rs:5:18
|
5 | pub struct Error(#[error(transparent)] std::io::Error);
| ^^^^^^^^^^^^^^^^^^^^^
vendor/thiserror/tests/ui/concat-display.rs
Vendored
+15
View File
@@ -0,0 +1,15 @@
use thiserror::Error;
macro_rules! error_type {
($name:ident, $what:expr) => {
// Use #[error("invalid {}", $what)] instead.
#[derive(Error, Debug)]
#[error(concat!("invalid ", $what))]
pub struct $name;
};
}
error_type!(Error, "foo");
fn main() {}
vendor/thiserror/tests/ui/concat-display.stderr
Vendored
+10
View File
@@ -0,0 +1,10 @@
error: expected one of: string literal, `transparent`, `fmt`
--> tests/ui/concat-display.rs:8:17
|
8 | #[error(concat!("invalid ", $what))]
| ^^^^^^
...
13 | error_type!(Error, "foo");
| ------------------------- in this macro invocation
|
= note: this error originates in the macro `error_type` (in Nightly builds, run with -Z macro-backtrace for more info)
vendor/thiserror/tests/ui/display-underscore.rs
Vendored
+7
View File
@@ -0,0 +1,7 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error("{_}")]
pub struct Error;
fn main() {}
vendor/thiserror/tests/ui/display-underscore.stderr
Vendored
+7
View File
@@ -0,0 +1,7 @@
error: invalid format string: invalid argument name `_`
--> tests/ui/display-underscore.rs:4:11
|
4 | #[error("{_}")]
| ^ invalid argument name in format string
|
= note: argument name cannot be a single underscore
vendor/thiserror/tests/ui/duplicate-enum-source.rs
Vendored
+13
View File
@@ -0,0 +1,13 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum ErrorEnum {
Confusing {
#[source]
a: std::io::Error,
#[source]
b: anyhow::Error,
},
}
fn main() {}
vendor/thiserror/tests/ui/duplicate-enum-source.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: duplicate #[source] attribute
--> tests/ui/duplicate-enum-source.rs:8:9
|
8 | #[source]
| ^^^^^^^^^
vendor/thiserror/tests/ui/duplicate-fmt.rs
Vendored
+23
View File
@@ -0,0 +1,23 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error("...")]
#[error("...")]
pub struct Error;
#[derive(Error, Debug)]
#[error(fmt = core::fmt::Octal::fmt)]
#[error(fmt = core::fmt::LowerHex::fmt)]
pub enum FmtFmt {}
#[derive(Error, Debug)]
#[error(fmt = core::fmt::Octal::fmt)]
#[error(transparent)]
pub enum FmtTransparent {}
#[derive(Error, Debug)]
#[error(fmt = core::fmt::Octal::fmt)]
#[error("...")]
pub enum FmtDisplay {}
fn main() {}
vendor/thiserror/tests/ui/duplicate-fmt.stderr
Vendored
+23
View File
@@ -0,0 +1,23 @@
error: only one #[error(...)] attribute is allowed
--> tests/ui/duplicate-fmt.rs:5:1
|
5 | #[error("...")]
| ^^^^^^^^^^^^^^^
error: duplicate #[error(fmt = ...)] attribute
--> tests/ui/duplicate-fmt.rs:10:1
|
10 | #[error(fmt = core::fmt::LowerHex::fmt)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: cannot have both #[error(transparent)] and #[error(fmt = ...)]
--> tests/ui/duplicate-fmt.rs:14:1
|
14 | #[error(fmt = core::fmt::Octal::fmt)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: cannot have both #[error(fmt = ...)] and a format arguments attribute
--> tests/ui/duplicate-fmt.rs:20:1
|
20 | #[error("...")]
| ^^^^^^^^^^^^^^^
vendor/thiserror/tests/ui/duplicate-struct-source.rs
Vendored
+11
View File
@@ -0,0 +1,11 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub struct ErrorStruct {
#[source]
a: std::io::Error,
#[source]
b: anyhow::Error,
}
fn main() {}
vendor/thiserror/tests/ui/duplicate-struct-source.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: duplicate #[source] attribute
--> tests/ui/duplicate-struct-source.rs:7:5
|
7 | #[source]
| ^^^^^^^^^
vendor/thiserror/tests/ui/duplicate-transparent.rs
Vendored
+8
View File
@@ -0,0 +1,8 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(transparent)]
#[error(transparent)]
pub struct Error(anyhow::Error);
fn main() {}
vendor/thiserror/tests/ui/duplicate-transparent.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: duplicate #[error(transparent)] attribute
--> tests/ui/duplicate-transparent.rs:5:1
|
5 | #[error(transparent)]
| ^^^^^^^^^^^^^^^^^^^^^
vendor/thiserror/tests/ui/expression-fallback.rs
Vendored
+7
View File
@@ -0,0 +1,7 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error("".yellow)]
pub struct ArgError;
fn main() {}
vendor/thiserror/tests/ui/expression-fallback.stderr
Vendored
+24
View File
@@ -0,0 +1,24 @@
error: expected `,`, found `.`
--> tests/ui/expression-fallback.rs:4:11
|
4 | #[error("".yellow)]
| ^ expected `,`
error: argument never used
--> tests/ui/expression-fallback.rs:4:12
|
4 | #[error("".yellow)]
| -- ^^^^^^ argument never used
| |
| formatting specifier missing
|
help: format specifiers use curly braces, consider adding a format specifier
|
4 | #[error("{}".yellow)]
| ++
error[E0425]: cannot find value `yellow` in this scope
--> tests/ui/expression-fallback.rs:4:12
|
4 | #[error("".yellow)]
| ^^^^^^ not found in this scope
vendor/thiserror/tests/ui/fallback-impl-with-display.rs
Vendored
+14
View File
@@ -0,0 +1,14 @@
use core::fmt::{self, Display};
use thiserror::Error;
#[derive(Error, Debug)]
#[error]
pub struct MyError;
impl Display for MyError {
fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
fn main() {}
vendor/thiserror/tests/ui/fallback-impl-with-display.stderr
Vendored
+16
View File
@@ -0,0 +1,16 @@
error: expected attribute arguments in parentheses: #[error(...)]
--> tests/ui/fallback-impl-with-display.rs:5:3
|
5 | #[error]
| ^^^^^
error[E0119]: conflicting implementations of trait `std::fmt::Display` for type `MyError`
--> tests/ui/fallback-impl-with-display.rs:4:10
|
4 | #[derive(Error, Debug)]
| ^^^^^ conflicting implementation for `MyError`
...
8 | impl Display for MyError {
| ------------------------ first implementation here
|
= note: this error originates in the derive macro `Error` (in Nightly builds, run with -Z macro-backtrace for more info)
vendor/thiserror/tests/ui/from-backtrace-backtrace.rs
Vendored
+15
View File
@@ -0,0 +1,15 @@
// https://github.com/dtolnay/thiserror/issues/163
use std::backtrace::Backtrace;
use thiserror::Error;
#[derive(Error, Debug)]
#[error("...")]
pub struct Error(
#[from]
#[backtrace]
std::io::Error,
Backtrace,
);
fn main() {}
vendor/thiserror/tests/ui/from-backtrace-backtrace.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: deriving From requires no fields other than source and backtrace
--> tests/ui/from-backtrace-backtrace.rs:9:5
|
9 | #[from]
| ^^^^^^^
vendor/thiserror/tests/ui/from-not-source.rs
Vendored
+11
View File
@@ -0,0 +1,11 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub struct Error {
#[source]
source: std::io::Error,
#[from]
other: anyhow::Error,
}
fn main() {}
vendor/thiserror/tests/ui/from-not-source.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: #[from] is only supported on the source field, not any other field
--> tests/ui/from-not-source.rs:7:5
|
7 | #[from]
| ^^^^^^^
vendor/thiserror/tests/ui/invalid-input-impl-anyway.rs
Vendored
+11
View File
@@ -0,0 +1,11 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error]
pub struct MyError;
fn main() {
// No error on the following line. Thiserror emits an Error impl despite the
// bad attribute.
_ = &MyError as &dyn std::error::Error;
}
vendor/thiserror/tests/ui/invalid-input-impl-anyway.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: expected attribute arguments in parentheses: #[error(...)]
--> tests/ui/invalid-input-impl-anyway.rs:4:3
|
4 | #[error]
| ^^^^^
vendor/thiserror/tests/ui/lifetime.rs
Vendored
+24
View File
@@ -0,0 +1,24 @@
use core::fmt::Debug;
use thiserror::Error;
#[derive(Error, Debug)]
#[error("error")]
struct Error<'a>(#[from] Inner<'a>);
#[derive(Error, Debug)]
#[error("{0}")]
struct Inner<'a>(&'a str);
#[derive(Error, Debug)]
enum Enum<'a> {
#[error("error")]
Foo(#[from] Generic<&'a str>),
}
#[derive(Error, Debug)]
#[error("{0:?}")]
struct Generic<T: Debug>(T);
fn main() -> Result<(), Error<'static>> {
Err(Error(Inner("some text")))
}
vendor/thiserror/tests/ui/lifetime.stderr
Vendored
+11
View File
@@ -0,0 +1,11 @@
error: non-static lifetimes are not allowed in the source of an error, because std::error::Error requires the source is dyn Error + 'static
--> tests/ui/lifetime.rs:6:26
|
6 | struct Error<'a>(#[from] Inner<'a>);
| ^^^^^^^^^
error: non-static lifetimes are not allowed in the source of an error, because std::error::Error requires the source is dyn Error + 'static
--> tests/ui/lifetime.rs:15:17
|
15 | Foo(#[from] Generic<&'a str>),
| ^^^^^^^^^^^^^^^^
vendor/thiserror/tests/ui/missing-display.rs
Vendored
+9
View File
@@ -0,0 +1,9 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum MyError {
First,
Second,
}
fn main() {}
vendor/thiserror/tests/ui/missing-display.stderr
Vendored
+19
View File
@@ -0,0 +1,19 @@
error[E0277]: `MyError` doesn't implement `std::fmt::Display`
--> tests/ui/missing-display.rs:4:10
|
3 | #[derive(Error, Debug)]
| ----- in this derive macro expansion
4 | pub enum MyError {
| ^^^^^^^ unsatisfied trait bound
|
help: the trait `std::fmt::Display` is not implemented for `MyError`
--> tests/ui/missing-display.rs:4:1
|
4 | pub enum MyError {
| ^^^^^^^^^^^^^^^^
note: required by a bound in `std::error::Error`
--> $RUST/core/src/error.rs
|
| pub trait Error: Debug + Display {
| ^^^^^^^ required by this bound in `Error`
= note: this error originates in the derive macro `Error` (in Nightly builds, run with -Z macro-backtrace for more info)
vendor/thiserror/tests/ui/missing-fmt.rs
Vendored
+10
View File
@@ -0,0 +1,10 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error("...")]
A(usize),
B(usize),
}
fn main() {}
vendor/thiserror/tests/ui/missing-fmt.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: missing #[error("...")] display attribute
--> tests/ui/missing-fmt.rs:7:5
|
7 | B(usize),
| ^^^^^^^^
vendor/thiserror/tests/ui/no-display.rs
Vendored
+18
View File
@@ -0,0 +1,18 @@
use thiserror::Error;
#[derive(Debug)]
struct NoDisplay;
#[derive(Error, Debug)]
#[error("thread: {thread}")]
pub struct Error {
thread: NoDisplay,
}
#[derive(Error, Debug)]
#[error("thread: {thread:o}")]
pub struct ErrorOctal {
thread: NoDisplay,
}
fn main() {}
vendor/thiserror/tests/ui/no-display.stderr
Vendored
+46
View File
@@ -0,0 +1,46 @@
error[E0599]: the method `as_display` exists for reference `&NoDisplay`, but its trait bounds were not satisfied
--> tests/ui/no-display.rs:7:9
|
4 | struct NoDisplay;
| ---------------- doesn't satisfy `NoDisplay: std::fmt::Display`
...
7 | #[error("thread: {thread}")]
| ^^^^^^^^^^^^^^^^^^ method cannot be called on `&NoDisplay` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`NoDisplay: std::fmt::Display`
which is required by `&NoDisplay: AsDisplay<'_>`
note: the trait `std::fmt::Display` must be implemented
--> $RUST/core/src/fmt/mod.rs
|
| pub trait Display: PointeeSized {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following trait defines an item `as_display`, perhaps you need to implement it:
candidate #1: `AsDisplay`
error[E0277]: the trait bound `NoDisplay: Octal` is not satisfied
--> tests/ui/no-display.rs:13:9
|
12 | #[derive(Error, Debug)]
| ----- in this derive macro expansion
13 | #[error("thread: {thread:o}")]
| ^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
|
help: the trait `Octal` is not implemented for `NoDisplay`
--> tests/ui/no-display.rs:4:1
|
4 | struct NoDisplay;
| ^^^^^^^^^^^^^^^^
= help: the following other types implement trait `Octal`:
&T
&mut T
NonZero<T>
Saturating<T>
Wrapping<T>
i128
i16
i32
and $N others
= note: required for `&NoDisplay` to implement `Octal`
= note: this error originates in the macro `$crate::format_args` which comes from the expansion of the derive macro `Error` (in Nightly builds, run with -Z macro-backtrace for more info)
vendor/thiserror/tests/ui/numbered-positional-tuple.rs
Vendored
+7
View File
@@ -0,0 +1,7 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error("invalid rdo_lookahead_frames {0} (expected < {})", i32::MAX)]
pub struct Error(u32);
fn main() {}
vendor/thiserror/tests/ui/numbered-positional-tuple.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: ambiguous reference to positional arguments by number in a tuple struct; change this to a named argument
--> tests/ui/numbered-positional-tuple.rs:4:61
|
4 | #[error("invalid rdo_lookahead_frames {0} (expected < {})", i32::MAX)]
| ^^^^^^^^
vendor/thiserror/tests/ui/raw-identifier.rs
Vendored
+12
View File
@@ -0,0 +1,12 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error("error: {r#fn}")]
pub struct Error {
r#fn: &'static str,
}
fn main() {
let r#fn = "...";
let _ = format!("error: {r#fn}");
}
vendor/thiserror/tests/ui/raw-identifier.stderr
Vendored
+21
View File
@@ -0,0 +1,21 @@
error: invalid format string: raw identifiers are not supported
--> tests/ui/raw-identifier.rs:4:18
|
4 | #[error("error: {r#fn}")]
| --^^
| |
| raw identifier used here in format string
| help: remove the `r#`
|
= note: identifiers in format strings can be keywords and don't need to be prefixed with `r#`
error: invalid format string: raw identifiers are not supported
--> tests/ui/raw-identifier.rs:11:30
|
11 | let _ = format!("error: {r#fn}");
| --^^
| |
| raw identifier used here in format string
| help: remove the `r#`
|
= note: identifiers in format strings can be keywords and don't need to be prefixed with `r#`
vendor/thiserror/tests/ui/same-from-type.rs
Vendored
+11
View File
@@ -0,0 +1,11 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error("failed to open")]
OpenFile(#[from] std::io::Error),
#[error("failed to close")]
CloseFile(#[from] std::io::Error),
}
fn main() {}
vendor/thiserror/tests/ui/same-from-type.stderr
Vendored
+8
View File
@@ -0,0 +1,8 @@
error[E0119]: conflicting implementations of trait `From<std::io::Error>` for type `Error`
--> tests/ui/same-from-type.rs:8:15
|
6 | OpenFile(#[from] std::io::Error),
| ------- first implementation here
7 | #[error("failed to close")]
8 | CloseFile(#[from] std::io::Error),
| ^^^^^^^ conflicting implementation for `Error`
vendor/thiserror/tests/ui/source-enum-not-error.rs
Vendored
+12
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@@ -0,0 +1,12 @@
use thiserror::Error;
#[derive(Debug)]
pub struct NotError;
#[derive(Error, Debug)]
#[error("...")]
pub enum ErrorEnum {
Broken { source: NotError },
}
fn main() {}
vendor/thiserror/tests/ui/source-enum-not-error.stderr
Vendored
+22
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@@ -0,0 +1,22 @@
error[E0599]: the method `as_dyn_error` exists for reference `&NotError`, but its trait bounds were not satisfied
--> tests/ui/source-enum-not-error.rs:9:14
|
4 | pub struct NotError;
| ------------------- doesn't satisfy `NotError: AsDynError<'_>` or `NotError: std::error::Error`
...
9 | Broken { source: NotError },
| ^^^^^^ method cannot be called on `&NotError` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`NotError: std::error::Error`
which is required by `NotError: AsDynError<'_>`
`&NotError: std::error::Error`
which is required by `&NotError: AsDynError<'_>`
note: the trait `std::error::Error` must be implemented
--> $RUST/core/src/error.rs
|
| pub trait Error: Debug + Display {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following trait defines an item `as_dyn_error`, perhaps you need to implement it:
candidate #1: `AsDynError`
vendor/thiserror/tests/ui/source-enum-unnamed-field-not-error.rs
Vendored
+12
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@@ -0,0 +1,12 @@
use thiserror::Error;
#[derive(Debug)]
pub struct NotError;
#[derive(Error, Debug)]
#[error("...")]
pub enum ErrorEnum {
Broken(#[source] NotError),
}
fn main() {}
vendor/thiserror/tests/ui/source-enum-unnamed-field-not-error.stderr
Vendored
+22
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@@ -0,0 +1,22 @@
error[E0599]: the method `as_dyn_error` exists for reference `&NotError`, but its trait bounds were not satisfied
--> tests/ui/source-enum-unnamed-field-not-error.rs:9:12
|
4 | pub struct NotError;
| ------------------- doesn't satisfy `NotError: AsDynError<'_>` or `NotError: std::error::Error`
...
9 | Broken(#[source] NotError),
| ^^^^^^^^^ method cannot be called on `&NotError` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`NotError: std::error::Error`
which is required by `NotError: AsDynError<'_>`
`&NotError: std::error::Error`
which is required by `&NotError: AsDynError<'_>`
note: the trait `std::error::Error` must be implemented
--> $RUST/core/src/error.rs
|
| pub trait Error: Debug + Display {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following trait defines an item `as_dyn_error`, perhaps you need to implement it:
candidate #1: `AsDynError`
vendor/thiserror/tests/ui/source-struct-not-error.rs
Vendored
+12
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@@ -0,0 +1,12 @@
use thiserror::Error;
#[derive(Debug)]
struct NotError;
#[derive(Error, Debug)]
#[error("...")]
pub struct ErrorStruct {
source: NotError,
}
fn main() {}
vendor/thiserror/tests/ui/source-struct-not-error.stderr
Vendored
+20
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@@ -0,0 +1,20 @@
error[E0599]: the method `as_dyn_error` exists for struct `NotError`, but its trait bounds were not satisfied
--> tests/ui/source-struct-not-error.rs:9:5
|
4 | struct NotError;
| --------------- method `as_dyn_error` not found for this struct because it doesn't satisfy `NotError: AsDynError<'_>` or `NotError: std::error::Error`
...
9 | source: NotError,
| ^^^^^^ method cannot be called on `NotError` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`NotError: std::error::Error`
which is required by `NotError: AsDynError<'_>`
note: the trait `std::error::Error` must be implemented
--> $RUST/core/src/error.rs
|
| pub trait Error: Debug + Display {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following trait defines an item `as_dyn_error`, perhaps you need to implement it:
candidate #1: `AsDynError`
vendor/thiserror/tests/ui/source-struct-unnamed-field-not-error.rs
Vendored
+10
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@@ -0,0 +1,10 @@
use thiserror::Error;
#[derive(Debug)]
struct NotError;
#[derive(Error, Debug)]
#[error("...")]
pub struct ErrorStruct(#[source] NotError);
fn main() {}
vendor/thiserror/tests/ui/source-struct-unnamed-field-not-error.stderr
Vendored
+20
View File
@@ -0,0 +1,20 @@
error[E0599]: the method `as_dyn_error` exists for struct `NotError`, but its trait bounds were not satisfied
--> tests/ui/source-struct-unnamed-field-not-error.rs:8:24
|
4 | struct NotError;
| --------------- method `as_dyn_error` not found for this struct because it doesn't satisfy `NotError: AsDynError<'_>` or `NotError: std::error::Error`
...
8 | pub struct ErrorStruct(#[source] NotError);
| ^^^^^^^^^ method cannot be called on `NotError` due to unsatisfied trait bounds
|
= note: the following trait bounds were not satisfied:
`NotError: std::error::Error`
which is required by `NotError: AsDynError<'_>`
note: the trait `std::error::Error` must be implemented
--> $RUST/core/src/error.rs
|
| pub trait Error: Debug + Display {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= help: items from traits can only be used if the trait is implemented and in scope
= note: the following trait defines an item `as_dyn_error`, perhaps you need to implement it:
candidate #1: `AsDynError`
vendor/thiserror/tests/ui/struct-with-fmt.rs
Vendored
+7
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@@ -0,0 +1,7 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(fmt = core::fmt::Octal::fmt)]
pub struct Error(i32);
fn main() {}
vendor/thiserror/tests/ui/struct-with-fmt.stderr
Vendored
+5
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@@ -0,0 +1,5 @@
error: #[error(fmt = ...)] is only supported in enums; for a struct, handwrite your own Display impl
--> tests/ui/struct-with-fmt.rs:4:1
|
4 | #[error(fmt = core::fmt::Octal::fmt)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
vendor/thiserror/tests/ui/transparent-display.rs
Vendored
+8
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@@ -0,0 +1,8 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(transparent)]
#[error("...")]
pub struct Error(anyhow::Error);
fn main() {}
vendor/thiserror/tests/ui/transparent-display.stderr
Vendored
+5
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@@ -0,0 +1,5 @@
error: cannot have both #[error(transparent)] and a display attribute
--> tests/ui/transparent-display.rs:5:1
|
5 | #[error("...")]
| ^^^^^^^^^^^^^^^
vendor/thiserror/tests/ui/transparent-enum-many.rs
Vendored
+9
View File
@@ -0,0 +1,9 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error(transparent)]
Other(anyhow::Error, String),
}
fn main() {}
vendor/thiserror/tests/ui/transparent-enum-many.stderr
Vendored
+6
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@@ -0,0 +1,6 @@
error: #[error(transparent)] requires exactly one field
--> tests/ui/transparent-enum-many.rs:5:5
|
5 | / #[error(transparent)]
6 | | Other(anyhow::Error, String),
| |________________________________^
vendor/thiserror/tests/ui/transparent-enum-not-error.rs
Vendored
+9
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@@ -0,0 +1,9 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error(transparent)]
Other { message: String },
}
fn main() {}
vendor/thiserror/tests/ui/transparent-enum-not-error.stderr
Vendored
+20
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@@ -0,0 +1,20 @@
error[E0599]: the method `as_dyn_error` exists for reference `&String`, but its trait bounds were not satisfied
--> tests/ui/transparent-enum-not-error.rs:5:13
|
5 | #[error(transparent)]
| ^^^^^^^^^^^ method cannot be called on `&String` due to unsatisfied trait bounds
|
::: $RUST/alloc/src/string.rs
|
| pub struct String {
| ----------------- doesn't satisfy `String: AsDynError<'_>` or `String: std::error::Error`
|
= note: the following trait bounds were not satisfied:
`String: std::error::Error`
which is required by `String: AsDynError<'_>`
`&String: std::error::Error`
which is required by `&String: AsDynError<'_>`
`str: Sized`
which is required by `str: AsDynError<'_>`
`str: std::error::Error`
which is required by `str: AsDynError<'_>`
vendor/thiserror/tests/ui/transparent-enum-source.rs
Vendored
+9
View File
@@ -0,0 +1,9 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error(transparent)]
Other(#[source] anyhow::Error),
}
fn main() {}
vendor/thiserror/tests/ui/transparent-enum-source.stderr
Vendored
+5
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@@ -0,0 +1,5 @@
error: transparent variant can't contain #[source]
--> tests/ui/transparent-enum-source.rs:6:11
|
6 | Other(#[source] anyhow::Error),
| ^^^^^^^^^
vendor/thiserror/tests/ui/transparent-enum-unnamed-field-not-error.rs
Vendored
+9
View File
@@ -0,0 +1,9 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error(transparent)]
Other(String),
}
fn main() {}
vendor/thiserror/tests/ui/transparent-enum-unnamed-field-not-error.stderr
Vendored
+20
View File
@@ -0,0 +1,20 @@
error[E0599]: the method `as_dyn_error` exists for reference `&String`, but its trait bounds were not satisfied
--> tests/ui/transparent-enum-unnamed-field-not-error.rs:5:13
|
5 | #[error(transparent)]
| ^^^^^^^^^^^ method cannot be called on `&String` due to unsatisfied trait bounds
|
::: $RUST/alloc/src/string.rs
|
| pub struct String {
| ----------------- doesn't satisfy `String: AsDynError<'_>` or `String: std::error::Error`
|
= note: the following trait bounds were not satisfied:
`String: std::error::Error`
which is required by `String: AsDynError<'_>`
`&String: std::error::Error`
which is required by `&String: AsDynError<'_>`
`str: Sized`
which is required by `str: AsDynError<'_>`
`str: std::error::Error`
which is required by `str: AsDynError<'_>`
vendor/thiserror/tests/ui/transparent-struct-many.rs
Vendored
+10
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@@ -0,0 +1,10 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(transparent)]
pub struct Error {
inner: anyhow::Error,
what: String,
}
fn main() {}
vendor/thiserror/tests/ui/transparent-struct-many.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: #[error(transparent)] requires exactly one field
--> tests/ui/transparent-struct-many.rs:4:1
|
4 | #[error(transparent)]
| ^^^^^^^^^^^^^^^^^^^^^
vendor/thiserror/tests/ui/transparent-struct-not-error.rs
Vendored
+9
View File
@@ -0,0 +1,9 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(transparent)]
pub struct Error {
message: String,
}
fn main() {}
vendor/thiserror/tests/ui/transparent-struct-not-error.stderr
Vendored
+18
View File
@@ -0,0 +1,18 @@
error[E0599]: the method `as_dyn_error` exists for struct `String`, but its trait bounds were not satisfied
--> tests/ui/transparent-struct-not-error.rs:4:9
|
4 | #[error(transparent)]
| ^^^^^^^^^^^ method cannot be called on `String` due to unsatisfied trait bounds
|
::: $RUST/alloc/src/string.rs
|
| pub struct String {
| ----------------- doesn't satisfy `String: AsDynError<'_>` or `String: std::error::Error`
|
= note: the following trait bounds were not satisfied:
`String: std::error::Error`
which is required by `String: AsDynError<'_>`
`str: Sized`
which is required by `str: AsDynError<'_>`
`str: std::error::Error`
which is required by `str: AsDynError<'_>`
vendor/thiserror/tests/ui/transparent-struct-source.rs
Vendored
+7
View File
@@ -0,0 +1,7 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(transparent)]
pub struct Error(#[source] anyhow::Error);
fn main() {}
vendor/thiserror/tests/ui/transparent-struct-source.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: transparent error struct can't contain #[source]
--> tests/ui/transparent-struct-source.rs:5:18
|
5 | pub struct Error(#[source] anyhow::Error);
| ^^^^^^^^^
vendor/thiserror/tests/ui/transparent-struct-unnamed-field-not-error.rs
Vendored
+7
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@@ -0,0 +1,7 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error(transparent)]
pub struct Error(String);
fn main() {}
vendor/thiserror/tests/ui/transparent-struct-unnamed-field-not-error.stderr
Vendored
+18
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@@ -0,0 +1,18 @@
error[E0599]: the method `as_dyn_error` exists for struct `String`, but its trait bounds were not satisfied
--> tests/ui/transparent-struct-unnamed-field-not-error.rs:4:9
|
4 | #[error(transparent)]
| ^^^^^^^^^^^ method cannot be called on `String` due to unsatisfied trait bounds
|
::: $RUST/alloc/src/string.rs
|
| pub struct String {
| ----------------- doesn't satisfy `String: AsDynError<'_>` or `String: std::error::Error`
|
= note: the following trait bounds were not satisfied:
`String: std::error::Error`
which is required by `String: AsDynError<'_>`
`str: Sized`
which is required by `str: AsDynError<'_>`
`str: std::error::Error`
which is required by `str: AsDynError<'_>`
vendor/thiserror/tests/ui/unconditional-recursion.rs
Vendored
+9
View File
@@ -0,0 +1,9 @@
use thiserror::Error;
#[derive(Error, Debug)]
#[error("{self}")]
pub struct Error;
fn main() {
__FAIL__;
}
vendor/thiserror/tests/ui/unconditional-recursion.stderr
Vendored
+21
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@@ -0,0 +1,21 @@
error[E0425]: cannot find value `__FAIL__` in this scope
--> tests/ui/unconditional-recursion.rs:8:5
|
8 | __FAIL__;
| ^^^^^^^^ not found in this scope
warning: function cannot return without recursing
--> tests/ui/unconditional-recursion.rs:4:9
|
4 | #[error("{self}")]
| ^^^^^^^^
| |
| cannot return without recursing
| recursive call site
|
= help: a `loop` may express intention better if this is on purpose
note: the lint level is defined here
--> tests/ui/unconditional-recursion.rs:4:9
|
4 | #[error("{self}")]
| ^^^^^^^^
vendor/thiserror/tests/ui/unexpected-field-fmt.rs
Vendored
+11
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@@ -0,0 +1,11 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
What {
#[error("...")]
io: std::io::Error,
},
}
fn main() {}
vendor/thiserror/tests/ui/unexpected-field-fmt.stderr
Vendored
+5
View File
@@ -0,0 +1,5 @@
error: not expected here; the #[error(...)] attribute belongs on top of a struct or an enum variant
--> tests/ui/unexpected-field-fmt.rs:6:9
|
6 | #[error("...")]
| ^^^^^^^^^^^^^^^
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