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{
"git": {
"sha1": "6093aa9de6428df2e1c04aa9e969f1af7c34664f"
}
}

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target
Cargo.lock
.DS_Store

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies
#
# If you believe there's an error in this file please file an
# issue against the rust-lang/cargo repository. If you're
# editing this file be aware that the upstream Cargo.toml
# will likely look very different (and much more reasonable)
[package]
edition = "2018"
name = "rustc_version"
version = "0.4.0"
authors = ["Dirkjan Ochtman <dirkjan@ochtman.nl>", "Marvin Löbel <loebel.marvin@gmail.com>"]
description = "A library for querying the version of a installed rustc compiler"
documentation = "https://docs.rs/rustc_version/"
readme = "README.md"
keywords = ["version", "rustc"]
license = "MIT/Apache-2.0"
repository = "https://github.com/Kimundi/rustc-version-rs"
[dependencies.semver]
version = "1.0"
[dev-dependencies.doc-comment]
version = "0.3"

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[package]
name = "rustc_version"
version = "0.4.0"
authors = ["Dirkjan Ochtman <dirkjan@ochtman.nl>", "Marvin Löbel <loebel.marvin@gmail.com>"]
license = "MIT/Apache-2.0"
description = "A library for querying the version of a installed rustc compiler"
readme = "README.md"
documentation = "https://docs.rs/rustc_version/"
repository = "https://github.com/Kimundi/rustc-version-rs"
keywords = ["version", "rustc"]
edition = "2018"
[dependencies]
semver = "1.0"
[dev-dependencies]
doc-comment = "0.3"

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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Copyright (c) 2016 The Rust Project Developers
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,
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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.

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rustc-version-rs
================
[![Documentation](https://docs.rs/rustc_version/badge.svg)](https://docs.rs/rustc_version/)
[![Crates.io](https://img.shields.io/crates/v/rustc_version.svg)](https://crates.io/crates/rustc_version)
[![Build status](https://github.com/Kimundi/rustc-version-rs/workflows/CI/badge.svg)](https://github.com/Kimundi/rustc-version-rs/actions?query=workflow%3ACI)
A library for querying the version of a `rustc` compiler.
This can be used by build scripts or other tools dealing with Rust sources
to make decisions based on the version of the compiler. Current MSRV is 1.32.0.
If this is of interest, also consider looking at these other crates:
* [autocfg](https://crates.io/crates/autocfg/), which helps with feature detection instead of depending on compiler versions
* [rustversion](https://github.com/dtolnay/rustversion) provides a procedural macro with no other dependencies
# Getting Started
[rustc-version-rs is available on crates.io](https://crates.io/crates/rustc_version).
It is recommended to look there for the newest released version, as well as links to the newest builds of the docs.
At the point of the last update of this README, the latest published version could be used like this:
Add the following dependency to your Cargo manifest...
```toml
[build-dependencies]
rustc_version = "0.2"
```
... and see the [docs](https://docs.rs/rustc_version) for how to use it.
# Example
```rust
// This could be a cargo build script
use rustc_version::{version, version_meta, Channel, Version};
fn main() {
// Assert we haven't travelled back in time
assert!(version().unwrap().major >= 1);
// Set cfg flags depending on release channel
match version_meta().unwrap().channel {
Channel::Stable => {
println!("cargo:rustc-cfg=RUSTC_IS_STABLE");
}
Channel::Beta => {
println!("cargo:rustc-cfg=RUSTC_IS_BETA");
}
Channel::Nightly => {
println!("cargo:rustc-cfg=RUSTC_IS_NIGHTLY");
}
Channel::Dev => {
println!("cargo:rustc-cfg=RUSTC_IS_DEV");
}
}
// Check for a minimum version
if version().unwrap() >= Version::parse("1.4.0").unwrap() {
println!("cargo:rustc-cfg=compiler_has_important_bugfix");
}
}
```
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any
additional terms or conditions.

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{"package":"bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366","files":{}}

5
debian/changelog vendored
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rust-rustc-version (0.4.0-ok1) yangtze; urgency=medium
* Build for openkylin.
-- sufang <sufang@kylinos.cn> Tue, 07 Mar 2023 09:38:53 +0800

1
debian/compat vendored
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12

33
debian/control vendored
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Source: rust-rustc-version
Section: rust
Priority: optional
Build-Depends: debhelper (>= 12),
dh-cargo (>= 24),
cargo:native <!nocheck>,
rustc:native <!nocheck>,
libstd-rust-dev <!nocheck>,
librust-semver-1+default-dev <!nocheck>
Maintainer: OpenKylin Developers <packaging@lists.openkylin.top>
Standards-Version: 4.5.1
Vcs-Git: https://gitee.com/openkylin/rust-rustc-version.git
Vcs-Browser: https://gitee.com/openkylin/rust-rustc-version
X-Cargo-Crate: rustc_version
Rules-Requires-Root: no
Package: librust-rustc-version-dev
Architecture: any
Multi-Arch: same
Depends:
${misc:Depends},
librust-semver-1+default-dev
Provides:
librust-rustc-version+default-dev (= ${binary:Version}),
librust-rustc-version-0-dev (= ${binary:Version}),
librust-rustc-version-0+default-dev (= ${binary:Version}),
librust-rustc-version-0.4-dev (= ${binary:Version}),
librust-rustc-version-0.4+default-dev (= ${binary:Version}),
librust-rustc-version-0.4.0-dev (= ${binary:Version}),
librust-rustc-version-0.4.0+default-dev (= ${binary:Version})
Description: Querying the version of a installed rustc compiler - Rust source code
This package contains the source for the Rust rustc_version crate, packaged by
debcargo for use with cargo and dh-cargo.

428
debian/copyright vendored
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Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: rust-rustc-version
Source: <url://example.com>
#
# Please double check copyright with the licensecheck(1) command.
Files: .cargo_vcs_info.json
.gitignore
Cargo.toml
Cargo.toml.orig
deny.toml
tests/all.rs
Copyright: __NO_COPYRIGHT_NOR_LICENSE__
License: __NO_COPYRIGHT_NOR_LICENSE__
Files: LICENSE-MIT
Copyright: 2016 The Rust Project Developers
License: Expat
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.
Files: src/lib.rs
Copyright: 2016 rustc-version-rs developers
License: __UNKNOWN__
Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
<LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
option. This file may not be copied, modified, or distributed
except according to those terms.
Files: LICENSE-APACHE
Copyright: [yyyy] [name of copyright owner]
license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.
License: __UNKNOWN__
3. Grant of Patent 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
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
.
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
.
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
.
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
.
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
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
.
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
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
.
END OF TERMS AND CONDITIONS
.
APPENDIX: How to apply the Apache License to your work.
.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
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same "printed page" as the copyright notice for easier
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Licensed under the Apache License, Version 2.0 (the "License");
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You may obtain a copy of the License at
.
http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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Files: README.md
Copyright: __NO_COPYRIGHT__ in: README.md
License: __UNKNOWN__ *** dual license ***
Licensed under either of
.
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* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
.
at your option.
.
### Contribution
.
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any
additional terms or conditions.
#----------------------------------------------------------------------------
# Files marked as NO_LICENSE_TEXT_FOUND may be covered by the following
# license/copyright files.
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# License file: LICENSE-APACHE
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,
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"You" (or "Your") shall mean an individual or Legal Entity
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"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
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"Object" form shall mean any form resulting from mechanical
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.
"Work" shall mean the work of authorship, whether in Source or
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copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
.
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
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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#----------------------------------------------------------------------------
# License file: LICENSE-MIT
Copyright (c) 2016 The Rust Project Developers
.
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.

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@ -1,60 +0,0 @@
Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: rustc_version
Upstream-Contact:
Dirkjan Ochtman <dirkjan@ochtman.nl>
Marvin Löbel <loebel.marvin@gmail.com>
Source: https://github.com/Kimundi/rustc-version-rs
Files: *
Copyright:
FIXME (overlay) UNKNOWN-YEARS Dirkjan Ochtman <dirkjan@ochtman.nl>
FIXME (overlay) UNKNOWN-YEARS Marvin Löbel <loebel.marvin@gmail.com>
License: MIT or Apache-2.0
Comment:
FIXME (overlay): Since upstream copyright years are not available in
Cargo.toml, they were extracted from the upstream Git repository. This may not
be correct information so you should review and fix this before uploading to
the archive.
Files: ./LICENSE-MIT
Copyright: 2016 The Rust Project Developers
License: UNKNOWN-LICENSE; FIXME (overlay)
Comment:
FIXME (overlay): These notices are extracted from files. Please review them
before uploading to the archive.
Files: ./src/lib.rs
Copyright: 2016 rustc-version-rs developers
License: UNKNOWN-LICENSE; FIXME (overlay)
Comment:
FIXME (overlay): These notices are extracted from files. Please review them
before uploading to the archive.
Files: debian/*
Copyright:
2018-2021 Debian Rust Maintainers <pkg-rust-maintainers@alioth-lists.debian.net>
2018-2021 Sylvestre Ledru <sylvestre@debian.org>
License: MIT or Apache-2.0
License: Apache-2.0
Debian systems provide the Apache 2.0 license in
/usr/share/common-licenses/Apache-2.0
License: MIT
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:
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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.

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@ -1,2 +0,0 @@
overlay = "."
uploaders = ["Sylvestre Ledru <sylvestre@debian.org>"]

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@ -1 +0,0 @@
# You must remove unused comment lines for the released package.

3
debian/rules vendored
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@ -1,3 +0,0 @@
#!/usr/bin/make -f
%:
dh $@ --buildsystem cargo

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@ -1 +0,0 @@
3.0 (native)

14
debian/tests/control vendored
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@ -1,14 +0,0 @@
Test-Command: /usr/share/cargo/bin/cargo-auto-test rustc_version 0.4.0 --all-targets --all-features
Features: test-name=rust-rustc-version:@
Depends: dh-cargo (>= 18), librust-doc-comment-0.3+default-dev, @
Restrictions: allow-stderr, skip-not-installable
Test-Command: /usr/share/cargo/bin/cargo-auto-test rustc_version 0.4.0 --all-targets
Features: test-name=librust-rustc-version-dev:default
Depends: dh-cargo (>= 18), librust-doc-comment-0.3+default-dev, @
Restrictions: allow-stderr, skip-not-installable
Test-Command: /usr/share/cargo/bin/cargo-auto-test rustc_version 0.4.0 --all-targets --no-default-features
Features: test-name=librust-rustc-version-dev:
Depends: dh-cargo (>= 18), librust-doc-comment-0.3+default-dev, @
Restrictions: allow-stderr, skip-not-installable

4
debian/watch vendored
View File

@ -1,4 +0,0 @@
version=4
opts=filenamemangle=s/.*\/(.*)\/download/rustc_version-$1\.tar\.gz/g,\
uversionmangle=s/(\d)[_\.\-\+]?((RC|rc|pre|dev|beta|alpha)\d*)$/$1~$2/ \
https://qa.debian.org/cgi-bin/fakeupstream.cgi?upstream=crates.io/rustc_version .*/crates/rustc_version/@ANY_VERSION@/download

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@ -1,3 +0,0 @@
[licenses]
allow-osi-fsf-free = "either"
copyleft = "deny"

Binary file not shown.

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@ -0,0 +1 @@
47e072e500de4efa6c8144ea031ee2c12c4da143

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@ -1,417 +0,0 @@
// Copyright 2016 rustc-version-rs developers
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![warn(missing_docs)]
//! Simple library for getting the version information of a `rustc`
//! compiler.
//!
//! This can be used by build scripts or other tools dealing with Rust sources
//! to make decisions based on the version of the compiler.
//!
//! It calls `$RUSTC --version -v` and parses the output, falling
//! back to `rustc` if `$RUSTC` is not set.
//!
//! # Example
//!
//! ```rust
//! // This could be a cargo build script
//!
//! use rustc_version::{version, version_meta, Channel, Version};
//!
//! // Assert we haven't travelled back in time
//! assert!(version().unwrap().major >= 1);
//!
//! // Set cfg flags depending on release channel
//! match version_meta().unwrap().channel {
//! Channel::Stable => {
//! println!("cargo:rustc-cfg=RUSTC_IS_STABLE");
//! }
//! Channel::Beta => {
//! println!("cargo:rustc-cfg=RUSTC_IS_BETA");
//! }
//! Channel::Nightly => {
//! println!("cargo:rustc-cfg=RUSTC_IS_NIGHTLY");
//! }
//! Channel::Dev => {
//! println!("cargo:rustc-cfg=RUSTC_IS_DEV");
//! }
//! }
//!
//! // Check for a minimum version
//! if version().unwrap() >= Version::parse("1.4.0").unwrap() {
//! println!("cargo:rustc-cfg=compiler_has_important_bugfix");
//! }
//! ```
#[cfg(test)]
#[macro_use]
extern crate doc_comment;
#[cfg(test)]
doctest!("../README.md");
use std::collections::HashMap;
use std::process::Command;
use std::{env, error, fmt, io, num, str};
use std::{ffi::OsString, str::FromStr};
// Convenience re-export to allow version comparison without needing to add
// semver crate.
pub use semver::Version;
use Error::*;
/// Release channel of the compiler.
#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
pub enum Channel {
/// Development release channel
Dev,
/// Nightly release channel
Nightly,
/// Beta release channel
Beta,
/// Stable release channel
Stable,
}
/// LLVM version
///
/// LLVM's version numbering scheme is not semver compatible until version 4.0
///
/// rustc [just prints the major and minor versions], so other parts of the version are not included.
///
/// [just prints the major and minor versions]: https://github.com/rust-lang/rust/blob/b5c9e2448c9ace53ad5c11585803894651b18b0a/compiler/rustc_codegen_llvm/src/llvm_util.rs#L173-L178
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct LlvmVersion {
// fields must be ordered major, minor for comparison to be correct
/// Major version
pub major: u64,
/// Minor version
pub minor: u64,
// TODO: expose micro version here
}
impl fmt::Display for LlvmVersion {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}.{}", self.major, self.minor)
}
}
impl FromStr for LlvmVersion {
type Err = LlvmVersionParseError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let mut parts = s
.split('.')
.map(|part| -> Result<u64, LlvmVersionParseError> {
if part == "0" {
Ok(0)
} else if part.starts_with('0') {
Err(LlvmVersionParseError::ComponentMustNotHaveLeadingZeros)
} else if part.starts_with('-') || part.starts_with('+') {
Err(LlvmVersionParseError::ComponentMustNotHaveSign)
} else {
Ok(part.parse()?)
}
});
let major = parts.next().unwrap()?;
let mut minor = 0;
if let Some(part) = parts.next() {
minor = part?;
} else if major < 4 {
// LLVM versions earlier than 4.0 have significant minor versions, so require the minor version in this case.
return Err(LlvmVersionParseError::MinorVersionRequiredBefore4);
}
if let Some(Err(e)) = parts.next() {
return Err(e);
}
if parts.next().is_some() {
return Err(LlvmVersionParseError::TooManyComponents);
}
Ok(Self { major, minor })
}
}
/// Rustc version plus metadata like git short hash and build date.
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct VersionMeta {
/// Version of the compiler
pub semver: Version,
/// Git short hash of the build of the compiler
pub commit_hash: Option<String>,
/// Commit date of the compiler
pub commit_date: Option<String>,
/// Build date of the compiler; this was removed between Rust 1.0.0 and 1.1.0.
pub build_date: Option<String>,
/// Release channel of the compiler
pub channel: Channel,
/// Host target triple of the compiler
pub host: String,
/// Short version string of the compiler
pub short_version_string: String,
/// Version of LLVM used by the compiler
pub llvm_version: Option<LlvmVersion>,
}
impl VersionMeta {
/// Returns the version metadata for `cmd`, which should be a `rustc` command.
pub fn for_command(mut cmd: Command) -> Result<VersionMeta> {
let out = cmd
.arg("-vV")
.output()
.map_err(Error::CouldNotExecuteCommand)?;
if !out.status.success() {
return Err(Error::CommandError {
stdout: String::from_utf8_lossy(&out.stdout).into(),
stderr: String::from_utf8_lossy(&out.stderr).into(),
});
}
version_meta_for(str::from_utf8(&out.stdout)?)
}
}
/// Returns the `rustc` SemVer version.
pub fn version() -> Result<Version> {
Ok(version_meta()?.semver)
}
/// Returns the `rustc` SemVer version and additional metadata
/// like the git short hash and build date.
pub fn version_meta() -> Result<VersionMeta> {
let cmd = env::var_os("RUSTC").unwrap_or_else(|| OsString::from("rustc"));
VersionMeta::for_command(Command::new(cmd))
}
/// Parses a "rustc -vV" output string and returns
/// the SemVer version and additional metadata
/// like the git short hash and build date.
pub fn version_meta_for(verbose_version_string: &str) -> Result<VersionMeta> {
let mut map = HashMap::new();
for (i, line) in verbose_version_string.lines().enumerate() {
if i == 0 {
map.insert("short", line);
continue;
}
let mut parts = line.splitn(2, ": ");
let key = match parts.next() {
Some(key) => key,
None => continue,
};
if let Some(value) = parts.next() {
map.insert(key, value);
}
}
let short_version_string = expect_key("short", &map)?;
let host = expect_key("host", &map)?;
let release = expect_key("release", &map)?;
let semver: Version = release.parse()?;
let channel = match semver.pre.split('.').next().unwrap() {
"" => Channel::Stable,
"dev" => Channel::Dev,
"beta" => Channel::Beta,
"nightly" => Channel::Nightly,
x => return Err(Error::UnknownPreReleaseTag(x.to_owned())),
};
let commit_hash = expect_key_or_unknown("commit-hash", &map)?;
let commit_date = expect_key_or_unknown("commit-date", &map)?;
let build_date = map
.get("build-date")
.filter(|&v| *v != "unknown")
.map(|&v| String::from(v));
let llvm_version = match map.get("LLVM version") {
Some(&v) => Some(v.parse()?),
None => None,
};
Ok(VersionMeta {
semver,
commit_hash,
commit_date,
build_date,
channel,
host,
short_version_string,
llvm_version,
})
}
fn expect_key_or_unknown(key: &str, map: &HashMap<&str, &str>) -> Result<Option<String>, Error> {
match map.get(key) {
Some(&v) if v == "unknown" => Ok(None),
Some(&v) => Ok(Some(String::from(v))),
None => Err(Error::UnexpectedVersionFormat),
}
}
fn expect_key(key: &str, map: &HashMap<&str, &str>) -> Result<String, Error> {
map.get(key)
.map(|&v| String::from(v))
.ok_or(Error::UnexpectedVersionFormat)
}
/// LLVM Version Parse Error
#[derive(Debug)]
pub enum LlvmVersionParseError {
/// An error occurred in parsing a version component as an integer
ParseIntError(num::ParseIntError),
/// A version component must not have leading zeros
ComponentMustNotHaveLeadingZeros,
/// A version component has a sign
ComponentMustNotHaveSign,
/// Minor version component must be zero on LLVM versions later than 4.0
MinorVersionMustBeZeroAfter4,
/// Minor version component is required on LLVM versions earlier than 4.0
MinorVersionRequiredBefore4,
/// Too many components
TooManyComponents,
}
impl From<num::ParseIntError> for LlvmVersionParseError {
fn from(e: num::ParseIntError) -> Self {
LlvmVersionParseError::ParseIntError(e)
}
}
impl fmt::Display for LlvmVersionParseError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
LlvmVersionParseError::ParseIntError(e) => {
write!(f, "error parsing LLVM version component: {}", e)
}
LlvmVersionParseError::ComponentMustNotHaveLeadingZeros => {
write!(f, "a version component must not have leading zeros")
}
LlvmVersionParseError::ComponentMustNotHaveSign => {
write!(f, "a version component must not have a sign")
}
LlvmVersionParseError::MinorVersionMustBeZeroAfter4 => write!(
f,
"LLVM's minor version component must be 0 for versions greater than 4.0"
),
LlvmVersionParseError::MinorVersionRequiredBefore4 => write!(
f,
"LLVM's minor version component is required for versions less than 4.0"
),
LlvmVersionParseError::TooManyComponents => write!(f, "too many version components"),
}
}
}
impl error::Error for LlvmVersionParseError {
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
match self {
LlvmVersionParseError::ParseIntError(e) => Some(e),
LlvmVersionParseError::ComponentMustNotHaveLeadingZeros
| LlvmVersionParseError::ComponentMustNotHaveSign
| LlvmVersionParseError::MinorVersionMustBeZeroAfter4
| LlvmVersionParseError::MinorVersionRequiredBefore4
| LlvmVersionParseError::TooManyComponents => None,
}
}
}
/// The error type for this crate.
#[derive(Debug)]
pub enum Error {
/// An error occurred while trying to find the `rustc` to run.
CouldNotExecuteCommand(io::Error),
/// Error output from the command that was run.
CommandError {
/// stdout output from the command
stdout: String,
/// stderr output from the command
stderr: String,
},
/// The output of `rustc -vV` was not valid utf-8.
Utf8Error(str::Utf8Error),
/// The output of `rustc -vV` was not in the expected format.
UnexpectedVersionFormat,
/// An error occurred in parsing the semver.
SemVerError(semver::Error),
/// The pre-release tag is unknown.
UnknownPreReleaseTag(String),
/// An error occurred in parsing a `LlvmVersion`.
LlvmVersionError(LlvmVersionParseError),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
CouldNotExecuteCommand(ref e) => write!(f, "could not execute command: {}", e),
CommandError {
ref stdout,
ref stderr,
} => write!(
f,
"error from command -- stderr:\n\n{}\n\nstderr:\n\n{}",
stderr, stdout,
),
Utf8Error(_) => write!(f, "invalid UTF-8 output from `rustc -vV`"),
UnexpectedVersionFormat => write!(f, "unexpected `rustc -vV` format"),
SemVerError(ref e) => write!(f, "error parsing version: {}", e),
UnknownPreReleaseTag(ref i) => write!(f, "unknown pre-release tag: {}", i),
LlvmVersionError(ref e) => write!(f, "error parsing LLVM's version: {}", e),
}
}
}
impl error::Error for Error {
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
match *self {
CouldNotExecuteCommand(ref e) => Some(e),
CommandError { .. } => None,
Utf8Error(ref e) => Some(e),
UnexpectedVersionFormat => None,
SemVerError(ref e) => Some(e),
UnknownPreReleaseTag(_) => None,
LlvmVersionError(ref e) => Some(e),
}
}
}
macro_rules! impl_from {
($($err_ty:ty => $variant:ident),* $(,)*) => {
$(
impl From<$err_ty> for Error {
fn from(e: $err_ty) -> Error {
Error::$variant(e)
}
}
)*
}
}
impl_from! {
str::Utf8Error => Utf8Error,
semver::Error => SemVerError,
LlvmVersionParseError => LlvmVersionError,
}
/// The result type for this crate.
pub type Result<T, E = Error> = std::result::Result<T, E>;

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@ -1,456 +0,0 @@
#![allow(clippy::match_like_matches_macro)]
use std::process::Command;
use rustc_version::{
version, version_meta, version_meta_for, Channel, Error, LlvmVersion, LlvmVersionParseError,
Version, VersionMeta,
};
#[test]
fn rustc_error() {
let mut cmd = Command::new("rustc");
cmd.arg("--FOO");
let stderr = match VersionMeta::for_command(cmd) {
Err(Error::CommandError { stdout: _, stderr }) => stderr,
_ => panic!("command error expected"),
};
assert_eq!(stderr, "error: Unrecognized option: \'FOO\'\n\n");
}
#[test]
fn smoketest() {
let v = version().unwrap();
assert!(v.major >= 1);
let v = version_meta().unwrap();
assert!(v.semver.major >= 1);
assert!(version().unwrap() >= Version::parse("1.0.0").unwrap());
}
#[test]
fn parse_1_0_0() {
let version = version_meta_for(
"rustc 1.0.0 (a59de37e9 2015-05-13) (built 2015-05-14)
binary: rustc
commit-hash: a59de37e99060162a2674e3ff45409ac73595c0e
commit-date: 2015-05-13
build-date: 2015-05-14
host: x86_64-unknown-linux-gnu
release: 1.0.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.0.0").unwrap());
assert_eq!(
version.commit_hash,
Some("a59de37e99060162a2674e3ff45409ac73595c0e".into())
);
assert_eq!(version.commit_date, Some("2015-05-13".into()));
assert_eq!(version.build_date, Some("2015-05-14".into()));
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.0.0 (a59de37e9 2015-05-13) (built 2015-05-14)"
);
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_unknown() {
let version = version_meta_for(
"rustc 1.3.0
binary: rustc
commit-hash: unknown
commit-date: unknown
host: x86_64-unknown-linux-gnu
release: 1.3.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.3.0").unwrap());
assert_eq!(version.commit_hash, None);
assert_eq!(version.commit_date, None);
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(version.short_version_string, "rustc 1.3.0");
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_nightly() {
let version = version_meta_for(
"rustc 1.5.0-nightly (65d5c0833 2015-09-29)
binary: rustc
commit-hash: 65d5c083377645a115c4ac23a620d3581b9562b6
commit-date: 2015-09-29
host: x86_64-unknown-linux-gnu
release: 1.5.0-nightly",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.5.0-nightly").unwrap());
assert_eq!(
version.commit_hash,
Some("65d5c083377645a115c4ac23a620d3581b9562b6".into())
);
assert_eq!(version.commit_date, Some("2015-09-29".into()));
assert_eq!(version.channel, Channel::Nightly);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.5.0-nightly (65d5c0833 2015-09-29)"
);
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_stable() {
let version = version_meta_for(
"rustc 1.3.0 (9a92aaf19 2015-09-15)
binary: rustc
commit-hash: 9a92aaf19a64603b02b4130fe52958cc12488900
commit-date: 2015-09-15
host: x86_64-unknown-linux-gnu
release: 1.3.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.3.0").unwrap());
assert_eq!(
version.commit_hash,
Some("9a92aaf19a64603b02b4130fe52958cc12488900".into())
);
assert_eq!(version.commit_date, Some("2015-09-15".into()));
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.3.0 (9a92aaf19 2015-09-15)"
);
assert_eq!(version.llvm_version, None);
}
#[test]
fn parse_1_16_0_nightly() {
let version = version_meta_for(
"rustc 1.16.0-nightly (5d994d8b7 2017-01-05)
binary: rustc
commit-hash: 5d994d8b7e482e87467d4a521911477bd8284ce3
commit-date: 2017-01-05
host: x86_64-unknown-linux-gnu
release: 1.16.0-nightly
LLVM version: 3.9",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.16.0-nightly").unwrap());
assert_eq!(
version.commit_hash,
Some("5d994d8b7e482e87467d4a521911477bd8284ce3".into())
);
assert_eq!(version.commit_date, Some("2017-01-05".into()));
assert_eq!(version.channel, Channel::Nightly);
assert_eq!(version.host, "x86_64-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.16.0-nightly (5d994d8b7 2017-01-05)"
);
assert_eq!(
version.llvm_version,
Some(LlvmVersion { major: 3, minor: 9 })
);
}
#[test]
fn parse_1_47_0_stable() {
let version = version_meta_for(
"rustc 1.47.0 (18bf6b4f0 2020-10-07)
binary: rustc
commit-hash: 18bf6b4f01a6feaf7259ba7cdae58031af1b7b39
commit-date: 2020-10-07
host: powerpc64le-unknown-linux-gnu
release: 1.47.0
LLVM version: 11.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.47.0").unwrap());
assert_eq!(
version.commit_hash,
Some("18bf6b4f01a6feaf7259ba7cdae58031af1b7b39".into())
);
assert_eq!(version.commit_date, Some("2020-10-07".into()));
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "powerpc64le-unknown-linux-gnu");
assert_eq!(
version.short_version_string,
"rustc 1.47.0 (18bf6b4f0 2020-10-07)"
);
assert_eq!(
version.llvm_version,
Some(LlvmVersion {
major: 11,
minor: 0,
})
);
}
#[test]
fn parse_llvm_micro() {
let version = version_meta_for(
"rustc 1.51.0-nightly (4253153db 2021-01-17)
binary: rustc
commit-hash: 4253153db205251f72ea4493687a31e04a2a8ca0
commit-date: 2021-01-17
host: x86_64-pc-windows-msvc
release: 1.51.0-nightly
LLVM version: 11.0.1",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.51.0-nightly").unwrap());
assert_eq!(
version.commit_hash.unwrap(),
"4253153db205251f72ea4493687a31e04a2a8ca0"
);
assert_eq!(version.commit_date.unwrap(), "2021-01-17");
assert_eq!(version.host, "x86_64-pc-windows-msvc");
assert_eq!(
version.short_version_string,
"rustc 1.51.0-nightly (4253153db 2021-01-17)"
);
assert_eq!(
version.llvm_version,
Some(LlvmVersion {
major: 11,
minor: 0
})
);
}
#[test]
fn parse_debian_buster() {
let version = version_meta_for(
"rustc 1.41.1
binary: rustc
commit-hash: unknown
commit-date: unknown
host: powerpc64le-unknown-linux-gnu
release: 1.41.1
LLVM version: 7.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.41.1").unwrap());
assert_eq!(version.commit_hash, None);
assert_eq!(version.commit_date, None);
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "powerpc64le-unknown-linux-gnu");
assert_eq!(version.short_version_string, "rustc 1.41.1");
assert_eq!(
version.llvm_version,
Some(LlvmVersion { major: 7, minor: 0 })
);
}
#[test]
fn parse_termux() {
let version = version_meta_for(
"rustc 1.46.0
binary: rustc
commit-hash: unknown
commit-date: unknown
host: aarch64-linux-android
release: 1.46.0
LLVM version: 10.0",
)
.unwrap();
assert_eq!(version.semver, Version::parse("1.46.0").unwrap());
assert_eq!(version.commit_hash, None);
assert_eq!(version.commit_date, None);
assert_eq!(version.channel, Channel::Stable);
assert_eq!(version.host, "aarch64-linux-android");
assert_eq!(version.short_version_string, "rustc 1.46.0");
assert_eq!(
version.llvm_version,
Some(LlvmVersion {
major: 10,
minor: 0,
})
);
}
#[test]
fn parse_llvm_version_empty() {
let res: Result<LlvmVersion, _> = "".parse();
assert!(match res {
Err(LlvmVersionParseError::ParseIntError(_)) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_invalid_char() {
let res: Result<LlvmVersion, _> = "A".parse();
assert!(match res {
Err(LlvmVersionParseError::ParseIntError(_)) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_overflow() {
let res: Result<LlvmVersion, _> = "9999999999999999999999999999999".parse();
assert!(match res {
Err(LlvmVersionParseError::ParseIntError(_)) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_leading_zero_on_zero() {
let res: Result<LlvmVersion, _> = "00".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveLeadingZeros) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_leading_zero_on_nonzero() {
let res: Result<LlvmVersion, _> = "01".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveLeadingZeros) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_4_components() {
let res: Result<LlvmVersion, _> = "4.0.0.0".parse();
assert!(match res {
Err(LlvmVersionParseError::TooManyComponents) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_component_sign_plus() {
let res: Result<LlvmVersion, _> = "1.+3".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveSign) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_component_sign_minus() {
let res: Result<LlvmVersion, _> = "1.-3".parse();
assert!(match res {
Err(LlvmVersionParseError::ComponentMustNotHaveSign) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_3() {
let res: Result<LlvmVersion, _> = "3".parse();
assert!(match res {
Err(LlvmVersionParseError::MinorVersionRequiredBefore4) => true,
_ => false,
});
}
#[test]
fn parse_llvm_version_5() {
let v: LlvmVersion = "5".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 5, minor: 0 });
}
#[test]
fn parse_llvm_version_5_0() {
let v: LlvmVersion = "5.0".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 5, minor: 0 });
}
#[test]
fn parse_llvm_version_4_0() {
let v: LlvmVersion = "4.0".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 4, minor: 0 });
}
#[test]
fn parse_llvm_version_3_0() {
let v: LlvmVersion = "3.0".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 3, minor: 0 });
}
#[test]
fn parse_llvm_version_3_9() {
let v: LlvmVersion = "3.9".parse().unwrap();
assert_eq!(v, LlvmVersion { major: 3, minor: 9 });
}
#[test]
fn parse_llvm_version_11_0() {
let v: LlvmVersion = "11.0".parse().unwrap();
assert_eq!(
v,
LlvmVersion {
major: 11,
minor: 0
}
);
}
#[test]
fn parse_llvm_version_11() {
let v: LlvmVersion = "11".parse().unwrap();
assert_eq!(
v,
LlvmVersion {
major: 11,
minor: 0
}
);
}
#[test]
fn test_llvm_version_comparison() {
// check that field order is correct
assert!(LlvmVersion { major: 3, minor: 9 } < LlvmVersion { major: 4, minor: 0 });
}
/*
#[test]
fn version_matches_replacement() {
let f = |s1: &str, s2: &str| {
let a = Version::parse(s1).unwrap();
let b = Version::parse(s2).unwrap();
println!("{} <= {} : {}", s1, s2, a <= b);
};
println!();
f("1.5.0", "1.5.0");
f("1.5.0-nightly", "1.5.0");
f("1.5.0", "1.5.0-nightly");
f("1.5.0-nightly", "1.5.0-nightly");
f("1.5.0", "1.6.0");
f("1.5.0-nightly", "1.6.0");
f("1.5.0", "1.6.0-nightly");
f("1.5.0-nightly", "1.6.0-nightly");
panic!();
}
*/