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| -rw-r--r-- | vendor/cfg-if-0.1.10/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | vendor/cfg-if-0.1.10/Cargo.toml | 36 | ||||
| -rw-r--r-- | vendor/cfg-if-0.1.10/LICENSE-APACHE | 201 | ||||
| -rw-r--r-- | vendor/cfg-if-0.1.10/LICENSE-MIT | 25 | ||||
| -rw-r--r-- | vendor/cfg-if-0.1.10/README.md | 47 | ||||
| -rw-r--r-- | vendor/cfg-if-0.1.10/src/lib.rs | 176 | ||||
| -rw-r--r-- | vendor/cfg-if-0.1.10/tests/xcrate.rs | 14 | ||||
| -rw-r--r-- | vendor/cfg-if/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | vendor/cfg-if/Cargo.toml | 36 | ||||
| -rw-r--r-- | vendor/cfg-if/LICENSE-APACHE | 201 | ||||
| -rw-r--r-- | vendor/cfg-if/LICENSE-MIT | 25 | ||||
| -rw-r--r-- | vendor/cfg-if/README.md | 47 | ||||
| -rw-r--r-- | vendor/cfg-if/src/lib.rs | 176 | ||||
| -rw-r--r-- | vendor/cfg-if/tests/xcrate.rs | 14 |
14 files changed, 1000 insertions, 0 deletions
diff --git a/vendor/cfg-if-0.1.10/.cargo-checksum.json b/vendor/cfg-if-0.1.10/.cargo-checksum.json new file mode 100644 index 000000000..c0c9f9d04 --- /dev/null +++ b/vendor/cfg-if-0.1.10/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"2cb2370b62c56a7d51b51f9e405b2f377b3ad6f7f8d33bc69e20eb819ad66012","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"2406e83ee174e30aa67f8ab266836fa78545012b196395aff37c152321e2c713","src/lib.rs":"8dfd667d32d8b06e529643c975dfa14c29ce9a894a80e381a1bd867252e65e56","tests/xcrate.rs":"c0734dae6e63beafcd60bf53546115a2320735b51035c9e2387fdf9301580934"},"package":"4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"}
\ No newline at end of file diff --git a/vendor/cfg-if-0.1.10/Cargo.toml b/vendor/cfg-if-0.1.10/Cargo.toml new file mode 100644 index 000000000..5da1d1b4b --- /dev/null +++ b/vendor/cfg-if-0.1.10/Cargo.toml @@ -0,0 +1,36 @@ +# 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 = "cfg-if" +version = "0.1.10" +authors = ["Alex Crichton <alex@alexcrichton.com>"] +description = "A macro to ergonomically define an item depending on a large number of #[cfg]\nparameters. Structured like an if-else chain, the first matching branch is the\nitem that gets emitted.\n" +homepage = "https://github.com/alexcrichton/cfg-if" +documentation = "https://docs.rs/cfg-if" +readme = "README.md" +license = "MIT/Apache-2.0" +repository = "https://github.com/alexcrichton/cfg-if" +[dependencies.compiler_builtins] +version = "0.1.2" +optional = true + +[dependencies.core] +version = "1.0.0" +optional = true +package = "rustc-std-workspace-core" + +[features] +rustc-dep-of-std = ["core", "compiler_builtins"] +[badges.travis-ci] +repository = "alexcrichton/cfg-if" diff --git a/vendor/cfg-if-0.1.10/LICENSE-APACHE b/vendor/cfg-if-0.1.10/LICENSE-APACHE new file mode 100644 index 000000000..16fe87b06 --- /dev/null +++ b/vendor/cfg-if-0.1.10/LICENSE-APACHE @@ -0,0 +1,201 @@ + 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 + Object form, made available under the License, as indicated by a + 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 + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + +Copyright [yyyy] [name of copyright owner] + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/vendor/cfg-if-0.1.10/LICENSE-MIT b/vendor/cfg-if-0.1.10/LICENSE-MIT new file mode 100644 index 000000000..39e0ed660 --- /dev/null +++ b/vendor/cfg-if-0.1.10/LICENSE-MIT @@ -0,0 +1,25 @@ +Copyright (c) 2014 Alex Crichton + +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. diff --git a/vendor/cfg-if-0.1.10/README.md b/vendor/cfg-if-0.1.10/README.md new file mode 100644 index 000000000..50b5e3b2d --- /dev/null +++ b/vendor/cfg-if-0.1.10/README.md @@ -0,0 +1,47 @@ +# cfg-if + +[Documentation](https://docs.rs/cfg-if) + +A macro to ergonomically define an item depending on a large number of #[cfg] +parameters. Structured like an if-else chain, the first matching branch is the +item that gets emitted. + +```toml +[dependencies] +cfg-if = "0.1" +``` + +## Example + +```rust +cfg_if::cfg_if! { + if #[cfg(unix)] { + fn foo() { /* unix specific functionality */ } + } else if #[cfg(target_pointer_width = "32")] { + fn foo() { /* non-unix, 32-bit functionality */ } + } else { + fn foo() { /* fallback implementation */ } + } +} + +fn main() { + foo(); +} +``` + +# License + +This project is 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 `cfg-if` by you, as defined in the Apache-2.0 license, shall be +dual licensed as above, without any additional terms or conditions. diff --git a/vendor/cfg-if-0.1.10/src/lib.rs b/vendor/cfg-if-0.1.10/src/lib.rs new file mode 100644 index 000000000..6c5058dad --- /dev/null +++ b/vendor/cfg-if-0.1.10/src/lib.rs @@ -0,0 +1,176 @@ +//! A macro for defining `#[cfg]` if-else statements. +//! +//! The macro provided by this crate, `cfg_if`, is similar to the `if/elif` C +//! preprocessor macro by allowing definition of a cascade of `#[cfg]` cases, +//! emitting the implementation which matches first. +//! +//! This allows you to conveniently provide a long list `#[cfg]`'d blocks of code +//! without having to rewrite each clause multiple times. +//! +//! # Example +//! +//! ``` +//! cfg_if::cfg_if! { +//! if #[cfg(unix)] { +//! fn foo() { /* unix specific functionality */ } +//! } else if #[cfg(target_pointer_width = "32")] { +//! fn foo() { /* non-unix, 32-bit functionality */ } +//! } else { +//! fn foo() { /* fallback implementation */ } +//! } +//! } +//! +//! # fn main() {} +//! ``` + +#![no_std] +#![doc(html_root_url = "https://docs.rs/cfg-if")] +#![deny(missing_docs)] +#![cfg_attr(test, deny(warnings))] + +/// The main macro provided by this crate. See crate documentation for more +/// information. +#[macro_export] +macro_rules! cfg_if { + // match if/else chains with a final `else` + ($( + if #[cfg($($meta:meta),*)] { $($tokens:tt)* } + ) else * else { + $($tokens2:tt)* + }) => { + $crate::cfg_if! { + @__items + () ; + $( ( ($($meta),*) ($($tokens)*) ), )* + ( () ($($tokens2)*) ), + } + }; + + // match if/else chains lacking a final `else` + ( + if #[cfg($($i_met:meta),*)] { $($i_tokens:tt)* } + $( + else if #[cfg($($e_met:meta),*)] { $($e_tokens:tt)* } + )* + ) => { + $crate::cfg_if! { + @__items + () ; + ( ($($i_met),*) ($($i_tokens)*) ), + $( ( ($($e_met),*) ($($e_tokens)*) ), )* + ( () () ), + } + }; + + // Internal and recursive macro to emit all the items + // + // Collects all the negated cfgs in a list at the beginning and after the + // semicolon is all the remaining items + (@__items ($($not:meta,)*) ; ) => {}; + (@__items ($($not:meta,)*) ; ( ($($m:meta),*) ($($tokens:tt)*) ), $($rest:tt)*) => { + // Emit all items within one block, applying an appropriate #[cfg]. The + // #[cfg] will require all `$m` matchers specified and must also negate + // all previous matchers. + #[cfg(all($($m,)* not(any($($not),*))))] $crate::cfg_if! { @__identity $($tokens)* } + + // Recurse to emit all other items in `$rest`, and when we do so add all + // our `$m` matchers to the list of `$not` matchers as future emissions + // will have to negate everything we just matched as well. + $crate::cfg_if! { @__items ($($not,)* $($m,)*) ; $($rest)* } + }; + + // Internal macro to make __apply work out right for different match types, + // because of how macros matching/expand stuff. + (@__identity $($tokens:tt)*) => { + $($tokens)* + }; +} + +#[cfg(test)] +mod tests { + cfg_if! { + if #[cfg(test)] { + use core::option::Option as Option2; + fn works1() -> Option2<u32> { Some(1) } + } else { + fn works1() -> Option<u32> { None } + } + } + + cfg_if! { + if #[cfg(foo)] { + fn works2() -> bool { false } + } else if #[cfg(test)] { + fn works2() -> bool { true } + } else { + fn works2() -> bool { false } + } + } + + cfg_if! { + if #[cfg(foo)] { + fn works3() -> bool { false } + } else { + fn works3() -> bool { true } + } + } + + cfg_if! { + if #[cfg(test)] { + use core::option::Option as Option3; + fn works4() -> Option3<u32> { Some(1) } + } + } + + cfg_if! { + if #[cfg(foo)] { + fn works5() -> bool { false } + } else if #[cfg(test)] { + fn works5() -> bool { true } + } + } + + #[test] + fn it_works() { + assert!(works1().is_some()); + assert!(works2()); + assert!(works3()); + assert!(works4().is_some()); + assert!(works5()); + } + + #[test] + #[allow(clippy::assertions_on_constants)] + fn test_usage_within_a_function() { + cfg_if! {if #[cfg(debug_assertions)] { + // we want to put more than one thing here to make sure that they + // all get configured properly. + assert!(cfg!(debug_assertions)); + assert_eq!(4, 2+2); + } else { + assert!(works1().is_some()); + assert_eq!(10, 5+5); + }} + } + + trait Trait { + fn blah(&self); + } + + #[allow(dead_code)] + struct Struct; + + impl Trait for Struct { + cfg_if! { + if #[cfg(feature = "blah")] { + fn blah(&self) { + unimplemented!(); + } + } else { + fn blah(&self) { + unimplemented!(); + } + } + } + } +} diff --git a/vendor/cfg-if-0.1.10/tests/xcrate.rs b/vendor/cfg-if-0.1.10/tests/xcrate.rs new file mode 100644 index 000000000..e7b4a362a --- /dev/null +++ b/vendor/cfg-if-0.1.10/tests/xcrate.rs @@ -0,0 +1,14 @@ +cfg_if::cfg_if! { + if #[cfg(foo)] { + fn works() -> bool { false } + } else if #[cfg(test)] { + fn works() -> bool { true } + } else { + fn works() -> bool { false } + } +} + +#[test] +fn smoke() { + assert!(works()); +} diff --git a/vendor/cfg-if/.cargo-checksum.json b/vendor/cfg-if/.cargo-checksum.json new file mode 100644 index 000000000..93e07c191 --- /dev/null +++ b/vendor/cfg-if/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"5b2a8f6e5256957c029cf3a8912d51438e7faa5891c5c102c312f6d4599c1f00","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"2406e83ee174e30aa67f8ab266836fa78545012b196395aff37c152321e2c713","src/lib.rs":"54b0f108b0dc48a077c52c0bcd22b64ef4de083e5e2b7d405e50ae4d78224f1b","tests/xcrate.rs":"c0734dae6e63beafcd60bf53546115a2320735b51035c9e2387fdf9301580934"},"package":"baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"}
\ No newline at end of file diff --git a/vendor/cfg-if/Cargo.toml b/vendor/cfg-if/Cargo.toml new file mode 100644 index 000000000..13a32ba20 --- /dev/null +++ b/vendor/cfg-if/Cargo.toml @@ -0,0 +1,36 @@ +# 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 = "cfg-if" +version = "1.0.0" +authors = ["Alex Crichton <alex@alexcrichton.com>"] +description = "A macro to ergonomically define an item depending on a large number of #[cfg]\nparameters. Structured like an if-else chain, the first matching branch is the\nitem that gets emitted.\n" +homepage = "https://github.com/alexcrichton/cfg-if" +documentation = "https://docs.rs/cfg-if" +readme = "README.md" +license = "MIT/Apache-2.0" +repository = "https://github.com/alexcrichton/cfg-if" +[dependencies.compiler_builtins] +version = "0.1.2" +optional = true + +[dependencies.core] +version = "1.0.0" +optional = true +package = "rustc-std-workspace-core" + +[features] +rustc-dep-of-std = ["core", "compiler_builtins"] +[badges.travis-ci] +repository = "alexcrichton/cfg-if" diff --git a/vendor/cfg-if/LICENSE-APACHE b/vendor/cfg-if/LICENSE-APACHE new file mode 100644 index 000000000..16fe87b06 --- /dev/null +++ b/vendor/cfg-if/LICENSE-APACHE @@ -0,0 +1,201 @@ + 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 + Object form, made available under the License, as indicated by a + 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 + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. 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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. diff --git a/vendor/cfg-if/README.md b/vendor/cfg-if/README.md new file mode 100644 index 000000000..50b5e3b2d --- /dev/null +++ b/vendor/cfg-if/README.md @@ -0,0 +1,47 @@ +# cfg-if + +[Documentation](https://docs.rs/cfg-if) + +A macro to ergonomically define an item depending on a large number of #[cfg] +parameters. Structured like an if-else chain, the first matching branch is the +item that gets emitted. + +```toml +[dependencies] +cfg-if = "0.1" +``` + +## Example + +```rust +cfg_if::cfg_if! { + if #[cfg(unix)] { + fn foo() { /* unix specific functionality */ } + } else if #[cfg(target_pointer_width = "32")] { + fn foo() { /* non-unix, 32-bit functionality */ } + } else { + fn foo() { /* fallback implementation */ } + } +} + +fn main() { + foo(); +} +``` + +# License + +This project is 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 `cfg-if` by you, as defined in the Apache-2.0 license, shall be +dual licensed as above, without any additional terms or conditions. diff --git a/vendor/cfg-if/src/lib.rs b/vendor/cfg-if/src/lib.rs new file mode 100644 index 000000000..52bbbe0f3 --- /dev/null +++ b/vendor/cfg-if/src/lib.rs @@ -0,0 +1,176 @@ +//! A macro for defining `#[cfg]` if-else statements. +//! +//! The macro provided by this crate, `cfg_if`, is similar to the `if/elif` C +//! preprocessor macro by allowing definition of a cascade of `#[cfg]` cases, +//! emitting the implementation which matches first. +//! +//! This allows you to conveniently provide a long list `#[cfg]`'d blocks of code +//! without having to rewrite each clause multiple times. +//! +//! # Example +//! +//! ``` +//! cfg_if::cfg_if! { +//! if #[cfg(unix)] { +//! fn foo() { /* unix specific functionality */ } +//! } else if #[cfg(target_pointer_width = "32")] { +//! fn foo() { /* non-unix, 32-bit functionality */ } +//! } else { +//! fn foo() { /* fallback implementation */ } +//! } +//! } +//! +//! # fn main() {} +//! ``` + +#![no_std] +#![doc(html_root_url = "https://docs.rs/cfg-if")] +#![deny(missing_docs)] +#![cfg_attr(test, deny(warnings))] + +/// The main macro provided by this crate. See crate documentation for more +/// information. +#[macro_export] +macro_rules! cfg_if { + // match if/else chains with a final `else` + ($( + if #[cfg($meta:meta)] { $($tokens:tt)* } + ) else * else { + $($tokens2:tt)* + }) => { + $crate::cfg_if! { + @__items + () ; + $( ( ($meta) ($($tokens)*) ), )* + ( () ($($tokens2)*) ), + } + }; + + // match if/else chains lacking a final `else` + ( + if #[cfg($i_met:meta)] { $($i_tokens:tt)* } + $( + else if #[cfg($e_met:meta)] { $($e_tokens:tt)* } + )* + ) => { + $crate::cfg_if! { + @__items + () ; + ( ($i_met) ($($i_tokens)*) ), + $( ( ($e_met) ($($e_tokens)*) ), )* + ( () () ), + } + }; + + // Internal and recursive macro to emit all the items + // + // Collects all the negated cfgs in a list at the beginning and after the + // semicolon is all the remaining items + (@__items ($($not:meta,)*) ; ) => {}; + (@__items ($($not:meta,)*) ; ( ($($m:meta),*) ($($tokens:tt)*) ), $($rest:tt)*) => { + // Emit all items within one block, applying an appropriate #[cfg]. The + // #[cfg] will require all `$m` matchers specified and must also negate + // all previous matchers. + #[cfg(all($($m,)* not(any($($not),*))))] $crate::cfg_if! { @__identity $($tokens)* } + + // Recurse to emit all other items in `$rest`, and when we do so add all + // our `$m` matchers to the list of `$not` matchers as future emissions + // will have to negate everything we just matched as well. + $crate::cfg_if! { @__items ($($not,)* $($m,)*) ; $($rest)* } + }; + + // Internal macro to make __apply work out right for different match types, + // because of how macros matching/expand stuff. + (@__identity $($tokens:tt)*) => { + $($tokens)* + }; +} + +#[cfg(test)] +mod tests { + cfg_if! { + if #[cfg(test)] { + use core::option::Option as Option2; + fn works1() -> Option2<u32> { Some(1) } + } else { + fn works1() -> Option<u32> { None } + } + } + + cfg_if! { + if #[cfg(foo)] { + fn works2() -> bool { false } + } else if #[cfg(test)] { + fn works2() -> bool { true } + } else { + fn works2() -> bool { false } + } + } + + cfg_if! { + if #[cfg(foo)] { + fn works3() -> bool { false } + } else { + fn works3() -> bool { true } + } + } + + cfg_if! { + if #[cfg(test)] { + use core::option::Option as Option3; + fn works4() -> Option3<u32> { Some(1) } + } + } + + cfg_if! { + if #[cfg(foo)] { + fn works5() -> bool { false } + } else if #[cfg(test)] { + fn works5() -> bool { true } + } + } + + #[test] + fn it_works() { + assert!(works1().is_some()); + assert!(works2()); + assert!(works3()); + assert!(works4().is_some()); + assert!(works5()); + } + + #[test] + #[allow(clippy::assertions_on_constants)] + fn test_usage_within_a_function() { + cfg_if! {if #[cfg(debug_assertions)] { + // we want to put more than one thing here to make sure that they + // all get configured properly. + assert!(cfg!(debug_assertions)); + assert_eq!(4, 2+2); + } else { + assert!(works1().is_some()); + assert_eq!(10, 5+5); + }} + } + + trait Trait { + fn blah(&self); + } + + #[allow(dead_code)] + struct Struct; + + impl Trait for Struct { + cfg_if! { + if #[cfg(feature = "blah")] { + fn blah(&self) { + unimplemented!(); + } + } else { + fn blah(&self) { + unimplemented!(); + } + } + } + } +} diff --git a/vendor/cfg-if/tests/xcrate.rs b/vendor/cfg-if/tests/xcrate.rs new file mode 100644 index 000000000..e7b4a362a --- /dev/null +++ b/vendor/cfg-if/tests/xcrate.rs @@ -0,0 +1,14 @@ +cfg_if::cfg_if! { + if #[cfg(foo)] { + fn works() -> bool { false } + } else if #[cfg(test)] { + fn works() -> bool { true } + } else { + fn works() -> bool { false } + } +} + +#[test] +fn smoke() { + assert!(works()); +} |