From: DongHun Kwak Date: Mon, 27 Feb 2023 05:05:10 +0000 (+0900) Subject: Import const-random-macro 0.1.15 X-Git-Tag: upstream/0.1.15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=276eb923b2cebda4b45c26b63c4a86eebbf8b48e;p=platform%2Fupstream%2Frust-const-random-macro.git Import const-random-macro 0.1.15 --- 276eb923b2cebda4b45c26b63c4a86eebbf8b48e diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json new file mode 100644 index 0000000..2cc3b00 --- /dev/null +++ b/.cargo_vcs_info.json @@ -0,0 +1,6 @@ +{ + "git": { + "sha1": "1a6acab0a5fee000a30125fb4dc9e0bc402a50dd" + }, + "path_in_vcs": "macro" +} \ No newline at end of file diff --git a/Cargo.toml b/Cargo.toml new file mode 100644 index 0000000..74f1ece --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,46 @@ +# 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 are reading this file be aware that the original Cargo.toml +# will likely look very different (and much more reasonable). +# See Cargo.toml.orig for the original contents. + +[package] +edition = "2018" +name = "const-random-macro" +version = "0.1.15" +authors = ["Tom Kaitchuck "] +description = "Provides the procedural macro used by const-random" +documentation = "https://docs.rs/const-random" +keywords = [ + "rust", + "constants", + "macro", +] +license = "MIT OR Apache-2.0" +repository = "https://github.com/tkaitchuck/constrandom" + +[lib] +proc-macro = true + +[dependencies.getrandom] +version = "0.2.0" + +[dependencies.once_cell] +version = "1.15" +features = [ + "race", + "alloc", +] +default-features = false + +[dependencies.proc-macro-hack] +version = "0.5.13" + +[dependencies.tiny-keccak] +version = "2.0.2" +features = ["shake"] diff --git a/Cargo.toml.orig b/Cargo.toml.orig new file mode 100644 index 0000000..344645c --- /dev/null +++ b/Cargo.toml.orig @@ -0,0 +1,19 @@ +[package] +name = "const-random-macro" +version = "0.1.15" +license = "MIT OR Apache-2.0" +repository = "https://github.com/tkaitchuck/constrandom" +documentation = "https://docs.rs/const-random" +authors = ["Tom Kaitchuck "] +keywords = ["rust", "constants", "macro"] +description = "Provides the procedural macro used by const-random" +edition = "2018" + +[lib] +proc-macro = true + +[dependencies] +proc-macro-hack = { version = "0.5.13" } +getrandom = "0.2.0" +tiny-keccak = { version = "2.0.2", features = ["shake"] } +once_cell = { version = "1.15", default-features = false, features = ["race", "alloc"] } diff --git a/LICENSE-APACHE b/LICENSE-APACHE new file mode 100644 index 0000000..16fe87b --- /dev/null +++ b/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. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + +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, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + +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 + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; 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 + comment syntax for the file format. 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/LICENSE-MIT b/LICENSE-MIT new file mode 100644 index 0000000..5afc2a7 --- /dev/null +++ b/LICENSE-MIT @@ -0,0 +1,25 @@ +Copyright (c) 2016 Amanieu d'Antras + +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/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..f711a13 --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,58 @@ +#[allow(unused_extern_crates)] +extern crate proc_macro; + +use proc_macro::*; +use proc_macro_hack::proc_macro_hack; +use std::iter::once; +mod span; +use crate::span::{gen_random_bytes, gen_random}; + + +/// Create a TokenStream of an identifier out of a string +fn ident(ident: &str) -> TokenStream { + TokenTree::from(Ident::new(ident, Span::call_site())).into() +} + +#[proc_macro_hack] +pub fn const_random(input: TokenStream) -> TokenStream { + match &input.to_string()[..] { + "u8" => TokenTree::from(Literal::u8_suffixed(gen_random())).into(), + "u16" => TokenTree::from(Literal::u16_suffixed(gen_random())).into(), + "u32" => TokenTree::from(Literal::u32_suffixed(gen_random())).into(), + "u64" => TokenTree::from(Literal::u64_suffixed(gen_random())).into(), + "u128" => TokenTree::from(Literal::u128_suffixed(gen_random())).into(), + "i8" => TokenTree::from(Literal::i8_suffixed(gen_random())).into(), + "i16" => TokenTree::from(Literal::i16_suffixed(gen_random())).into(), + "i32" => TokenTree::from(Literal::i32_suffixed(gen_random())).into(), + "i64" => TokenTree::from(Literal::i64_suffixed(gen_random())).into(), + "i128" => TokenTree::from(Literal::i128_suffixed(gen_random())).into(), + "usize" => { + let value: TokenStream = TokenTree::from(Literal::u128_suffixed(gen_random())).into(); + let type_cast: TokenStream = [value, ident("as"), ident("usize")] + .iter() + .cloned() + .collect(); + TokenTree::from(Group::new(Delimiter::Parenthesis, type_cast)).into() + } + "isize" => { + let value: TokenStream = TokenTree::from(Literal::i128_suffixed(gen_random())).into(); + let type_cast: TokenStream = [value, ident("as"), ident("isize")] + .iter() + .cloned() + .collect(); + TokenTree::from(Group::new(Delimiter::Parenthesis, type_cast)).into() + } + byte_array if byte_array.starts_with("[u8 ; ") && byte_array.ends_with(']')=> { + let len = byte_array[6..byte_array.len()-1].parse().unwrap(); + let mut random_bytes = vec![0; len]; + gen_random_bytes(&mut random_bytes); + let array_parts: TokenStream = random_bytes.into_iter().flat_map(|byte| { + let val = TokenTree::from(Literal::u8_suffixed(byte)); + let comma = TokenTree::from(Punct::new(',', Spacing::Alone)); + once(val).chain(once(comma)) + }).collect(); + TokenTree::from(Group::new(Delimiter::Bracket, array_parts)).into() + } + _ => panic!("Invalid type"), + } +} diff --git a/src/span.rs b/src/span.rs new file mode 100644 index 0000000..ab72bb0 --- /dev/null +++ b/src/span.rs @@ -0,0 +1,104 @@ +use proc_macro::Span; +use std::option_env; + +use once_cell::race::OnceBox; +use tiny_keccak::{Xof, Hasher, Shake}; + + +static SEED: OnceBox> = OnceBox::new(); + +fn get_seed() -> &'static [u8] { + &SEED.get_or_init(|| { + if let Some(value) = option_env!("CONST_RANDOM_SEED") { + Box::new(value.as_bytes().to_vec()) + } else { + let mut value = [0u8; 32]; + getrandom::getrandom(&mut value).unwrap(); + Box::new(value.to_vec()) + } + })[..] +} + +pub(crate) fn gen_random() -> T { + Random::random() +} + +pub(crate) fn gen_random_bytes(output: &mut [u8]) { + hash_stuff().squeeze(output) +} + +pub(crate) trait Random { + fn random() -> Self; +} + +fn hash_stuff() -> impl Xof { + let span = Span::call_site(); + let mut hasher = Shake::v256(); + hasher.update(get_seed()); + hasher.update(&format!("{:?}", span).as_bytes()); + hasher +} + +impl Random for u64 { + fn random() -> Self { + let mut output = [0; 8]; + hash_stuff().squeeze(&mut output); + Self::from_ne_bytes(output) + } +} + +impl Random for u128 { + fn random() -> Self { + let mut output = [0; 16]; + hash_stuff().squeeze(&mut output); + Self::from_ne_bytes(output) + } +} + +impl Random for u8 { + fn random() -> Self { + u64::random() as u8 + } +} + +impl Random for u16 { + fn random() -> Self { + u64::random() as u16 + } +} + +impl Random for u32 { + fn random() -> Self { + u64::random() as u32 + } +} + +impl Random for i8 { + fn random() -> Self { + i64::random() as i8 + } +} + +impl Random for i16 { + fn random() -> Self { + i64::random() as i16 + } +} + +impl Random for i32 { + fn random() -> Self { + i64::random() as i32 + } +} + +impl Random for i64 { + fn random() -> Self { + u64::random() as i64 + } +} + +impl Random for i128 { + fn random() -> Self { + u128::random() as i128 + } +}