Building for aarch64-unknown-linux-gnu a program that depends on proc-macro2. io Compiling autocfg v1. If this Span wasn't generated from other macro expansions then the return value is the same as *self. When not using a nightly compiler, only the span of. branch_protection 1. This setting is also implied if proc-macro-hack was detected. # HELP auth label # TYPE auth_errors counter auth_errors 4 Please note: doc comment(/// auth label) to create 1st line. It is fixed in proc-macro2 1. io-managed service, conceptually similar to docs. extraEnv, as explained in the manual) to flycheck=info. from the proc_macro2 docs. 60 appropriately address this. Closed drharryhe opened this issue Sep 11, 2023 · 4 comments Closed [bug] unknown feature proc_macro_span_shrink #7805. Notice the body being passed from the foo call: foo (body: TokenStream)Introduction. dump_mono_stats_format 1. In the Cargo. 6 Compiling syn v1. toml rust-toolchain src x86_64-unknown-none. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. You can use Rust workspaces to organize all these projects. It had the following fixes in it. Cannot build - unknown feature `proc_macro_span_shrink` 2. . 27 Compiling proc-macro2 v1. unknown feature `proc_macro_span_shrink`//could not compile xxx lib问题解决，此解决方案不管是在哪一个系统都可以解决此问题。 rust 开发语言 一个在本地很久没有编译过的项目，或者说从网上下载下来了一个开源的项目，只要开始编译就会报unknown feture的错误，或者could not. A support library for macro authors when defining new macros. This attribute performs the setup and cleanup necessary to make things work. 0. rs and main. 0 Compiling proc-macro2 v1. 1. export_executable_symbols 1. Feb 27, 2017 at 12:13. fennel-language-server is unable to install. 60+ dtolnay/proc-macro2#391. 29+ without semver exempt features. . 6. Reload to refresh your session. 29+ without semver exempt features. control_flow_guard 1. The vast majority (99. 61 with latest r-a. 47 error[E0635]: unknown feature `proc_macro_span_shrink` --> . This preserves the original source code, including spaces and comments. Milestone. 60 appropriately address this. 2 The release number or commit hash of the version you're using. 0. 43 : cargo update -p proc-macro2 --precise 1. 4. 4. Use an edition specific tag for questions that refer to code which requires a particular edition, like [rust-2018]. lib. The Rust Reference - explains the different types of macros and has got code samples for each of them. Also using winget you can install rust both for msvc or gnu. Saved searches Use saved searches to filter your results more quicklyWhen loading atsamd-rs BSPs, rust-analyzer crashes. rust#98223. In many cases, a macro can change the inferred types. dump_mono_stats_format 1. The only happens if I have proc macros and build scripts enabled. Functionality in proc_macro that is not yet stable is not exposed by proc-macro2 by default. It is fixed in proc-macro2 1. Contains a detailed walk-through on how to write a derive macro. 51 somewhere that needs to be bumped to 1. 15 Compiling crossbeam-utils v0. For instance, we can parse the previous token stream x + y into a binary expression, which is. Depending on beta or stable would be much more robust if there are only features being used that could be replaced by some macros or crates that work on stable. The current proc macro system can't even answer reliably simple questions like "does this function return a Result" without horrible hacks. Development. , those with the same calling interface as a macro_rules! macro), are not yet supported in stable Rust, unless you use ::proc-macro-hack. This library serves two purposes: Bring proc-macro-like functionality to other contexts like build. 0. A new ident can be created from a string using the Ident::new function. Each rule has two parts: a matcher, describing the syntax that it matches, and a transcriber , describing the syntax. On the current nightly (1. 14. Any time that derive appears in the user's code, the Rust compiler passes their data structure as tokens into our macro. 0. Unfortunately rust-lang/rust#60289 has revealed that proc-macro2 is using an unstable feature when it's built on nightly, which has broken those CI builds. 字符串 我通过将我的rust版本设置为特定的较旧的夜间构建版本找到了一个修复方法，但这对另一个项目不起作用，我真的想要一个更好的解决方案。我假设我使用的是某个东西的过时版本，或者我可以删除cargo. Reload to refresh your session. io rather than using the compiler's built in proc-macro crate directly. Everything implementing that trait can be interpolated. I've opened dtolnay/proc-macro2#175 to see if we can get a. abi_c_cmse_nonsecure_call 2. It must use the proc_macro2 crate in place of the proc_macro crate. Then it spawns that toolchain's rust-analyzer proc-macro subcommand and uses that, for this proc macro. 8. Merges proc_macro_mod, proc_macro_expr, proc_macro_non_items, and proc_macro_gen into a single feature: proc_macro_hygiene. Compiler flags; 1. 0-nightly (cae0791da 2023-10-05). You switched accounts on another tab or window. 58 Compiling cfg-if v1. Finally, make sure the toolchain has been installed and set as the default toolchain: rustup toolchain list. Returns None if self and other are from different files. the trait `From<proc_macro::Span>` is not implemented for `proc_macro2::Span` | = note: required because of the. codegen_backend 1. ## Summary of changes * update the `proc-macro2` dependency so that it can compile on latest Rust nightly, see dtolnay/proc-macro2#391 and dtolnay/proc-macro2#398 * allow the `private_intra_doc_links` lint, as linking to something that's private is always more useful. You signed in with another tab or window. adding use proc_macro2::Span; makes this compile successfully. Meanwhile proc_macro2. cargo. It is not necessarily limits to generating methods for the enum itself. 第一个是在这种情况下的解决方案，因为错误来自proc-macro 2 v1. One of the project maintainers explained to me that I was using a too-recent toolchain. A span expression of type Span, followed by =>, followed by the tokens to quote. Or how about a radically different, test driven, approach? The whole beauty of proc-macro2 is that while the API is compatible with proc-macro it's also usable outside of proc macros. 63+? the issue has recently (quite literally since I started typing this up lol) been resolved within proc-macro2, and versions >=1. io-6f17d22bba15001f/proc-macro2-1. 31 tasks. The term macro refers to a family of features in Rust: declarative macros with macro_rules! and three kinds of procedural macros:. io-6f17d22bba15001f/proc-macro2-1. The borsh and yew macros work fine for me on rustc 1. toml file, add the following: [lib] proc-macro = true [dependencies] quote = "1" proc-macro2 = "1. 276. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. The following snippet fails to compile: playground. Share. toml文件中的依赖项，但该错误并没有告诉我是哪. rs and main. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have You signed in with another tab or window. To reference Rust variables, use 'var, as shown in the. Perhaps my favorite feature in the Rust 2018 edition is procedural macros. A wrapper around the procedural macro API of the compiler's proc_macro crate. New Features #11112 evaluate constants in array repeat expression: #11193 add setting to replace specific proc-macros with dummy expanders:. Attribute macros - # [CustomAttribute] Procedural macros allow you to run code at compile time that operates over Rust syntax, both consuming and producing Rust syntax. Steps to reproduce: VSCode Version 1. proc-macro2. @Alvra, by macro_rules you can't know about enum fields. Improve this answer. You signed out in another tab or window. Add a comment |. The following snippet fails to compile: playground. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. Meanwhile proc_macro2 types. jghodd, there's a chance that you locally compiled rust, then your libllvm-13 got updated and now you have to recompile your rust to make it working again. * and rust. The issue of attribute macros invoked at the crate root is being tracked in rust-lang/rust#41430. server that's just the "rustup" string, but using an in-band value / picking "rustup" as a niche feels odd. However, I can only duplicate this on the toolchain that I compiled locally and not 1. Share. Motivation. Improve this question. ⓘLet’s now set up our crate so it can use the procedural macro features. The tracking issue for this feature is: #87552#87552Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site## Problem `cargo +nightly doc` is giving a lot of warnings: broken links, naked URLs, etc. Try setting the environment variable RA_LOG (either via terminal or by specifying rust-analyzer. e. The span of the invocation of the current procedural macro. When emitting PTX code, all vanilla Rust functions (fn) get translated to "device" functions. abi_amdgpu_kernel 2. Diagnostic::spanned(span, Level::Error, text). 50，并且错误在v1. 📜 Source code examples. A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case. dump_mono_stats 1. The lack of documentation in the hir and lint is resulting in a lot of slow println! exploration. 15 Compiling hashbrown v0. 0. serverFromRustup is that we. I'm not at all familiar with this project, so is there a dependency on proc-macro2 1. A span must be. However, when writing a #[proc_macro] macro, it is common to want to define a custom domain specific. 0" 4. dwarf_version 1. error[E0635]: unknown feature `proc_macro_span_shrink` --> /home/runner/. 0. into() } Which reports exactly where the user is passing a literal, which is a feature not allowed in the arguments of the attribute. hongfish opened this issue on Oct 27, 2022 · 3 comments. crates. rs. There are 3 kinds of hygiene (which can be seen by the constructors of the Span type): definition site ( unstable ): A span that resolves at the macro definition site. debug_info_for_profiling 1. #11806 fix async block type inference using containing function return type. You signed out in another tab or window. Saved searches Use saved searches to filter your results more quicklyStack Overflow | The World’s Largest Online Community for DevelopersRust includes several traits that you can derive, but it also lets you define your own. mentioned this issue. 0. So I used attribute proc macro and used it as a InnerAttribute( just did not want to write the attribute for each single function). 24. Fortunately, there is a way! The interpolation via # in quote! works via the ToTokens trait. 1. This library serves two purposes: Bring proc-macro-like functionality to other contexts like build. A proc-macro is at its core just a function exported from a crate with the proc-macro crate. You signed in with another tab or window. 0, please make it something more than syntax-based token replacement! Rust needs a way for macro authors to hook into the type system. 0. It will be a normal (non-macro) project that your macro will refer to. "] and there are various different values. Crate proc_macro. /target/debug/gtktest. Upgrading the toolchain to the latest version (rustup update) solves it (I tested with both rustc 1. Is there something else that has to be enabled or installed to turn this on? The User Manual doesn't mention anything else. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this siteWhat could problematic is the macro somehow getting a span which "escapes" the macro (so, eg, the span for the whole file containing the macro) and querying the source of that, but I assume that's not possible. Which seems to be using cargo. 2k;. , bugs or open design questions. 1 Answer. 526ca7c. rust-analyzer Add a standalone rust-analyzer-proc-macro-srv binary. before () and span. Break your problematic macros down into bite sized pieces that you can shove into a test. 2. That rendered rust-analyzer unusable in my case. You signed in with another tab or window. Trevor Trevor. . Panics if called from outside of a procedural macro. 0-nightly (83964c156 2023-07-08), I get error[E0635]: unknown feature 'proc_macro_span_shrink'. lang_items. Perhaps my favorite feature in the Rust 2018 edition is procedural macros. (proc_macro_span #54725) The span for the origin source code that self was generated from. This library serves two purposes: Bring proc-macro-like functionality to other contexts like build. It parses a TokenStream into a Rust Abstract Syntax Tree (AST), which is easier to work with than "raw tokens". 🔬 This is a nightly-only experimental API. rs). Restart the language server. 59 Compiling getrandom v0. pub fn report_literals_not_allowed(ident: &str, s: &Lit) -> TokenStream { syn::Error::new_spanned(ident, s. 0. A support library for macro authors when defining new macros. py build --stage 1 src/librustc_llvm Warning: no rules matched /home/jessic. Unfortunately rust-lang/rust#60289 has revealed that proc-macro2 is using an unstable feature when it's built on nightly, which has broken those CI builds. It seems that you are using the nightly version of rust, which we don't recommend using, as our project also aims at providing stability. However, we can't yet expand macros into statements on stable -- that's what the #![feature(proc_macro_hygiene)] is for. * configs. tl;dr; tokens produced by quote! use Span::call_site() when nightly is not enabled, and Span::def_site() when nightly is enabledrust-analyzer version: 3d63abf1d 2022-01-01 nightly rustc version: rustc 1. 24. Q&A for Solana software users and developersHi. Reload to refresh your session. 11. How to pin-point where parsing failed and give appropriate error?A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, . This token will. Get early access and see previews of new features. dump_mono_stats 1. When rust-analyzer proc-macros are enabled, apparently the macro gets called for every keystroke, so if I edit the name of the struct to PersonTwo, I end up with Person, PersonT. emit_stack_sizes 1. 10. 768). It will do so by first going into the construct's syntax and its key parts and then following it up with more general information that one should at least be aware of. 60中根据this issue被修复。核心问题实际上不是上述任何一种可能性（类型），因为在开发过程中根据this PR对一个特性进行了 * 重命名 *。 如何找到有问题的依赖项？The Rust Programming Language - the official Rust book which is freely available online. I am uncertain whether this is the same bug, but I am able to duplicate this message on a rustc that I compiled myself locally (toolchain override msp430-fix- name not important). This RFC is to gather final feedback on stabilizing the new feature resolver in Cargo. Make procedural macros unit testable. Closed. 5. 4,560 asked Oct 27 at 0:59 1 vote 2 answers 89 views How to tell why an "unknown feature" feature is needed? I'm getting the following error: error [E0635]: unknown. nightly-2020-03-24 x86_64-unknown-none. What is confusing to me is that this should have been fixed by dtolnay/proc-macro2#356, which shipped in proc-macro2 1. The Unstable Book; 1. Similarly to macro_rules! macros, they’re more flexible than functions; for example, they can take an unknown number of arguments. No branches or pull requests. A support library for macro authors when defining new macros. 768). Summary. 1. Access private key data account or program from within Anchor program. Active and inert attributes. //! //! This library, provided by the standard distribution, provides the types //! consumed in the interfaces of procedurally defined macro definitions such as //! function-like macros `#[proc_macro]`, macro attributes `#[proc_macro_attribute]` and //! custom derive. debug_info_for_profiling 1. call(Ident::parse_any) when parsing to match the behaviour of Ident::new. 0 or the nightly on Jun. 63+?the issue has recently (quite literally since I started typing this up lol) been resolved within proc-macro2, and versions >=1. A wrapper around the procedural macro API of the compiler’s proc_macro crate. Procedural macros, on the other hand, allow you to operate on the abstract syntax tree (AST) of the Rust code it is given. 2. 0-nightly (794d0a825 2023-10-03), rustc 1. The command produce me a lot of errors and problems i following the below to make it work. 2. 43 . Meanwhile proc_macro2. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. Though, we don't stop users from using. 58 Compiling tokio v1. source. , when not using the unstable. Compiler flags; 1. Internal ImprovementsSaved searches Use saved searches to filter your results more quicklyThe latest Fedora rust package fixes this. {span => | ^^^^^ ambiguous name | = note: ambiguous because of a conflict between a `macro_rules` name and a non-`macro_rules` name from another module note: `parse_quote_spanned` could refer to the macro defined here jghodd, there's a chance that you locally compiled rust, then your libllvm-13 got updated and now you have to recompile your rust to make it working again. I was expanding the struct within the #[component] macro but leaving as-is the #[prop] attribute. Step 08-unrecognized-attributes wants you to handle the car where the field modifier has a misspelled portion (eac instead of each)But you can implement the many_greetings! example as a procedural macro. Finds out which toolchain it's been compiled with. //# TYPE auth_errors. cargo. 9. CI is currently failing the documentation build due to this error: error[E0635]: unknown feature `proc_macro_span_shrink` --> /home/runner/. The suggested fix is to keep your rust-analyzer updated. 8. Modify the. 0-nightly), compilation fails with this error: error[E0635]: unknown feature `proc_macro_span_shrink` --> /home/saverio/. Custom #[derive] macros that specify code added with the derive attribute used on structs and. error: `cannot find attribute in this scope` when using custom proc_macro with attributes written with darling in rust. Reload to refresh your session. cargo/registry/src/rsproxy. macro_rules allows users to define syntax extension in a declarative way. When I view cargo tree I only see dependencies on 1. tl;dr; tokens produced by quote! use Span::call_site() when nightly is not enabled, and Span::def_site() when nightly is enabled rust-analyzer version: 3d63abf1d 2022-01-01 nightly rustc version: rustc 1. Learn more about TeamsWhen nightly is enabled, however, the quote! macro is actually under the hood using Span::def_site() everywhere (it was basically just ignored without the nightly feature). The test attribute is inert when compiling for tests and active otherwise. alexcrichton changed the title Only the presence of futures-await regresses error-chain-derive TokenStream::parse does not resolve with Span::call_site () C-bug. after () which give empty spans right at the start and end of the span. It only returns a result if the span corresponds to real source code. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. Compiling ppv-lite86 v0. I see you switched to renovate now but I wonder if it's working correctly, since I don't see. Related: extract_rust_hdl_interface, rust_hls, rust_hls, rust_hls_macro, rust_hls_macro_lib, wrap_verilog_in_rust_hdl_macro See also: cargo-careful, serde_spanned, rmp, queued, mpi, janus_messages, rmpv, prodash, crossbeam-channel, minitrace, cargo-all-features. 62. . profile 1. 8. sysroot": "/path/to/sysroot" with the output of that command fixed the problem, I just had to restart rust-analyzer afterwards. has the side effect of updating a generated file in the end-user project that describes and utimately creates a SQLite Person table. $ rustc -V rustc 1. crates. rs","path. cargo 1. 0a9c635. jtmoon79 changed the title cargo build nightly fails: _error[E0635]: unknown feature proc_macro_span_shrink_ cargo build nightly fails: error[E0635]: unknown feature proc_macro_span_shrink Jul 4, 2023. 0. IMO, it's always good to follow the latest Polkadot release CI's Rust toolchain. This library, provided by the standard distribution, provides the types consumed in the interfaces of procedurally defined macro definitions such as function-like macros #[proc_macro], macro attributes #[proc_macro_attribute] and custom derive attributes#[proc_macro_derive]. Unlike proc_macro2::Span, the proc_macro::Span type can only exist within the context of a procedural macro. How to write a procedural macro. cf_protection 1. Building lighthouse on later versions of nightly fail due to proc-macro2. syn fails to compile on raspberry pi (ARMv7) rust-lang/rust#56501 syn fails to compile on raspberry pi (ARMv7) Cannot compile proc-macro2 v1. Rusty_retiree_5659. This setting is also implied if proc-macro-hack was detected. This caused the compiler to search for meaning for. 4. cargo. 6. Reserves capacity in a collection for the given number of additional elements. They also differ in the ways the compiler and. The downside of having an option like rust-analyzer. 12. When I view cargo tree I only see dependencies on 1. Unlike proc_macro2::Span, the proc_macro::Span type can only exist within the context of a procedural macro. 3. self_profile 1. 0 nightly build. enable": true in both my User and Workspace settings, but I still get the unresolved-proc-macro lint in the editor. debug_info_for_profiling 1. (Just like shrink_to_lo () and shrink_to_hi () inside rustc. 4. You signed out in another tab or window. You signed out in another tab or window. Panics if called from outside of a procedural macro. This setting is implied if #[proc_macro_error] is applied to a function marked as #[proc_macro], #[proc_macro_derive] or #[proc_macro_attribute]. rs","contentType":"file"},{"name":"extra. 1. That rendered rust-analyzer unusable in my case. 12. 5. io. 1 (stable) It was fixed in #1827, so if someone would be kind enough to bump the release, that would be groovy. 73. 0-nightly (839e9a6e1 2023-07-02) You signed in with another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Meanwhile proc_macro2 types may exist anywhere including non-macro code. You signed out in another tab or window. You switched accounts on another tab or window. This constructor will create a literal like 1. rs and main. Reload to refresh your session. toml. There should be no space before the => token.