and generate a method for the enum that will let me convert an u8 into an allowed variant like this. 31 tasks. check_cfg 1. 14. 12. 9. Stack Overflow error[E0635]: unknown feature `proc_macro_span_shrink` --> $HOME/. 0. 0, "natively" on NetBSD/sparc64 10. 9. source pub fn resolved_at (&self, other: Span) -> Span Creates a new span with the same line/column information as self but that resolves symbols as though it were at other. This library serves two purposes: Bring proc-macro-like functionality to other contexts like build. io. These are equivalent to rustc's `Span::shrink_to_lo()` and `Span::shrink_to_hi()` but with a less cryptic name. 4. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. dwarf_version 1. 7. cargo check --all-targets error[E0635]: unknown feature `proc_macro_span_shrink` --> /home/matthias/. 69. 0. 1. debug_info_for_profiling 1. 3. cargo/registry/src/index. 8 Compiling quote v1. dump_mono_stats 1. It only returns a result if the span corresponds to real source code. #7805. (proc_macro_span #54725) The span for the origin source code that self was generated from. However, since version 0. move_size_limit 1. Hi, yesterday I followed all the instruction how to setup this Rust stuff and tried to build "flipperzero-waveshare-nfc" with "cargo build". 17. if it should be in hexadecimal, only integers, UTF-8 unicode, or whatever). 4. Saved searches Use saved searches to filter your results more quickly The issue was fixed via: proc-macro2 1. There is even a macro in quote which makes this easier: quote_spanned!. check_cfg. More info shows below: info: Building example erase_storage Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have A span that resolves at the macro definition site. How can I create a Span for use in this diagnostic?proc-macro2. Check the server logs for additional info. When running cargo build I get the following error: Compiling proc-macro2 v1. 15. I would then use quote_spanned!() to generate the proc-macro output based on those Spans. . io-6f17d22bba15001f/proc-macro2. . If this Span wasn’t generated from other macro expansions then the return value is the same as *self. Upgrading the toolchain to the latest. 14. Literals created through this method have the Span::call_site() span by default, which can be configured with the set_span method below. 2. In your case, we can write this: let output = if ty. For anyone having errors here, please check your Rust Analyzer Language Server logs for any warnings or errors and check your configs for anything build related that might impact the build script execution of rust-analyzer, that is any of the rust-analyzer. 29+ as long as procmacro2_semver_exempt is not set, // because we can't emulate the unstable API without emulating everything // else. So please forgive me. . 0. 1 (stable) It was fixed in #1827, so if someone would be kind enough to bump the release, that would be groovy. debug_info_for_profiling 1. This doesn't work with `dlopen`, // so we can't use it by default in general, but we can use it for tools // and our own internal libraries. Merged kaczmarczyck closed this as completed in #555 Oct 10, 2022. 13. 10. llers/examples The proc-macro2 dependency at 1. Reload to refresh your session. 47中proc_macro_span_shrink 代码. , those with the same calling interface as a macro_rules! macro), are not yet supported in stable Rust, unless you use ::proc-macro-hack. If you want to do this yourself, have more flexibility or learn, you can write a procedural macro that will parse a backtrace (obtained from inside the function that. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. emit_stack_sizes 1. 🔬 This is a nightly-only experimental API. cf_protection 1. 39 is used. 15 Compiling hashbrown v0. rs","path. This is a nightly-only experimental API. New issue unknown feature proc_macro_span_shrink #401 Closed rlovell3 opened this issue Jul 26, 2023 · 2 comments commented Jul 26, 2023 may solve your problem. This setting is also implied if proc-macro-hack was detected. 8 error[E0635]: unknown feature `proc_macro_span_shrink` --> /build/celeste/src/cargo-home/registry/src/index. I'll open an issue and point to this forum post as well. Compiling rls-span v0. A support library for macro authors when defining new macros. 136 Compiling serde v1. dwarf_version 1. 0 nightly build. rs and main. 306 commits Files Permalink. The Unstable Book; 1. 56. Learn more about TeamsI am trying to write procedural macros that will accept a Rust enum like. 10. 0. 45. fn from_byte (byte: u8) -> Ty { match { 0 => Ty::A, 1 => Ty::B, _ => unreachable! () } } This is what I have implemented using proc_macro lib. Cannot build - unknown feature `proc_macro_span_shrink` 2. Type. 1. 5. // // "is_available" // Use proc_macro::is_available() to detect if the proc macro API is // available or needs to be polyfilled instead of trying to use the proc // macro API and catching a panic if it isn't available. A region of source code, along with macro expansion information. rs","contentType":"file"},{"name":"extra. 2. The Unstable Book; 1. control_flow_guard 1. pgx is a crate to write custom functions to postgres database. All proc_macro_span APIs tracked at rust-lang#54725 now. 7. e. 11. How to write a procedural macro. Some needed and suggested changes: git source should be cloned to an unversioned folder so that it doesn't have to be recloned (130MB) when the package is bumped. Thanks. control_flow_guard 1. Compiler flags. proc-macro. cargo/registry/src/rsproxy. 9. 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. 51/src/lib. 0. I've tried setting "rust-analyzer. 0a9c635. github","contentType":"directory"},{"name":"benches","path":"benches. proc_macro_span_shrink - The Rust Unstable Book. 71. 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]. If two identifiers have the same string, they will collide or shadow each other. extern_options 1. extern crate proc_macro; extern crate syn; #[macro_use] extern crate quote; We'll go through these one by one. Compiler flags; 1. 31. 8. 9%+) of SpanData instances can be made to fit within those 8 bytes. codegen_backend 1. (proc_macro_def_site) A span that resolves at the macro definition site. 4. 768). span () => compile_error! ("expected bool"); } } else { quote! { const #name: #ty = false; } }; For your faulty input, the compiler now prints this:vikramnitin9 on Nov 10, 2022. 11. github","contentType":"directory"},{"name":"benches","path":"benches. I was told that the rustup installer script at sh. io-6f17d22bba15001f/proc-macro2-1. . source pub fn source_file (&self) -> SourceFile When running deploy script(develop branch) to build openSK or erase_storage for nrf52840_dongle with ". C:Users das6OneDriveDesktopcodespace ust>cargo install tauri-cli Updating crates. 7. 56 Compiling cc v1. However, this breaks importing the crate, as the proc-macro. proc_macro_expand. The issue was fixed via: proc-macro2 1. 12. In this post, we’ll see how to detect if specific SIMD instructions are available on the exact CPU model we’re running on. Convert proc_macro2::Span to proc_macro::Span. 1. span () => compile_error! ("expected bool"); } } else { quote! { const #name: #ty = false; } }; For your faulty input, the compiler now prints this: vikramnitin9 on Nov 10, 2022. py --board=nrf52840_dongle_dfu --erase_storage --programmer=nordicdfu", it goes wrong showing "error[E0635]: unknown feature 'proc_macro_span_shrink'". Source of the Rust file `library/proc_macro/src/lib. Hi everyone! I am a newbie to Rust programming. CI is currently failing the documentation build due to this error: error[E0635]: unknown feature `proc_macro_span_shrink` --> /home/runner/. location_detail 1. alexcrichton added a commit to alexcrichton/rust that referenced this issue Oct 1, 2018. emit_stack_sizes 1. Can anybody help me with my issue? The text was updated successfully, but these errors were encountered: saltedcoffii commented on 2023-02-20 10:40 (UTC) (edited on 2023-02-20 10:45 (UTC) by saltedcoffii ) @rafaelff: sorry it took me so long to respond. If not, then the program is ill-formed and requires a diagnostic. moveline. 11. Is there something else that has to be enabled or installed to turn this on? The User Manual. Failed to load latest commit information. 1. You can sort of think of procedural macros as functions from an AST to another AST. rs, and we avoid needing incompatible ecosystems. A support library for macro authors when defining new macros. 3. The tracking issue for this feature is: #87552#87552pub fn source_text (&self) -> Option < String > [src] [ −] 🔬 This is a nightly-only experimental API. The proc-macro crate is part of the standard library, but you'll need a few other crates to make your macros. patch; 0004-mozilla-libavcodec58_91. cargo/registry. You signed in with another tab or window. 6 Compiling quote v1. rust-analyzer Add an environment variable to test proc macros against various toolchains. This library serves three purposes: Bring proc-macro-like functionality to other contexts like build. github","path":". , when not using the unstable ::proc_macro::quote! macro Crate proc_macro. We will polyfill those nightly-only APIs back to Rust 1. A wrapper around the procedural macro API of the compiler's proc_macro crate. pub fn join (&self, other: Span) -> Option < Span > [src] [ −] Create a new span encompassing self and other. Any time that derive appears in the user's code, the Rust compiler passes their data structure as tokens into our macro. As a exercise, I wanted to write a program like a little lint which would check the length of functions, and if the length is greater than the default max length, emit a warning. source pub fn before(&self) -> Span. branch_protection 1. io-6f17d22bba15001f/proc-macro2. Unknown feature proc_macro_span_shrink · Issue #356 · dtolnay/proc-macro2 · GitHub. That rendered rust-analyzer unusable in my case. This approach involved using the litrs crate to separate out the types of literals. Unlike a declarative macro, a procedural macro takes the form of a Rust function taking in a token stream(or two) and outputting a token stream. rs. . What is confusing to me is that this should have been fixed by dtolnay/proc-macro2#356, which shipped in proc-macro2 1. dtolnay closed this as completed Jul 28, 2023. This enables code using Syn to execute outside of the context of a procedural macro, such as in unit tests or build. A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case. You can sort of think of procedural macros as functions from an AST to another AST. codegen_backend. rs use proc_macro::TokenStream; use quote::quote; use syn::parse_macro_input; #[proc_macro_derive(use_self)] pub fn use_self. rs. ERROR test_me % cargo build Compiling libc v0. Reload to refresh your session. Returns None if self and other are from different files. fn call_site() -> Span: creates a span with call site hygiene. This method is semver exempt and not exposed by default. patch; 0003-mozilla-bmo998749. #549. debug_info_for_profiling 1. 5. saltedcoffii commented on 2023-02-20 10:40 (UTC) (edited on 2023-02-20 10:45 (UTC) by saltedcoffii ) @rafaelff: sorry it took me so long to respond. Name. 9. crates. 0" quote = "1. rust-analyzer Add a standalone rust-analyzer-proc-macro-srv binary. The Unstable Book; 1. View changes. Steps to reproduce it: anchor init counterapp cd counterapp anchor build error[E0635]: unknown feature `proc_macro_span_shrink` --> /Users/cons. Failed to spawn one or more proc-macro servers. 🔬 This is a nightly-only experimental API. I am not a software engineer or coder in any way, shape or form. . Returns None if self and other are from different files. Functionality in proc_macro that is not yet stable is not exposed by proc-macro2 by default. However, with rust edition 2018 and dropping extern crate declarations from lib. 0-nightly (839e9a6e1 2023-07-02) lighthouse: stable/unstable Present Behavior Failure to. The latest Fedora rust package fixes this. to_string () != "bool" { quote_spanned! { ty. A wrapper around the procedural macro API of the compiler's proc_macro crate. proc macro `main` not expanded: cannot find proc-macro server in sysroot `C:Userszerok. 1. next() with find_map(). 0 error[E0635]: unknown feature `proc_macro_span_shrink` --> /home/temaklin. 4. 2 The release number or commit hash of the version you're using. debug_info_for_profiling 1. Notice the body being passed from the foo call: foo (body: TokenStream)The last dependabot PR for proc-macro2 had been closed without comment. My project structure, thus, is as follows: ├── pg-worm │ ├── pg-worm-derive │ │ ├──. control_flow_guard 1. If it's provided by rustup, it adds the rust-analyzer component as needed. . 3. The . * Wed Feb 21 2018 Josh Stone <[email protected]. Beginner picoMini 2022 / General skill / shell / python / nc. 0. This setting is implied if #[proc_macro_error] is applied to a function marked as #[proc_macro], #[proc_macro_derive] or #[proc_macro_attribute]. dump_mono_stats 1. crates. Use proc-macro-nested if you require support for nested. error [E0635]:. I am writing an image compression software and want to provide the functionality of dragging and dropping files onto the window to compress them. . The Unstable Book; 1. com> - 1. pub fn report_literals_not_allowed(ident: &str, s: &Lit) -> TokenStream { syn::Error::new_spanned(ident, s. 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 siteproc_macro_span_shrink. pub fn source (&self) -> Span. So we just redefine the macro to the value we want. 54. cargo/registry/src/github. However, macro_rules! macros can be defined only using the. 4. Cargo. branch_protection 1. 0. crates. 7. For example, if your data is merely “a list of sets of numbers”, maybe a Vec<Vec<f64>> will suffice. Moreover, a function-like procedural macro (i. into()), "No literals allowed in the `macro` proc-macro" ). The vast majority (99. Hi wang13245, I checked the issue and and can confirm it is associated with proc-macro2 v1. 5. check_cfg 1. is_terminal. Compiler flags; 1. The tracking issue for this feature is: #98070#98070Help on spans for proc macros : r/rust. You signed out in another tab or window. rs`. Copy linkSome needed and suggested changes: git source should be cloned to an unversioned folder so that it doesn't have to be recloned (130MB) when the package is bumped. 3. 0. 8. 5. dump_mono_stats 1. If the nightly feature is disabled then everything is unhygienic and I think works with the equivalent of Span::call_site(), meaning that all the tokens produced by quote! ended up morally being used with Span::call_site(). control_flow_guard 1. source pub fn start(&self) -> LineColumn. ( proc_macro_span #54725) Returns the source text behind a span. Hi, Just a heads up, it looks like there is an issue with the proc_macro_span_shrink feature in the rust 1. 📜 Source code examples. 0. If the nightly feature is disabled then everything is unhygienic and I think works with the equivalent of Span::call_site(), meaning that all the tokens produced by quote! ended up morally being used with Span::call_site(). . 6. 0. 9. 0. 48. Error error[E0635]: unknown feature `proc. arduino-hal is the batteries-included HAL for all Arduino & similar boards. 5. Cannot build - unknown feature `proc_macro_span_shrink` 2. 0. I do not have a lot of experience using proc_macro, but based on this answer I found it was easy to adapt it to manually replace literals in the token tree without the use of the syn or quote crates. You signed out in another tab or window. 12. taiki-e commented May 7, 2019 (We probably can remove proc_macro_span from allow-features because dtolnay/proc-macro2#176 merged and proc-macro2 4. debug_info_for_profiling 1. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". 11. Fixes Issue #7 #9. 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. upon doing some more research (using google lol), I've found that this is an issue with proc-macro. jokerwyt June 15, 2022, 4:23pm 1. . 57. Learn more about Teams And it turns out that this is the same thing that has happened with your from_byte identifier: your code was emitting a from_byte with private hygiene / a def_site() span, which is something that normally never happens for method names when using classic macros, or classic proc-macros (i. Source of the Rust file `library/proc_macro/src/lib. dwarf_version 1. Any SpanData whose fields don’t fit into a Span are stored in a separate interner table, and the Span. 06 Oct 2022 solana blockchain. control_flow_guard 1. Another idea would be a unique_int!() -> usize/u128 macro, this would allow macro_rules! macros to use the functionality as well. If this Span wasn’t generated from other macro expansions then the return value is the same as *self. cf_protection 1. 59/src/lib. Cannot build - unknown feature `proc_macro_span_shrink` 2. location_detail 1. sh: It would probably be good enough to patch this file by not checking for the. 50 Compiling unicode-ident v1. drharryhe opened this issue Sep 11, 2023 · 4 comments. rust: 1. 0-2 - rhbz1546541: drop full-bootstrap; cmp libs before symlinking. codegen_backend 1. check_cfg 1. Most likely your protobuf-compiler version is outdated. 2. (proc_macro_span #54725) The span for the origin source code that self was generated from. . Syntax is described in the next section below. 5. 14. . check_cfg 1. cargo/registry/src/index. Fix Issue #7. . lizhuohua added a commit that referenced this issue on Nov 11, 2022. #11187 rename and use the 1. Syntax is described in the next section below. 0. (no external lib)A support library for macro authors when defining new macros. [lib] proc-macro = true. It is intentionally built to abstract away the differences between. Actions. . must_support_dlopen && !target. (proc_macro_span_shrink #87552) Creates an empty span pointing to. It had the following fixes in it. 0. Explains syn and quote a little. 1. The text was updated successfully, but these errors were encountered: All reactions.