0. 2. Both ::proc-macro-hack and the need to sometimes export custom types or traits lead to the two-crate pattern. Learn more about TeamsI am trying to write procedural macros that will accept a Rust enum like. The following snippet fails to compile: playground. Is there something else that has to be enabled or installed to turn this on? The User Manual. In that crate, create the implementation, annotated with # [proc_macro_attribute]. extern_options 1. unknown feature `proc_macro_span_shrink`. 8. 5. /deploy. pub fn source (&self) -> Span. toml directly. control_flow_guard 1. For more information on. 1 Compiling libc v0. Closed ia0 reviewed Sep 26, 2022. You switched accounts on another tab or window. I am not a software engineer or coder in any way, shape or form. anchor build -> stack offset exceeding max offset. @Alvra, by macro_rules you can't know about enum fields. #549. 45. 🔬 This is a nightly-only experimental API. ) Public API // p. 52/src/lib. Connect and share knowledge within a single location that is structured and easy to search. When called from within a procedural macro not using a nightly compiler, this method will always return None. 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. Function-like macros define macros that look like function calls. cargo/registry/src/index. (proc_macro_span #54725) Returns a Span that is a subset of self. io-6f17d22bba15001f/proc-macro2-1. 0. . So instead my procedural macro has to generate macro_rules macros, and those end up enforcing hygiene. Open eyecod-toppick opened this issue Jul 10, 2023 · 5 comments Open error[E0635]: unknown feature proc_macro_span_shrink while building av2 by Pip #212. 2. (proc_macro_span) Gets the ending line/column in the source file for this span. proc_macro_span. You signed in with another tab or window. 1. Ready to use solutions are available (see @timotree 's comment). 0a9c635. . Procedural Macros (and custom Derive) As you've seen throughout the rest of the book, Rust provides a mechanism called "derive" that lets you implement traits easily. 5. ## 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 than just mentioning it without a. lazy_cell. Fork 98. rs","contentType":"file"},{"name":"extra. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. proc-macro2 is a dependent library of the anchor framework. after () which give empty spans right at the start and end of the span. Pull requests 4. 12. Teams. g. (proc_macro_span_shrink) Creates an empty span pointing to directly before this span. My client project depends on this macro crate. Name. Compiler flags. Enabled when building with. Compiler flags; 1. (I hope rust-analyzer would then be able to point me back to the correct place in the proc-macro crate when looking for definitions generated by the proc. 9. 0 Compiling parking_lot_core v0. Also enabled unconditionally on nightly, in which case theProcedural macros allow you to run code at compile time that operates over Rust syntax, both consuming and producing Rust syntax. tls_model 2. cf_protection 1. Type. Interesting results though, that's 4 hours faster still so far. In an attempt to execute #5 , I've begun on this skeleton of a SPI-implementing macro. Compiler flags; 1. 1. dubek opened this issue Jun 29, 2023 · 2 comments Labels. cargo/registry/src/index. src_hash_algorithm 1. 15 and bring all the goodness and ease of use of # [derive (Debug)] to user-defined traits as well, such as Serde 's # [derive (Deserialize)]. This library serves two purposes: Bring proc-macro-like functionality to other contexts like build. Most of the time you want to use the macros. cf_protection 1. Sign up ProductQ&A for Solana software users and developersA support library for macro authors when defining new macros. 2 Answers. 24. 0 (90c541806 2023-05-31) I get the fol. 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 siteSolved. 8937393 What you did Tried to run the andr. $ rustc -V rustc 1. Feature gate: #! [feature (proc_macro_span_shrink)] This feature adds span. proc_macro_expand. dump_mono_stats_format 1. debug_info_for_profiling 1. extern crate proc_macro; use self::proc_macro::TokenStream; use syn::parse::{Parse, ParseStream, Result}; use syn::{parse_macro_input, Ident, Token}; // FIXME type Element = Ident; struct. When I build for native, everything works perfectly, but when I build for wasm, I get a number of errors thrown. jokerwyt June 15, 2022, 4:23pm 1. This ticket, like #850, is going to be a scratchp. Teams. Access private key data account or program from within Anchor program. You can use quote::quote to generate the output of the macro, and use # to insert the contents of a variable into the generated code. and generate a method for the enum that will let me convert an u8 into an allowed variant like this. 8. 6. 13. 9. rustup\toolchains\stable-x86_64-pc-windows-gnu` At the same time, in VSCode my rust-analyzer extension started failing. source. 27 Compiling proc-macro2 v1. llers/examples The proc-macro2 dependency at 1. If this Span wasn't generated from other macro expansions then the return value is the same as *self . The Unstable Book; 1. No other public items may be declared in proc-macro crates, but private items are fine. 8. #11238 shrink the span of errors from attribute macros and derives. dump_mono_stats_format 1. 0. // // "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. 6 Compiling memchr v2. Identifiers created with this span will be resolved as if they were written directly at the macro call location (call-site hygiene) and other code at the macro call site will be able to refer to them as well. branch_protection 1. 1. 0. to_string () != "bool" { quote_spanned! { ty. drias-0. 0. The issue was fixed via: proc-macro2 1. Anchor build fails due to a current Rust version (1. 9. profile 1. To opt into the additional APIs available in the most recent nightly compiler, the procmacro2_semver_exempt config flag must be passed to rustc. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". Docs. rs and main. Commit time. * and rust. dump_mono_stats_format 1. emit(); The problem is, the spanned method takes a proc_macro2::Span as an argument, a struct which has no constructor available. error[E0635]: unknown feature `proc_macro_span_shrink` --> $HOME/. Fork 98. 15. 10. before() and span. 0. 107 Compiling libc v0. C:Users das6OneDriveDesktopcodespace ust>cargo install tauri-cli Updating crates. arch-meson is causing solanum to be built with debug flags due to these lines in the source code at build-aux/cargo. Starting from Substrate dependency version polkadot-v0. Enabled on Rust // 1. Compiler flags; 1. Compiling autocfg v1. This can be useful for things like test. 4 Compiling racer-cargo-metadata v0. 0 · source. extern_options 1. 9 Compiling num-traits v0. 23 Compiling syn v1. 5. Java - Maven 編譯問題 (1) 11 Oct 2023; Java - How to compile and run a java program ?Finds out which toolchain it's been compiled with. error[E0635]: unknown feature proc_macro_span_shrink while building av2 by Pip #212. 0. Identifiers created with this span will be resolved as if they were written directly at the macro call location (call-site. 1. rust-analyzer Add an environment variable to test proc macros against various toolchains. Source of the Rust file `library/proc_macro/src/lib. dylib_lto 1. 10. rs: #! [feature (proc_macro_span) error [E0635]: unknown feature. 19 is dedicated to macros. More informationhas the side effect of updating a generated file in the end-user project that describes and utimately creates a SQLite Person table. dylib_lto 1. For example, if your data is merely “a list of sets of numbers”, maybe a Vec<Vec<f64>> will suffice. 3. These are equivalent to rustc's `Span::shrink_to_lo()` and `Span::shrink_to_hi()` but with a less cryptic name. There's not much else to see here as the. crates. Reload to refresh your session. The Unstable Book; 1. Reload to refresh your session. This preserves the original source code, including spaces and comments. Als. - rust/tool. source pub fn before(&self) -> Span. rs. 0 Compiling autocfg v1. 12. debug_info_for_profiling 1. 12. 3. dwarf_version 1. 0. 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, 2023Coolio. An impl Hash for proc_macro::Span could solve this issue somewhat nicely, in that users can freely chose the format of the identifier (e. // "wrap_proc_macro" // Wrap types from libproc_macro rather than polyfilling the whole API. extern_options 1. control_flow_guard 1. You switched accounts on another tab or window. 0 Compiling. Cannot build - unknown feature `proc_macro_span_shrink` 2. A wrapper around the procedural macro API of the compiler's proc_macro crate. arduino-hal is the batteries-included HAL for all Arduino & similar boards. You signed in with another tab or window. 15. check_cfg 1. sanitizer 1. This is a nightly-only experimental API. 3 Compiling lazy_static v1. Contribute to pvdrz/c-proc-macro development by creating an account on GitHub. cargo. Hi wang13245, I checked the issue and and can confirm it is associated with proc-macro2 v1. Syntax # [proc_macro_error] or # [proc_macro_error (settings. A common hack is to import the desired crate with a know name and use this. . We will polyfill those nightly-only APIs back to Rust 1. This method is semver exempt and not exposed by default. . 8. 15 Compiling crossbeam-utils v0. 15. sourceerror[E0635]: unknown feature proc_macro_span_shrink --> /home/shkr/. 6. I would then use quote_spanned!() to generate the proc-macro output based on those Spans. proc macro `main` not expanded: cannot find proc-macro server in sysroot `C:Userszerok. rs and main. emit_stack_sizes 1. check_cfg 1. source pub fn before(&self) -> Span. 6 Compiling quote v1. cf_protection 1. 📜 Source code examples. 2. )Have been running into ICE during . This is the git submodule => git subtree move. 4. This is what you call "unhygienic" and is equivalent to "copy and pasting". 70. You switched accounts on another tab or window. Building for aarch64-unknown-linux-gnu a program that depends on proc-macro2. (proc_macro_span #54725) The span for the origin source code that self was generated from. In that crate, create the implementation, annotated with # [proc_macro_attribute]. 768). 6. You switched accounts on another tab or window. emit_stack_sizes 1. (proc_macro_span #54725) The span for the origin source code that self was generated from. Star 590. 0. Sign up ProductSaved searches Use saved searches to filter your results more quicklyIn procedural macros there is currently no easy way to get this path. check_cfg. 0. crates. First of all, this means we’ll be using Python in our proc-macro crate. Crate proc_macro. 14. . Connect and share knowledge within a single location that is structured and easy to search. proc_macro_span. Here is a macro. control_flow_guard 1. The 1-indexed line in the source file on which the span starts or ends (inclusive). In your case, we can write this: let output = if ty. (proc_macro_span #54725) The span for the origin source code that self was generated from. crates. 4. This typically happens around resolution in macro expansion and has to do primarily with quote! I believe. 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. A support library for macro authors when defining new macros. control_flow_guard 1. 11. You signed out in another tab or window. However, this breaks importing the crate, as the proc-macro. 1. 0. Source of the Rust file `/home/runner/. 8. debug_info_for_profiling 1. Compiling proc-macro2 v1. You signed out in another tab or window. codegen_backend 1. 2. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have proc_macro_span_shrink. dwarf_version 1. 31 tasks. I tried this code: use std::future::Future; struct X; trait Tx {} fn main() { higher_order(f_x); higher_order_x(f_x); higher_order(f_tx); higher_order_tx(f_tx. 在 Rust 1. some scenarios in train dataset don't have 110 frames data for focal track id #209 opened Jun 27, 2023 by Xinchengzelin. Related posts. 2. Macros. 13. crates. I'm not familiar w/ the rust build system, but I was able to fix this. This library serves three purposes: Bring proc-macro-like functionality to other contexts like build. 43 Reference. 59/src/lib. rs:92:30 | 92 | feature(proc_macro_span, proc_macro_span_shrink. (proc_macro_span_shrink #87552) Creates an empty span pointing to. . Help, please! By the way, the code intelligence of the analyzer can run smoothly. You can sort of think of procedural macros as functions from an AST to another AST. Source of the Rust file `compiler/rustc_expand/src/proc_macro_server. I'll open an issue and point to this forum post as well. 11. 4. Unknown feature proc_macro_span_shrink · Issue #356 · dtolnay/proc-macro2 · GitHub. 5. So I used attribute proc macro and used it as a InnerAttribute( just did not want to write the attribute for each single function). Toggle navigation. Reload to refresh your session. . source pub fn before(&self) -> Span. extern_options 1. . #7805. I also had to pin proc-macros2 at =1. I've only written a few lines of Rust, and never a macro, so this is based on reading the relevant documentation and following the examples of the other macros in the directory (namely serial. io rather than using the compiler's built in proc-macro crate directly. 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. Cargo. . (proc_macro_diagnostic #54140) Adds a new child diagnostics message to self with the Level::Warning level, and the given spans and message. proc_macro. Nemo157 changed the title CI failing on "stable" compiler proc_macro_span feature used on "stable" builds Apr 27, 2019. codegen_backend 1. 3. 63. 5. 6. The Unstable Book; 1. Reload to refresh your session. 13. ## Problem `cargo +nightly doc` is giving a lot of warnings: broken links, naked URLs, etc. When running cargo build-bpf, I get an error like this:. 11 Compiling cfg-if v1. I encounter below error when run command anchor build. This is what you probably want to use for your projects. There is even a macro in quote which makes this easier: quote_spanned!. source. . 1 Answer. Saved searches Use saved searches to filter your results more quicklyQ&A for Solana software users and developersA span that resolves at the macro definition site. branch_protection 1. Note: When using Cargo, Procedural macro crates are. 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]. cargo/registry/src/rsproxy. cargo/registry/src. Then it spawns that toolchain's rust-analyzer proc-macro subcommand and uses that, for this proc macro. branch_protection 1. cargo. pub fn start(&self) -> LineColumn source. 10. 0. move_size_limit 1. 2, and build as nightly i'm getting the following not sure if this is a problem that can be resolved at this level error[E0635]: unknown feature proc_macro_span_shrink --> C:Us. Basically whenever I change something, the whole function is marked as problematic.