Source of the Rust file `library/proc_macro/src/lib. . Identifiers created with this span will be resolved as if they were written directly at the macro call location (call-site. extern_options 1. 8 Compiling quote v1. 14. #11187 rename and use the 1. e1fb347. Code. location_detail 1. There are certainly a category of users who actually don't mind small or moderate breaking changes, so currently Rust loses value on both: giving features to these users earlier, 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 Coolio. control_flow_guard 1. export_executable_symbols 1. pub fn join (&self, other: Span) -> Option < Span >. Notifications. (proc_macro_span_shrink #87552) Creates an empty span pointing to. You signed in with another tab or window. move_size_limit 1. Successful merges: #85200 (Ignore derived Clone and Debug implementations during dead code analysis) #86165 (Add proc_macro::Span::{before, after}. source. 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]. dump_mono_stats 1. You signed out in another tab or window. Cargo. 1. The span location is taken from the call-site. 50 Compiling unicode-ident v1. unknown feature `proc_macro_span_shrink` 06 Oct 2022 solana blockchain . You switched accounts on another tab or window. These are equivalent to rustc's `Span::shrink_to_lo()` and `Span::shrink_to_hi()` but with a less cryptic name. Repository owner locked and limited conversation to collaborators Nov 16, 2023. // "proc_macro_span" // Enable non-dummy behavior of Span::start and Span::end methods which // requires an unstable compiler feature. 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 site{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". drias 0. 55 proc macro ABI for 1. I am not a software engineer or coder in any way, shape or form. The borsh and yew macros work fine for me on rustc 1. dylib_lto 1. If it has that value, then everything is great. codegen_backend 1. com> - 1. The Rust Reference - explains the different types of macros and has got code samples for each of them. Internal Improvements #11115 refactor: avoid separate traversal in Replace filter_map(). [lib] proc-macro = true. lizhuohua added a commit that referenced this issue on Nov 11, 2022. Convert proc_macro2::Span to proc_macro::Span. rs:92:30 | 92 | feature(proc_macro_span, proc_macro_span_shrink. This preserves the original source code, including spaces and comments. 0. 0 Updating crates. proc-macro. github","contentType":"directory"},{"name":"benches","path":"benches. 13. dump_mono_stats 1. 1. extern_options 1. 0. cargo/registry/src/github. In your case, we can write this: let output = if ty. Repeat with any proc macros that need expanding (which may spawn several toolchains, if different cargo. Reply matklad September 19, 2023, 9:34am 2. * Wed Feb 21 2018 Josh Stone <[email protected]. Unlike proc_macro2::Span, the proc_macro::Span type can only exist within the context of a procedural macro. A support library for macro authors when defining new macros. 4. This library serves two purposes: Bring proc-macro-like functionality to other contexts like build. Most likely your protobuf-compiler version is outdated. cf_protection 1. dylib_lto 1. codegen_backend 1. 0. crates. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have proc-macro2. #11157 remove SemanticScope::speculative_resolve_as_mac. patch. 58 Compiling cfg-if v1. Reload to refresh your session. So we just redefine the macro to the value we want. If this Span wasn’t generated from other macro expansions then the return value is the same as *self. 47中proc_macro_span_shrink 代码. 7. 12. io-6f17d22bba15001f/proc-macro2-1. 2. 0 Compiling proc-macro-error-attr v1. Here the logs. . (proc_macro_def_site) A span that resolves at the macro definition site. So those dependencies wouldn't be checked/downloaded/compiled when the proc macro crate is compiled, but the compiler could make sure that those dependencies are present in the crate using the proc macro. 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. Rust v1. rs. proc macros; decl macros; You can find all the pedagogical examples of macros shown in this article in this repo 🌟 Please star the r3bl-open-core repo on github if you like it 🙏. Panics if called from outside of a procedural macro. 5. 3. // "wrap_proc_macro" // Wrap types from libproc_macro rather than polyfilling the whole API. 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 `main` not expanded: cannot find proc-macro server in sysroot `C:Userszerok. emit_stack_sizes 1. 9 Compiling windows_x86_64_msvc v0. 0. lizhuohua added a commit that referenced this issue on Nov 11, 2022. 2. cargo. fn def_site() -> Span: this is what you are after. The Unstable Book; 1. Panics if called from outside of a procedural macro. 11. lizhuohua completed in #9 on Nov 11, 2022. 0. Reload to refresh your session. 9. e. The issue was fixed via: proc-macro2 1. You signed out in another tab or window. 1. alexcrichton added a commit to alexcrichton/rust that referenced this issue Oct 1, 2018. into() } Which reports exactly where the user is passing a literal, which is a feature not allowed in the arguments of the attribute. You switched accounts on another tab or window. 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. Reload to refresh your session. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. 对比不同版本的proc-macro2，去掉本地库中proc-macro2-1. This is a nightly-only experimental API. source pub fn resolved_at (&self, other: Span) -> Span Creates a. Then it spawns that toolchain's rust-analyzer proc-macro subcommand and uses that, for this proc macro. I'll open an issue and point to this forum post as well. 0. 139 Compiling cfg-if v1. 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. 6. pub fn source (&self) -> Span. crates. $ rustc -V rustc 1. Describe the bug Upon loading the workspace in VSCode with rust-analyzer extension, the "Rust Analyzer Language Server" output shows tons of crash stacktraces. io-6f17d22bba15001f/proc-macro2-1. rs and main. In that crate, create the implementation, annotated with # [proc_macro_attribute]. ( proc_macro #38356) [ −] The 0-indexed column (in UTF-8 characters) in the source file on which the span starts or ends (inclusive). 0" quote = "1. You signed in with another tab or window. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. Fixes Issue #7 #9. Building for aarch64-unknown-linux-gnu a program that depends on proc-macro2. Asking for help, clarification, or responding to other answers. View changes. 7. 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 siteCompile error: rror[E0635]: unknown feature `proc_macro_span_shrink` --> /Users/xus/. to_string () != "bool" { quote_spanned! { ty. My client project depends on this macro crate. control_flow_guard 1. ( proc_macro_span #54725) Returns the source text behind a span. 8. extern_options 1. Remove various prints from file lock. Compiler flags; 1. Feature gate: #! [feature (proc_macro_span_shrink)] This feature adds span. 14. patch; 0004-mozilla-libavcodec58_91. e. 13 rustwasm/wasm-bindgen#719 Cannot compile proc-macro2 v1. Use proc-macro-nested if you require support for nested. Unknown feature proc_macro_span_shrink · Issue #356 · dtolnay/proc-macro2 · GitHub. cf_protection 1. source. cf_protection 1. location_detail 1. 8. 14. dump_mono_stats_format 1. C-bug Category: This is a bug. branch_protection 1. (proc_macro #38356) The span for the origin source code that self was generated from. I tried to build the rust compiler, version 1. 1. The Unstable Book. py --board=nrf52840_dongle_dfu --erase_storage --programmer=nordicdfu", it goes wrong showing "error[E0635]: unknown feature 'proc_macro_span_shrink'". 0 Compiling version_check v0. 6 Compiling quote v1. PicoCTF - Glitch cat 30 Aug 2022 picoCTF Challenge Tags. cf_protection 1. crates. check_cfg 1. /x build run right after git pull upstream master inside my fork of the rust repo: ICE when fork is maybe 50+ commits behind (ie, 1 day) No ICE when fork is small. cargo/registry/src/index. 3. Click Trust Center > Trust Center Settings > Trusted Locations. When called from within a procedural macro not using a nightly compiler, this method will always return None. debug_info_for_profiling 1. dylib_lto 1. Procedural macros must be defined in a crate with the crate type of proc-macro. extern_options 1. Procedural macros allow you to run code at compile time that operates over Rust syntax, both consuming and producing Rust syntax. Closed. control_flow_guard 1. rs is an unofficial list of Rust/Cargo crates, created by. 0. Cargo. crates. You signed out in another tab or window. 3. Compiler flags; 1. Syn is a parsing library for parsing a stream of Rust tokens into a syntax tree of Rust source code. Compiler flags; 1. emit_stack_sizes 1. 2 The release number or commit hash of the version you're using. (proc_macro_span_shrink) Creates an empty span pointing to directly before this span. // // "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. E-needs-mcve Call for participation: This issue needs a Minimal Complete and Verifiable Example P-medium Medium priority regression-from-stable-to-nightly Performance or correctness regression from stable to nightly. However, this breaks importing the crate, as the proc-macro. 2. emit_stack_sizes 1. Language featuresunknown 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. . 2. 3. 14. 1. 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. 7. Check the server logs for additional info. cf_protection 1. 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. However, macro_rules! macros can be defined only using the. Reload to refresh your session. The tracking issue for this feature is: #56354#56354Tour 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 siteThis trick takes advantage of the fact that the C and C++ languages both permit a macro symbol to be defined twice, provided that the second definition is identical to the first. 8. 48. Types from proc_macro are entirely specific to procedural macros and cannot ever exist in code outside of a procedural macro. (&self, other: Creates a new span with the same line/column information as but that resolves symbols as though it were at . rs and main. A support library for macro authors when defining new macros. emit_stack_sizes 1. patch; 0002-Bug-1504834-XULText-AA-fix-BE. When I view cargo tree I only see dependencies on 1. #1160). rust-analyzer Add an environment variable to test proc macros against various toolchains. At its core, rust-analyzer is a for semantic analysis of Rust code as it changes over time. Okay, now that compiling and running as separate steps works, the next challenge is to try to move the first step to the procedural macro, so it happens at compile time. Sign up ProductQ&A for Solana software users and developersA support library for macro authors when defining new macros. The Unstable Book; 1. . Compiling autocfg v1. Syn operates on the token representation provided by the proc-macro2 crate from crates. The Rust Unstable Book. The build environment is setup via buildroot. Docs. Function-like macros are newly stable to the 2018 edition and allow defining. 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-macro2. Closed. 4. extern_options 1. noticed when i'm using a crate that relies on der-parsers 8. I want to create a macro that prints "Hello" a specified number of times. 8. 2. branch_protection 1. branch_protection 1. codegen_backend 1. 43 due to it needing proc_macro_span_shrink from a later Rust version. 9. rs with this. 5. 13. 8. 7. When running cargo build I get the following error: Compiling proc-macro2 v1. The Unstable Book; 1. 9. location_detail 1. 17. 31 tasks. Here is an overview: arduino-hal. io is big enough and stable enough that it seems unlikely for "preview" subset to grow too large. By default, nested invocations are not supported i. ReplyThere's of course a risk that this will split the ecosystem into "stable" and "preview" dialects, but I won't worry about that much: the crates. 过程宏相比于声明宏的灵活度更加高，其本质是输入一段 Rust 的 AST 产生一段 AST 的. You signed out in another tab or window. cf_protection 1. ) I used the project t. source pub fn before(&self) -> Span. 5. [root@qlh liquid]# cargo build Compiling proc-macro2 v1. dump_mono_stats 1. All proc_macro_span APIs tracked at rust-lang#54725 now. 0 Compiling proc-macro2 v1. Cargo. Compiler flags; 1. $ cargo tree -i proc-macro2 proc-macro2 v1. Based on the nature of the DSL, it is not possible for me to use any Span from the input TokenStream. 50 Compiling unicode-ident v1. 1. 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]. A support library for macro authors when defining new macros. To Reproduce Steps to reproduce the behavior: cargo install cargo-generate --locked Installation fails with error[E0635]: unknown feature `proc_macro_span_shrink. 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. extern_options 1. The suggested fix is to keep your rust-analyzer updated. 11. dwarf_version 1. 1. 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. When I build for native, everything works perfectly, but when I build for wasm, I get a number of errors thrown. drias-0. toml Outdated Show resolved Hide resolved. eyecod-toppick opened this issue Jul 10, 2023 · 5 comments Comments. dylib_lto 1. Syntax # [proc_macro_error] or # [proc_macro_error (settings. 0 Compiling autocfg v1. debug_info_for_profiling 1. I had used a nightly version I had on hand, unaware that rustup should be used to install the project-specific version of the toolchain as specificied in the project's rust-toolchain file. (proc_macro_span #54725) 创建一个包含 self 和 other 的新跨度。. 56 Compiling cc v1. #549. 🔬 This is a nightly-only experimental API. branch_protection 1. There's not much else to see here as the. . Actions. 12. dylib_lto 1. proc_macro_span. 59 Compiling getrandom v0. export_executable_symbols 1. cargo/registry/src/index. . cf_protection 1. You switched accounts on another tab or window. branch_protection 1. A support library for macro authors when defining new macros. Which seems to be using cargo. arch-meson is causing solanum to be built with debug flags due to these lines in the source code at build-aux/cargo. 1. codegen_backend 1. Copy link Member. So instead my procedural macro has to generate macro_rules macros, and those end up enforcing hygiene. Describe the bug This is part of clippy's pedantic lint group so it's not on by default, but some part of the tauri::command macro must generate items after they are used in statements: htt. Source of the Rust file `library/proc_macro/src/lib. is_terminal. (proc_macro_span #54725) The span for the origin source code that self was generated from. 5. 45 中，Rust 的 卫生宏 Hygienic macro 迎来了 stable 版本，这意味着 过程宏 Procedural macro 和 声明宏 Declare macro 板块全面稳定。. 3. 72. You can also generate custom functions if you wanted to. check_cfg 1. Tag: v0. This library serves two purposes: Bring proc-macro-like functionality to other contexts like build. 15. It's entirely conceivable that this issue is or was. 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. 2. That is, if adding macros to a batch compiler takes X amount of work, making them play nicely with all IDE features takes X². cargo egistrysrcindex. 1 error[E0635]: unknown feature proc_macro_span_shrink --> C:Users oger. emit_stack_sizes 1. branch_protection 1. Macros operate on a list of tokens provided by the compiler and return a list of tokens that the macro use is replaced by.