在Rust中,编写过程宏,必须在Cargo.toml中设置[lib]proc-macro = true,这样就导致该库只能用于编写过程宏代码,无法在其他库中编写proc-macro代码,比如在其他包中无法使用use proc_macro::TokenStream;,这样就很难对宏代码进行单元测试。 所以第三方提供了proc-macro2这样的包,可以在任何库类型中编写过程宏代码逻辑,...
In order for helper libraries or components of a macro to be testable in isolation, they must be implemented using proc_macro2. Usage [dependencies] proc-macro2 = "1.0" The skeleton of a typical procedural macro typically looks like this: extern crate proc_macro; #[proc_macro_derive(My...
How to fix it: update proc-macro2 to the latest version. proc_macro2 1.0.59 Fails to build with nightly-2023-06-28 but succeeds building on nightly-2023-06-27 Code Create a new binary project with cargo new --bin buildtest add dependency...
点对点技术（peer-to-peer， 简称P2P）又称对等互联网络技术，是一种网络新技术，依赖网络中参与者的计...
proc_macro2:: Span::call_site() 真香 完整 #[proc_macro_attribute] pub fn sorted( _args: proc_macro::TokenStream, input: proc_macro::TokenStream, ) -> proc_macro::TokenStream { let item = syn::parse_macro_input!(input as syn::Item); match solution1::solution(&item) { syn::Resu...
针对你遇到的“proc-macro server's api version (4) is newer than rust-analyzer's (2)”错误,这确实是一个版本不兼容的问题。下面是一些可能的解决步骤: 理解错误原因: 这个错误表明你的系统中运行的proc-macro服务器的API版本(4)比rust-analyzer当前支持的版本(2)要新。这通常发生在系统更新或者安装了新...
Re: Macro for PROC REPORT to Meet Appropriate Comparisons Posted 08-01-2016 10:56 AM (410 views) | In reply to turcay Hi: I didn't say it wasn't possible. I said you had to have working code for ALL possible types of HAVE files that you need to create. Without work...
%plots(data2.inputdataremoved, choline_f2a, WRPM_ss, snp180, rs8016556_C(FDR=0.0403323974); although If i replace the macro variables with these exact names it works outside the macro... 0 Likes Rick_SAS SAS Super FREQ Re: Problem with Proc SGplot in a macro Posted 07-21-201...
The paper introduces a macro program which enables the user to choose between PROC GLM and PROC MIXED, between ANOVA and ANCOVA, between CONTRAST statements and ESTIMATE statements. The program also gives the user a choice between an option with LSMEANS and without LSMEANS, with CONTRAST ...
题目要定义一个子程序,应采用以下伪指令组___。? PROC ; ;;;... ;;ENDPMACRO ; ;;... ;;ENDMSEGMENT;... ;;ENDSNAME ; ;;;... ;;END 相关知识点: 试题来源: 解析 PROC ; ;;;... ;;E 反馈 收藏