From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/proc-macro/auxiliary/custom-quote.rs | 32 ++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/test/ui/proc-macro/auxiliary/custom-quote.rs (limited to 'src/test/ui/proc-macro/auxiliary/custom-quote.rs') diff --git a/src/test/ui/proc-macro/auxiliary/custom-quote.rs b/src/test/ui/proc-macro/auxiliary/custom-quote.rs new file mode 100644 index 000000000..3b7811748 --- /dev/null +++ b/src/test/ui/proc-macro/auxiliary/custom-quote.rs @@ -0,0 +1,32 @@ +// force-host +// no-prefer-dynamic +// ignore-tidy-linelength + +#![feature(proc_macro_quote)] +#![crate_type = "proc-macro"] + +extern crate proc_macro; +use std::iter::FromIterator; +use std::str::FromStr; +use proc_macro::*; + +#[proc_macro] +pub fn custom_quote(input: TokenStream) -> TokenStream { + let mut tokens: Vec<_> = input.into_iter().collect(); + assert_eq!(tokens.len(), 1, "Unexpected input: {:?}", tokens); + match tokens.pop() { + Some(TokenTree::Ident(ident)) => { + assert_eq!(ident.to_string(), "my_ident"); + + let proc_macro_crate = TokenStream::from_str("::proc_macro").unwrap(); + let quoted_span = proc_macro::quote_span(proc_macro_crate, ident.span()); + let prefix = TokenStream::from_str(r#"let mut ident = proc_macro::Ident::new("my_ident", proc_macro::Span::call_site());"#).unwrap(); + let set_span_method = TokenStream::from_str("ident.set_span").unwrap(); + let set_span_arg = TokenStream::from(TokenTree::Group(Group::new(Delimiter::Parenthesis, quoted_span))); + let suffix = TokenStream::from_str(";proc_macro::TokenStream::from(proc_macro::TokenTree::Ident(ident))").unwrap(); + let full_stream = TokenStream::from_iter([prefix, set_span_method, set_span_arg, suffix]); + full_stream + } + _ => unreachable!() + } +} -- cgit v1.2.3