82 lines
2.0 KiB
Rust
82 lines
2.0 KiB
Rust
#![feature(macro_metavar_expr_concat)]
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macro_rules! idents_01 {
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($rhs:ident) => {
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let ${concat(abc, $rhs)}: () = ();
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//~^ ERROR `${concat(..)}` currently does not support raw identifiers
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};
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}
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macro_rules! idents_10 {
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($lhs:ident) => {
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let ${concat($lhs, abc)}: () = ();
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//~^ ERROR `${concat(..)}` currently does not support raw identifiers
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};
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}
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macro_rules! idents_11 {
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($lhs:ident, $rhs:ident) => {
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let ${concat($lhs, $rhs)}: () = ();
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//~^ ERROR `${concat(..)}` currently does not support raw identifiers
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//~| ERROR `${concat(..)}` currently does not support raw identifiers
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//~| ERROR `${concat(..)}` currently does not support raw identifiers
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};
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}
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macro_rules! no_params {
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() => {
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let ${concat(r#abc, abc)}: () = ();
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//~^ ERROR expected identifier or string literal
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//~| ERROR expected pattern, found `$`
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let ${concat(abc, r#abc)}: () = ();
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//~^ ERROR expected identifier or string literal
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let ${concat(r#abc, r#abc)}: () = ();
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//~^ ERROR expected identifier or string literal
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};
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}
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macro_rules! tts_01 {
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($rhs:tt) => {
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let ${concat(abc, $rhs)}: () = ();
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//~^ ERROR `${concat(..)}` currently does not support raw identifiers
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};
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}
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macro_rules! tts_10 {
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($lhs:tt) => {
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let ${concat($lhs, abc)}: () = ();
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//~^ ERROR `${concat(..)}` currently does not support raw identifiers
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};
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}
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macro_rules! tts_11 {
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($lhs:tt, $rhs:tt) => {
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let ${concat($lhs, $rhs)}: () = ();
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//~^ ERROR `${concat(..)}` currently does not support raw identifiers
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//~| ERROR `${concat(..)}` currently does not support raw identifiers
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//~| ERROR `${concat(..)}` currently does not support raw identifiers
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};
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}
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fn main() {
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idents_01!(r#_c);
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idents_10!(r#_c);
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idents_11!(r#_c, d);
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idents_11!(_e, r#f);
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idents_11!(r#_g, r#h);
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tts_01!(r#_c);
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tts_10!(r#_c);
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tts_11!(r#_c, d);
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tts_11!(_e, r#f);
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tts_11!(r#_g, r#h);
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no_params!();
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}
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