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By using `token_descr`, as is done for many other errors, we can get slightly better descriptions in error messages, e.g. "macro expansion ignores token `let` and any following" becomes "macro expansion ignores keyword `let` and any tokens following". This will be more important once invisible delimiters start being mentioned in error messages -- without this commit, that leads to error messages such as "error at ``" because invisible delimiters are pretty printed as an empty string.
28 lines
856 B
Rust
28 lines
856 B
Rust
//@ run-rustfix
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macro_rules! foo {
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() => {
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assert_eq!("A", "A");
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//~^ WARN trailing semicolon in macro
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//~| WARN this was previously
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//~| NOTE macro invocations at the end of a block
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//~| NOTE to ignore the value produced by the macro
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//~| NOTE for more information
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//~| NOTE `#[warn(semicolon_in_expressions_from_macros)]` on by default
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assert_eq!("B", "B");
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}
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//~^^ ERROR macro expansion ignores `assert_eq` and any tokens following
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//~| NOTE the usage of `foo!` is likely invalid in expression context
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}
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fn main() {
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foo!();
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//~^ NOTE caused by the macro expansion here
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//~| NOTE in this expansion
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//~| NOTE in this expansion
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//~| NOTE in this expansion
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//~| NOTE in this expansion
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//~| NOTE in this expansion
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//~| NOTE in this expansion
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}
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