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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.
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
error: macros that expand to items must be delimited with braces or followed by a semicolon
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--> $DIR/issue-118786.rs:16:13
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LL | make_macro!((meow));
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| ^^^^^^
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help: change the delimiters to curly braces
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LL | make_macro!({meow});
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| ~ ~
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help: add a semicolon
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LL | macro_rules! $macro_name; {
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| +
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error: macro expansion ignores `{` and any tokens following
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--> $DIR/issue-118786.rs:7:34
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LL | macro_rules! $macro_name {
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| ^
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...
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LL | make_macro!((meow));
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| ------------------- caused by the macro expansion here
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= note: the usage of `make_macro!` is likely invalid in item context
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error: cannot find macro `macro_rules` in this scope
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--> $DIR/issue-118786.rs:7:9
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LL | macro_rules! $macro_name {
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| ^^^^^^^^^^^
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...
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LL | make_macro!((meow));
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| ------------------- in this macro invocation
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note: maybe you have forgotten to define a name for this `macro_rules!`
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--> $DIR/issue-118786.rs:7:20
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LL | macro_rules! $macro_name {
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| ^ put a macro name here
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...
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LL | make_macro!((meow));
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| ------------------- in this macro invocation
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= note: this error originates in the macro `make_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to 3 previous errors
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