mirror of https://github.com/rust-lang/rust
24 lines
679 B
Rust
24 lines
679 B
Rust
// `macro_rules` items produced by transparent macros have correct hygiene in basic cases.
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// Local variables and labels are hygienic, items are not hygienic.
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// `$crate` refers to the crate that defines `macro_rules` and not the outer transparent macro.
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//@ aux-build:gen-macro-rules-hygiene.rs
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#[macro_use]
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extern crate gen_macro_rules_hygiene;
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struct ItemUse;
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gen_macro_rules!();
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//~^ ERROR use of undeclared label `'label_use`
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//~| ERROR cannot find value `local_use` in this scope
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fn main() {
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'label_use: loop {
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let local_use = 1;
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generated!();
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ItemDef; // OK
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local_def; //~ ERROR cannot find value `local_def` in this scope
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}
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}
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