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//@ run-pass
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extern crate proc_macro;
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//@ aux-build:is-available.rs
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extern crate is_available;
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fn main() {
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let a = proc_macro::is_available();
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let b = is_available::from_inside_proc_macro!();
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let c = proc_macro::is_available();
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assert!(!a);
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assert!(b);
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assert!(!c);
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}
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