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rust
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rust-lang
/
rust
/
refs/heads/try-perf
/
.
/
tests
/
codegen-llvm
/
debuginfo-proc-macro
/
auxiliary
/
macro_def.rs
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extern
crate proc_macro
;
use
proc_macro
::*;
#[
proc_macro
]
pub
fn
square_twice
(
_item
:
TokenStream
)
->
TokenStream
{
"(square(env::vars().count() as i32), square(env::vars().count() as i32))"
.
parse
().
unwrap
()
}