Closed
Description
Using a macro argument (e.g. $x) inside of quote_expr! causes an internal compiler error.
Testcase
#![feature(quote)]
fn main() {
macro_rules! foo {
($bar:expr) => {{
quote_expr!(cx, {
$bar
})
}}
}
foo!(0);
}
Meta
rustc --version --verbose:
rustc 1.10.0-nightly (8da2bcac5 2016-04-28)
binary: rustc
commit-hash: 8da2bcac5db1e091b90cceb19d0496f0f7501c88
commit-date: 2016-04-28
host: x86_64-unknown-linux-gnu
release: 1.10.0-nightly
Backtrace:
thread 'rustc' panicked at 'quote! with interpolated token', ../src/libsyntax/ext/quote.rs:674
stack backtrace:
1: 0x7f64bcbe8610 - std::sys::backtrace::tracing::imp::write::h9fb600083204ae7f
2: 0x7f64bcbf5d5b - std::panicking::default_hook::_$u7b$$u7b$closure$u7d$$u7d$::hca543c34f11229ac
3: 0x7f64bcbf58fc - std::panicking::default_hook::hc2c969e7453d080c
4: 0x7f64bcbbb28f - std::sys_common::unwind::begin_unwind_inner::h30e12d15ce2b2e25
5: 0x7f64b81b307f - std::sys_common::unwind::begin_unwind::h65390c63b501d6ed
6: 0x7f64b84f44e8 - syntax::ext::quote::expr_mk_token::hf3616fdc8a730f98
7: 0x7f64b84f73ed - syntax::ext::quote::statements_mk_tt::hf137173b7aaf0343
8: 0x7f64b84f9899 - _<std..iter..FlatMap<I, U, F> as std..iter..Iterator>::next::h342f312ca16f3456
9: 0x7f64b84f97d6 - _<std..iter..Chain<A, B> as std..iter..Iterator>::next::hcca5675060ff1468
10: 0x7f64b84f950a - _<std..iter..Chain<A, B> as std..iter..Iterator>::next::h3b59c19743381054
11: 0x7f64b84f8f25 - _<std..vec..Vec<T> as std..iter..FromIterator<T>>::from_iter::h6bc6a155bb0e0657
12: 0x7f64b84f6007 - syntax::ext::quote::statements_mk_tt::hf137173b7aaf0343
13: 0x7f64b84ef895 - syntax::ext::quote::statements_mk_tts::h8bb66553ad6f815a
14: 0x7f64b84ecd7c - syntax::ext::quote::expand_tts::h82c25750c4b3f43c
15: 0x7f64b84ee19e - syntax::ext::quote::expand_parse_call::hd566ae918a5cd00e
16: 0x7f64b8426c01 - syntax::ext::quote::expand_quote_expr::h22071cf817642021
17: 0x7f64b842a4f8 - _<F as ext..base..TTMacroExpander>::expand::hea8797243c44e76d
18: 0x7f64b843dde1 - syntax::ext::expand::expand_expr::_$u7b$$u7b$closure$u7d$$u7d$::h786e3626c423f985
19: 0x7f64b843c551 - syntax::ext::expand::expand_expr::h4ef21198bf93998f
20: 0x7f64b8491314 - _<std..option..Option<T>>::map::h06292a7609d09781
21: 0x7f64b849009f - _<ptr..P<T>>::map::hea6557fd13e26b82
22: 0x7f64b848feba - syntax::ext::expand::expand_block::h29e53ffe4e9d138a
23: 0x7f64b8467803 - syntax::fold::noop_fold_expr::h8a99af1f29ab77eb
24: 0x7f64b843cbec - syntax::ext::expand::expand_expr::_$u7b$$u7b$closure$u7d$$u7d$::h786e3626c423f985
25: 0x7f64b843c551 - syntax::ext::expand::expand_expr::h4ef21198bf93998f
26: 0x7f64b848b6be - syntax::fold::noop_fold_stmt::h0a3b2d3a3b789e9d
27: 0x7f64b84867ea - syntax::ext::expand::expand_stmt::hc327948644bd9e60
28: 0x7f64b848a06f - _<std..iter..FlatMap<I, U, F> as std..iter..Iterator>::next::ha08776cbda0f1375
29: 0x7f64b84897fa - _<util..small_vector..SmallVector<T> as std..iter..FromIterator<T>>::from_iter::hc57b9728eb5e9511
30: 0x7f64b8488244 - syntax::ext::expand::expand_stmt::hc327948644bd9e60
31: 0x7f64b8490c63 - _<std..iter..FlatMap<I, U, F> as std..iter..Iterator>::next::hc119c9df0b90bc98
32: 0x7f64b849034e - core::iter::iterator::Iterator::collect::hd0685fa2c544c4d2
33: 0x7f64b8490094 - _<ptr..P<T>>::map::hea6557fd13e26b82
34: 0x7f64b848feba - syntax::ext::expand::expand_block::h29e53ffe4e9d138a
35: 0x7f64b8465d9b - syntax::ext::expand::expand_and_rename_fn_decl_and_block::h1c62ef1401adb7ae
36: 0x7f64b84758e3 - syntax::ext::expand::expand_item_kind::h0b21c6d930b6a1e4
37: 0x7f64b84b5623 - syntax::fold::Folder::fold_item_simple::ha749d2ae63b235ad
38: 0x7f64b84b524a - _<ptr..P<T>>::map::he640c72a9f20f0a4
39: 0x7f64b8471e27 - syntax::ext::expand::expand_annotatable::hc0f78f406615b5e1
40: 0x7f64b846eb60 - syntax::ext::expand::expand_item::hb99af7e0c910686e
41: 0x7f64b847ce11 - _<ext..expand..MacroExpander<'a, 'b> as fold..Folder>::fold_item::h8c27a95378ad2c28
42: 0x7f64b847cacf - syntax::fold::noop_fold_mod::hc2718611fc479597
43: 0x7f64b8475eae - syntax::ext::expand::expand_item_kind::h0b21c6d930b6a1e4
44: 0x7f64b84b5623 - syntax::fold::Folder::fold_item_simple::ha749d2ae63b235ad
45: 0x7f64b84b524a - _<ptr..P<T>>::map::he640c72a9f20f0a4
46: 0x7f64b8472f38 - syntax::ext::expand::expand_annotatable::hc0f78f406615b5e1
47: 0x7f64b846eb60 - syntax::ext::expand::expand_item::hb99af7e0c910686e
48: 0x7f64b847cff4 - _<ext..expand..MacroExpander<'a, 'b> as fold..Folder>::fold_item::h8c27a95378ad2c28
49: 0x7f64b84c30b2 - _<ext..expand..MacroExpander<'a, 'b> as fold..Folder>::fold_crate::h072fa0f078d6fae0
50: 0x7f64b84c444a - syntax::ext::expand::expand_crate::h7e9f12d49472476d
51: 0x7f64bd18083b - rustc_driver::driver::phase_2_configure_and_expand::_$u7b$$u7b$closure$u7d$$u7d$::hcc02923f666dd3df
52: 0x7f64bd12f14f - rustc_driver::driver::phase_2_configure_and_expand::h70a47be7bf475f39
53: 0x7f64bd10eba0 - rustc_driver::driver::compile_input::h0629572e6f316b31
54: 0x7f64bd0f553c - rustc_driver::run_compiler::h8902aebf8b1849a8
55: 0x7f64bd0f2c41 - std::sys_common::unwind::try::try_fn::h4c74456035d0fcc7
56: 0x7f64bcbe5deb - __rust_try
57: 0x7f64bcbe5d7d - std::sys_common::unwind::inner_try::h47a4d9cd4a369dcd
58: 0x7f64bd0f348a - _<F as std..boxed..FnBox<A>>::call_box::h27f542a39f1d61ef
59: 0x7f64bcbf3ef4 - std::sys::thread::Thread::new::thread_start::h6f266e069bf4ec2b
60: 0x7f64b49536f9 - start_thread
61: 0x7f64bc849b5c - clone
62: 0x0 - <unknown>