ICE when compiling gl-rs

[dylanmckay]

When I use cargo to compile my project which uses gl-rs, an ICE occurs. When I manually clone gl-rs and attempt to compile, I get the exact same error:

error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: http://doc.rust-lang.org/complement-bugreport.html
note: run with RUST_BACKTRACE=1 for a backtrace
task 'rustc' panicked at 'quote! with interpolated token', >/home/dylan/repos/rust/src/libsyntax/ext/quote.rs:633

Could not compile gl_generator.

Here is the backtrace:

1: 0x7fe9c1361890 - rt::backtrace::imp::write::he67642d3b829f4b6Faq
2: 0x7fe9c1364910 - failure::on_fail::h0f4e0ad35cc550f6gwq
3: 0x7fe9c57235e0 - unwind::begin_unwind_inner::h9e3fbbb255fd1c4b7Rd
4: 0x7fe9c1e11ad0 - unwind::begin_unwind::h5285120681417997190
5: 0x7fe9c20688f0 - ext::quote::mk_token::h9254d3c2dd6ffda8hfh
6: 0x7fe9c206a1e0 - ext::quote::mk_tt::h3cdc34c164244863cqh
7: 0x7fe9c206be00 - ext::quote::mk_tt::closure.56433
8: 0x7fe9c206bb20 - iter::FlatMap<'a, A, T, U>.Iterator::next::h421631495718371731
9: 0x7fe9c206a1e0 - ext::quote::mk_tt::h3cdc34c164244863cqh
10: 0x7fe9c206be00 - ext::quote::mk_tt::closure.56433
11: 0x7fe9c206bb20 - iter::FlatMap<'a, A, T, U>.Iterator::next::h421631495718371731
12: 0x7fe9c206a1e0 - ext::quote::mk_tt::h3cdc34c164244863cqh
13: 0x7fe9c2065cb0 - ext::quote::expand_tts::h6ef186b72b10760dHvh
14: 0x7fe9c2067390 - ext::quote::expand_parse_call::h16b77497ffcd3db4gAh
15: 0x7fe9c1f89790 - ext::quote::expand_quote_item::hedd4505903555a77m4g
16: 0x7fe9c1f80a60 - ext::base::MacroExpanderFn.TTMacroExpander::expand::h1cc1a7937a382587VP6
17: 0x7fe9c1fdc5a0 - ext::expand::expand_mac_invoc::h7488295372212145400
18: 0x7fe9c1fd93d0 - ext::expand::expand_expr::h066b0582934d458apvd
19: 0x7fe9c1fde410 - fold::noop_fold_expr::h6174327986866184002
20: 0x7fe9c1fd93d0 - ext::expand::expand_expr::h066b0582934d458apvd
21: 0x7fe9c1fe2540 - fold::noop_fold_expr::closure.54816
22: 0x7fe9c1eab750 - fold::Vec.MoveMap::move_map::h3743046159375298917
23: 0x7fe9c1fde410 - fold::noop_fold_expr::h6174327986866184002
24: 0x7fe9c1fd93d0 - ext::expand::expand_expr::h066b0582934d458apvd
25: 0x7fe9c1fe2540 - fold::noop_fold_expr::closure.54816
26: 0x7fe9c1eab750 - fold::Vec.MoveMap::move_map::h3743046159375298917
27: 0x7fe9c1fde410 - fold::noop_fold_expr::h6174327986866184002
28: 0x7fe9c1fd93d0 - ext::expand::expand_expr::h066b0582934d458apvd
29: 0x7fe9c1fde410 - fold::noop_fold_expr::h6174327986866184002
30: 0x7fe9c1fd93d0 - ext::expand::expand_expr::h066b0582934d458apvd
31: 0x7fe9c1ff9030 - ext::expand::expand_non_macro_stmt::closure.55042
32: 0x7fe9c1e99a30 - ptr::P::map::h9046795597082364805
33: 0x7fe9c1ff6c40 - ext::expand::expand_stmt::h7cb2f23cc9f85a93K8d
34: 0x7fe9c1ff8ae0 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_stmt::he497865f4d6ef039aBe
35: 0x7fe9c2013410 - ext::expand::expand_block_elts::closure.55281
36: 0x7fe9c1ea56a0 - iter::Iterator::collect::h7156353767204049429
37: 0x7fe9c2012600 - ext::expand::expand_block_elts::closure.55274
38: 0x7fe9c1ea4940 - ptr::P::map::h2015443453350656769
39: 0x7fe9c20124c0 - ext::expand::expand_block::h492f4ffb1ef0b079Eie
40: 0x7fe9c1fde410 - fold::noop_fold_expr::h6174327986866184002
41: 0x7fe9c1fd93d0 - ext::expand::expand_expr::h066b0582934d458apvd
42: 0x7fe9c1fd93d0 - ext::expand::expand_expr::h066b0582934d458apvd
43: 0x7fe9c2012600 - ext::expand::expand_block_elts::closure.55274
44: 0x7fe9c1ea4940 - ptr::P::map::h2015443453350656769
45: 0x7fe9c20124c0 - ext::expand::expand_block::h492f4ffb1ef0b079Eie
46: 0x7fe9c1fe6840 - ext::expand::expand_and_rename_fn_decl_and_block::ha31f1cddff26b6d26xe
47: 0x7fe9c1fec110 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_item_underscore::hc89308dcb23bbc06UAe
48: 0x7fe9c1febc30 - fold::noop_fold_item::closure.54914
49: 0x7fe9c1e966f0 - ptr::P::map::h15211523799483024044
50: 0x7fe9c1fe6e00 - ext::expand::expand_item::hecdff326349e32303Pd
51: 0x7fe9c1ff2310 - fold::noop_fold_mod::closure.54943
52: 0x7fe9c1f32770 - iter::Iterator::collect::h3135972329917258468
53: 0x7fe9c1ff1160 - fold::Folder::fold_mod::h11237967112024482480
54: 0x7fe9c1fec110 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_item_underscore::hc89308dcb23bbc06UAe
55: 0x7fe9c1febc30 - fold::noop_fold_item::closure.54914
56: 0x7fe9c1e966f0 - ptr::P::map::h15211523799483024044
57: 0x7fe9c1fe6e00 - ext::expand::expand_item::hecdff326349e32303Pd
58: 0x7fe9c1ff2310 - fold::noop_fold_mod::closure.54943
59: 0x7fe9c1f32770 - iter::Iterator::collect::h3135972329917258468
60: 0x7fe9c1ff1160 - fold::Folder::fold_mod::h11237967112024482480
61: 0x7fe9c1fec110 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_item_underscore::hc89308dcb23bbc06UAe
62: 0x7fe9c1febc30 - fold::noop_fold_item::closure.54914
63: 0x7fe9c1e966f0 - ptr::P::map::h15211523799483024044
64: 0x7fe9c1fe6e00 - ext::expand::expand_item::hecdff326349e32303Pd
65: 0x7fe9c1ff2310 - fold::noop_fold_mod::closure.54943
66: 0x7fe9c1f32770 - iter::Iterator::collect::h3135972329917258468
67: 0x7fe9c1ff1160 - fold::Folder::fold_mod::h11237967112024482480
68: 0x7fe9c202fa50 - ext::expand::expand_crate::h5575a23411e1f5980De
69: 0x7fe9c6628b10 - driver::driver::phase_2_configure_and_expand::closure.145021
70: 0x7fe9c6394640 - driver::driver::phase_2_configure_and_expand::hb48b0f850eae919bJcC
71: 0x7fe9c65e72d0 - driver::driver::compile_input::ha8de362fab86449aP5B
72: 0x7fe9c6669a00 - driver::run_compiler::he3d0031d2d402bb56VF
73: 0x7fe9c66698f0 - driver::run::closure.146431
74: 0x7fe9c5da6b10 - task::TaskBuilder::try_future::closure.104846
75: 0x7fe9c5da6900 - task::TaskBuilder::spawn_internal::closure.104817
76: 0x7fe9c5a73c60 - task::NativeSpawner.Spawner::spawn::closure.8448
77: 0x7fe9c5782350 - rust_try_inner
78: 0x7fe9c5782340 - rust_try
79: 0x7fe9c5720f60 - unwind::try::he8efb306d3daa9c5PGd
80: 0x7fe9c5720df0 - task::Task::run::hb4a5d93e5e6bd5a4FMc
81: 0x7fe9c5a739a0 - task::NativeSpawner.Spawner::spawn::closure.8386
82: 0x7fe9c5722600 - thread::thread_start::h3217220e86a70fb2U7c
83: 0x7fe9c0713250 - start_thread
84: 0x7fe9c53fd3b9 - clone
85: 0x0 -

Note that this is using the newly updated master branches of both Rust and Cargo.

[pozar87]

Same issue.
Rust: rustc 0.13.0-nightly (08.11.2014)
Cargo: cargo 0.0.1-pre-nightly (8cc600a 2014-11-07 21:15:52 +0000

    Compiling gl_generator v0.0.1 (https://github.com/bjz/gl-rs#678346eb)
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: http://doc.rust-lang.org/complement-bugreport.html
note: run with `RUST_BACKTRACE=1` for a backtrace
task 'rustc' panicked at 'quote! with interpolated token', /home/rustbuild/src/rust-buildbot/slave/nightly-linux/build/src/libsyntax/ext/quote.rs:633

stack backtrace:
   1:     0x7f47ba80c860 - rt::backtrace::imp::write::h6962a9f035a3164aFaq
   2:     0x7f47ba80f8e0 - failure::on_fail::h88b5054949466854gwq
   3:     0x7f47bed55c70 - unwind::begin_unwind_inner::h956a67c80425b5677Rd
   4:     0x7f47bded1480 - unwind::begin_unwind::h9893951301925131742
   5:     0x7f47be128080 - ext::quote::mk_token::hc6ac50e71cba3aa4hfh
   6:     0x7f47be129970 - ext::quote::mk_tt::hb0bd798dda9f1f7ccqh
   7:     0x7f47be12b590 - ext::quote::mk_tt::closure.56433
   8:     0x7f47be12b2b0 - iter::FlatMap<'a, A, T, U>.Iterator<B>::next::h9285657917981752866
   9:     0x7f47be129970 - ext::quote::mk_tt::hb0bd798dda9f1f7ccqh
  10:     0x7f47be12b590 - ext::quote::mk_tt::closure.56433
  11:     0x7f47be12b2b0 - iter::FlatMap<'a, A, T, U>.Iterator<B>::next::h9285657917981752866
  12:     0x7f47be129970 - ext::quote::mk_tt::hb0bd798dda9f1f7ccqh
  13:     0x7f47be125440 - ext::quote::expand_tts::h26b9fb72d181c7a5Hvh
  14:     0x7f47be126b20 - ext::quote::expand_parse_call::hf87863a12802998agAh
  15:     0x7f47be0490e0 - ext::quote::expand_quote_item::h913b58f924867343m4g
  16:     0x7f47be0403c0 - ext::base::MacroExpanderFn.TTMacroExpander::expand::h2531c9a5a5c4a146VP6
  17:     0x7f47be09bf00 - ext::expand::expand_mac_invoc::h5070259855386140
  18:     0x7f47be098d20 - ext::expand::expand_expr::hd06339d50d4e3518pvd
  19:     0x7f47be09dd40 - fold::noop_fold_expr::h17508862488002781673
  20:     0x7f47be098d20 - ext::expand::expand_expr::hd06339d50d4e3518pvd
  21:     0x7f47be0a1cb0 - fold::noop_fold_expr::closure.54816
  22:     0x7f47bdf6ac80 - fold::Vec<T>.MoveMap<T>::move_map::h2103895945899500191
  23:     0x7f47be09dd40 - fold::noop_fold_expr::h17508862488002781673
  24:     0x7f47be098d20 - ext::expand::expand_expr::hd06339d50d4e3518pvd
  25:     0x7f47be0a1cb0 - fold::noop_fold_expr::closure.54816
  26:     0x7f47bdf6ac80 - fold::Vec<T>.MoveMap<T>::move_map::h2103895945899500191
  27:     0x7f47be09dd40 - fold::noop_fold_expr::h17508862488002781673
  28:     0x7f47be098d20 - ext::expand::expand_expr::hd06339d50d4e3518pvd
  29:     0x7f47be09dd40 - fold::noop_fold_expr::h17508862488002781673
  30:     0x7f47be098d20 - ext::expand::expand_expr::hd06339d50d4e3518pvd
  31:     0x7f47be0b8700 - ext::expand::expand_non_macro_stmt::closure.55042
  32:     0x7f47bdf592d0 - ptr::P<T>::map::h17045300039264601048
  33:     0x7f47be0b6310 - ext::expand::expand_stmt::h415289a49dd1653cK8d
  34:     0x7f47be0b81b0 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_stmt::h5a37c5b35924fca9aBe
  35:     0x7f47be0d2c20 - ext::expand::expand_block_elts::closure.55281
  36:     0x7f47bdf64f50 - iter::Iterator::collect::h7500869249246266630
  37:     0x7f47be0d1e10 - ext::expand::expand_block_elts::closure.55274
  38:     0x7f47bdf641f0 - ptr::P<T>::map::h9226135620174701605
  39:     0x7f47be0d1cd0 - ext::expand::expand_block::hd4fa4bc2262a7bf2Eie
  40:     0x7f47be09dd40 - fold::noop_fold_expr::h17508862488002781673
  41:     0x7f47be098d20 - ext::expand::expand_expr::hd06339d50d4e3518pvd
  42:     0x7f47be098d20 - ext::expand::expand_expr::hd06339d50d4e3518pvd
  43:     0x7f47be0d1e10 - ext::expand::expand_block_elts::closure.55274
  44:     0x7f47bdf641f0 - ptr::P<T>::map::h9226135620174701605
  45:     0x7f47be0d1cd0 - ext::expand::expand_block::hd4fa4bc2262a7bf2Eie
  46:     0x7f47be0a5fb0 - ext::expand::expand_and_rename_fn_decl_and_block::h765a4b29f62668726xe
  47:     0x7f47be0ab8a0 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_item_underscore::had677d0d3e6000edUAe
  48:     0x7f47be0ab3c0 - fold::noop_fold_item::closure.54914
  49:     0x7f47bdf55fa0 - ptr::P<T>::map::h379406011177471474
  50:     0x7f47be0a6570 - ext::expand::expand_item::hba76819e858c6d563Pd
  51:     0x7f47be0b19d0 - fold::noop_fold_mod::closure.54943
  52:     0x7f47bdff1ea0 - iter::Iterator::collect::h1493905177343541632
  53:     0x7f47be0b0850 - fold::Folder::fold_mod::h13213550518250326075
  54:     0x7f47be0ab8a0 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_item_underscore::had677d0d3e6000edUAe
  55:     0x7f47be0ab3c0 - fold::noop_fold_item::closure.54914
  56:     0x7f47bdf55fa0 - ptr::P<T>::map::h379406011177471474
  57:     0x7f47be0a6570 - ext::expand::expand_item::hba76819e858c6d563Pd
  58:     0x7f47be0b19d0 - fold::noop_fold_mod::closure.54943
  59:     0x7f47bdff1ea0 - iter::Iterator::collect::h1493905177343541632
  60:     0x7f47be0b0850 - fold::Folder::fold_mod::h13213550518250326075
  61:     0x7f47be0ab8a0 - ext::expand::MacroExpander<'a, 'b>.Folder::fold_item_underscore::had677d0d3e6000edUAe
  62:     0x7f47be0ab3c0 - fold::noop_fold_item::closure.54914
  63:     0x7f47bdf55fa0 - ptr::P<T>::map::h379406011177471474
  64:     0x7f47be0a6570 - ext::expand::expand_item::hba76819e858c6d563Pd
  65:     0x7f47be0b19d0 - fold::noop_fold_mod::closure.54943
  66:     0x7f47bdff1ea0 - iter::Iterator::collect::h1493905177343541632
  67:     0x7f47be0b0850 - fold::Folder::fold_mod::h13213550518250326075
  68:     0x7f47be0ef220 - ext::expand::expand_crate::h848537a1a598e0e20De
  69:     0x7f47bfc527a0 - driver::driver::phase_2_configure_and_expand::closure.145021
  70:     0x7f47bf9be260 - driver::driver::phase_2_configure_and_expand::h022162699ec14c3aJcC
  71:     0x7f47bfc10f60 - driver::driver::compile_input::h9c830efbfaf34c7aP5B
  72:     0x7f47bfc93700 - driver::run_compiler::h4d729096c46ed8f76VF
  73:     0x7f47bfc935f0 - driver::run::closure.146431
  74:     0x7f47bf3cfb60 - task::TaskBuilder<S>::try_future::closure.104846
  75:     0x7f47bf3cf950 - task::TaskBuilder<S>::spawn_internal::closure.104817
  76:     0x7f47bf09c530 - task::NativeSpawner.Spawner::spawn::closure.8448
  77:     0x7f47bedaab70 - rust_try_inner
  78:     0x7f47bedaab60 - rust_try
  79:     0x7f47bed535f0 - unwind::try::h51d29a2dceb13095PGd
  80:     0x7f47bed53480 - task::Task::run::h8c90cb04437a131dFMc
  81:     0x7f47bf09c270 - task::NativeSpawner.Spawner::spawn::closure.8386
  82:     0x7f47bed54c90 - thread::thread_start::h7bbfc46247c32113U7c
  83:     0x7f47b9bbe250 - start_thread
  84:     0x7f47bea2f3b9 - clone
  85:                0x0 - <unknown>

[tomaka]

It's probably broken due to #17830

gl_generator doesn't use or define any macro, all it does is call quote!.

cc @pczarn

[tomaka]

After some investigations, it comes from these two functions:

• https://github.com/bjz/gl-rs/blob/master/src/gl_generator/generators/struct_gen.rs#L78
• https://github.com/bjz/gl-rs/blob/master/src/gl_generator/generators/global_gen.rs#L129

If I remove the doccomments from the inside of quote_item!, there's no ICE anymore.

EDIT: This commit removes the ICE: rust-windowing/gl-rs@f14da1e

EDIT2: It's because of the vec![] macro.

[tomaka]

Minimal test case:

vec![quote_item!(ecx, /** test */ fn hello() {})]]

[pczarn]

This error originates in TokenTree's fn get_tt

Thanks!

[dylanmckay]

@pczarn is this now resolved?

EDIT: I realised that you fix hasn't been merged yet.

[pczarn]

@dylanmckay Not yet, until the PR gets merged

[tomaka]

@dylanmckay Note that gl-rs has been updated to bypass these issues