Cube wasm example throws error in browser.

[danec020]

When building for wasm, the browser throws an unwrap error for the cube example. I haven't tested the others but may be the same with them as well. Note: This is for WebGPU as WebGL works fine.

Repro Steps:

• Download Repository
• Cargo build --example cube
• Cargo run-wasm --example cube
• Open browser to local host and check the console.

Error when using non WebGPU supported Chrome.

panicked at 'called `Result::unwrap()` on an `Err` value: CreateSurfaceError', wgpu\examples\cube\..\framework.rs:182:10

Stack:

Error
    at imports.wbg.__wbg_new_abda76e883ba8a5f (http://localhost:8000/cube.js:561:21)
    at console_error_panic_hook::Error::new::hf3e514ed9e575257 (http://localhost:8000/cube_bg.wasm:wasm-function[5123]:0x13211c)
    at console_error_panic_hook::hook_impl::h1297dd701c817dab (http://localhost:8000/cube_bg.wasm:wasm-function[876]:0x8c79f)
    at console_error_panic_hook::hook::h04af7c2d5894232a (http://localhost:8000/cube_bg.wasm:wasm-function[5751]:0x13a9fe)
    at core::ops::function::Fn::call::h25e0e9d5e3ca4b78 (http://localhost:8000/cube_bg.wasm:wasm-function[4752]:0x12c4e8)
    at std::panicking::rust_panic_with_hook::hbafe3e603d331223 (http://localhost:8000/cube_bg.wasm:wasm-function[2046]:0xde776)
    at std::panicking::begin_panic_handler::{{closure}}::h8ab6ee68d5b4c391 (http://localhost:8000/cube_bg.wasm:wasm-function[2542]:0xf54b7)
    at std::sys_common::backtrace::__rust_end_short_backtrace::h008f69666d134159 (http://localhost:8000/cube_bg.wasm:wasm-function[6136]:0x13f80b)
    at rust_begin_unwind (http://localhost:8000/cube_bg.wasm:wasm-function[4003]:0x11e82c)
    at core::panicking::panic_fmt::h1d17fc068f528130 (http://localhost:8000/cube_bg.wasm:wasm-function[5582]:0x138797)


imports.wbg.__wbg_error_f851667af71bcfc6 @ cube.js:555
cube_bg.wasm:0x143762 Uncaught (in promise) RuntimeError: unreachable
    at __rust_start_panic (cube_bg.wasm:0x143762)
    at rust_panic (cube_bg.wasm:0x141370)
    at std::panicking::rust_panic_with_hook::hbafe3e603d331223 (cube_bg.wasm:0xde7a1)
    at std::panicking::begin_panic_handler::{{closure}}::h8ab6ee68d5b4c391 (cube_bg.wasm:0xf54b7)
    at std::sys_common::backtrace::__rust_end_short_backtrace::h008f69666d134159 (cube_bg.wasm:0x13f80b)
    at rust_begin_unwind (cube_bg.wasm:0x11e82c)
    at core::panicking::panic_fmt::h1d17fc068f528130 (cube_bg.wasm:0x138797)
    at core::result::unwrap_failed::ha2d692f1494e5dde (cube_bg.wasm:0xfef7e)
    at core::result::Result<T,E>::unwrap::h266b8eab0d7d0dcf (cube_bg.wasm:0x1011a3)
    at cube::framework::setup::{{closure}}::h2c8d338493feb534 (cube_bg.wasm:0xd32d)
`

Error on Canary with WebGPU support

Panicked at 'assertion failed: wasm.is_instance_of::<T>()', wgpu\src\backend\web.rs:53:9

Stack:

Error
    at imports.wbg.__wbg_new_abda76e883ba8a5f (http://localhost:8000/cube.js:561:21)
    at console_error_panic_hook::Error::new::hf3e514ed9e575257 (http://localhost:8000/cube_bg.wasm:wasm-function[5123]:0x13211c)
    at console_error_panic_hook::hook_impl::h1297dd701c817dab (http://localhost:8000/cube_bg.wasm:wasm-function[876]:0x8c79f)
    at console_error_panic_hook::hook::h04af7c2d5894232a (http://localhost:8000/cube_bg.wasm:wasm-function[5751]:0x13a9fe)
    at core::ops::function::Fn::call::h25e0e9d5e3ca4b78 (http://localhost:8000/cube_bg.wasm:wasm-function[4752]:0x12c4e8)
    at std::panicking::rust_panic_with_hook::hbafe3e603d331223 (http://localhost:8000/cube_bg.wasm:wasm-function[2046]:0xde776)
    at std::panicking::begin_panic_handler::{{closure}}::h8ab6ee68d5b4c391 (http://localhost:8000/cube_bg.wasm:wasm-function[2542]:0xf5489)
    at std::sys_common::backtrace::__rust_end_short_backtrace::h008f69666d134159 (http://localhost:8000/cube_bg.wasm:wasm-function[6136]:0x13f80b)
    at rust_begin_unwind (http://localhost:8000/cube_bg.wasm:wasm-function[4003]:0x11e82c)
    at core::panicking::panic_fmt::h1d17fc068f528130 (http://localhost:8000/cube_bg.wasm:wasm-function[5582]:0x138797)


imports.wbg.__wbg_error_f851667af71bcfc6 @ cube.js:555
$console_error_panic_hook::error::h93d9fdb52440fd98 @ cube_bg.wasm:0xf100e
$console_error_panic_hook::hook_impl::h1297dd701c817dab @ cube_bg.wasm:0x8c88b
$console_error_panic_hook::hook::h04af7c2d5894232a @ cube_bg.wasm:0x13a9fe
$core::ops::function::Fn::call::h25e0e9d5e3ca4b78 @ cube_bg.wasm:0x12c4e8
$std::panicking::rust_panic_with_hook::hbafe3e603d331223 @ cube_bg.wasm:0xde776
$std::panicking::begin_panic_handler::{{closure}}::h8ab6ee68d5b4c391 @ cube_bg.wasm:0xf5489
$std::sys_common::backtrace::__rust_end_short_backtrace::h008f69666d134159 @ cube_bg.wasm:0x13f80b
$rust_begin_unwind @ cube_bg.wasm:0x11e82c
$core::panicking::panic_fmt::h1d17fc068f528130 @ cube_bg.wasm:0x138797
$core::panicking::panic::h27b5eefa3e4ff738 @ cube_bg.wasm:0x122d27
$<wgpu::backend::web::Identified<T> as core::convert::From<wgpu::context::ObjectId>>::from::h9886815542be7c36 @ cube_bg.wasm:0xddc8c
$<T as wgpu::context::DynContext>::adapter_downlevel_capabilities::hfe1ae8c292f8a1bd @ cube_bg.wasm:0xeb1d7
$wgpu::Adapter::get_downlevel_capabilities::he50505c609c4bf18 @ cube_bg.wasm:0xe87e6
$cube::framework::setup::{{closure}}::h2c8d338493feb534 @ cube_bg.wasm:0xd89e
$cube::framework::run::{{closure}}::ha02852b6b04d1aa1 @ cube_bg.wasm:0x40415
$wasm_bindgen_futures::task::singlethread::Task::run::h85fa19fdb5864191 @ cube_bg.wasm:0x708fd
$wasm_bindgen_futures::queue::QueueState::run_all::h7eba45539b26bd3b @ cube_bg.wasm:0x61fed
$wasm_bindgen_futures::queue::Queue::new::{{closure}}::hecad0300d40bcbd3 @ cube_bg.wasm:0x104e2a
$<dyn core::ops::function::FnMut<(A,)>+Output = R as wasm_bindgen::closure::WasmClosure>::describe::invoke::h9eb70fd6bf08dbbb @ cube_bg.wasm:0xe24af
__wbg_adapter_58 @ cube.js:256
real @ cube.js:201
Promise.then (async)
imports.wbg.__wbg_then_ec5db6d509eb475f @ cube.js:1639
$js_sys::Promise::then::hc765b1e18f26a8fb @ cube_bg.wasm:0x111089
$wasm_bindgen_futures::queue::Queue::schedule_task::h5fb77c97155bc08a @ cube_bg.wasm:0x9194e
$wasm_bindgen_futures::queue::Queue::push_task::h38d3e586f79fd17d @ cube_bg.wasm:0x13225f
$wasm_bindgen_futures::task::singlethread::Task::wake_by_ref::{{closure}}::hb723899528afaf55 @ cube_bg.wasm:0x121b9c
$std::thread::local::LocalKey<T>::try_with::h5fd4860c396ab55b @ cube_bg.wasm:0x98f2e
$std::thread::local::LocalKey<T>::with::h7cf910003e81a027 @ cube_bg.wasm:0xebca8
$wasm_bindgen_futures::task::singlethread::Task::wake_by_ref::h93bbf92b80a55361 @ cube_bg.wasm:0xe3e00
$wasm_bindgen_futures::task::singlethread::Task::into_raw_waker::raw_wake::hd420b493ef715b60 @ cube_bg.wasm:0x10f997
$core::task::wake::Waker::wake::h700a0c5221fb522b @ cube_bg.wasm:0x11746f
$<wasm_bindgen_futures::JsFuture as core::convert::From<js_sys::Promise>>::from::finish::h2aa3017b3a440aff @ cube_bg.wasm:0x5ac57
$<wasm_bindgen_futures::JsFuture as core::convert::From<js_sys::Promise>>::from::{{closure}}::h2b27b764db4661a8 @ cube_bg.wasm:0xfff91
$core::ops::function::FnOnce::call_once::h4736c9b165ae53b3 @ cube_bg.wasm:0x10e8a7
$<T as wasm_bindgen::closure::WasmClosureFnOnce<A,R>>::into_fn_mut::{{closure}}::h028dae16e38ca713 @ cube_bg.wasm:0x10e991
$<dyn core::ops::function::FnMut<(A,)>+Output = R as wasm_bindgen::closure::WasmClosure>::describe::invoke::h9eb70fd6bf08dbbb @ cube_bg.wasm:0xe24af
__wbg_adapter_58 @ cube.js:256
real @ cube.js:201
Promise.then (async)
imports.wbg.__wbg_then_f753623316e2873a @ cube.js:1643
$js_sys::Promise::then2::h4f6c1b952d5425e0 @ cube_bg.wasm:0x10524c
$<wasm_bindgen_futures::JsFuture as core::convert::From<js_sys::Promise>>::from::h5b68f645d911a127 @ cube_bg.wasm:0x4093f
$<wgpu::backend::web::Context as wgpu::context::Context>::instance_request_adapter::h63a58c2321646861 @ cube_bg.wasm:0xd7450
$<T as wgpu::context::DynContext>::instance_request_adapter::hadc745bf1281ed2b @ cube_bg.wasm:0xacea1
$wgpu::Instance::request_adapter::hababbf79a33ce6c1 @ cube_bg.wasm:0xceeb5
$wgpu::util::init::initialize_adapter_from_env_or_default::{{closure}}::h544d110ed5c3e9b0 @ cube_bg.wasm:0x30420
$cube::framework::setup::{{closure}}::h2c8d338493feb534 @ cube_bg.wasm:0xd55f
$cube::framework::run::{{closure}}::ha02852b6b04d1aa1 @ cube_bg.wasm:0x40415
$wasm_bindgen_futures::task::singlethread::Task::run::h85fa19fdb5864191 @ cube_bg.wasm:0x708fd
$wasm_bindgen_futures::queue::QueueState::run_all::h7eba45539b26bd3b @ cube_bg.wasm:0x61fed
$wasm_bindgen_futures::queue::Queue::new::{{closure}}::hecad0300d40bcbd3 @ cube_bg.wasm:0x104e2a
$<dyn core::ops::function::FnMut<(A,)>+Output = R as wasm_bindgen::closure::WasmClosure>::describe::invoke::h9eb70fd6bf08dbbb @ cube_bg.wasm:0xe24af
__wbg_adapter_58 @ cube.js:256
real @ cube.js:201
Promise.then (async)
imports.wbg.__wbg_then_ec5db6d509eb475f @ cube.js:1639
$js_sys::Promise::then::hc765b1e18f26a8fb @ cube_bg.wasm:0x111089
$wasm_bindgen_futures::queue::Queue::schedule_task::h5fb77c97155bc08a @ cube_bg.wasm:0x9194e
$wasm_bindgen_futures::task::singlethread::Task::spawn::{{closure}}::h152cf58ad470712c @ cube_bg.wasm:0x13229c
$std::thread::local::LocalKey<T>::try_with::h2c5fd51cc9f4da22 @ cube_bg.wasm:0x92cf2
$std::thread::local::LocalKey<T>::with::hbfbf7e0319809d8b @ cube_bg.wasm:0xebd64
$wasm_bindgen_futures::task::singlethread::Task::spawn::h1f716c6645735579 @ cube_bg.wasm:0x60609
$wasm_bindgen_futures::spawn_local::hd9f44bfd728a63ba @ cube_bg.wasm:0x10e21d
$cube::framework::run::he304396696feb99d @ cube_bg.wasm:0xc986a
$cube::main::h01de5355b1d29cbd @ cube_bg.wasm:0x143026
$core::ops::function::FnOnce::call_once::h6d81ba0c73bc1595 @ cube_bg.wasm:0x138c0c
$std::sys_common::backtrace::__rust_begin_short_backtrace::h7f8ed9268b3bb469 @ cube_bg.wasm:0x13a1fc
$std::rt::lang_start::{{closure}}::haeef17a22ccb51f7 @ cube_bg.wasm:0x10cd9c
$std::rt::lang_start_internal::h14d415b51601c1a5 @ cube_bg.wasm:0x93022
$std::rt::lang_start::h98d5f8e6b1673b1c @ cube_bg.wasm:0x1021ef
$main @ cube_bg.wasm:0x1425ea
$__wbindgen_start @ cube_bg.wasm:0x143475
finalizeInit @ cube.js:1767
init @ cube.js:1799
await in init (async)
(anonymous) @ (index):17
load (async)
(anonymous) @ (index):16
cube_bg.wasm:0x143762 Uncaught (in promise) RuntimeError: unreachable
    at __rust_start_panic (cube_bg.wasm:0x143762)
    at rust_panic (cube_bg.wasm:0x141370)
    at std::panicking::rust_panic_with_hook::hbafe3e603d331223 (cube_bg.wasm:0xde7a1)
    at std::panicking::begin_panic_handler::{{closure}}::h8ab6ee68d5b4c391 (cube_bg.wasm:0xf5489)
    at std::sys_common::backtrace::__rust_end_short_backtrace::h008f69666d134159 (cube_bg.wasm:0x13f80b)
    at rust_begin_unwind (cube_bg.wasm:0x11e82c)
    at core::panicking::panic_fmt::h1d17fc068f528130 (cube_bg.wasm:0x138797)
    at core::panicking::panic::h27b5eefa3e4ff738 (cube_bg.wasm:0x122d27)
    at <wgpu::backend::web::Identified<T> as core::convert::From<wgpu::context::ObjectId>>::from::h9886815542be7c36 (cube_bg.wasm:0xddc8c)
    at <T as wgpu::context::DynContext>::adapter_downlevel_capabilities::hfe1ae8c292f8a1bd (cube_bg.wasm:0xeb1d7)
$__rust_start_panic @ cube_bg.wasm:0x143762
$rust_panic @ cube_bg.wasm:0x141370
$std::panicking::rust_panic_with_hook::hbafe3e603d331223 @ cube_bg.wasm:0xde7a1
$std::panicking::begin_panic_handler::{{closure}}::h8ab6ee68d5b4c391 @ cube_bg.wasm:0xf5489
$std::sys_common::backtrace::__rust_end_short_backtrace::h008f69666d134159 @ cube_bg.wasm:0x13f80b
$rust_begin_unwind @ cube_bg.wasm:0x11e82c
$core::panicking::panic_fmt::h1d17fc068f528130 @ cube_bg.wasm:0x138797
$core::panicking::panic::h27b5eefa3e4ff738 @ cube_bg.wasm:0x122d27
$<wgpu::backend::web::Identified<T> as core::convert::From<wgpu::context::ObjectId>>::from::h9886815542be7c36 @ cube_bg.wasm:0xddc8c
$<T as wgpu::context::DynContext>::adapter_downlevel_capabilities::hfe1ae8c292f8a1bd @ cube_bg.wasm:0xeb1d7
$wgpu::Adapter::get_downlevel_capabilities::he50505c609c4bf18 @ cube_bg.wasm:0xe87e6
$cube::framework::setup::{{closure}}::h2c8d338493feb534 @ cube_bg.wasm:0xd89e
$cube::framework::run::{{closure}}::ha02852b6b04d1aa1 @ cube_bg.wasm:0x40415
$wasm_bindgen_futures::task::singlethread::Task::run::h85fa19fdb5864191 @ cube_bg.wasm:0x708fd
$wasm_bindgen_futures::queue::QueueState::run_all::h7eba45539b26bd3b @ cube_bg.wasm:0x61fed
$wasm_bindgen_futures::queue::Queue::new::{{closure}}::hecad0300d40bcbd3 @ cube_bg.wasm:0x104e2a
$<dyn core::ops::function::FnMut<(A,)>+Output = R as wasm_bindgen::closure::WasmClosure>::describe::invoke::h9eb70fd6bf08dbbb @ cube_bg.wasm:0xe24af
__wbg_adapter_58 @ cube.js:256
real @ cube.js:201
Promise.then (async)
imports.wbg.__wbg_then_ec5db6d509eb475f @ cube.js:1639
$js_sys::Promise::then::hc765b1e18f26a8fb @ cube_bg.wasm:0x111089
$wasm_bindgen_futures::queue::Queue::schedule_task::h5fb77c97155bc08a @ cube_bg.wasm:0x9194e
$wasm_bindgen_futures::queue::Queue::push_task::h38d3e586f79fd17d @ cube_bg.wasm:0x13225f
$wasm_bindgen_futures::task::singlethread::Task::wake_by_ref::{{closure}}::hb723899528afaf55 @ cube_bg.wasm:0x121b9c
$std::thread::local::LocalKey<T>::try_with::h5fd4860c396ab55b @ cube_bg.wasm:0x98f2e
$std::thread::local::LocalKey<T>::with::h7cf910003e81a027 @ cube_bg.wasm:0xebca8
$wasm_bindgen_futures::task::singlethread::Task::wake_by_ref::h93bbf92b80a55361 @ cube_bg.wasm:0xe3e00
$wasm_bindgen_futures::task::singlethread::Task::into_raw_waker::raw_wake::hd420b493ef715b60 @ cube_bg.wasm:0x10f997
$core::task::wake::Waker::wake::h700a0c5221fb522b @ cube_bg.wasm:0x11746f
$<wasm_bindgen_futures::JsFuture as core::convert::From<js_sys::Promise>>::from::finish::h2aa3017b3a440aff @ cube_bg.wasm:0x5ac57
$<wasm_bindgen_futures::JsFuture as core::convert::From<js_sys::Promise>>::from::{{closure}}::h2b27b764db4661a8 @ cube_bg.wasm:0xfff91
$core::ops::function::FnOnce::call_once::h4736c9b165ae53b3 @ cube_bg.wasm:0x10e8a7
$<T as wasm_bindgen::closure::WasmClosureFnOnce<A,R>>::into_fn_mut::{{closure}}::h028dae16e38ca713 @ cube_bg.wasm:0x10e991
$<dyn core::ops::function::FnMut<(A,)>+Output = R as wasm_bindgen::closure::WasmClosure>::describe::invoke::h9eb70fd6bf08dbbb @ cube_bg.wasm:0xe24af
__wbg_adapter_58 @ cube.js:256
real @ cube.js:201
Promise.then (async)
imports.wbg.__wbg_then_f753623316e2873a @ cube.js:1643
$js_sys::Promise::then2::h4f6c1b952d5425e0 @ cube_bg.wasm:0x10524c
$<wasm_bindgen_futures::JsFuture as core::convert::From<js_sys::Promise>>::from::h5b68f645d911a127 @ cube_bg.wasm:0x4093f
$<wgpu::backend::web::Context as wgpu::context::Context>::instance_request_adapter::h63a58c2321646861 @ cube_bg.wasm:0xd7450
$<T as wgpu::context::DynContext>::instance_request_adapter::hadc745bf1281ed2b @ cube_bg.wasm:0xacea1
$wgpu::Instance::request_adapter::hababbf79a33ce6c1 @ cube_bg.wasm:0xceeb5
$wgpu::util::init::initialize_adapter_from_env_or_default::{{closure}}::h544d110ed5c3e9b0 @ cube_bg.wasm:0x30420
$cube::framework::setup::{{closure}}::h2c8d338493feb534 @ cube_bg.wasm:0xd55f
$cube::framework::run::{{closure}}::ha02852b6b04d1aa1 @ cube_bg.wasm:0x40415
$wasm_bindgen_futures::task::singlethread::Task::run::h85fa19fdb5864191 @ cube_bg.wasm:0x708fd
$wasm_bindgen_futures::queue::QueueState::run_all::h7eba45539b26bd3b @ cube_bg.wasm:0x61fed
$wasm_bindgen_futures::queue::Queue::new::{{closure}}::hecad0300d40bcbd3 @ cube_bg.wasm:0x104e2a
$<dyn core::ops::function::FnMut<(A,)>+Output = R as wasm_bindgen::closure::WasmClosure>::describe::invoke::h9eb70fd6bf08dbbb @ cube_bg.wasm:0xe24af
__wbg_adapter_58 @ cube.js:256
real @ cube.js:201
Promise.then (async)
imports.wbg.__wbg_then_ec5db6d509eb475f @ cube.js:1639
$js_sys::Promise::then::hc765b1e18f26a8fb @ cube_bg.wasm:0x111089
$wasm_bindgen_futures::queue::Queue::schedule_task::h5fb77c97155bc08a @ cube_bg.wasm:0x9194e
$wasm_bindgen_futures::task::singlethread::Task::spawn::{{closure}}::h152cf58ad470712c @ cube_bg.wasm:0x13229c
$std::thread::local::LocalKey<T>::try_with::h2c5fd51cc9f4da22 @ cube_bg.wasm:0x92cf2
$std::thread::local::LocalKey<T>::with::hbfbf7e0319809d8b @ cube_bg.wasm:0xebd64
$wasm_bindgen_futures::task::singlethread::Task::spawn::h1f716c6645735579 @ cube_bg.wasm:0x60609
$wasm_bindgen_futures::spawn_local::hd9f44bfd728a63ba @ cube_bg.wasm:0x10e21d
$cube::framework::run::he304396696feb99d @ cube_bg.wasm:0xc986a
$cube::main::h01de5355b1d29cbd @ cube_bg.wasm:0x143026
$core::ops::function::FnOnce::call_once::h6d81ba0c73bc1595 @ cube_bg.wasm:0x138c0c
$std::sys_common::backtrace::__rust_begin_short_backtrace::h7f8ed9268b3bb469 @ cube_bg.wasm:0x13a1fc
$std::rt::lang_start::{{closure}}::haeef17a22ccb51f7 @ cube_bg.wasm:0x10cd9c
$std::rt::lang_start_internal::h14d415b51601c1a5 @ cube_bg.wasm:0x93022
$std::rt::lang_start::h98d5f8e6b1673b1c @ cube_bg.wasm:0x1021ef
$main @ cube_bg.wasm:0x1425ea
$__wbindgen_start @ cube_bg.wasm:0x143475
finalizeInit @ cube.js:1767
init @ cube.js:1799
await in init (async)
(anonymous) @ (index):17
load (async)
(anonymous) @ (index):16

[codeart1st]

#3430

[danec020]

#3430

Thanks! That explains the issue well and is probably also why I didn't find this problem already listed. I did not realize it was an issue with dynamic dispatch.