Rust Result.unwrap_err用法及代码示例本文简要介绍rust语言中 core::result::Result.unwrap_err 的用法。 用法 pub fn unwrap_err(self) -> E 返回包含的 Err 值,使用 self 值。 Panics 如果值为 Ok 则发生Panics,并由 Ok 的值提供自定义Panics消息。 例子 let x: Result = Ok(2); x.unwrap_err();...
unwrap_err()` on an `Ok` value: MethodCallee { def_id: DefId(2:3465 ~ core[c9a4]::ops::arith::Add::add), args: [&'?1 N/#0, N/#0], sig: fn(&'?1 N/#0, N/#0) -> ?4t } stack backtrace: 0: 0x71bc56a6ea2a - <std::sys::backtrace::BacktraceLock::print::...
foo.ok().unwrap() and foo.err().unwrap() are the fallbacks for types that aren't Show. Closes #13379
代码实例 func (rcvr *CQL) Compile(ctx context.Context) string { defer func() { if err := recover...(); err !..."[FillStructInfo] rcvr=%v, resultRecord=%...
Re: ESP32 + SSD1306 - called `Result::unwrap()` on an `Err` value: BusWriteError Postby35p32fan»Sat Dec 16, 2023 12:44 pm changed the gpio 21 with 22 and 22 with 21 now it works 2 posts • Page1of1 Return to “Rust” ...
【Rust每周一知】Rust为什么会有String和&str？!长文预警!
unwrap: thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "系统找不到指定的文件。" }', src\main.rs:3:53 stack backtrace: 0: rust_begin_unwind at /rustc/9eb3afe9ebe9c7d2b84b71002d44f4a0edac95e0/library\std\sr...
thread 'rustc' panicked at compiler/rustc_infer/src/infer/generalize.rs:28:40: called `Result::unwrap_err()` on an `Ok` value: ?11t Backtrace stack backtrace: 0: 0x10f2ee0cb - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2d0631316f3b55...
Result.prototype.unsafelyUnwrapErr We removed these when we made it possible to directly access.valueand (forResult).errorafter narrowing, because that is always safe to do and guides users toward a happy path. However, it can be rather annoying for tests, not least for tests where “does ...
thread 'main' panicked at /home/runner/.cargo/git/checkouts/lopdf-0013854ec52a6141/c25cef3/src/document.rs:446:83: called `Result::unwrap()` on an `Err` value: ReferenceCycle stack backtrace: 0: rust_begin_unwind at /rustc/91376f416222a238227c84a848d168835ede2cc3/library/std/src/...