proc_macro::LexError - Rust
Description: API documentation for the Rust `LexError` struct in crate `proc_macro`.
Keywords: rust, rustlang, rust-lang, LexError

# 1.15.0[−][src]Struct proc_macro::LexError

    pub struct LexError { /* fields omitted */ }

Error returned from `TokenStream::from_str`.

## Trait Implementations

### `impl Debug for LexError`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

Formats the value using the given formatter. Read more

### `impl Display for LexError` 1.44.0[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

Formats the value using the given formatter. Read more

### `impl Error for LexError` 1.44.0[src]

#### `fn source(&self) -> Option<&(dyn Error + 'static)>`1.30.0[src]

The lower-level source of this error, if any. Read more

#### `fn backtrace(&self) -> Option<&Backtrace>`[src]

🔬 This is a nightly-only experimental API. (`backtrace` #53487)

Returns a stack backtrace, if available, of where this error occurred. Read more

#### `fn description(&self) -> &str`1.0.0[src]

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

`if let Err(e) = "xc".parse::<u32>() { // Print` e`itself, no need for description(). eprintln!("Error: {}", e); }` Read more

#### `fn cause(&self) -> Option<&dyn Error>`1.0.0[src]

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

### `impl !Send for LexError`[src]

### `impl !Sync for LexError`[src]

## Auto Trait Implementations

### `impl RefUnwindSafe for LexError`

### `impl Unpin for LexError`

### `impl UnwindSafe for LexError`

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `fn type_id(&self) -> TypeId`[src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `fn borrow(&self) -> &T`[src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `fn borrow_mut(&mut self) -> &mut T`[src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T`[src]

#### `fn from(t: T) -> T`[src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `fn into(self) -> U`[src]

Performs the conversion.

### `impl<T> ToString for T where
T: Display + ?Sized,` [src]

#### `default fn to_string(&self) -> String`[src]

Converts the given value to a `String`. Read more

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

#### `fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

Performs the conversion.