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

# Struct proc_macro::Span [−] [src]

    pub struct Span(_);

🔬 This is a nightly-only experimental API. (`proc_macro` #38356)

A region of source code, along with macro expansion information.

## Methods

### `impl Span`
[src]

#### `fn call_site() -> Span`

🔬 This is a nightly-only experimental API. (`proc_macro` #38356)

The span of the invocation of the current procedural macro.

## Trait Implementations

### `impl Copy for Span`
[src]

### `impl Clone for Span`
[src]

#### `fn clone(&self) -> Span`

Returns a copy of the value. Read more

#### `fn clone_from(&mut self, source: &Self)`
1.0.0

Performs copy-assignment from `source`. Read more

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

#### `fn fmt(&self, __arg_0: &mut Formatter) -> Result`

Formats the value using the given formatter.

### `impl Default for Span`
[src]

#### `fn default() -> Span`

Returns the "default value" for a type. Read more

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