# Struct proc_macro::Ident[−][src]

    pub struct Ident { /* fields omitted */ }

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

An identifier (`ident`).

## Methods

###

`impl Ident`

[src]

####

`pub fn new(string: &str, span: Span) -> Ident`

[src]

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

Creates a new `Ident` with the given `string` as well as the specified `span`. The `string` argument must be a valid identifier permitted by the language, otherwise the function will panic.

Note that `span`, currently in rustc, configures the hygiene information for this identifier.

As of this time `Span::call_site()` explicitly opts-in to "call-site" hygiene meaning that identifiers created with this span will be resolved as if they were written directly at the location of the macro call, and other code at the macro call site will be able to refer to them as well.

Later spans like `Span::def_site()` will allow to opt-in to "definition-site" hygiene meaning that identifiers created with this span will be resolved at the location of the macro definition and other code at the macro call site will not be able to refer to them.

Due to the current importance of hygiene this constructor, unlike other tokens, requires a `Span` to be specified at construction.

####

`pub fn new_raw(string: &str, span: Span) -> Ident`

[src]

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

Same as `Ident::new`, but creates a raw identifier (`r#ident`).

####

`pub fn span(&self) -> Span`

[src]

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

Returns the span of this `Ident`, encompassing the entire string returned by `as_str`.

####

`pub fn set_span(&mut self, span: Span)`

[src]

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

Configures the span of this `Ident`, possibly changing its hygiene context.

## Trait Implementations

###

`impl From<Ident> for TokenTree`

[src]

####

`fn from(g: Ident) -> TokenTree`

[src]

Performs the conversion.

###

`impl Clone for Ident`

[src]

####

`fn clone(&self) -> Ident`

[src]

Returns a copy of the value. Read more

####

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

1.0.0
[src]

Performs copy-assignment from `source`. Read more

###

`impl Debug for Ident`

[src]

####

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

[src]

Formats the value using the given formatter. Read more

###

`impl !Send for Ident`

[src]

###

`impl !Sync for Ident`

[src]

###

`impl Display for Ident`

[src]

Prints the identifier as a string that should be losslessly convertible back into the same identifier.

####

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

[src]

Formats the value using the given formatter. Read more

# Help

## Keyboard Shortcuts

`?`
  Show this help dialog
`S`
  Focus the search field
`↑`
  Move up in search results
`↓`
  Move down in search results
`↹`
  Switch tab
`⏎`
  Go to active search result
`+`
  Expand all sections
`-`
  Collapse all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)

Search multiple things at once by splitting your query with comma (e.g. `str,u8` or `String,struct:Vec,test`)