Struct rustc_span::symbol::Ident

source ·
pub struct Ident {
    pub name: Symbol,
    pub span: Span,
}

Fields

name: Symbolspan: Span

Implementations

Constructs a new identifier from a symbol and a span.

Constructs a new identifier with a dummy span.

Maps a string to an identifier with a dummy span.

Maps a string and a span to an identifier.

Replaces lo and hi with those from span, but keep hygiene context.

“Normalize” ident for use in comparisons using “item hygiene”. Identifiers with same string value become same if they came from the same macro 2.0 macro (e.g., macro item, but not macro_rules item) and stay different if they came from different macro 2.0 macros. Technically, this operation strips all non-opaque marks from ident’s syntactic context.

“Normalize” ident for use in comparisons using “local variable hygiene”. Identifiers with same string value become same if they came from the same non-transparent macro (e.g., macro or macro_rules! items) and stay different if they came from different non-transparent macros. Technically, this operation strips all transparent marks from ident’s syntactic context.

Access the underlying string. This is a slowish operation because it requires locking the symbol interner.

Note that the lifetime of the return value is a lie. See Symbol::as_str() for details.

Returns true if the token is a keyword used in the language.

Returns true if the token is a keyword reserved for possible future use.

Returns true if the token is either a special identifier or a keyword.

A keyword or reserved identifier that can be used as a path segment.

We see this identifier in a normal identifier position, like variable name or a type. How was it written originally? Did it use the raw form? Let’s try to guess.

Trait Implementations

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more

This implementation is supposed to be used in error messages, so it’s expected to be identical to printing the original identifier token written in source code (token_to_string), except that AST identifiers don’t keep the rawness flag, so we have to guess it.

Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 12 bytes