pub enum LiteralKind {
    Verbatim,
    Meta,
    Superfluous,
    Octal,
    HexFixed(HexLiteralKind),
    HexBrace(HexLiteralKind),
    Special(SpecialLiteralKind),
}
Expand description

The kind of a single literal expression.

Variants

Verbatim

The literal is written verbatim, e.g., a or .

Meta

The literal is written as an escape because it is otherwise a special regex meta character, e.g., \* or \[.

Superfluous

The literal is written as an escape despite the fact that the escape is unnecessary, e.g., \% or \/.

Octal

The literal is written as an octal escape, e.g., \141.

HexFixed(HexLiteralKind)

The literal is written as a hex code with a fixed number of digits depending on the type of the escape, e.g., \x61 or or \u0061 or \U00000061.

HexBrace(HexLiteralKind)

The literal is written as a hex code with a bracketed number of digits. The only restriction is that the bracketed hex code must refer to a valid Unicode scalar value.

Special(SpecialLiteralKind)

The literal is written as a specially recognized escape, e.g., \f or \n.

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 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
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.