Enum rustc_ast::ast::LitKind[][src]

pub enum LitKind {
    Str(SymbolStrStyle),
    ByteStr(Lrc<[u8]>),
    Byte(u8),
    Char(char),
    Int(u128LitIntType),
    Float(SymbolLitFloatType),
    Bool(bool),
    Err(Symbol),
}
Expand description

Literal kind.

E.g., "foo", 42, 12.34, or bool.

Variants

Str(SymbolStrStyle)

A string literal ("foo").

Tuple Fields of Str

0: Symbol1: StrStyle
ByteStr(Lrc<[u8]>)

A byte string (b"foo").

Tuple Fields of ByteStr

0: Lrc<[u8]>
Byte(u8)

A byte char (b'f').

Tuple Fields of Byte

0: u8
Char(char)

A character literal ('a').

Tuple Fields of Char

0: char
Int(u128LitIntType)

An integer literal (1).

Tuple Fields of Int

0: u1281: LitIntType
Float(SymbolLitFloatType)

A float literal (1f64 or 1E10f64).

Tuple Fields of Float

0: Symbol1: LitFloatType
Bool(bool)

A boolean literal.

Tuple Fields of Bool

0: bool
Err(Symbol)

Placeholder for a literal that wasn’t well-formed in some way.

Tuple Fields of Err

0: Symbol

Implementations

Converts literal token into a semantic literal.

Attempts to recover a token from semantic literal. This function is used when the original token doesn’t exist (e.g. the literal is created by an AST-based macro) or unavailable (e.g. from HIR pretty-printing).

Returns true if this literal is a string.

Returns true if this literal is byte literal string.

Returns true if this is a numeric literal.

Returns true if this literal has no suffix. Note: this will return true for literals with prefixes such as raw strings and byte strings.

Returns true if this literal has a suffix.

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

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 !=.

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

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

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.

Layout

Note: Most layout information is completely unstable and may be different between compiler versions and platforms. 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: 24 bytes