Enum QuoteStyle 

pub enum QuoteStyle {
    None,
    Single,
    Double,
    UnicodeDouble,
    Backtick,
    Bracket,
}

Surface quote spelling for an identifier.

Variants

None

Unquoted — a bare identifier.

Single

Single quotes '…'. Not an identifier delimiter in standard SQL — this records a MySQL string literal used as a column alias (SELECT 1 AS 'x'), whose value is interned as the identifier and rendered back single-quoted so it round-trips.

Double

Double-quoted "…" — the standard SQL delimited identifier.

UnicodeDouble

PostgreSQL / SQL-standard Unicode-escaped delimited identifier U&"…", optionally followed by a UESCAPE 'c' clause. Like Double the delimiter is a double quote, but the body carries \XXXX / \+XXXXXX escapes decoded against the default \ (or the UESCAPE override). The interned sym holds the decoded value — target-neutral, so a TargetDialect re-spell and the redacted fingerprint emit the plain "…" form — while a source-fidelity render replays the exact U&"…" [UESCAPE 'c'] spelling from the node’s span. The distinct variant is what tells the renderer the decoded value and the source spelling differ (a plain Double ident’s value already is its spelling).

Backtick

Backtick-quoted `…` (MySQL).

Bracket

Bracket-quoted […] (T-SQL).

Trait Implementations

impl Clone for QuoteStyle

fn clone(&self) -> QuoteStyle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QuoteStyle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QuoteStyle

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for QuoteStyle

impl Hash for QuoteStyle

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for QuoteStyle

fn eq(&self, other: &QuoteStyle) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for QuoteStyle

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for QuoteStyle