Enum Identifier 

pub enum Identifier {
    Simple(SimpleIdentifier),
    Compound(CompoundIdentifier),
}

A pure AST identifier that is either simple or compound (no errors)

Variants

Simple(SimpleIdentifier)

Compound(CompoundIdentifier)

Implementations

impl Identifier

pub fn try_unwrap_simple(self) -> Result<SimpleIdentifier, TryUnwrapError<Self>>

Attempts to unwrap this value to the Identifier::Simple variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

pub fn try_unwrap_compound( self, ) -> Result<CompoundIdentifier, TryUnwrapError<Self>>

Attempts to unwrap this value to the Identifier::Compound variant. Returns a [TryUnwrapError] with the original value if this value is of any other type.

impl Identifier

pub fn parse(s: impl Into<String>) -> Result<Self, TranslationError>

pub fn infer_from_expression(expr: &Expression) -> Option<ParsedIdentifier>

Attempt to infer an identifier from an expression’s AST structure. Returns None if the expression doesn’t have an inferable identifier (caller should fall back to source text).

This is used during CST→AST parsing to desugar bare expressions into assignments by inferring the field name from the expression structure.

pub fn first(&self) -> SimpleIdentifier

Returns the first component of this identifier.

pub fn prefixes(&self) -> IdentifierPrefixes<'_>

Returns an iterator over all strict prefixes of this identifier. For example, x.y.z yields x, then x.y. Simple identifiers have no prefixes and return an empty iterator.

pub fn rest(&self) -> Option<Identifier>

Returns the rest of this identifier after removing the first component. Manually dispatches to the concrete type implementations.

pub fn last(&self) -> SimpleIdentifier

Returns the last component of this identifier.

pub fn has_prefix(&self, prefix: &Identifier) -> bool

Check if this identifier has the given prefix (without doing the stripping work). Returns true if prefix is a strict prefix of self. Returns false if they are equal or if prefix doesn’t match.

pub fn strip_prefix(&self, prefix: &Identifier) -> Option<Identifier>

Strip a prefix from this identifier, returning the suffix. Manually dispatches to the concrete type implementations.

pub fn segments(&self) -> &[SimpleIdentifier]

Returns a slice of SimpleIdentifier references for each segment of this identifier. For simple identifiers, returns a single-element slice. For compound identifiers, returns a slice of all parts.

Trait Implementations

impl Add for Identifier

fn add(self, suffix: Identifier) -> Identifier

Combine two identifiers into a compound identifier. This is useful for building nested field paths like prefix + field_name.

type Output = Identifier

The resulting type after applying the + operator.

impl Clone for Identifier

fn clone(&self) -> Identifier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Identifier

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

Formats the value using the given formatter.

impl Display for Identifier

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

Formats the value using the given formatter.

impl From<&str> for Identifier

fn from(name: &str) -> Self

Converts to this type from the input type.

impl From<CompoundIdentifier> for Identifier

fn from(value: CompoundIdentifier) -> Self

Converts to this type from the input type.

impl From<Identifier> for Expression

fn from(ident: Identifier) -> Self

Converts to this type from the input type.

impl From<Identifier> for Identifier

fn from(ast_ident: Identifier) -> Self

Converts to this type from the input type.

impl From<Identifier> for Identifier

fn from(sql_ident: SqlIdentifier) -> Self

Converts to this type from the input type.

impl From<Identifier> for ParsedIdentifier

fn from(value: Identifier) -> Self

Converts to this type from the input type.

impl From<Identifier> for ResolvedSelection

fn from(value: Identifier) -> Self

Converts to this type from the input type.

impl From<Identifier> for TableReference

fn from(identifier: Identifier) -> Self

Converts to this type from the input type.

impl From<IdentifierBuilder> for Identifier

fn from(builder: IdentifierBuilder) -> Self

Converts to this type from the input type.

impl From<SimpleIdentifier> for Identifier

fn from(value: SimpleIdentifier) -> Self

Converts to this type from the input type.

impl From<SimpleIdentifier> for Identifier

fn from(sql_ident: SqlSimpleIdentifier) -> Self

Converts to this type from the input type.

impl From<String> for Identifier

fn from(name: String) -> Self

Converts to this type from the input type.

impl Hash for Identifier

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 IntoExpressionBuilder for &Identifier

fn into_expression_builder(self) -> Box<dyn ExpressionBuilder>

impl IntoExpressionBuilder for Identifier

fn into_expression_builder(self) -> Box<dyn ExpressionBuilder>

impl PartialEq for Identifier

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Spannable for Identifier

fn span(&self) -> Option<RangeInclusive<usize>>

impl Eq for Identifier

impl StructuralPartialEq for Identifier