Struct ValueWithSpan

pub struct ValueWithSpan {
    pub value: Value,
    pub span: Span,
}

Wraps a primitive SQL Value with its Span location

Example: create a ValueWithSpan from a Value

let value = Value::SingleQuotedString(String::from("endpoint"));
// from line 1, column 1 to line 1, column 7
let span = Span::new(Location::new(1, 1), Location::new(1, 7));
let value_with_span = value.with_span(span);

Example: create a ValueWithSpan from a Value with an empty span

You can call Value::with_empty_span to create a ValueWithSpan with an empty span

let value = Value::SingleQuotedString(String::from("endpoint"));
let value_with_span = value.with_empty_span();
assert_eq!(value_with_span.span, Span::empty());

You can also use the From trait to convert ValueWithSpan to/from Values

let value = Value::SingleQuotedString(String::from("endpoint"));
// converting `Value` to `ValueWithSpan` results in an empty span
let value_with_span: ValueWithSpan = value.into();
assert_eq!(value_with_span.span, Span::empty());
// convert back to `Value`
let value: Value = value_with_span.into();

Fields

value: Value

span: Span

Implementations

impl ValueWithSpan

pub fn into_string(self) -> Option<String>

If the underlying literal is a string, regardless of quote style, returns the associated string value

Trait Implementations

impl Clone for ValueWithSpan

fn clone(&self) -> ValueWithSpan

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ValueWithSpan

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

Formats the value using the given formatter.

impl Display for ValueWithSpan

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

Formats the value using the given formatter.

impl From<Value> for ValueWithSpan

fn from(value: Value) -> ValueWithSpan

Converts to this type from the input type.

impl From<ValueWithSpan> for Value

fn from(value: ValueWithSpan) -> Value

Converts to this type from the input type.

impl Hash for ValueWithSpan

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

where H: Hasher,

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 Ord for ValueWithSpan

fn cmp(&self, other: &ValueWithSpan) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ValueWithSpan

fn eq(&self, other: &ValueWithSpan) -> 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 PartialOrd for ValueWithSpan

fn partial_cmp(&self, other: &ValueWithSpan) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Spanned for ValueWithSpan

fn span(&self) -> Span

Return the Span (the minimum and maximum Location) for this AST node, by recursively combining the spans of its children.

impl Visit for ValueWithSpan

fn visit<V>(&self, visitor: &mut V) -> ControlFlow<<V as Visitor>::Break>

where V: Visitor,

impl VisitMut for ValueWithSpan

fn visit<V>(&mut self, visitor: &mut V) -> ControlFlow<<V as VisitorMut>::Break>

where V: VisitorMut,

impl Eq for ValueWithSpan