Enum Value 

pub enum Value {
    Str(String),
    Int(i64),
    UInt(u64),
    Float(f64),
    Bool(bool),
    Null,
    Dict(Vec<(String, Value)>),
    List(Vec<Value>),
    F32Array(Vec<f32>),
    Param(String, Option<Box<Span>>),
    PositionalParam(usize, Option<Box<Span>>),
}

QQL literal value: string, number, bool, null, object, or list.

Variants

Str(String)

String literal ('…').

Int(i64)

Integer literal.

UInt(u64)

Unsigned integer literal: bare digit literals that overflow i64 (up to u64::MAX) parse here instead of failing or becoming strings.

Float(f64)

Floating-point literal.

Bool(bool)

Boolean literal (true / false).

Null

null literal.

Dict(Vec<(String, Value)>)

{key: value, …} object; entries keep their written order.

List(Vec<Value>)

[v1, v2, …] list literal (also dense vector input).

F32Array(Vec<f32>)

Flat array of f32 (dense vector). Bypasses per-element float boxing.

Param(String, Option<Box<Span>>)

Named parameter placeholder (:name).

PositionalParam(usize, Option<Box<Span>>)

Positional parameter placeholder (?).

Implementations

impl Value

pub fn dict_get(&self, key: &str) -> Option<&Value>

Case-insensitive lookup of a Dict entry; None for non-dict values.

pub fn dict_set(&mut self, key: String, value: Value) -> bool

Set a key in a Dict (case-insensitive replace) or append it.

Returns true when this value is a dict and the key was written; false when called on a non-dict (nothing is mutated).

pub fn as_str(&self) -> Option<&str>

Borrow the string contents, if this value is a Str.

pub fn param(name: impl Into<String>) -> Self

Construct an unlocated named parameter placeholder.

pub fn param_with_span(name: impl Into<String>, span: Span) -> Self

Construct a located named parameter placeholder.

pub fn positional_param(idx: usize) -> Self

Construct an unlocated positional parameter placeholder.

pub fn positional_param_with_span(idx: usize, span: Span) -> Self

Construct a located positional parameter placeholder.

pub fn param_name(&self) -> Option<&str>

Extract the parameter name if this is a named parameter.

pub fn param_span(&self) -> Option<Span>

Extract the parameter source span if present.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl From<Vec<f32>> for Value

fn from(values: Vec<f32>) -> Self

Converts to this type from the input type.

impl PartialEq for Value

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Value