Enum Value 

pub enum Value {
    Null,
    Bool(bool),
    Int(i64),
    Float(f64),
    Decimal(Decimal),
    String(String),
    Array(Vec<Value>),
    Object(HashMap<String, Value>),
    ObjectRef(ObjectHandle),
}

Language-agnostic value representation

This enum can represent any value that needs to be passed between the core library and language bindings. It maps to JSON types for easy serialization when communicating with the solver service.

Example

use solverforge_core::Value;

let int_val = Value::from(42i64);
assert_eq!(int_val.as_int(), Some(42));

let str_val = Value::from("hello");
assert_eq!(str_val.as_str(), Some("hello"));

Variants

Null

Null/None value

Bool(bool)

Boolean value

Int(i64)

Integer value (64-bit)

Float(f64)

Floating point value

Decimal(Decimal)

Decimal value for precise arithmetic (scores, etc.)

String(String)

String value

Array(Vec<Value>)

Array/List of values

Object(HashMap<String, Value>)

Object/Map of string keys to values

ObjectRef(ObjectHandle)

Reference to a host language object

Implementations

impl Value

pub fn is_null(&self) -> bool

Check if this value is null

pub fn as_bool(&self) -> Option<bool>

Try to get this value as a boolean

pub fn as_int(&self) -> Option<i64>

Try to get this value as an integer

pub fn as_float(&self) -> Option<f64>

Try to get this value as a float

This will also convert integers to floats.

pub fn as_decimal(&self) -> Option<Decimal>

Try to get this value as a decimal

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

Try to get this value as a string

pub fn as_array(&self) -> Option<&Vec<Value>>

Try to get this value as an array

pub fn as_array_mut(&mut self) -> Option<&mut Vec<Value>>

Try to get this value as a mutable array

pub fn as_object(&self) -> Option<&HashMap<String, Value>>

Try to get this value as an object/map

pub fn as_object_mut(&mut self) -> Option<&mut HashMap<String, Value>>

Try to get this value as a mutable object/map

pub fn as_object_ref(&self) -> Option<ObjectHandle>

Try to get this value as an object handle

impl Value

pub fn from_json_value(json: Value) -> Self

Convert from a serde_json::Value

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 Default for Value

fn default() -> Value

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Value

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&str> for Value

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<Decimal> for Value

fn from(d: Decimal) -> Self

Converts to this type from the input type.

impl From<ObjectHandle> for Value

fn from(handle: ObjectHandle) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<Value> for Value

fn from(json: Value) -> Self

Converts to this type from the input type.

impl<T: Into<Value>> From<Vec<T>> for Value

fn from(v: Vec<T>) -> Self

Converts to this type from the input type.

impl From<bool> for Value

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<f32> for Value

fn from(f: f32) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(f: f64) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(i: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(i: i64) -> Self

Converts to this type from the input type.

impl<K: Into<String>, V: Into<Value>> FromIterator<(K, V)> for Value

fn from_iter<I: IntoIterator<Item = (K, V)>>(iter: I) -> Self

Creates a value from an iterator.

impl PartialEq for Value

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

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 Value