Enum evalexpr::Value

pub enum Value {
    String(String),
    Float(f64),
    Int(i64),
    Boolean(bool),
    Tuple(Vec<Value>),
}

The value type used by the parser. Values can be of different subtypes that are the variants of this enum.

Variants

String(String)

A string value.

Float(f64)

A float value.

Int(i64)

An integer value.

Boolean(bool)

A boolean value.

Tuple(Vec<Value>)

A tuple value.

Methods

impl Value

pub fn is_int(&self) -> bool

Returns true if self is a Value::Int.

pub fn is_float(&self) -> bool

Returns true if self is a Value::Float.

pub fn as_int(&self) -> Result<i64, Error>

Returns self as a IntType, or Err if self is not a Value::Int.

pub fn as_float(&self) -> Result<f64, Error>

Returns self as a FloatType, or Err if self is not a Value::Float or Value::Int.

Trait Implementations

impl PartialEq<Value> for Value

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl From<String> for Value

fn from(string: String) -> Self

Performs the conversion.

impl<'_> From<&'_ str> for Value

fn from(string: &str) -> Self

Performs the conversion.

impl From<f64> for Value

fn from(float: f64) -> Self

Performs the conversion.

impl From<i64> for Value

fn from(int: i64) -> Self

Performs the conversion.

impl From<bool> for Value

fn from(boolean: bool) -> Self

Performs the conversion.

impl From<Vec<Value>> for Value

fn from(tuple: Vec<Value>) -> Self

Performs the conversion.

impl From<Value> for Result<Value, Error>

fn from(value: Value) -> Self

Performs the conversion.

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Display for Value

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

Formats the value using the given formatter.

impl Debug for Value

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

Formats the value using the given formatter.