Enum DataValue 

pub enum DataValue {
    Number(f64),
    Text(String),
    Bool(bool),
    Null,
    List(Vec<DataValue>),
    Object(Vec<(String, DataValue)>),
}

ECharts data is loosely typed: a point can be a bare number, a [name, value] pair, or an object with named fields. The chart crate keeps the same flexibility, so an existing ECharts dataset can be ported without reshaping it.

Variants

Number(f64)

A numeric value.

Text(String)

A text value.

Bool(bool)

A boolean value.

Null

An explicit null.

List(Vec<DataValue>)

A list of values.

Object(Vec<(String, DataValue)>)

An object with named fields, in insertion order.

Implementations

impl DataValue

Inherent implementation of DataValue.

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

Returns the numeric value, when the value is a number.

Returns

• Option<f64> - Some(...) on success, None otherwise.

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

Returns the numeric value, parsing a text value when needed.

Returns

• Option<f64> - Some(...) on success, None otherwise.

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

Returns the text value, when the value is text.

Returns

• Option<&str> - Some(...) on success, None otherwise.

pub fn as_list(&self) -> Option<&[DataValue]>

Returns the list value, when the value is a list.

Returns

• Option<&[DataValue]> - Some(...) on success, None otherwise.

pub fn as_object(&self) -> Option<&[(String, DataValue)]>

Returns the object value, when the value is an object.

Returns

• Option<&[(String, DataValue)]> - Some(...) on success, None otherwise.

pub fn get(&self, name: &str) -> Option<&DataValue>

Looks up a named field of an object value.

Arguments

• &str - Shared reference to a str.

Returns

• Option<&DataValue> - Some(...) on success, None otherwise.

pub fn get_mut(&mut self, name: &str) -> Option<&mut DataValue>

Looks up a named field of an object value, mutably.

Arguments

• &str - Shared reference to a str.

Returns

• Option<&mut DataValue> - Some(...) on success, None otherwise.

pub fn as_object_mut(&mut self) -> Option<&mut [(String, DataValue)]>

Returns the object value, mutably, when the value is an object.

Returns

• Option<&mut [(String, DataValue)]> - Some(...) on success, None otherwise.

pub fn is_null(&self) -> bool

Returns true when the value carries no data.

Returns

• bool - A boolean.

Trait Implementations

impl Clone for DataValue

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataValue

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

Formats the value using the given formatter.

impl Default for DataValue

fn default() -> Self

Returns the “default value” for a type.

impl From<&str> for DataValue

From conversion into DataValue.

fn from(value: &str) -> Self

Converts a &str into DataValue.

Arguments

• &str - Input value to convert from.

impl From<String> for DataValue

From conversion into DataValue.

fn from(value: String) -> Self

Converts a String into DataValue.

Arguments

• String - Input value to convert from.

impl From<Vec<DataValue>> for DataValue

From conversion into DataValue.

fn from(value: Vec<DataValue>) -> Self

Lifts a Vec<DataValue> into DataValue.

Arguments

• Vec<DataValue> - Input value to convert from.

impl From<bool> for DataValue

From conversion into DataValue.

fn from(value: bool) -> Self

Converts a bool into DataValue.

Arguments

• bool - Input value to convert from.

impl From<f64> for DataValue

From conversion into DataValue.

fn from(value: f64) -> Self

Converts a f64 into DataValue.

Arguments

• f64 - Input value to convert from.

impl From<i32> for DataValue

From conversion into DataValue.

fn from(value: i32) -> Self

Converts a i32 into DataValue.

Arguments

• i32 - Input value to convert from.

impl PartialEq for DataValue

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DataValue