JsValue

Enum JsValue

pub enum JsValue {
Show 13 variants    Undefined,
    Null,
    Bool(bool),
    Int(i32),
    Float(f64),
    String(String),
    Array(Vec<JsValue>),
    Object(HashMap<String, JsValue>),
    Resource(ResourceValue),
    Raw(RawJSValue),
    Exception(RawJSValue),
    Date(DateTime<Utc>),
    BigInt(BigInt),
    // some variants omitted
}

Expand description

A value that can be (de)serialized to/from the quickjs runtime.

Variants§

Undefined

Null

Bool(bool)

Int(i32)

Float(f64)

String(String)

Array(Vec<JsValue>)

Object(HashMap<String, JsValue>)

Resource(ResourceValue)

Raw(RawJSValue)

Exception(RawJSValue)

Date(DateTime<Utc>)

chrono::Datetime / JS Date integration. Only available with the optional chrono feature.

BigInt(BigInt)

num_bigint::BigInt / JS BigInt integration Only available with the optional bigint feature

Implementations§

impl JsValue

pub fn create_object( context: *mut JSContext, map: HashMap<String, JsValue>, ) -> Result<Self, ValueError>

pub fn value_type(&self) -> &'static str

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

Cast value to a str.

Returns Some(&str) if value is a JsValue::String, None otherwise.

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

Convert to String.

pub fn new_resource<T: Any>(value: T) -> Self

pub fn as_resource<T: Any, R, F: FnOnce(&mut T) -> R>( &self, callback: F, ) -> Option<R>

pub fn get_properties(&self) -> Option<HashMap<String, JsValue>>

pub fn call_as_function( &self, args: Vec<JsValue>, ) -> Result<JsValue, ExecutionError>

Trait Implementations§

impl Clone for JsValue

fn clone(&self) -> JsValue

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for JsValue

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

Formats the value using the given formatter. Read more

impl<'a> From<&'a str> for JsValue

fn from(val: &'a str) -> Self

Converts to this type from the input type.

impl From<BigInt> for JsValue

fn from(value: BigInt) -> Self

Converts to this type from the input type.

impl<T> From<Option<T>> for JsValue
where T: Into<JsValue>,

fn from(opt: Option<T>) -> Self

Converts to this type from the input type.

impl From<String> for JsValue

fn from(value: String) -> Self

Converts to this type from the input type.

impl<T> From<Vec<T>> for JsValue
where T: Into<JsValue>,

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

Converts to this type from the input type.

impl From<bool> for JsValue

fn from(value: bool) -> Self

Converts to this type from the input type.

impl From<f64> for JsValue

fn from(value: f64) -> Self

Converts to this type from the input type.

impl From<i128> for JsValue

fn from(value: i128) -> Self

Converts to this type from the input type.

impl From<i16> for JsValue

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for JsValue

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i64> for JsValue

fn from(value: i64) -> Self

Converts to this type from the input type.

impl From<i8> for JsValue

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<u128> for JsValue

fn from(value: u128) -> Self

Converts to this type from the input type.

impl From<u16> for JsValue

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for JsValue

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for JsValue

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u8> for JsValue

fn from(value: u8) -> Self

Converts to this type from the input type.

impl TryFrom<JsValue> for BigInt

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for String

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl<T> TryFrom<JsValue> for Vec<T>
where T: TryFrom<JsValue>,

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for bool

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for f64

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for i128

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for i32

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for i64

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for u128

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<JsValue> for u64

type Error = ValueError

The type returned in the event of a conversion error.

fn try_from(value: JsValue) -> Result<Self, Self::Error>

Performs the conversion.

Auto Trait Implementations§

impl Freeze for JsValue

impl !RefUnwindSafe for JsValue

impl !Send for JsValue

impl !Sync for JsValue

impl Unpin for JsValue

impl !UnwindSafe for JsValue

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.