Struct rquickjs_core::Value

pub struct Value<'js> { /* private fields */ }

Any javascript value

Implementations

impl<'js> Value<'js>

pub fn new_uninitialized(ctx: Ctx<'js>) -> Self

pub fn new_undefined(ctx: Ctx<'js>) -> Self

pub fn new_null(ctx: Ctx<'js>) -> Self

pub fn new_bool(ctx: Ctx<'js>, value: bool) -> Self

Create new boolean value

pub fn ctx(&self) -> &Ctx<'js>

Returns the Ctx object associated with this value.

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

Try get bool from value

pub fn new_int(ctx: Ctx<'js>, value: i32) -> Self

Create new int value

pub fn as_int(&self) -> Option<i32>

Try get int from value

pub fn new_float(ctx: Ctx<'js>, value: f64) -> Self

Create new float value

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

Try get float from value

pub fn new_number(ctx: Ctx<'js>, value: f64) -> Self

Create a new number value

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

Try get any number from value

pub fn is_null(&self) -> bool

Returns if the value is the JavaScript null value.

pub fn is_undefined(&self) -> bool

Returns if the value is the JavaScript undefined value.

pub fn is_bool(&self) -> bool

Check if the value is a bool

pub fn is_int(&self) -> bool

Check if the value is an int

pub fn is_float(&self) -> bool

Check if the value is a float

pub fn is_number(&self) -> bool

Check if the value is an any number

pub fn is_string(&self) -> bool

Check if the value is a string

pub fn is_symbol(&self) -> bool

Check if the value is a symbol

pub fn is_object(&self) -> bool

Check if the value is an object

pub fn is_module(&self) -> bool

Check if the value is a module

pub fn is_array(&self) -> bool

Check if the value is an array

pub fn is_function(&self) -> bool

Check if the value is a function

pub fn is_constructor(&self) -> bool

Check if the value is a constructor function

pub fn is_exception(&self) -> bool

Check if the value is a constructor function

pub fn is_error(&self) -> bool

Check if the value is an error

pub fn as_value(&self) -> &Self

Reference as value

pub fn get<T: FromJs<'js>>(&self) -> Result<T>

Convert from value to specified type

impl<'js> Value<'js>

pub fn type_of(&self) -> Type

Get the type of value

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

Get the name of type

impl<'js> Value<'js>

pub unsafe fn ref_string(&self) -> &String<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_string(&self) -> Option<&String<'js>>

Try reinterprete as

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

Try convert into

pub fn try_into_string(self) -> Result<String<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_string(value: String<'js>) -> Self

Convert from

impl<'js> Value<'js>

pub unsafe fn ref_symbol(&self) -> &Symbol<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_symbol(&self) -> Option<&Symbol<'js>>

Try reinterprete as

pub fn into_symbol(self) -> Option<Symbol<'js>>

Try convert into

pub fn try_into_symbol(self) -> Result<Symbol<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_symbol(value: Symbol<'js>) -> Self

Convert from

impl<'js> Value<'js>

pub unsafe fn ref_object(&self) -> &Object<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_object(&self) -> Option<&Object<'js>>

Try reinterprete as

pub fn into_object(self) -> Option<Object<'js>>

Try convert into

pub fn try_into_object(self) -> Result<Object<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_object(value: Object<'js>) -> Self

Convert from

impl<'js> Value<'js>

pub unsafe fn ref_function(&self) -> &Function<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_function(&self) -> Option<&Function<'js>>

Try reinterprete as

pub fn into_function(self) -> Option<Function<'js>>

Try convert into

pub fn try_into_function(self) -> Result<Function<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_function(value: Function<'js>) -> Self

Convert from

impl<'js> Value<'js>

pub unsafe fn ref_constructor(&self) -> &Constructor<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_constructor(&self) -> Option<&Constructor<'js>>

Try reinterprete as

pub fn into_constructor(self) -> Option<Constructor<'js>>

Try convert into

pub fn try_into_constructor(self) -> Result<Constructor<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_constructor(value: Constructor<'js>) -> Self

Convert from

impl<'js> Value<'js>

pub unsafe fn ref_array(&self) -> &Array<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_array(&self) -> Option<&Array<'js>>

Try reinterprete as

pub fn into_array(self) -> Option<Array<'js>>

Try convert into

pub fn try_into_array(self) -> Result<Array<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_array(value: Array<'js>) -> Self

Convert from

impl<'js> Value<'js>

pub unsafe fn ref_exception(&self) -> &Exception<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_exception(&self) -> Option<&Exception<'js>>

Try reinterprete as

pub fn into_exception(self) -> Option<Exception<'js>>

Try convert into

pub fn try_into_exception(self) -> Result<Exception<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_exception(value: Exception<'js>) -> Self

Convert from

impl<'js> Value<'js>

pub unsafe fn ref_big_int(&self) -> &BigInt<'js>

Interprete as

Safety

You should be sure that the value already is of required type before to do it.

pub fn as_big_int(&self) -> Option<&BigInt<'js>>

Try reinterprete as

pub fn into_big_int(self) -> Option<BigInt<'js>>

Try convert into

pub fn try_into_big_int(self) -> Result<BigInt<'js>, Value<'js>>

Try convert into returning self if the conversion fails

pub fn from_big_int(value: BigInt<'js>) -> Self

Convert from

Trait Implementations

impl<'js> AsRef<Value<'js>> for Array<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for ArrayBuffer<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for BigInt<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for Constructor<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for Exception<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for Function<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for Object<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for String<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for Symbol<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js, T> AsRef<Value<'js>> for TypedArray<'js, T>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> AsRef<Value<'js>> for Value<'js>

fn as_ref(&self) -> &Value<'js>

Converts this type into a shared reference of the (usually inferred) input type.

impl<'js> Clone for Value<'js>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'js> Debug for Value<'js>

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

Formats the value using the given formatter.

impl<'js> Drop for Value<'js>

fn drop(&mut self)

Executes the destructor for this type.

impl<'js> From<Array<'js>> for Value<'js>

fn from(value: Array<'js>) -> Self

Converts to this type from the input type.

impl<'js> From<BigInt<'js>> for Value<'js>

fn from(value: BigInt<'js>) -> Self

Converts to this type from the input type.

impl<'js> From<Constructor<'js>> for Value<'js>

fn from(value: Constructor<'js>) -> Self

Converts to this type from the input type.

impl<'js> From<Exception<'js>> for Value<'js>

fn from(value: Exception<'js>) -> Self

Converts to this type from the input type.

impl<'js> From<Function<'js>> for Value<'js>

fn from(value: Function<'js>) -> Self

Converts to this type from the input type.

impl<'js> From<Object<'js>> for Value<'js>

fn from(value: Object<'js>) -> Self

Converts to this type from the input type.

impl<'js> From<String<'js>> for Value<'js>

fn from(value: String<'js>) -> Self

Converts to this type from the input type.

impl<'js> From<Symbol<'js>> for Value<'js>

fn from(value: Symbol<'js>) -> Self

Converts to this type from the input type.

impl<'js> FromAtom<'js> for Value<'js>

fn from_atom(atom: Atom<'js>) -> Result<Self>

impl<'js> FromJs<'js> for Value<'js>

fn from_js(_: &Ctx<'js>, value: Value<'js>) -> Result<Self>

impl<'js> IntoAtom<'js> for Value<'js>

fn into_atom(self, ctx: &Ctx<'js>) -> Result<Atom<'js>>

impl<'js> IntoJs<'js> for &Value<'js>

fn into_js(self, _: &Ctx<'js>) -> Result<Value<'js>>

impl<'js> IntoJs<'js> for Value<'js>

fn into_js(self, _: &Ctx<'js>) -> Result<Value<'js>>

impl<'js> Outlive<'js> for Value<'js>

type Target<'to> = Value<'to>

The target which has the same type as a Self but with another lifetime 't

impl<'js> PartialEq<Value<'js>> for Value<'js>

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'js> Trace<'js> for Value<'js>

fn trace<'a>(&self, tracer: Tracer<'a, 'js>)