Struct sljs::object::JSObject

pub struct JSObject { /* private fields */ }

Javascript objects. A JSObject always has a proto. It can have an optional ObjectValue (a primitive or array/function/closure). It has a dictionary of properties.

Implementations

impl JSObject

pub fn new() -> JSObject

pub fn from_func(f: HostFn) -> JSObject

Wrap the given native call into a Function.

pub fn from_closure(closure: Closure) -> JSObject

Wrap the given closure into a Function.

pub fn from_array(values: Vec<JSValue>) -> JSObject

Wrap the given vector into an Array.

pub fn from_bool(value: bool) -> JSObject

Wrap the given bool into Boolean

pub fn get_proto(&self) -> JSRef

pub fn set_proto(&mut self, proto: JSRef)

pub fn to_primitive(&self) -> Option<JSValue>

It’s roughly Object.valueOf(self)

pub fn as_array(&self) -> Option<&JSArray>

It self is an Array, give its underlying storage.

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

If self is an Array, give its underlying storage mutably.

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

If self is a String, get it primitive value

pub fn is_callable(&self) -> bool

pub fn as_hostfn(&self) -> Option<HostFunc>

pub fn as_closure(&self) -> Option<Closure>

pub fn get_own_property(&self, name: &str) -> Option<Property>

pub fn get_own_value(&self, name: &str) -> Option<JSValue>

Tries to get JSValue of the own property name. This might call getters of the property.

pub fn lookup_value(&self, name: &str, heap: &Heap) -> Option<JSValue>

Check own and all inherited properties for name and returns the first found value. ES5: [[Get]], None corresponds to undefined

pub fn protochain<'a>(&self, heap: &'a Heap) -> ProtoChainIter<'a>

pub fn get_own_keys(&self) -> Vec<JSString>

pub fn get_own_enumerable_keys(&self) -> Vec<JSString>

pub fn define_own_property(
    &mut self,
    name: JSString,
    access: Access
) -> JSResult<()>

pub fn delete_property(&mut self, name: JSString) -> JSResult<()>

pub fn set_property<V>(&mut self, name: JSString, value: V) -> JSResult<()> where
    Content: From<V>, 

If name is a number and self is an Array, just set the array elemnt to value. Otherwise: if the own property name does not exist, create it with Access::all() and set to Content::from(value). If the own property exists already, call .set() with its current access. This will fail to update non-writable properties. ES5: [[Put]] with strict error handing

pub fn set_even_nonwritable<V>(
    &mut self,
    name: JSString,
    value: V
) -> JSResult<()> where
    Content: From<V>, 

Just like .set_property(), but updates even non-writable properties.

pub fn set_system<V>(&mut self, name: JSString, value: V) -> JSResult<()> where
    Content: From<V>, 

A shortcut for define_own_property(Access::NONE) and assigning the value.

pub fn set_hidden<V>(&mut self, name: JSString, value: V) -> JSResult<()> where
    Content: From<V>, 

A shortcut for defining a non-enumerable property and setting its value.

pub fn set_nonconf<V>(&mut self, name: JSString, value: V) -> JSResult<()> where
    Content: From<V>, 

A shortcut for defining a non-configurable property and setting its value.

pub fn set_readonly<V>(&mut self, name: JSString, value: V) -> JSResult<()> where
    Content: From<V>, 

A shortcut for defining a non-writable property and setting its value.

pub fn to_json(&self, heap: &Heap) -> JSResult<JSON>

Create a JSON from this JSObject.

pub fn to_string(&self, heap: &mut Heap) -> JSResult<JSString>

Create a human-readable representation of contents of an Array or an Object.

Trait Implementations

impl Clone for JSObject

fn clone(&self) -> JSObject

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for JSObject

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

Formats the value using the given formatter.

impl Default for JSObject

fn default() -> Self

Returns the “default value” for a type.

impl<S> From<S> for JSObject where
    JSString: From<S>, 

fn from(s: S) -> Self

Converts to this type from the input type.