Struct chakracore::value::Boolean
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[src]
pub struct Boolean(_);
A JavaScript boolean.
Methods
impl Boolean[src]
fn new(_guard: &ContextGuard, boolean: bool) -> Self
Creates a new boolean.
fn value(&self) -> bool
Converts a JavaScript boolean to a bool.
fn is_same(value: &Value) -> bool
Returns true if the value is a Boolean.
impl Boolean[src]
unsafe fn from_raw(value: JsRef) -> Boolean
Creates an instance from a raw pointer.
This is used for managing the lifetime of JSRT objects. They are
tracked using reference counting; incrementing with from_raw,
and decrementing with drop.
This is required to support items stored on the heap, since the JSRT runtime only observes the stack.
If used in conjunction with a Property or any Value, it is
assumed a Context is active.
fn as_raw(&self) -> JsRef
Returns the underlying raw pointer.
Methods from Deref<Target = Value>
fn is_undefined(&self) -> bool
Returns true if this value is undefined.
fn is_null(&self) -> bool
Returns true if this value is null.
fn is_number(&self) -> bool
Returns true if this value is a Number.
fn into_number(self) -> Option<Number>
Represent the value as a Number. Does not affect the underlying value.
fn is_string(&self) -> bool
Returns true if this value is a String.
fn into_string(self) -> Option<String>
Represent the value as a String. Does not affect the underlying value.
fn is_boolean(&self) -> bool
Returns true if this value is a Boolean.
fn into_boolean(self) -> Option<Boolean>
Represent the value as a Boolean. Does not affect the underlying value.
fn is_object(&self) -> bool
Returns true if this value is an Object.
fn into_object(self) -> Option<Object>
Represent the value as an Object. Does not affect the underlying value.
fn is_external(&self) -> bool
Returns true if this value is an External.
fn into_external(self) -> Option<External>
Represent the value as an External. Does not affect the underlying value.
fn is_function(&self) -> bool
Returns true if this value is a Function.
fn into_function(self) -> Option<Function>
Represent the value as a Function. Does not affect the underlying value.
fn is_array(&self) -> bool
Returns true if this value is an Array.
fn into_array(self) -> Option<Array>
Represent the value as an Array. Does not affect the underlying value.
fn is_array_buffer(&self) -> bool
Returns true if this value is an ArrayBuffer.
fn into_array_buffer(self) -> Option<ArrayBuffer>
Represent the value as an ArrayBuffer. Does not affect the underlying value.
fn is_promise(&self) -> bool
Returns true if this value is a Promise.
fn into_promise(self) -> Option<Promise>
Represent the value as a Promise. Does not affect the underlying value.
fn to_string(&self, _guard: &ContextGuard) -> String
Converts the value to a native string, containing the value's string representation.
fn to_integer(&self, _guard: &ContextGuard) -> i32
Converts the value to a native integer, containing the value's integer representation.
fn to_double(&self, _guard: &ContextGuard) -> f64
Converts the value to a native double, containing the value's floating point representation.
fn to_bool(&self, _guard: &ContextGuard) -> bool
Converts the value to a native boolean, containing the value's bool representation.
fn to_json(&self, guard: &ContextGuard) -> Result<String>
Converts the value to a native string, containing the value's JSON representation.
fn boolean_representation(&self, _guard: &ContextGuard) -> Boolean
Creates a new boolean with this value represented as Boolean.
fn number_representation(&self, _guard: &ContextGuard) -> Number
Creates a new number with this value represented as Number.
fn object_representation(&self, _guard: &ContextGuard) -> Object
Creates a new object with this value represented as Object.
fn string_representation(&self, _guard: &ContextGuard) -> String
Creates a new string with this value represented as String.
fn get_type(&self) -> JsValueType
Returns the type of the value. This method should be used with
consideration. It does not keep track of custom types, such as
External. It only returns the runtime's definition of a type.
fn equals(&self, _guard: &ContextGuard, that: &Value) -> bool
Compare two values for equality (==).
fn strict_equals(&self, _guard: &ContextGuard, that: &Value) -> bool
Compare two values for strict equality (===).
Trait Implementations
impl Clone for Boolean[src]
fn clone(&self) -> Boolean
Duplicates a reference counted type.
The underlying pointer will be copied, and its reference count will be incremented, returned wrapped as the type.
fn clone_from(&mut self, source: &Self)1.0.0
Performs copy-assignment from source. Read more
impl Drop for Boolean[src]
fn drop(&mut self)
Decrements the reference counter if the object is recyclable.