[−][src]Struct rusty_v8::Value

#[repr(C)]pub struct Value(_);

The superclass of all JavaScript values and objects.

Implementations

`impl Value`[src]

`pub fn is_undefined(&self) -> bool`[src]

Returns true if this value is the undefined value. See ECMA-262 4.3.10.

`pub fn is_null(&self) -> bool`[src]

Returns true if this value is the null value. See ECMA-262 4.3.11.

`pub fn is_null_or_undefined(&self) -> bool`[src]

Returns true if this value is either the null or the undefined value. See ECMA-262 4.3.11. and 4.3.12

`pub fn is_true(&self) -> bool`[src]

Returns true if this value is true. This is not the same as BooleanValue(). The latter performs a conversion to boolean, i.e. the result of Boolean(value) in JS, whereas this checks value === true.

`pub fn is_false(&self) -> bool`[src]

Returns true if this value is false. This is not the same as !BooleanValue(). The latter performs a conversion to boolean, i.e. the result of !Boolean(value) in JS, whereas this checks value === false.

`pub fn is_name(&self) -> bool`[src]

Returns true if this value is a symbol or a string. This is equivalent to typeof value === 'string' || typeof value === 'symbol' in JS.

`pub fn is_string(&self) -> bool`[src]

Returns true if this value is an instance of the String type. See ECMA-262 8.4.

`pub fn is_symbol(&self) -> bool`[src]

Returns true if this value is a symbol. This is equivalent to typeof value === 'symbol' in JS.

`pub fn is_function(&self) -> bool`[src]

Returns true if this value is a function.

`pub fn is_array(&self) -> bool`[src]

Returns true if this value is an array. Note that it will return false for an Proxy for an array.

`pub fn is_object(&self) -> bool`[src]

Returns true if this value is an object.

`pub fn is_big_int(&self) -> bool`[src]

Returns true if this value is a bigint. This is equivalent to typeof value === 'bigint' in JS.

`pub fn is_boolean(&self) -> bool`[src]

Returns true if this value is boolean. This is equivalent to typeof value === 'boolean' in JS.

`pub fn is_number(&self) -> bool`[src]

Returns true if this value is a number.

`pub fn is_external(&self) -> bool`[src]

Returns true if this value is an External object.

`pub fn is_int32(&self) -> bool`[src]

Returns true if this value is a 32-bit signed integer.

`pub fn is_uint32(&self) -> bool`[src]

Returns true if this value is a 32-bit unsigned integer.

`pub fn is_date(&self) -> bool`[src]

Returns true if this value is a Date.

`pub fn is_arguments_object(&self) -> bool`[src]

Returns true if this value is an Arguments object.

`pub fn is_big_int_object(&self) -> bool`[src]

Returns true if this value is a BigInt object.

`pub fn is_boolean_object(&self) -> bool`[src]

Returns true if this value is a Boolean object.

`pub fn is_number_object(&self) -> bool`[src]

Returns true if this value is a Number object.

`pub fn is_string_object(&self) -> bool`[src]

Returns true if this value is a String object.

`pub fn is_symbol_object(&self) -> bool`[src]

Returns true if this value is a Symbol object.

`pub fn is_native_error(&self) -> bool`[src]

Returns true if this value is a NativeError.

`pub fn is_reg_exp(&self) -> bool`[src]

Returns true if this value is a RegExp.

`pub fn is_async_function(&self) -> bool`[src]

Returns true if this value is an async function.

`pub fn is_generator_function(&self) -> bool`[src]

Returns true if this value is a Generator function.

`pub fn is_promise(&self) -> bool`[src]

Returns true if this value is a Promise.

`pub fn is_map(&self) -> bool`[src]

Returns true if this value is a Map.

`pub fn is_set(&self) -> bool`[src]

Returns true if this value is a Set.

`pub fn is_map_iterator(&self) -> bool`[src]

Returns true if this value is a Map Iterator.

`pub fn is_set_iterator(&self) -> bool`[src]

Returns true if this value is a Set Iterator.

`pub fn is_weak_map(&self) -> bool`[src]

Returns true if this value is a WeakMap.

`pub fn is_weak_set(&self) -> bool`[src]

Returns true if this value is a WeakSet.

`pub fn is_array_buffer(&self) -> bool`[src]

Returns true if this value is an ArrayBuffer.

`pub fn is_array_buffer_view(&self) -> bool`[src]

Returns true if this value is an ArrayBufferView.

`pub fn is_typed_array(&self) -> bool`[src]

Returns true if this value is one of TypedArrays.

`pub fn is_uint8_array(&self) -> bool`[src]

Returns true if this value is an Uint8Array.

`pub fn is_uint8_clamped_array(&self) -> bool`[src]

Returns true if this value is an Uint8ClampedArray.

`pub fn is_int8_array(&self) -> bool`[src]

Returns true if this value is an Int8Array.

`pub fn is_uint16_array(&self) -> bool`[src]

Returns true if this value is an Uint16Array.

`pub fn is_int16_array(&self) -> bool`[src]

Returns true if this value is an Int16Array.

`pub fn is_uint32_array(&self) -> bool`[src]

Returns true if this value is an Uint32Array.

`pub fn is_int32_array(&self) -> bool`[src]

Returns true if this value is an Int32Array.

`pub fn is_float32_array(&self) -> bool`[src]

Returns true if this value is a Float32Array.

`pub fn is_float64_array(&self) -> bool`[src]

Returns true if this value is a Float64Array.

`pub fn is_big_int64_array(&self) -> bool`[src]

Returns true if this value is a BigInt64Array.

`pub fn is_big_uint64_array(&self) -> bool`[src]

Returns true if this value is a BigUint64Array.

`pub fn is_data_view(&self) -> bool`[src]

Returns true if this value is a DataView.

`pub fn is_shared_array_buffer(&self) -> bool`[src]

Returns true if this value is a SharedArrayBuffer. This is an experimental feature.

`pub fn is_proxy(&self) -> bool`[src]

Returns true if this value is a JavaScript Proxy.

`pub fn is_wasm_module_object(&self) -> bool`[src]

Returns true if this value is a WasmModuleObject.

`pub fn is_module_namespace_object(&self) -> bool`[src]

Returns true if the value is a Module Namespace Object.

`pub fn strict_equals(&self, that: Local<'_, Value>) -> bool`[src]

`pub fn same_value(&self, that: Local<'_, Value>) -> bool`[src]

`pub fn same_value_zero(&self, that: Local<'_, Value>) -> bool`[src]

Implements the the abstract operation SameValueZero, which is defined in ECMA-262 6th edition § 7.2.10 (http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero).

This operation is used to compare values for the purpose of insertion into a Set, or determining whether Map keys are equivalent. Its semantics are almost the same as strict_equals() and same_value(), with the following important distinctions: