Struct EvalError Copy item path

impl EvalError

pub fn new(message: &str) -> EvalError

Available on crate feature dep_js_sys only.

The EvalError object indicates an error regarding the global eval() function. This exception is not thrown by JavaScript anymore, however the EvalError object remains for compatibility.

Methods from Deref<Target = Object>§

pub fn constructor(&self) -> Function

Available on crate feature dep_js_sys only.

The constructor property returns a reference to the Object constructor function that created the instance object.

pub fn has_own_property(&self, property: &JsValue) -> bool

Available on crate feature dep_js_sys only.

The hasOwnProperty() method returns a boolean indicating whether the object has the specified property as its own property (as opposed to inheriting it).

pub fn is_prototype_of(&self, value: &JsValue) -> bool

Available on crate feature dep_js_sys only.

The isPrototypeOf() method checks if an object exists in another object’s prototype chain.

pub fn property_is_enumerable(&self, property: &JsValue) -> bool

Available on crate feature dep_js_sys only.

The propertyIsEnumerable() method returns a Boolean indicating whether the specified property is enumerable.

pub fn to_locale_string(&self) -> JsString

Available on crate feature dep_js_sys only.

The toLocaleString() method returns a string representing the object. This method is meant to be overridden by derived objects for locale-specific purposes.

pub fn to_string(&self) -> JsString

Available on crate feature dep_js_sys only.

The toString() method returns a string representing the object.

pub fn value_of(&self) -> Object

Available on crate feature dep_js_sys only.

The valueOf() method returns the primitive value of the specified object.

Methods from Deref<Target = JsValue>§

pub const NULL: JsValue

pub const TRUE: JsValue

pub fn as_f64(&self) -> Option<f64> ⓘ

Available on crate feature dep_js_sys only.

Returns the f64 value of this JS value if it’s an instance of a number.

If this JS value is not an instance of a number then this returns None.

pub fn is_string(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether this JS value is a JS string.

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

Available on crate feature dep_js_sys only.

If this JS value is a string value, this function copies the JS string value into Wasm linear memory, encoded as UTF-8, and returns it as a Rust String.

To avoid the copying and re-encoding, consider the JsString::try_from() function from js-sys instead.

If this JS value is not an instance of a string or if it’s not valid utf-8 then this returns None.

§UTF-16 vs UTF-8

JavaScript strings in general are encoded as UTF-16, but Rust strings are encoded as UTF-8. This can cause the Rust string to look a bit different than the JS string sometimes. For more details see the documentation about the str type which contains a few caveats about the encodings.

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

Available on crate feature dep_js_sys only.

Returns the bool value of this JS value if it’s an instance of a boolean.

If this JS value is not an instance of a boolean then this returns None.

pub fn is_null(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether this JS value is null

pub fn is_undefined(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether this JS value is undefined

pub fn is_symbol(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether the type of this JS value is symbol

pub fn is_object(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether typeof self == "object" && self !== null.

pub fn is_array(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether this JS value is an instance of Array.

pub fn is_function(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether the type of this JS value is function.

pub fn is_bigint(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether the type of this JS value is bigint.

pub fn js_typeof(&self) -> JsValue

Available on crate feature dep_js_sys only.

Applies the unary typeof JS operator on a JsValue.

pub fn js_in(&self, obj: &JsValue) -> bool

Available on crate feature dep_js_sys only.

Applies the binary in JS operator on the two JsValues.

pub fn is_truthy(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether the value is “truthy”.

pub fn is_falsy(&self) -> bool

Available on crate feature dep_js_sys only.

Tests whether the value is “falsy”.

pub fn loose_eq(&self, other: &JsValue) -> bool

Available on crate feature dep_js_sys only.

Compare two JsValues for equality, using the == operator in JS.

pub fn bit_not(&self) -> JsValue

Available on crate feature dep_js_sys only.

Applies the unary ~ JS operator on a JsValue.

pub fn unsigned_shr(&self, rhs: &JsValue) -> u32 ⓘ

Available on crate feature dep_js_sys only.

Applies the binary >>> JS operator on the two JsValues.

pub fn checked_div(&self, rhs: &JsValue) -> JsValue

Available on crate feature dep_js_sys only.

Applies the binary / JS operator on two JsValues, catching and returning any RangeError thrown.

pub fn pow(&self, rhs: &JsValue) -> JsValue

Available on crate feature dep_js_sys only.

Applies the binary ** JS operator on the two JsValues.

pub fn lt(&self, other: &JsValue) -> bool

Available on crate feature dep_js_sys only.

Applies the binary < JS operator on the two JsValues.

pub fn le(&self, other: &JsValue) -> bool

Available on crate feature dep_js_sys only.

Applies the binary <= JS operator on the two JsValues.

pub fn ge(&self, other: &JsValue) -> bool

Available on crate feature dep_js_sys only.

Applies the binary >= JS operator on the two JsValues.

pub fn gt(&self, other: &JsValue) -> bool

Available on crate feature dep_js_sys only.

Applies the binary > JS operator on the two JsValues.

pub fn unchecked_into_f64(&self) -> f64 ⓘ

Available on crate feature dep_js_sys only.

Applies the unary + JS operator on a JsValue. Can throw.

Trait Implementations§

impl AsRef<Error> for EvalError

fn as_ref(&self) -> &Error

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

impl AsRef<EvalError> for EvalError

fn as_ref(&self) -> &EvalError

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

impl AsRef<JsValue> for EvalError

fn as_ref(&self) -> &JsValue

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

impl AsRef<Object> for EvalError

fn as_ref(&self) -> &Object

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

impl Clone for EvalError

fn clone(&self) -> EvalError

Returns a copy 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 EvalError

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

Formats the value using the given formatter. Read more

impl Deref for EvalError

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Object

Dereferences the value.

impl From<EvalError> for Error

fn from(obj: EvalError) -> Error

Converts to this type from the input type.

impl From<EvalError> for JsValue

fn from(obj: EvalError) -> JsValue

Converts to this type from the input type.

impl From<EvalError> for Object

fn from(obj: EvalError) -> Object

Converts to this type from the input type.

impl From<JsValue> for EvalError

fn from(obj: JsValue) -> EvalError

Converts to this type from the input type.

impl FromWasmAbi for EvalError

type Abi = <JsValue as FromWasmAbi>::Abi

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: <EvalError as FromWasmAbi>::Abi) -> EvalError

Recover a Self from Self::Abi. Read more

impl<'a> IntoWasmAbi for &'a EvalError

type Abi = <&'a JsValue as IntoWasmAbi>::Abi

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> <&'a EvalError as IntoWasmAbi>::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl IntoWasmAbi for EvalError

type Abi = <JsValue as IntoWasmAbi>::Abi

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> <EvalError as IntoWasmAbi>::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl JsCast for EvalError

fn instanceof(val: &JsValue) -> bool

Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type. Read more

fn unchecked_from_js(val: JsValue) -> EvalError

Performs a zero-cost unchecked conversion from a JsValue into an instance of Self Read more

fn unchecked_from_js_ref(val: &JsValue) -> &EvalError

Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self. Read more

fn has_type<T>(&self) -> bool
where T: JsCast,

Test whether this JS value has a type T. Read more

fn dyn_into<T>(self) -> Result<T, Self> ⓘ
where T: JsCast,

Performs a dynamic cast (checked at runtime) of this value into the target type T. Read more

fn dyn_ref<T>(&self) -> Option<&T> ⓘ
where T: JsCast,

Performs a dynamic cast (checked at runtime) of this value into the target type T. Read more

fn unchecked_into<T>(self) -> T
where T: JsCast,

Performs a zero-cost unchecked cast into the specified type. Read more

fn unchecked_ref<T>(&self) -> &T
where T: JsCast,

Performs a zero-cost unchecked cast into a reference to the specified type. Read more

fn is_instance_of<T>(&self) -> bool
where T: JsCast,

Test whether this JS value is an instance of the type T. Read more

fn is_type_of(val: &JsValue) -> bool

Performs a dynamic check to see whether the JsValue provided is a value of this type. Read more

impl LongRefFromWasmAbi for EvalError

type Abi = <JsValue as LongRefFromWasmAbi>::Abi

Same as RefFromWasmAbi::Abi

type Anchor = EvalError

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi( js: <EvalError as LongRefFromWasmAbi>::Abi, ) -> <EvalError as LongRefFromWasmAbi>::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for EvalError

fn is_none(abi: &<EvalError as FromWasmAbi>::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl<'a> OptionIntoWasmAbi for &'a EvalError

fn none() -> <&'a EvalError as IntoWasmAbi>::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option. Read more

impl OptionIntoWasmAbi for EvalError

fn none() -> <EvalError as IntoWasmAbi>::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option. Read more

impl PartialEq for EvalError

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

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

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

impl RefFromWasmAbi for EvalError

type Abi = <JsValue as RefFromWasmAbi>::Abi

The Wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<EvalError>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi( js: <EvalError as RefFromWasmAbi>::Abi, ) -> <EvalError as RefFromWasmAbi>::Anchor

Recover a Self::Anchor from Self::Abi. Read more

impl Eq for EvalError

impl StructuralPartialEq for EvalError

Auto Trait Implementations§

impl UnwindSafe for EvalError

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> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

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> ByteSized for T

const BYTE_ALIGN: usize = _

The alignment of this type in bytes.

const BYTE_SIZE: usize = _

The size of this type in bytes.

fn byte_align(&self) -> usize ⓘ

Returns the alignment of this type in bytes.

fn byte_size(&self) -> usize ⓘ

Returns the size of this type in bytes. Read more

fn ptr_size_ratio(&self) -> [usize; 2]

Returns the size ratio between Ptr::BYTES and BYTE_SIZE. Read more

impl<T, R> Chain<R> for T
where T: ?Sized,

fn chain<F>(self, f: F) -> R
where F: FnOnce(Self) -> R, Self: Sized,

Chain a function which takes the parameter by value.

fn chain_ref<F>(&self, f: F) -> R
where F: FnOnce(&Self) -> R,

Chain a function which takes the parameter by shared reference.

fn chain_mut<F>(&mut self, f: F) -> R
where F: FnOnce(&mut Self) -> R,

Chain a function which takes the parameter by exclusive reference.

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

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

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

Performs copy-assignment from self to dst. Read more

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<T> ExtAny for T
where T: Any + ?Sized,

fn type_id() -> TypeId

Returns the TypeId of Self. Read more

fn type_of(&self) -> TypeId

Returns the TypeId of self. Read more

fn type_name(&self) -> &'static str ⓘ

Returns the type name of self. Read more

fn type_is<T: 'static>(&self) -> bool

Returns true if Self is of type T. Read more

fn as_any_ref(&self) -> &dyn Any
where Self: Sized,

Upcasts &self as &dyn Any. Read more

fn as_any_mut(&mut self) -> &mut dyn Any
where Self: Sized,

Upcasts &mut self as &mut dyn Any. Read more

fn as_any_box(self: Box<Self>) -> Box<dyn Any>
where Self: Sized,

Upcasts Box<self> as Box<dyn Any>. Read more

fn downcast_ref<T: 'static>(&self) -> Option<&T> ⓘ

Available on crate feature unsafe_layout only.

Returns some shared reference to the inner value if it is of type T. Read more

fn downcast_mut<T: 'static>(&mut self) -> Option<&mut T> ⓘ

Available on crate feature unsafe_layout only.

Returns some exclusive reference to the inner value if it is of type T. Read more

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

const NEEDS_DROP: bool = _

Know whether dropping values of this type matters, in compile-time.

fn mem_align_of<T>() -> usize ⓘ

Returns the minimum alignment of the type in bytes. Read more

fn mem_align_of_val(&self) -> usize ⓘ

Returns the alignment of the pointed-to value in bytes. Read more

fn mem_size_of<T>() -> usize ⓘ

Returns the size of a type in bytes. Read more

fn mem_size_of_val(&self) -> usize ⓘ

Returns the size of the pointed-to value in bytes. Read more

fn mem_copy(&self) -> Self
where Self: Copy,

Bitwise-copies a value. Read more

fn mem_needs_drop(&self) -> bool

Returns true if dropping values of this type matters. Read more

fn mem_drop(self)
where Self: Sized,

Drops self by running its destructor. Read more

fn mem_forget(self)
where Self: Sized,

Forgets about self without running its destructor. Read more

fn mem_replace(&mut self, other: Self) -> Self
where Self: Sized,

Replaces self with other, returning the previous value of self. Read more

fn mem_take(&mut self) -> Self
where Self: Default,

Replaces self with its default value, returning the previous value of self. Read more

fn mem_swap(&mut self, other: &mut Self)
where Self: Sized,

Swaps the value of self and other without deinitializing either one. Read more

unsafe fn mem_zeroed<T>() -> T

Available on crate feature unsafe_layout only.

Returns the value of type T represented by the all-zero byte-pattern. Read more

unsafe fn mem_transmute_copy<Src, Dst>(src: &Src) -> Dst

Available on crate feature unsafe_layout only.

Returns the value of type T represented by the all-zero byte-pattern. Read more

fn mem_as_bytes(&self) -> &[u8] ⓘ
where Self: Sync + Unpin,

Available on crate feature unsafe_slice only.

View a Sync + Unpin self as &[u8]. Read more

fn mem_as_bytes_mut(&mut self) -> &mut [u8] ⓘ
where Self: Sync + Unpin,

Available on crate feature unsafe_slice only.

View a Sync + Unpin self as &mut [u8]. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<S> FromSample<S> for S

fn from_sample_(s: S) -> S

impl<T> Hook for T

fn hook_ref<F>(self, f: F) -> Self
where F: FnOnce(&Self),

Applies a function which takes the parameter by shared reference, and then returns the (possibly) modified owned value. Read more

fn hook_mut<F>(self, f: F) -> Self
where F: FnOnce(&mut Self),

Applies a function which takes the parameter by exclusive reference, and then returns the (possibly) modified owned value. Read more

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into 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> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more