pub struct FileSystemDirectoryEntry { /* private fields */ }
Expand description
The FileSystemDirectoryEntry
class.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
Implementations§
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn create_reader(&self) -> FileSystemDirectoryReader
pub fn create_reader(&self) -> FileSystemDirectoryReader
The createReader()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemDirectoryReader
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory(&self)
pub fn get_directory(&self)
The getDirectory()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path(&self, path: Option<&str>)
pub fn get_directory_with_path(&self, path: Option<&str>)
The getDirectory()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path_and_options(
&self,
path: Option<&str>,
options: &FileSystemFlags,
)
pub fn get_directory_with_path_and_options( &self, path: Option<&str>, options: &FileSystemFlags, )
The getDirectory()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path_and_options_and_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &Function,
)
pub fn get_directory_with_path_and_options_and_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &Function, )
The getDirectory()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path_and_options_and_file_system_entry_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &FileSystemEntryCallback,
)
pub fn get_directory_with_path_and_options_and_file_system_entry_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &FileSystemEntryCallback, )
The getDirectory()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemEntryCallback
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path_and_options_and_callback_and_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &Function,
error_callback: &Function,
)
pub fn get_directory_with_path_and_options_and_callback_and_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &Function, error_callback: &Function, )
The getDirectory()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path_and_options_and_file_system_entry_callback_and_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &FileSystemEntryCallback,
error_callback: &Function,
)
pub fn get_directory_with_path_and_options_and_file_system_entry_callback_and_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &FileSystemEntryCallback, error_callback: &Function, )
The getDirectory()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemEntryCallback
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path_and_options_and_callback_and_error_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &Function,
error_callback: &ErrorCallback,
)
pub fn get_directory_with_path_and_options_and_callback_and_error_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &Function, error_callback: &ErrorCallback, )
The getDirectory()
method.
This API requires the following crate features to be activated: ErrorCallback
, FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_directory_with_path_and_options_and_file_system_entry_callback_and_error_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &FileSystemEntryCallback,
error_callback: &ErrorCallback,
)
pub fn get_directory_with_path_and_options_and_file_system_entry_callback_and_error_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &FileSystemEntryCallback, error_callback: &ErrorCallback, )
The getDirectory()
method.
This API requires the following crate features to be activated: ErrorCallback
, FileSystemDirectoryEntry
, FileSystemEntryCallback
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path(&self, path: Option<&str>)
pub fn get_file_with_path(&self, path: Option<&str>)
The getFile()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path_and_options(
&self,
path: Option<&str>,
options: &FileSystemFlags,
)
pub fn get_file_with_path_and_options( &self, path: Option<&str>, options: &FileSystemFlags, )
The getFile()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path_and_options_and_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &Function,
)
pub fn get_file_with_path_and_options_and_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &Function, )
The getFile()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path_and_options_and_file_system_entry_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &FileSystemEntryCallback,
)
pub fn get_file_with_path_and_options_and_file_system_entry_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &FileSystemEntryCallback, )
The getFile()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemEntryCallback
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path_and_options_and_callback_and_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &Function,
error_callback: &Function,
)
pub fn get_file_with_path_and_options_and_callback_and_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &Function, error_callback: &Function, )
The getFile()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path_and_options_and_file_system_entry_callback_and_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &FileSystemEntryCallback,
error_callback: &Function,
)
pub fn get_file_with_path_and_options_and_file_system_entry_callback_and_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &FileSystemEntryCallback, error_callback: &Function, )
The getFile()
method.
This API requires the following crate features to be activated: FileSystemDirectoryEntry
, FileSystemEntryCallback
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path_and_options_and_callback_and_error_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &Function,
error_callback: &ErrorCallback,
)
pub fn get_file_with_path_and_options_and_callback_and_error_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &Function, error_callback: &ErrorCallback, )
The getFile()
method.
This API requires the following crate features to be activated: ErrorCallback
, FileSystemDirectoryEntry
, FileSystemFlags
Source§impl FileSystemDirectoryEntry
impl FileSystemDirectoryEntry
Sourcepub fn get_file_with_path_and_options_and_file_system_entry_callback_and_error_callback(
&self,
path: Option<&str>,
options: &FileSystemFlags,
success_callback: &FileSystemEntryCallback,
error_callback: &ErrorCallback,
)
pub fn get_file_with_path_and_options_and_file_system_entry_callback_and_error_callback( &self, path: Option<&str>, options: &FileSystemFlags, success_callback: &FileSystemEntryCallback, error_callback: &ErrorCallback, )
The getFile()
method.
This API requires the following crate features to be activated: ErrorCallback
, FileSystemDirectoryEntry
, FileSystemEntryCallback
, FileSystemFlags
Methods from Deref<Target = FileSystemEntry>§
Sourcepub fn is_file(&self) -> bool
pub fn is_file(&self) -> bool
Getter for the isFile
field of this object.
This API requires the following crate features to be activated: FileSystemEntry
Sourcepub fn is_directory(&self) -> bool
pub fn is_directory(&self) -> bool
Getter for the isDirectory
field of this object.
This API requires the following crate features to be activated: FileSystemEntry
Sourcepub fn name(&self) -> String
pub fn name(&self) -> String
Getter for the name
field of this object.
This API requires the following crate features to be activated: FileSystemEntry
Sourcepub fn full_path(&self) -> String
pub fn full_path(&self) -> String
Getter for the fullPath
field of this object.
This API requires the following crate features to be activated: FileSystemEntry
Sourcepub fn filesystem(&self) -> FileSystem
pub fn filesystem(&self) -> FileSystem
Getter for the filesystem
field of this object.
This API requires the following crate features to be activated: FileSystem
, FileSystemEntry
Sourcepub fn get_parent(&self)
pub fn get_parent(&self)
The getParent()
method.
This API requires the following crate features to be activated: FileSystemEntry
Sourcepub fn get_parent_with_callback(&self, success_callback: &Function)
pub fn get_parent_with_callback(&self, success_callback: &Function)
The getParent()
method.
This API requires the following crate features to be activated: FileSystemEntry
Sourcepub fn get_parent_with_file_system_entry_callback(
&self,
success_callback: &FileSystemEntryCallback,
)
pub fn get_parent_with_file_system_entry_callback( &self, success_callback: &FileSystemEntryCallback, )
The getParent()
method.
This API requires the following crate features to be activated: FileSystemEntry
, FileSystemEntryCallback
Sourcepub fn get_parent_with_callback_and_callback(
&self,
success_callback: &Function,
error_callback: &Function,
)
pub fn get_parent_with_callback_and_callback( &self, success_callback: &Function, error_callback: &Function, )
The getParent()
method.
This API requires the following crate features to be activated: FileSystemEntry
Sourcepub fn get_parent_with_file_system_entry_callback_and_callback(
&self,
success_callback: &FileSystemEntryCallback,
error_callback: &Function,
)
pub fn get_parent_with_file_system_entry_callback_and_callback( &self, success_callback: &FileSystemEntryCallback, error_callback: &Function, )
The getParent()
method.
This API requires the following crate features to be activated: FileSystemEntry
, FileSystemEntryCallback
Sourcepub fn get_parent_with_callback_and_error_callback(
&self,
success_callback: &Function,
error_callback: &ErrorCallback,
)
pub fn get_parent_with_callback_and_error_callback( &self, success_callback: &Function, error_callback: &ErrorCallback, )
The getParent()
method.
This API requires the following crate features to be activated: ErrorCallback
, FileSystemEntry
Sourcepub fn get_parent_with_file_system_entry_callback_and_error_callback(
&self,
success_callback: &FileSystemEntryCallback,
error_callback: &ErrorCallback,
)
pub fn get_parent_with_file_system_entry_callback_and_error_callback( &self, success_callback: &FileSystemEntryCallback, error_callback: &ErrorCallback, )
The getParent()
method.
This API requires the following crate features to be activated: ErrorCallback
, FileSystemEntry
, FileSystemEntryCallback
Methods from Deref<Target = Object>§
Sourcepub fn constructor(&self) -> Function
pub fn constructor(&self) -> Function
The constructor property returns a reference to the Object
constructor
function that created the instance object.
Sourcepub fn has_own_property(&self, property: &JsValue) -> bool
pub fn has_own_property(&self, property: &JsValue) -> bool
The hasOwnProperty()
method returns a boolean indicating whether the
object has the specified property as its own property (as opposed to
inheriting it).
Sourcepub fn is_prototype_of(&self, value: &JsValue) -> bool
pub fn is_prototype_of(&self, value: &JsValue) -> bool
The isPrototypeOf()
method checks if an object exists in another
object’s prototype chain.
Sourcepub fn property_is_enumerable(&self, property: &JsValue) -> bool
pub fn property_is_enumerable(&self, property: &JsValue) -> bool
The propertyIsEnumerable()
method returns a Boolean indicating
whether the specified property is enumerable.
Sourcepub fn to_locale_string(&self) -> JsString
pub fn to_locale_string(&self) -> JsString
The toLocaleString()
method returns a string representing the object.
This method is meant to be overridden by derived objects for
locale-specific purposes.
Sourcepub fn to_string(&self) -> JsString
pub fn to_string(&self) -> JsString
The toString()
method returns a string representing the object.
Methods from Deref<Target = JsValue>§
pub const NULL: JsValue = _
pub const UNDEFINED: JsValue = _
pub const TRUE: JsValue = _
pub const FALSE: JsValue = _
Sourcepub fn as_f64(&self) -> Option<f64>
pub fn as_f64(&self) -> Option<f64>
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
.
Sourcepub fn as_string(&self) -> Option<String>
pub fn as_string(&self) -> Option<String>
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.
Sourcepub fn as_bool(&self) -> Option<bool>
pub fn as_bool(&self) -> Option<bool>
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
.
Sourcepub fn is_undefined(&self) -> bool
pub fn is_undefined(&self) -> bool
Tests whether this JS value is undefined
Sourcepub fn is_function(&self) -> bool
pub fn is_function(&self) -> bool
Tests whether the type of this JS value is function
.
Sourcepub fn js_in(&self, obj: &JsValue) -> bool
pub fn js_in(&self, obj: &JsValue) -> bool
Applies the binary in
JS operator on the two JsValue
s.
Sourcepub fn loose_eq(&self, other: &JsValue) -> bool
pub fn loose_eq(&self, other: &JsValue) -> bool
Compare two JsValue
s for equality, using the ==
operator in JS.
Sourcepub fn unsigned_shr(&self, rhs: &JsValue) -> u32
pub fn unsigned_shr(&self, rhs: &JsValue) -> u32
Applies the binary >>>
JS operator on the two JsValue
s.
Sourcepub fn checked_div(&self, rhs: &JsValue) -> JsValue
pub fn checked_div(&self, rhs: &JsValue) -> JsValue
Applies the binary /
JS operator on two JsValue
s, catching and returning any RangeError
thrown.
Sourcepub fn pow(&self, rhs: &JsValue) -> JsValue
pub fn pow(&self, rhs: &JsValue) -> JsValue
Applies the binary **
JS operator on the two JsValue
s.
Sourcepub fn lt(&self, other: &JsValue) -> bool
pub fn lt(&self, other: &JsValue) -> bool
Applies the binary <
JS operator on the two JsValue
s.
Sourcepub fn le(&self, other: &JsValue) -> bool
pub fn le(&self, other: &JsValue) -> bool
Applies the binary <=
JS operator on the two JsValue
s.
Sourcepub fn ge(&self, other: &JsValue) -> bool
pub fn ge(&self, other: &JsValue) -> bool
Applies the binary >=
JS operator on the two JsValue
s.
Sourcepub fn gt(&self, other: &JsValue) -> bool
pub fn gt(&self, other: &JsValue) -> bool
Applies the binary >
JS operator on the two JsValue
s.
Sourcepub fn unchecked_into_f64(&self) -> f64
pub fn unchecked_into_f64(&self) -> f64
Applies the unary +
JS operator on a JsValue
. Can throw.
Trait Implementations§
Source§impl AsRef<FileSystemDirectoryEntry> for FileSystemDirectoryEntry
impl AsRef<FileSystemDirectoryEntry> for FileSystemDirectoryEntry
Source§fn as_ref(&self) -> &FileSystemDirectoryEntry
fn as_ref(&self) -> &FileSystemDirectoryEntry
Source§impl AsRef<FileSystemEntry> for FileSystemDirectoryEntry
impl AsRef<FileSystemEntry> for FileSystemDirectoryEntry
Source§fn as_ref(&self) -> &FileSystemEntry
fn as_ref(&self) -> &FileSystemEntry
Source§impl AsRef<JsValue> for FileSystemDirectoryEntry
impl AsRef<JsValue> for FileSystemDirectoryEntry
Source§impl AsRef<Object> for FileSystemDirectoryEntry
impl AsRef<Object> for FileSystemDirectoryEntry
Source§impl Clone for FileSystemDirectoryEntry
impl Clone for FileSystemDirectoryEntry
Source§fn clone(&self) -> FileSystemDirectoryEntry
fn clone(&self) -> FileSystemDirectoryEntry
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for FileSystemDirectoryEntry
impl Debug for FileSystemDirectoryEntry
Source§impl Deref for FileSystemDirectoryEntry
impl Deref for FileSystemDirectoryEntry
Source§type Target = FileSystemEntry
type Target = FileSystemEntry
Source§fn deref(&self) -> &FileSystemEntry
fn deref(&self) -> &FileSystemEntry
Source§impl From<FileSystemDirectoryEntry> for FileSystemEntry
impl From<FileSystemDirectoryEntry> for FileSystemEntry
Source§fn from(obj: FileSystemDirectoryEntry) -> FileSystemEntry
fn from(obj: FileSystemDirectoryEntry) -> FileSystemEntry
Source§impl From<FileSystemDirectoryEntry> for JsValue
impl From<FileSystemDirectoryEntry> for JsValue
Source§fn from(obj: FileSystemDirectoryEntry) -> JsValue
fn from(obj: FileSystemDirectoryEntry) -> JsValue
Source§impl From<FileSystemDirectoryEntry> for Object
impl From<FileSystemDirectoryEntry> for Object
Source§fn from(obj: FileSystemDirectoryEntry) -> Object
fn from(obj: FileSystemDirectoryEntry) -> Object
Source§impl From<JsValue> for FileSystemDirectoryEntry
impl From<JsValue> for FileSystemDirectoryEntry
Source§fn from(obj: JsValue) -> FileSystemDirectoryEntry
fn from(obj: JsValue) -> FileSystemDirectoryEntry
Source§impl<'a> IntoWasmAbi for &'a FileSystemDirectoryEntry
impl<'a> IntoWasmAbi for &'a FileSystemDirectoryEntry
Source§impl JsCast for FileSystemDirectoryEntry
impl JsCast for FileSystemDirectoryEntry
Source§fn instanceof(val: &JsValue) -> bool
fn instanceof(val: &JsValue) -> bool
instanceof
check to see whether the JsValue
provided is an instance of this type. Read moreSource§fn unchecked_from_js(val: JsValue) -> Self
fn unchecked_from_js(val: JsValue) -> Self
Source§fn unchecked_from_js_ref(val: &JsValue) -> &Self
fn unchecked_from_js_ref(val: &JsValue) -> &Self
Source§fn has_type<T>(&self) -> boolwhere
T: JsCast,
fn has_type<T>(&self) -> boolwhere
T: JsCast,
T
. Read moreSource§fn dyn_into<T>(self) -> Result<T, Self>where
T: JsCast,
fn dyn_into<T>(self) -> Result<T, Self>where
T: JsCast,
T
. Read moreSource§fn dyn_ref<T>(&self) -> Option<&T>where
T: JsCast,
fn dyn_ref<T>(&self) -> Option<&T>where
T: JsCast,
T
. Read moreSource§fn unchecked_into<T>(self) -> Twhere
T: JsCast,
fn unchecked_into<T>(self) -> Twhere
T: JsCast,
Source§fn unchecked_ref<T>(&self) -> &Twhere
T: JsCast,
fn unchecked_ref<T>(&self) -> &Twhere
T: JsCast,
Source§impl LongRefFromWasmAbi for FileSystemDirectoryEntry
impl LongRefFromWasmAbi for FileSystemDirectoryEntry
Source§type Anchor = FileSystemDirectoryEntry
type Anchor = FileSystemDirectoryEntry
RefFromWasmAbi::Anchor
Source§unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor
unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor
RefFromWasmAbi::ref_from_abi
Source§impl<'a> OptionIntoWasmAbi for &'a FileSystemDirectoryEntry
impl<'a> OptionIntoWasmAbi for &'a FileSystemDirectoryEntry
Source§impl PartialEq for FileSystemDirectoryEntry
impl PartialEq for FileSystemDirectoryEntry
Source§impl RefFromWasmAbi for FileSystemDirectoryEntry
impl RefFromWasmAbi for FileSystemDirectoryEntry
Source§type Abi = <JsValue as RefFromWasmAbi>::Abi
type Abi = <JsValue as RefFromWasmAbi>::Abi
Self
are recovered from.Source§type Anchor = ManuallyDrop<FileSystemDirectoryEntry>
type Anchor = ManuallyDrop<FileSystemDirectoryEntry>
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.impl Eq for FileSystemDirectoryEntry
impl StructuralPartialEq for FileSystemDirectoryEntry
Auto Trait Implementations§
impl Freeze for FileSystemDirectoryEntry
impl RefUnwindSafe for FileSystemDirectoryEntry
impl !Send for FileSystemDirectoryEntry
impl !Sync for FileSystemDirectoryEntry
impl Unpin for FileSystemDirectoryEntry
impl UnwindSafe for FileSystemDirectoryEntry
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> ReturnWasmAbi for Twhere
T: IntoWasmAbi,
impl<T> ReturnWasmAbi for Twhere
T: IntoWasmAbi,
Source§type Abi = <T as IntoWasmAbi>::Abi
type Abi = <T as IntoWasmAbi>::Abi
IntoWasmAbi::Abi
Source§fn return_abi(self) -> <T as ReturnWasmAbi>::Abi
fn return_abi(self) -> <T as ReturnWasmAbi>::Abi
IntoWasmAbi::into_abi
, except that it may throw and never
return in the case of Err
.