[−][src]Struct gdnative::NativeRef
A reference to a rust native script.
Methods
impl<T> NativeRef<T> where
T: NativeClass,
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impl<T> NativeRef<T> where
T: NativeClass,
pub fn cast<O>(&self) -> Option<O> where | [src] |
Try to cast into a godot object reference.
pub fn new_ref(&self) -> NativeRef<T> | [src] |
Creates a new reference to the same object.
Methods from Deref<Target = RefCell<T>>
pub fn replace(&self, t: T) -> T | 1.24.0 [src] |
Replaces the wrapped value with a new one, returning the old value, without deinitializing either one.
This function corresponds to std::mem::replace
.
Panics
Panics if the value is currently borrowed.
Examples
use std::cell::RefCell; let cell = RefCell::new(5); let old_value = cell.replace(6); assert_eq!(old_value, 5); assert_eq!(cell, RefCell::new(6));
pub fn replace_with<F>(&self, f: F) -> T where | [src] |
refcell_replace_swap
)Replaces the wrapped value with a new one computed from f
, returning
the old value, without deinitializing either one.
This function corresponds to std::mem::replace
.
Panics
Panics if the value is currently borrowed.
Examples
#![feature(refcell_replace_swap)] use std::cell::RefCell; let cell = RefCell::new(5); let old_value = cell.replace_with(|&mut old| old + 1); assert_eq!(old_value, 5); assert_eq!(cell, RefCell::new(6));
pub fn swap(&self, other: &RefCell<T>) | 1.24.0 [src] |
Swaps the wrapped value of self
with the wrapped value of other
,
without deinitializing either one.
This function corresponds to std::mem::swap
.
Panics
Panics if the value in either RefCell
is currently borrowed.
Examples
use std::cell::RefCell; let c = RefCell::new(5); let d = RefCell::new(6); c.swap(&d); assert_eq!(c, RefCell::new(6)); assert_eq!(d, RefCell::new(5));
pub fn borrow(&self) -> Ref<T> | 1.0.0 [src] |
Immutably borrows the wrapped value.
The borrow lasts until the returned Ref
exits scope. Multiple
immutable borrows can be taken out at the same time.
Panics
Panics if the value is currently mutably borrowed. For a non-panicking variant, use
try_borrow
.
Examples
use std::cell::RefCell; let c = RefCell::new(5); let borrowed_five = c.borrow(); let borrowed_five2 = c.borrow();
An example of panic:
use std::cell::RefCell; use std::thread; let result = thread::spawn(move || { let c = RefCell::new(5); let m = c.borrow_mut(); let b = c.borrow(); // this causes a panic }).join(); assert!(result.is_err());
pub fn try_borrow(&self) -> Result<Ref<T>, BorrowError> | 1.13.0 [src] |
Immutably borrows the wrapped value, returning an error if the value is currently mutably borrowed.
The borrow lasts until the returned Ref
exits scope. Multiple immutable borrows can be
taken out at the same time.
This is the non-panicking variant of borrow
.
Examples
use std::cell::RefCell; let c = RefCell::new(5); { let m = c.borrow_mut(); assert!(c.try_borrow().is_err()); } { let m = c.borrow(); assert!(c.try_borrow().is_ok()); }
pub fn borrow_mut(&self) -> RefMut<T> | 1.0.0 [src] |
Mutably borrows the wrapped value.
The borrow lasts until the returned RefMut
or all RefMut
s derived
from it exit scope. The value cannot be borrowed while this borrow is
active.
Panics
Panics if the value is currently borrowed. For a non-panicking variant, use
try_borrow_mut
.
Examples
use std::cell::RefCell; let c = RefCell::new(5); *c.borrow_mut() = 7; assert_eq!(*c.borrow(), 7);
An example of panic:
use std::cell::RefCell; use std::thread; let result = thread::spawn(move || { let c = RefCell::new(5); let m = c.borrow(); let b = c.borrow_mut(); // this causes a panic }).join(); assert!(result.is_err());
pub fn try_borrow_mut(&self) -> Result<RefMut<T>, BorrowMutError> | 1.13.0 [src] |
Mutably borrows the wrapped value, returning an error if the value is currently borrowed.
The borrow lasts until the returned RefMut
or all RefMut
s derived
from it exit scope. The value cannot be borrowed while this borrow is
active.
This is the non-panicking variant of borrow_mut
.
Examples
use std::cell::RefCell; let c = RefCell::new(5); { let m = c.borrow(); assert!(c.try_borrow_mut().is_err()); } assert!(c.try_borrow_mut().is_ok());
pub fn as_ptr(&self) -> *mut T | 1.12.0 [src] |
Returns a raw pointer to the underlying data in this cell.
Examples
use std::cell::RefCell; let c = RefCell::new(5); let ptr = c.as_ptr();
Trait Implementations
impl<T> Deref for NativeRef<T> where
T: NativeClass,
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impl<T> Deref for NativeRef<T> where
T: NativeClass,
type Target = RefCell<T>
The resulting type after dereferencing.
fn deref(&self) -> &<NativeRef<T> as Deref>::Target | [src] |
impl<T> Drop for NativeRef<T> where
T: NativeClass,
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impl<T> Drop for NativeRef<T> where
T: NativeClass,
Auto Trait Implementations
Blanket Implementations
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error> | [src] |
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T | [src] |
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error> | [src] |
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId | [src] |