pub struct Global;🔬This is a nightly-only experimental API. (
allocator_api)Expand description
The global memory allocator.
This type implements the Allocator trait by forwarding calls
to the allocator registered with the #[global_allocator] attribute
if there is one, or the std crate’s default.
Note: while this type is unstable, the functionality it provides can be
accessed through the free functions in alloc.
Trait Implementations§
Source§impl Allocator for Global
impl Allocator for Global
Source§fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
🔬This is a nightly-only experimental API. (
allocator_api)Attempts to allocate a block of memory. Read more
Source§fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError>
🔬This is a nightly-only experimental API. (
allocator_api)Behaves like
allocate, but also ensures that the returned memory is zero-initialized. Read moreSource§unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)
unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout)
🔬This is a nightly-only experimental API. (
allocator_api)Deallocates the memory referenced by
ptr. Read moreSource§unsafe fn grow(
&self,
ptr: NonNull<u8>,
old_layout: Layout,
new_layout: Layout,
) -> Result<NonNull<[u8]>, AllocError>
unsafe fn grow( &self, ptr: NonNull<u8>, old_layout: Layout, new_layout: Layout, ) -> Result<NonNull<[u8]>, AllocError>
🔬This is a nightly-only experimental API. (
allocator_api)Attempts to extend the memory block. Read more
impl AllocatorClone for Global
impl Copy for Global
impl StaticAllocator for Global
Auto Trait Implementations§
impl Freeze for Global
impl RefUnwindSafe for Global
impl Send for Global
impl Sync for Global
impl Unpin for Global
impl UnsafeUnpin for Global
impl UnwindSafe for Global
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
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
Source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
Source§fn in_current_span(self) -> Instrumented<Self> ⓘ
fn in_current_span(self) -> Instrumented<Self> ⓘ
Source§impl<D> OwoColorize for D
impl<D> OwoColorize for D
Source§fn fg<C>(&self) -> FgColorDisplay<'_, C, Self>where
C: Color,
fn fg<C>(&self) -> FgColorDisplay<'_, C, Self>where
C: Color,
Set the foreground color generically Read more
Source§fn bg<C>(&self) -> BgColorDisplay<'_, C, Self>where
C: Color,
fn bg<C>(&self) -> BgColorDisplay<'_, C, Self>where
C: Color,
Set the background color generically. Read more
Source§fn black(&self) -> FgColorDisplay<'_, Black, Self>
fn black(&self) -> FgColorDisplay<'_, Black, Self>
Change the foreground color to black
Source§fn on_black(&self) -> BgColorDisplay<'_, Black, Self>
fn on_black(&self) -> BgColorDisplay<'_, Black, Self>
Change the background color to black
Source§fn red(&self) -> FgColorDisplay<'_, Red, Self>
fn red(&self) -> FgColorDisplay<'_, Red, Self>
Change the foreground color to red
Source§fn on_red(&self) -> BgColorDisplay<'_, Red, Self>
fn on_red(&self) -> BgColorDisplay<'_, Red, Self>
Change the background color to red
Source§fn green(&self) -> FgColorDisplay<'_, Green, Self>
fn green(&self) -> FgColorDisplay<'_, Green, Self>
Change the foreground color to green
Source§fn on_green(&self) -> BgColorDisplay<'_, Green, Self>
fn on_green(&self) -> BgColorDisplay<'_, Green, Self>
Change the background color to green
Source§fn yellow(&self) -> FgColorDisplay<'_, Yellow, Self>
fn yellow(&self) -> FgColorDisplay<'_, Yellow, Self>
Change the foreground color to yellow
Source§fn on_yellow(&self) -> BgColorDisplay<'_, Yellow, Self>
fn on_yellow(&self) -> BgColorDisplay<'_, Yellow, Self>
Change the background color to yellow
Source§fn blue(&self) -> FgColorDisplay<'_, Blue, Self>
fn blue(&self) -> FgColorDisplay<'_, Blue, Self>
Change the foreground color to blue
Source§fn on_blue(&self) -> BgColorDisplay<'_, Blue, Self>
fn on_blue(&self) -> BgColorDisplay<'_, Blue, Self>
Change the background color to blue
Source§fn magenta(&self) -> FgColorDisplay<'_, Magenta, Self>
fn magenta(&self) -> FgColorDisplay<'_, Magenta, Self>
Change the foreground color to magenta
Source§fn on_magenta(&self) -> BgColorDisplay<'_, Magenta, Self>
fn on_magenta(&self) -> BgColorDisplay<'_, Magenta, Self>
Change the background color to magenta
Source§fn purple(&self) -> FgColorDisplay<'_, Magenta, Self>
fn purple(&self) -> FgColorDisplay<'_, Magenta, Self>
Change the foreground color to purple
Source§fn on_purple(&self) -> BgColorDisplay<'_, Magenta, Self>
fn on_purple(&self) -> BgColorDisplay<'_, Magenta, Self>
Change the background color to purple
Source§fn cyan(&self) -> FgColorDisplay<'_, Cyan, Self>
fn cyan(&self) -> FgColorDisplay<'_, Cyan, Self>
Change the foreground color to cyan
Source§fn on_cyan(&self) -> BgColorDisplay<'_, Cyan, Self>
fn on_cyan(&self) -> BgColorDisplay<'_, Cyan, Self>
Change the background color to cyan
Source§fn white(&self) -> FgColorDisplay<'_, White, Self>
fn white(&self) -> FgColorDisplay<'_, White, Self>
Change the foreground color to white
Source§fn on_white(&self) -> BgColorDisplay<'_, White, Self>
fn on_white(&self) -> BgColorDisplay<'_, White, Self>
Change the background color to white
Source§fn default_color(&self) -> FgColorDisplay<'_, Default, Self>
fn default_color(&self) -> FgColorDisplay<'_, Default, Self>
Change the foreground color to the terminal default
Source§fn on_default_color(&self) -> BgColorDisplay<'_, Default, Self>
fn on_default_color(&self) -> BgColorDisplay<'_, Default, Self>
Change the background color to the terminal default
Source§fn bright_black(&self) -> FgColorDisplay<'_, BrightBlack, Self>
fn bright_black(&self) -> FgColorDisplay<'_, BrightBlack, Self>
Change the foreground color to bright black
Source§fn on_bright_black(&self) -> BgColorDisplay<'_, BrightBlack, Self>
fn on_bright_black(&self) -> BgColorDisplay<'_, BrightBlack, Self>
Change the background color to bright black
Source§fn bright_red(&self) -> FgColorDisplay<'_, BrightRed, Self>
fn bright_red(&self) -> FgColorDisplay<'_, BrightRed, Self>
Change the foreground color to bright red
Source§fn on_bright_red(&self) -> BgColorDisplay<'_, BrightRed, Self>
fn on_bright_red(&self) -> BgColorDisplay<'_, BrightRed, Self>
Change the background color to bright red
Source§fn bright_green(&self) -> FgColorDisplay<'_, BrightGreen, Self>
fn bright_green(&self) -> FgColorDisplay<'_, BrightGreen, Self>
Change the foreground color to bright green
Source§fn on_bright_green(&self) -> BgColorDisplay<'_, BrightGreen, Self>
fn on_bright_green(&self) -> BgColorDisplay<'_, BrightGreen, Self>
Change the background color to bright green
Source§fn bright_yellow(&self) -> FgColorDisplay<'_, BrightYellow, Self>
fn bright_yellow(&self) -> FgColorDisplay<'_, BrightYellow, Self>
Change the foreground color to bright yellow
Source§fn on_bright_yellow(&self) -> BgColorDisplay<'_, BrightYellow, Self>
fn on_bright_yellow(&self) -> BgColorDisplay<'_, BrightYellow, Self>
Change the background color to bright yellow
Source§fn bright_blue(&self) -> FgColorDisplay<'_, BrightBlue, Self>
fn bright_blue(&self) -> FgColorDisplay<'_, BrightBlue, Self>
Change the foreground color to bright blue
Source§fn on_bright_blue(&self) -> BgColorDisplay<'_, BrightBlue, Self>
fn on_bright_blue(&self) -> BgColorDisplay<'_, BrightBlue, Self>
Change the background color to bright blue
Source§fn bright_magenta(&self) -> FgColorDisplay<'_, BrightMagenta, Self>
fn bright_magenta(&self) -> FgColorDisplay<'_, BrightMagenta, Self>
Change the foreground color to bright magenta
Source§fn on_bright_magenta(&self) -> BgColorDisplay<'_, BrightMagenta, Self>
fn on_bright_magenta(&self) -> BgColorDisplay<'_, BrightMagenta, Self>
Change the background color to bright magenta
Source§fn bright_purple(&self) -> FgColorDisplay<'_, BrightMagenta, Self>
fn bright_purple(&self) -> FgColorDisplay<'_, BrightMagenta, Self>
Change the foreground color to bright purple
Source§fn on_bright_purple(&self) -> BgColorDisplay<'_, BrightMagenta, Self>
fn on_bright_purple(&self) -> BgColorDisplay<'_, BrightMagenta, Self>
Change the background color to bright purple
Source§fn bright_cyan(&self) -> FgColorDisplay<'_, BrightCyan, Self>
fn bright_cyan(&self) -> FgColorDisplay<'_, BrightCyan, Self>
Change the foreground color to bright cyan
Source§fn on_bright_cyan(&self) -> BgColorDisplay<'_, BrightCyan, Self>
fn on_bright_cyan(&self) -> BgColorDisplay<'_, BrightCyan, Self>
Change the background color to bright cyan
Source§fn bright_white(&self) -> FgColorDisplay<'_, BrightWhite, Self>
fn bright_white(&self) -> FgColorDisplay<'_, BrightWhite, Self>
Change the foreground color to bright white
Source§fn on_bright_white(&self) -> BgColorDisplay<'_, BrightWhite, Self>
fn on_bright_white(&self) -> BgColorDisplay<'_, BrightWhite, Self>
Change the background color to bright white
Source§fn bold(&self) -> BoldDisplay<'_, Self>
fn bold(&self) -> BoldDisplay<'_, Self>
Make the text bold
Source§fn dimmed(&self) -> DimDisplay<'_, Self>
fn dimmed(&self) -> DimDisplay<'_, Self>
Make the text dim
Source§fn italic(&self) -> ItalicDisplay<'_, Self>
fn italic(&self) -> ItalicDisplay<'_, Self>
Make the text italicized
Source§fn underline(&self) -> UnderlineDisplay<'_, Self>
fn underline(&self) -> UnderlineDisplay<'_, Self>
Make the text underlined
Source§fn blink(&self) -> BlinkDisplay<'_, Self>
fn blink(&self) -> BlinkDisplay<'_, Self>
Make the text blink
Source§fn blink_fast(&self) -> BlinkFastDisplay<'_, Self>
fn blink_fast(&self) -> BlinkFastDisplay<'_, Self>
Make the text blink (but fast!)
Source§fn reversed(&self) -> ReversedDisplay<'_, Self>
fn reversed(&self) -> ReversedDisplay<'_, Self>
Swap the foreground and background colors
Hide the text
Source§fn strikethrough(&self) -> StrikeThroughDisplay<'_, Self>
fn strikethrough(&self) -> StrikeThroughDisplay<'_, Self>
Cross out the text
Source§fn color<Color>(&self, color: Color) -> FgDynColorDisplay<'_, Color, Self>where
Color: DynColor,
fn color<Color>(&self, color: Color) -> FgDynColorDisplay<'_, Color, Self>where
Color: DynColor,
Set the foreground color at runtime. Only use if you do not know which color will be used at
compile-time. If the color is constant, use either
OwoColorize::fg or
a color-specific method, such as OwoColorize::green, Read moreSource§fn on_color<Color>(&self, color: Color) -> BgDynColorDisplay<'_, Color, Self>where
Color: DynColor,
fn on_color<Color>(&self, color: Color) -> BgDynColorDisplay<'_, Color, Self>where
Color: DynColor,
Set the background color at runtime. Only use if you do not know what color to use at
compile-time. If the color is constant, use either
OwoColorize::bg or
a color-specific method, such as OwoColorize::on_yellow, Read moreSource§fn fg_rgb<const R: u8, const G: u8, const B: u8>(
&self,
) -> FgColorDisplay<'_, CustomColor<R, G, B>, Self>
fn fg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> FgColorDisplay<'_, CustomColor<R, G, B>, Self>
Set the foreground color to a specific RGB value.
Source§fn bg_rgb<const R: u8, const G: u8, const B: u8>(
&self,
) -> BgColorDisplay<'_, CustomColor<R, G, B>, Self>
fn bg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> BgColorDisplay<'_, CustomColor<R, G, B>, Self>
Set the background color to a specific RGB value.
Source§fn truecolor(&self, r: u8, g: u8, b: u8) -> FgDynColorDisplay<'_, Rgb, Self>
fn truecolor(&self, r: u8, g: u8, b: u8) -> FgDynColorDisplay<'_, Rgb, Self>
Sets the foreground color to an RGB value.
Source§fn on_truecolor(&self, r: u8, g: u8, b: u8) -> BgDynColorDisplay<'_, Rgb, Self>
fn on_truecolor(&self, r: u8, g: u8, b: u8) -> BgDynColorDisplay<'_, Rgb, Self>
Sets the background color to an RGB value.