Struct rocket::error::Empty

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pub struct Empty;
Expand description

An error that occurs when a value was unexpectedly empty.

Trait Implementations§

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impl Clone for Empty

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fn clone(&self) -> Empty

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Empty

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

Formats the value using the given formatter. Read more
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impl Default for Empty

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fn default() -> Empty

Returns the “default value” for a type. Read more
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impl Display for Empty

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

Formats the value using the given formatter. Read more
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impl Error for Empty

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fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type based access to context intended for error reports. Read more
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impl Hash for Empty

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for Empty

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fn cmp(&self, other: &Empty) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PartialEq<Empty> for Empty

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd<Empty> for Empty

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fn partial_cmp(&self, other: &Empty) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for Empty

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impl Eq for Empty

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impl StructuralEq for Empty

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impl StructuralPartialEq for Empty

Auto Trait Implementations§

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impl RefUnwindSafe for Empty

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impl Send for Empty

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impl Sync for Empty

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impl Unpin for Empty

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impl UnwindSafe for Empty

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Q, K> Comparable<K> for Qwhere Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoCollection<T> for T

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fn into_collection<A>(self) -> SmallVec<A>where A: Array<Item = T>,

Converts self into a collection.
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fn mapped<U, F, A>(self, f: F) -> SmallVec<A>where F: FnMut(T) -> U, A: Array<Item = U>,

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impl<T> Paint for Twhere T: ?Sized,

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fn fg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the foreground set to value.

This method should be used rarely. Instead, prefer to use color-specific builder methods like red() and green(), which have the same functionality but are pithier.

Example

Set foreground color to white using fg():

use yansi::{Paint, Color};

painted.fg(Color::White);

Set foreground color to white using white().

use yansi::Paint;

painted.white();
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fn primary(&self) -> Painted<&T>

Returns self with the fg() set to Color::Primary.

Example
println!("{}", value.primary());
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fn fixed(&self, color: u8) -> Painted<&T>

Returns self with the fg() set to Color::Fixed.

Example
println!("{}", value.fixed(color));
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fn rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

Returns self with the fg() set to Color::Rgb.

Example
println!("{}", value.rgb(r, g, b));
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fn black(&self) -> Painted<&T>

Returns self with the fg() set to Color::Black.

Example
println!("{}", value.black());
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fn red(&self) -> Painted<&T>

Returns self with the fg() set to Color::Red.

Example
println!("{}", value.red());
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fn green(&self) -> Painted<&T>

Returns self with the fg() set to Color::Green.

Example
println!("{}", value.green());
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fn yellow(&self) -> Painted<&T>

Returns self with the fg() set to Color::Yellow.

Example
println!("{}", value.yellow());
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fn blue(&self) -> Painted<&T>

Returns self with the fg() set to Color::Blue.

Example
println!("{}", value.blue());
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fn magenta(&self) -> Painted<&T>

Returns self with the fg() set to Color::Magenta.

Example
println!("{}", value.magenta());
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fn cyan(&self) -> Painted<&T>

Returns self with the fg() set to Color::Cyan.

Example
println!("{}", value.cyan());
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fn white(&self) -> Painted<&T>

Returns self with the fg() set to Color::White.

Example
println!("{}", value.white());
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fn bright_black(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightBlack.

Example
println!("{}", value.bright_black());
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fn bright_red(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightRed.

Example
println!("{}", value.bright_red());
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fn bright_green(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightGreen.

Example
println!("{}", value.bright_green());
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fn bright_yellow(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightYellow.

Example
println!("{}", value.bright_yellow());
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fn bright_blue(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightBlue.

Example
println!("{}", value.bright_blue());
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fn bright_magenta(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightMagenta.

Example
println!("{}", value.bright_magenta());
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fn bright_cyan(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightCyan.

Example
println!("{}", value.bright_cyan());
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fn bright_white(&self) -> Painted<&T>

Returns self with the fg() set to Color::BrightWhite.

Example
println!("{}", value.bright_white());
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fn bg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the background set to value.

This method should be used rarely. Instead, prefer to use color-specific builder methods like on_red() and on_green(), which have the same functionality but are pithier.

Example

Set background color to red using fg():

use yansi::{Paint, Color};

painted.bg(Color::Red);

Set background color to red using on_red().

use yansi::Paint;

painted.on_red();
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fn on_primary(&self) -> Painted<&T>

Returns self with the bg() set to Color::Primary.

Example
println!("{}", value.on_primary());
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fn on_fixed(&self, color: u8) -> Painted<&T>

Returns self with the bg() set to Color::Fixed.

Example
println!("{}", value.on_fixed(color));
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fn on_rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

Returns self with the bg() set to Color::Rgb.

Example
println!("{}", value.on_rgb(r, g, b));
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fn on_black(&self) -> Painted<&T>

Returns self with the bg() set to Color::Black.

Example
println!("{}", value.on_black());
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fn on_red(&self) -> Painted<&T>

Returns self with the bg() set to Color::Red.

Example
println!("{}", value.on_red());
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fn on_green(&self) -> Painted<&T>

Returns self with the bg() set to Color::Green.

Example
println!("{}", value.on_green());
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fn on_yellow(&self) -> Painted<&T>

Returns self with the bg() set to Color::Yellow.

Example
println!("{}", value.on_yellow());
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fn on_blue(&self) -> Painted<&T>

Returns self with the bg() set to Color::Blue.

Example
println!("{}", value.on_blue());
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fn on_magenta(&self) -> Painted<&T>

Returns self with the bg() set to Color::Magenta.

Example
println!("{}", value.on_magenta());
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fn on_cyan(&self) -> Painted<&T>

Returns self with the bg() set to Color::Cyan.

Example
println!("{}", value.on_cyan());
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fn on_white(&self) -> Painted<&T>

Returns self with the bg() set to Color::White.

Example
println!("{}", value.on_white());
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fn on_bright_black(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightBlack.

Example
println!("{}", value.on_bright_black());
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fn on_bright_red(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightRed.

Example
println!("{}", value.on_bright_red());
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fn on_bright_green(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightGreen.

Example
println!("{}", value.on_bright_green());
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fn on_bright_yellow(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightYellow.

Example
println!("{}", value.on_bright_yellow());
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fn on_bright_blue(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightBlue.

Example
println!("{}", value.on_bright_blue());
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fn on_bright_magenta(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightMagenta.

Example
println!("{}", value.on_bright_magenta());
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fn on_bright_cyan(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightCyan.

Example
println!("{}", value.on_bright_cyan());
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fn on_bright_white(&self) -> Painted<&T>

Returns self with the bg() set to Color::BrightWhite.

Example
println!("{}", value.on_bright_white());
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fn attr(&self, value: Attribute) -> Painted<&T>

Enables the styling Attribute value.

This method should be used rarely. Instead, prefer to use attribute-specific builder methods like bold() and underline(), which have the same functionality but are pithier.

Example

Make text bold using attr():

use yansi::{Paint, Attribute};

painted.attr(Attribute::Bold);

Make text bold using using bold().

use yansi::Paint;

painted.bold();
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fn bold(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Bold.

Example
println!("{}", value.bold());
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fn dim(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Dim.

Example
println!("{}", value.dim());
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fn italic(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Italic.

Example
println!("{}", value.italic());
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fn underline(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Underline.

Example
println!("{}", value.underline());

Returns self with the attr() set to Attribute::Blink.

Example
println!("{}", value.blink());

Returns self with the attr() set to Attribute::RapidBlink.

Example
println!("{}", value.rapid_blink());
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fn invert(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Invert.

Example
println!("{}", value.invert());
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fn conceal(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Conceal.

Example
println!("{}", value.conceal());
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fn strike(&self) -> Painted<&T>

Returns self with the attr() set to Attribute::Strike.

Example
println!("{}", value.strike());
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fn quirk(&self, value: Quirk) -> Painted<&T>

Enables the yansi Quirk value.

This method should be used rarely. Instead, prefer to use quirk-specific builder methods like mask() and wrap(), which have the same functionality but are pithier.

Example

Enable wrapping using .quirk():

use yansi::{Paint, Quirk};

painted.quirk(Quirk::Wrap);

Enable wrapping using wrap().

use yansi::Paint;

painted.wrap();
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fn mask(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Mask.

Example
println!("{}", value.mask());
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fn wrap(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Wrap.

Example
println!("{}", value.wrap());
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fn linger(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Linger.

Example
println!("{}", value.linger());
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fn clear(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Clear.

Example
println!("{}", value.clear());
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fn bright(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::Bright.

Example
println!("{}", value.bright());
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fn on_bright(&self) -> Painted<&T>

Returns self with the quirk() set to Quirk::OnBright.

Example
println!("{}", value.on_bright());
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fn whenever(&self, value: Condition) -> Painted<&T>

Conditionally enable styling based on whether the Condition value applies. Replaces any previous condition.

See the crate level docs for more details.

Example

Enable styling painted only when both stdout and stderr are TTYs:

use yansi::{Paint, Condition};

painted.red().on_yellow().whenever(Condition::STDOUTERR_ARE_TTY);
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fn new(self) -> Painted<Self>where Self: Sized,

Create a new Painted with a default Style. Read more
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fn paint<S>(&self, style: S) -> Painted<&Self>where S: Into<Style>,

Apply a style wholesale to self. Any previous style is replaced. Read more
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impl<T> Same<T> for T

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type Output = T

Should always be Self
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more