Value

Enum Value 

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pub enum Value {
    Number(f64),
    Bool(bool),
    Null,
    List(ListPointer),
    String(StringPointer),
    Record(RecordPointer),
    Lambda(LambdaPointer),
    Spread(IterablePointer),
    BuiltIn(BuiltInFunction),
}

Variants§

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Number(f64)

A number is a floating-point value.

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Bool(bool)

A boolean value is either true or false.

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Null

A null value represents the absence of a value.

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List(ListPointer)

A list is a sequence of values.

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String(StringPointer)

A string is a sequence of characters.

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Record(RecordPointer)

A record is a collection of key-value pairs.

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Lambda(LambdaPointer)

A lambda is a function definition.

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Spread(IterablePointer)

A spread value is “spread” into its container when it is used in a list, record, or function call. (internal only)

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BuiltIn(BuiltInFunction)

A built-in function is a function that is implemented in Rust.

Implementations§

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impl Value

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pub fn equals(&self, other: &Value, heap: &Heap) -> Result<bool>

Compare two values for equality by their actual content, not by reference

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pub fn compare(&self, other: &Value, heap: &Heap) -> Result<Option<Ordering>>

Compare two values for ordering

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pub fn get_type(&self) -> ValueType

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pub fn is_number(&self) -> bool

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pub fn is_list(&self) -> bool

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pub fn is_spread(&self) -> bool

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pub fn is_bool(&self) -> bool

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pub fn is_lambda(&self) -> bool

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pub fn is_string(&self) -> bool

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pub fn is_null(&self) -> bool

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pub fn is_built_in(&self) -> bool

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pub fn is_callable(&self) -> bool

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pub fn as_number(&self) -> Result<f64>

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pub fn as_list<'h>(&self, heap: &'h Heap) -> Result<&'h Vec<Value>>

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pub fn as_spread<'h>(&self, heap: &'h Heap) -> Result<&'h HeapValue>

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pub fn as_bool(&self) -> Result<bool>

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pub fn as_lambda<'h>(&self, heap: &'h Heap) -> Result<&'h LambdaDef>

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pub fn as_string<'h>(&self, heap: &'h Heap) -> Result<&'h str>

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pub fn as_null(&self) -> Result<()>

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pub fn as_built_in(&self) -> Result<&str>

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pub fn as_record<'h>( &self, heap: &'h Heap, ) -> Result<&'h IndexMap<String, Value>>

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pub fn as_list_pointer(&self) -> Result<ListPointer>

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pub fn as_string_pointer(&self) -> Result<StringPointer>

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pub fn as_record_pointer(&self) -> Result<RecordPointer>

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pub fn as_lambda_pointer(&self) -> Result<LambdaPointer>

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pub fn as_iterable_pointer(&self) -> Result<IterablePointer>

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pub fn to_serializable_value(&self, heap: &Heap) -> Result<SerializableValue>

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pub fn reify<'h>(&self, heap: &'h Heap) -> Result<ReifiedValue<'h>>

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pub fn stringify_internal(&self, heap: &Heap) -> String

Stringify the value. Returns the same thing as stringify, except for Value::String, which is returned without wrapping quotes. Use this for string concatenation, formatting, etc. Don’t use this for displaying values to the user.

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pub fn stringify_external(&self, heap: &Heap) -> String

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pub fn stringify_for_display(&self, heap: &Heap) -> String

Stringify the value with display formatting (thousand separators, scientific notation). Use this for user-facing output like the format() function.

Trait Implementations§

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impl Clone for Value

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fn clone(&self) -> Value

Returns a duplicate 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 Value

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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 Display for Value

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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 From<PrimitiveValue> for Value

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fn from(val: PrimitiveValue) -> Self

Converts to this type from the input type.
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impl From<ReifiedValue<'_>> for Value

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fn from(value: ReifiedValue<'_>) -> Self

Converts to this type from the input type.
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impl PartialEq for Value

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

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

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

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fn partial_cmp(&self, other: &Value) -> 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

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

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

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

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 Value

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impl StructuralPartialEq for Value

Auto Trait Implementations§

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impl Freeze for Value

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impl RefUnwindSafe for Value

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impl Send for Value

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impl Sync for Value

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impl Unpin for Value

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impl UnwindSafe for Value

Blanket Implementations§

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

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> Fmt for T
where T: Display,

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fn fg<C>(self, color: C) -> Foreground<Self>
where C: Into<Option<Color>>, Self: Display,

Give this value the specified foreground colour.
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fn bg<C>(self, color: C) -> Background<Self>
where C: Into<Option<Color>>, Self: Display,

Give this value the specified background colour.
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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, U> Into<U> for T
where 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> Paint for T
where 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.

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Set foreground color to white using fg():

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Set foreground color to white using white().

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fn primary(&self) -> Painted<&T>

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

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fn fixed(&self, color: u8) -> Painted<&T>

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

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fn rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

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

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fn black(&self) -> Painted<&T>

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

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fn red(&self) -> Painted<&T>

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

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fn green(&self) -> Painted<&T>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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fn bright_magenta(&self) -> Painted<&T>

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

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fn bright_cyan(&self) -> Painted<&T>

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

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fn bright_white(&self) -> Painted<&T>

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

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

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

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fn on_primary(&self) -> Painted<&T>

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

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fn on_fixed(&self, color: u8) -> Painted<&T>

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

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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].

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fn on_black(&self) -> Painted<&T>

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

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fn on_red(&self) -> Painted<&T>

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

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fn on_green(&self) -> Painted<&T>

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

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fn on_yellow(&self) -> Painted<&T>

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

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fn on_blue(&self) -> Painted<&T>

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

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fn on_magenta(&self) -> Painted<&T>

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

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fn on_cyan(&self) -> Painted<&T>

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

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fn on_white(&self) -> Painted<&T>

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

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fn on_bright_black(&self) -> Painted<&T>

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

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fn on_bright_red(&self) -> Painted<&T>

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

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fn on_bright_green(&self) -> Painted<&T>

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

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fn on_bright_yellow(&self) -> Painted<&T>

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

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fn on_bright_blue(&self) -> Painted<&T>

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

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fn on_bright_magenta(&self) -> Painted<&T>

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

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fn on_bright_cyan(&self) -> Painted<&T>

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

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fn on_bright_white(&self) -> Painted<&T>

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

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fn attr(&self, value: Attribute) -> Painted<&T>

Enables the styling Attribute value.

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Make text bold using attr():

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Make text bold using using bold().

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fn bold(&self) -> Painted<&T>

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

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fn dim(&self) -> Painted<&T>

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

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fn italic(&self) -> Painted<&T>

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

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fn underline(&self) -> Painted<&T>

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

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

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

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fn invert(&self) -> Painted<&T>

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

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fn conceal(&self) -> Painted<&T>

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

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fn strike(&self) -> Painted<&T>

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

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fn quirk(&self, value: Quirk) -> Painted<&T>

Enables the yansi Quirk value.

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Enable wrapping using wrap().

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fn mask(&self) -> Painted<&T>

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

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

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fn linger(&self) -> Painted<&T>

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

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fn clear(&self) -> Painted<&T>

👎Deprecated since 1.0.1: renamed to resetting() due to conflicts with Vec::clear(). The clear() method will be removed in a future release.

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Returns self with the quirk() set to [Quirk :: Resetting].

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

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

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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.

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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> ToOwned for T
where 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 T
where T: Display + ?Sized,

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fn to_string(&self) -> String

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