Struct FeatureFlag
pub struct FeatureFlag(/* private fields */);Available on crate feature
__ecma and (crate features __ecma_transforms or __testing_transform) only.Implementations§
§impl FeatureFlag
impl FeatureFlag
pub const TemplateLiterals: FeatureFlag = _
pub const TemplateLiterals: FeatureFlag = _
transform-template-literals
pub const Literals: FeatureFlag = _
pub const Literals: FeatureFlag = _
transform-literals
pub const FunctionName: FeatureFlag = _
pub const FunctionName: FeatureFlag = _
transform-function-name
pub const ArrowFunctions: FeatureFlag = _
pub const ArrowFunctions: FeatureFlag = _
transform-arrow-functions
pub const BlockScopedFunctions: FeatureFlag = _
pub const BlockScopedFunctions: FeatureFlag = _
transform-block-scoped-functions
pub const Classes: FeatureFlag = _
pub const Classes: FeatureFlag = _
transform-classes
pub const ObjectSuper: FeatureFlag = _
pub const ObjectSuper: FeatureFlag = _
transform-object-super
pub const ShorthandProperties: FeatureFlag = _
pub const ShorthandProperties: FeatureFlag = _
transform-shorthand-properties
pub const DuplicateKeys: FeatureFlag = _
pub const DuplicateKeys: FeatureFlag = _
transform-duplicate-keys
pub const ComputedProperties: FeatureFlag = _
pub const ComputedProperties: FeatureFlag = _
transform-computed-properties
pub const ForOf: FeatureFlag = _
pub const ForOf: FeatureFlag = _
transform-for-of
pub const StickyRegex: FeatureFlag = _
pub const StickyRegex: FeatureFlag = _
transform-sticky-regex
pub const DotAllRegex: FeatureFlag = _
pub const DotAllRegex: FeatureFlag = _
transform-dotall-regex
pub const UnicodeRegex: FeatureFlag = _
pub const UnicodeRegex: FeatureFlag = _
transform-unicode-regex
pub const Spread: FeatureFlag = _
pub const Spread: FeatureFlag = _
transform-spread
pub const Parameters: FeatureFlag = _
pub const Parameters: FeatureFlag = _
transform-parameters
pub const Destructuring: FeatureFlag = _
pub const Destructuring: FeatureFlag = _
transform-destructuring
pub const BlockScoping: FeatureFlag = _
pub const BlockScoping: FeatureFlag = _
transform-block-scoping
pub const TypeOfSymbol: FeatureFlag = _
pub const TypeOfSymbol: FeatureFlag = _
transform-typeof-symbol
pub const NewTarget: FeatureFlag = _
pub const NewTarget: FeatureFlag = _
transform-new-target
pub const Regenerator: FeatureFlag = _
pub const Regenerator: FeatureFlag = _
transform-regenerator
pub const ExponentiationOperator: FeatureFlag = _
pub const ExponentiationOperator: FeatureFlag = _
transform-exponentiation-operator
pub const AsyncToGenerator: FeatureFlag = _
pub const AsyncToGenerator: FeatureFlag = _
transform-async-to-generator
pub const AsyncGeneratorFunctions: FeatureFlag = _
pub const AsyncGeneratorFunctions: FeatureFlag = _
proposal-async-generator-functions
pub const ObjectRestSpread: FeatureFlag = _
pub const ObjectRestSpread: FeatureFlag = _
proposal-object-rest-spread
pub const UnicodePropertyRegex: FeatureFlag = _
pub const UnicodePropertyRegex: FeatureFlag = _
proposal-unicode-property-regex
pub const JsonStrings: FeatureFlag = _
pub const JsonStrings: FeatureFlag = _
proposal-json-strings
pub const OptionalCatchBinding: FeatureFlag = _
pub const OptionalCatchBinding: FeatureFlag = _
proposal-optional-catch-binding
pub const NamedCapturingGroupsRegex: FeatureFlag = _
pub const NamedCapturingGroupsRegex: FeatureFlag = _
transform-named-capturing-groups-regex
pub const MemberExpressionLiterals: FeatureFlag = _
pub const MemberExpressionLiterals: FeatureFlag = _
transform-member-expression-literals
pub const PropertyLiterals: FeatureFlag = _
pub const PropertyLiterals: FeatureFlag = _
transform-property-literals
pub const ReservedWords: FeatureFlag = _
pub const ReservedWords: FeatureFlag = _
transform-reserved-words
pub const ExportNamespaceFrom: FeatureFlag = _
pub const ExportNamespaceFrom: FeatureFlag = _
proposal-export-namespace-from
pub const NullishCoalescing: FeatureFlag = _
pub const NullishCoalescing: FeatureFlag = _
proposal-nullish-coalescing-operator
pub const LogicalAssignmentOperators: FeatureFlag = _
pub const LogicalAssignmentOperators: FeatureFlag = _
proposal-logical-assignment-operators
pub const OptionalChaining: FeatureFlag = _
pub const OptionalChaining: FeatureFlag = _
proposal-optional-chaining
pub const ClassProperties: FeatureFlag = _
pub const ClassProperties: FeatureFlag = _
proposal-class-properties
pub const NumericSeparator: FeatureFlag = _
pub const NumericSeparator: FeatureFlag = _
proposal-numeric-separator
pub const PrivateMethods: FeatureFlag = _
pub const PrivateMethods: FeatureFlag = _
proposal-private-methods
pub const ClassStaticBlock: FeatureFlag = _
pub const ClassStaticBlock: FeatureFlag = _
proposal-class-static-block
pub const PrivatePropertyInObject: FeatureFlag = _
pub const PrivatePropertyInObject: FeatureFlag = _
proposal-private-property-in-object
pub const UnicodeEscapes: FeatureFlag = _
pub const UnicodeEscapes: FeatureFlag = _
transform-unicode-escapes
pub const BugfixAsyncArrowsInClass: FeatureFlag = _
pub const BugfixAsyncArrowsInClass: FeatureFlag = _
bugfix/transform-async-arrows-in-class
pub const BugfixEdgeDefaultParam: FeatureFlag = _
pub const BugfixEdgeDefaultParam: FeatureFlag = _
bugfix/transform-edge-default-parameters
pub const BugfixTaggedTemplateCaching: FeatureFlag = _
pub const BugfixTaggedTemplateCaching: FeatureFlag = _
bugfix/transform-tagged-template-caching
pub const BugfixSafariIdDestructuringCollisionInFunctionExpression: FeatureFlag = _
pub const BugfixSafariIdDestructuringCollisionInFunctionExpression: FeatureFlag = _
bugfix/transform-safari-id-destructuring-collision-in-function-expression
pub const BugfixTransformEdgeFunctionName: FeatureFlag = _
pub const BugfixTransformEdgeFunctionName: FeatureFlag = _
bugfix/transform-edge-function-name
pub const BugfixTransformSafariBlockShadowing: FeatureFlag = _
pub const BugfixTransformSafariBlockShadowing: FeatureFlag = _
bugfix/transform-safari-block-shadowing
pub const BugfixTransformSafariForShadowing: FeatureFlag = _
pub const BugfixTransformSafariForShadowing: FeatureFlag = _
bugfix/transform-safari-for-shadowing
pub const BugfixTransformV8SpreadParametersInOptionalChaining: FeatureFlag = _
pub const BugfixTransformV8SpreadParametersInOptionalChaining: FeatureFlag = _
bugfix/transform-v8-spread-parameters-in-optional-chaining
§impl FeatureFlag
impl FeatureFlag
pub const fn empty() -> FeatureFlag
pub const fn empty() -> FeatureFlag
Get a flags value with all bits unset.
pub const fn all() -> FeatureFlag
pub const fn all() -> FeatureFlag
Get a flags value with all known bits set.
pub const fn bits(&self) -> u64
pub const fn bits(&self) -> u64
Get the underlying bits value.
The returned value is exactly the bits set in this flags value.
pub const fn from_bits(bits: u64) -> Option<FeatureFlag>
pub const fn from_bits(bits: u64) -> Option<FeatureFlag>
Convert from a bits value.
This method will return None if any unknown bits are set.
pub const fn from_bits_truncate(bits: u64) -> FeatureFlag
pub const fn from_bits_truncate(bits: u64) -> FeatureFlag
Convert from a bits value, unsetting any unknown bits.
pub const fn from_bits_retain(bits: u64) -> FeatureFlag
pub const fn from_bits_retain(bits: u64) -> FeatureFlag
Convert from a bits value exactly.
pub fn from_name(name: &str) -> Option<FeatureFlag>
pub fn from_name(name: &str) -> Option<FeatureFlag>
Get a flags value with the bits of a flag with the given name set.
This method will return None if name is empty or doesn’t
correspond to any named flag.
pub const fn intersects(&self, other: FeatureFlag) -> bool
pub const fn intersects(&self, other: FeatureFlag) -> bool
Whether any set bits in a source flags value are also set in a target flags value.
pub const fn contains(&self, other: FeatureFlag) -> bool
pub const fn contains(&self, other: FeatureFlag) -> bool
Whether all set bits in a source flags value are also set in a target flags value.
pub fn insert(&mut self, other: FeatureFlag)
pub fn insert(&mut self, other: FeatureFlag)
The bitwise or (|) of the bits in two flags values.
pub fn remove(&mut self, other: FeatureFlag)
pub fn remove(&mut self, other: FeatureFlag)
The intersection of a source flags value with the complement of a target flags value (&!).
This method is not equivalent to self & !other when other has unknown bits set.
remove won’t truncate other, but the ! operator will.
pub fn toggle(&mut self, other: FeatureFlag)
pub fn toggle(&mut self, other: FeatureFlag)
The bitwise exclusive-or (^) of the bits in two flags values.
pub fn set(&mut self, other: FeatureFlag, value: bool)
pub fn set(&mut self, other: FeatureFlag, value: bool)
Call insert when value is true or remove when value is false.
pub const fn intersection(self, other: FeatureFlag) -> FeatureFlag
pub const fn intersection(self, other: FeatureFlag) -> FeatureFlag
The bitwise and (&) of the bits in two flags values.
pub const fn union(self, other: FeatureFlag) -> FeatureFlag
pub const fn union(self, other: FeatureFlag) -> FeatureFlag
The bitwise or (|) of the bits in two flags values.
pub const fn difference(self, other: FeatureFlag) -> FeatureFlag
pub const fn difference(self, other: FeatureFlag) -> FeatureFlag
The intersection of a source flags value with the complement of a target flags value (&!).
This method is not equivalent to self & !other when other has unknown bits set.
difference won’t truncate other, but the ! operator will.
pub const fn symmetric_difference(self, other: FeatureFlag) -> FeatureFlag
pub const fn symmetric_difference(self, other: FeatureFlag) -> FeatureFlag
The bitwise exclusive-or (^) of the bits in two flags values.
pub const fn complement(self) -> FeatureFlag
pub const fn complement(self) -> FeatureFlag
The bitwise negation (!) of the bits in a flags value, truncating the result.
§impl FeatureFlag
impl FeatureFlag
pub const fn iter(&self) -> Iter<FeatureFlag>
pub const fn iter(&self) -> Iter<FeatureFlag>
Yield a set of contained flags values.
Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.
pub const fn iter_names(&self) -> IterNames<FeatureFlag>
pub const fn iter_names(&self) -> IterNames<FeatureFlag>
Yield a set of contained named flags values.
This method is like iter, except only yields bits in contained named flags.
Any unknown bits, or bits not corresponding to a contained flag will not be yielded.
Trait Implementations§
§impl Binary for FeatureFlag
impl Binary for FeatureFlag
§impl BitAnd for FeatureFlag
impl BitAnd for FeatureFlag
§fn bitand(self, other: FeatureFlag) -> FeatureFlag
fn bitand(self, other: FeatureFlag) -> FeatureFlag
The bitwise and (&) of the bits in two flags values.
§type Output = FeatureFlag
type Output = FeatureFlag
The resulting type after applying the
& operator.§impl BitAndAssign for FeatureFlag
impl BitAndAssign for FeatureFlag
§fn bitand_assign(&mut self, other: FeatureFlag)
fn bitand_assign(&mut self, other: FeatureFlag)
The bitwise and (&) of the bits in two flags values.
§impl BitOr for FeatureFlag
impl BitOr for FeatureFlag
§fn bitor(self, other: FeatureFlag) -> FeatureFlag
fn bitor(self, other: FeatureFlag) -> FeatureFlag
The bitwise or (|) of the bits in two flags values.
§type Output = FeatureFlag
type Output = FeatureFlag
The resulting type after applying the
| operator.§impl BitOrAssign for FeatureFlag
impl BitOrAssign for FeatureFlag
§fn bitor_assign(&mut self, other: FeatureFlag)
fn bitor_assign(&mut self, other: FeatureFlag)
The bitwise or (|) of the bits in two flags values.
§impl BitXor for FeatureFlag
impl BitXor for FeatureFlag
§fn bitxor(self, other: FeatureFlag) -> FeatureFlag
fn bitxor(self, other: FeatureFlag) -> FeatureFlag
The bitwise exclusive-or (^) of the bits in two flags values.
§type Output = FeatureFlag
type Output = FeatureFlag
The resulting type after applying the
^ operator.§impl BitXorAssign for FeatureFlag
impl BitXorAssign for FeatureFlag
§fn bitxor_assign(&mut self, other: FeatureFlag)
fn bitxor_assign(&mut self, other: FeatureFlag)
The bitwise exclusive-or (^) of the bits in two flags values.
§impl Clone for FeatureFlag
impl Clone for FeatureFlag
§fn clone(&self) -> FeatureFlag
fn clone(&self) -> FeatureFlag
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read more§impl Default for FeatureFlag
impl Default for FeatureFlag
§fn default() -> FeatureFlag
fn default() -> FeatureFlag
Returns the “default value” for a type. Read more
§impl Extend<FeatureFlag> for FeatureFlag
impl Extend<FeatureFlag> for FeatureFlag
§fn extend<T>(&mut self, iterator: T)where
T: IntoIterator<Item = FeatureFlag>,
fn extend<T>(&mut self, iterator: T)where
T: IntoIterator<Item = FeatureFlag>,
The bitwise or (|) of the bits in each flags value.
source§fn extend_one(&mut self, item: A)
fn extend_one(&mut self, item: A)
🔬This is a nightly-only experimental API. (
extend_one)Extends a collection with exactly one element.
source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
🔬This is a nightly-only experimental API. (
extend_one)Reserves capacity in a collection for the given number of additional elements. Read more
§impl Flags for FeatureFlag
impl Flags for FeatureFlag
§const FLAGS: &'static [Flag<FeatureFlag>] = _
const FLAGS: &'static [Flag<FeatureFlag>] = _
The set of defined flags.
§fn from_bits_retain(bits: u64) -> FeatureFlag
fn from_bits_retain(bits: u64) -> FeatureFlag
Convert from a bits value exactly.
§fn from_bits_truncate(bits: Self::Bits) -> Self
fn from_bits_truncate(bits: Self::Bits) -> Self
Convert from a bits value, unsetting any unknown bits.
§fn from_name(name: &str) -> Option<Self>
fn from_name(name: &str) -> Option<Self>
Get a flags value with the bits of a flag with the given name set. Read more
§fn iter_names(&self) -> IterNames<Self>
fn iter_names(&self) -> IterNames<Self>
Yield a set of contained named flags values. Read more
§fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
Whether any set bits in a source flags value are also set in a target flags value.
§fn contains(&self, other: Self) -> boolwhere
Self: Sized,
fn contains(&self, other: Self) -> boolwhere
Self: Sized,
Whether all set bits in a source flags value are also set in a target flags value.
§fn insert(&mut self, other: Self)where
Self: Sized,
fn insert(&mut self, other: Self)where
Self: Sized,
The bitwise or (
|) of the bits in two flags values.§fn remove(&mut self, other: Self)where
Self: Sized,
fn remove(&mut self, other: Self)where
Self: Sized,
The intersection of a source flags value with the complement of a target flags value (
&!). Read more§fn toggle(&mut self, other: Self)where
Self: Sized,
fn toggle(&mut self, other: Self)where
Self: Sized,
The bitwise exclusive-or (
^) of the bits in two flags values.§fn set(&mut self, other: Self, value: bool)where
Self: Sized,
fn set(&mut self, other: Self, value: bool)where
Self: Sized,
Call [
Flags::insert] when value is true or [Flags::remove] when value is false.§fn intersection(self, other: Self) -> Self
fn intersection(self, other: Self) -> Self
The bitwise and (
&) of the bits in two flags values.§fn difference(self, other: Self) -> Self
fn difference(self, other: Self) -> Self
The intersection of a source flags value with the complement of a target flags value (
&!). Read more§fn symmetric_difference(self, other: Self) -> Self
fn symmetric_difference(self, other: Self) -> Self
The bitwise exclusive-or (
^) of the bits in two flags values.§fn complement(self) -> Self
fn complement(self) -> Self
The bitwise negation (
!) of the bits in a flags value, truncating the result.§impl FromIterator<FeatureFlag> for FeatureFlag
impl FromIterator<FeatureFlag> for FeatureFlag
§fn from_iter<T>(iterator: T) -> FeatureFlagwhere
T: IntoIterator<Item = FeatureFlag>,
fn from_iter<T>(iterator: T) -> FeatureFlagwhere
T: IntoIterator<Item = FeatureFlag>,
The bitwise or (|) of the bits in each flags value.
§impl IntoIterator for FeatureFlag
impl IntoIterator for FeatureFlag
§type Item = FeatureFlag
type Item = FeatureFlag
The type of the elements being iterated over.
§type IntoIter = Iter<FeatureFlag>
type IntoIter = Iter<FeatureFlag>
Which kind of iterator are we turning this into?
§fn into_iter(self) -> <FeatureFlag as IntoIterator>::IntoIter
fn into_iter(self) -> <FeatureFlag as IntoIterator>::IntoIter
Creates an iterator from a value. Read more
§impl LowerHex for FeatureFlag
impl LowerHex for FeatureFlag
§impl Not for FeatureFlag
impl Not for FeatureFlag
§fn not(self) -> FeatureFlag
fn not(self) -> FeatureFlag
The bitwise negation (!) of the bits in a flags value, truncating the result.
§type Output = FeatureFlag
type Output = FeatureFlag
The resulting type after applying the
! operator.§impl Octal for FeatureFlag
impl Octal for FeatureFlag
§impl Sub for FeatureFlag
impl Sub for FeatureFlag
§fn sub(self, other: FeatureFlag) -> FeatureFlag
fn sub(self, other: FeatureFlag) -> FeatureFlag
The intersection of a source flags value with the complement of a target flags value (&!).
This method is not equivalent to self & !other when other has unknown bits set.
difference won’t truncate other, but the ! operator will.
§type Output = FeatureFlag
type Output = FeatureFlag
The resulting type after applying the
- operator.§impl SubAssign for FeatureFlag
impl SubAssign for FeatureFlag
§fn sub_assign(&mut self, other: FeatureFlag)
fn sub_assign(&mut self, other: FeatureFlag)
The intersection of a source flags value with the complement of a target flags value (&!).
This method is not equivalent to self & !other when other has unknown bits set.
difference won’t truncate other, but the ! operator will.
§impl UpperHex for FeatureFlag
impl UpperHex for FeatureFlag
impl Copy for FeatureFlag
Auto Trait Implementations§
impl Freeze for FeatureFlag
impl RefUnwindSafe for FeatureFlag
impl Send for FeatureFlag
impl Sync for FeatureFlag
impl Unpin for FeatureFlag
impl UnwindSafe for FeatureFlag
Blanket Implementations§
§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
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§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit)§impl<T> Conv for T
impl<T> Conv for T
§impl<F, W, T, D> Deserialize<With<T, W>, D> for F
impl<F, W, T, D> Deserialize<With<T, W>, D> for F
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&self,
deserializer: &mut D,
) -> Result<With<T, W>, <D as Fallible>::Error>
fn deserialize( &self, deserializer: &mut D, ) -> Result<With<T, W>, <D as Fallible>::Error>
Deserializes using the given deserializer
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impl<T> FmtForward for T
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Self: Binary,
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Self: Binary,
Causes
self to use its Binary implementation when Debug-formatted.§fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
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Self: Display,
Causes
self to use its Display implementation when
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Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
Causes
self to use its LowerExp implementation when
Debug-formatted.§fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
Causes
self to use its LowerHex implementation when
Debug-formatted.§fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
Causes
self to use its Octal implementation when Debug-formatted.§fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
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Self: Pointer,
Causes
self to use its Pointer implementation when
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Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
Causes
self to use its UpperExp implementation when
Debug-formatted.§fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
Causes
self to use its UpperHex implementation when
Debug-formatted.§fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
Formats each item in a sequence. Read more
source§impl<T> ImplicitClone for Twhere
T: Clone,
impl<T> ImplicitClone for Twhere
T: Clone,
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fn clone_quote_var(&self) -> Self
Available on crate feature
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source§impl<T> IntoEither for T
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Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
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Gets the layout of the type.
§impl<D> OwoColorize for D
impl<D> OwoColorize for D
§fn fg<C>(&self) -> FgColorDisplay<'_, C, Self>where
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C: Color,
Set the foreground color generically Read more
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C: Color,
Set the background color generically. Read more
§fn on_magenta(&self) -> BgColorDisplay<'_, Magenta, Self>
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Change the background color to magenta
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Change the foreground color to the terminal default
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Change the background color to the terminal default
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Change the foreground color to bright black
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Change the background color to bright black
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Change the foreground color to bright red
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Change the background color to bright red
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Change the foreground color to bright green
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Change the background color to bright green
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Change the foreground color to bright yellow
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Change the background color to bright yellow
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Change the foreground color to bright blue
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Change the background color to bright blue
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Change the foreground color to bright magenta
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Change the background color to bright magenta
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Change the foreground color to bright purple
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Change the background color to bright purple
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Change the foreground color to bright cyan
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Change the background color to bright cyan
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Change the foreground color to bright white
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Change the background color to bright white
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Make the text blink (but fast!)
Hide the text
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Cross out the text
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Set the background color to a specific RGB value.
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Sets the background color to an RGB value.
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