Struct Context
pub struct Context(/* private fields */);
Implementations§
§impl Context
impl Context
pub fn is_reserved(self, word: &Word) -> bool
pub fn is_reserved_word(self, word: &Atom) -> bool
§impl Context
impl Context
pub const IgnoreError: Context
pub const IgnoreError: Context
true
while backtracking
pub const CanBeModule: Context
pub const Strict: Context
pub const ForLoopInit: Context
pub const ForAwaitLoopInit: Context
pub const IncludeInExpr: Context
pub const InGenerator: Context
pub const InGenerator: Context
If true, yield expression is parsed, and “yield” is treated as a keyword.
pub const InStaticBlock: Context
pub const InStaticBlock: Context
If true, await is treated as a keyword.
pub const IsContinueAllowed: Context
pub const IsBreakAllowed: Context
pub const InType: Context
pub const ShouldNotLexLtOrGtAsType: Context
pub const ShouldNotLexLtOrGtAsType: Context
Typescript extension.
pub const InCondExpr: Context
pub const InCondExpr: Context
If true, :
should not be treated as a type annotation.
pub const WillExpectColonForCond: Context
pub const InClass: Context
pub const InClassField: Context
pub const InFunction: Context
pub const InsideNonArrowFunctionScope: Context
pub const InsideNonArrowFunctionScope: Context
This indicates current scope or the scope out of arrow function is function declaration or function expression or not.
pub const InParameters: Context
pub const HasSuperClass: Context
pub const InPropertyName: Context
pub const InForcedJsxContext: Context
pub const AllowDirectSuper: Context
pub const IgnoreElseClause: Context
pub const DisallowConditionalTypes: Context
pub const AllowUsingDecl: Context
pub const TopLevel: Context
§impl Context
impl Context
pub const fn bits(&self) -> u32
pub const fn bits(&self) -> u32
Get the underlying bits value.
The returned value is exactly the bits set in this flags value.
pub const fn from_bits(bits: u32) -> Option<Context>
pub const fn from_bits(bits: u32) -> Option<Context>
Convert from a bits value.
This method will return None
if any unknown bits are set.
pub const fn from_bits_truncate(bits: u32) -> Context
pub const fn from_bits_truncate(bits: u32) -> Context
Convert from a bits value, unsetting any unknown bits.
pub const fn from_bits_retain(bits: u32) -> Context
pub const fn from_bits_retain(bits: u32) -> Context
Convert from a bits value exactly.
pub fn from_name(name: &str) -> Option<Context>
pub fn from_name(name: &str) -> Option<Context>
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: Context) -> bool
pub const fn intersects(&self, other: Context) -> bool
Whether any set bits in a source flags value are also set in a target flags value.
pub const fn contains(&self, other: Context) -> bool
pub const fn contains(&self, other: Context) -> bool
Whether all set bits in a source flags value are also set in a target flags value.
pub fn remove(&mut self, other: Context)
pub fn remove(&mut self, other: Context)
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: Context)
pub fn toggle(&mut self, other: Context)
The bitwise exclusive-or (^
) of the bits in two flags values.
pub fn set(&mut self, other: Context, value: bool)
pub fn set(&mut self, other: Context, value: bool)
Call insert
when value
is true
or remove
when value
is false
.
pub const fn intersection(self, other: Context) -> Context
pub const fn intersection(self, other: Context) -> Context
The bitwise and (&
) of the bits in two flags values.
pub const fn union(self, other: Context) -> Context
pub const fn union(self, other: Context) -> Context
The bitwise or (|
) of the bits in two flags values.
pub const fn difference(self, other: Context) -> Context
pub const fn difference(self, other: Context) -> Context
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: Context) -> Context
pub const fn symmetric_difference(self, other: Context) -> Context
The bitwise exclusive-or (^
) of the bits in two flags values.
pub const fn complement(self) -> Context
pub const fn complement(self) -> Context
The bitwise negation (!
) of the bits in a flags value, truncating the result.
§impl Context
impl Context
pub const fn iter(&self) -> Iter<Context>
pub const fn iter(&self) -> Iter<Context>
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<Context>
pub const fn iter_names(&self) -> IterNames<Context>
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 BitAndAssign for Context
impl BitAndAssign for Context
§fn bitand_assign(&mut self, other: Context)
fn bitand_assign(&mut self, other: Context)
The bitwise and (&
) of the bits in two flags values.
§impl BitOrAssign for Context
impl BitOrAssign for Context
§fn bitor_assign(&mut self, other: Context)
fn bitor_assign(&mut self, other: Context)
The bitwise or (|
) of the bits in two flags values.
§impl BitXorAssign for Context
impl BitXorAssign for Context
§fn bitxor_assign(&mut self, other: Context)
fn bitxor_assign(&mut self, other: Context)
The bitwise exclusive-or (^
) of the bits in two flags values.
§impl Extend<Context> for Context
impl Extend<Context> for Context
§fn extend<T>(&mut self, iterator: T)where
T: IntoIterator<Item = Context>,
fn extend<T>(&mut self, iterator: T)where
T: IntoIterator<Item = Context>,
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)
extend_one
)Source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
extend_one
)§impl Flags for Context
impl Flags for Context
§fn from_bits_retain(bits: u32) -> Context
fn from_bits_retain(bits: u32) -> Context
§fn from_bits_truncate(bits: Self::Bits) -> Self
fn from_bits_truncate(bits: Self::Bits) -> Self
§fn from_name(name: &str) -> Option<Self>
fn from_name(name: &str) -> Option<Self>
§fn iter_names(&self) -> IterNames<Self>
fn iter_names(&self) -> IterNames<Self>
§fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
fn intersects(&self, other: Self) -> boolwhere
Self: Sized,
§fn contains(&self, other: Self) -> boolwhere
Self: Sized,
fn contains(&self, other: Self) -> boolwhere
Self: Sized,
§fn insert(&mut self, other: Self)where
Self: Sized,
fn insert(&mut self, other: Self)where
Self: Sized,
|
) 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,
&!
). Read more§fn toggle(&mut self, other: Self)where
Self: Sized,
fn toggle(&mut self, other: Self)where
Self: Sized,
^
) 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,
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
&
) of the bits in two flags values.§fn difference(self, other: Self) -> Self
fn difference(self, other: Self) -> Self
&!
). Read more§fn symmetric_difference(self, other: Self) -> Self
fn symmetric_difference(self, other: Self) -> Self
^
) of the bits in two flags values.§fn complement(self) -> Self
fn complement(self) -> Self
!
) of the bits in a flags value, truncating the result.§impl FromIterator<Context> for Context
impl FromIterator<Context> for Context
§fn from_iter<T>(iterator: T) -> Contextwhere
T: IntoIterator<Item = Context>,
fn from_iter<T>(iterator: T) -> Contextwhere
T: IntoIterator<Item = Context>,
The bitwise or (|
) of the bits in each flags value.
§impl IntoIterator for Context
impl IntoIterator for Context
§impl Sub for Context
impl Sub for Context
§impl SubAssign for Context
impl SubAssign for Context
§fn sub_assign(&mut self, other: Context)
fn sub_assign(&mut self, other: Context)
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 Copy for Context
Auto Trait Implementations§
impl Freeze for Context
impl RefUnwindSafe for Context
impl Send for Context
impl Sync for Context
impl Unpin for Context
impl UnwindSafe for Context
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impl<T> ArchivePointee for T
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type ArchivedMetadata = ()
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_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
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T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
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fn borrow_mut(&mut self) -> &mut T
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Self: Binary,
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to use its Binary
implementation when Debug
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