Struct layout_2020::fragment_tree::base_fragment::FragmentFlags

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pub(crate) struct FragmentFlags(<FragmentFlags as PublicFlags>::Internal);
Expand description

Flags used to track various information about a DOM node during layout.

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§0: <FragmentFlags as PublicFlags>::Internal

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impl FragmentFlags

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pub const IS_BODY_ELEMENT_OF_HTML_ELEMENT_ROOT: Self = _

Whether or not the node that created this fragment is a <body> element on an HTML document.

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pub const IS_BR_ELEMENT: Self = _

Whether or not the node that created this Fragment is a <br> element.

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pub const IS_FLEX_ITEM: Self = _

Whether or not this Fragment is a flex item.

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pub const IS_REPLACED: Self = _

Whether or not this Fragment was created to contain a replaced element or is a replaced element.

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pub const IS_TABLE_TH_OR_TD_ELEMENT: Self = _

Whether or not the node that created was a <table>, <th> or <td> element. Note that this does not include elements with display: table or display: table-cell.

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pub const IS_OUTSIDE_LIST_ITEM_MARKER: Self = _

Whether or not this Fragment was created to contain a list item marker with a used value of list-style-position: outside.

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pub const DO_NOT_PAINT: Self = _

Avoid painting the borders, backgrounds, and drop shadow for this fragment, this is used for empty table cells when ‘empty-cells’ is ‘hide’ and also table wrappers. This flag doesn’t avoid hit-testing nor does it prevent the painting outlines.

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pub const SIZE_DEPENDS_ON_BLOCK_CONSTRAINTS_AND_CAN_BE_CHILD_OF_FLEX_ITEM: Self = _

Whether or not the size of this fragment depends on the block size of its container and the fragment can be a flex item. This flag is used to cache items during flex layout.

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impl FragmentFlags

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pub const fn empty() -> Self

Get a flags value with all bits unset.

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pub const fn all() -> Self

Get a flags value with all known bits set.

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pub const fn bits(&self) -> u8

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

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pub const fn from_bits(bits: u8) -> Option<Self>

Convert from a bits value.

This method will return None if any unknown bits are set.

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pub const fn from_bits_truncate(bits: u8) -> Self

Convert from a bits value, unsetting any unknown bits.

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pub const fn from_bits_retain(bits: u8) -> Self

Convert from a bits value exactly.

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pub fn from_name(name: &str) -> Option<Self>

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.

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pub const fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

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pub const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

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pub const fn intersects(&self, other: Self) -> bool

Whether any set bits in a source flags value are also set in a target flags value.

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pub const fn contains(&self, other: Self) -> bool

Whether all set bits in a source flags value are also set in a target flags value.

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pub fn insert(&mut self, other: Self)

The bitwise or (|) of the bits in two flags values.

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pub fn remove(&mut self, other: Self)

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.

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pub fn toggle(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in two flags values.

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pub fn set(&mut self, other: Self, value: bool)

Call insert when value is true or remove when value is false.

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pub const fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.

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pub const fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.

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pub const fn difference(self, other: Self) -> Self

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.

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pub const fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.

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pub const fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

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impl FragmentFlags

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pub const fn iter(&self) -> Iter<FragmentFlags>

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.

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pub const fn iter_names(&self) -> IterNames<FragmentFlags>

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§

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impl Binary for FragmentFlags

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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 BitAnd for FragmentFlags

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fn bitand(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.

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type Output = FragmentFlags

The resulting type after applying the & operator.
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impl BitAndAssign for FragmentFlags

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fn bitand_assign(&mut self, other: Self)

The bitwise and (&) of the bits in two flags values.

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impl BitOr for FragmentFlags

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fn bitor(self, other: FragmentFlags) -> Self

The bitwise or (|) of the bits in two flags values.

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type Output = FragmentFlags

The resulting type after applying the | operator.
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impl BitOrAssign for FragmentFlags

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fn bitor_assign(&mut self, other: Self)

The bitwise or (|) of the bits in two flags values.

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impl BitXor for FragmentFlags

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fn bitxor(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.

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type Output = FragmentFlags

The resulting type after applying the ^ operator.
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impl BitXorAssign for FragmentFlags

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fn bitxor_assign(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in two flags values.

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impl Clone for FragmentFlags

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fn clone(&self) -> FragmentFlags

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 FragmentFlags

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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 Extend<FragmentFlags> for FragmentFlags

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fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

The bitwise or (|) of the bits in each flags value.

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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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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
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impl Flags for FragmentFlags

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const FLAGS: &'static [Flag<FragmentFlags>] = _

The set of defined flags.
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type Bits = u8

The underlying bits type.
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fn bits(&self) -> u8

Get the underlying bits value. Read more
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fn from_bits_retain(bits: u8) -> FragmentFlags

Convert from a bits value exactly.
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fn empty() -> Self

Get a flags value with all bits unset.
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fn all() -> Self

Get a flags value with all known bits set.
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fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from a bits value. Read more
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fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from a bits value, unsetting any unknown bits.
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fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set. Read more
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fn iter(&self) -> Iter<Self>

Yield a set of contained flags values. Read more
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fn iter_names(&self) -> IterNames<Self>

Yield a set of contained named flags values. Read more
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fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.
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fn is_all(&self) -> bool

Whether all known bits in this flags value are set.
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fn intersects(&self, other: Self) -> bool
where Self: Sized,

Whether any set bits in a source flags value are also set in a target flags value.
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fn contains(&self, other: Self) -> bool
where Self: Sized,

Whether all set bits in a source flags value are also set in a target flags value.
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fn insert(&mut self, other: Self)
where Self: Sized,

The bitwise or (|) of the bits in two flags values.
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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
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fn toggle(&mut self, other: Self)
where Self: Sized,

The bitwise exclusive-or (^) of the bits in two flags values.
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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.
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fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.
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fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.
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fn difference(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!). Read more
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fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.
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fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.
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impl FromIterator<FragmentFlags> for FragmentFlags

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fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

The bitwise or (|) of the bits in each flags value.

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impl IntoIterator for FragmentFlags

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type Item = FragmentFlags

The type of the elements being iterated over.
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type IntoIter = Iter<FragmentFlags>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl LowerHex for FragmentFlags

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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 Not for FragmentFlags

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fn not(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

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type Output = FragmentFlags

The resulting type after applying the ! operator.
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impl Octal for FragmentFlags

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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 PublicFlags for FragmentFlags

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type Primitive = u8

The type of the underlying storage.
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type Internal = InternalBitFlags

The type of the internal field on the generated flags type.
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impl Serialize for FragmentFlags

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Sub for FragmentFlags

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fn sub(self, other: Self) -> Self

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.

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type Output = FragmentFlags

The resulting type after applying the - operator.
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impl SubAssign for FragmentFlags

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fn sub_assign(&mut self, other: Self)

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.

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impl UpperHex for FragmentFlags

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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 Copy for FragmentFlags

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