pub struct ShapeFlags(pub u8);Expand description
Explicit per-descriptor state markers. A bit set means the descriptor is an honest marker rather than a silently-zeroed fingerprint.
Tuple Fields§
§0: u8Implementations§
Source§impl ShapeFlags
impl ShapeFlags
Sourcepub const UNHASHABLE: u8 = 0b0000_0001
pub const UNHASHABLE: u8 = 0b0000_0001
Body had fewer than MIN_HASHABLE_TOKENS tokens; the fingerprint is not
meaningful (AC-1).
Sourcepub const TRUNCATED: u8 = 0b0000_0010
pub const TRUNCATED: u8 = 0b0000_0010
Body exceeded the walker node-count budget; the descriptor is partial (design §9 over-budget marker).
Sourcepub const fn empty() -> Self
pub const fn empty() -> Self
An empty flag set (the common case for a normal, fully-computed descriptor).
Sourcepub const fn is_unhashable(self) -> bool
pub const fn is_unhashable(self) -> bool
True when the unhashable marker is set.
Sourcepub const fn is_truncated(self) -> bool
pub const fn is_truncated(self) -> bool
True when the truncated marker is set.
Sourcepub const fn set_unhashable(&mut self)
pub const fn set_unhashable(&mut self)
Set the unhashable marker.
Sourcepub const fn set_truncated(&mut self)
pub const fn set_truncated(&mut self)
Set the truncated marker.
Trait Implementations§
Source§impl Clone for ShapeFlags
impl Clone for ShapeFlags
Source§fn clone(&self) -> ShapeFlags
fn clone(&self) -> ShapeFlags
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for ShapeFlags
Source§impl Debug for ShapeFlags
impl Debug for ShapeFlags
Source§impl Default for ShapeFlags
impl Default for ShapeFlags
Source§fn default() -> ShapeFlags
fn default() -> ShapeFlags
Returns the “default value” for a type. Read more
Source§impl<'de> Deserialize<'de> for ShapeFlags
impl<'de> Deserialize<'de> for ShapeFlags
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl Eq for ShapeFlags
Source§impl Hash for ShapeFlags
impl Hash for ShapeFlags
Source§impl PartialEq for ShapeFlags
impl PartialEq for ShapeFlags
Source§fn eq(&self, other: &ShapeFlags) -> bool
fn eq(&self, other: &ShapeFlags) -> bool
Tests for
self and other values to be equal, and is used by ==.Source§impl Serialize for ShapeFlags
impl Serialize for ShapeFlags
impl StructuralPartialEq for ShapeFlags
Auto Trait Implementations§
impl Freeze for ShapeFlags
impl RefUnwindSafe for ShapeFlags
impl Send for ShapeFlags
impl Sync for ShapeFlags
impl Unpin for ShapeFlags
impl UnsafeUnpin for ShapeFlags
impl UnwindSafe for ShapeFlags
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