Struct ColumnId 

pub struct ColumnId(/* private fields */);

A stable column identifier for persisted layouts: the value of GridColumns::id. Unlike ColumnIx it survives schema changes, so saved layouts and sort keys refer to columns by it. Not for the hot path.

An id from the schema borrows its &'static str and does not allocate; an id read from a saved layout owns its text. Both compare, hash and order by the text alone, so either can look up the other in a map. Serialized as a plain string.

Implementations

impl ColumnId

pub const fn new_static(id: &'static str) -> Self

An id that borrows a static string, such as a GridColumns::id.

pub fn new(id: impl Into<String>) -> Self

An id that owns its text, such as one read from a file.

pub fn as_str(&self) -> &str

The id as text.

Trait Implementations

impl AsRef<str> for ColumnId

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<str> for ColumnId

fn borrow(&self) -> &str

Immutably borrows from an owned value.

impl Clone for ColumnId

fn clone(&self) -> ColumnId

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ColumnId

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ColumnId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ColumnId

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&'static str> for ColumnId

fn from(id: &'static str) -> Self

Converts to this type from the input type.

impl From<String> for ColumnId

fn from(id: String) -> Self

Converts to this type from the input type.

impl Hash for ColumnId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ColumnId

fn cmp(&self, other: &ColumnId) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ColumnId

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl PartialOrd for ColumnId

fn partial_cmp(&self, other: &ColumnId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ColumnId

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ColumnId

impl StructuralPartialEq for ColumnId