Struct Row

pub struct Row {
    pub inner: Vec<Value>,
}

A row is a vector of values.

TODO(discord9): use a more efficient representation i.e. more compact like raw u8 of [tag0, value0, tag1, value1, …]

Fields

inner: Vec<Value>

The inner vector of values

Implementations

impl Row

pub fn empty() -> Self

Create an empty row

pub fn is_empty(&self) -> bool

Returns true if the Row contains no elements.

pub fn new(row: Vec<Value>) -> Self

Create a row from a vector of values

pub fn get(&self, idx: usize) -> Option<&Value>

Get the value at the given index

pub fn clear(&mut self)

Clear the row

pub fn packer(&mut self) -> &mut Vec<Value>

clear and return the inner vector

useful if you want to reuse the vector as a buffer

pub fn pack<I>(iter: I) -> Row

where I: IntoIterator<Item = Value>,

pack a iterator of values into a row

pub fn unpack(self) -> Vec<Value>

unpack a row into a vector of values

pub fn extend<I>(&mut self, iter: I)

where I: IntoIterator<Item = Value>,

extend the row with values from an iterator

pub fn into_iter(self) -> impl Iterator<Item = Value>

Creates a consuming iterator, that is, one that moves each value out of the Row (from start to end). The Row cannot be used after calling this

pub fn iter(&self) -> impl Iterator<Item = &Value>

Returns an iterator over the slice.

pub fn len(&self) -> usize

Returns the number of elements in the row, also known as its ‘length’.

Trait Implementations

impl Clone for Row

fn clone(&self) -> Row

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Row

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

Formats the value using the given formatter.

impl Default for Row

fn default() -> Row

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Row

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Row> for Row

fn from(row: ProtoRow) -> Self

Converts to this type from the input type.

impl From<Row> for Row

fn from(row: Row) -> Self

Converts to this type from the input type.

impl From<Vec<Value>> for Row

fn from(row: Vec<Value>) -> Self

Converts to this type from the input type.

impl GetSize for Row

fn get_heap_size(&self) -> usize

Determines how many bytes this object occupies inside the heap.

fn get_stack_size() -> usize

Determines how may bytes this object occupies inside the stack.

fn get_heap_size_with_tracker<T>(&self, tracker: T) -> (usize, T)

where T: GetSizeTracker,

Determines how many bytes this object occupies inside the heap while using a tracker.

fn get_size(&self) -> usize

Determines the total size of the object.

fn get_size_with_tracker<T>(&self, tracker: T) -> (usize, T)

where T: GetSizeTracker,

Determines the total size of the object while using a tracker.

impl Hash for Row

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 Row

fn cmp(&self, other: &Row) -> 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 Row

fn eq(&self, other: &Row) -> 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 Row

fn partial_cmp(&self, other: &Row) -> 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 Row

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 Row

impl StructuralPartialEq for Row