Struct Param 

pub struct Param<'a, V: SQLParam> {
    pub placeholder: Placeholder,
    pub value: Option<Cow<'a, V>>,
}

A SQL parameter that associates a value with a placeholder. Designed to be const-friendly and zero-cost when possible.

Fields

placeholder: Placeholder

The placeholder to use in the SQL

value: Option<Cow<'a, V>>

The value to bind

Implementations

impl<'a, V: SQLParam> Param<'a, V>

pub fn new(placeholder: Placeholder, value: Option<Cow<'a, V>>) -> Self

impl<'a, T: SQLParam> Param<'a, T>

pub const fn positional(value: T) -> Self

Creates a new parameter with a positional placeholder

pub const fn from_placeholder(placeholder: Placeholder) -> Self

Creates a new parameter with a specific placeholder and no value

pub const fn named(name: &'static str, value: T) -> Self

Creates a new parameter with a named placeholder (colon style)

pub const fn with_placeholder(placeholder: Placeholder, value: T) -> Self

Creates a new parameter with a specific placeholder

Trait Implementations

impl<'a, V: Clone + SQLParam> Clone for Param<'a, V>

fn clone(&self) -> Param<'a, V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, V: Debug + SQLParam> Debug for Param<'a, V>

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

Formats the value using the given formatter.

impl<'a, V: SQLParam> From<&'a OwnedParam<V>> for Param<'a, V>

fn from(value: &'a OwnedParam<V>) -> Self

Converts to this type from the input type.

impl<'a, V: SQLParam> From<&Param<'a, V>> for OwnedParam<V>

fn from(value: &Param<'a, V>) -> Self

Converts to this type from the input type.

impl<'a, V: SQLParam> From<OwnedParam<V>> for Param<'a, V>

fn from(value: OwnedParam<V>) -> Self

Converts to this type from the input type.

impl<'a, V: SQLParam> From<Param<'a, V>> for OwnedParam<V>

fn from(value: Param<'a, V>) -> Self

Converts to this type from the input type.

impl<'a, V: SQLParam> From<Param<'a, V>> for SQLChunk<'a, V>

fn from(value: Param<'a, V>) -> Self

Converts to this type from the input type.

impl<'a, V: SQLParam> From<Placeholder> for Param<'a, V>

fn from(value: Placeholder) -> Self

Converts to this type from the input type.