Struct Kwargs 

pub struct Kwargs(pub Vec<(String, KwVal)>);

The kwargs bag handed to the *_kw trait hooks. Order-preserving — insertion order never matters to the converters, but it keeps error messages deterministic.

Tuple Fields

0: Vec<(String, KwVal)>

Implementations

impl Kwargs

pub fn is_empty(&self) -> bool

pub fn get(&self, key: &str) -> Option<&KwVal>

pub fn str(&self, key: &str) -> Option<&str>

pub fn bool(&self, key: &str) -> Option<bool>

pub fn int(&self, key: &str) -> Option<i64>

pub fn list(&self, key: &str) -> Option<&[String]>

pub fn only(&self, allowed: &[&str]) -> bool

True when every key is in allowed. A language’s *_kw override starts with this guard: an unexpected key means the Python signature would raise TypeError, so the hook returns NotImplemented and the dispatcher falls back to Python, which raises the original error.

Trait Implementations

impl Clone for Kwargs

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Kwargs

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

Formats the value using the given formatter.

impl Default for Kwargs

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Kwargs

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Kwargs