Struct ParametersBuilder

pub struct ParametersBuilder { /* private fields */ }

Helper to build a parameters hash.

A collection of parameters are like the type parameters like String and i64 in a signature like:

::my_crate::Map<String, i64>

Examples

use rune::TypeHash;
use rune::hash::ParametersBuilder;

let mut params = ParametersBuilder::new();

let params = params.add(String::HASH)?;
let params = params.add(i64::HASH)?;

let hash = params.finish();

Implementations

impl ParametersBuilder

pub const fn new() -> Self

Construct a new collection of parameters.

pub const fn add(self, Hash: Hash) -> Result<Self, TooManyParameters>

Add a hash to the collection of parameters.

Errors

Errors if too many parameters are added.

pub const fn finish(self) -> Hash

Finish building the parameters hash.

Trait Implementations

impl Default for ParametersBuilder

fn default() -> ParametersBuilder

Returns the “default value” for a type.