wasm_wave/wasm/
func.rs

1use std::borrow::Cow;
2
3use crate::wasm::WasmType;
4
5// TODO: Given recent versions of rustc we may want to take a look at changing the returns of boxed
6// iterators to -> impl Iterator
7
8/// The WasmFunc trait may be implemented to represent Wasm func type
9/// signatures to be (de)serialized with WAVE.
10pub trait WasmFunc {
11    /// A type representing types of these params and results.
12    type Type: WasmType;
13
14    /// Returns an iterator of the func's parameter types.
15    fn params(&self) -> Box<dyn Iterator<Item = Self::Type> + '_>;
16
17    /// Returns an iterator of the func's parameter names. Must be the same
18    /// length as the iterator returned by `params` or empty if this WasmFunc
19    /// impl does not support param names.
20    fn param_names(&self) -> Box<dyn Iterator<Item = Cow<'_, str>> + '_> {
21        Box::new(std::iter::empty())
22    }
23
24    /// Returns an iterator of the func's result types.
25    fn results(&self) -> Box<dyn Iterator<Item = Self::Type> + '_>;
26
27    /// Returns an iterator of the func's result names. Must be the same
28    /// length as the iterator returned by `results` or empty if there are no
29    /// named results or if this WasmFunc impl does not support result names.
30    fn result_names(&self) -> Box<dyn Iterator<Item = Cow<'_, str>> + '_> {
31        Box::new(std::iter::empty())
32    }
33}
wasm_wave/wasm/func.rs

wasm_wave/wasm/
func.rs
