Struct witnext::Function

pub struct Function {
    pub abi: Abi,
    pub name: Id,
    pub params: Vec<Param>,
    pub results: Vec<Param>,
    pub noreturn: bool,
    pub docs: String,
}

Fields

abi: Abi

name: Id

params: Vec<Param>

results: Vec<Param>

noreturn: bool

docs: String

Implementations

impl Function

pub fn wasm_signature(&self, mode: CallMode) -> WasmSignature

Get the WebAssembly type signature for this interface function

The first entry returned is the list of parameters and the second entry is the list of results for the wasm function signature.

pub fn call(&self, module: &Id, mode: CallMode, bindgen: &mut impl Bindgen)

Generates an abstract sequence of instructions which represents this function being adapted as an imported function.

The instructions here, when executed, will emulate a language with interface types calling the concrete wasm implementation. The parameters for the returned instruction sequence are the language’s own interface-types parameters. One instruction in the instruction stream will be a Call which represents calling the actual raw wasm function signature.

This function is useful, for example, if you’re building a language generator for WASI bindings. This will document how to translate language-specific values into the wasm types to call a WASI function, and it will also automatically convert the results of the WASI function back to a language-specific value.

Trait Implementations

impl Clone for Function

fn clone(&self) -> Function

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Function

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

Formats the value using the given formatter.

impl Hash for Function

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, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<Function> for Function

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for Function

impl StructuralEq for Function

impl StructuralPartialEq for Function