Struct wasm_bindgen_backend::ast::ImportFunction

pub struct ImportFunction {
    pub function: Function,
    pub rust_name: Ident,
    pub js_ret: Option<Type>,
    pub catch: bool,
    pub variadic: bool,
    pub structural: bool,
    pub assert_no_shim: bool,
    pub kind: ImportFunctionKind,
    pub shim: Ident,
    pub doc_comment: Option<String>,
}

A function being imported from JS

Fields

function: Function

The full signature of the function

rust_name: Ident

The name rust code will use

js_ret: Option<Type>

The type being returned

catch: bool

Whether to catch JS exceptions

variadic: bool

Whether the function is variadic on the JS side

structural: bool

Whether the function should use structural type checking

assert_no_shim: bool

Causes the Builder (See cli-support::js::binding::Builder) to error out if it finds itself generating code for a function with this signature

kind: ImportFunctionKind

The kind of function being imported

shim: Ident

The shim name to use in the generated code. The ‘shim’ is a function that appears in the generated JS as a wrapper around the actual function to import, performing any necessary conversions (EG adding a try/catch to change a thrown error into a Result)

doc_comment: Option<String>

The doc comment on this import, if one is provided

Trait Implementations

impl Clone for ImportFunction

fn clone(&self) -> ImportFunction

Returns a copy of the value.

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

Performs copy-assignment from source.

impl TryToTokens for ImportFunction

fn try_to_tokens(&self, tokens: &mut TokenStream) -> Result<(), Diagnostic>

Attempt to convert a Self into tokens and add it to the TokenStream

fn try_to_token_stream(&self) -> Result<TokenStream, Diagnostic>

Attempt to convert a Self into a new TokenStream