Struct wasm_bindgen_externref_xform::Context

pub struct Context { /* fields omitted */ }

State of the externref pass, used to collect information while bindings are generated and used eventually to actually execute the entire pass.

Implementations

impl Context

pub fn prepare(&mut self, module: &mut Module) -> Result<(), Error>

Executed first very early over a wasm module, used to learn about how large the function table is so we know what indexes to hand out when we’re appending entries.

pub fn import_xform(
    &mut self,
    id: ImportId,
    externref: &[(usize, bool)],
    ret_externref: bool
) -> &mut Self

Store information about an imported function that needs to be transformed. The actual transformation happens later during run.

pub fn export_xform(
    &mut self,
    id: ExportId,
    externref: &[(usize, bool)],
    ret_externref: bool
) -> &mut Self

Store information about an exported function that needs to be transformed. The actual transformation happens later during run.

pub fn table_element_xform(
    &mut self,
    idx: u32,
    externref: &[(usize, bool)],
    ret_externref: bool
) -> Option<u32>

Store information about a function pointer that needs to be transformed. The actual transformation happens later during run. Returns an index that the new wrapped function pointer will be injected at.

pub fn run(&mut self, module: &mut Module) -> Result<Meta, Error>

Trait Implementations

impl Default for Context

fn default() -> Context

Returns the “default value” for a type.