Struct wasmtime_environ::ModuleEnvironment

pub struct ModuleEnvironment<'data> { /* private fields */ }

Object containing the standalone environment information.

Implementations

impl<'data> ModuleEnvironment<'data>

pub fn new(tunables: &Tunables, features: &WasmFeatures) -> Self

Allocates the environment data structures.

pub fn translate(
    self,
    data: &'data [u8]
) -> WasmResult<(usize, Vec<ModuleTranslation<'data>>, TypeTables)>

Translate a wasm module using this environment.

This consumes the ModuleEnvironment and produces a list of ModuleTranslations as well as a TypeTables. The list of module translations corresponds to all wasm modules found in the input data. Note that for MVP modules this will always be a list with one element, but with the module linking proposal this may have many elements.

For the module linking proposal the top-level module is returned as the first return value.

The TypeTables structure returned contains intern’d versions of types referenced from each module translation. This primarily serves as the source of truth for module-linking use cases where modules can refer to other module’s types. All SignatureIndex, ModuleTypeIndex, and InstanceTypeIndex values are resolved through the returned tables.