Struct wasmtime_runtime::Imports

pub struct Imports<'a> {
    pub functions: &'a [VMFunctionImport],
    pub tables: &'a [VMTableImport],
    pub memories: &'a [VMMemoryImport],
    pub globals: &'a [VMGlobalImport],
    pub instances: PrimaryMap<InstanceIndex, InstanceHandle>,
    pub modules: PrimaryMap<ModuleIndex, Box<dyn Any>>,
}

Resolved import pointers.

Note that some of these fields are slices, not PrimaryMap. They should be stored in index-order as with the module that we’re providing the imports for, and indexing is all done the same way as the main module’s index spaces.

Also note that the way we compile modules means that for the module linking proposal all alias directives should map to imported items. This means that each of these items aren’t necessarily directly imported, but may be aliased.

Fields

functions: &'a [VMFunctionImport]

Resolved addresses for imported functions.

tables: &'a [VMTableImport]

Resolved addresses for imported tables.

memories: &'a [VMMemoryImport]

Resolved addresses for imported memories.

globals: &'a [VMGlobalImport]

Resolved addresses for imported globals.

instances: PrimaryMap<InstanceIndex, InstanceHandle>

Resolved imported instances.

modules: PrimaryMap<ModuleIndex, Box<dyn Any>>

Resolved imported modules.

Note that Box<Any> here is chosen to allow the embedder of this crate to pick an appropriate representation of what module type should be. For example for the wasmtime crate it’s wasmtime::Module but that’s not defined way down here in this low crate.

Trait Implementations

impl<'a> Default for Imports<'a>

fn default() -> Imports<'a>

Returns the “default value” for a type.