Enum wasmtime_environ::Initializer

pub enum Initializer {
    Import {
        name: String,
        field: Option<String>,
        index: EntityIndex,
    },
    AliasInstanceExport {
        instance: InstanceIndex,
        export: String,
    },
    Instantiate {
        module: ModuleIndex,
        args: IndexMap<String, EntityIndex>,
    },
    CreateModule {
        artifact_index: usize,
        artifacts: Vec<usize>,
        modules: Vec<ModuleUpvar>,
    },
    DefineModule(usize),
}

Initialization routines for creating an instance, encompassing imports, modules, instances, aliases, etc.

Variants

Import

An imported item is required to be provided.

Fields of Import

name: String

Name of this import

field: Option<String>

The field name projection of this import. When module-linking is enabled this is always None. Otherwise this is always Some.

index: EntityIndex

Where this import will be placed, which also has type information about the import.

AliasInstanceExport

An export from a previously defined instance is being inserted into our index space.

Note that when the module linking proposal is enabled two-level imports will implicitly desugar to this initializer.

Fields of AliasInstanceExport

instance: InstanceIndex

The instance that we’re referencing.

export: String

Which export is being inserted into our index space.

Instantiate

A module is being instantiated with previously configured initializers as arguments.

Fields of Instantiate

module: ModuleIndex

The module that this instance is instantiating.

args: IndexMap<String, EntityIndex>

The arguments provided to instantiation, along with their name in the instance being instantiated.

CreateModule

A module is being created from a set of compiled artifacts.

Fields of CreateModule

artifact_index: usize

The index of the artifact that’s being converted into a module.

artifacts: Vec<usize>

The list of artifacts that this module value will be inheriting.

modules: Vec<ModuleUpvar>

The list of modules that this module value will inherit.

DefineModule(usize)

A module is created from a closed-over-module value, defined when this module was created.

Trait Implementations

impl Clone for Initializer

fn clone(&self) -> Initializer

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Initializer

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Initializer

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Serialize for Initializer

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.