Enum wasmtime::ExternType

pub enum ExternType {
    Func(FuncType),
    Global(GlobalType),
    Table(TableType),
    Memory(MemoryType),
}

Available on crate feature runtime only.

A list of all possible types which can be externally referenced from a WebAssembly module.

This list can be found in ImportType or ExportType, so these types can either be imported or exported.

Variants

Func(FuncType)

This external type is the type of a WebAssembly function.

Global(GlobalType)

This external type is the type of a WebAssembly global.

Table(TableType)

This external type is the type of a WebAssembly table.

Memory(MemoryType)

This external type is the type of a WebAssembly memory.

Implementations

impl ExternType

pub fn func(&self) -> Option<&FuncType>

Attempt to return the underlying type of this external type, returning None if it is a different type.

pub fn unwrap_func(&self) -> &FuncType

Returns the underlying descriptor of this ExternType, panicking if it is a different type.

Panics

Panics if self is not of the right type.

pub fn global(&self) -> Option<&GlobalType>

Attempt to return the underlying type of this external type, returning None if it is a different type.

pub fn unwrap_global(&self) -> &GlobalType

Returns the underlying descriptor of this ExternType, panicking if it is a different type.

Panics

Panics if self is not of the right type.

pub fn table(&self) -> Option<&TableType>

Attempt to return the underlying type of this external type, returning None if it is a different type.

pub fn unwrap_table(&self) -> &TableType

Returns the underlying descriptor of this ExternType, panicking if it is a different type.

Panics

Panics if self is not of the right type.

pub fn memory(&self) -> Option<&MemoryType>

Attempt to return the underlying type of this external type, returning None if it is a different type.

pub fn unwrap_memory(&self) -> &MemoryType

Returns the underlying descriptor of this ExternType, panicking if it is a different type.

Panics

Panics if self is not of the right type.

Trait Implementations

impl Clone for ExternType

fn clone(&self) -> ExternType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExternType

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

Formats the value using the given formatter.

impl From<FuncType> for ExternType

fn from(ty: FuncType) -> ExternType

Converts to this type from the input type.

impl From<GlobalType> for ExternType

fn from(ty: GlobalType) -> ExternType

Converts to this type from the input type.

impl From<MemoryType> for ExternType

fn from(ty: MemoryType) -> ExternType

Converts to this type from the input type.

impl From<TableType> for ExternType

fn from(ty: TableType) -> ExternType

Converts to this type from the input type.