pub(crate) mod function;
mod global;
mod memory;
mod table;
pub use self::function::{
FromToNativeWasmType, Function, HostFunction, WasmTypeList, WithEnv, WithoutEnv,
};
pub use self::global::Global;
pub use self::memory::Memory;
pub use self::table::Table;
use crate::sys::exports::{ExportError, Exportable};
use crate::sys::store::{Store, StoreObject};
use crate::sys::ExternType;
use std::fmt;
use wasmer_vm::Export;
#[derive(Clone)]
pub enum Extern {
Function(Function),
Global(Global),
Table(Table),
Memory(Memory),
}
impl Extern {
pub fn ty(&self) -> ExternType {
match self {
Self::Function(ft) => ExternType::Function(ft.ty().clone()),
Self::Memory(ft) => ExternType::Memory(ft.ty()),
Self::Table(tt) => ExternType::Table(*tt.ty()),
Self::Global(gt) => ExternType::Global(*gt.ty()),
}
}
pub fn from_vm_export(store: &Store, export: Export) -> Self {
match export {
Export::Function(f) => Self::Function(Function::from_vm_export(store, f)),
Export::Memory(m) => Self::Memory(Memory::from_vm_export(store, m)),
Export::Global(g) => Self::Global(Global::from_vm_export(store, g)),
Export::Table(t) => Self::Table(Table::from_vm_export(store, t)),
}
}
}
impl<'a> Exportable<'a> for Extern {
fn to_export(&self) -> Export {
match self {
Self::Function(f) => f.to_export(),
Self::Global(g) => g.to_export(),
Self::Memory(m) => m.to_export(),
Self::Table(t) => t.to_export(),
}
}
fn get_self_from_extern(_extern: Self) -> Result<Self, ExportError> {
Ok(_extern)
}
fn into_weak_instance_ref(&mut self) {
match self {
Self::Function(f) => f.into_weak_instance_ref(),
Self::Global(g) => g.into_weak_instance_ref(),
Self::Memory(m) => m.into_weak_instance_ref(),
Self::Table(t) => t.into_weak_instance_ref(),
}
}
}
impl StoreObject for Extern {
fn comes_from_same_store(&self, store: &Store) -> bool {
let my_store = match self {
Self::Function(f) => f.store(),
Self::Global(g) => g.store(),
Self::Memory(m) => m.store(),
Self::Table(t) => t.store(),
};
Store::same(my_store, store)
}
}
impl fmt::Debug for Extern {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(
f,
"{}",
match self {
Self::Function(_) => "Function(...)",
Self::Global(_) => "Global(...)",
Self::Memory(_) => "Memory(...)",
Self::Table(_) => "Table(...)",
}
)
}
}
impl From<Function> for Extern {
fn from(r: Function) -> Self {
Self::Function(r)
}
}
impl From<Global> for Extern {
fn from(r: Global) -> Self {
Self::Global(r)
}
}
impl From<Memory> for Extern {
fn from(r: Memory) -> Self {
Self::Memory(r)
}
}
impl From<Table> for Extern {
fn from(r: Table) -> Self {
Self::Table(r)
}
}