mod func;
mod global;
mod memory;
mod table;
pub(crate) use memory::MemoryCreatorProxy;
pub use self::func::*;
use self::global::create_global;
use self::memory::create_memory;
use self::table::create_table;
use crate::module::BareModuleInfo;
use crate::store::{InstanceId, StoreOpaque};
use crate::{GlobalType, MemoryType, TableType, Val};
use anyhow::Result;
use std::any::Any;
use std::sync::Arc;
use wasmtime_environ::{GlobalIndex, MemoryIndex, Module, TableIndex};
use wasmtime_runtime::{
Imports, InstanceAllocationRequest, InstanceAllocator, OnDemandInstanceAllocator, SharedMemory,
StorePtr, VMFunctionImport, VMSharedSignatureIndex,
};
fn create_handle(
module: Module,
store: &mut StoreOpaque,
host_state: Box<dyn Any + Send + Sync>,
func_imports: &[VMFunctionImport],
one_signature: Option<VMSharedSignatureIndex>,
) -> Result<InstanceId> {
let mut imports = Imports::default();
imports.functions = func_imports;
unsafe {
let config = store.engine().config();
let module = Arc::new(module);
let runtime_info =
&BareModuleInfo::maybe_imported_func(module, one_signature).into_traitobj();
let handle = OnDemandInstanceAllocator::new(config.mem_creator.clone(), 0).allocate(
InstanceAllocationRequest {
imports,
host_state,
store: StorePtr::new(store.traitobj()),
runtime_info,
},
)?;
Ok(store.add_instance(handle, true))
}
}
pub fn generate_global_export(
store: &mut StoreOpaque,
gt: &GlobalType,
val: Val,
) -> Result<wasmtime_runtime::ExportGlobal> {
let instance = create_global(store, gt, val)?;
Ok(store
.instance_mut(instance)
.get_exported_global(GlobalIndex::from_u32(0)))
}
pub fn generate_memory_export(
store: &mut StoreOpaque,
m: &MemoryType,
preallocation: Option<&SharedMemory>,
) -> Result<wasmtime_runtime::ExportMemory> {
let instance = create_memory(store, m, preallocation)?;
Ok(store
.instance_mut(instance)
.get_exported_memory(MemoryIndex::from_u32(0)))
}
pub fn generate_table_export(
store: &mut StoreOpaque,
t: &TableType,
) -> Result<wasmtime_runtime::ExportTable> {
let instance = create_table(store, t)?;
Ok(store
.instance_mut(instance)
.get_exported_table(TableIndex::from_u32(0)))
}