Crate gp_wasm_interface

Expand description

Types and traits for interfacing between the host and the wasm runtime.

Re-exports§

Caller: A structure representing the caller’s context when creating a function via Func::wrap.
ExtendedHostFunctions: A wrapper which merges two sets of host functions, and allows the second set to override the host functions from the first set.
FunctionContextToken
HostState: The state required to construct a HostContext context. The context only lasts for one host call, whereas the state is maintained for the duration of a Wasm runtime call, which may make many different host calls that must share state.
MemoryWrapper: Wrapper around [Memory] that implements sp_allocator::Memory.
Pointer: Type to represent a pointer in wasm at the host.
Signature: The Signature of a function
StoreData

ReturnValue: Typed value that can be returned from a function.
Value: Values supported by Substrate on the boundary between host/Wasm.
ValueType: Value types supported by Substrate on the boundary between host/Wasm.

Function: Something that provides a function implementation on the host for a wasm function.
FunctionContext: Context used by Function to interact with the allocator and the memory of the wasm instance.
HostFunctionRegistry: A trait used to statically register host callbacks with the WASM executor, so that they call be called from within the runtime with minimal overhead.
HostFunctions: Something that provides implementations for host functions.
IntoValue: Something that can be converted into a wasm compatible Value.
MaybeRefUnwindSafe: A trait that requires RefUnwindSafe when feature = std.
PointerType: Something that can be wrapped in a wasm Pointer.
TryFromValue: Something that can may be created from a wasm Value.
WasmTy: A trait for types directly usable at the WASM FFI boundary without any conversion at all.