Crate sp_wasm_interface

source ·
Expand description

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

Re-exports

  • pub use wasmtime;
  • pub use anyhow;

Macros

Structs

  • ExtendedHostFunctions
    A wrapper which merges two sets of host functions, and allows the second set to override the host functions from the first set.
  • Pointer
    Type to represent a pointer in wasm at the host.
  • Signature
    The Signature of a function

Enums

  • 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.

Traits

  • 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.

Type Definitions

  • Result
    Result type used by traits in this crate.
  • WordSize
    The word size used in wasm. Normally known as usize in Rust.