Module pass_by

Provides host <-> runtime FFI marshalling strategy newtype wrappers for defining runtime interfaces.

Structs

• AllocateAndReturnByCodec
  (DEPRECATED) Return T into the runtime using the SCALE codec.
• AllocateAndReturnFatPointer
  (DEPRECATED) Return T as a blob of bytes into the runtime.
• AllocateAndReturnPointer
  (DEPRECATED) Return T as a blob of bytes into the runtime.
• PassAs
  Pass T through the FFI boundary by first converting it to U in the runtime, and then converting it back to T on the host’s side.
• PassFatPointerAndDecode
  Pass a T into the host using the SCALE codec.
• PassFatPointerAndDecodeSlice
  Pass a &[T] into the host using the SCALE codec.
• PassFatPointerAndRead
  Pass a value into the host by a fat pointer.
• PassFatPointerAndReadWrite
  Pass a value into the host by a fat pointer, writing it back after the host call ends.
• PassPointerAndRead
  Pass a value into the host by a thin pointer.
• PassPointerAndReadCopy
  Pass a value into the host by a thin pointer.
• PassPointerAndWrite
  Pass a pointer into the host and write to it after the host call ends.
• ReturnAs
  Return T through the FFI boundary by first converting it to U on the host’s side, and then converting it back to T in the runtime.