Orb state machine DSL

Mix.install([{:orb, "~> 0.0.18"}, :orb_wasmtime])

Section

defmodule BumpAllocator do
  use Orb

  I32.global(
    bump_offset: 0xFF,
    bump_mark: 0
  )

  Memory.pages(1)

  defwi bump_alloc(size: I32), I32.UnsafePointer,
    ptr: I32.UnsafePointer do
    ptr = @bump_offset
    @bump_offset = @bump_offset + size
    ptr
  end
end

defmodule MyModule do
  use Orb

  Memory.pages(1)
  Orb.include(BumpAllocator)

  defw example(), ptr: I32.UnsafePointer do
    ptr = BumpAllocator.bump_alloc(42)
    # Do something with ptr
  end
end

defmodule MyModule do
  use Orb
  use BumpAllocator

  defw example(), ptr: I32.UnsafePointer do
    ptr = bump_alloc(42)
    # Do something with ptr
  end
end