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DSL for WebAssembly
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lib/orb/to_wat.ex
defprotocol Orb.ToWat do
@doc "Protocol for converting to WebAssembly text format (.wat)"
def to_wat(data, indent)
end
# TODO: remove this.
# A lot of the instruction are implemented as tuples.
# They might all become structs in the future, which means this could be removed.
defimpl Orb.ToWat, for: Tuple do
def to_wat(tuple, indent) do
Orb.ToWat.Instructions.do_wat(tuple, indent)
end
end
defmodule Orb.ToWat.Helpers do
alias Orb.CustomType
def do_type(type) do
case type do
:i64 ->
"i64"
:i32 ->
"i32"
:f64 ->
"f64"
:f32 ->
"f32"
# e.g. {I32, I32}
tuple when is_tuple(tuple) ->
tuple |> Tuple.to_list() |> Enum.map(&do_type/1) |> Enum.join(" ")
type ->
CustomType.resolve!(type) |> to_string()
end
end
end