Packages
orb
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retired
0.0.11
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DSL for WebAssembly
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lib/orb/global.ex
defmodule Orb.Global do
@moduledoc false
defstruct [:name, :type, :initial_value, :mutability, :exported]
def new(:i32 = type, name, mutability, exported, value)
when is_atom(name) and
mutability in ~w[readonly mutable]a and
exported in ~w[internal exported]a do
%__MODULE__{
name: name,
type: type,
initial_value: value,
mutability: mutability,
exported: exported == :exported
}
end
defimpl Orb.ToWat do
def to_wat(
%Orb.Global{
name: name,
type: type,
initial_value: initial_value,
mutability: mutability,
exported: exported
},
indent
) do
[
indent,
"(global ",
case exported do
false -> [?$, to_string(name)]
true -> [?$, to_string(name), ~S{ (export "}, to_string(name), ~S{")}]
end,
" ",
case mutability do
:readonly -> to_string(type)
:mutable -> ["(mut ", to_string(type), ?)]
end,
" ",
Orb.ToWat.to_wat(initial_value, ""),
")\n"
]
end
end
defmodule DSL do
@moduledoc """
Adds @global_name support
"""
import Kernel, except: [@: 1]
defmacro @{name, meta, _args} do
{:global_get, meta, [name]}
end
end
end