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License: MIT License
Typespec based data loader for Elixir
License: MIT License
Can we generate the type loaders functions at compile time?
No more lazy generation at runtime (drop ETS caching) and no more strip_beams: false
to take the types metadata in the prod release.
defmodule
use DataSpec # To use DataSpec.load on this module's types
# ...
end
Map the Erlang Type Abstract Format to an Intermediate structured schema representation.
Use the schema to build the DataSpecs loader
Improve the error "stack" trace.
defmodule Test.DataSpecs.A do
@moduledoc false
use DataSpecs
@enforce_keys [:f_1]
defstruct [:f_1]
@type t :: %__MODULE__{
f_1: %{a: [atom() | {integer(), term()}]},
}
end
The following incorrect value:
%Test.DataSpecs.A{f_1: %{a: [:a, {:"BAD TYPE HERE", 1}]}}
|> Test.DataSpecs.A.load()
produce this error:
{:error,
[
"can't convert %Test.DataSpecs.A{f_1: %{a: [:a, {:\"BAD TYPE HERE\", 1}]}} to a %Test.DataSpecs.A{} struct",
["can't convert %Test.DataSpecs.A{f_1: %{a: [:a, {:\"BAD TYPE HERE\", 1}]}} to a map, bad k/v pairs: %{f_1: %{a: [:a, {:\"BAD TYPE HERE\", 1}]}}",
[]]
]}
While correct a bit cryptic. Should be humanized!
Ideally should report something like:
%Test.DataSpecs.A{f_1: %{a: [:a, {:"BAD TYPE HERE", 1}]}}
^
Expected an integer(), got an atom()
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