defmodule Lab do
def convert_key_strings_to_existing_atoms(keys, raw_data) do
try do
keys
|> String.to_existing_atom()
|> IO.inspect(label: "line 1")
rescue
glitch ->
glitch
|> IO.inspect(label: "line 7")
keys
|> Enum.map(&String.to_atom/1)
|> IO.inspect(label: "line 8")
keys
|> Enum.map(&String.to_existing_atom/1)
|> IO.inspect(label: "line 9")
IO.puts("\n \n")
convert_key_strings_to_existing_atoms()
end
end
def convert_key_strings_to_existing_atoms() do
raw_data = %{
"items" => [
%{
"allowed_amount" => %{"max" => 10, "min" => 0.001},
"fees" => %{"flat" => 0.001, "rate" => 0},
"id" => "Countach",
"status" => "inactive"
},
%{
"allowed_amount" => %{"max" => 10000, "min" => 0.001},
"fees" => %{"flat" => 0.5, "rate" => 0},
"id" => "Revuelto",
"status" => "active"
}
],
"page_info" => %{"has_next_page" => false, "last_cursor" => nil},
"type" => "list"
}
keys = Map.keys(raw_data)
convert_key_strings_to_existing_atoms(keys, raw_data)
end
end
Results:
Interactive Elixir (1.13.4) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> Lab.convert_key_strings_to_existing_atoms
line 7: %ArgumentError{
message: "errors were found at the given arguments:\n\n * 1st argument: not a binary\n"
}
line 8: [:items, :page_info, :type]
line 9: [:items, :page_info, :type]
line 7: %ArgumentError{
message: "errors were found at the given arguments:\n\n * 1st argument: not a binary\n"
}
line 8: [:items, :page_info, :type]
line 9: [:items, :page_info, :type]
line 7: %ArgumentError{
message: "errors were found at the given arguments:\n\n * 1st argument: not a binary\n"
}
line 8: [:items, :page_info, :type]
line 9: [:items, :page_info, :type]
line 7: %ArgumentError{
message: "errors were found at the given arguments:\n\n * 1st argument: not a binary\n"
}
line 8: [:items, :page_info, :type]
line 9: [:items, :page_info, :type]
Why does the try clause in convert_key_strings_to_existing_atoms/0 consistently fail, leading to an infinite loop, given that atoms can only be generated once?
