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LaunchDarkly SDK for Erlang

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launchdarkly_server_sdk src ldclient_yaml_mapper.erl
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src/ldclient_yaml_mapper.erl 

%%-------------------------------------------------------------------

%% @doc Utility to convert yamerl output into a map.

%% @private

%% @end

%%-------------------------------------------------------------------



-module(ldclient_yaml_mapper).



%% API

-export([to_map_docs/2]).



-spec to_map_docs(DocsToMap :: list(), Results :: list()) ->

    list().

to_map_docs([Head | Rest], Results) ->

    Map = to_map(Head),

    to_map_docs(Rest, [Map | Results]);

to_map_docs([], Results) ->

    Results.



%%===================================================================

%% Internal functions

%%===================================================================



to_map({yamerl_doc, Doc}) ->

    to_map(Doc);

to_map({yamerl_seq, yamerl_node_seq, _Tag, _Loc, Seq, _N}) ->

    [to_map(X) || X <- Seq];

to_map({yamerl_map, yamerl_node_map, _Tag, _Loc, MapTuples}) ->

    tuples_to_map(MapTuples, #{});

to_map({yamerl_str, yamerl_node_str, _Tag, _Loc, CharList}) ->

    list_to_binary(CharList);

to_map({yamerl_int, yamerl_node_int, _Tag, _Loc, Number}) ->

    Number;

to_map({yamerl_bool, yamerl_node_bool, _Tag, _Loc, Bool}) ->

    Bool.



tuples_to_map([], Map) ->

    Map;

tuples_to_map([{Key, Val} | Rest], Map) ->

    {yamerl_str, yamerl_node_str, _, _, Name} = Key,

    tuples_to_map(Rest, maps:put(list_to_binary(Name), to_map(Val), Map)).