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Add decoding function

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Thomas Arts 2019-06-18 12:22:46 +02:00
parent e3f843fd91
commit 9840b22546
1 changed files with 9 additions and 0 deletions
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9
src/aeb_fate_abi.erl
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@ -10,6 +10,7 @@
-module(aeb_fate_abi).
-export([ create_calldata/2
, decode_calldata/2
, get_function_hash_from_calldata/1
, get_function_name_from_function_hash/2
, get_function_type_from_function_hash/2 ]).
@ -27,6 +28,14 @@ create_calldata(FunName, Args) ->
aeb_fate_data:make_tuple({FunctionId,
aeb_fate_data:make_tuple(list_to_tuple(Args))}))}.
-spec decode_calldata(list(), binary()) -> {ok, term()} | {error, term()}.
decode_calldata(FunName, Calldata) ->
FunctionId = aeb_fate_code:symbol_identifier(list_to_binary(FunName)),
case ?FATE_TUPLE_ELEMENTS(aeb_fate_encoding:deserialize(Calldata)) of
[FunctionId, FateArgs] -> {ok, ?FATE_TUPLE_ELEMENTS(FateArgs)};
_ -> {error, decode_error}
end.
-spec get_function_name_from_function_hash(binary(), aeb_fate_code:fcode()) ->
{ok, term()} | {error, term()}.
get_function_name_from_function_hash(<<SymbolHash:4/binary, _:28/binary>>, FateCode) ->