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Add instructions for arbitrary sized byte arrays (#114)

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* Encode/decode bytes()/{bytes, any} as bytes(-1)

* Add 5 new bytes instructions

* reorder instructions and clarify some operations
This commit is contained in:
Hans Svensson 2023-05-27 16:13:20 +02:00 committed by GitHub
parent 0f7529b26a
commit b8d593e351
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 26 additions and 15 deletions
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10
src/aeb_fate_encoding.erl
View File

@ -238,6 +238,8 @@ serialize_type({tuple, Ts}) ->
N when N =< 255 ->
[?TYPE_TUPLE, N | [serialize_type(T) || T <- Ts]]
end;
serialize_type({bytes, any}) ->
[?TYPE_BYTES | binary_to_list(serialize_integer(-1))];
serialize_type({bytes, N}) when 0 =< N ->
[?TYPE_BYTES | binary_to_list(serialize_integer(N))];
serialize_type(address) -> [?TYPE_OBJECT, ?OTYPE_ADDRESS];
@ -270,8 +272,12 @@ deserialize_type(<<?TYPE_TUPLE, N, Rest/binary>>) ->
{{tuple, Ts}, Rest2};
deserialize_type(<<?TYPE_BYTES, Rest/binary>>) ->
{N, Rest2} = deserialize_one(Rest),
true = is_integer(N) andalso N >= 0,
{{bytes, N}, Rest2};
true = is_integer(N),
if N == -1 ->
{{bytes, any}, Rest2};
0 =< N ->
{{bytes, N}, Rest2}
end;
deserialize_type(<<?TYPE_OBJECT, ObjectType, Rest/binary>>) ->
case ObjectType of
?OTYPE_ADDRESS -> {address, Rest};

31
src/aeb_fate_generate_ops.erl
View File

@ -232,20 +232,25 @@ ops_defs() ->
, { 'FEE', 16#a7, false, true, true, ?GAS(10), [a], fee, {}, integer, "Arg0 := The fee for the current call tx."}
, { 'ADDRESS_TO_BYTES', 16#a8, false, true, true, ?GAS(10), [a, a], addr_to_bytes, {address}, bytes, "Arg0 := the byte representation of the address"}
, { 'POSEIDON', 16#a9, false, true, true, ?GAS(6000), [a, a, a], poseidon, {integer, integer}, integer, "Arg0 := the Poseidon hash of Arg1 and Arg2 - all integers in the BLS12-381 scalar field"}
, { 'MULMOD', 16#aa, false, true, true, ?GAS(10), [a, a, a, a], mulmod, {integer, integer, integer}, integer, "Arg0 := (Arg1 * Arg2) mod Arg3"}
, { 'BAND', 16#ab, false, true, true, ?GAS(10), [a, a, a], bin_and, {integer, integer}, integer, "Arg0 := Arg1 & Arg2"}
, { 'BOR', 16#ac, false, true, true, ?GAS(10), [a, a, a], bin_or, {integer, integer}, integer, "Arg0 := Arg1 | Arg2"}
, { 'BXOR', 16#ad, false, true, true, ?GAS(10), [a, a, a], bin_xor, {integer, integer}, integer, "Arg0 := Arg1 ^ Arg2"}
, { 'BNOT', 16#ae, false, true, true, ?GAS(10), [a, a], bin_not, {integer}, integer, "Arg0 := ~Arg1"}
, { 'BSL', 16#af, false, true, true, ?GAS(10), [a, a, a], bin_sl, {integer, integer}, integer, "Arg0 := Arg1 << Arg2"}
, { 'BSR', 16#b0, false, true, true, ?GAS(10), [a, a, a], bin_sr, {integer, integer}, integer, "Arg0 := Arg1 >> Arg2"}
, { 'ADDRESS_TO_BYTES', 16#a8, false, true, true, ?GAS(10), [a, a], addr_to_bytes, {address}, bytes, "Arg0 := the byte representation of the address"}
, { 'POSEIDON', 16#a9, false, true, true, ?GAS(6000), [a, a, a], poseidon, {integer, integer}, integer, "Arg0 := the Poseidon hash of Arg1 and Arg2 - all integers in the BLS12-381 scalar field"}
, { 'MULMOD', 16#aa, false, true, true, ?GAS(10), [a, a, a, a], mulmod, {integer, integer, integer}, integer, "Arg0 := (Arg1 * Arg2) mod Arg3"}
, { 'BAND', 16#ab, false, true, true, ?GAS(10), [a, a, a], bin_and, {integer, integer}, integer, "Arg0 := Arg1 & Arg2"}
, { 'BOR', 16#ac, false, true, true, ?GAS(10), [a, a, a], bin_or, {integer, integer}, integer, "Arg0 := Arg1 | Arg2"}
, { 'BXOR', 16#ad, false, true, true, ?GAS(10), [a, a, a], bin_xor, {integer, integer}, integer, "Arg0 := Arg1 ^ Arg2"}
, { 'BNOT', 16#ae, false, true, true, ?GAS(10), [a, a], bin_not, {integer}, integer, "Arg0 := ~Arg1"}
, { 'BSL', 16#af, false, true, true, ?GAS(10), [a, a, a], bin_sl, {integer, integer}, integer, "Arg0 := Arg1 << Arg2"}
, { 'BSR', 16#b0, false, true, true, ?GAS(10), [a, a, a], bin_sr, {integer, integer}, integer, "Arg0 := Arg1 >> Arg2"}
, { 'BYTES_SPLIT_ANY', 16#b1, false, true, true, ?GAS(10), [a, a, a], bytes_split_any, {bytes, integer}, variant, "Arg0 := bytes_split_any(Arg1, Arg2), where a positive Arg2 is the length of the first chunk, and a negative Arg2 is the length of the second chunk. Returns None if byte array is not long enough."}
, { 'BYTES_SIZE', 16#b2, false, true, true, ?GAS(10), [a, a], bytes_size, {bytes}, integer, "Arg0 := bytes_size(Arg1), returns the number of bytes in the byte array."}
, { 'BYTES_TO_FIXED_SIZE', 16#b3, false, true, true, ?GAS(10), [a, a, a], bytes_to_fixed_size, {bytes, integer}, variant, "Arg0 := bytes_to_fixed_size(Arg1, Arg2), returns Some(Arg1') if byte_size(Arg1) == Arg2, None otherwise. The type of Arg1' is bytes(Arg2) but the value is unchanged"}
, { 'INT_TO_BYTES', 16#b4, false, true, true, ?GAS(10), [a, a, a], int_to_bytes, {integer, integer}, bytes, "Arg0 := turn integer Arg1 into a byte array (big endian) length Arg2 (truncating if not fit)."}
, { 'STR_TO_BYTES', 16#b5, false, true, true, ?GAS(10), [a, a], str_to_bytes, {integer}, bytes, "Arg0 := turn string Arg1 into the corresponding byte array."}
, { 'DBG_LOC', 16#b1, false, true, true, ?GAS(0), [a, a], dbg_loc, {string, integer}, none, "Debug Op: Execution location. Args = {file_name, line_num}" }
, { 'DBG_DEF', 16#b2, false, true, true, ?GAS(0), [a, a], dbg_def, {string, any}, none, "Debug Op: Define a variable. Args = {var_name, register}" }
, { 'DBG_UNDEF', 16#b3, false, true, true, ?GAS(0), [a, a], dbg_undef, {string, any}, none, "Debug Op: Undefine a variable. Args = {var_name, register}" }
, { 'DBG_CONTRACT', 16#b4, false, true, true, ?GAS(0), [a], dbg_contract, {string}, none, "Debug Op: Name the current contract. Args: {contract_name}"}
, { 'DBG_LOC', 16#b6, false, true, true, ?GAS(0), [a, a], dbg_loc, {string, integer}, none, "Debug Op: Execution location. Args = {file_name, line_num}" }
, { 'DBG_DEF', 16#b7, false, true, true, ?GAS(0), [a, a], dbg_def, {string, any}, none, "Debug Op: Define a variable. Args = {var_name, register}" }
, { 'DBG_UNDEF', 16#b8, false, true, true, ?GAS(0), [a, a], dbg_undef, {string, any}, none, "Debug Op: Undefine a variable. Args = {var_name, register}" }
, { 'DBG_CONTRACT', 16#b9, false, true, true, ?GAS(0), [a], dbg_contract, {string}, none, "Debug Op: Name the current contract. Args: {contract_name}"}
, { 'DEACTIVATE', 16#fa, false, true, true, ?GAS(10), [], deactivate, {}, none, "Mark the current contract for deactivation."}
, { 'ABORT', 16#fb, true, true, true, ?GAS(10), [a], abort, {string}, none, "Abort execution (dont use all gas) with error message in Arg0."}