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[Sol - Yul] Add support for ABIDecode.

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This commit is contained in:
Alexander Arlt 2020-05-25 06:40:43 -05:00
parent 50b200a5d5
commit 118cb13476
11 changed files with 62 additions and 1 deletions
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40
libsolidity/codegen/ir/IRGeneratorForStatements.cpp
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@ -884,6 +884,45 @@ void IRGeneratorForStatements::endVisit(FunctionCall const& _functionCall)
m_code << templ.render();
break;
}
case FunctionType::Kind::ABIDecode:
{
Whiskers templ(R"(
<?+retVars>let <retVars> := </+retVars> <abiDecode>(<offset>, add(<offset>, <length>))
)");
TypePointer firstArgType = arguments.front()->annotation().type;
TypePointers targetTypes;
if (TupleType const* targetTupleType = dynamic_cast<TupleType const*>(_functionCall.annotation().type))
targetTypes = targetTupleType->components();
else
targetTypes = TypePointers{_functionCall.annotation().type};
if (
auto referenceType = dynamic_cast<ReferenceType const*>(firstArgType);
referenceType && referenceType->dataStoredIn(DataLocation::CallData)
)
{
solAssert(referenceType->isImplicitlyConvertibleTo(*TypeProvider::bytesCalldata()), "");
IRVariable var = convert(*arguments[0], *TypeProvider::bytesCalldata());
templ("abiDecode", m_context.abiFunctions().tupleDecoder(targetTypes, false));
templ("offset", var.part("offset").name());
templ("length", var.part("length").name());
}
else
{
IRVariable var = convert(*arguments[0], *TypeProvider::bytesMemory());
templ("abiDecode", m_context.abiFunctions().tupleDecoder(targetTypes, true));
templ("offset", "add(" + var.part("mpos").name() + ", 32)");
templ("length",
m_utils.arrayLengthFunction(*TypeProvider::bytesMemory()) + "(" + var.part("mpos").name() + ")"
);
}
templ("retVars", IRVariable(_functionCall).commaSeparatedList());
m_code << templ.render();
break;
}
case FunctionType::Kind::Revert:
{
solAssert(arguments.size() == parameterTypes.size(), "");
@ -1369,7 +1408,6 @@ void IRGeneratorForStatements::endVisit(MemberAccess const& _memberAccess)
else if (member == "data")
{
IRVariable var(_memberAccess);
declare(var);
define(var.part("offset")) << "0\n";
define(var.part("length")) << "calldatasize()\n";
}

2
test/libsolidity/semanticTests/abiEncoderV1/abi_decode_dynamic_array.sol
View File

@ -4,5 +4,7 @@ contract C {
}
}
// ====
// compileViaYul: also
// ----
// f(bytes): 0x20, 0xc0, 0x20, 0x4, 0x3, 0x4, 0x5, 0x6 -> 0x20, 0x4, 0x3, 0x4, 0x5, 0x6

2
test/libsolidity/semanticTests/abiEncoderV1/abi_decode_static_array.sol
View File

@ -8,5 +8,7 @@ contract C {
}
}
// ====
// compileViaYul: also
// ----
// f(bytes): 0x20, 0xc0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6 -> 1, 2, 3, 4, 5, 6

2
test/libsolidity/semanticTests/abiEncoderV1/abi_decode_static_array_v2.sol
View File

@ -11,5 +11,7 @@ contract C {
}
}
// ====
// compileViaYul: also
// ----
// f(bytes): 0x20, 0xc0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6 -> 1, 2, 3, 4, 5, 6

2
test/libsolidity/semanticTests/abiEncoderV1/abi_decode_trivial.sol
View File

@ -4,5 +4,7 @@ contract C {
}
}
// ====
// compileViaYul: also
// ----
// f(bytes): 0x20, 0x20, 0x21 -> 33

2
test/libsolidity/semanticTests/abiEncoderV1/abi_encode_decode_simple.sol
View File

@ -5,5 +5,7 @@ contract C {
}
}
// ====
// compileViaYul: also
// ----
// f() -> 0x21, 0x40, 0x7, "abcdefg"

3
test/libsolidity/semanticTests/abiEncoderV1/decode_slice.sol
View File

@ -5,5 +5,8 @@ contract C {
f = abi.decode(msg.data[4 + 32 : 4 + 32 + 32], (uint256));
}
}
// ====
// compileViaYul: also
// ----
// f(uint256,uint256): 42, 23 -> 42, 23, 42, 23

3
test/libsolidity/semanticTests/abiEncoderV1/dynamic_memory_copy.sol
View File

@ -18,6 +18,9 @@ contract C {
}
}
}
// ====
// compileViaYul: also
// ----
// test(bytes): 0x20, 0x80, 0x40, 0x60, 0, 0 -> false, false
// test(bytes): 0x20, 0xC0, 0x40, 0x80, 1, 0x42, 1, 0x42 -> false, false

3
test/libsolidity/semanticTests/abiencodedecode/abi_decode_calldata.sol
View File

@ -7,5 +7,8 @@ contract C {
return abi.decode(data, (uint256, bytes));
}
}
// ====
// compileViaYul: also
// ----
// f(bytes): 0x20, 0x80, 0x21, 0x40, 0x7, "abcdefg" -> 0x21, 0x40, 0x7, "abcdefg"

3
test/libsolidity/semanticTests/abiencodedecode/abi_decode_simple.sol
View File

@ -3,5 +3,8 @@ contract C {
return abi.decode(data, (uint256, bytes));
}
}
// ====
// compileViaYul: also
// ----
// f(bytes): 0x20, 0x80, 0x21, 0x40, 0x7, "abcdefg" -> 0x21, 0x40, 0x7, "abcdefg"

1
test/libsolidity/semanticTests/abiencodedecode/abi_decode_simple_storage.sol
View File

@ -6,5 +6,6 @@ contract C {
return abi.decode(data, (uint256, bytes));
}
}
// ----
// f(bytes): 0x20, 0x80, 0x21, 0x40, 0x7, "abcdefg" -> 0x21, 0x40, 0x7, "abcdefg"