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Merge pull request #4659 from ethereum/abiv2-fixedbytes

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FixedBytes(0) is invalid, do not check for it in ABIEncoderV2
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chriseth 2018-08-06 17:47:23 +02:00 committed by GitHub
commit 1858843908
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2 changed files with 40 additions and 1 deletions
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3
libsolidity/codegen/ABIFunctions.cpp
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@ -228,7 +228,8 @@ string ABIFunctions::cleanupFunction(Type const& _type, bool _revertOnFailure)
if (type.numBytes() == 32)
templ("body", "cleaned := value");
else if (type.numBytes() == 0)
templ("body", "cleaned := 0");
// This is disallowed in the type system.
solAssert(false, "");
else
{
size_t numBits = type.numBytes() * 8;

38
test/libsolidity/SolidityEndToEndTest.cpp
View File

@ -12489,6 +12489,44 @@ BOOST_AUTO_TEST_CASE(abi_encode_with_signaturev2)
ABI_CHECK(callContractFunction("f4()"), expectation);
}
BOOST_AUTO_TEST_CASE(abi_encode_empty_string)
{
char const* sourceCode = R"(
// Tests that this will not end up using a "bytes0" type
// (which would assert)
contract C {
function f() public pure returns (bytes memory, bytes memory) {
return (abi.encode(""), abi.encodePacked(""));
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f()"), encodeArgs(
0x40, 0xc0,
0x60, 0x20, 0x00, 0x00,
0x00
));
}
BOOST_AUTO_TEST_CASE(abi_encode_empty_string_v2)
{
char const* sourceCode = R"(
// Tests that this will not end up using a "bytes0" type
// (which would assert)
pragma experimental ABIEncoderV2;
contract C {
function f() public pure returns (bytes memory, bytes memory) {
return (abi.encode(""), abi.encodePacked(""));
}
}
)";
compileAndRun(sourceCode, 0, "C");
ABI_CHECK(callContractFunction("f()"), encodeArgs(
0x40, 0xa0,
0x40, 0x20, 0x00,
0x00
));
}
BOOST_AUTO_TEST_CASE(abi_encode_call)
{
char const* sourceCode = R"T(