cerc-io/solidity
11
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #3364 from ethereum/revertWithReason

Browse Source 
Revert with reason
This commit is contained in:
chriseth
2018-04-12 21:01:08 +02:00
committed by GitHub
parent 44416d1ac6 966367305a
commit 7054defdd6
27 changed files with 487 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/libsolidity/SolidityEndToEndTest.cpp
+208
View File
@@ -10458,6 +10458,214 @@ BOOST_AUTO_TEST_CASE(revert)
ABI_CHECK(callContractFunction("a()"), encodeArgs(u256(42)));
}
BOOST_AUTO_TEST_CASE(revert_with_cause)
{
char const* sourceCode = R"(
contract D {
function f() public {
revert("test123");
}
function g() public {
revert("test1234567890123456789012345678901234567890");
}
}
contract C {
D d = new D();
function forward(address target, bytes data) internal returns (bool success, bytes retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
function g() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bool const haveReturndata = dev::test::Options::get().evmVersion().supportsReturndata();
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "test123") + bytes(28, 0) : bytes());
ABI_CHECK(callContractFunction("g()"), haveReturndata ? encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0): bytes());
}
BOOST_AUTO_TEST_CASE(require_with_message)
{
char const* sourceCode = R"(
contract D {
bool flag = false;
string storageError = "abc";
function f(uint x) public {
require(x > 7, "failed");
}
function g() public {
// As a side-effect of internalFun, the flag will be set to true
// (even if the condition is true),
// but it will only throw in the next evaluation.
bool flagCopy = flag;
require(flagCopy == false, internalFun());
}
function internalFun() returns (string) {
flag = true;
return "only on second run";
}
function h() public {
require(false, storageError);
}
}
contract C {
D d = new D();
function forward(address target, bytes data) internal returns (bool success, bytes retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f(uint x) public returns (bool, bytes) {
return forward(address(d), msg.data);
}
function g() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
function h() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bool const haveReturndata = dev::test::Options::get().evmVersion().supportsReturndata();
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f(uint256)", 8), haveReturndata ? encodeArgs(1, 0x40, 0) : bytes());
ABI_CHECK(callContractFunction("f(uint256)", 5), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 6, "failed") + bytes(28, 0) : bytes());
ABI_CHECK(callContractFunction("g()"), haveReturndata ? encodeArgs(1, 0x40, 0) : bytes());
ABI_CHECK(callContractFunction("g()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 18, "only on second run") + bytes(28, 0) : bytes());
ABI_CHECK(callContractFunction("h()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 3, "abc") + bytes(28, 0): bytes());
}
BOOST_AUTO_TEST_CASE(bubble_up_error_messages)
{
char const* sourceCode = R"(
contract D {
function f() public {
revert("message");
}
function g() public {
this.f();
}
}
contract C {
D d = new D();
function forward(address target, bytes data) internal returns (bool success, bytes retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
function g() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bool const haveReturndata = dev::test::Options::get().evmVersion().supportsReturndata();
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0) : bytes());
ABI_CHECK(callContractFunction("g()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0) : bytes());
}
BOOST_AUTO_TEST_CASE(bubble_up_error_messages_through_transfer)
{
char const* sourceCode = R"(
contract D {
function() public payable {
revert("message");
}
function f() public {
this.transfer(0);
}
}
contract C {
D d = new D();
function forward(address target, bytes data) internal returns (bool success, bytes retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bool const haveReturndata = dev::test::Options::get().evmVersion().supportsReturndata();
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0) : bytes());
}
BOOST_AUTO_TEST_CASE(bubble_up_error_messages_through_create)
{
char const* sourceCode = R"(
contract E {
function E() {
revert("message");
}
}
contract D {
function f() public {
var x = new E();
}
}
contract C {
D d = new D();
function forward(address target, bytes data) internal returns (bool success, bytes retval) {
uint retsize;
assembly {
success := call(not(0), target, 0, add(data, 0x20), mload(data), 0, 0)
retsize := returndatasize()
}
retval = new bytes(retsize);
assembly {
returndatacopy(add(retval, 0x20), 0, returndatasize())
}
}
function f() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
}
)";
compileAndRun(sourceCode, 0, "C");
bool const haveReturndata = dev::test::Options::get().evmVersion().supportsReturndata();
bytes const errorSignature = bytes{0x08, 0xc3, 0x79, 0xa0};
ABI_CHECK(callContractFunction("f()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 7, "message") + bytes(28, 0) : bytes());
}
BOOST_AUTO_TEST_CASE(negative_stack_height)
{
// This code was causing negative stack height during code generation