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-rw-r--r--Changelog.md2
-rw-r--r--libsolidity/codegen/CompilerUtils.cpp1
-rw-r--r--libsolidity/codegen/ExpressionCompiler.cpp4
-rw-r--r--test/libsolidity/SolidityEndToEndTest.cpp40
4 files changed, 45 insertions, 2 deletions
diff --git a/Changelog.md b/Changelog.md
index 9004dc29..94613589 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -12,10 +12,10 @@ Features:
* Type Checker: Warn about wildcard tuple assignments (this will turn into an error with version 0.5.0).
Bugfixes:
+ * Code Generator: Fix ``revert`` with reason coming from a state or local string variable.
* Type Checker: Show proper error when trying to ``emit`` a non-event.
* Type Checker: Warn about empty tuple components (this will turn into an error with version 0.5.0).
-
### 0.4.23 (2018-04-19)
Features:
diff --git a/libsolidity/codegen/CompilerUtils.cpp b/libsolidity/codegen/CompilerUtils.cpp
index a39e799c..d9f17263 100644
--- a/libsolidity/codegen/CompilerUtils.cpp
+++ b/libsolidity/codegen/CompilerUtils.cpp
@@ -89,7 +89,6 @@ void CompilerUtils::revertWithStringData(Type const& _argumentType)
abiEncode({_argumentType.shared_from_this()}, {make_shared<ArrayType>(DataLocation::Memory, true)});
toSizeAfterFreeMemoryPointer();
m_context << Instruction::REVERT;
- m_context.adjustStackOffset(_argumentType.sizeOnStack());
}
unsigned CompilerUtils::loadFromMemory(
diff --git a/libsolidity/codegen/ExpressionCompiler.cpp b/libsolidity/codegen/ExpressionCompiler.cpp
index a8222e21..4bcc1fa9 100644
--- a/libsolidity/codegen/ExpressionCompiler.cpp
+++ b/libsolidity/codegen/ExpressionCompiler.cpp
@@ -933,7 +933,11 @@ bool ExpressionCompiler::visit(FunctionCall const& _functionCall)
// condition was not met, flag an error
m_context.appendInvalid();
else if (arguments.size() > 1)
+ {
utils().revertWithStringData(*arguments.at(1)->annotation().type);
+ // Here, the argument is consumed, but in the other branch, it is still there.
+ m_context.adjustStackOffset(arguments.at(1)->annotation().type->sizeOnStack());
+ }
else
m_context.appendRevert();
// the success branch
diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp
index 3a4a2dad..dd82a05c 100644
--- a/test/libsolidity/SolidityEndToEndTest.cpp
+++ b/test/libsolidity/SolidityEndToEndTest.cpp
@@ -10660,12 +10660,24 @@ BOOST_AUTO_TEST_CASE(revert_with_cause)
{
char const* sourceCode = R"(
contract D {
+ string constant msg1 = "test1234567890123456789012345678901234567890";
+ string msg2 = "test1234567890123456789012345678901234567890";
function f() public {
revert("test123");
}
function g() public {
revert("test1234567890123456789012345678901234567890");
}
+ function h() public {
+ revert(msg1);
+ }
+ function i() public {
+ revert(msg2);
+ }
+ function j() public {
+ string memory msg3 = "test1234567890123456789012345678901234567890";
+ revert(msg3);
+ }
}
contract C {
D d = new D();
@@ -10686,6 +10698,15 @@ BOOST_AUTO_TEST_CASE(revert_with_cause)
function g() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
+ function h() public returns (bool, bytes) {
+ return forward(address(d), msg.data);
+ }
+ function i() public returns (bool, bytes) {
+ return forward(address(d), msg.data);
+ }
+ function j() public returns (bool, bytes) {
+ return forward(address(d), msg.data);
+ }
}
)";
compileAndRun(sourceCode, 0, "C");
@@ -10693,6 +10714,9 @@ BOOST_AUTO_TEST_CASE(revert_with_cause)
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());
+ ABI_CHECK(callContractFunction("h()"), haveReturndata ? encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0): bytes());
+ ABI_CHECK(callContractFunction("i()"), haveReturndata ? encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0): bytes());
+ ABI_CHECK(callContractFunction("j()"), haveReturndata ? encodeArgs(0, 0x40, 0x84) + errorSignature + encodeArgs(0x20, 44, "test1234567890123456789012345678901234567890") + bytes(28, 0): bytes());
}
BOOST_AUTO_TEST_CASE(require_with_message)
@@ -10701,6 +10725,7 @@ BOOST_AUTO_TEST_CASE(require_with_message)
contract D {
bool flag = false;
string storageError = "abc";
+ string constant constantError = "abc";
function f(uint x) public {
require(x > 7, "failed");
}
@@ -10718,6 +10743,13 @@ BOOST_AUTO_TEST_CASE(require_with_message)
function h() public {
require(false, storageError);
}
+ function i() public {
+ require(false, constantError);
+ }
+ function j() public {
+ string memory errMsg = "msg";
+ require(false, errMsg);
+ }
}
contract C {
D d = new D();
@@ -10741,6 +10773,12 @@ BOOST_AUTO_TEST_CASE(require_with_message)
function h() public returns (bool, bytes) {
return forward(address(d), msg.data);
}
+ function i() public returns (bool, bytes) {
+ return forward(address(d), msg.data);
+ }
+ function j() public returns (bool, bytes) {
+ return forward(address(d), msg.data);
+ }
}
)";
compileAndRun(sourceCode, 0, "C");
@@ -10751,6 +10789,8 @@ BOOST_AUTO_TEST_CASE(require_with_message)
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());
+ ABI_CHECK(callContractFunction("i()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 3, "abc") + bytes(28, 0): bytes());
+ ABI_CHECK(callContractFunction("j()"), haveReturndata ? encodeArgs(0, 0x40, 0x64) + errorSignature + encodeArgs(0x20, 3, "msg") + bytes(28, 0): bytes());
}
BOOST_AUTO_TEST_CASE(bubble_up_error_messages)