Merge pull request #1325 from LefterisJP/sol_MsgSig

Adding msg.sig Solidity Magic type

1 files changed, 3 insertions, 0 deletions

diff --git a/ExpressionCompiler.cpp b/ExpressionCompiler.cpp
index 9391bc2a..92fd7043 100644
--- a/ExpressionCompiler.cpp
+++ b/ExpressionCompiler.cpp
@@ -652,6 +652,9 @@ void ExpressionCompiler::endVisit(MemberAccess const& _memberAccess)
 			m_context << eth::Instruction::GASPRICE;
 		else if (member == "data")
 			m_context << u256(0) << eth::Instruction::CALLDATASIZE;
+		else if (member == "sig")
+			m_context << u256(0) << eth::Instruction::CALLDATALOAD
+				<< (u256(0xffffffff) << (256 - 32)) << eth::Instruction::AND;
 		else
 			BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Unknown magic member."));
 		break;