Provide access to the name of contracts.

libsolidity/analysis/TypeChecker.cpp

@@ -2154,6 +2154,8 @@ bool TypeChecker::visit(MemberAccess const& _memberAccess)
 					"Circular reference for contract code access."
 				);
 		}
+		else if (magicType->kind() == MagicType::Kind::MetaType && memberName == "name")
+			annotation.isPure = true;
 	}
 
 	return false;

libsolidity/analysis/ViewPureChecker.cpp

@@ -340,7 +340,8 @@ void ViewPureChecker::endVisit(MemberAccess const& _memberAccess)
 			{MagicType::Kind::Message, "data"},
 			{MagicType::Kind::Message, "sig"},
 			{MagicType::Kind::MetaType, "creationCode"},
-			{MagicType::Kind::MetaType, "runtimeCode"}
+			{MagicType::Kind::MetaType, "runtimeCode"},
+			{MagicType::Kind::MetaType, "name"},
 		};
 		set<MagicMember> static const payableMembers{
 			{MagicType::Kind::Message, "value"}

libsolidity/ast/Types.cpp

@@ -3490,8 +3490,9 @@ MemberList::MemberMap MagicType::nativeMembers(ContractDefinition const*) const
 		ContractDefinition const& contract = dynamic_cast<ContractType const&>(*m_typeArgument).contractDefinition();
 		if (contract.canBeDeployed())
 			return MemberList::MemberMap({
-				{"creationCode", std::make_shared<ArrayType>(DataLocation::Memory)},
-				{"runtimeCode", std::make_shared<ArrayType>(DataLocation::Memory)}
+				{"creationCode", make_shared<ArrayType>(DataLocation::Memory)},
+				{"runtimeCode", make_shared<ArrayType>(DataLocation::Memory)},
+				{"name", make_shared<ArrayType>(DataLocation::Memory, true)},
 			});
 		else
 			return {};

libsolidity/codegen/CompilerUtils.h

@@ -186,6 +186,11 @@ public:
 	/// Stack post:
 	void memoryCopy();
 
+	/// Stores the given string in memory.
+	/// Stack pre: mempos
+	/// Stack post:
+	void storeStringData(bytesConstRef _data);
+
 	/// Converts the combined and left-aligned (right-aligned if @a _rightAligned is true)
 	/// external function type <address><function identifier> into two stack slots:
 	/// address (right aligned), function identifier (right aligned)
@@ -285,11 +290,6 @@ private:
 	/// Address of the precompiled identity contract.
 	static unsigned const identityContractAddress;
 
-	/// Stores the given string in memory.
-	/// Stack pre: mempos
-	/// Stack post:
-	void storeStringData(bytesConstRef _data);
-
 	/// Appends code that cleans higher-order bits for integer types.
 	void cleanHigherOrderBits(IntegerType const& _typeOnStack);
 

libsolidity/codegen/ExpressionCompiler.cpp

@@ -1361,6 +1361,18 @@ bool ExpressionCompiler::visit(MemberAccess const& _memberAccess)
 			);
 			m_context << Instruction::POP;
 		}
+		else if (member == "name")
+		{
+			TypePointer arg = dynamic_cast<MagicType const&>(*_memberAccess.expression().annotation().type).typeArgument();
+			ContractDefinition const& contract = dynamic_cast<ContractType const&>(*arg).contractDefinition();
+			m_context << u256(contract.name().length() + 32);
+			utils().allocateMemory();
+			// store string length
+			m_context << u256(contract.name().length()) << Instruction::DUP2 << Instruction::MSTORE;
+			// adjust pointer
+			m_context << Instruction::DUP1 << u256(32) << Instruction::ADD;
+			utils().storeStringData(contract.name());
+		}
 		else
 			solAssert(false, "Unknown magic member.");
 		break;