Merge pull request #2833 from ethereum/statemutability-builtins

Mark all built in functions with appropriate statemutability

libsolidity/analysis/GlobalContext.cpp

@@ -43,13 +43,13 @@ m_magicVariables(vector<shared_ptr<MagicVariableDeclaration const>>{make_shared<
 					make_shared<MagicVariableDeclaration>("selfdestruct",
 							make_shared<FunctionType>(strings{"address"}, strings{}, FunctionType::Kind::Selfdestruct)),
 					make_shared<MagicVariableDeclaration>("addmod",
-						make_shared<FunctionType>(strings{"uint256", "uint256", "uint256"}, strings{"uint256"}, FunctionType::Kind::AddMod)),
+						make_shared<FunctionType>(strings{"uint256", "uint256", "uint256"}, strings{"uint256"}, FunctionType::Kind::AddMod, false, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("mulmod",
-						make_shared<FunctionType>(strings{"uint256", "uint256", "uint256"}, strings{"uint256"}, FunctionType::Kind::MulMod)),
+						make_shared<FunctionType>(strings{"uint256", "uint256", "uint256"}, strings{"uint256"}, FunctionType::Kind::MulMod, false, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("sha3",
-							make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA3, true)),
+							make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA3, true, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("keccak256",
-							make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA3, true)),
+							make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA3, true, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("log0",
 							make_shared<FunctionType>(strings{"bytes32"}, strings{}, FunctionType::Kind::Log0)),
 					make_shared<MagicVariableDeclaration>("log1",
@@ -61,17 +61,17 @@ m_magicVariables(vector<shared_ptr<MagicVariableDeclaration const>>{make_shared<
 					make_shared<MagicVariableDeclaration>("log4",
 							make_shared<FunctionType>(strings{"bytes32", "bytes32", "bytes32", "bytes32", "bytes32"}, strings{}, FunctionType::Kind::Log4)),
 					make_shared<MagicVariableDeclaration>("sha256",
-							make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA256, true)),
+							make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA256, true, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("ecrecover",
-							make_shared<FunctionType>(strings{"bytes32", "uint8", "bytes32", "bytes32"}, strings{"address"}, FunctionType::Kind::ECRecover)),
+							make_shared<FunctionType>(strings{"bytes32", "uint8", "bytes32", "bytes32"}, strings{"address"}, FunctionType::Kind::ECRecover, false, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("ripemd160",
-							make_shared<FunctionType>(strings(), strings{"bytes20"}, FunctionType::Kind::RIPEMD160, true)),
+							make_shared<FunctionType>(strings(), strings{"bytes20"}, FunctionType::Kind::RIPEMD160, true, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("assert",
-							make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Kind::Assert)),
+							make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Kind::Assert, false, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("require",
-							make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Kind::Require)),
+							make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Kind::Require, false, StateMutability::Pure)),
 					make_shared<MagicVariableDeclaration>("revert",
-							make_shared<FunctionType>(strings(), strings(), FunctionType::Kind::Revert))})
+							make_shared<FunctionType>(strings(), strings(), FunctionType::Kind::Revert, false, StateMutability::Pure))})
 {
 }
 

libsolidity/analysis/TypeChecker.cpp

@@ -1626,7 +1626,9 @@ void TypeChecker::endVisit(NewExpression const& _newExpression)
 			TypePointers{type},
 			strings(),
 			strings(),
-			FunctionType::Kind::ObjectCreation
+			FunctionType::Kind::ObjectCreation,
+			false,
+			StateMutability::Pure
 		);
 		_newExpression.annotation().isPure = true;
 	}

libsolidity/ast/Types.cpp

@@ -2169,7 +2169,6 @@ FunctionTypePointer FunctionType::newExpressionType(ContractDefinition const& _c
 		strings{""},
 		Kind::Creation,
 		false,
-		nullptr,
 		stateMutability
 	);
 }
@@ -2421,8 +2420,8 @@ FunctionTypePointer FunctionType::interfaceFunctionType() const
 		m_returnParameterNames,
 		m_kind,
 		m_arbitraryParameters,
-		m_declaration,
+		m_stateMutability,
-		m_stateMutability
+		m_declaration
 	);
 }
 
@@ -2449,8 +2448,8 @@ MemberList::MemberMap FunctionType::nativeMembers(ContractDefinition const*) con
 						strings(),
 						Kind::SetValue,
 						false,
-						nullptr,
 						StateMutability::NonPayable,
+						nullptr,
 						m_gasSet,
 						m_valueSet
 					)
@@ -2466,8 +2465,8 @@ MemberList::MemberMap FunctionType::nativeMembers(ContractDefinition const*) con
 					strings(),
 					Kind::SetGas,
 					false,
-					nullptr,
 					StateMutability::NonPayable,
+					nullptr,
 					m_gasSet,
 					m_valueSet
 				)
@@ -2574,6 +2573,8 @@ u256 FunctionType::externalIdentifier() const
 
 bool FunctionType::isPure() const
 {
+	// FIXME: replace this with m_stateMutability == StateMutability::Pure once
+	//        the callgraph analyzer is in place
 	return
 		m_kind == Kind::SHA3 ||
 		m_kind == Kind::ECRecover ||
@@ -2602,8 +2603,8 @@ TypePointer FunctionType::copyAndSetGasOrValue(bool _setGas, bool _setValue) con
 		m_returnParameterNames,
 		m_kind,
 		m_arbitraryParameters,
-		m_declaration,
 		m_stateMutability,
+		m_declaration,
 		m_gasSet || _setGas,
 		m_valueSet || _setValue,
 		m_bound
@@ -2651,8 +2652,8 @@ FunctionTypePointer FunctionType::asMemberFunction(bool _inLibrary, bool _bound)
 		m_returnParameterNames,
 		kind,
 		m_arbitraryParameters,
-		m_declaration,
 		m_stateMutability,
+		m_declaration,
 		m_gasSet,
 		m_valueSet,
 		_bound
@@ -2870,7 +2871,7 @@ MemberList::MemberMap MagicType::nativeMembers(ContractDefinition const*) const
 		return MemberList::MemberMap({
 			{"coinbase", make_shared<IntegerType>(0, IntegerType::Modifier::Address)},
 			{"timestamp", make_shared<IntegerType>(256)},
-			{"blockhash", make_shared<FunctionType>(strings{"uint"}, strings{"bytes32"}, FunctionType::Kind::BlockHash)},
+			{"blockhash", make_shared<FunctionType>(strings{"uint"}, strings{"bytes32"}, FunctionType::Kind::BlockHash, false, StateMutability::View)},
 			{"difficulty", make_shared<IntegerType>(256)},
 			{"number", make_shared<IntegerType>(256)},
 			{"gaslimit", make_shared<IntegerType>(256)}

libsolidity/ast/Types.h

@@ -899,7 +899,6 @@ public:
 		strings(),
 		_kind,
 		_arbitraryParameters,
-		nullptr,
 		_stateMutability
 	)
 	{
@@ -916,8 +915,8 @@ public:
 		strings _returnParameterNames = strings(),
 		Kind _kind = Kind::Internal,
 		bool _arbitraryParameters = false,
-		Declaration const* _declaration = nullptr,
 		StateMutability _stateMutability = StateMutability::NonPayable,
+		Declaration const* _declaration = nullptr,
 		bool _gasSet = false,
 		bool _valueSet = false,
 		bool _bound = false

libsolidity/codegen/ExpressionCompiler.cpp

@@ -644,8 +644,8 @@ bool ExpressionCompiler::visit(FunctionCall const& _functionCall)
 					strings(),
 					FunctionType::Kind::BareCall,
 					false,
-					nullptr,
 					StateMutability::NonPayable,
+					nullptr,
 					true,
 					true
 				),