Apply modernize-use-emplace.

libsolidity/ast/ASTJsonImporter.cpp

@@ -495,7 +495,7 @@ ASTPointer<UserDefinedTypeName> ASTJsonImporter::createUserDefinedTypeName(Json:
 	string nameString = member(_node, "name").asString();
 	boost::algorithm::split(strs, nameString, boost::is_any_of("."));
 	for (string s: strs)
-		namePath.push_back(ASTString(s));
+		namePath.emplace_back(s);
 	return createASTNode<UserDefinedTypeName>(
 		_node,
 		namePath

libsolidity/codegen/ABIFunctions.cpp

@@ -843,7 +843,7 @@ string ABIFunctions::abiEncodingFunctionStruct(
 			if (dynamicMember)
 				solAssert(dynamic, "");
 
-			members.push_back({});
+			members.emplace_back();
 			members.back()["preprocess"] = "";
 
 			switch (_from.location())
@@ -1336,7 +1336,7 @@ string ABIFunctions::abiDecodingFunctionStruct(StructType const& _type, bool _fr
 			memberTempl("memoryOffset", toCompactHexWithPrefix(_type.memoryOffsetOfMember(member.name)));
 			memberTempl("abiDecode", abiDecodingFunction(*member.type, _fromMemory, false));
 
-			members.push_back({});
+			members.emplace_back();
 			members.back()["decode"] = memberTempl.render();
 			members.back()["memberName"] = member.name;
 			headPos += decodingType->calldataHeadSize();

libsolidity/codegen/ir/IRGenerator.cpp

@@ -339,7 +339,7 @@ string IRGenerator::dispatchRoutine(ContractDefinition const& _contract)
 	vector<map<string, string>> functions;
 	for (auto const& function: _contract.interfaceFunctions())
 	{
-		functions.push_back({});
+		functions.emplace_back();
 		map<string, string>& templ = functions.back();
 		templ["functionSelector"] = "0x" + function.first.hex();
 		FunctionTypePointer const& type = function.second;

libsolidity/formal/EncodingContext.cpp

@@ -232,7 +232,7 @@ void EncodingContext::pushSolver()
 	if (m_accumulateAssertions)
 		m_assertions.push_back(assertions());
 	else
-		m_assertions.push_back(smt::Expression(true));
+		m_assertions.emplace_back(true);
 }
 
 void EncodingContext::popSolver()

libsolidity/interface/StandardCompiler.cpp

@@ -200,7 +200,7 @@ bool isArtifactRequested(Json::Value const& _outputSelection, string const& _fil
 			/// for Contract-level targets try both contract name and wildcard
 			vector<string> contracts{ _contract };
 			if (!_contract.empty())
-				contracts.push_back("*");
+				contracts.emplace_back("*");
 			for (auto const& contract: contracts)
 				if (
 					_outputSelection[file].isMember(contract) &&

libyul/backends/wasm/WordSizeTransform.cpp

@@ -104,7 +104,7 @@ void WordSizeTransform::operator()(Block& _block)
 							auto newLhs = generateU64IdentifierNames(varDecl.variables[0].name);
 							vector<Statement> ret;
 							for (int i = 0; i < 3; i++)
-								ret.push_back(VariableDeclaration{
+								ret.emplace_back(VariableDeclaration{
 									varDecl.location,
 									{TypedName{varDecl.location, newLhs[i], m_targetDialect.defaultType}},
 									make_unique<Expression>(Literal{
@@ -114,7 +114,7 @@ void WordSizeTransform::operator()(Block& _block)
 										m_targetDialect.defaultType
 									})
 								});
-							ret.push_back(VariableDeclaration{
+							ret.emplace_back(VariableDeclaration{
 								varDecl.location,
 								{TypedName{varDecl.location, newLhs[3], m_targetDialect.defaultType}},
 								std::move(varDecl.value)
@@ -135,8 +135,7 @@ void WordSizeTransform::operator()(Block& _block)
 					auto newLhs = generateU64IdentifierNames(varDecl.variables[0].name);
 					vector<Statement> ret;
 					for (int i = 0; i < 4; i++)
-						ret.push_back(
+						ret.emplace_back(VariableDeclaration{
-							VariableDeclaration{
 								varDecl.location,
 								{TypedName{varDecl.location, newLhs[i], m_targetDialect.defaultType}},
 								std::move(newRhs[i])
@@ -165,7 +164,7 @@ void WordSizeTransform::operator()(Block& _block)
 							auto newLhs = generateU64IdentifierNames(assignment.variableNames[0].name);
 							vector<Statement> ret;
 							for (int i = 0; i < 3; i++)
-								ret.push_back(Assignment{
+								ret.emplace_back(Assignment{
 									assignment.location,
 									{Identifier{assignment.location, newLhs[i]}},
 									make_unique<Expression>(Literal{
@@ -175,7 +174,7 @@ void WordSizeTransform::operator()(Block& _block)
 										m_targetDialect.defaultType
 									})
 								});
-							ret.push_back(Assignment{
+							ret.emplace_back(Assignment{
 								assignment.location,
 								{Identifier{assignment.location, newLhs[3]}},
 								std::move(assignment.value)
@@ -196,8 +195,7 @@ void WordSizeTransform::operator()(Block& _block)
 					YulString lhsName = assignment.variableNames[0].name;
 					vector<Statement> ret;
 					for (int i = 0; i < 4; i++)
-						ret.push_back(
+						ret.emplace_back(Assignment{
-							Assignment{
 								assignment.location,
 								{Identifier{assignment.location, m_variableMapping.at(lhsName)[i]}},
 								std::move(newRhs[i])

test/libsolutil/StringUtils.cpp

@@ -76,13 +76,13 @@ BOOST_AUTO_TEST_CASE(test_alternatives_list)
 {
 	vector<string> strings;
 	BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "");
-	strings.push_back("a");
+	strings.emplace_back("a");
 	BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\"");
-	strings.push_back("b");
+	strings.emplace_back("b");
 	BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\" or \"b\"");
-	strings.push_back("c");
+	strings.emplace_back("c");
 	BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\", \"b\" or \"c\"");
-	strings.push_back("d");
+	strings.emplace_back("d");
 	BOOST_CHECK_EQUAL(quotedAlternativesList(strings), "\"a\", \"b\", \"c\" or \"d\"");
 }
 

test/libyul/FunctionSideEffects.cpp

@@ -47,15 +47,15 @@ string toString(SideEffects const& _sideEffects)
 {
 	vector<string> ret;
 	if (_sideEffects.movable)
-		ret.push_back("movable");
+		ret.emplace_back("movable");
 	if (_sideEffects.sideEffectFree)
-		ret.push_back("sideEffectFree");
+		ret.emplace_back("sideEffectFree");
 	if (_sideEffects.sideEffectFreeIfNoMSize)
-		ret.push_back("sideEffectFreeIfNoMSize");
+		ret.emplace_back("sideEffectFreeIfNoMSize");
 	if (_sideEffects.invalidatesStorage)
-		ret.push_back("invalidatesStorage");
+		ret.emplace_back("invalidatesStorage");
 	if (_sideEffects.invalidatesMemory)
-		ret.push_back("invalidatesMemory");
+		ret.emplace_back("invalidatesMemory");
 	return joinHumanReadable(ret);
 }
 }

test/tools/afl_fuzzer.cpp

@@ -104,7 +104,7 @@ Allowed options)",
 	else if (arguments.count("input-files"))
 		inputs = arguments["input-files"].as<vector<string>>();
 	else
-		inputs.push_back("");
+		inputs.emplace_back("");
 
 	bool optimize = !arguments.count("without-optimizer");
 	int retResult = 0;

test/tools/yulInterpreter/Interpreter.cpp

@@ -308,7 +308,7 @@ pair<
 	for (auto const& scope: m_scopes)
 	{
 		// Copy over all functions.
-		newScopes.push_back({});
+		newScopes.emplace_back();
 		for (auto const& [name, funDef]: scope)
 			if (funDef)
 				newScopes.back().emplace(name, funDef);

test/tools/yulInterpreter/Interpreter.h

@@ -136,7 +136,7 @@ private:
 	/// Evaluates the expression and returns its value.
 	std::vector<u256> evaluateMulti(Expression const& _expression);
 
-	void openScope() { m_scopes.push_back({}); }
+	void openScope() { m_scopes.emplace_back(); }
 	/// Unregisters variables and functions.
 	void closeScope();
 

tools/solidityUpgrade/Upgrade050.cpp

@@ -32,8 +32,7 @@ void ConstructorKeyword::endVisit(ContractDefinition const& _contract)
 {
 	for (auto const* function: _contract.definedFunctions())
 		if (function->name() == _contract.name())
-			m_changes.push_back(
+			m_changes.emplace_back(
-				UpgradeChange{
 					UpgradeChange::Level::Safe,
 					function->location(),
 					SourceTransform::replaceFunctionName(
@@ -41,18 +40,15 @@ void ConstructorKeyword::endVisit(ContractDefinition const& _contract)
 						function->name(),
 						"constructor"
 					)
-				}
 			);
 }
 
 void VisibilitySpecifier::endVisit(FunctionDefinition const& _function)
 {
 	if (_function.noVisibilitySpecified())
-		m_changes.push_back(
+		m_changes.emplace_back(
-			UpgradeChange{
 				UpgradeChange::Level::Safe,
 				_function.location(),
 				SourceTransform::insertAfterRightParenthesis(_function.location(), "public")
-			}
 		);
 }

tools/solidityUpgrade/Upgrade060.cpp

@@ -106,12 +106,10 @@ void AbstractContract::endVisit(ContractDefinition const& _contract)
 		!_contract.abstract() &&
 		!_contract.isInterface()
 	)
-		m_changes.push_back(
+		m_changes.emplace_back(
-			UpgradeChange{
 				UpgradeChange::Level::Safe,
 				_contract.location(),
 				SourceTransform::insertBeforeKeyword(_contract.location(), "contract", "abstract")
-			}
 		);
 }
 
@@ -132,12 +130,10 @@ void OverridingFunction::endVisit(ContractDefinition const& _contract)
 
 			/// Add override with contract list, if needed.
 			if (!function->overrides() && expectedContracts.size() > 1)
-				m_changes.push_back(
+				m_changes.emplace_back(
-					UpgradeChange{
 						UpgradeChange::Level::Safe,
 						function->location(),
 						appendOverride(*function, expectedContracts)
-					}
 				);
 
 			for (auto [begin, end] = inheritedFunctions.equal_range(proxy); begin != end; begin++)
@@ -151,12 +147,10 @@ void OverridingFunction::endVisit(ContractDefinition const& _contract)
 					/// If function does not specify override and no override with
 					/// contract list was added before.
 					if (!function->overrides() && expectedContracts.size() <= 1)
-						m_changes.push_back(
+						m_changes.emplace_back(
-							UpgradeChange{
 								UpgradeChange::Level::Safe,
 								function->location(),
 								appendOverride(*function, expectedContracts)
-							}
 						);
 				}
 			}
@@ -181,12 +175,10 @@ void VirtualFunction::endVisit(ContractDefinition const& _contract)
 				function->visibility() > Visibility::Private
 			)
 			{
-				m_changes.push_back(
+				m_changes.emplace_back(
-					UpgradeChange{
 						UpgradeChange::Level::Safe,
 						function->location(),
 						appendVirtual(*function)
-					}
 				);
 			}
 
@@ -198,12 +190,10 @@ void VirtualFunction::endVisit(ContractDefinition const& _contract)
 					!super.virtualSemantics()
 				)
 				{
-					m_changes.push_back(
+					m_changes.emplace_back(
-						UpgradeChange{
 							UpgradeChange::Level::Safe,
 							function->location(),
 							appendVirtual(*function)
-						}
 					);
 				}
 			}

tools/yulPhaser/PairSelections.cpp

@@ -41,7 +41,7 @@ vector<tuple<size_t, size_t>> RandomPairSelection::materialise(size_t _poolSize)
 			index2 = SimulationRNG::uniformInt(0, _poolSize - 1);
 		} while (index1 == index2);
 
-		selection.push_back({index1, index2});
+		selection.emplace_back(index1, index2);
 	}
 
 	return selection;
@@ -58,7 +58,7 @@ vector<tuple<size_t, size_t>> PairMosaicSelection::materialise(size_t _poolSize)
 	for (size_t i = 0; i < count; ++i)
 	{
 		tuple<size_t, size_t> pair = m_pattern[i % m_pattern.size()];
-		selection.push_back({min(get<0>(pair), _poolSize - 1), min(get<1>(pair), _poolSize - 1)});
+		selection.emplace_back(min(get<0>(pair), _poolSize - 1), min(get<1>(pair), _poolSize - 1));
 	}
 
 	return selection;