make use of C++ = default constructor declarations as well as more non-static member initialization syntax.

libyul/Dialect.h

@@ -54,7 +54,7 @@ struct Dialect: boost::noncopyable
 	virtual BuiltinFunction const* builtin(YulString /*_name*/) const { return nullptr; }
 
 	Dialect(AsmFlavour _flavour): flavour(_flavour) {}
-	virtual ~Dialect() {}
+	virtual ~Dialect() = default;
 
 	static std::shared_ptr<Dialect> yul()
 	{

libyul/Object.h

@@ -37,7 +37,7 @@ struct AsmAnalysisInfo;
  */
 struct ObjectNode
 {
-	virtual ~ObjectNode() {}
+	virtual ~ObjectNode() = default;
 	virtual std::string toString(bool _yul) const = 0;
 
 	YulString name;

libyul/YulString.h

@@ -42,10 +42,9 @@ public:
 		size_t id;
 		std::uint64_t hash;
 	};
-	YulStringRepository():
-		m_strings{std::make_shared<std::string>()},
-		m_hashToID{std::make_pair(emptyHash(), 0)}
-	{}
+
+	YulStringRepository() = default;
+
 	static YulStringRepository& instance()
 	{
 		static YulStringRepository inst;
@@ -80,9 +79,10 @@ public:
 		return hash;
 	}
 	static constexpr std::uint64_t emptyHash() { return 14695981039346656037u; }
+
 private:
-	std::vector<std::shared_ptr<std::string>> m_strings;
-	std::unordered_multimap<std::uint64_t, size_t> m_hashToID;
+	std::vector<std::shared_ptr<std::string>> m_strings = {std::make_shared<std::string>()};
+	std::unordered_multimap<std::uint64_t, size_t> m_hashToID = {{emptyHash(), 0}};
 };
 
 /// Wrapper around handles into the YulString repository.

libyul/backends/evm/AbstractAssembly.h

@@ -55,7 +55,7 @@ public:
 	using LabelID = size_t;
 	using SubID = size_t;
 
-	virtual ~AbstractAssembly() {}
+	virtual ~AbstractAssembly() = default;
 
 	/// Set a new source location valid starting from the next instruction.
 	virtual void setSourceLocation(langutil::SourceLocation const& _location) = 0;

libyul/backends/evm/EVMAssembly.h

@@ -38,7 +38,7 @@ class EVMAssembly: public AbstractAssembly
 {
 public:
 	explicit EVMAssembly(bool _evm15 = false): m_evm15(_evm15) { }
-	virtual ~EVMAssembly() {}
+	virtual ~EVMAssembly() = default;
 
 	/// Set a new source location valid starting from the next instruction.
 	void setSourceLocation(langutil::SourceLocation const& _location) override;

libyul/backends/evm/EVMDialect.cpp

@@ -38,7 +38,7 @@ using namespace dev::solidity;
 
 
 EVMDialect::EVMDialect(AsmFlavour _flavour, bool _objectAccess):
-	Dialect(_flavour), m_objectAccess(_objectAccess)
+	Dialect{_flavour}, m_objectAccess(_objectAccess)
 {
 	// The EVM instructions will be moved to builtins at some point.
 	if (!m_objectAccess)

libyul/optimiser/RedundantAssignEliminator.h

@@ -115,7 +115,7 @@ public:
 	static void run(Block& _ast);
 
 private:
-	RedundantAssignEliminator() {}
+	RedundantAssignEliminator() = default;
 
 	class State
 	{