Support payable keyword for functions

libsolidity/ast/AST.h

@@ -540,6 +540,7 @@ public:
 		bool _isDeclaredConst,
 		std::vector<ASTPointer<ModifierInvocation>> const& _modifiers,
 		ASTPointer<ParameterList> const& _returnParameters,
+		bool _isPayable,
 		ASTPointer<Block> const& _body
 	):
 		CallableDeclaration(_location, _name, _visibility, _parameters, _returnParameters),
@@ -547,6 +548,7 @@ public:
 		ImplementationOptional(_body != nullptr),
 		m_isConstructor(_isConstructor),
 		m_isDeclaredConst(_isDeclaredConst),
+		m_isPayable(_isPayable),
 		m_functionModifiers(_modifiers),
 		m_body(_body)
 	{}
@@ -556,6 +558,7 @@ public:
 
 	bool isConstructor() const { return m_isConstructor; }
 	bool isDeclaredConst() const { return m_isDeclaredConst; }
+	bool isPayable() const { return m_isPayable; }
 	std::vector<ASTPointer<ModifierInvocation>> const& modifiers() const { return m_functionModifiers; }
 	std::vector<ASTPointer<VariableDeclaration>> const& returnParameters() const { return m_returnParameters->parameters(); }
 	Block const& body() const { return *m_body; }
@@ -578,6 +581,7 @@ public:
 private:
 	bool m_isConstructor;
 	bool m_isDeclaredConst;
+	bool m_isPayable;
 	std::vector<ASTPointer<ModifierInvocation>> m_functionModifiers;
 	ASTPointer<Block> m_body;
 };

libsolidity/ast/Types.cpp

@@ -1653,6 +1653,7 @@ TypePointer TupleType::closestTemporaryType(TypePointer const& _targetType) cons
 FunctionType::FunctionType(FunctionDefinition const& _function, bool _isInternal):
 	m_location(_isInternal ? Location::Internal : Location::External),
 	m_isConstant(_function.isDeclaredConst()),
+	m_isPayable(_function.isPayable()),
 	m_declaration(&_function)
 {
 	TypePointers params;

libsolidity/ast/Types.h

@@ -905,6 +905,7 @@ public:
 	}
 	bool hasDeclaration() const { return !!m_declaration; }
 	bool isConstant() const { return m_isConstant; }
+	bool isPayable() const { return m_isPayable; }
 	/// @return A shared pointer of an ASTString.
 	/// Can contain a nullptr in which case indicates absence of documentation
 	ASTPointer<ASTString> documentation() const;
@@ -942,6 +943,7 @@ private:
 	bool const m_valueSet = false; ///< true iff the value to be sent is on the stack
 	bool const m_bound = false; ///< true iff the function is called as arg1.fun(arg2, ..., argn)
 	bool m_isConstant = false;
+	bool m_isPayable = false;
 	Declaration const* m_declaration = nullptr;
 };