private StatementSyntax GenerateCollectionElementInitialization()

in src/Json.Schema.ToDotNet/ClassGenerator.cs [1129:1193]
54 lines of code
1 McCabe index (conditional complexity)

        private StatementSyntax GenerateCollectionElementInitialization(
            string destinationVariableName,
            string sourceVariableName,
            string elementInfoKey)
        {
            // The name of a variable used to loop over the elements of the collection
            // held in sourceVariableName.
            string collectionElementVariableName = _localVariableNameGenerator.GetNextCollectionElementVariableName();

            // The name of the variable that holds a collection that will contain
            // copies of the elements in the source collection.
            string innerDestinationVariableName = _localVariableNameGenerator.GetNextDestinationVariableName();

            // Find out out kind of code must be generated to initialize the elements of
            // the collection.
            string sourceElementInfoKey = PropertyInfoDictionary.MakeElementKeyName(elementInfoKey);
            InitializationKind elementInitializationKind = PropInfoDictionary[sourceElementInfoKey].InitializationKind;
            TypeSyntax sourceElementType = PropInfoDictionary[elementInfoKey].Type;

            return SyntaxFactory.IfStatement(
                SyntaxHelper.IsNull(SyntaxFactory.IdentifierName(sourceVariableName)),
                SyntaxFactory.Block(
                    SyntaxFactory.ExpressionStatement(
                        SyntaxFactory.InvocationExpression(
                            SyntaxFactory.MemberAccessExpression(
                                SyntaxKind.SimpleMemberAccessExpression,
                                SyntaxFactory.IdentifierName(destinationVariableName),
                                SyntaxFactory.IdentifierName(AddMethodName)),
                            SyntaxHelper.ArgumentList(
                                SyntaxFactory.LiteralExpression(
                                    SyntaxKind.NullLiteralExpression))))),
                SyntaxFactory.ElseClause(
                    SyntaxFactory.Block(
                        SyntaxFactory.LocalDeclarationStatement(
                            SyntaxFactory.VariableDeclaration(
                                SyntaxHelper.Var(),
                                SyntaxFactory.SingletonSeparatedList(
                                    SyntaxFactory.VariableDeclarator(
                                        SyntaxFactory.Identifier(innerDestinationVariableName),
                                        default(BracketedArgumentListSyntax),
                                        SyntaxFactory.EqualsValueClause(
                                            SyntaxFactory.ObjectCreationExpression(
                                                PropInfoDictionary.GetConcreteListType(elementInfoKey),
                                                SyntaxHelper.ArgumentList(),
                                                default(InitializerExpressionSyntax))))))),

                        SyntaxFactory.ForEachStatement(
                            SyntaxHelper.Var(),
                            collectionElementVariableName,
                            SyntaxFactory.IdentifierName(sourceVariableName),
                            SyntaxFactory.Block(
                                GenerateElementInitialization(
                                    sourceElementInfoKey,
                                    innerDestinationVariableName,
                                    collectionElementVariableName))),

                        SyntaxFactory.ExpressionStatement(
                            SyntaxFactory.InvocationExpression(
                            SyntaxFactory.MemberAccessExpression(
                                SyntaxKind.SimpleMemberAccessExpression,
                                SyntaxFactory.IdentifierName(destinationVariableName),
                                SyntaxFactory.IdentifierName(AddMethodName)),
                            SyntaxHelper.ArgumentList(
                                SyntaxFactory.IdentifierName(innerDestinationVariableName)))))));
        }