/// <summary> /// Gets the syntax for the creation of an anonymous type. /// </summary> /// <param name="tableElement">The description of a table.</param> /// <returns>An expression that builds an anonymous type from a table description.</returns> public static ExpressionSyntax GetSyntax(TableElement tableElement) { // Validate the parameter if (tableElement == null) { throw new ArgumentNullException(nameof(tableElement)); } // new { country.CountryId, country.CountryCode, country.Name, country.RowVersion }; List <SyntaxNodeOrToken> properties = new List <SyntaxNodeOrToken>(); foreach (ColumnElement columnElement in tableElement.Columns) { if (properties.Count != 0) { properties.Add(SyntaxFactory.Token(SyntaxKind.CommaToken)); } properties.Add( SyntaxFactory.AnonymousObjectMemberDeclarator( SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(tableElement.Name.ToVariableName()), SyntaxFactory.IdentifierName(columnElement.Name)))); } return(SyntaxFactory.AnonymousObjectCreationExpression( SyntaxFactory.SeparatedList <AnonymousObjectMemberDeclaratorSyntax>(properties))); }
public override SyntaxNode MakeSyntaxNode() { var res = SyntaxFactory.AnonymousObjectMemberDeclarator(NameEquals, Expression); IsChanged = false; return(res); }
public CSharpSyntaxNode Convert(ObjectLiteralExpression node) { List <Node> properties = node.Properties; Node type = node.Type; if (type.Kind == NodeKind.TypeLiteral && properties.Count >= 2 && (type as TypeLiteral).Members[0].Kind != NodeKind.IndexSignature) { return(SyntaxFactory.TupleExpression().AddArguments(properties.ToCsNodes <ArgumentSyntax>())); } else if (type.Kind == NodeKind.AnyKeyword) { AnonymousObjectCreationExpressionSyntax csAnonyNewExpr = SyntaxFactory.AnonymousObjectCreationExpression(); foreach (PropertyAssignment prop in node.Properties) { string propName = prop.Name.Text; Node initValue = prop.Initializer; ExpressionSyntax valueExpr = initValue.ToCsNode <ExpressionSyntax>(); if (type.Kind == NodeKind.TypeLiteral && initValue.Kind == NodeKind.NullKeyword) { Node memType = TypeHelper.GetTypeLiteralMemberType(type as TypeLiteral, propName); if (memType != null) { valueExpr = SyntaxFactory.CastExpression(memType.ToCsNode <TypeSyntax>(), valueExpr); } } csAnonyNewExpr = csAnonyNewExpr.AddInitializers(SyntaxFactory.AnonymousObjectMemberDeclarator( SyntaxFactory.NameEquals(propName), valueExpr)); } return(csAnonyNewExpr); } else { ObjectCreationExpressionSyntax csObjLiteral = SyntaxFactory.ObjectCreationExpression(type.ToCsNode <TypeSyntax>()).AddArgumentListArguments(); List <ExpressionSyntax> initItemExprs = new List <ExpressionSyntax>(); foreach (PropertyAssignment prop in properties) { ExpressionSyntax csNameExpression = SyntaxFactory.LiteralExpression( SyntaxKind.StringLiteralExpression, SyntaxFactory.Literal(prop.Name.Text)); InitializerExpressionSyntax itemInitExpr = SyntaxFactory .InitializerExpression(SyntaxKind.ComplexElementInitializerExpression) .AddExpressions(csNameExpression, prop.Initializer.ToCsNode <ExpressionSyntax>()); initItemExprs.Add(itemInitExpr); } if (initItemExprs.Count > 0) { return(csObjLiteral.WithInitializer(SyntaxFactory.InitializerExpression( SyntaxKind.CollectionInitializerExpression, SyntaxFactory.SeparatedList(initItemExprs)))); } return(csObjLiteral); } }
/// <summary> /// Creates an argument that creates a lambda expression for extracting the key from a class. /// </summary> /// <param name="foreignKeyElement">The unique key element.</param> /// <returns>An argument that extracts a key from an object.</returns> public static ExpressionSyntax GetForeignKey(ForeignKeyElement foreignKeyElement) { // Validate the parameter if (foreignKeyElement == null) { throw new ArgumentNullException(nameof(foreignKeyElement)); } // Used as a variable when constructing the lambda expression. string abbreviation = foreignKeyElement.Table.Name[0].ToString(CultureInfo.InvariantCulture).ToLowerInvariant(); // This will create an expression for extracting the key from record. CSharpSyntaxNode syntaxNode = null; if (foreignKeyElement.Columns.Count == 1) { // A simple key can be used like a value type. syntaxNode = SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(abbreviation), SyntaxFactory.IdentifierName(foreignKeyElement.Columns[0].Column.Name)); } else { // A Compound key must be constructed from an anomymous type. List <SyntaxNodeOrToken> keyElements = new List <SyntaxNodeOrToken>(); foreach (ColumnReferenceElement columnReferenceElement in foreignKeyElement.Columns) { if (keyElements.Count != 0) { keyElements.Add(SyntaxFactory.Token(SyntaxKind.CommaToken)); } keyElements.Add( SyntaxFactory.AnonymousObjectMemberDeclarator( SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(abbreviation), SyntaxFactory.IdentifierName(columnReferenceElement.Column.Name)))); } // b => b.BuyerId or b => new { b.BuyerId, b.ExternalId0 } syntaxNode = SyntaxFactory.AnonymousObjectCreationExpression( SyntaxFactory.SeparatedList <AnonymousObjectMemberDeclaratorSyntax>(keyElements.ToArray())); } // this.BuyerKey = new SimpleForeignKeyIndex<Buyer>("BuyerKey").HasIndex(b => b.BuyerId); return(SyntaxFactory.SimpleLambdaExpression(SyntaxFactory.Parameter(SyntaxFactory.Identifier(abbreviation)), syntaxNode)); }
private static SyntaxNodeOrToken GetNewSyntaxListItem(SyntaxNodeOrToken item) { if (!item.IsNode) { return(item); } var member = (AnonymousObjectMemberDeclaratorSyntax)item.AsNode(); if (member.Expression is IdentifierNameSyntax identifier && identifier.Identifier.ValueText == member.NameEquals.Name.Identifier.ValueText) { return(SyntaxFactory.AnonymousObjectMemberDeclarator(member.Expression).WithTriviaFrom(member)); } return(item); }
public string BuildExpression(Dictionary <string, ExpressionSyntax> selectExpressions) { var memberDeclarators = new SeparatedSyntaxList <AnonymousObjectMemberDeclaratorSyntax>(); foreach (var curExpr in selectExpressions.OrderBy(x => x.Key)) { var name = SyntaxFactory.NameEquals(curExpr.Key); var assignmentExpression = SyntaxFactory.AnonymousObjectMemberDeclarator(name, curExpr.Value); memberDeclarators = memberDeclarators.Add(assignmentExpression); } var anonymousObjectCreationExpression = SyntaxFactory.AnonymousObjectCreationExpression(memberDeclarators); if (InvocationExpression != null) { ExpressionSyntax expression = null; if (InvocationExpression.Expression is MemberAccessExpressionSyntax mae) { expression = mae; } else if (InvocationExpression.Expression is IdentifierNameSyntax identifier) { expression = identifier; } var invocExp = SyntaxFactory.InvocationExpression(expression) .WithArgumentList( SyntaxFactory.ArgumentList( SyntaxFactory.SingletonSeparatedList( SyntaxFactory.Argument( SyntaxFactory.SimpleLambdaExpression( SyntaxFactory.Parameter(SyntaxFactory.Identifier("doc")), anonymousObjectCreationExpression))))); return(invocExp.ToString().Normalize()); } if (FromExpression != null) { var queryExpr = SyntaxFactory.QueryExpression( SyntaxFactory.FromClause("doc", FromExpression), SyntaxFactory.QueryBody(SyntaxFactory.SelectClause(anonymousObjectCreationExpression))); return(queryExpr.ToString().Normalize()); } return(null); }
private static async Task <Document> AddProjectionAsync(Document document, Diagnostic diagnostic, CancellationToken cancellationToken) { var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false); var diagnosticSpan = diagnostic.Location.SourceSpan; // Find the type declaration identified by the diagnostic. var declarator = (VariableDeclaratorSyntax)root.FindToken(diagnosticSpan.Start).Parent; var invocation = (InvocationExpressionSyntax)declarator.Initializer.Value; var memberAccess = (MemberAccessExpressionSyntax)invocation.Expression; var firstArgument = invocation.ArgumentList.Arguments.FirstOrDefault(); if (firstArgument != null) { // Move condition from .First() to extra .Where() call so that we can place the .Select() between them var whereExpression = SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, memberAccess.Expression, SyntaxFactory.IdentifierName("Where")); var withWhere = SyntaxFactory.InvocationExpression(whereExpression, invocation.ArgumentList); var whereMemberAccess = memberAccess.WithExpression(withWhere); var newInvocation = SyntaxFactory.InvocationExpression(SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, whereMemberAccess.Expression, memberAccess.Name)); root = root.ReplaceNode(invocation, newInvocation); declarator = (VariableDeclaratorSyntax)root.FindToken(diagnosticSpan.Start).Parent; invocation = (InvocationExpressionSyntax)declarator.Initializer.Value; memberAccess = (MemberAccessExpressionSyntax)invocation.Expression; } var selectExpression = SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, memberAccess.Expression, SyntaxFactory.IdentifierName("Select")); var itExpr = SyntaxFactory.IdentifierName("it"); var it = SyntaxFactory.Identifier("it"); var members = diagnostic.Properties["Members"].Split('\n').Select(m => SyntaxFactory.AnonymousObjectMemberDeclarator(SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, itExpr, SyntaxFactory.IdentifierName(m)))); var newExpr = SyntaxFactory.AnonymousObjectCreationExpression(SyntaxFactory.SeparatedList(members)); var argument = SyntaxFactory.Argument(SyntaxFactory.SimpleLambdaExpression(SyntaxFactory.Parameter(it), newExpr)); var arguments = SyntaxFactory.ArgumentList(SyntaxFactory.SingletonSeparatedList(argument)); var projectedInvocationExpression = SyntaxFactory.InvocationExpression(selectExpression, arguments); var newMemberAccess = SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, projectedInvocationExpression, memberAccess.Name); var newRoot = root.ReplaceNode(memberAccess, newMemberAccess); return(document.WithSyntaxRoot(newRoot)); }
public static AnonymousObjectCreationExpressionSyntax Anonymous(params Tuple <string, ExpressionSyntax>[] initializers) { return(SyntaxFactory.AnonymousObjectCreationExpression(SyntaxFactory.SeparatedList( initializers.Select(x => SyntaxFactory.AnonymousObjectMemberDeclarator(SyntaxFactory.NameEquals(x.Item1), x.Item2) ), initializers.Skip(1).Select(_ => SyntaxFactory.Token(SyntaxKind.CommaToken))))); }
public virtual LocalDeclarationStatementSyntax GetSyntax() { if (BodyParams.FirstOrDefault()?.ReplaceBody == true) { // this is a replace body return(SyntaxFactory.LocalDeclarationStatement( SyntaxFactory.VariableDeclaration( SyntaxFactory.IdentifierName("var")) .WithVariables( SyntaxFactory.SingletonSeparatedList <VariableDeclaratorSyntax>( SyntaxFactory.VariableDeclarator( SyntaxFactory.Identifier(Name)) .WithInitializer( SyntaxFactory.EqualsValueClause( SyntaxFactory.IdentifierName(BodyParams.FirstOrDefault()?.Key))))))); } ExpressionSyntax objectCreation; if (BodyType == "Annonymous") { var anonPropList = new List <SyntaxNodeOrToken>(); BodyParams.Select(b => { return(b.CallContext != null ? SyntaxFactory.AnonymousObjectMemberDeclarator( SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(b.CallContext), SyntaxFactory.IdentifierName(b.Key))) .WithNameEquals( SyntaxFactory.NameEquals( SyntaxFactory.IdentifierName(b.FieldName))) : SyntaxFactory.AnonymousObjectMemberDeclarator( SyntaxFactory.IdentifierName(b.Key)) .WithNameEquals( SyntaxFactory.NameEquals( SyntaxFactory.IdentifierName(b.Key)))); }) .ToList() .ForEach(b => { anonPropList.Add(b); anonPropList.Add(SyntaxFactory.Token(SyntaxKind.CommaToken)); }); objectCreation = SyntaxFactory.AnonymousObjectCreationExpression( SyntaxFactory.SeparatedList <AnonymousObjectMemberDeclaratorSyntax>( anonPropList.ToArray() )); } else { var propList = new List <SyntaxNodeOrToken>(); BodyParams.Select(b => { return(b.CallContext != null ? SyntaxFactory.AssignmentExpression( SyntaxKind.SimpleAssignmentExpression, SyntaxFactory.IdentifierName(b.Key), SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(b.CallContext), SyntaxFactory.IdentifierName(b.Key) )) : SyntaxFactory.AssignmentExpression( SyntaxKind.SimpleAssignmentExpression, SyntaxFactory.IdentifierName(b.Key), SyntaxFactory.IdentifierName(b.Key))); }) .ToList() .ForEach(b => { propList.Add(b); propList.Add(SyntaxFactory.Token(SyntaxKind.CommaToken)); }); objectCreation = SyntaxFactory.ObjectCreationExpression( SyntaxFactory.IdentifierName(BodyType)) .WithInitializer( SyntaxFactory.InitializerExpression( SyntaxKind.ObjectInitializerExpression, SyntaxFactory.SeparatedList <ExpressionSyntax>( propList.ToArray() ))); } return(SyntaxFactory.LocalDeclarationStatement( SyntaxFactory.VariableDeclaration( SyntaxFactory.IdentifierName("var")) .WithVariables( SyntaxFactory.SingletonSeparatedList <VariableDeclaratorSyntax>( SyntaxFactory.VariableDeclarator( SyntaxFactory.Identifier(Name)) .WithInitializer( SyntaxFactory.EqualsValueClause( objectCreation )))))); }
/// <summary> /// Creates an argument that creates a lambda expression for extracting the key from a class. /// </summary> /// <param name="uniqueKeyElement">The unique key element.</param> /// <param name="isAnonymous">Indicates we should create an anonymous key for Entity Framework.</param> /// <returns>An argument that extracts a key from an object.</returns> public static ExpressionSyntax GetUniqueKey(UniqueElement uniqueKeyElement, bool isAnonymous = false) { // Used as a variable when constructing the lambda expression. string abbreviation = uniqueKeyElement.Table.Name[0].ToString(CultureInfo.InvariantCulture).ToLowerInvariant(); // This will create an expression for extracting the key from record. CSharpSyntaxNode syntaxNode = null; if (uniqueKeyElement.Columns.Count == 1) { // A simple key can be used like a value type. syntaxNode = SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(abbreviation), SyntaxFactory.IdentifierName(uniqueKeyElement.Columns[0].Column.Name)); } else { // A Compound key must be constructed from an anomymous type. List <SyntaxNodeOrToken> keyElements = new List <SyntaxNodeOrToken>(); foreach (ColumnReferenceElement columnReferenceElement in uniqueKeyElement.Columns) { if (keyElements.Count != 0) { keyElements.Add(SyntaxFactory.Token(SyntaxKind.CommaToken)); } if (isAnonymous) { keyElements.Add( SyntaxFactory.AnonymousObjectMemberDeclarator( SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(abbreviation), SyntaxFactory.IdentifierName(columnReferenceElement.Column.Name)))); } else { keyElements.Add( SyntaxFactory.Argument( SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName(abbreviation), SyntaxFactory.IdentifierName(columnReferenceElement.Column.Name)))); } } if (isAnonymous) { // b => b.BuyerId or b => new { b.BuyerId, b.ExternalId0 } syntaxNode = SyntaxFactory.AnonymousObjectCreationExpression( SyntaxFactory.SeparatedList <AnonymousObjectMemberDeclaratorSyntax>(keyElements.ToArray())); } else { // b => b.BuyerId or p => ValueTuple.Create(p.Name, p.CountryCode) syntaxNode = SyntaxFactory.InvocationExpression( SyntaxFactory.MemberAccessExpression( SyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName("ValueTuple"), SyntaxFactory.IdentifierName("Create"))) .WithArgumentList( SyntaxFactory.ArgumentList( SyntaxFactory.SeparatedList <ArgumentSyntax>(keyElements.ToArray()))); } } // this.BuyerKey = new UniqueIndex("BuyerKey").HasIndex(b => b.BuyerId); return(SyntaxFactory.SimpleLambdaExpression(SyntaxFactory.Parameter(SyntaxFactory.Identifier(abbreviation)), syntaxNode)); }