private ExpressionSyntax BuildXmlnsAttributeName(IdentifierNameSyntax fieldIdentifierName)
{
var xmlns = SyntaxFactory.MemberAccessExpression(CSSyntaxKind.SimpleMemberAccessExpression, SyntaxFactory.IdentifierName("XNamespace"), SyntaxFactory.IdentifierName("Xmlns"));
return(SyntaxFactory.BinaryExpression(CSSyntaxKind.AddExpression, xmlns, CommonConversions.Literal(fieldIdentifierName.Identifier.ValueText)));
}
public ClassDeclarationSyntax GenerateHelper()
{
if (!HasImports)
{
return(null);
}
var xAttributeList = SyntaxFactory.FieldDeclaration(
SyntaxFactory.List <AttributeListSyntax>(),
SyntaxFactory.TokenList(SyntaxFactory.Token(CSSyntaxKind.PrivateKeyword), SyntaxFactory.Token(CSSyntaxKind.StaticKeyword)),
CommonConversions.CreateVariableDeclarationAndAssignment(
"namespaceAttributes", SyntaxFactory.InitializerExpression(
CSSyntaxKind.ArrayInitializerExpression,
SyntaxFactory.SeparatedList <ExpressionSyntax>(
from x in _xNamespaceFields
let fieldIdentifierName = SyntaxFactory.IdentifierName(x.Declaration.Variables.Single().Identifier)
let namespaceNameExpression = SyntaxFactory.MemberAccessExpression(CSSyntaxKind.SimpleMemberAccessExpression, fieldIdentifierName, SyntaxFactory.IdentifierName("NamespaceName"))
let attributeNameExpression = fieldIdentifierName.IsEquivalentTo(DefaultIdentifierName) ? CommonConversions.Literal("xmlns") : BuildXmlnsAttributeName(fieldIdentifierName)
let arguments = SyntaxFactory.Argument(attributeNameExpression).Yield().Concat(SyntaxFactory.Argument(namespaceNameExpression))
select SyntaxFactory.ObjectCreationExpression(SyntaxFactory.IdentifierName("XAttribute")).WithArgumentList(SyntaxFactory.ArgumentList(SyntaxFactory.SeparatedList(arguments))))),
SyntaxFactory.ArrayType(SyntaxFactory.IdentifierName("XAttribute"), SyntaxFactory.SingletonList(SyntaxFactory.ArrayRankSpecifier(SyntaxFactory.SingletonSeparatedList <ExpressionSyntax>(SyntaxFactory.OmittedArraySizeExpression()))))));
var boilerplate = SyntaxFactory.ParseStatement(@"
TContainer Apply<TContainer>(TContainer x) where TContainer : XContainer
{
foreach (var d in x.Descendants()) {
foreach (var n in namespaceAttributes) {
var a = d.Attribute(n.Name);
if (a != null && a.Value == n.Value) {
a.Remove();
}
}
}
x.Add(namespaceAttributes);
return x;
}") as LocalFunctionStatementSyntax;
var applyMethod = SyntaxFactory.MethodDeclaration(
SyntaxFactory.List <AttributeListSyntax>(),
SyntaxFactory.TokenList(SyntaxFactory.Token(CSSyntaxKind.InternalKeyword), SyntaxFactory.Token(CSSyntaxKind.StaticKeyword)),
boilerplate.ReturnType,
null,
boilerplate.Identifier,
boilerplate.TypeParameterList,
boilerplate.ParameterList,
boilerplate.ConstraintClauses,
boilerplate.Body,
boilerplate.ExpressionBody);
return(SyntaxFactory.ClassDeclaration(
SyntaxFactory.List <AttributeListSyntax>(),
SyntaxFactory.TokenList(SyntaxFactory.Token(CSSyntaxKind.InternalKeyword), SyntaxFactory.Token(CSSyntaxKind.StaticKeyword)),
HelperClassUniqueIdentifierName.Identifier,
null, null,
SyntaxFactory.List <TypeParameterConstraintClauseSyntax>(),
SyntaxFactory.List(_xNamespaceFields.Concat <MemberDeclarationSyntax>(xAttributeList).Concat(applyMethod))
));
}
private async Task <SyntaxList <StatementSyntax> > AddLocalVariablesAsync(VBasic.VisualBasicSyntaxNode node, VBasic.SyntaxKind exitableType = default, bool isBreakableInCs = false)
{
_additionalLocals.PushScope(exitableType, isBreakableInCs);
try {
var convertedStatements = await _wrappedVisitor.Visit(node);
var withLocals = await _additionalLocals.CreateLocalsAsync(node, convertedStatements, _generatedNames, _semanticModel);
var allStatements = _additionalLocals.CreateStatements(node, withLocals, _generatedNames, _semanticModel);
if (isBreakableInCs && exitableType == VBasic.SyntaxKind.TryKeyword)
{
var doOnce = SyntaxFactory.DoStatement(SyntaxFactory.Block(allStatements), CommonConversions.Literal(false));
allStatements = SyntaxFactory.SingletonList <StatementSyntax>(doOnce);
}
return(allStatements);
} finally {
_additionalLocals.PopScope();
}
}