public static async Task <Document> RefactorAsync(
Document document,
InvocationExpressionSyntax invocationExpression,
CancellationToken cancellationToken)
{
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
MemberDeclarationSyntax memberDeclaration = invocationExpression.FirstAncestor <MemberDeclarationSyntax>();
Debug.Assert(memberDeclaration != null, "");
if (memberDeclaration != null)
{
BaseTypeDeclarationSyntax typeDeclaration = memberDeclaration.FirstAncestor <BaseTypeDeclarationSyntax>();
Debug.Assert(typeDeclaration != null, "");
if (typeDeclaration != null)
{
MemberInvocationExpression memberInvocation = MemberInvocationExpression.Create(invocationExpression);
string fieldName = NameGenerator.Default.EnsureUniqueLocalName("_regex", semanticModel, invocationExpression.SpanStart, cancellationToken: cancellationToken);
MemberAccessExpressionSyntax newMemberAccess = memberInvocation.MemberAccessExpression.WithExpression(IdentifierName(Identifier(fieldName).WithRenameAnnotation()));
ArgumentListPair pair = RewriteArgumentLists(memberInvocation.ArgumentList, semanticModel, cancellationToken);
InvocationExpressionSyntax newInvocationExpression = invocationExpression
.WithExpression(newMemberAccess)
.WithArgumentList(pair.ArgumentList1);
MemberDeclarationSyntax newTypeDeclaration = typeDeclaration.ReplaceNode(invocationExpression, newInvocationExpression);
TypeSyntax regexType = semanticModel.GetTypeByMetadataName(MetadataNames.System_Text_RegularExpressions_Regex).ToMinimalTypeSyntax(semanticModel, typeDeclaration.SpanStart);
FieldDeclarationSyntax fieldDeclaration = FieldDeclaration(
(ShouldBeStatic(memberDeclaration, semanticModel, cancellationToken))
? Modifiers.PrivateStaticReadOnly()
: Modifiers.PrivateReadOnly(),
regexType,
Identifier(fieldName),
EqualsValueClause(
ObjectCreationExpression(regexType, pair.ArgumentList2)));
SyntaxList <MemberDeclarationSyntax> newMembers = newTypeDeclaration
.GetMembers()
.InsertMember(fieldDeclaration, MemberDeclarationComparer.ByKind);
newTypeDeclaration = newTypeDeclaration.WithMembers(newMembers);
return(await document.ReplaceNodeAsync(typeDeclaration, newTypeDeclaration, cancellationToken).ConfigureAwait(false));
}
}
return(document);
}
public static async Task <Document> RefactorAsync(
Document document,
InvocationExpressionSyntax invocationExpression,
CancellationToken cancellationToken)
{
SemanticModel semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
MemberDeclarationSyntax memberDeclaration = invocationExpression.FirstAncestor <MemberDeclarationSyntax>();
Debug.Assert(memberDeclaration != null, "");
if (memberDeclaration != null)
{
TypeDeclarationSyntax typeDeclaration = memberDeclaration.FirstAncestor <TypeDeclarationSyntax>();
Debug.Assert(typeDeclaration != null, "");
if (typeDeclaration != null)
{
SimpleMemberInvocationExpressionInfo invocationInfo = SyntaxInfo.SimpleMemberInvocationExpressionInfo(invocationExpression);
string fieldName = NameGenerator.Default.EnsureUniqueLocalName("_regex", semanticModel, invocationExpression.SpanStart, cancellationToken: cancellationToken);
MemberAccessExpressionSyntax newMemberAccess = invocationInfo.MemberAccessExpression.WithExpression(IdentifierName(Identifier(fieldName).WithRenameAnnotation()));
ArgumentListPair pair = RewriteArgumentLists(invocationInfo.ArgumentList, semanticModel, cancellationToken);
InvocationExpressionSyntax newInvocationExpression = invocationExpression
.WithExpression(newMemberAccess)
.WithArgumentList(pair.ArgumentList1);
TypeDeclarationSyntax newTypeDeclaration = typeDeclaration.ReplaceNode(invocationExpression, newInvocationExpression);
TypeSyntax regexType = ParseTypeName("System.Text.RegularExpressions.Regex").WithSimplifierAnnotation();
FieldDeclarationSyntax fieldDeclaration = FieldDeclaration(
Modifiers.Private_Static_ReadOnly(),
regexType,
Identifier(fieldName),
EqualsValueClause(
ObjectCreationExpression(regexType, pair.ArgumentList2)));
SyntaxList <MemberDeclarationSyntax> newMembers = MemberDeclarationInserter.Default.Insert(newTypeDeclaration.Members, fieldDeclaration);
newTypeDeclaration = newTypeDeclaration.WithMembers(newMembers);
return(await document.ReplaceNodeAsync(typeDeclaration, newTypeDeclaration, cancellationToken).ConfigureAwait(false));
}
}
return(document);
}
