private async Task <Document> FixAllAsync(
Document document,
ImmutableArray <Diagnostic> diagnostics,
CancellationToken cancellationToken)
{
var syntaxFacts = document.GetLanguageService <ISyntaxFactsService>();
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
var editor = new SyntaxEditor(root, document.Project.Solution.Workspace);
var generator = editor.Generator;
foreach (var diagnostic in diagnostics)
{
var conditionalExpression = root.FindNode(diagnostic.AdditionalLocations[0].SourceSpan, getInnermostNodeForTie: true);
var conditionalPart = root.FindNode(diagnostic.AdditionalLocations[1].SourceSpan);
var whenPart = root.FindNode(diagnostic.AdditionalLocations[2].SourceSpan);
SyntaxNode condition, whenTrue, whenFalse;
syntaxFacts.GetPartsOfConditionalExpression(
conditionalExpression, out condition, out whenTrue, out whenFalse);
editor.ReplaceNode(conditionalExpression,
(c, g) => {
SyntaxNode currentCondition, currentWhenTrue, currentWhenFalse;
syntaxFacts.GetPartsOfConditionalExpression(
c, out currentCondition, out currentWhenTrue, out currentWhenFalse);
var currentWhenPartToCheck = whenPart == whenTrue ? currentWhenTrue : currentWhenFalse;
var match = AbstractUseNullPropagationDiagnosticAnalyzer <
TSyntaxKind, TExpressionSyntax, TConditionalExpressionSyntax,
TBinaryExpressionSyntax, TInvocationExpression, TMemberAccessExpression,
TConditionalAccessExpression, TElementAccessExpression> .GetWhenPartMatch(syntaxFacts, conditionalPart, currentWhenPartToCheck);
if (match == null)
{
return(c);
}
var newNode = CreateConditionalAccessExpression(
syntaxFacts, g, currentWhenPartToCheck, match, c);
newNode = newNode.WithTriviaFrom(c);
return(newNode);
});
}
var newRoot = editor.GetChangedRoot();
return(document.WithSyntaxRoot(newRoot));
}
private void FixConditionalExpression(
Document document,
SyntaxEditor editor,
SemanticModel semanticModel,
Diagnostic diagnostic,
SyntaxNode conditionalExpression,
CancellationToken cancellationToken)
{
var root = editor.OriginalRoot;
var syntaxFacts = document.GetRequiredLanguageService <ISyntaxFactsService>();
var generator = document.GetRequiredLanguageService <SyntaxGeneratorInternal>();
var conditionalPart = root.FindNode(diagnostic.AdditionalLocations[1].SourceSpan, getInnermostNodeForTie: true);
var whenPart = root.FindNode(diagnostic.AdditionalLocations[2].SourceSpan, getInnermostNodeForTie: true);
syntaxFacts.GetPartsOfConditionalExpression(
conditionalExpression, out var condition, out var whenTrue, out var whenFalse);
whenTrue = syntaxFacts.WalkDownParentheses(whenTrue);
whenFalse = syntaxFacts.WalkDownParentheses(whenFalse);
var whenPartIsNullable = diagnostic.Properties.ContainsKey(UseNullPropagationConstants.WhenPartIsNullable);
editor.ReplaceNode(
conditionalExpression,
(conditionalExpression, _) =>
{
syntaxFacts.GetPartsOfConditionalExpression(
conditionalExpression, out var currentCondition, out var currentWhenTrue, out var currentWhenFalse);
var currentWhenPartToCheck = whenPart == whenTrue ? currentWhenTrue : currentWhenFalse;
var match = AbstractUseNullPropagationDiagnosticAnalyzer <
TSyntaxKind, TExpressionSyntax, TStatementSyntax,
TConditionalExpressionSyntax, TBinaryExpressionSyntax, TInvocationExpressionSyntax,
TConditionalAccessExpressionSyntax, TElementAccessExpressionSyntax,
TIfStatementSyntax, TExpressionStatementSyntax> .GetWhenPartMatch(
syntaxFacts, semanticModel, (TExpressionSyntax)conditionalPart, (TExpressionSyntax)currentWhenPartToCheck, cancellationToken);
if (match == null)
{
return(conditionalExpression);
}
var newNode = CreateConditionalAccessExpression(
syntaxFacts, generator, whenPartIsNullable, currentWhenPartToCheck, match) ?? conditionalExpression;
newNode = newNode.WithTriviaFrom(conditionalExpression);
return(newNode);
});
protected override Task FixAllAsync(
Document document, ImmutableArray <Diagnostic> diagnostics,
SyntaxEditor editor, CancellationToken cancellationToken)
{
var syntaxFacts = document.GetLanguageService <ISyntaxFactsService>();
var generator = editor.Generator;
var root = editor.OriginalRoot;
foreach (var diagnostic in diagnostics)
{
var conditionalExpression = root.FindNode(diagnostic.AdditionalLocations[0].SourceSpan, getInnermostNodeForTie: true);
var conditionalPart = root.FindNode(diagnostic.AdditionalLocations[1].SourceSpan);
var whenPart = root.FindNode(diagnostic.AdditionalLocations[2].SourceSpan);
SyntaxNode condition, whenTrue, whenFalse;
syntaxFacts.GetPartsOfConditionalExpression(
conditionalExpression, out condition, out whenTrue, out whenFalse);
editor.ReplaceNode(conditionalExpression,
(c, g) => {
SyntaxNode currentCondition, currentWhenTrue, currentWhenFalse;
syntaxFacts.GetPartsOfConditionalExpression(
c, out currentCondition, out currentWhenTrue, out currentWhenFalse);
var currentWhenPartToCheck = whenPart == whenTrue ? currentWhenTrue : currentWhenFalse;
var match = AbstractUseNullPropagationDiagnosticAnalyzer <
TSyntaxKind, TExpressionSyntax, TConditionalExpressionSyntax,
TBinaryExpressionSyntax, TInvocationExpression, TMemberAccessExpression,
TConditionalAccessExpression, TElementAccessExpression> .GetWhenPartMatch(syntaxFacts, conditionalPart, currentWhenPartToCheck);
if (match == null)
{
return(c);
}
var newNode = CreateConditionalAccessExpression(
syntaxFacts, g, currentWhenPartToCheck, match, c);
newNode = newNode.WithTriviaFrom(c);
return(newNode);
});
}
return(SpecializedTasks.EmptyTask);
}
protected override async Task FixAllAsync(
Document document, ImmutableArray <Diagnostic> diagnostics,
SyntaxEditor editor, CancellationToken cancellationToken)
{
var syntaxFacts = document.GetLanguageService <ISyntaxFactsService>();
var semanticFacts = document.GetLanguageService <ISemanticFactsService>();
var semanticModel = await document.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var generator = editor.Generator;
var root = editor.OriginalRoot;
foreach (var diagnostic in diagnostics)
{
var conditionalExpression = root.FindNode(diagnostic.AdditionalLocations[0].SourceSpan, getInnermostNodeForTie: true);
var conditionalPart = root.FindNode(diagnostic.AdditionalLocations[1].SourceSpan, getInnermostNodeForTie: true);
var whenPart = root.FindNode(diagnostic.AdditionalLocations[2].SourceSpan, getInnermostNodeForTie: true);
syntaxFacts.GetPartsOfConditionalExpression(
conditionalExpression, out var condition, out var whenTrue, out var whenFalse);
var whenPartIsNullable = diagnostic.Properties.ContainsKey(UseNullPropagationConstants.WhenPartIsNullable);
editor.ReplaceNode(conditionalExpression,
(c, g) =>
{
syntaxFacts.GetPartsOfConditionalExpression(
c, out var currentCondition, out var currentWhenTrue, out var currentWhenFalse);
var currentWhenPartToCheck = whenPart == whenTrue ? currentWhenTrue : currentWhenFalse;
var match = AbstractUseNullPropagationDiagnosticAnalyzer <
TSyntaxKind, TExpressionSyntax, TConditionalExpressionSyntax,
TBinaryExpressionSyntax, TInvocationExpression, TMemberAccessExpression,
TConditionalAccessExpression, TElementAccessExpression> .GetWhenPartMatch(syntaxFacts, semanticFacts, semanticModel, conditionalPart, currentWhenPartToCheck);
if (match == null)
{
return(c);
}
var newNode = CreateConditionalAccessExpression(
syntaxFacts, g, whenPartIsNullable, currentWhenPartToCheck, match, c);
newNode = newNode.WithTriviaFrom(c);
return(newNode);
});
