private async Task <Solution?> FixAllContextsAsync(
FixAllContext originalFixAllContext,
ImmutableArray <FixAllContext> fixAllContexts)
{
var cancellationToken = originalFixAllContext.CancellationToken;
var progressTracker = originalFixAllContext.GetProgressTracker();
progressTracker.Description = originalFixAllContext.GetDefaultFixAllTitle();
// We have 2*P + 1 pieces of work. Computing diagnostics and fixes/changes per context, and then one pass
// applying fixes.
progressTracker.AddItems(fixAllContexts.Length * 2 + 1);
// Mapping from document to the cumulative text changes created for that document.
var docIdToTextMerger = new Dictionary <DocumentId, TextChangeMerger>();
// Process each context one at a time, allowing us to dump most of the information we computed for each once
// done with it. The only information we need to preserve is the data we store in docIdToTextMerger
foreach (var fixAllContext in fixAllContexts)
{
Contract.ThrowIfFalse(fixAllContext.Scope is FixAllScope.Document or
FixAllScope.Project or FixAllScope.ContainingMember or FixAllScope.ContainingType);
await FixSingleContextAsync(fixAllContext, progressTracker, docIdToTextMerger).ConfigureAwait(false);
}
// Finally, merge in all text changes into the solution. We can't do this per-project as we have to have
// process *all* diagnostics in the solution to find the changes made to all documents.
using (progressTracker.ItemCompletedScope())
{
if (docIdToTextMerger.Count == 0)
{
return(null);
}
var currentSolution = originalFixAllContext.Solution;
foreach (var group in docIdToTextMerger.GroupBy(kvp => kvp.Key.ProjectId))
{
currentSolution = await ApplyChangesAsync(currentSolution, group.SelectAsArray(kvp => (kvp.Key, kvp.Value)), cancellationToken).ConfigureAwait(false);
}
return(currentSolution);
}
}
public override Task <CodeAction?> GetFixAsync(FixAllContext fixAllContext)
=> DefaultFixAllProviderHelpers.GetFixAsync(
fixAllContext.GetDefaultFixAllTitle(), fixAllContext, FixAllContextsAsync);
/// <summary> /// Produce a suitable title for the fix-all <see cref="CodeAction"/> this type creates in <see /// cref="GetFixAsync(FixAllContext)"/>. Override this if customizing that title is desired. /// </summary> protected virtual string GetFixAllTitle(FixAllContext fixAllContext) => fixAllContext.GetDefaultFixAllTitle();
