public void TCheckForUnresolvedDependencies_CircularDependency_DoesNotRecurseInfinitely()
{
const string id1 = @"tfm1\xxx\dependency1";
const string id2 = @"tfm1\xxx\dependency2";
const string providerType = "Xxx";
var dependency1 = new TestDependency
{
Id = id1,
ProviderType = providerType,
TopLevel = true,
DependencyIDs = ImmutableList.Create(id2)
};
var dependency2 = new TestDependency
{
Id = id2,
ProviderType = providerType,
TopLevel = true,
DependencyIDs = ImmutableList.Create(id1)
};
var snapshot = new TargetedDependenciesSnapshot(
"ProjectPath",
TargetFramework.Any,
catalogs: null,
dependenciesWorld: new IDependency[] { dependency1, dependency2 }.ToDictionary(d => d.Id).ToImmutableDictionary());
// verify it doesn't stack overflow
snapshot.CheckForUnresolvedDependencies(dependency1);
}
public void TCheckForUnresolvedDependencies_CircularDependency_DoesNotRecurseInfinitely()
{
var dependencyTop1 = IDependencyFactory.FromJson(@"
{
""ProviderType"": ""Xxx"",
""Id"": ""tfm1\\xxx\\topdependency1"",
""Name"":""TopDependency1"",
""Caption"":""TopDependency1"",
""SchemaItemType"":""Xxx"",
""Resolved"":""true"",
""TopLevel"":""true"",
""DependencyIDs"": [ ""tfm1\\xxx\\topdependency2"" ]
}",
icon: KnownMonikers.Uninstall,
expandedIcon: KnownMonikers.Uninstall);
var dependencyTop2 = IDependencyFactory.FromJson(@"
{
""ProviderType"": ""Xxx"",
""Id"": ""tfm1\\xxx\\topdependency2"",
""Name"":""TopDependency2"",
""Caption"":""TopDependency2"",
""SchemaItemType"":""Xxx"",
""Resolved"":""true"",
""TopLevel"":""false"",
""DependencyIDs"": [ ""tfm1\\xxx\\topdependency1"" ]
}",
icon: KnownMonikers.Uninstall,
expandedIcon: KnownMonikers.Uninstall);
var previousSnapshot = new TargetedDependenciesSnapshot(
"ProjectPath",
TargetFramework.Any,
catalogs: null,
dependenciesWorld: new Dictionary <string, IDependency>()
{
{ dependencyTop1.Id, dependencyTop1 },
{ dependencyTop2.Id, dependencyTop2 },
}.ToImmutableDictionary());
// verify it doesn't stack overflow
previousSnapshot.CheckForUnresolvedDependencies(dependencyTop1);
}
/// <summary>
/// Builds all available sub trees under root: target framework or Dependencies node
/// when there is only one target.
/// </summary>
private async Task <IProjectTree> BuildSubTreesAsync(
IProjectTree rootNode,
ITargetFramework activeTarget,
TargetedDependenciesSnapshot targetedSnapshot,
Func <IProjectTree, HashSet <IProjectTree>, IProjectTree> syncFunc)
{
var groupedByProviderType = new Dictionary <string, List <IDependency> >(StringComparers.DependencyProviderTypes);
foreach (IDependency dependency in targetedSnapshot.TopLevelDependencies)
{
if (!dependency.Visible)
{
// If a dependency is not visible we will still register a top-level group if it
// has the ShowEmptyProviderRootNode flag.
if (!dependency.Flags.Contains(DependencyTreeFlags.ShowEmptyProviderRootNode))
{
// No such flag, so skip it completely.
continue;
}
}
if (!groupedByProviderType.TryGetValue(dependency.ProviderType, out List <IDependency> dependencies))
{
dependencies = new List <IDependency>();
groupedByProviderType.Add(dependency.ProviderType, dependencies);
}
// Only add visible dependencies. See note above.
if (dependency.Visible)
{
dependencies.Add(dependency);
}
}
var currentNodes = new HashSet <IProjectTree>(capacity: groupedByProviderType.Count);
bool isActiveTarget = targetedSnapshot.TargetFramework.Equals(activeTarget);
foreach ((string providerType, List <IDependency> dependencies) in groupedByProviderType)
{
IDependencyViewModel?subTreeViewModel = _viewModelFactory.CreateRootViewModel(
providerType,
targetedSnapshot.CheckForUnresolvedDependencies(providerType));
if (subTreeViewModel == null)
{
// In theory this should never happen, as it means we have a dependency model of a type
// that no provider claims. https://github.com/dotnet/project-system/issues/3653
continue;
}
IProjectTree?subTreeNode = rootNode.FindChildWithCaption(subTreeViewModel.Caption);
bool isNewSubTreeNode = subTreeNode == null;
ProjectTreeFlags excludedFlags = targetedSnapshot.TargetFramework.Equals(TargetFramework.Any)
? ProjectTreeFlags.Create(ProjectTreeFlags.Common.BubbleUp)
: ProjectTreeFlags.Empty;
subTreeNode = CreateOrUpdateNode(
subTreeNode,
subTreeViewModel,
browseObjectProperties: null,
isProjectItem: false,
excludedFlags: excludedFlags);
subTreeNode = await BuildSubTreeAsync(
subTreeNode,
targetedSnapshot,
dependencies,
isActiveTarget,
shouldCleanup : !isNewSubTreeNode);
currentNodes.Add(subTreeNode);
rootNode = isNewSubTreeNode
? rootNode.Add(subTreeNode).Parent !
: subTreeNode.Parent !;
Assumes.NotNull(rootNode);
}
return(syncFunc(rootNode, currentNodes));
}