protected void IterateAll(string code)
{
using (var workspace = CSharpWorkspaceFactory.CreateWorkspaceFromLines(new string[] { code }, CodeAnalysis.CSharp.Test.Utilities.TestOptions.Regular))
{
var document = workspace.CurrentSolution.GetDocument(workspace.Documents.First().Id);
Assert.NotNull(document);
var semanticDocument = SemanticDocument.CreateAsync(document, CancellationToken.None).Result;
var tree = document.GetSyntaxTreeAsync().Result;
var iterator = tree.GetRoot().DescendantNodesAndSelf().Cast <SyntaxNode>();
var options = document.Project.Solution.Workspace.Options
.WithChangedOption(ExtractMethodOptions.AllowMovingDeclaration, document.Project.Language, true);
foreach (var node in iterator)
{
try
{
var validator = new CSharpSelectionValidator(semanticDocument, node.Span, options);
var result = validator.GetValidSelectionAsync(CancellationToken.None).Result;
// check the obvious case
if (!(node is ExpressionSyntax) && !node.UnderValidContext())
{
Assert.True(result.Status.FailedWithNoBestEffortSuggestion());
}
}
catch (ArgumentException)
{
// catch and ignore unknown issue. currently control flow analysis engine doesn't support field initializer.
}
}
}
}
protected static async Task IterateAllAsync(string code)
{
using var workspace = TestWorkspace.CreateCSharp(code, CodeAnalysis.CSharp.Test.Utilities.TestOptions.Regular);
var document = workspace.CurrentSolution.GetDocument(workspace.Documents.First().Id);
Assert.NotNull(document);
var semanticDocument = await SemanticDocument.CreateAsync(document, CancellationToken.None);
var root = await document.GetSyntaxRootAsync();
var iterator = root.DescendantNodesAndSelf().Cast <SyntaxNode>();
var originalOptions = await document.GetOptionsAsync();
foreach (var node in iterator)
{
var validator = new CSharpSelectionValidator(semanticDocument, node.Span, originalOptions);
var result = await validator.GetValidSelectionAsync(CancellationToken.None);
// check the obvious case
if (!(node is ExpressionSyntax) && !node.UnderValidContext())
{
Assert.True(result.Status.FailedWithNoBestEffortSuggestion());
}
}
}
protected void TestSelection(string codeWithMarker, bool expectedFail = false, CSharpParseOptions parseOptions = null)
{
using (var workspace = CSharpWorkspaceFactory.CreateWorkspaceFromLines(new[] { codeWithMarker }, parseOptions: parseOptions))
{
var testDocument = workspace.Documents.Single();
var namedSpans = testDocument.AnnotatedSpans;
var document = workspace.CurrentSolution.GetDocument(testDocument.Id);
Assert.NotNull(document);
var options = document.Project.Solution.Workspace.Options
.WithChangedOption(ExtractMethodOptions.AllowMovingDeclaration, document.Project.Language, true);
var semanticDocument = SemanticDocument.CreateAsync(document, CancellationToken.None).Result;
var validator = new CSharpSelectionValidator(semanticDocument, namedSpans["b"].Single(), options);
var result = validator.GetValidSelectionAsync(CancellationToken.None).Result;
Assert.True(expectedFail ? result.Status.Failed() : result.Status.Succeeded());
if ((result.Status.Succeeded() || result.Status.Flag.HasBestEffort()) && result.Status.Flag.HasSuggestion())
{
Assert.Equal(namedSpans["r"].Single(), result.FinalSpan);
}
}
}
public static async Task <bool> IsValid(MonoDevelop.Ide.Gui.Document doc, CancellationToken cancellationToken = default(CancellationToken))
{
if (doc == null)
{
return(false);
}
if (doc.Editor == null || !doc.Editor.IsSomethingSelected)
{
return(false);
}
var ad = doc.AnalysisDocument;
if (ad == null)
{
return(false);
}
var selectionRange = doc.Editor.SelectionRange;
try {
var selection = new CSharpSelectionValidator(await SemanticDocument.CreateAsync(ad, cancellationToken).ConfigureAwait(false), new TextSpan(selectionRange.Offset, selectionRange.Length), doc.GetOptionSet());
var result = await selection.GetValidSelectionAsync(cancellationToken).ConfigureAwait(false);
return(result.ContainsValidContext);
} catch (Exception) {
return(false);
}
}
protected static async Task <SyntaxNode> ExtractMethodAsync(
TestWorkspace workspace,
TestHostDocument testDocument,
bool succeed = true,
bool dontPutOutOrRefOnStruct = true,
bool allowBestEffort = false
)
{
var document = workspace.CurrentSolution.GetDocument(testDocument.Id);
Assert.NotNull(document);
var originalOptions = await document.GetOptionsAsync();
var options = originalOptions.WithChangedOption(
ExtractMethodOptions.DontPutOutOrRefOnStruct,
document.Project.Language,
dontPutOutOrRefOnStruct
);
var semanticDocument = await SemanticDocument.CreateAsync(
document,
CancellationToken.None
);
var validator = new CSharpSelectionValidator(
semanticDocument,
testDocument.SelectedSpans.Single(),
options
);
var selectedCode = await validator.GetValidSelectionAsync(CancellationToken.None);
if (!succeed && selectedCode.Status.FailedWithNoBestEffortSuggestion())
{
return(null);
}
Assert.True(selectedCode.ContainsValidContext);
// extract method
var extractor = new CSharpMethodExtractor(
(CSharpSelectionResult)selectedCode,
localFunction: false
);
var result = await extractor.ExtractMethodAsync(CancellationToken.None);
Assert.NotNull(result);
Assert.Equal(
succeed,
result.Succeeded ||
result.SucceededWithSuggestion ||
(allowBestEffort && result.Status.HasBestEffort())
);
var doc = result.Document;
return(doc == null ? null : await doc.GetSyntaxRootAsync());
}
public async static Task Run(MonoDevelop.Ide.Gui.Document doc)
{
if (!doc.Editor.IsSomethingSelected)
{
return;
}
var ad = doc.AnalysisDocument;
if (ad == null || !await IsValid(doc))
{
return;
}
try {
var selectionRange = doc.Editor.SelectionRange;
var token = default(CancellationToken);
var selection = new CSharpSelectionValidator(await SemanticDocument.CreateAsync(ad, token).ConfigureAwait(false), new TextSpan(selectionRange.Offset, selectionRange.Length), doc.GetOptionSet());
var result = await selection.GetValidSelectionAsync(token).ConfigureAwait(false);
if (!result.ContainsValidContext)
{
return;
}
var extractor = new CSharpMethodExtractor((CSharpSelectionResult)result);
var extractionResult = await extractor.ExtractMethodAsync(token).ConfigureAwait(false);
var changes = await extractionResult.Document.GetTextChangesAsync(ad, token);
using (var undo = doc.Editor.OpenUndoGroup()) {
foreach (var change in changes.OrderByDescending(ts => ts.Span.Start))
{
doc.Editor.ReplaceText(change.Span.Start, change.Span.Length, change.NewText);
}
// hack to remove the redundant private modifier.
if (doc.Editor.GetTextAt(extractionResult.MethodDeclarationNode.SpanStart, "private ".Length) == "private ")
{
doc.Editor.RemoveText(extractionResult.MethodDeclarationNode.SpanStart, "private ".Length);
}
}
await doc.UpdateParseDocument();
var info = RefactoringSymbolInfo.GetSymbolInfoAsync(doc, extractionResult.InvocationNameToken.Span.Start).Result;
var sym = info.DeclaredSymbol ?? info.Symbol;
if (sym != null)
{
await new MonoDevelop.Refactoring.Rename.RenameRefactoring().Rename(sym);
}
}
catch (Exception e) {
LoggingService.LogError("Error while extracting method", e);
}
}
protected static async Task <SyntaxNode> ExtractMethodAsync(
TestWorkspace workspace,
TestHostDocument testDocument,
bool succeed = true,
bool dontPutOutOrRefOnStruct = true,
bool allowBestEffort = false)
{
var document = workspace.CurrentSolution.GetDocument(testDocument.Id);
Assert.NotNull(document);
var options = new ExtractMethodGenerationOptions(
ExtractOptions: new ExtractMethodOptions(dontPutOutOrRefOnStruct),
CodeGenerationOptions: CodeGenerationOptions.GetDefault(document.Project.LanguageServices),
AddImportOptions: AddImportPlacementOptions.Default,
NamingPreferences: _ => NamingStylePreferences.Default);
var semanticDocument = await SemanticDocument.CreateAsync(document, CancellationToken.None);
var validator = new CSharpSelectionValidator(semanticDocument, testDocument.SelectedSpans.Single(), options.ExtractOptions, localFunction: false);
var selectedCode = await validator.GetValidSelectionAsync(CancellationToken.None);
if (!succeed && selectedCode.Status.FailedWithNoBestEffortSuggestion())
{
return(null);
}
Assert.True(selectedCode.ContainsValidContext);
// extract method
var extractor = new CSharpMethodExtractor((CSharpSelectionResult)selectedCode, options, localFunction: false);
var result = await extractor.ExtractMethodAsync(CancellationToken.None);
Assert.NotNull(result);
Assert.Equal(succeed,
result.Succeeded ||
result.SucceededWithSuggestion ||
(allowBestEffort && result.Status.HasBestEffort()));
var(doc, _) = await result.GetFormattedDocumentAsync(CodeCleanupOptions.GetDefault(document.Project.LanguageServices), CancellationToken.None);
return(doc == null
? null
: await doc.GetSyntaxRootAsync());
}
protected static async Task TestSelectionAsync(
string codeWithMarker,
bool expectedFail = false,
CSharpParseOptions parseOptions = null,
TextSpan?textSpanOverride = null
)
{
using var workspace = TestWorkspace.CreateCSharp(
codeWithMarker,
parseOptions: parseOptions
);
var testDocument = workspace.Documents.Single();
var namedSpans = testDocument.AnnotatedSpans;
var document = workspace.CurrentSolution.GetDocument(testDocument.Id);
Assert.NotNull(document);
var options = await document.GetOptionsAsync(CancellationToken.None);
var semanticDocument = await SemanticDocument.CreateAsync(
document,
CancellationToken.None
);
var validator = new CSharpSelectionValidator(
semanticDocument,
textSpanOverride ?? namedSpans["b"].Single(),
options
);
var result = await validator.GetValidSelectionAsync(CancellationToken.None);
Assert.True(expectedFail ? result.Status.Failed() : result.Status.Succeeded());
if (
(result.Status.Succeeded() || result.Status.Flag.HasBestEffort()) &&
result.Status.Flag.HasSuggestion()
)
{
Assert.Equal(namedSpans["r"].Single(), result.FinalSpan);
}
}
protected static SyntaxNode ExtractMethod(
TestWorkspace workspace,
TestHostDocument testDocument,
bool succeed = true,
bool allowMovingDeclaration = true,
bool dontPutOutOrRefOnStruct = true)
{
var document = workspace.CurrentSolution.GetDocument(testDocument.Id);
Assert.NotNull(document);
var options = document.Project.Solution.Workspace.Options
.WithChangedOption(ExtractMethodOptions.AllowMovingDeclaration, document.Project.Language, allowMovingDeclaration)
.WithChangedOption(ExtractMethodOptions.DontPutOutOrRefOnStruct, document.Project.Language, dontPutOutOrRefOnStruct);
var semanticDocument = SemanticDocument.CreateAsync(document, CancellationToken.None).Result;
var validator = new CSharpSelectionValidator(semanticDocument, testDocument.SelectedSpans.Single(), options);
var selectedCode = validator.GetValidSelectionAsync(CancellationToken.None).Result;
if (!succeed && selectedCode.Status.FailedWithNoBestEffortSuggestion())
{
return(null);
}
Assert.True(selectedCode.ContainsValidContext);
// extract method
var extractor = new CSharpMethodExtractor((CSharpSelectionResult)selectedCode);
var result = extractor.ExtractMethodAsync(CancellationToken.None).Result;
Assert.NotNull(result);
Assert.Equal(succeed, result.Succeeded || result.SucceededWithSuggestion);
return((SyntaxNode)result.Document.GetSyntaxRootAsync().Result);
}