Esempio n. 1
0
 public FilePreviewItem(PreviewChangesEngine engine, string file) {
     Filename = file;
     _engine = engine;
     do {
         _tempFileName = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()) + ".py";
     } while (File.Exists(_tempFileName));
 }
Esempio n. 2
0
 public FilePreviewItem(PreviewChangesEngine engine, string file)
 {
     Filename = file;
     _engine  = engine;
     do
     {
         _tempFileName = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()) + ".py";
     } while (File.Exists(_tempFileName));
 }
Esempio n. 3
0
        public async Task RenameVariable(IRenameVariableInput input, IVsPreviewChangesService previewChanges)
        {
            if (IsModuleName(input))
            {
                input.CannotRename(Strings.RenameVariable_CannotRenameModuleName);
                return;
            }

            var caret  = _view.GetPythonCaret();
            var entry  = _view.GetAnalysisAtCaret(_serviceProvider);
            var buffer = entry?.TryGetBufferParser()?.DefaultBufferInfo ?? PythonTextBufferInfo.TryGetForBuffer(_view.TextBuffer);

            if (caret == null || entry == null || buffer == null)
            {
                input.CannotRename(Strings.RenameVariable_UnableGetAnalysisCurrentTextView);
                return;
            }
            var analysis = await entry.Analyzer.AnalyzeExpressionAsync(entry, caret.Value, ExpressionAtPointPurpose.Rename);

            if (analysis == null || string.IsNullOrEmpty(analysis.Expression) || !(analysis.Variables?.Any() ?? false))
            {
                input.CannotRename(Strings.RenameVariable_UnableGetExpressionAnalysis);
                return;
            }

            string privatePrefix = analysis.PrivatePrefix;
            var    originalName  = analysis.Variables
                                   .Where(r => r.Type == VariableType.Definition)
                                   .Where(r => r.Location.DocumentUri == buffer.DocumentUri && buffer.LocationTracker.CanTranslateFrom(r.Version ?? -1))
                                   .Select(r => {
                var snapshot = buffer.CurrentSnapshot;
                try {
                    return(buffer.LocationTracker.Translate(r.Location.Span, r.Version ?? -1, snapshot).GetText());
                } catch (ArgumentException) {
                    return(null);
                }
            })
                                   .Where(n => !string.IsNullOrEmpty(n))
                                   .FirstOrDefault() ?? analysis.Expression;

            if (analysis.PrivatePrefix != null && originalName != null && originalName.StartsWithOrdinal("_" + analysis.PrivatePrefix))
            {
                originalName  = originalName.Substring(analysis.PrivatePrefix.Length + 1);
                privatePrefix = analysis.PrivatePrefix;
            }

            if (originalName != null && _view.Selection.IsActive && !_view.Selection.IsEmpty)
            {
                if (_view.Selection.Start.Position < analysis.Span.GetStartPoint(_view.TextBuffer.CurrentSnapshot) ||
                    _view.Selection.End.Position > analysis.Span.GetEndPoint(_view.TextBuffer.CurrentSnapshot))
                {
                    originalName = null;
                }
            }

            if (originalName == null)
            {
                input.CannotRename(Strings.RenameVariable_SelectSymbol);
                return;
            }

            if (!analysis.Variables.Any(v => v.Type == VariableType.Definition || v.Type == VariableType.Reference))
            {
                input.CannotRename(Strings.RenameVariable_NoInformationAvailableForVariable.FormatUI(originalName));
                return;
            }

            PythonLanguageVersion languageVersion = PythonLanguageVersion.None;
            var analyzer = _view.GetAnalyzerAtCaret(_serviceProvider);
            var factory  = analyzer != null ? analyzer.InterpreterFactory : null;

            if (factory != null)
            {
                languageVersion = factory.Configuration.Version.ToLanguageVersion();
            }

            var info = input.GetRenameInfo(originalName, languageVersion);

            if (info != null)
            {
                var engine = new PreviewChangesEngine(_serviceProvider, input, analysis.Expression, info, originalName, privatePrefix, _view.GetAnalyzerAtCaret(_serviceProvider), analysis.Variables);
                if (info.Preview)
                {
                    previewChanges.PreviewChanges(engine);
                }
                else
                {
                    ErrorHandler.ThrowOnFailure(engine.ApplyChanges());
                }
            }
        }
        public void RenameVariable(IRenameVariableInput input, IVsPreviewChangesService previewChanges)
        {
            if (IsModuleName(input))
            {
                input.CannotRename("Cannot rename a module name");
                return;
            }

            var analysis = _view.GetExpressionAnalysis(_serviceProvider);

            string     originalName  = null;
            string     privatePrefix = null;
            Expression expr          = null;

            if (analysis != ExpressionAnalysis.Empty)
            {
                PythonAst ast = analysis.GetEvaluatedAst();

                expr = Statement.GetExpression(ast.Body);

                NameExpression   ne = expr as NameExpression;
                MemberExpression me;
                if (ne != null)
                {
                    originalName = ne.Name;
                }
                else if ((me = expr as MemberExpression) != null)
                {
                    originalName = me.Name;
                }

                if (ast.PrivatePrefix != null && originalName.StartsWith("_" + ast.PrivatePrefix))
                {
                    originalName  = originalName.Substring(ast.PrivatePrefix.Length + 1);
                    privatePrefix = ast.PrivatePrefix;
                }

                if (originalName != null && _view.Selection.IsActive && !_view.Selection.IsEmpty)
                {
                    if (_view.Selection.Start.Position < analysis.Span.GetStartPoint(_view.TextBuffer.CurrentSnapshot) ||
                        _view.Selection.End.Position > analysis.Span.GetEndPoint(_view.TextBuffer.CurrentSnapshot))
                    {
                        originalName = null;
                    }
                }
            }

            if (originalName == null)
            {
                input.CannotRename("Please select a symbol to be renamed.");
                return;
            }

            bool hasVariables = false;

            foreach (var variable in analysis.Variables)
            {
                if (variable.Type == VariableType.Definition || variable.Type == VariableType.Reference)
                {
                    hasVariables = true;
                    break;
                }
            }

            IEnumerable <IAnalysisVariable> variables;

            if (!hasVariables)
            {
                List <IAnalysisVariable> paramVars = GetKeywordParameters(expr, originalName);

                if (paramVars.Count == 0)
                {
                    input.CannotRename(string.Format("No information is available for the variable '{0}'.", originalName));
                    return;
                }

                variables = paramVars;
            }
            else
            {
                variables = analysis.Variables;
            }

            PythonLanguageVersion languageVersion = PythonLanguageVersion.None;
            var analyzer = _view.GetAnalyzer(_serviceProvider);
            var factory  = analyzer != null ? analyzer.InterpreterFactory : null;

            if (factory != null)
            {
                languageVersion = factory.Configuration.Version.ToLanguageVersion();
            }

            var info = input.GetRenameInfo(originalName, languageVersion);

            if (info != null)
            {
                var engine = new PreviewChangesEngine(_serviceProvider, input, analysis, info, originalName, privatePrefix, _view.GetAnalyzer(_serviceProvider), variables);
                if (info.Preview)
                {
                    previewChanges.PreviewChanges(engine);
                }
                else
                {
                    ErrorHandler.ThrowOnFailure(engine.ApplyChanges());
                }
            }
        }
Esempio n. 5
0
        public async Task RenameVariable(IRenameVariableInput input, IVsPreviewChangesService previewChanges)
        {
            if (IsModuleName(input))
            {
                input.CannotRename(Strings.RenameVariable_CannotRenameModuleName);
                return;
            }

            var caret = _view.GetPythonCaret();
            var entry = _view.GetAnalysisAtCaret(_serviceProvider);

            if (caret == null || entry == null)
            {
                input.CannotRename(Strings.RenameVariable_UnableGetAnalysisCurrentTextView);
                return;
            }
            var analysis = await entry.Analyzer.AnalyzeExpressionAsync(entry, _view, caret.Value);

            if (analysis == null)
            {
                input.CannotRename(Strings.RenameVariable_UnableGetAnalysisCurrentTextView);
                return;
            }

            string originalName  = null;
            string privatePrefix = null;

            if (!String.IsNullOrWhiteSpace(analysis.Expression))
            {
                originalName = analysis.MemberName;

                if (analysis.PrivatePrefix != null && originalName != null && originalName.StartsWith("_" + analysis.PrivatePrefix))
                {
                    originalName  = originalName.Substring(analysis.PrivatePrefix.Length + 1);
                    privatePrefix = analysis.PrivatePrefix;
                }

                if (originalName != null && _view.Selection.IsActive && !_view.Selection.IsEmpty)
                {
                    if (_view.Selection.Start.Position < analysis.Span.GetStartPoint(_view.TextBuffer.CurrentSnapshot) ||
                        _view.Selection.End.Position > analysis.Span.GetEndPoint(_view.TextBuffer.CurrentSnapshot))
                    {
                        originalName = null;
                    }
                }
            }

            if (originalName == null)
            {
                input.CannotRename(Strings.RenameVariable_SelectSymbol);
                return;
            }

            bool hasVariables = false;

            foreach (var variable in analysis.Variables)
            {
                if (variable.Type == VariableType.Definition || variable.Type == VariableType.Reference)
                {
                    hasVariables = true;
                    break;
                }
            }

            IEnumerable <AnalysisVariable> variables;

            if (!hasVariables)
            {
                List <AnalysisVariable> paramVars = await GetKeywordParameters(analysis.Expression, originalName);

                if (paramVars.Count == 0)
                {
                    input.CannotRename(Strings.RenameVariable_NoInformationAvailableForVariable.FormatUI(originalName));
                    return;
                }

                variables = paramVars;
            }
            else
            {
                variables = analysis.Variables;
            }

            PythonLanguageVersion languageVersion = PythonLanguageVersion.None;
            var analyzer = _view.GetAnalyzerAtCaret(_serviceProvider);
            var factory  = analyzer != null ? analyzer.InterpreterFactory : null;

            if (factory != null)
            {
                languageVersion = factory.Configuration.Version.ToLanguageVersion();
            }

            var info = input.GetRenameInfo(originalName, languageVersion);

            if (info != null)
            {
                var engine = new PreviewChangesEngine(_serviceProvider, input, analysis.Expression, info, originalName, privatePrefix, _view.GetAnalyzerAtCaret(_serviceProvider), variables);
                if (info.Preview)
                {
                    previewChanges.PreviewChanges(engine);
                }
                else
                {
                    ErrorHandler.ThrowOnFailure(engine.ApplyChanges());
                }
            }
        }
Esempio n. 6
0
 public BufferUpdater(ITextBuffer buffer, PreviewChangesEngine engine)
 {
     _buffer = buffer;
     _engine = engine;
 }
Esempio n. 7
0
 public BufferUpdater(ITextBuffer buffer, PreviewChangesEngine engine) {
     _buffer = buffer;
     _engine = engine;
 }
Esempio n. 8
0
        public async Task RenameVariable(IRenameVariableInput input, IVsPreviewChangesService previewChanges) {
            if (IsModuleName(input)) {
                input.CannotRename("Cannot rename a module name");
                return;
            }

            var caret = _view.GetPythonCaret();
            var analysis = await VsProjectAnalyzer.AnalyzeExpressionAsync(_serviceProvider, _view, caret.Value);
            if (analysis == null) {
                input.CannotRename("Unable to get analysis for current text view.");
                return;
            }
            
            string originalName = null;
            string privatePrefix = null;
            if (!String.IsNullOrWhiteSpace(analysis.Expression)) {
                originalName = analysis.MemberName;

                if (analysis.PrivatePrefix != null && originalName != null && originalName.StartsWith("_" + analysis.PrivatePrefix)) {
                    originalName = originalName.Substring(analysis.PrivatePrefix.Length + 1);
                    privatePrefix = analysis.PrivatePrefix;
                }

                if (originalName != null && _view.Selection.IsActive && !_view.Selection.IsEmpty) {
                    if (_view.Selection.Start.Position < analysis.Span.GetStartPoint(_view.TextBuffer.CurrentSnapshot) ||
                        _view.Selection.End.Position > analysis.Span.GetEndPoint(_view.TextBuffer.CurrentSnapshot)) {
                        originalName = null;
                    }
                }
            }

            if (originalName == null) {
                input.CannotRename("Please select a symbol to be renamed.");
                return;
            }

            bool hasVariables = false;
            foreach (var variable in analysis.Variables) {
                if (variable.Type == VariableType.Definition || variable.Type == VariableType.Reference) {
                    hasVariables = true;
                    break;
                }
            }

            IEnumerable<AnalysisVariable> variables;
            if (!hasVariables) {
                List<AnalysisVariable> paramVars = await GetKeywordParameters(analysis.Expression, originalName);

                if (paramVars.Count == 0) {
                    input.CannotRename(string.Format("No information is available for the variable '{0}'.", originalName));
                    return;
                }

                variables = paramVars;
            } else {
                variables = analysis.Variables;

            }

            PythonLanguageVersion languageVersion = PythonLanguageVersion.None;
            var analyzer = _view.GetAnalyzerAtCaret(_serviceProvider);
            var factory = analyzer != null ? analyzer.InterpreterFactory : null;
            if (factory != null) {
                languageVersion = factory.Configuration.Version.ToLanguageVersion();
            }

            var info = input.GetRenameInfo(originalName, languageVersion);
            if (info != null) {
                var engine = new PreviewChangesEngine(_serviceProvider, input, analysis.Expression, info, originalName, privatePrefix, _view.GetAnalyzerAtCaret(_serviceProvider), variables);
                if (info.Preview) {
                    previewChanges.PreviewChanges(engine);
                } else {
                    ErrorHandler.ThrowOnFailure(engine.ApplyChanges());
                }
            }
        }
Esempio n. 9
0
        public void RenameVariable(IRenameVariableInput input, IVsPreviewChangesService previewChanges) {
            if (IsModuleName(input)) {
                input.CannotRename("Cannot rename a module name");
                return;
            }

            var analysis = _view.GetExpressionAnalysis(_serviceProvider);
            
            string originalName = null;
            string privatePrefix = null;
            Expression expr = null;
            if (analysis != ExpressionAnalysis.Empty) {
                PythonAst ast = analysis.GetEvaluatedAst();

                expr = Statement.GetExpression(ast.Body);

                NameExpression ne = expr as NameExpression;
                MemberExpression me;
                if (ne != null) {
                    originalName = ne.Name;
                } else if ((me = expr as MemberExpression) != null) {
                    originalName = me.Name;
                }

                if (ast.PrivatePrefix != null && originalName != null && originalName.StartsWith("_" + ast.PrivatePrefix)) {
                    originalName = originalName.Substring(ast.PrivatePrefix.Length + 1);
                    privatePrefix = ast.PrivatePrefix;
                }

                if (originalName != null && _view.Selection.IsActive && !_view.Selection.IsEmpty) {
                    if (_view.Selection.Start.Position < analysis.Span.GetStartPoint(_view.TextBuffer.CurrentSnapshot) ||
                        _view.Selection.End.Position > analysis.Span.GetEndPoint(_view.TextBuffer.CurrentSnapshot)) {
                        originalName = null;
                    }
                }
            }

            if (originalName == null) {
                input.CannotRename("Please select a symbol to be renamed.");
                return;
            }

            bool hasVariables = false;
            foreach (var variable in analysis.Variables) {
                if (variable.Type == VariableType.Definition || variable.Type == VariableType.Reference) {
                    hasVariables = true;
                    break;
                }
            }

            IEnumerable<IAnalysisVariable> variables;
            if (!hasVariables) {
                List<IAnalysisVariable> paramVars = GetKeywordParameters(expr, originalName);

                if (paramVars.Count == 0) {
                    input.CannotRename(string.Format("No information is available for the variable '{0}'.", originalName));
                    return;
                }

                variables = paramVars;
            } else {
                variables = analysis.Variables;

            }

            PythonLanguageVersion languageVersion = PythonLanguageVersion.None;
            var analyzer = _view.GetAnalyzer(_serviceProvider);
            var factory = analyzer != null ? analyzer.InterpreterFactory : null;
            if (factory != null) {
                languageVersion = factory.Configuration.Version.ToLanguageVersion();
            }

            var info = input.GetRenameInfo(originalName, languageVersion);
            if (info != null) {
                var engine = new PreviewChangesEngine(_serviceProvider, input, analysis, info, originalName, privatePrefix, _view.GetAnalyzer(_serviceProvider), variables);
                if (info.Preview) {
                    previewChanges.PreviewChanges(engine);
                } else {
                    ErrorHandler.ThrowOnFailure(engine.ApplyChanges());
                }
            }
        }