public void PartialScanning() {
var code1 = "/* hello world ";
var code2 = " goodbye */";
CollectingErrorSink errorSink = new CollectingErrorSink(true);
var scanner = new JSScanner(code1, errorSink, new CodeSettings() { AllowShebangLine = true });
var tokens = scanner.ReadTokens(Int32.MaxValue);
VerifyTokens(
tokens,
new TokenInfo(JSToken.MultipleLineComment, new SourceLocation(0, 1, 1), new SourceLocation(15, 1, 16))
);
scanner.Initialize(code2, scanner.CurrentState, new SourceLocation(code1.Length, 2, 1));
tokens = scanner.ReadTokens(Int32.MaxValue);
VerifyTokens(
tokens,
new TokenInfo(JSToken.MultipleLineComment, new SourceLocation(15, 2, 16), new SourceLocation(28, 2, 29))
);
Assert.IsTrue(scanner.CurrentState.Equals(scanner.CurrentState));
Assert.IsFalse(scanner.CurrentState.Equals(new object()));
Assert.AreEqual(scanner.CurrentState.GetHashCode(), 2);
}
private static List<TokenWithSpan> ReadTokens(string code, bool collectWarnings, params ErrorInfo[] errors) {
CollectingErrorSink errorSink = new CollectingErrorSink(collectWarnings);
var scanner = new JSScanner(code, errorSink, new CodeSettings() { AllowShebangLine = true });
var tokens = scanner.ReadTokens(Int32.MaxValue);
errorSink.CheckErrors(errors);
return tokens;
}
private static List<TokenWithSpan> ScanTokens(string code, bool collectWarnings, params ErrorInfo[] errors) {
CollectingErrorSink errorSink = new CollectingErrorSink(collectWarnings);
var scanner = new JSScanner(code, errorSink, new CodeSettings() { AllowShebangLine = true });
List<TokenWithSpan> tokens = new List<TokenWithSpan>();
for (TokenWithSpan curToken = scanner.ScanNextTokenWithSpan(true);
curToken.Token != JSToken.EndOfFile;
curToken = scanner.ScanNextTokenWithSpan(true)) {
tokens.Add(curToken);
}
errorSink.CheckErrors(errors);
return tokens;
}
private void UpdateErrorsAndWarnings(
IProjectEntry entry,
ITextSnapshot snapshot,
CollectingErrorSink errorSink
) {
// There are some scenarios during ES6 Mode where a textview is still opened using NodeLS.
// In these cases, we do not properly parse ES6 syntax, and therefore do not want to display errors.
if (NodejsPackage.Instance.IntellisenseOptionsPage.AnalysisLevel == AnalysisLevel.Preview) {
return;
}
// Update the warn-on-launch state for this entry
bool changed = false;
lock (_hasParseErrors) {
if (errorSink.Errors.Any() ? _hasParseErrors.Add(entry) : _hasParseErrors.Remove(entry)) {
changed = true;
}
}
if (changed) {
OnShouldWarnOnLaunchChanged(entry);
}
var f = new TaskProviderItemFactory(snapshot);
// Update the parser warnings/errors
if (errorSink.Warnings.Any() || errorSink.Errors.Any()) {
TaskProvider.ReplaceItems(
entry,
ParserTaskMoniker,
errorSink.Warnings
.Where(ShouldIncludeWarning)
.Select(er => f.FromParseWarning(er))
.Concat(errorSink.Errors.Select(er => f.FromParseError(er)))
.ToList()
);
} else {
TaskProvider.Clear(entry, ParserTaskMoniker);
}
#if FALSE
// Add a handler for the next complete analysis
_unresolvedSquiggles.ListenForNextNewAnalysis(entry as IJsProjectEntry);
#endif
}
private void ParseNodejsCode(TextReader content, out JsAst ast, out CollectingErrorSink errorSink) {
ast = null;
errorSink = new CollectingErrorSink();
var parser = CreateParser(content, errorSink);
ast = ParseOneFile(ast, parser);
}
private void UpdateErrorsAndWarnings(
IProjectEntry entry,
ITextSnapshot snapshot,
CollectingErrorSink errorSink
) {
// Update the warn-on-launch state for this entry
bool changed = false;
lock (_hasParseErrors) {
if (errorSink.Errors.Any() ? _hasParseErrors.Add(entry) : _hasParseErrors.Remove(entry)) {
changed = true;
}
}
if (changed) {
OnShouldWarnOnLaunchChanged(entry);
}
var f = new TaskProviderItemFactory(snapshot);
// Update the parser warnings/errors
if (errorSink.Warnings.Any() || errorSink.Errors.Any()) {
TaskProvider.ReplaceItems(
entry,
ParserTaskMoniker,
errorSink.Warnings
.Where(ShouldIncludeWarning)
.Select(er => f.FromParseWarning(er))
.Concat(errorSink.Errors.Select(er => f.FromParseError(er)))
.ToList()
);
} else {
TaskProvider.Clear(entry, ParserTaskMoniker);
}
#if FALSE
// Add a handler for the next complete analysis
_unresolvedSquiggles.ListenForNextNewAnalysis(entry as IJsProjectEntry);
#endif
}