public void Analyze(SemanticModelAnalysisContext context)
{
var semanticModel = context.SemanticModel;
var syntaxTree = semanticModel.SyntaxTree;
var cancellationToken = context.CancellationToken;
if (!context.GetIdeAnalyzerOptions().DetectAndOfferEditorFeaturesForProbableJsonStrings)
{
return;
}
var detector = JsonLanguageDetector.GetOrCreate(semanticModel.Compilation, _info);
var root = syntaxTree.GetRoot(cancellationToken);
Analyze(context, detector, root, cancellationToken);
}
public void Analyze(SemanticModelAnalysisContext context)
{
var semanticModel = context.SemanticModel;
var syntaxTree = semanticModel.SyntaxTree;
var cancellationToken = context.CancellationToken;
var option = context.Options.GetIdeOptions().ReportInvalidJsonPatterns;
if (!option)
{
return;
}
var detector = JsonLanguageDetector.GetOrCreate(semanticModel.Compilation, _info);
var root = syntaxTree.GetRoot(cancellationToken);
Analyze(context, detector, root, cancellationToken);
}
private void Analyze(
SemanticModelAnalysisContext context,
JsonLanguageDetector detector,
SyntaxNode node,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
foreach (var child in node.ChildNodesAndTokens())
{
if (child.IsNode)
{
Analyze(context, detector, child.AsNode() !, cancellationToken);
}
else
{
var token = child.AsToken();
// If we have a string, and it's not being passed to a known JSON api (and it doesn't have a
// lang=json comment), but it is parseable as JSON with enough structure that we are confident it is
// json, then report that json features could light up here.
if (_info.IsAnyStringLiteral(token.RawKind) &&
detector.TryParseString(token, context.SemanticModel, includeProbableStrings: false, cancellationToken) == null &&
detector.IsProbablyJson(token, out _))
{
var chars = _info.VirtualCharService.TryConvertToVirtualChars(token);
var strictTree = JsonParser.TryParse(chars, JsonOptions.Strict);
var properties = strictTree != null && strictTree.Diagnostics.Length == 0
? s_strictProperties
: ImmutableDictionary <string, string?> .Empty;
// Show this as a hidden diagnostic so the user can enable json features explicitly if they
// want, but do not spam them with a ... notification if they don't want it.
context.ReportDiagnostic(DiagnosticHelper.Create(
this.Descriptor,
token.GetLocation(),
ReportDiagnostic.Hidden,
additionalLocations: null,
properties));
}
}
}
}
private void Analyze(
SemanticModelAnalysisContext context,
JsonLanguageDetector detector,
SyntaxNode node,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
foreach (var child in node.ChildNodesAndTokens())
{
if (child.IsNode)
{
Analyze(context, detector, child.AsNode() !, cancellationToken);
}
else
{
var token = child.AsToken();
if (_info.IsAnyStringLiteral(token.RawKind))
{
var tree = detector.TryParseString(token, context.SemanticModel, includeProbableStrings: false, cancellationToken);
if (tree != null)
{
foreach (var diag in tree.Diagnostics)
{
context.ReportDiagnostic(DiagnosticHelper.Create(
this.Descriptor,
Location.Create(context.SemanticModel.SyntaxTree, diag.Span),
ReportDiagnostic.Warn,
additionalLocations: null,
properties: null,
diag.Message));
}
}
}
}
}
}