/// <summary>
/// Check if <paramref name="invocation"/> is a call to Type.GetMethod.
/// </summary>
internal static bool TryMatchGetConstructor(InvocationExpressionSyntax invocation, SyntaxNodeAnalysisContext context, out ReflectedMember member, out Flags flags, out Types types)
{
if (invocation.ArgumentList != null &&
invocation.TryGetTarget(KnownSymbol.Type.GetConstructor, context.SemanticModel, context.CancellationToken, out var getX))
{
if (ReflectedMember.TryGetType(invocation, context, out var type, out var typeSource) &&
IsKnownSignature(invocation, getX) &&
Flags.TryCreate(invocation, getX, context, out flags) &&
Types.TryCreate(invocation, getX, context, out types))
{
return(ReflectedMember.TryCreate(getX, invocation, type, typeSource, Name.Ctor, flags.Effective, types, context, out member));
}
if (Flags.TryCreate(invocation, getX, context, out flags) &&
flags.AreInSufficient)
{
member = new ReflectedMember(type, typeSource, null, getX, invocation, FilterMatch.InSufficientFlags);
_ = Types.TryCreate(invocation, getX, context, out types);
return(true);
}
}
member = default(ReflectedMember);
flags = default(Flags);
types = default(Types);
return(false);
}
/// <summary>
/// Handles GetField, GetEvent, GetMember, GetMethod...
/// </summary>
private static bool TryMatchGetX(InvocationExpressionSyntax invocation, QualifiedMethod getXMethod, SyntaxNodeAnalysisContext context, out ReflectedMember member, out Name name, out Flags flags)
{
if (invocation.ArgumentList != null &&
invocation.TryGetTarget(getXMethod, context.SemanticModel, context.CancellationToken, out var getX))
{
if (ReflectedMember.TryGetType(invocation, context, out var type, out var typeSource) &&
Name.TryCreate(invocation, getX, context, out name) &&
Flags.TryCreate(invocation, getX, context, out flags) &&
ReflectedMember.TryCreate(getX, invocation, type, typeSource, name, flags.Effective, Types.Any, context, out member))
{
return(true);
}
if (getXMethod.Name != "GetNestedType" &&
Flags.TryCreate(invocation, getX, context, out flags) &&
flags.AreInSufficient)
{
_ = Name.TryCreate(invocation, getX, context, out name);
member = new ReflectedMember(type, typeSource, null, getX, invocation, FilterMatch.InSufficientFlags);
return(true);
}
}
member = default(ReflectedMember);
name = default(Name);
flags = default(Flags);
return(false);
}
private static void Handle(SyntaxNodeAnalysisContext context)
{
if (!context.IsExcludedFromAnalysis() &&
context.Node is InvocationExpressionSyntax invocation &&
invocation.TryGetTarget(KnownSymbol.Type.GetInterface, context.SemanticModel, context.CancellationToken, out var getInterface) &&
getInterface.TryFindParameter(KnownSymbol.String, out var nameParameter) &&
invocation.TryFindArgument(nameParameter, out var nameArg) &&
TryGetName(nameArg, context, out var maybeNameSyntax, out var name) &&
ReflectedMember.TryGetType(invocation, context, out var type, out _))
{
var count = CountInterfaces(type, name, out var match);
if (count > 1)
{
context.ReportDiagnostic(Diagnostic.Create(REFL020AmbiguousMatchInterface.Descriptor, nameArg.GetLocation()));
}
if (count == 1 && match.MetadataName == name)
{
switch (nameArg.Expression)
{
case LiteralExpressionSyntax literal when literal.IsKind(SyntaxKind.StringLiteralExpression):
context.ReportDiagnostic(
Diagnostic.Create(
REFL022UseFullyQualifiedName.Descriptor,
literal.GetLocation(),
ImmutableDictionary <string, string> .Empty.Add(
nameof(SyntaxKind.StringLiteralExpression),
$"{match.ContainingNamespace}.{match.MetadataName}")));
break;
default:
if (maybeNameSyntax.HasValue &&
maybeNameSyntax.Value.Identifier.ValueText == "Name")
{
context.ReportDiagnostic(
Diagnostic.Create(
REFL022UseFullyQualifiedName.Descriptor,
maybeNameSyntax.Value.Identifier.GetLocation(),
ImmutableDictionary <string, string> .Empty.Add(
nameof(SimpleNameSyntax),
"FullName")));
}
else
{
context.ReportDiagnostic(Diagnostic.Create(REFL022UseFullyQualifiedName.Descriptor, nameArg.GetLocation()));
}
break;
}
}
if (count == 0)
{
context.ReportDiagnostic(Diagnostic.Create(REFL023TypeDoesNotImplementInterface.Descriptor, nameArg.GetLocation()));
}
}
}