public static (ITypeSymbol typeSymbol, TypeInferredFrom inferredFrom) GetTypeSymbol(this SemanticModel semanticModel, SyntaxToken currentToken)
{
ITypeSymbol typeSymbol = null;
TypeInferredFrom inferredFrom = TypeInferredFrom.None;
SyntaxNode currentSyntaxNode = currentToken.Parent;
// If new keyword is already present, we need to work with parent node
if (currentSyntaxNode is ObjectCreationExpressionSyntax
// happens with named arguments - we need to get ArgumentSyntax
|| currentSyntaxNode is NameColonSyntax)
{
currentSyntaxNode = currentSyntaxNode.Parent;
}
if (currentSyntaxNode?.Parent?.Parent is VariableDeclarationSyntax varDeclarationSyntax &&
!varDeclarationSyntax.Type.IsVar)
{
var typeInfo = semanticModel.GetTypeInfo(varDeclarationSyntax.Type);
typeSymbol = typeInfo.Type;
inferredFrom = TypeInferredFrom.VariableDeclaration;
}
public SyntaxContext(Document document, SemanticModel semanticModel, SyntaxTree syntaxTree, int position,
IEnumerable <string> importedNamespaces, bool isTypeContext = false, bool isAttributeContext = false,
bool isMemberAccessContext = false, ITypeSymbol accessedSymbolType = null, ISymbol accessedSymbol = null,
ITypeSymbol inferredType = null, TypeInferredFrom inferredFrom = TypeInferredFrom.None,
SyntaxToken currentToken = default(SyntaxToken), CancellationToken token = default(CancellationToken))
{
Document = document;
SemanticModel = semanticModel;
SyntaxTree = syntaxTree;
Position = position;
ImportedNamespaces = importedNamespaces.ToImmutableHashSet();
IsTypeContext = isTypeContext;
IsAttributeContext = isAttributeContext;
IsMemberAccessContext = isMemberAccessContext;
AccessedSymbolType = accessedSymbolType;
AccessedSymbol = accessedSymbol;
InferredType = inferredType;
TypeInferredFrom = inferredFrom;
CurrentToken = currentToken;
CancellationToken = token;
}
