/// <summary> /// Check if <paramref name="type"/> is <paramref name="qualifiedType1"/> or <paramref name="qualifiedType2"/>. /// </summary> /// <param name="type">The <see cref="ITypeSymbol"/>.</param> /// <param name="qualifiedType1">The first <see cref="QualifiedType"/>.</param> /// <param name="qualifiedType2">The second <see cref="QualifiedType"/>.</param> /// <returns>True if <paramref name="type"/> is <paramref name="qualifiedType1"/> or <paramref name="qualifiedType2"/>.</returns> public static bool IsEither(this ITypeSymbol type, QualifiedType qualifiedType1, QualifiedType qualifiedType2) => type == qualifiedType1 || type == qualifiedType2;
/// <summary>
/// Initializes a new instance of the <see cref="QualifiedEvent"/> class.
/// </summary>
/// <param name="containingType">The containing type.</param>
/// <param name="name">The name.</param>
public QualifiedEvent(QualifiedType containingType, string name)
: base(containingType, name)
{
}
/// <summary>
/// Try find an attribute of the expected type.
/// </summary>
/// <param name="attributeLists">The <see cref="AttributeListSyntax"/>.</param>
/// <param name="expected">The expected type.</param>
/// <param name="semanticModel">The <see cref="SemanticModel"/>.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <param name="result">The match.</param>
/// <returns>True if an attribute of the expected type was found.</returns>
public static bool TryFind(this SyntaxList <AttributeListSyntax> attributeLists, QualifiedType expected, SemanticModel semanticModel, CancellationToken cancellationToken, out AttributeSyntax result)
{
result = null;
foreach (var attributeList in attributeLists)
{
foreach (var attribute in attributeList.Attributes)
{
if (IsType(attribute, expected, semanticModel, cancellationToken))
{
result = attribute;
return(true);
}
}
}
return(false);
}
/// <summary> /// Create a <see cref="QualifiedParameter"/> with name only. /// </summary> /// <param name="type">The type.</param> /// <returns>A <see cref="QualifiedParameter"/>.</returns> public static QualifiedParameter Create(QualifiedType type) => new QualifiedParameter(null, type);
public static bool IsType(AttributeSyntax attribute, QualifiedType expected, SemanticModel semanticModel, CancellationToken cancellationToken)
{
return(semanticModel.TryGetNamedType(attribute, expected, cancellationToken, out _));
}
/// <summary>
/// Find the matching parameter for the argument.
/// </summary>
/// <param name="method">The <see cref="IMethodSymbol"/>.</param>
/// <param name="type">The type of the parameter.</param>
/// <returns><see cref="IParameterSymbol"/> if a matching parameter was found.</returns>
public static IParameterSymbol?FindParameter(this IMethodSymbol method, QualifiedType type)
{
return(TryFindParameter(method, type, out var match) ? match : null);
}
/// <summary>
/// Try getting the <see cref="IMethodSymbol"/> for the node.
/// Gets the semantic model for the tree if the node is not in the tree corresponding to <paramref name="semanticModel"/>.
/// </summary>
/// <param name="semanticModel">The <see cref="SemanticModel"/>.</param>
/// <param name="node">The <see cref="ObjectCreationExpressionSyntax"/>.</param>
/// <param name="expected">The expected method.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <param name="symbol">The symbol if found.</param>
/// <returns>True if a symbol was found.</returns>
public static bool TryGetSymbol(this SemanticModel semanticModel, ObjectCreationExpressionSyntax node, QualifiedType expected, CancellationToken cancellationToken, out IMethodSymbol symbol)
{
if (node.Type is SimpleNameSyntax typeName &&
(typeName.Identifier.ValueText == expected.Type ||
AliasWalker.TryGet(node.SyntaxTree, typeName.Identifier.ValueText, out _)))
{
symbol = semanticModel.GetSymbolSafe(node, cancellationToken);
return(symbol?.ContainingType == expected);
}
if (node.Type is QualifiedNameSyntax qualifiedName &&
qualifiedName.Right.Identifier.ValueText == expected.Type)
{
symbol = semanticModel.GetSymbolSafe(node, cancellationToken);
return(symbol?.ContainingType == expected);
}
symbol = null;
return(false);
}
/// <summary>
/// Initializes a new instance of the <see cref="QualifiedArrayType"/> class.
/// </summary>
/// <param name="elementType">The element type.</param>
public QualifiedArrayType(QualifiedType elementType)
: base(elementType?.FullName + "[]", NamespaceParts, elementType?.Type + "[]")
{
this.ElementType = elementType ?? throw new ArgumentNullException(nameof(elementType));
}
/// <summary>
/// Initializes a new instance of the <see cref="QualifiedProperty"/> class.
/// </summary>
/// <param name="containingType">The containing type.</param>
/// <param name="name">The name.</param>
public QualifiedProperty(QualifiedType containingType, string name)
: base(containingType, name)
{
}
/// <summary>
/// Check if <paramref name="type"/> is assignable to <paramref name="qualifiedType1"/> or <paramref name="qualifiedType2"/>.
/// </summary>
/// <param name="type">The <see cref="ITypeSymbol"/>.</param>
/// <param name="qualifiedType1">The first <see cref="QualifiedType"/>.</param>
/// <param name="qualifiedType2">The second <see cref="QualifiedType"/>.</param>
/// <param name="compilation">The <see cref="Compilation"/>.</param>
/// <returns>True if <paramref name="type"/> is assignable to <paramref name="qualifiedType1"/> or <paramref name="qualifiedType2"/>.</returns>
public static bool IsAssignableToEither(this ITypeSymbol type, QualifiedType qualifiedType1, QualifiedType qualifiedType2, Compilation compilation)
{
if (type is null)
{
throw new ArgumentNullException(nameof(type));
}
if (qualifiedType1 is null)
{
throw new ArgumentNullException(nameof(qualifiedType1));
}
return(type.IsAssignableTo(qualifiedType1, compilation) ||
type.IsAssignableTo(qualifiedType2, compilation));
}
/// <summary>
/// Initializes a new instance of the <see cref="QualifiedMethod"/> class.
/// </summary>
/// <param name="containingType">The containing type.</param>
/// <param name="name">The name.</param>
public QualifiedMethod(QualifiedType containingType, string name)
: base(containingType, name)
{
}
/// <summary>
/// Check if <paramref name="node"/> is <paramref name="type"/>.
/// Optimized so that the stuff that can be checked in syntax mode is done before calling get symbol.
/// </summary>
/// <param name="node">The <see cref="ParameterSyntax"/>.</param>
/// <param name="type">The <see cref="QualifiedType"/>.</param>
/// <param name="semanticModel">The <see cref="SemanticModel"/>.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <returns>True if <paramref name="node"/> is <paramref name="type"/>.</returns>
public static bool IsType(this ParameterSyntax node, QualifiedType type, SemanticModel semanticModel, CancellationToken cancellationToken)
{
return(node switch
{
{ Type : IdentifierNameSyntax identifierName } => identifierName == type &&
