/// <summary>
/// 获取 成员访问语法节点的父级类型
/// </summary>
public static ITypeSymbol?GetMemberAccessSyntaxParentType(this MemberAccessExpressionSyntax memberAccessExpressionSyntax,
SemanticModel semanticModel)
{
SyntaxNode?firstChildSyntaxNode = memberAccessExpressionSyntax.GetFirstChild();
if (firstChildSyntaxNode == null)
{
return(null);
}
ISymbol?firstChildSymbol = semanticModel.GetSymbolInfo(firstChildSyntaxNode).Symbol;
if (firstChildSymbol == null)
{
return(null);
}
if (firstChildSymbol is ILocalSymbol localSymbol)
{
return(localSymbol.Type);
}
if (firstChildSymbol is IParameterSymbol parameterSymbol)
{
return(parameterSymbol.Type);
}
if (firstChildSymbol is IPropertySymbol propertySymbol)
{
return(propertySymbol.Type);
}
if (firstChildSymbol is IMethodSymbol methodSymbol)
{
return(methodSymbol.ReturnType);
}
if (firstChildSymbol is IFieldSymbol fieldSymbol)
{
return(fieldSymbol.Type);
}
if (firstChildSymbol is IEventSymbol eventSymbol)
{
return(eventSymbol.Type);
}
return(null);
}
