vendoring NetVips

vendor/NetVips/VipsException.cs

@@ -0,0 +1,44 @@
+using System;
+using NetVips.Internal;
+
+namespace NetVips;
+
+/// <summary>
+/// Our own exception class which handles the libvips error buffer.
+/// </summary>
+public class VipsException : Exception
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="VipsException"/> class.
+    /// </summary>
+    public VipsException()
+    {
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="VipsException"/> class with a specified error message.
+    /// </summary>
+    /// <param name="message">The message that describes the error.</param>
+    public VipsException(string message)
+        : base($"{message}{Environment.NewLine}{VipsErrorBuffer()}")
+    {
+        Vips.ErrorClear();
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="VipsException"/> class with a specified error message
+    /// and a reference to the inner exception that is the cause of this exception.
+    /// </summary>
+    /// <param name="message">The error message that explains the reason for the exception.</param>
+    /// <param name="inner">The exception that is the cause of the current exception, or a null reference if no inner exception is specified.</param>
+    public VipsException(string message, Exception inner)
+        : base($"{message}{Environment.NewLine}{VipsErrorBuffer()}", inner)
+    {
+        Vips.ErrorClear();
+    }
+
+    private static string VipsErrorBuffer()
+    {
+        return Vips.ErrorBuffer().ToUtf8String();
+    }
+}