Initial commit

srcs/RobotNet10/Components/RobotNet10.ScriptEditor/Helpers/Webcil/Webcil.cs

@@ -0,0 +1,53 @@
+using System.Runtime.InteropServices;
+
+namespace RobotNet10.ScriptEditor.Helpers.Webcil;
+
+public class Webcil
+{
+    /// <summary>
+    /// The header of a WebCIL file.
+    /// </summary>
+    ///
+    /// <remarks>
+    /// The header is a subset of the PE, COFF and CLI headers that are needed by the mono runtime to load managed assemblies.
+    /// </remarks>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public unsafe struct WebcilHeader
+    {
+        public fixed byte id[4]; // 'W' 'b' 'I' 'L'
+        // 4 bytes
+        public ushort version_major; // 0
+        public ushort version_minor; // 0
+        // 8 bytes
+
+        public ushort coff_sections;
+        public ushort reserved0; // 0
+        // 12 bytes
+        public uint pe_cli_header_rva;
+        public uint pe_cli_header_size;
+        // 20 bytes
+        public uint pe_debug_rva;
+        public uint pe_debug_size;
+        // 28 bytes
+    }
+
+    /// <summary>
+    /// This is the Webcil analog of System.Reflection.PortableExecutable.SectionHeader, but with fewer fields
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public readonly struct WebcilSectionHeader
+    {
+        public readonly int VirtualSize;
+        public readonly int VirtualAddress;
+        public readonly int SizeOfRawData;
+        public readonly int PointerToRawData;
+
+        public WebcilSectionHeader(int virtualSize, int virtualAddress, int sizeOfRawData, int pointerToRawData)
+        {
+            VirtualSize = virtualSize;
+            VirtualAddress = virtualAddress;
+            SizeOfRawData = sizeOfRawData;
+            PointerToRawData = pointerToRawData;
+        }
+    }
+}