wip -- marshal UTF16 string from C# to Rust to avoid GC in C#

csharp_mod/FfiGlue.cs

@@ -0,0 +1,92 @@
+/*! \file */
+/*******************************************
+ *                                         *
+ *  File auto-generated by `::safer_ffi`.  *
+ *                                         *
+ *  Do not manually edit this file.        *
+ *                                         *
+ *******************************************/
+
+#pragma warning disable IDE0044, IDE0049, IDE0055, IDE1006,
+#pragma warning disable SA1004, SA1008, SA1023, SA1028,
+#pragma warning disable SA1121, SA1134,
+#pragma warning disable SA1201,
+#pragma warning disable SA1300, SA1306, SA1307, SA1310, SA1313,
+#pragma warning disable SA1500, SA1505, SA1507,
+#pragma warning disable SA1600, SA1601, SA1604, SA1605, SA1611, SA1615, SA1649,
+
+namespace Slang {
+using System;
+using System.Runtime.InteropServices;
+
+public unsafe partial class Ffi {
+#if IOS
+    private const string RustLib = "slang.framework/slang";
+#else
+    private const string RustLib = "slang";
+#endif
+}
+
+/// <summary>
+/// Same as [<c>Vec<T></c>][<c>rust::Vec</c>], but with guaranteed <c>#[repr(C)]</c> layout
+/// </summary>
+[StructLayout(LayoutKind.Sequential, Size = 24)]
+public unsafe struct Vec_uint8_t {
+    public byte * ptr;
+
+    public UIntPtr len;
+
+    public UIntPtr cap;
+}
+
+public unsafe partial class Ffi {
+    [DllImport(RustLib, ExactSpelling = true)] public static unsafe extern
+    Vec_uint8_t compile_from_string (
+        byte /*const*/ * input);
+}
+
+[StructLayout(LayoutKind.Sequential, Size = 104)]
+public unsafe struct FfiToken_t {
+    public Vec_uint8_t text;
+
+    public Vec_uint8_t tooltip;
+
+    public Vec_uint8_t error;
+
+    public Vec_uint8_t status;
+
+    public Int32 column;
+}
+
+/// <summary>
+/// Same as [<c>Vec<T></c>][<c>rust::Vec</c>], but with guaranteed <c>#[repr(C)]</c> layout
+/// </summary>
+[StructLayout(LayoutKind.Sequential, Size = 24)]
+public unsafe struct Vec_FfiToken_t {
+    public FfiToken_t * ptr;
+
+    public UIntPtr len;
+
+    public UIntPtr cap;
+}
+
+public unsafe partial class Ffi {
+    [DllImport(RustLib, ExactSpelling = true)] public static unsafe extern
+    void free_ffi_token_vec (
+        Vec_FfiToken_t v);
+}
+
+public unsafe partial class Ffi {
+    [DllImport(RustLib, ExactSpelling = true)] public static unsafe extern
+    void free_string (
+        Vec_uint8_t s);
+}
+
+public unsafe partial class Ffi {
+    [DllImport(RustLib, ExactSpelling = true)] public static unsafe extern
+    Vec_FfiToken_t tokenize_line (
+        byte /*const*/ * input);
+}
+
+
+} /* Slang */