Move Wasmtime for .NET to the Wasmtime repo.

This moves the Wasmtime for .NET implementation to the Wasmtime repo. Wasmtime for .NET is a binding of the Wasmtime API for use in .NET.
2019-11-22 17:11:00 -08:00
parent bbe2a797ba
commit 9fdf5bce8e
100 changed files with 6391 additions and 0 deletions
--- a/crates/misc/dotnet/src/Externs/Externs.cs
+++ b/crates/misc/dotnet/src/Externs/Externs.cs
@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using Wasmtime.Exports;
+
+namespace Wasmtime.Externs
+{
+    /// <summary>
+    /// Represents external (instantiated) WebAssembly functions, globals, tables, and memories.
+    /// </summary>
+    public class Externs
+    {
+        internal Externs(Wasmtime.Exports.Exports exports, Interop.wasm_extern_vec_t externs)
+        {
+            var functions = new List<ExternFunction>();
+            var globals = new List<ExternGlobal>();
+            var memories = new List<ExternMemory>();
+
+            for (int i = 0; i < (int)externs.size; ++i)
+            {
+                unsafe
+                {
+                    var ext = externs.data[i];
+
+                    switch (Interop.wasm_extern_kind(ext))
+                    {
+                        case Interop.wasm_externkind_t.WASM_EXTERN_FUNC:
+                            var function = new ExternFunction((FunctionExport)exports.All[i], Interop.wasm_extern_as_func(ext));
+                            functions.Add(function);
+                            break;
+
+                        case Interop.wasm_externkind_t.WASM_EXTERN_GLOBAL:
+                            var global = new ExternGlobal((GlobalExport)exports.All[i], Interop.wasm_extern_as_global(ext));
+                            globals.Add(global);
+                            break;
+
+                        case Interop.wasm_externkind_t.WASM_EXTERN_MEMORY:
+                            var memory = new ExternMemory((MemoryExport)exports.All[i], Interop.wasm_extern_as_memory(ext));
+                            memories.Add(memory);
+                            break;
+
+                        default:
+                            throw new NotSupportedException("Unsupported extern type.");
+                    }
+                }
+            }
+
+            Functions = functions;
+            Globals = globals;
+            Memories = memories;
+        }
+
+        /// <summary>
+        /// The extern functions from an instantiated WebAssembly module.
+        /// </summary>
+        public IReadOnlyList<ExternFunction> Functions { get; private set; }
+
+        /// <summary>
+        /// The extern globals from an instantiated WebAssembly module.
+        /// </summary>
+        public IReadOnlyList<ExternGlobal> Globals { get; private set; }
+
+        /// <summary>
+        /// The extern memories from an instantiated WebAssembly module.
+        /// </summary>
+        public IReadOnlyList<ExternMemory> Memories { get; private set; }
+    }
+}