CLI: Add wat2wasm command

Author: kateinoigakukun

Package.swift

@@ -30,6 +30,7 @@ let package = Package(
             dependencies: [
                 "WasmKit",
                 "WasmKitWASI",
+                "WAT",
                 .product(name: "ArgumentParser", package: "swift-argument-parser"),
                 .product(name: "SystemPackage", package: "swift-system"),
             ],

[email protected]

@@ -33,6 +33,7 @@ let package = Package(
             dependencies: [
                 "WasmKit",
                 "WasmKitWASI",
+                "WAT",
                 .product(name: "ArgumentParser", package: "swift-argument-parser"),
                 .product(name: "SystemPackage", package: "swift-system"),
             ],

Sources/CLI/CLI.swift

@@ -6,6 +6,6 @@ struct CLI: AsyncParsableCommand {
         commandName: "wasmkit",
         abstract: "WebAssembly Runtime written in Swift.",
         version: "0.0.8",
-        subcommands: [Run.self, Explore.self]
+        subcommands: [Run.self, Explore.self, Wat2wasm.self]
     )
 }

Sources/CLI/Commands/Wat2wasm.swift

@@ -0,0 +1,13 @@
+import ArgumentParser
+import WAT
+import Foundation
+
+struct Wat2wasm: ParsableCommand {
+    @Argument var path: String
+    @Option(name: .short) var output: String
+
+    func run() throws {
+        let bytes = try wat2wasm(String(contentsOfFile: path))
+        try Data(bytes).write(to: URL(fileURLWithPath: output))
+    }
+}