cli

bin/reef

@@ -0,0 +1,14 @@
+#!/usr/bin/env bun
+
+import { toBytecode } from "../src/bytecode"
+import { run } from "../src/index"
+import { toJs } from "../src/value"
+
+const file = Bun.argv[2]
+if (!file || !await Bun.file(file).exists()) {
+  console.error("usage: reef <path/to/bytecode.reef>")
+  process.exit(1)
+}
+
+const value = await run(toBytecode(await Bun.file(file).text()))
+console.log(toJs(value))

examples/add.reef

@@ -0,0 +1,3 @@
+PUSH 1
+PUSH 2
+ADD

src/value.ts

@@ -119,4 +119,16 @@ export function isEqual(a: Value, b: Value): boolean {
     }
     case 'function': return false // functions never equal
   }
+}
+
+export function toJs(v: Value): any {
+  switch (v.type) {
+    case 'null': return null
+    case 'boolean': return v.value
+    case 'number': return v.value
+    case 'string': return v.value
+    case 'array': return v.value.map(toJs)
+    case 'dict': return Object.fromEntries(v.value.entries().map(([k, v]) => [k, toJs(v)]))
+    case 'function': return '<function>'
+  }
 }