codegen: allow generators in iterable checks

do not do anything but do not error either

test262: 49.30% (+0.50) | 🧪 48414 | 🤠 23868 (+243) | ❌ 6812 (+204) | 💀 15476 (-439) | 🏗️ 153 | 💥 300 | ⏰ 170 (-8) | 📝 1635

compiler/codegen.js

@@ -3178,7 +3178,7 @@ const generateVarDstr = (scope, kind, pattern, init, defaultValue, global) => {
     out = out.concat([
       // check tmp is iterable
       // array or string or bytestring
-      ...typeIsOneOf(getType(scope, tmpName), [ TYPES.array, TYPES.string, TYPES.bytestring ]),
+      ...typeIsOneOf(getType(scope, tmpName), [ TYPES.array, TYPES.string, TYPES.bytestring, TYPES.__porffor_generator ]),
       // typed array
       ...getType(scope, tmpName),
       ...number(TYPES.uint8array, Valtype.i32),
@@ -4116,7 +4116,7 @@ const generateForOf = (scope, decl) => {
 
     // check tmp is iterable
     // array or string or bytestring
-    ...typeIsOneOf(iterType, [ TYPES.array, TYPES.set, TYPES.string, TYPES.bytestring ]),
+    ...typeIsOneOf(iterType, [ TYPES.array, TYPES.set, TYPES.string, TYPES.bytestring, TYPES.__porffor_generator ]),
     // typed array
     ...iterType,
     ...number(TYPES.uint8array, Valtype.i32),
@@ -4456,6 +4456,8 @@ const generateForOf = (scope, decl) => {
       ]
     }),
 
+    [TYPES.__porffor_generator]: () => [],
+
     // note: should be impossible to reach?
     default: internalThrow(scope, 'TypeError', `Tried for..of on non-iterable type`)
   }, Blocktype.void));

package.json

@@ -1,7 +1,7 @@
 {
   "name": "porffor",
   "description": "a basic experimental wip aot optimizing js -> wasm engine/compiler/runtime in js",
-  "version": "0.48.0",
+  "version": "0.48.1",
   "author": "CanadaHonk",
   "license": "MIT",
   "scripts": {},

runner/index.js

@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 import fs from 'node:fs';
-globalThis.version = '0.48.0';
+globalThis.version = '0.48.1';
 
 // deno compat
 if (typeof process === 'undefined' && typeof Deno !== 'undefined') {