Add Set.prototype.isSubsetOf

Author: bnoordhuis

quickjs.c

@@ -46362,6 +46362,60 @@ static JSValue js_set_isDisjointFrom(JSContext *ctx, JSValue this_val,
     return rval;
 }
 
+static JSValue js_set_isSubsetOf(JSContext *ctx, JSValue this_val,
+                                 int argc, JSValue *argv)
+{
+    JSValue item, iter, keys, has, next, rv, rval;
+    BOOL done, found;
+    JSMapState *s;
+    int64_t size;
+    int ok;
+
+    has = JS_UNDEFINED;
+    iter = JS_UNDEFINED;
+    keys = JS_UNDEFINED;
+    next = JS_UNDEFINED;
+    rval = JS_EXCEPTION;
+    s = JS_GetOpaque2(ctx, this_val, JS_CLASS_SET);
+    if (!s)
+        goto exception;
+    // order matters!
+    if (js_setlike_get_size(ctx, argv[0], &size) < 0)
+        goto exception;
+    if (js_setlike_get_has(ctx, argv[0], &has) < 0)
+        goto exception;
+    if (js_setlike_get_keys(ctx, argv[0], &keys) < 0)
+        goto exception;
+    found = FALSE;
+    if (s->record_count > size)
+        goto fini;
+    iter = js_create_map_iterator(ctx, this_val, 0, NULL, MAGIC_SET);
+    if (JS_IsException(iter))
+        goto exception;
+    found = TRUE;
+    do {
+        item = js_map_iterator_next(ctx, iter, 0, NULL, &done, MAGIC_SET);
+        if (JS_IsException(item))
+            goto exception;
+        if (done) // item is JS_UNDEFINED
+            break;
+        rv = JS_Call(ctx, has, argv[0], 1, &item);
+        JS_FreeValue(ctx, item);
+        ok = JS_ToBoolFree(ctx, rv); // returns -1 if rv is JS_EXCEPTION
+        if (ok < 0)
+            goto exception;
+        found = (ok > 0);
+    } while (found);
+fini:
+    rval = found ? JS_TRUE : JS_FALSE;
+exception:
+    JS_FreeValue(ctx, has);
+    JS_FreeValue(ctx, keys);
+    JS_FreeValue(ctx, iter);
+    JS_FreeValue(ctx, next);
+    return rval;
+}
+
 static JSValue js_set_intersection(JSContext *ctx, JSValue this_val,
                                    int argc, JSValue *argv)
 {
@@ -46739,6 +46793,7 @@ static const JSCFunctionListEntry js_set_proto_funcs[] = {
     JS_CGETSET_MAGIC_DEF("size", js_map_get_size, NULL, MAGIC_SET ),
     JS_CFUNC_MAGIC_DEF("forEach", 1, js_map_forEach, MAGIC_SET ),
     JS_CFUNC_DEF("isDisjointFrom", 1, js_set_isDisjointFrom ),
+    JS_CFUNC_DEF("isSubsetOf", 1, js_set_isSubsetOf ),
     JS_CFUNC_DEF("intersection", 1, js_set_intersection ),
     JS_CFUNC_DEF("difference", 1, js_set_difference ),
     JS_CFUNC_DEF("symmetricDifference", 1, js_set_symmetricDifference ),

test262_errors.txt

@@ -72,42 +72,6 @@ test262/test/built-ins/RegExp/property-escapes/generated/XID_Start.js:16: Test26
 test262/test/built-ins/RegExp/property-escapes/generated/XID_Start.js:16: strict mode: Test262Error: `\p{XID_Start}` should match U+02EBF0 (`𮯰`)
 test262/test/built-ins/RegExp/unicode_full_case_folding.js:20: Test262Error: \u0390 does not match \u1fd3
 test262/test/built-ins/RegExp/unicode_full_case_folding.js:20: strict mode: Test262Error: \u0390 does not match \u1fd3
-test262/test/built-ins/Set/prototype/isSubsetOf/allows-set-like-class.js:31: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/allows-set-like-class.js:31: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/allows-set-like-object.js:29: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/allows-set-like-object.js:29: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/builtins.js:9: Test262Error: Built-in objects must be extensible. Expected SameValue(«false», «true») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/builtins.js:9: strict mode: Test262Error: Built-in objects must be extensible. Expected SameValue(«false», «true») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-Map.js:15: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-Map.js:15: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-empty-sets.js:12: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-empty-sets.js:12: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-itself.js:11: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-itself.js:11: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-same-sets.js:12: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-same-sets.js:12: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-sets.js:12: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/compares-sets.js:12: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/isSubsetOf.js:10: Test262Error: `typeof Set.prototype.isSubsetOf` is `'function'` Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/isSubsetOf.js:10: strict mode: Test262Error: `typeof Set.prototype.isSubsetOf` is `'function'` Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/length.js:11: Test262Error: Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/length.js:11: strict mode: Test262Error: Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/name.js:11: Test262Error: Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/name.js:11: strict mode: Test262Error: Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/not-a-constructor.js:17: Test262Error: isConstructor invoked with a non-function value
-test262/test/built-ins/Set/prototype/isSubsetOf/not-a-constructor.js:17: strict mode: Test262Error: isConstructor invoked with a non-function value
-test262/test/built-ins/Set/prototype/isSubsetOf/require-internal-slot.js:17: Test262Error: Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/require-internal-slot.js:17: strict mode: Test262Error: Expected SameValue(«undefined», «function») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/set-like-array.js:21: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/set-like-array.js:21: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/set-like-class-mutation.js:25: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/set-like-class-mutation.js:25: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/set-like-class-order.js:43: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/set-like-class-order.js:43: strict mode: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/size-is-a-number.js:24: Test262Error: GetSetRecord coerces size Expected SameValue(«0», «1») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/size-is-a-number.js:24: strict mode: Test262Error: GetSetRecord coerces size Expected SameValue(«0», «1») to be true
-test262/test/built-ins/Set/prototype/isSubsetOf/subclass-receiver-methods.js:32: TypeError: not a function
-test262/test/built-ins/Set/prototype/isSubsetOf/subclass-receiver-methods.js:32: strict mode: TypeError: not a function
 test262/test/built-ins/Set/prototype/isSupersetOf/allows-set-like-class.js:29: TypeError: not a function
 test262/test/built-ins/Set/prototype/isSupersetOf/allows-set-like-class.js:29: strict mode: TypeError: not a function
 test262/test/built-ins/Set/prototype/isSupersetOf/allows-set-like-object.js:27: TypeError: not a function
@@ -173,10 +137,4 @@ test262/test/language/expressions/member-expression/computed-reference-null-or-u
 test262/test/language/expressions/optional-chaining/optional-call-preserves-this.js:21: TypeError: cannot read property 'c' of undefined
 test262/test/language/expressions/optional-chaining/optional-call-preserves-this.js:16: strict mode: TypeError: cannot read property '_b' of undefined
 test262/test/language/module-code/top-level-await/async-module-does-not-block-sibling-modules.js:13: SyntaxError: Could not find export 'check' in module 'test262/test/language/module-code/top-level-await/async-module-sync_FIXTURE.js'
-test262/test/staging/set-is-subset-on-set-like.js:24: TypeError: not a function
-test262/test/staging/set-is-subset-on-set-like.js:24: strict mode: TypeError: not a function
-test262/test/staging/set-is-subset-table-receiver-cleared.js:25: TypeError: not a function
-test262/test/staging/set-is-subset-table-receiver-cleared.js:25: strict mode: TypeError: not a function
-test262/test/staging/set-is-subset-table-transition.js:28: TypeError: not a function
-test262/test/staging/set-is-subset-table-transition.js:28: strict mode: TypeError: not a function
 test262/test/staging/top-level-await/tla-hang-entry.js:10: TypeError: $DONE() not called