Implement Object.prototype.{__lookupGetter__, __lookupSetter__} (#4039)

__lookupGetter__ is based on ECMA-262 v11, B.2.2.4 __lookupSetter__ is based on ECMA-262 v11, B.2.2.5 JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
2020-08-04 16:41:05 +02:00
parent b5a96c9eca
commit 945b22976a
7 changed files with 313 additions and 35 deletions
@@ -0,0 +1,92 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+var obj = {
+  get foo() { return "bar" },
+  qux: 1,
+  set bar(value) { this.x = value }
+};
+
+var foo = Object.prototype.__lookupGetter__.call(obj, "foo");
+assert(foo() === "bar");
+assert(Object.prototype.__lookupGetter__.call(obj, "qux") === undefined);
+assert(Object.prototype.__lookupGetter__.call(obj, "baz") === undefined);
+assert(Object.prototype.__lookupGetter__.call(obj, "bar") === undefined);
+
+var foo = Object.prototype.__lookupGetter__.call(Object.create(obj), "foo");
+assert(foo() === "bar");
+assert(Object.prototype.__lookupGetter__.call(obj, "qux") === undefined);
+assert(Object.prototype.__lookupGetter__.call(obj, "baz") === undefined);
+assert(Object.prototype.__lookupGetter__.call(obj, "bar") === undefined);
+
+var sym = Symbol();
+var sym2 = Symbol();
+var obj = {};
+Object.defineProperty(obj, sym, { get: function() { return "bar"; }});
+Object.defineProperty(obj, sym2, { value: 1 });
+var foo = Object.prototype.__lookupGetter__.call(obj, sym);
+
+assert(foo() === "bar");
+assert(Object.prototype.__lookupGetter__.call(obj, sym2) === undefined);
+assert(Object.prototype.__lookupGetter__.call(obj, Symbol()) === undefined);
+
+Object.prototype.__lookupGetter__.call(1, 'key');
+
+try {
+  Object.prototype.__lookupGetter__.call(null, 'key');
+  assert(false);
+} catch(e){
+  assert(e instanceof TypeError);
+}
+
+var a = {};
+var b = Object.create(a);
+b.foo = 1;
+Object.defineProperty(a, "foo", {function () {}})
+assert(b.__lookupGetter__("foo") === undefined);
+
+var gopd = [];
+var gpo = false;
+var p = new Proxy({}, {
+  getPrototypeOf: function(o) { gpo = true; return Object.getPrototypeOf(o); },
+  getOwnPropertyDescriptor: function(o, v) { gopd.push(v); return Object.getOwnPropertyDescriptor(o, v); }
+});
+
+Object.prototype.__lookupGetter__.call(p, "foo");
+assert(gopd + '' === "foo");
+assert(gpo === true);
+
+var __lookupGetter__ = Object.prototype.__lookupGetter__;
+var counter = 0;
+var key = {
+  toString: function() {
+    counter += 1;
+  }
+};
+
+try {
+  __lookupGetter__.call(undefined, key);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  __lookupGetter__.call(null, key);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+assert(counter === 0);
@@ -0,0 +1,91 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+var obj = {
+  set foo(value) { return "bar" },
+  qux: 1,
+  get bar() {}
+};
+  
+var foo = Object.prototype.__lookupSetter__.call(obj, "foo");
+assert(foo() === "bar");
+assert(Object.prototype.__lookupSetter__.call(obj, "qux") === undefined);
+assert(Object.prototype.__lookupSetter__.call(obj, "baz") === undefined);
+assert(Object.prototype.__lookupSetter__.call(obj, "bar") === undefined);
+
+var foo = Object.prototype.__lookupSetter__.call(Object.create(obj), "foo");
+assert(foo() === "bar");
+assert(Object.prototype.__lookupSetter__.call(obj, "qux") === undefined);
+assert(Object.prototype.__lookupSetter__.call(obj, "baz") === undefined);
+assert(Object.prototype.__lookupSetter__.call(obj, "bar") === undefined);
+
+var sym = Symbol();
+var sym2 = Symbol();
+var obj = {};
+Object.defineProperty(obj, sym, { set: function(value) { return "bar"; }});
+Object.defineProperty(obj, sym2, { value: 1 });
+var foo = Object.prototype.__lookupSetter__.call(obj, sym);
+
+assert(foo() === "bar");
+assert(Object.prototype.__lookupSetter__.call(obj, sym2) === undefined);
+assert(Object.prototype.__lookupSetter__.call(obj, Symbol()) === undefined);
+
+Object.prototype.__lookupSetter__.call(1, 'key');
+
+try {
+  Object.prototype.__lookupSetter__.call(null, 'key');
+  assert(false);
+} catch(e){
+  assert(e instanceof TypeError);
+}
+
+var a = {};
+var b = Object.create(a);
+b.foo = 1;
+Object.defineProperty(a, "foo", {function () {}})
+assert(b.__lookupSetter__("foo") === undefined);
+
+var gopd = [];
+var gpo = false;
+var p = new Proxy({}, {
+  getPrototypeOf: function(o) { gpo = true; return Object.getPrototypeOf(o); },
+  getOwnPropertyDescriptor: function(o, v) { gopd.push(v); return Object.getOwnPropertyDescriptor(o, v); }
+});
+
+Object.prototype.__lookupSetter__.call(p, "foo");
+assert(gopd + '' === "foo");
+assert(gpo);
+
+var __lookupSetter__ = Object.prototype.__lookupSetter__;
+var counter = 0;
+var key = {
+  toString: function() {
+    counter += 1;
+  }
+};
+
+try {
+  __lookupSetter__.call(undefined, key);  
+} catch (e) {
+  assert(e instanceof TypeError);
+}
+
+try {
+  __lookupSetter__.call(null, key);
+  assert(false);
+} catch (e) {
+  assert(e instanceof TypeError); 
+}
+
+assert(counter === 0);
@@ -18,38 +18,6 @@
  <test id="annexB/built-ins/Object/prototype/__defineSetter__/define-non-extensible.js"><reason></reason></test>
  <test id="annexB/built-ins/Object/prototype/__defineSetter__/setter-non-callable.js"><reason></reason></test>
  <test id="annexB/built-ins/Object/prototype/__defineSetter__/this-non-obj.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/key-invalid.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/length.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-not-found.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-own-acsr-w-getter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-own-acsr-wo-getter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-own-data.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-own-get-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-own-proto-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-proto-acsr-w-getter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-proto-acsr-wo-getter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-proto-data.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-proto-get-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/lookup-proto-proto-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/name.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/prop-desc.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupGetter__/this-non-obj.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/key-invalid.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/length.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-not-found.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-own-acsr-w-setter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-own-acsr-wo-setter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-own-data.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-own-get-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-own-proto-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-proto-acsr-w-setter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-proto-acsr-wo-setter.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-proto-data.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-proto-get-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/lookup-proto-proto-err.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/name.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/prop-desc.js"><reason></reason></test>
-  <test id="annexB/built-ins/Object/prototype/__lookupSetter__/this-non-obj.js"><reason></reason></test>
  <test id="annexB/built-ins/RegExp/match-indices/indices-groups-object.js"><reason></reason></test>
  <test id="annexB/built-ins/RegExp/named-groups/groups-object.js"><reason></reason></test>
  <test id="annexB/built-ins/RegExp/named-groups/non-unicode-malformed-lookbehind.js"><reason></reason></test>