Handle errors in JSON.parse triggered by Proxies (#4134)

Fixes: #4130

JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com

tests/jerry/es.next/json-parse-proxy.js

@@ -0,0 +1,88 @@
+// 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.
+
+/* Test JSON parse [[delete]] with Array */
+var badDeleteArray = new Proxy([0], {
+  deleteProperty: function() {
+    throw "My Super Error A";
+  }
+});
+
+try {
+  JSON.parse('[0,0]', function() { this[1] = badDeleteArray; });
+} catch (ex) {
+  assert(ex === "My Super Error A");
+}
+
+/* Test JSON parse [[delete]] with Objects */
+var badDeleteObj = new Proxy([0], {
+  deleteProperty: function() {
+    throw "My Super Error B";
+  }
+});
+
+try {
+  JSON.parse('[0,0]', function() { this[1] = badDeleteObj; });
+} catch (ex) {
+  assert(ex === "My Super Error B");
+}
+
+/* Test JSON parse property define with Array */
+var badDefineArray = new Proxy([null], {
+  defineProperty: function(_, name) {
+    throw "My Super Error C";
+  }
+});
+
+try {
+  JSON.parse('["first", null]', function(_, value) {
+    if (value === 'first') {
+      this[1] = badDefineArray;
+    }
+    return value;
+  });
+} catch (ex) {
+  assert(ex === "My Super Error C");
+}
+
+/* Test JSON parse property define with Object */
+var badDefineObj = new Proxy({0: null}, {
+  defineProperty: function(_, name) {
+    throw "My Super Error D";
+  }
+});
+
+try {
+  JSON.parse('["first", null]', function(_, value) {
+    if (value === 'first') {
+      this[1] = badDefineObj;
+    }
+    return value;
+  });
+} catch (ex) {
+  assert(ex === "My Super Error D");
+}
+
+/* Test JSON parse keys call */
+var badKeys = new Proxy({}, {
+  ownKeys: function() {
+    throw "My Super Error E";
+  }
+});
+
+try {
+  JSON.parse('[0,0]', function() { this[1] = badKeys; });
+} catch (ex) {
+  assert(ex === "My Super Error E");
+}