Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

19 files changed, 534 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/boolean-trap-result-boolean-false.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/boolean-trap-result-boolean-false.js
new file mode 100644
index 0000000000..5addc7638b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/boolean-trap-result-boolean-false.js
@@ -0,0 +1,34 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    The result is a Boolean value.
+features: [Proxy, Reflect]
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+  deleteProperty: function() {
+    return 0;
+  }
+});
+
+Object.defineProperties(target, {
+  isConfigurable: {
+    value: 1,
+    configurable: true
+  },
+  notConfigurable: {
+    value: 1,
+    configurable: false
+  }
+});
+
+assert.sameValue(Reflect.deleteProperty(p, "attr"), false);
+assert.sameValue(Reflect.deleteProperty(p, "isConfigurable"), false);
+assert.sameValue(Reflect.deleteProperty(p, "notConfigurable"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/boolean-trap-result-boolean-true.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/boolean-trap-result-boolean-true.js
new file mode 100644
index 0000000000..85c873e173
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/boolean-trap-result-boolean-true.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    The result is a Boolean value.
+features: [Proxy, Reflect]
+---*/
+
+var p = new Proxy({}, {
+  deleteProperty: function() {
+    return 1;
+  }
+});
+
+assert.sameValue(Reflect.deleteProperty(p, "attr"), true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/browser.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/browser.js
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/browser.js
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/call-parameters.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/call-parameters.js
new file mode 100644
index 0000000000..5f5c585a94
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/call-parameters.js
@@ -0,0 +1,36 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P»)).
+info: |
+    6.1.7.2 Object Internal Methods and Internal Slots
+
+    (...) Receiver is used as the this value when evaluating the code
+features: [Proxy]
+---*/
+
+var _handler, _target, _prop;
+var target = {
+  attr: 1
+};
+var handler = {
+  deleteProperty: function(t, prop) {
+    _handler = this;
+    _target = t;
+    _prop = prop;
+    return delete t[prop];
+  }
+};
+var p = new Proxy(target, handler);
+
+delete p.attr;
+
+assert.sameValue(_handler, handler, "handler object as the trap context");
+assert.sameValue(_target, target, "first argument is the target object");
+assert.sameValue(_prop, "attr", "second argument is the property name");
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/null-handler.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/null-handler.js
new file mode 100644
index 0000000000..012a8aec02
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/null-handler.js
@@ -0,0 +1,22 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    3. If handler is null, throw a TypeError exception.
+features: [Proxy]
+---*/
+
+var p = Proxy.revocable({
+  attr: 1
+}, {});
+
+p.revoke();
+
+assert.throws(TypeError, function() {
+  delete p.proxy.attr;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-false-not-strict.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-false-not-strict.js
new file mode 100644
index 0000000000..c6209578fc
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-false-not-strict.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    11. If booleanTrapResult is false, return false.
+flags: [noStrict]
+features: [Proxy]
+---*/
+
+var p = new Proxy({}, {
+  deleteProperty: function() {
+    return false;
+  }
+});
+
+assert.sameValue(delete p.attr, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-false-strict-strict.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-false-strict-strict.js
new file mode 100644
index 0000000000..ae528d4416
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-false-strict-strict.js
@@ -0,0 +1,22 @@
+'use strict';
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    11. If booleanTrapResult is false, return false.
+flags: [onlyStrict]
+features: [Proxy, Reflect]
+---*/
+
+var p = new Proxy({}, {
+  deleteProperty: function() {
+    return false;
+  }
+});
+
+assert.sameValue(Reflect.deleteProperty(p, "attr"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-is-abrupt.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-is-abrupt.js
new file mode 100644
index 0000000000..e325aea4e8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/return-is-abrupt.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    Trap return is an abrupt.
+info: |
+    9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P»)).
+    10. ReturnIfAbrupt(booleanTrapResult).
+features: [Proxy]
+---*/
+
+var p = new Proxy({}, {
+  deleteProperty: function(t, prop) {
+    throw new Test262Error();
+  }
+});
+
+assert.throws(Test262Error, function() {
+  delete p.attr;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/shell.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/shell.js
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/shell.js
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js
new file mode 100644
index 0000000000..4662f2ca04
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-configurable-target-is-not-extensible.js
@@ -0,0 +1,35 @@
+// Copyright (C) 2019 Aleksey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-delete-p
+description: >
+    Throw a TypeError exception if trap result is true, targetDesc is configurable,
+    and target is not extensible.
+info: |
+    [[Delete]] (P)
+
+    ...
+    13. Let extensibleTarget be ? IsExtensible(target).
+    14. If extensibleTarget is false, throw a TypeError exception.
+    ...
+features: [Proxy, Reflect, proxy-missing-checks]
+---*/
+
+var trapCalls = 0;
+var p = new Proxy({prop: 1}, {
+  deleteProperty: function(t, prop) {
+    Object.preventExtensions(t);
+    trapCalls++;
+    return true;
+  },
+});
+
+assert.throws(TypeError, function() {
+  Reflect.deleteProperty(p, "prop");
+});
+assert.sameValue(trapCalls, 1);
+
+assert(Reflect.deleteProperty(p, "nonExistent"));
+assert.sameValue(trapCalls, 2);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-not-configurable.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-not-configurable.js
new file mode 100644
index 0000000000..9b6f079ad5
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-not-configurable.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    A property cannot be reported as deleted, if it exists as a non-configurable
+    own property of the target object.
+info: |
+    14. If targetDesc.[[Configurable]] is false, throw a TypeError exception.
+features: [Proxy]
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+  deleteProperty: function() {
+    return true;
+  }
+});
+
+Object.defineProperty(target, "attr", {
+  configurable: false,
+  value: 1
+});
+
+assert.throws(TypeError, function() {
+  delete p.attr;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-undefined-return-true.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-undefined-return-true.js
new file mode 100644
index 0000000000..62b5ca1872
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/targetdesc-is-undefined-return-true.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    14. If targetDesc is undefined, return true.
+features: [Proxy]
+---*/
+
+var p = new Proxy({}, {
+  deleteProperty: function() {
+    return true;
+  }
+});
+
+assert.sameValue(delete p.attr, true);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-missing-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-missing-target-is-proxy.js
new file mode 100644
index 0000000000..8516740202
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-missing-target-is-proxy.js
@@ -0,0 +1,50 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-delete-p
+description: >
+  If "deleteProperty" trap is null or undefined, [[Delete]] call is
+  properly forwarded to [[ProxyTarget]] (which is also a Proxy object).
+info: |
+  [[Delete]] ( P )
+
+  [...]
+  5. Let target be O.[[ProxyTarget]].
+  6. Let trap be ? GetMethod(handler, "deleteProperty").
+  7. If trap is undefined, then
+    a. Return ? target.[[Delete]](P).
+features: [Proxy, Reflect]
+---*/
+
+var plainObject = {
+  get foo() {},
+};
+
+Object.defineProperty(plainObject, "bar", {
+  configurable: false,
+});
+
+var plainObjectTarget = new Proxy(plainObject, {});
+var plainObjectProxy = new Proxy(plainObjectTarget, {});
+
+assert(delete plainObjectProxy.foo);
+assert(!plainObject.hasOwnProperty("foo"));
+
+assert(!Reflect.deleteProperty(plainObjectProxy, "bar"));
+assert(plainObject.hasOwnProperty("bar"));
+
+
+var func = function() {};
+var funcTarget = new Proxy(func, {});
+var funcProxy = new Proxy(funcTarget, {});
+
+assert(delete funcProxy.length);
+assert(!func.hasOwnProperty("length"));
+
+assert.throws(TypeError, function() {
+  "use strict";
+  delete funcProxy.prototype;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-not-callable-realm.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-not-callable-realm.js
new file mode 100644
index 0000000000..ac5a7a11c1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-not-callable-realm.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-delete-p
+description: >
+  Throws when trap is not callable. (honoring the Realm of the current
+  execution context)
+info: |
+    9.5.10 [[Delete]] (P)
+
+    6. Let trap be GetMethod(handler, "deleteProperty").
+    ...
+
+    7.3.9 GetMethod (O, P)
+
+    5. If IsCallable(func) is false, throw a TypeError exception.
+features: [cross-realm, Proxy]
+---*/
+
+var OProxy = $262.createRealm().global.Proxy;
+var p = new OProxy({}, {
+  deleteProperty: {}
+});
+
+assert.throws(TypeError, function() {
+  delete p.attr;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-not-callable.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-not-callable.js
new file mode 100644
index 0000000000..c6994fc13b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-not-callable.js
@@ -0,0 +1,27 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    Throws when trap is not callable.
+info: |
+    9.5.10 [[Delete]] (P)
+
+    6. Let trap be GetMethod(handler, "deleteProperty").
+    ...
+
+    7.3.9 GetMethod (O, P)
+
+    5. If IsCallable(func) is false, throw a TypeError exception.
+features: [Proxy]
+---*/
+
+var p = new Proxy({}, {
+  deleteProperty: {}
+});
+
+assert.throws(TypeError, function() {
+  delete p.attr;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-null-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-null-target-is-proxy.js
new file mode 100644
index 0000000000..3ba8d7b741
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-null-target-is-proxy.js
@@ -0,0 +1,43 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-delete-p
+description: >
+  If "deleteProperty" trap is null or undefined, [[Delete]] call is
+  properly forwarded to [[ProxyTarget]] (which is also a Proxy object).
+info: |
+  [[Delete]] ( P )
+
+  [...]
+  5. Let target be O.[[ProxyTarget]].
+  6. Let trap be ? GetMethod(handler, "deleteProperty").
+  7. If trap is undefined, then
+    a. Return ? target.[[Delete]](P).
+features: [Proxy, Reflect]
+---*/
+
+var stringTarget = new Proxy(new String("str"), {});
+var stringProxy = new Proxy(stringTarget, {
+  deleteProperty: null,
+});
+
+assert(!Reflect.deleteProperty(stringProxy, "length"));
+assert.throws(TypeError, function() {
+  "use strict";
+  delete stringProxy[0];
+});
+
+
+var regExpTarget = new Proxy(/(?:)/g, {});
+var regExpProxy = new Proxy(regExpTarget, {
+  deleteProperty: null,
+});
+
+assert(delete regExpProxy.foo);
+assert.throws(TypeError, function() {
+  "use strict";
+  delete regExpProxy.lastIndex;
+});
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-not-strict.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-not-strict.js
new file mode 100644
index 0000000000..f31c9a0e35
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-not-strict.js
@@ -0,0 +1,33 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    8. If trap is undefined, then Return target.[[Delete]](P).
+flags: [noStrict]
+features: [Proxy]
+---*/
+
+var target = {
+  attr: 1
+};
+var p = new Proxy(target, {});
+
+assert.sameValue(delete p.attr, true);
+assert.sameValue(delete p.notThere, true);
+assert.sameValue(
+  Object.getOwnPropertyDescriptor(target, "attr"),
+  undefined
+);
+
+Object.defineProperty(target, "attr", {
+  configurable: false,
+  enumerable: true,
+  value: 1
+});
+
+assert.sameValue(delete p.attr, false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-strict-strict.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-strict-strict.js
new file mode 100644
index 0000000000..39195e7b89
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-strict-strict.js
@@ -0,0 +1,34 @@
+'use strict';
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 9.5.10
+description: >
+    [[Delete]] (P)
+
+    8. If trap is undefined, then Return target.[[Delete]](P).
+flags: [onlyStrict]
+features: [Proxy, Reflect]
+---*/
+
+var target = {
+  attr: 1
+};
+var p = new Proxy(target, {});
+
+assert.sameValue(delete p.attr, true);
+assert.sameValue(delete p.notThere, true);
+assert.sameValue(
+  Object.getOwnPropertyDescriptor(target, "attr"),
+  undefined
+);
+
+Object.defineProperty(target, "attr", {
+  configurable: false,
+  enumerable: true,
+  value: 1
+});
+
+assert.sameValue(Reflect.deleteProperty(p, "attr"), false);
+
+reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-target-is-proxy.js
new file mode 100644
index 0000000000..2195deca63
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/deleteProperty/trap-is-undefined-target-is-proxy.js
@@ -0,0 +1,54 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-delete-p
+description: >
+  If "deleteProperty" trap is null or undefined, [[Delete]] call is
+  properly forwarded to [[ProxyTarget]] (which is also a Proxy object).
+info: |
+  [[Delete]] ( P )
+
+  [...]
+  5. Let target be O.[[ProxyTarget]].
+  6. Let trap be ? GetMethod(handler, "deleteProperty").
+  7. If trap is undefined, then
+    a. Return ? target.[[Delete]](P).
+features: [Proxy, Reflect]
+---*/
+
+var array = [1];
+var arrayTarget = new Proxy(array, {});
+var arrayProxy = new Proxy(arrayTarget, {
+  deleteProperty: undefined,
+});
+
+assert(delete arrayProxy[0]);
+assert(!array.hasOwnProperty("0"));
+
+assert(!Reflect.deleteProperty(arrayProxy, "length"));
+assert.sameValue(array.length, 1);
+
+
+var trapCalls = 0;
+var target = new Proxy({}, {
+  deleteProperty: function(_target, key) {
+    trapCalls++;
+    return key === "foo";
+  },
+});
+
+var proxy = new Proxy(target, {
+  deleteProperty: undefined,
+});
+
+assert(delete proxy.foo);
+assert.sameValue(trapCalls, 1);
+
+assert.throws(TypeError, function() {
+  "use strict";
+  delete proxy.bar;
+});
+assert.sameValue(trapCalls, 2);
+
+reportCompare(0, 0);