tyler.durden
/
test262
mirror of https://github.com/tc39/test262.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Proxy: getOwnPropertyDescriptor

This commit is contained in:
Leonardo Balter 2015-06-02 18:55:12 -04:00
parent 79a256cd5a
commit a2f0f2888d
15 changed files with 475 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
test/built-ins/Proxy/getOwnPropertyDescriptor/call-parameters.js Normal file
View File

@ -0,0 +1,32 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Trap is called with hander context and parameters are target and P
info: >
[[GetOwnProperty]] (P)
...
9. Let trapResultObj be Call(trap, handler, «target, P»).
...
---*/
var _target, _handler, _prop;
var target = {attr: 1};
var handler = {
getOwnPropertyDescriptor: function(t, prop) {
_target = t;
_handler = this;
_prop = prop;
return Object.getOwnPropertyDescriptor(t);
}
};
var p = new Proxy(target, handler);
Object.getOwnPropertyDescriptor(p, "attr");
assert.sameValue(_handler, handler);
assert.sameValue(_target, target);
assert.sameValue(_prop, "attr");

15
test/built-ins/Proxy/getOwnPropertyDescriptor/null-handler.js Normal file
View File

@ -0,0 +1,15 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Throws a TypeError exception if handler is null.
---*/
var p = Proxy.revocable({}, {});
p.revoke();
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p.proxy);
});

32
test/built-ins/Proxy/getOwnPropertyDescriptor/result-is-undefined-target-is-not-extensible.js Normal file
View File

@ -0,0 +1,32 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Throws a TypeError exception if trap result is undefined and target is not
extensible
info: >
[[GetOwnProperty]] (P)
...
14. If trapResultObj is undefined, then
...
e. If ToBoolean(extensibleTarget) is false, throw a TypeError exception.
...
---*/
var target = {
foo: 1
};
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
return;
}
});
Object.preventExtensions(target);
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "foo");
});

33
test/built-ins/Proxy/getOwnPropertyDescriptor/result-is-undefined-targetdesc-is-not-configurable.js Normal file
View File

@ -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: 9.5.5
description: >
Throws a TypeError exception if trap result is undefined and target property
descriptor is not configurable
info: >
[[GetOwnProperty]] (P)
...
14. If trapResultObj is undefined, then
...
b. If targetDesc.[[Configurable]] is false, throw a TypeError exception.
...
---*/
var target = {};
Object.defineProperty(target, "foo", {
configurable: false,
enumerable: false,
value: 1
});
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
return;
}
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "foo");
});

31
test/built-ins/Proxy/getOwnPropertyDescriptor/result-is-undefined-targetdesc-is-undefined.js Normal file
View File

@ -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: 9.5.5
description: >
Throws a TypeError exception if trap result is undefined and target property
descriptor is undefined.
info: >
[[GetOwnProperty]] (P)
...
14. If trapResultObj is undefined, then
a. If targetDesc is undefined, return undefined.
...
---*/
var t = {};
var trapped;
var p = new Proxy(t, {
getOwnPropertyDescriptor: function(target, prop) {
trapped = true;
return;
}
});
assert.sameValue(
Object.getOwnPropertyDescriptor(p, "attr"),
undefined
);
assert(trapped);

28
test/built-ins/Proxy/getOwnPropertyDescriptor/result-is-undefined.js Normal file
View File

@ -0,0 +1,28 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Return undefined if trap result is undefined and target is extensible and
the target property descriptor is configurable.
info: >
[[GetOwnProperty]] (P)
...
14. If trapResultObj is undefined, then
...
f. Return undefined.
...
---*/
var target = {
attr: 1
};
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
return;
}
});
assert.sameValue(Object.getOwnPropertyDescriptor(p, "attr"), undefined);

48
test/built-ins/Proxy/getOwnPropertyDescriptor/result-type-is-not-object-nor-undefined.js Normal file
View File

@ -0,0 +1,48 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Throws a TypeError exception if trap result is neither Object nor Undefined
info: >
[[GetOwnProperty]] (P)
...
11. If Type(trapResultObj) is neither Object nor Undefined, throw a
TypeError exception.
...
features: [Symbol]
---*/
var target = {
number: 1,
symbol: Symbol(),
string: '',
boolean: true,
fn: function() {}
};
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
return t[prop];
}
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "number");
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "string");
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "symbol");
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "boolean");
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "fn");
});

31
test/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-is-invalid-descriptor.js Normal file
View File

@ -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: 9.5.5
description: >
Throws a TypeError exception if trap result and target property descriptors
are not compatible.
info: >
[[GetOwnProperty]] (P)
...
20. Let valid be IsCompatiblePropertyDescriptor (extensibleTarget,
resultDesc, targetDesc).
21. If valid is false, throw a TypeError exception.
---*/
var target = {};
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
var foo = { bar: 1 };
return Object.getOwnPropertyDescriptor(foo, "bar");
}
});
Object.preventExtensions(target);
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "bar");
});

39
test/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-is-not-configurable-targetdesc-is-configurable.js Normal file
View File

@ -0,0 +1,39 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Throws a TypeError exception if trap result is not configurable but target
property descriptor is configurable.
info: >
[[GetOwnProperty]] (P)
...
22. If resultDesc.[[Configurable]] is false, then
a. If targetDesc is undefined or targetDesc.[[Configurable]] is true,
then
i. Throw a TypeError exception.
...
---*/
var target = {
bar: 1
};
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
var foo = {};
Object.defineProperty(foo, "bar", {
configurable: false,
enumerable: true,
value: 1
});
return Object.getOwnPropertyDescriptor(foo, prop);
}
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "bar");
});

47
test/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-is-not-configurable-targetdesc-is-undefined.js Normal file
View File

@ -0,0 +1,47 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Throws a TypeError exception if trap result is not configurable but target
property descriptor is undefined.
info: >
[[GetOwnProperty]] (P)
...
2. Let handler be the value of the [[ProxyHandler]] internal slot of O.
...
5. Let target be the value of the [[ProxyTarget]] internal slot of O.
6. Let trap be GetMethod(handler, "getOwnPropertyDescriptor").
...
9. Let trapResultObj be Call(trap, handler, «target, P»).
...
12. Let targetDesc be target.[[GetOwnProperty]](P).
...
17. Let resultDesc be ToPropertyDescriptor(trapResultObj).
...
22. If resultDesc.[[Configurable]] is false, then
a. If targetDesc is undefined or targetDesc.[[Configurable]] is true, then
i. Throw a TypeError exception.
---*/
var target = {};
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
var foo = {};
Object.defineProperty(foo, "bar", {
configurable: false,
enumerable: true,
value: 1
});
return Object.getOwnPropertyDescriptor(foo, prop);
}
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "bar");
});

30
test/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-return-configurable.js Normal file
View File

@ -0,0 +1,30 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Return descriptor from trap result if it has the same value as the target
property descriptor.
---*/
var target = {};
var descriptor = {
configurable: true,
enumerable: true,
value: 1
};
Object.defineProperty(target, "bar", descriptor);
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
return Object.getOwnPropertyDescriptor(t, prop);
}
});
var proxyDesc = Object.getOwnPropertyDescriptor(p, "bar");
assert(proxyDesc.configurable);
assert(proxyDesc.enumerable);
assert.sameValue(proxyDesc.value, 1);
assert.sameValue(proxyDesc.writable, false);

29
test/built-ins/Proxy/getOwnPropertyDescriptor/resultdesc-return-not-configurable.js Normal file
View File

@ -0,0 +1,29 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Return descriptor from trap result if it has the same value as the target
property descriptor and they're not configurable.
---*/
var target = {};
Object.defineProperty(target, "attr", {
configurable: false,
enumerable: true,
value: 1
});
var p = new Proxy(target, {
getOwnPropertyDescriptor: function(t, prop) {
return Object.getOwnPropertyDescriptor(t, prop);
}
});
var proxyDesc = Object.getOwnPropertyDescriptor(p, "attr");
assert.sameValue(proxyDesc.configurable, false);
assert(proxyDesc.enumerable);
assert.sameValue(proxyDesc.value, 1);
assert.sameValue(proxyDesc.writable, false);

25
test/built-ins/Proxy/getOwnPropertyDescriptor/return-is-abrupt.js Normal file
View File

@ -0,0 +1,25 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Trap returns abrupt.
info: >
[[GetOwnProperty]] (P)
...
9. Let trapResultObj be Call(trap, handler, «target, P»).
10. ReturnIfAbrupt(trapResultObj).
...
includes: [Test262Error.js]
---*/
var p = new Proxy({}, {
getOwnPropertyDescriptor: function(t, prop) {
throw new Test262Error();
}
});
assert.throws(Test262Error, function() {
Object.getOwnPropertyDescriptor(p, "attr");
});

30
test/built-ins/Proxy/getOwnPropertyDescriptor/trap-is-not-callable.js Normal file
View File

@ -0,0 +1,30 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Throws a TypeError exception if trap is not callable.
info: >
[[GetOwnProperty]] (P)
...
2. Let handler be the value of the [[ProxyHandler]] internal slot of O.
...
5. Let target be the value of the [[ProxyTarget]] internal slot of O.
6. Let trap be GetMethod(handler, "getOwnPropertyDescriptor").
...
7.3.9 GetMethod (O, P)
...
2. Let func be GetV(O, P).
5. If IsCallable(func) is false, throw a TypeError exception.
...
---*/
var target = {};
var p = new Proxy(target, {
getOwnPropertyDescriptor: {}
});
assert.throws(TypeError, function() {
Object.getOwnPropertyDescriptor(p, "foo");
});

25
test/built-ins/Proxy/getOwnPropertyDescriptor/trap-is-undefined.js Normal file
View File

@ -0,0 +1,25 @@
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.5
description: >
Return target.[[GetOwnProperty]](P) if trap is undefined.
info: >
[[GetOwnProperty]] (P)
...
8. If trap is undefined, then
a. Return target.[[GetOwnProperty]](P).
...
includes: [propertyHelper.js]
---*/
var target = {attr: 1};
var p = new Proxy(target, {});
var proxyDesc = Object.getOwnPropertyDescriptor(p, "attr");
verifyEqualTo(p, "attr", 1);
verifyWritable(p, "attr");
verifyEnumerable(p, "attr");
verifyConfigurable(p, "attr");