Added private static accessor cases with direct eval access (#2305)

This commit is contained in:
Caio Lima 2019-08-28 12:44:14 -03:00 committed by Leo Balter
parent 8042c57d9b
commit 8790a8e98a
2 changed files with 123 additions and 0 deletions

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// Copyright (C) 2019 Caio Lima (Igalia SL). All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Private static getter is visible to direct eval code
esid: sec-privatefieldget
info: |
PrivateFieldGet (P, O)
1. Assert: P is a Private Name.
2. If O is not an object, throw a TypeError exception.
3. If P.[[Kind]] is "field",
a. Let entry be PrivateFieldFind(P, O).
b. If entry is empty, throw a TypeError exception.
c. Return entry.[[PrivateFieldValue]].
4. Perform ? PrivateBrandCheck(O, P).
5. If P.[[Kind]] is "method",
a. Return P.[[Value]].
6. Else,
a. Assert: P.[[Kind]] is "accessor".
b. If P does not have a [[Get]] field, throw a TypeError exception.
c. Let getter be P.[[Get]].
d. Return ? Call(getter, O).
ClassElementName : PrivateIdentifier
1. Let privateIdentifier be StringValue of PrivateIdentifier.
2. Let privateName be NewPrivateName(privateIdentifier).
3. Let scope be the running execution context's PrivateEnvironment.
4. Let scopeEnvRec be scope's EnvironmentRecord.
5. Perform ! scopeEnvRec.InitializeBinding(privateIdentifier, privateName).
6. Return privateName.
MakePrivateReference ( baseValue, privateIdentifier )
1. Let env be the running execution context's PrivateEnvironment.
2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
3. Let privateName be GetValue(privateNameBinding).
4. Assert: privateName is a Private Name.
5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
features: [class-static-methods-private, class]
---*/
class C {
static get #m() {
return 'Test262';
}
static getWithEval() {
return eval('this.#m');
}
}
class D {
static get #m() {
throw new Test262Error('should never be executed');
}
}
assert.sameValue(C.getWithEval(), 'Test262');
assert.throws(TypeError, function() {
C.getWithEval.call(D);
}, 'invalid access to a static private getter');

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// Copyright (C) 2019 Caio Lima (Igalia SL). All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Private static setter is visible to direct eval code
esid: sec-privatefieldget
info: |
PrivateFieldGet (P, O)
1. Assert: P is a Private Name.
2. If O is not an object, throw a TypeError exception.
3. If P.[[Kind]] is "field",
a. Let entry be PrivateFieldFind(P, O).
b. If entry is empty, throw a TypeError exception.
c. Return entry.[[PrivateFieldValue]].
4. Perform ? PrivateBrandCheck(O, P).
5. If P.[[Kind]] is "method",
a. Return P.[[Value]].
6. Else,
a. Assert: P.[[Kind]] is "accessor".
b. If P does not have a [[Get]] field, throw a TypeError exception.
c. Let getter be P.[[Get]].
d. Return ? Call(getter, O).
ClassElementName : PrivateIdentifier
1. Let privateIdentifier be StringValue of PrivateIdentifier.
2. Let privateName be NewPrivateName(privateIdentifier).
3. Let scope be the running execution context's PrivateEnvironment.
4. Let scopeEnvRec be scope's EnvironmentRecord.
5. Perform ! scopeEnvRec.InitializeBinding(privateIdentifier, privateName).
6. Return privateName.
MakePrivateReference ( baseValue, privateIdentifier )
1. Let env be the running execution context's PrivateEnvironment.
2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
3. Let privateName be GetValue(privateNameBinding).
4. Assert: privateName is a Private Name.
5. Return a value of type Reference whose base value is baseValue, whose referenced name is privateName, whose strict reference flag is true.
features: [class-static-methods-private, class]
---*/
class C {
static set #m(v) {
this._v = v;
}
static setWithEval() {
eval('this.#m = "Test262"');
}
}
class D {
static set #m(v) {
throw new Test262Error('should never be called');
}
}
C.setWithEval();
assert.sameValue(C._v, 'Test262');
assert.throws(TypeError, function() {
C.getWithEval.call(D);
}, 'invalid access to a static private getter');