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Undefined private name access in computed property keys should throw TypeError (#2390)

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Refs: https://github.com/tc39/proposal-class-fields/pull/269
This commit is contained in:
Joyee Cheung 2019-10-09 02:39:15 +08:00 committed by Leo Balter
parent a898fe9826
commit 13882715c3
1 changed files with 11 additions and 18 deletions
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29
test/language/statements/class/elements/private-field-is-visible-in-computed-properties.js
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@ -13,6 +13,8 @@ info: |
8. If ClassBodyopt is present, then 8. If ClassBodyopt is present, then
a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt, a. For each element dn of the PrivateBoundIdentifiers of ClassBodyopt,
i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true). i. Perform classPrivateEnvRec.CreateImmutableBinding(dn, true).
ii. Let privateName be NewPrivateName(dn).
iii. Perform ! classPrivateEnvRec.InitializeBinding(dn, dn).
... ...
15. Set the running execution context's LexicalEnvironment to classScope. 15. Set the running execution context's LexicalEnvironment to classScope.
16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment. 16. Set the running execution context's PrivateEnvironment to classPrivateEnvironment.
@ -22,35 +24,26 @@ info: |
i. Let field be the result of ClassElementEvaluation for e with arguments proto and false. i. Let field be the result of ClassElementEvaluation for e with arguments proto and false.
... ...
MemberExpression : MemberExpression . PrivateIdentifier
...
5. Return MakePrivateReference(bv, fieldNameString).
MakePrivateReference ( baseValue, privateIdentifier )
...
2. Let privateNameBinding be ? ResolveBinding(privateIdentifier, env).
3. Let privateName be GetValue(privateNameBinding).
...
GetValue ( V ) GetValue ( V )
... ...
6. Else, 5. If IsPropertyReference(V), then
a. Assert: base is an Environment Record.
b. Return ? base.GetBindingValue(GetReferencedName(V), IsStrictReference(V)).
GetBindingValue ( N, S )
... ...
3. If the binding for N in envRec is an uninitialized binding, throw a ReferenceError exception. b. If IsPrivateReference(V), then
i. Return ? PrivateFieldGet(GetReferencedName(V), base).
PrivateFieldGet ( P, O )
...
4. If entry is empty, throw a TypeError exception.
... ...
features: [class-fields-private, class-fields-public, class] features: [class-fields-private, class-fields-public, class]
---*/ ---*/
const self = this; const self = this;
assert.throws(ReferenceError, function() { assert.throws(TypeError, function() {
class C { class C {
[self.#f] = 'Test262'; [self.#f] = 'Test262';
#f = 'foo'; #f = 'foo';
} }
}, 'access to a not defined private field in object should throw a ReferenceError'); }, 'access to a not defined private field in object should throw a TypeError');