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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/language/statements/class/elements/private-methods/prod-private-method.js | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/elements/private-methods/prod-private-method.js b/js/src/tests/test262/language/statements/class/elements/private-methods/prod-private-method.js new file mode 100644 index 0000000000..77c16e2a58 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/elements/private-methods/prod-private-method.js @@ -0,0 +1,122 @@ +// This file was procedurally generated from the following sources: +// - src/class-elements/prod-private-method.case +// - src/class-elements/private-methods/cls-decl.template +/*--- +description: Private Method (private method definitions in a class declaration) +esid: prod-MethodDefinition +features: [class, class-methods-private] +flags: [generated] +info: | + ClassElement : + MethodDefinition + ... + ; + + ClassElementName : + PropertyName + PrivateName + + PrivateName :: + # IdentifierName + + MethodDefinition : + ClassElementName ( UniqueFormalParameters ) { FunctionBody } + GeneratorMethod + AsyncMethod + AsyncGeneratorMethod + get ClassElementName () { FunctionBody } + set ClassElementName ( PropertySetParameterList ) { FunctionBody } + + GeneratorMethod : + * ClassElementName ( UniqueFormalParameters ){GeneratorBody} + + AsyncMethod : + async [no LineTerminator here] ClassElementName ( UniqueFormalParameters ) { AsyncFunctionBody } + + AsyncGeneratorMethod : + async [no LineTerminator here]* ClassElementName ( UniqueFormalParameters ) { AsyncGeneratorBody } + + --- + + InitializeClassElements ( F, proto ) + + ... + 5. For each item element in order from elements, + a. Assert: If element.[[Placement]] is "prototype" or "static", then element.[[Key]] is not a Private Name. + b. If element.[[Kind]] is "method" and element.[[Placement]] is "static" or "prototype", + i. Let receiver be F if element.[[Placement]] is "static", else let receiver be proto. + ii. Perform ? DefineClassElement(receiver, element). + + InitializeInstanceElements ( O, constructor ) + + ... + 3. Let elements be the value of F's [[Elements]] internal slot. + 4. For each item element in order from elements, + a. If element.[[Placement]] is "own" and element.[[Kind]] is "method", + i. Perform ? DefineClassElement(O, element). + + DefineClassElement (receiver, element) + + ... + 6. If key is a Private Name, + a. Perform ? PrivateFieldDefine(receiver, key, descriptor). + + PrivateFieldDefine (P, O, desc) + + ... + 6. Append { [[PrivateName]]: P, [[PrivateFieldDescriptor]]: desc } to O.[[PrivateFieldDescriptors]]. + +---*/ + + +/*** template notes + * method should always be #m + * the template provides c.ref() for external reference + */ + +function hasProp(obj, name, expected, msg) { + var hasOwnProperty = Object.prototype.hasOwnProperty.call(obj, name); + assert.sameValue(hasOwnProperty, expected, msg); + + var hasProperty = Reflect.has(obj, name); + assert.sameValue(hasProperty, expected, msg); +} + +class C { + #m() { return 42; } + + + get ref() { return this.#m; } + + constructor() { + hasProp(this, '#m', false, 'private methods are defined in an special internal slot and cannot be found as own properties'); + assert.sameValue(typeof this.#m, 'function'); + assert.sameValue(this.ref, this.#m, 'returns the same value'); + assert.sameValue(this.#m, (() => this)().#m, 'memberexpression and call expression forms'); + + assert.sameValue(this.#m(), 42, 'already defined in the ctor'); + assert.sameValue(this.#m.name, '#m', 'function name inside constructor'); + + } +} + +var c = new C(); +var other = new C(); + +hasProp(C.prototype, '#m', false, 'method is not defined in the prototype'); +hasProp(C, '#m', false, 'method is not defined in the contructor'); +hasProp(c, '#m', false, 'method cannot be seen outside of the class'); + +/*** + * MethodDefinition : ClassElementName ( UniqueFormalParameters ) { FunctionBody } + * + * 1. Let methodDef be DefineMethod of MethodDefinition with argument homeObject. + * ... + */ +assert.sameValue(c.ref, other.ref, 'The method is defined once, and reused on every new instance'); + +// gets the returned value from #m +assert.sameValue(c.ref(), 42, 'function return'); +assert.sameValue(c.ref.name, '#m', 'function name is preserved external reference'); + +reportCompare(0, 0); |