Strict mode Failing
Expected no error, got SyntaxError: Invalid expression encountered
non-Strict mode Failing
Expected no error, got SyntaxError: Invalid expression encountered
Features:
- default-parameters
- generators
Expected no error, got SyntaxError: Invalid expression encountered
Expected no error, got SyntaxError: Invalid expression encountered
// This file was procedurally generated from the following sources:
// - src/function-forms/dflt-params-arg-val-not-undefined.case
// - src/function-forms/default/cls-expr-gen-meth.template
/*---
description: Use of initializer when argument value is not `undefined` (class expression method)
esid: sec-class-definitions-runtime-semantics-evaluation
features: [default-parameters, generators]
flags: [generated]
info: |
ClassExpression : class BindingIdentifieropt ClassTail
1. If BindingIdentifieropt is not present, let className be undefined.
2. Else, let className be StringValue of BindingIdentifier.
3. Let value be the result of ClassDefinitionEvaluation of ClassTail
with argument className.
[...]
14.5.14 Runtime Semantics: ClassDefinitionEvaluation
21. For each ClassElement m in order from methods
a. If IsStatic of m is false, then
i. Let status be the result of performing
PropertyDefinitionEvaluation for m with arguments proto and
false.
[...]
14.4.13 Runtime Semantics: PropertyDefinitionEvaluation
GeneratorMethod :
* PropertyName ( StrictFormalParameters ) { GeneratorBody }
1. Let propKey be the result of evaluating PropertyName.
2. ReturnIfAbrupt(propKey).
3. If the function code for this GeneratorMethod is strict mode code,
let strict be true. Otherwise let strict be false.
4. Let scope be the running execution context's LexicalEnvironment.
5. Let closure be GeneratorFunctionCreate(Method,
StrictFormalParameters, GeneratorBody, scope, strict).
9.2.1 [[Call]] ( thisArgument, argumentsList)
[...]
7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
[...]
9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
[...]
9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
[...]
23. Let iteratorRecord be Record {[[iterator]]:
CreateListIterator(argumentsList), [[done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
b. Let formalStatus be IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
14.1.19 Runtime Semantics: IteratorBindingInitialization
FormalsList : FormalsList , FormalParameter
[...]
23. Let iteratorRecord be Record {[[Iterator]]:
CreateListIterator(argumentsList), [[Done]]: false}.
24. If hasDuplicates is true, then
[...]
25. Else,
a. Perform ? IteratorBindingInitialization for formals with
iteratorRecord and env as arguments.
[...]
---*/
var obj = {};
var falseCount = 0;
var stringCount = 0;
var nanCount = 0;
var zeroCount = 0;
var nullCount = 0;
var objCount = 0;
var callCount = 0;
var C = class {
*method(aFalse = falseCount +=1, aString = stringCount += 1, aNaN = nanCount += 1, a0 = zeroCount += 1, aNull = nullCount += 1, aObj = objCount +=1) {
assert.sameValue(aFalse, false);
assert.sameValue(aString, '');
assert.sameValue(aNaN, NaN);
assert.sameValue(a0, 0);
assert.sameValue(aNull, null);
assert.sameValue(aObj, obj);
callCount = callCount + 1;
}
};
C.prototype.method(false, '', NaN, 0, null, obj).next();
// Stores a reference `ref` for case evaluation
var ref = C.prototype.method;
assert.sameValue(callCount, 1, 'method invoked exactly once');
assert.sameValue(falseCount, 0, 'initializer not evaluated: false');
assert.sameValue(stringCount, 0, 'initializer not evaluated: string');
assert.sameValue(nanCount, 0, 'initializer not evaluated: NaN');
assert.sameValue(zeroCount, 0, 'initializer not evaluated: 0');
assert.sameValue(nullCount, 0, 'initializer not evaluated: null');
assert.sameValue(objCount, 0, 'initializer not evaluated: object');