Source code
Revision control
Copy as Markdown
Other Tools
// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-prop-obj.case
// - src/dstr-binding/default/cls-decl-meth-static-dflt.template
/*---
description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression method (default parameter))
esid: sec-runtime-semantics-bindingclassdeclarationevaluation
features: [destructuring-binding, default-parameters]
flags: [generated]
info: |
ClassDeclaration : class BindingIdentifier ClassTail
1. Let className be StringValue of BindingIdentifier.
2. 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
b. Else,
Let status be the result of performing PropertyDefinitionEvaluation for
m with arguments F and false.
[...]
14.3.8 Runtime Semantics: DefineMethod
MethodDefinition : PropertyName ( StrictFormalParameters ) { FunctionBody }
[...]
6. Let closure be FunctionCreate(kind, StrictFormalParameters, FunctionBody,
scope, strict). If functionPrototype was passed as a parameter then pass its
value as the functionPrototype optional argument of FunctionCreate.
[...]
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.
[...]
13.3.3.7 Runtime Semantics: KeyedBindingInitialization
[...]
3. If Initializer is present and v is undefined, then
[...]
4. Return the result of performing BindingInitialization for BindingPattern
passing v and environment as arguments.
---*/
var callCount = 0;
class C {
static method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
assert.sameValue(x, undefined);
assert.sameValue(y, undefined);
assert.sameValue(z, 7);
assert.throws(ReferenceError, function() {
w;
});
callCount = callCount + 1;
}
};
C.method();
assert.sameValue(callCount, 1, 'method invoked exactly once');
reportCompare(0, 0);