JSTests/test262/test/language/statements/variable/dstr/obj-ptrn-id-init-throws.js

// This file was procedurally generated from the following sources:
// - src/dstr-binding/obj-ptrn-id-init-throws.case
// - src/dstr-binding/error/var-stmt.template
/*---
description: Error thrown when evaluating the initializer (`var` statement)
esid: sec-variable-statement-runtime-semantics-evaluation
features: [destructuring-binding]
flags: [generated]
info: |
    VariableDeclaration : BindingPattern Initializer

    1. Let rhs be the result of evaluating Initializer.
    2. Let rval be GetValue(rhs).
    3. ReturnIfAbrupt(rval).
    4. Return the result of performing BindingInitialization for
       BindingPattern passing rval and undefined as arguments.

    13.3.3.7 Runtime Semantics: KeyedBindingInitialization

    SingleNameBinding : BindingIdentifier Initializeropt

    [...]
    6. If Initializer is present and v is undefined, then
       a. Let  defaultValue be the result of evaluating Initializer.
       b. Let v be GetValue(defaultValue).
       c. ReturnIfAbrupt(v).
---*/
function thrower() {
  throw new Test262Error();
}

assert.throws(Test262Error, function() {
  var { x = thrower() } = {};
});