JSTests/test262/test/language/statements/try/dstr/ary-ptrn-elem-id-init-unresolvable.js

// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-unresolvable.case
// - src/dstr-binding/error/try.template
/*---
description: Destructuring initializer is an unresolvable reference (try statement)
esid: sec-runtime-semantics-catchclauseevaluation
features: [destructuring-binding]
flags: [generated]
info: |
    Catch : catch ( CatchParameter ) Block

    [...]
    5. Let status be the result of performing BindingInitialization for
       CatchParameter passing thrownValue and catchEnv as arguments.
    [...]

    13.3.3.6 Runtime Semantics: IteratorBindingInitialization

    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).

    6.2.3.1 GetValue (V)

    1. ReturnIfAbrupt(V).
    2. If Type(V) is not Reference, return V.
    3. Let base be GetBase(V).
    4. If IsUnresolvableReference(V), throw a ReferenceError exception.
---*/

assert.throws(ReferenceError, function() {
  try {
    throw [];
  } catch ([ x = unresolvableReference ]) {}
});