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

// This file was procedurally generated from the following sources:
// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
// - src/dstr-binding/default/try.template
/*---
description: Destructuring initializer with a "hole" (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).
       [...]
    7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
---*/

var ranCatch = false;

try {
  throw [,];
} catch ([x = 23]) {
  assert.sameValue(x, 23);
  // another statement
  ranCatch = true;
}

assert(ranCatch, 'executed `catch` block');