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await-expr-dyn-import.js (992B)

      1 // |reftest| module
      2 // Copyright (C) 2019 Leo Balter. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 
      5 /*---
      6 description: >
      7  Valid syntax for top level await.
      8  AwaitExpression ImportCall
      9 info: |
     10  ModuleItem:
     11    StatementListItem[~Yield, +Await, ~Return]
     12 
     13  ...
     14 
     15  UnaryExpression[Yield, Await]
     16    [+Await]AwaitExpression[?Yield]
     17 
     18  AwaitExpression[Yield]:
     19    await UnaryExpression[?Yield, +Await]
     20 
     21  ...
     22 
     23  LeftHandSideExpression[Yield, Await]:
     24    NewExpression[?Yield, ?Await]
     25    CallExpression[?Yield, ?Await]
     26 
     27  CallExpression[Yield, Await]:
     28    ImportCall[?Yield, ?Await]
     29 
     30  ImportCall[Yield, Await]:
     31    import ( AssignmentExpression[+In, ?Yield, ?Await] )
     32 esid: prod-AwaitExpression
     33 flags: [module]
     34 features: [top-level-await, dynamic-import]
     35 ---*/
     36 
     37 try {
     38  await import('foo');
     39 } catch (e) {
     40  // Ignore errors, we are just checking if the syntax is valid and
     41  // we should not worry if a module was loaded.
     42 }
     43 
     44 reportCompare(0, 0);