tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

coalesce-expr-ternary.js (1824B)


      1 // Copyright (C) 2019 Leo Balter. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: >
      6    ShortCircuitExpression in the Conditional Expression (? :)
      7 esid: sec-conditional-operator
      8 info: |
      9    ShortCircuitExpression :
     10        LogicalORExpression
     11        CoalesceExpression
     12 
     13    CoalesceExpression :
     14        CoalesceExpressionHead ?? BitwiseORExpression
     15 
     16    CoalesceExpressionHead :
     17        CoalesceExpression
     18        BitwiseORExpression
     19 
     20    ConditionalExpression :
     21        ShortCircuitExpression
     22        ShortCircuitExpression ? AssignmentExpression : AssignmentExpression
     23 features: [coalesce-expression]
     24 ---*/
     25 
     26 var x;
     27 
     28 x = undefined ?? true ? 0 : 42;
     29 assert.sameValue(x, 0, 'undefined ?? true ? 0 : 42');
     30 
     31 x = undefined;
     32 x = null ?? true ? 0 : 42;
     33 assert.sameValue(x, 0, 'null ?? true ? 0 : 42');
     34 
     35 x = undefined;
     36 x = undefined ?? false ? 0 : 42;
     37 assert.sameValue(x, 42, 'undefined ?? false ? 0 : 42');
     38 
     39 x = undefined;
     40 x = null ?? false ? 0 : 42;
     41 assert.sameValue(x, 42, 'null ?? false ? 0 : 42');
     42 
     43 x = undefined;
     44 x = false ?? true ? 0 : 42;
     45 assert.sameValue(x, 42, 'false ?? true ? 0 : 42');
     46 
     47 x = undefined;
     48 x = 0 ?? true ? 0 : 42;
     49 assert.sameValue(x, 42, '0 ?? true ? 0 : 42');
     50 
     51 x = undefined;
     52 x = 1 ?? false ? 0 : 42;
     53 assert.sameValue(x, 0, '1 ?? false ? 0 : 42');
     54 
     55 x = undefined;
     56 x = true ?? false ? 0 : 42;
     57 assert.sameValue(x, 0, 'true ?? false ? 0 : 42');
     58 
     59 x = undefined;
     60 x = true ?? true ? 0 : 42;
     61 assert.sameValue(x, 0, 'true ?? true ? 0 : 42');
     62 
     63 x = undefined;
     64 x = '' ?? true ? 0 : 42;
     65 assert.sameValue(x, 42, '"" ?? true ? 0 : 42');
     66 
     67 x = undefined;
     68 x = Symbol() ?? false ? 0 : 42;
     69 assert.sameValue(x, 0, 'Symbol() ?? false ? 0 : 42');
     70 
     71 x = undefined;
     72 x = {} ?? false ? 0 : 42;
     73 assert.sameValue(x, 0, 'object ?? false ? 0 : 42');
     74 
     75 reportCompare(0, 0);