mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Joe Savona
80bdab7447
"Supports" default values in destructuring (AssignmentPattern) by lowering to a
ternary, even in the output. Examples:
```javascript
// Input:
const [x = 'default'] = y;
// Output:
const [t0] = y;
const x = t0 === undefined ? 'default' : t0;
```
```javascript
// Input 2
const [{x} = makeObject()] = y;
// Output 2
const [t0] = y;
const {x} = t0 === undefined ? makeObject() : t0;
```
Note that this is how Babel lowers AssignmentPattern, so it isn't too bad. This
should help avoid the need to update product code, even if the output isn't
perfectly ideal.