main
|
Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
|
Update repo after prototype presentation
|
-
Property mode
set to
100644
|
|
File size:
871 bytes
|
| Line | |
|---|
| 1 | /**
|
|---|
| 2 | * Extractor function for a LogicalExpression type value node.
|
|---|
| 3 | * A logical expression is `a && b` or `a || b`, so we evaluate both sides
|
|---|
| 4 | * and return the extracted value of the expression.
|
|---|
| 5 | *
|
|---|
| 6 | * @param - value - AST Value object with type `LogicalExpression`
|
|---|
| 7 | * @returns - The extracted value converted to correct type.
|
|---|
| 8 | */
|
|---|
| 9 | export default function extractValueFromLogicalExpression(value) {
|
|---|
| 10 | // eslint-disable-next-line global-require
|
|---|
| 11 | const getValue = require('.').default;
|
|---|
| 12 | const { operator, left, right } = value;
|
|---|
| 13 | const leftVal = getValue(left);
|
|---|
| 14 | const rightVal = getValue(right);
|
|---|
| 15 |
|
|---|
| 16 | if (operator === '&&') {
|
|---|
| 17 | return leftVal && rightVal;
|
|---|
| 18 | }
|
|---|
| 19 | if (operator === '??') {
|
|---|
| 20 | // return leftVal ?? rightVal; // TODO: update to babel 7
|
|---|
| 21 | return (leftVal === null || typeof leftVal === 'undefined') ? rightVal : leftVal;
|
|---|
| 22 | }
|
|---|
| 23 | return leftVal || rightVal;
|
|---|
| 24 | }
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
