source: imaps-frontend/node_modules/jsx-ast-utils/src/values/expressions/BinaryExpression.js

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Last change on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago

Update repo after prototype presentation

  • Property mode set to 100644
File size: 2.0 KB
Line 
1/**
2 * Extractor function for a BinaryExpression type value node.
3 * A binary expression has a left and right side separated by an operator
4 * such as `a + b`.
5 *
6 * @param - value - AST Value object with type `BinaryExpression`
7 * @returns - The extracted value converted to correct type.
8 */
9export default function extractValueFromBinaryExpression(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 switch (operator) {
17 case '==':
18 return leftVal == rightVal; // eslint-disable-line
19 case '!=':
20 return leftVal != rightVal; // eslint-disable-line
21 case '===':
22 return leftVal === rightVal;
23 case '!==':
24 return leftVal !== rightVal;
25 case '<':
26 return leftVal < rightVal;
27 case '<=':
28 return leftVal <= rightVal;
29 case '>':
30 return leftVal > rightVal;
31 case '>=':
32 return leftVal >= rightVal;
33 case '<<':
34 return leftVal << rightVal; // eslint-disable-line no-bitwise
35 case '>>':
36 return leftVal >> rightVal; // eslint-disable-line no-bitwise
37 case '>>>':
38 return leftVal >>> rightVal; // eslint-disable-line no-bitwise
39 case '+':
40 return leftVal + rightVal;
41 case '-':
42 return leftVal - rightVal;
43 case '*':
44 return leftVal * rightVal;
45 case '/':
46 return leftVal / rightVal;
47 case '%':
48 return leftVal % rightVal;
49 case '|':
50 return leftVal | rightVal; // eslint-disable-line no-bitwise
51 case '^':
52 return leftVal ^ rightVal; // eslint-disable-line no-bitwise
53 case '&':
54 return leftVal & rightVal; // eslint-disable-line no-bitwise
55 case 'in':
56 try {
57 return leftVal in rightVal;
58 } catch (err) {
59 return false;
60 }
61 case 'instanceof':
62 if (typeof rightVal !== 'function') {
63 return false;
64 }
65 return leftVal instanceof rightVal;
66 default:
67 return undefined;
68 }
69}
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