| // largely borrowed from https://github.com/facebook/react/blob/8b2d3783e58d1acea53428a10d2035a8399060fe/scripts/shared/evalToString.js | |
| /** | |
| * Copyright (c) Facebook, Inc. and its affiliates. | |
| * | |
| * This source code is licensed under the MIT license found in the | |
| * LICENSE file in the root directory of this source tree. | |
| */ | |
| export function evalToString(ast: any): string { | |
| switch (ast.type) { | |
| case 'StringLiteral': | |
| case 'Literal': // ESLint | |
| return ast.value; | |
| case 'BinaryExpression': // `+` | |
| if (ast.operator !== '+') { | |
| throw new Error('Unsupported binary operator ' + ast.operator); | |
| } | |
| return evalToString(ast.left) + evalToString(ast.right); | |
| default: | |
| throw new Error('Unsupported type ' + ast.type); | |
| } | |
| } | |