| |
| import { transform } from 'next/dist/build/swc' |
| import path from 'path' |
| import fsp from 'fs/promises' |
|
|
| const swc = async (code) => { |
| let output = await transform(code) |
| return output.code |
| } |
|
|
| const trim = (s) => s.join('\n').trim().replace(/^\s+/gm, '') |
|
|
| describe('next/swc', () => { |
| describe('hook_optimizer', () => { |
| it('should leave alone array destructuring of hooks', async () => { |
| const output = await swc( |
| trim` |
| import { useState } from 'react'; |
| const [count, setCount] = useState(0); |
| ` |
| ) |
|
|
| expect(output).toMatchInlineSnapshot(` |
| "function _array_like_to_array(arr, len) { |
| if (len == null || len > arr.length) len = arr.length; |
| for(var i = 0, arr2 = new Array(len); i < len; i++)arr2[i] = arr[i]; |
| return arr2; |
| } |
| function _array_with_holes(arr) { |
| if (Array.isArray(arr)) return arr; |
| } |
| function _iterable_to_array_limit(arr, i) { |
| var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"]; |
| if (_i == null) return; |
| var _arr = []; |
| var _n = true; |
| var _d = false; |
| var _s, _e; |
| try { |
| for(_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true){ |
| _arr.push(_s.value); |
| if (i && _arr.length === i) break; |
| } |
| } catch (err) { |
| _d = true; |
| _e = err; |
| } finally{ |
| try { |
| if (!_n && _i["return"] != null) _i["return"](); |
| } finally{ |
| if (_d) throw _e; |
| } |
| } |
| return _arr; |
| } |
| function _non_iterable_rest() { |
| throw new TypeError("Invalid attempt to destructure non-iterable instance.\\\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); |
| } |
| function _sliced_to_array(arr, i) { |
| return _array_with_holes(arr) || _iterable_to_array_limit(arr, i) || _unsupported_iterable_to_array(arr, i) || _non_iterable_rest(); |
| } |
| function _unsupported_iterable_to_array(o, minLen) { |
| if (!o) return; |
| if (typeof o === "string") return _array_like_to_array(o, minLen); |
| var n = Object.prototype.toString.call(o).slice(8, -1); |
| if (n === "Object" && o.constructor) n = o.constructor.name; |
| if (n === "Map" || n === "Set") return Array.from(n); |
| if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _array_like_to_array(o, minLen); |
| } |
| import { useState } from 'react'; |
| var _useState = _sliced_to_array(useState(0), 2), count = _useState[0], setCount = _useState[1]; |
| " |
| `) |
| }) |
|
|
| it('should leave alone array spread of hooks', async () => { |
| const output = await swc( |
| trim` |
| import { useState } from 'react'; |
| const [...copy] = useState(0); |
| ` |
| ) |
|
|
| expect(output).toMatchInlineSnapshot(` |
| "function _array_like_to_array(arr, len) { |
| if (len == null || len > arr.length) len = arr.length; |
| for(var i = 0, arr2 = new Array(len); i < len; i++)arr2[i] = arr[i]; |
| return arr2; |
| } |
| function _array_with_holes(arr) { |
| if (Array.isArray(arr)) return arr; |
| } |
| function _iterable_to_array(iter) { |
| if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); |
| } |
| function _non_iterable_rest() { |
| throw new TypeError("Invalid attempt to destructure non-iterable instance.\\\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); |
| } |
| function _to_array(arr) { |
| return _array_with_holes(arr) || _iterable_to_array(arr) || _unsupported_iterable_to_array(arr) || _non_iterable_rest(); |
| } |
| function _unsupported_iterable_to_array(o, minLen) { |
| if (!o) return; |
| if (typeof o === "string") return _array_like_to_array(o, minLen); |
| var n = Object.prototype.toString.call(o).slice(8, -1); |
| if (n === "Object" && o.constructor) n = o.constructor.name; |
| if (n === "Map" || n === "Set") return Array.from(n); |
| if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _array_like_to_array(o, minLen); |
| } |
| import { useState } from 'react'; |
| var _useState = _to_array(useState(0)), copy = _useState.slice(0); |
| " |
| `) |
| }) |
| }) |
|
|
| describe('private env replacement', () => { |
| it('__NEXT_REQUIRED_NODE_VERSION_RANGE is replaced', async () => { |
| const pkgDir = path.dirname(require.resolve('next/package.json')) |
| const nextEntryContent = await fsp.readFile( |
| path.join(pkgDir, 'dist/bin/next'), |
| 'utf8' |
| ) |
| expect(nextEntryContent).not.toContain( |
| '__NEXT_REQUIRED_NODE_VERSION_RANGE' |
| ) |
| expect(nextEntryContent).toMatch( |
| /For Next.js, Node.js version "\$\{"\^\d+\.\d+\.\d* \|\| \^\d+\.\d+\.\d* \|\| >= \d+\.\d+\.\d*"\}" is required./ |
| ) |
| }) |
| }) |
| }) |
|
|
