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Code Issues Projects Releases Wiki Activity

Drop babel 6 stuff from babel-bridge

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Reviewed By: rubennorte

Differential Revision: D7788530

fbshipit-source-id: ba9d5b120989ff86148a2a9ddd1ef84996c5cc02
This commit is contained in:
Peter van der Zee 2018-04-27 09:23:13 -07:00 committed by Facebook Github Bot
parent e0f411b8f2
commit d82afc42d8
2 changed files with 57 additions and 138 deletions
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135
packages/metro/src/JSTransformer/worker/__tests__/worker-test.js
View File

@ -23,7 +23,6 @@ jest
const path = require('path'); const path = require('path');
const transformCode = require('..').transform; const transformCode = require('..').transform;
const {InvalidRequireCallError} = require('..'); const {InvalidRequireCallError} = require('..');
const {version: BABEL_VERSION} = require('../../../babel-bridge');
describe('code transformation worker:', () => { describe('code transformation worker:', () => {
it('transforms a simple script', async () => { it('transforms a simple script', async () => {
@ -84,98 +83,52 @@ describe('code transformation worker:', () => {
expect(result.dependencies).toEqual([]); expect(result.dependencies).toEqual([]);
}); });
if (BABEL_VERSION === 7) { it(`transforms a module with dependencies`, async () => {
it(`transforms a module with dependencies (v${BABEL_VERSION})`, async () => { const {result} = await transformCode(
const {result} = await transformCode( 'arbitrary/file.js',
'arbitrary/file.js', `local/file.js`,
`local/file.js`, [
[ "'use strict';",
"'use strict';", 'require("./a");',
'require("./a");', 'arbitrary(code);',
'arbitrary(code);', 'const b = require("b");',
'const b = require("b");', 'import c from "./c";',
'import c from "./c";', ].join('\n'),
].join('\n'), path.join(__dirname, '../../../transformer.js'),
path.join(__dirname, '../../../transformer.js'), false,
false, {
{ dev: true,
dev: true, transform: {},
transform: {}, },
}, [],
[], '',
'', 'minifyModulePath',
'minifyModulePath', 'asyncRequire',
'asyncRequire', 'reject',
'reject', );
);
expect(BABEL_VERSION).toBe(7); expect(result.code).toBe(
expect(result.code).toBe( [
[ '__d(function (global, _$$_REQUIRE, module, exports, _dependencyMap) {',
'__d(function (global, _$$_REQUIRE, module, exports, _dependencyMap) {', " 'use strict';",
" 'use strict';",
'',
' var _c = babelHelpers.interopRequireDefault(_$$_REQUIRE(_dependencyMap[0], "./c"));',
'',
' _$$_REQUIRE(_dependencyMap[1], "./a");',
'',
' arbitrary(code);',
'',
' var b = _$$_REQUIRE(_dependencyMap[2], "b");',
'});',
].join('\n'),
);
expect(result.map).toHaveLength(14);
expect(result.dependencies).toEqual([
{isAsync: false, name: './c'},
{isAsync: false, name: './a'},
{isAsync: false, name: 'b'},
]);
});
} else {
it(`transforms a module with dependencies (v${BABEL_VERSION})`, async () => {
const {result} = await transformCode(
'arbitrary/file.js',
`local/file.js`,
[
'require("./a");',
'arbitrary(code);',
'const b = require("b");',
'import c from "./c";',
].join('\n'),
path.join(__dirname, '../../../transformer.js'),
false,
{
dev: true,
transform: {},
},
[],
'', '',
'minifyModulePath', ' var _c = babelHelpers.interopRequireDefault(_$$_REQUIRE(_dependencyMap[0], "./c"));',
'asyncRequire', '',
'reject', ' _$$_REQUIRE(_dependencyMap[1], "./a");',
); '',
' arbitrary(code);',
expect(BABEL_VERSION).toBe(6); '',
expect(result.code).toBe( ' var b = _$$_REQUIRE(_dependencyMap[2], "b");',
[ '});',
'__d(function (global, _$$_REQUIRE, module, exports, _dependencyMap) {', ].join('\n'),
' var _c = _$$_REQUIRE(_dependencyMap[0], "./c");', );
'', expect(result.map).toHaveLength(14);
' var _c2 = babelHelpers.interopRequireDefault(_c);', expect(result.dependencies).toEqual([
'', {isAsync: false, name: './c'},
' _$$_REQUIRE(_dependencyMap[1], "./a");', {isAsync: false, name: './a'},
'', {isAsync: false, name: 'b'},
' arbitrary(code);', ]);
'', });
' var b = _$$_REQUIRE(_dependencyMap[2], "b");',
'});',
].join('\n'),
);
expect(result.map).toHaveLength(13);
expect(result.dependencies).toEqual(['./c', './a', 'b']);
});
}
it('reports filename when encountering unsupported dynamic dependency', async () => { it('reports filename when encountering unsupported dynamic dependency', async () => {
try { try {

60
packages/metro/src/babel-bridge.js
View File

@ -13,27 +13,6 @@
// This is a temporary migration bridge to switch between babel 6 and 7 // This is a temporary migration bridge to switch between babel 6 and 7
const IS_BABEL7 = true; // process.env.BABEL_VERSION === '7';
// ## Babel 6 stuff
const babelCore6 = require('babel-core');
const babelGenerate6 = require('babel-generator').default;
const babelTemplate6 = require('babel-template');
const babelTraverse6 = require('babel-core').traverse;
const babelTypes6 = require('babel-core').types;
const babylon6 = require('babylon');
const externalHelpersPlugin6 = require('babel-plugin-external-helpers');
const inlineRequiresPlugin6 = require('babel-preset-fbjs/plugins/inline-requires');
const makeHMRConfig6 = require('babel-preset-react-native/configs/hmr');
const resolvePlugins6 = require('babel-preset-react-native/lib/resolvePlugins');
// register has side effects so don't include by default (only used in a test)
const getBabelRegisterConfig6 = () => require('metro-babel-register').config;
// load given preset as a babel6 preset
// ## Babel 7 stuff
const babelCore7 = require('@babel/core'); const babelCore7 = require('@babel/core');
const babelGenerate7 = require('@babel/generator').default; const babelGenerate7 = require('@babel/generator').default;
const babelTemplate7 = require('@babel/template').default; const babelTemplate7 = require('@babel/template').default;
@ -74,34 +53,21 @@ function resolvePlugins7(plugins: Array<any>) {
} }
module.exports = { module.exports = {
version: IS_BABEL7 ? 7 : 6,
// need to abstract the transform* funcs here since their name changed // need to abstract the transform* funcs here since their name changed
transformSync: IS_BABEL7 ? babelCore7.transformSync : babelCore6.transform, transformSync: babelCore7.transformSync,
transformFileSync: IS_BABEL7 transformFileSync: babelCore7.transformFileSync,
? babelCore7.transformFileSync transformFromAstSync: babelCore7.transformFromAstSync,
: babelCore6.transformFile, babelGenerate: babelGenerate7,
transformFromAstSync: IS_BABEL7 babelTemplate: babelTemplate7,
? babelCore7.transformFromAstSync babelTraverse: babelTraverse7,
: babelCore6.transformFromAst, babelTypes: babelTypes7,
getBabelRegisterConfig: getBabelRegisterConfig7,
babylon: babylon7,
babelGenerate: IS_BABEL7 ? babelGenerate7 : babelGenerate6, externalHelpersPlugin: externalHelpersPlugin7,
babelTemplate: IS_BABEL7 ? babelTemplate7 : babelTemplate6, inlineRequiresPlugin: inlineRequiresPlugin7,
babelTraverse: IS_BABEL7 ? babelTraverse7 : babelTraverse6, makeHMRConfig: makeHMRConfig7,
babelTypes: IS_BABEL7 ? babelTypes7 : babelTypes6, resolvePlugins: resolvePlugins7,
getBabelRegisterConfig: IS_BABEL7
? getBabelRegisterConfig7
: getBabelRegisterConfig6,
babylon: IS_BABEL7 ? babylon7 : babylon6,
externalHelpersPlugin: IS_BABEL7
? externalHelpersPlugin7
: externalHelpersPlugin6,
inlineRequiresPlugin: IS_BABEL7
? inlineRequiresPlugin7
: inlineRequiresPlugin6,
makeHMRConfig: IS_BABEL7 ? makeHMRConfig7 : makeHMRConfig6,
resolvePlugins: IS_BABEL7 ? resolvePlugins7 : resolvePlugins6,
getPreset, getPreset,
}; };