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feat(typescript-plugins): use babel to transpile
.ts plugins
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| import { GeneratorOptions } from '@babel/generator'; | ||
| import * as recast from 'recast'; | ||
|
|
||
| const DEFAULT_OPTIONS = { | ||
| sourceType: 'module', | ||
| allowImportExportEverywhere: true, | ||
| allowReturnOutsideFunction: true, | ||
| allowSuperOutsideMethod: true, | ||
| plugins: [ | ||
| 'flow', | ||
| 'jsx', | ||
| 'asyncGenerators', | ||
| 'classProperties', | ||
| 'doExpressions', | ||
| 'exportExtensions', | ||
| 'functionBind', | ||
| 'functionSent', | ||
| 'objectRestSpread', | ||
| 'dynamicImport', | ||
| 'decorators' | ||
| ] | ||
| }; | ||
|
|
||
| type ParseOptions = object; | ||
| type AST = object; | ||
|
|
||
| export default { | ||
| parserOverride( | ||
| code: string, | ||
| options: ParseOptions, | ||
| parse: (code: string, options: ParseOptions) => AST | ||
| ): AST { | ||
| return recast.parse(code, { | ||
| parser: { | ||
| parse(code: string) { | ||
| return parse(code, DEFAULT_OPTIONS); | ||
| } | ||
| } | ||
| }); | ||
| }, | ||
|
|
||
| generatorOverride( | ||
| ast: AST, | ||
| options: GeneratorOptions, | ||
| code: string, | ||
| generate: (ast: AST, options: GeneratorOptions) => string | ||
| ): string { | ||
| return recast.print(ast); | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| import { transform } from '@babel/core'; | ||
| import { extname } from 'path'; | ||
| import { addHook } from 'pirates'; | ||
|
|
||
| let useBabelrc = false; | ||
| let revert: (() => void) | null = null; | ||
|
|
||
| export const SUPPORTED_EXTENSIONS = new Set([ | ||
| '.js', | ||
| '.jsx', | ||
| '.es', | ||
| '.es6', | ||
| '.mjs', | ||
| '.ts' | ||
| ]); | ||
|
|
||
| export function hook(code: string, filename: string): string { | ||
| let ext = extname(filename); | ||
|
|
||
| if (!SUPPORTED_EXTENSIONS.has(ext)) { | ||
| throw new Error(`cannot load file type '${ext}': ${filename}`); | ||
| } | ||
|
|
||
| let options = { | ||
| filename, | ||
| babelrc: useBabelrc, | ||
| presets: [] as Array<string>, | ||
| sourceMaps: 'inline' | ||
| }; | ||
|
|
||
| if (!useBabelrc) { | ||
| if (ext === '.ts') { | ||
| options.presets.push(require('@babel/preset-typescript').default()); | ||
| } | ||
|
|
||
| options.presets.push(require('@babel/preset-env').default()); | ||
| } | ||
|
|
||
| return transform(code, options).code as string; | ||
| } | ||
|
|
||
| export function enable(babelrc: boolean = false) { | ||
| disable(); | ||
| useBabelrc = babelrc; | ||
| revert = addHook(hook, { | ||
| exts: Array.from(SUPPORTED_EXTENSIONS), | ||
| ignoreNodeModules: true | ||
| }); | ||
| } | ||
|
|
||
| export function disable() { | ||
| if (revert) { | ||
| revert(); | ||
| revert = null; | ||
| } | ||
| } |
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