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Co-authored-by: Braydon Hall <40751395+nobrayner@users.noreply.github.com> Co-authored-by: Jacob M-G Evans <27247160+JacobMGEvans@users.noreply.github.com> Co-authored-by: Juhana Jauhiainen <juhana.jauhiainen@gmail.com> Co-authored-by: Peter Hozak <peter.hozak@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| import preval from './dist/macro' | ||
| export default preval |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| import preval from '../../macro' | ||
| export default preval |
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| // this is just here because the import needs to end in "macro" with no extension. | ||
| // and if we don't do this, then babel-plugin-macros cannot find the macro.ts file (it's looking for a .js file). | ||
| module.exports = require('../../macro.ts') |
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| import p from 'path' | ||
| import requireFromStringOfCode from 'require-from-string' | ||
| import type babelCore from '@babel/core' | ||
| import objectToAST from './object-to-ast' | ||
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| type PrevalModuleExport = unknown | ((...args: Array<any>) => unknown) | ||
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| type CompiledESModule = { | ||
| __esModule: boolean | ||
| default: PrevalModuleExport | ||
| } | ||
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| function isCompiledESModule(module: unknown): module is CompiledESModule { | ||
| return typeof module === 'object' && module !== null && '__esModule' in module | ||
| } | ||
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| // istanbul ignore next because I don't know how to reproduce a situation | ||
| // where the filename doesn't exist, but TypeScript gets mad when I don't handle that case. | ||
| const getFilename = (fileOpts: babelCore.TransformOptions): string => | ||
| fileOpts.filename ?? '"unknown"' | ||
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| type RequireFromStringOptions = { | ||
| string: string | Buffer | ||
| fileOpts: babelCore.TransformOptions | ||
| args?: any[] | ||
| } | ||
| export function requireFromString({ | ||
| string: stringToPreval, | ||
| fileOpts, | ||
| args = [], | ||
| }: RequireFromStringOptions) { | ||
| const filename = getFilename(fileOpts) | ||
| let module = requireFromStringOfCode(String(stringToPreval), filename) as | ||
| | CompiledESModule | ||
| | PrevalModuleExport | ||
| | unknown | ||
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| if (isCompiledESModule(module)) { | ||
| // Allow for es modules (default export) | ||
| module = module.default | ||
| } | ||
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| if (typeof module === 'function') { | ||
| module = module(...args) | ||
| } else if (args.length) { | ||
| throw new Error( | ||
| `\`preval.require\`-ed module (${p.relative( | ||
| process.cwd(), | ||
| filename, | ||
| )}) cannot accept arguments because it does not export a function. You passed the arguments: ${args.join( | ||
| ', ', | ||
| )}`, | ||
| ) | ||
| } | ||
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| return module | ||
| } | ||
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| type GetReplacementOptions = { | ||
| string: string | Buffer | ||
| fileOpts: babelCore.TransformOptions | ||
| args?: any[] | ||
| babel: typeof babelCore | ||
| } | ||
|
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| export function getReplacement({ | ||
| string, | ||
| fileOpts, | ||
| args, | ||
| babel, | ||
| }: GetReplacementOptions) { | ||
| const module = requireFromString({string, fileOpts, args}) | ||
| return objectToAST(module, {babel, fileOptions: fileOpts}) | ||
| } | ||
|
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| /* | ||
| eslint | ||
| @typescript-eslint/no-explicit-any: "off", | ||
| */ |
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