https://github.com/jridgewell/build-mapping

Build source and source maps
https://github.com/jridgewell/build-mapping

Last synced: 2 months ago
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Build source and source maps

• Host: GitHub
• URL: https://github.com/jridgewell/build-mapping
• Owner: jridgewell
• License: mit
• Created: 2024-03-02T08:15:57.000Z (10 months ago)
• Default Branch: main
• Last Pushed: 2024-03-03T07:45:39.000Z (10 months ago)
• Last Synced: 2024-04-24T07:59:59.826Z (8 months ago)
• Language: TypeScript
• Size: 180 KB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# @jridgewell/build-mapping

> Build source and source maps

Allows you to iteratively build source code and source maps from previously generated code/maps.

## Installation

```sh

npm install @jridgewell/build-mapping

```

## Usage

```typescript

import { build, unnormalizedBuild } from '@jridgewell/build-mapping';

const input = transformFileSync('input.js')

const { code, map } = build`foo ${input} bar`;

assert.equal(code, `foo [input's code here…] bar`);

assert.deepEqual(map, {

  version: 3,

  sections: [

    { offset: { line: 0, column: 4 }, map: … },

    { offset: { line: 0, column: 24 }, map: … },

  ]

});

// If you're using @jridgewell/trace-mapping's `AnyMap`, you can use a faster unnormalized builder:

const { code: sameCode, map: unnormalized } = unnormalizedBuild`foo ${input} bar`;

// This can be anything that generates { code, map }.

function transformFileSync(file: string): { code: string, map: string } {

  return babel.transformFileSync('input.js');

}

```