# @volar/source-map

Provides functionality related to source maps.

## API

This package exports a `SourceMap` class with the following methods:

- `getSourceOffset(generatedOffset: number)`: Returns the source offset for a given generated offset.

- `getGeneratedOffset(sourceOffset: number)`: Returns the generated offset for a given source offset.

- `getSourceOffsets(generatedOffset: number)`: Returns all source offsets for a given generated offset.

- `getGeneratedOffsets(sourceOffset: number)`: Returns all generated offsets for a given source offset.

## Data Structures

### `Mapping`

The `Mapping` is a tuple that represents a mapping in the source map. It consists of the following elements:

- `source`: A string representing the source file. This can be `undefined`.
- `sourceOffsets`: Offsets in the source code.
- `generatedOffsets`: Offsets in the generated code.
- `data`: The data associated with this mapping. The type of this data is generic and can be specified when creating a `SourceMap` instance.

Here is an example of a `Mapping`:

```ts
let mapping: Mapping<MyDataType> = {
    source: '.../sourceFile.ts',
    sourceOffsets: [10],
    generatedOffsets: [30],
	lengths: [10],
    data: myData,
};
```

In this example, `myData` is of type `MyDataType`, which is the type specified for the SourceMap instance.

Remember to replace `MyDataType` and `myData` with actual types and data that are relevant to your project.

## License

This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for more details.