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# `@nomicfoundation/solidity-analyzer`
`@nomicfoundation/solidity-analyzer` is an N-API library built in Rust, which exposes a single function, which takes the contents of a Solidity source file and returns its imports and version pragmas.
## Installation
```bash
npm install @nomicfoundation/solidity-analyzer
```
## API
```ts
export interface AnalysisResult {
versionPragmas: Array<string>;
imports: Array<string>;
}
export function analyze(input: string): AnalysisResult;
```
## Example
```ts
analyze(`
pragma solidity ^0.8.0;
import "./file.sol";
`);
// { versionPragmas: [ '^0.8.0' ], imports: [ './file.sol' ] }
```
## Goals
This library has two different goals:
1. Being fast
2. Being error-tolerant
Both are achieved by not parsing the Solidity source but just tokenizing it instead. This allows us to create a simple state machine that only recognizes imports and pragmas, ignoring everything else, and recovering from malformed tokens or expressions.
## Browser support
This library doesn't work in a browser.
## Testing
This project has some JavaScript unit tests in `__test__`, and it's also tested using the entire [`smart-contract-sanctuary`](https://github.com/tintinweb/smart-contract-sanctuary).
You can find the scripts to test with the sanctuary in `test-with-sanctuary/`.
## Regenerating `index.js` and `index.d.ts`
These files have to be committed because of our current Github Actions, yet, they are autogenerated.
You can run `cargo clean`, `yarn clean`, and `yarn build` to recreate them.