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@nomicfoundation/solidity-analyzer

v0.1.2

Published

`@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.

Downloads

651,604

Readme

@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

npm install @nomicfoundation/solidity-analyzer

API

export interface AnalysisResult {
  versionPragmas: Array<string>;
  imports: Array<string>;
}

export function analyze(input: string): AnalysisResult;

Example

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.

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.