Crate slang_solidity 

Slang is intended to be a modular Solidity compiler, specifically targeting code analysis and developer tooling. This means servicing tools with domain-specific APIs and, in general, facilitating working with and analyzing the Solidity source code. If you’re in the editor writing Solidity or performing linting or additional validation, there’s a chance that you are, or could be, running Slang!

Parsing Solidity Source Code

use slang_solidity::parser::Parser;
use slang_solidity::utils::LanguageFacts;

let source = "contract Foo {}";
let parser = Parser::create(LanguageFacts::LATEST_VERSION).unwrap();
let parse_output = parser.parse_file_contents(&source);

Using the Cursor: Listing Contract Names

Cursors are the simplest way to navigate a CST. The below example shows how you might use cursors to list all of the contract names in a source file.

// Step 1 (not shown): get a parse tree, for instance with the code above.
// Step 2: Get a cursor
let mut cursor = parse_output.create_tree_cursor();

// Step 3: Use the cursor to navigate to all `ContractDefinition`'s and print out their names
while cursor.go_to_next_nonterminal_with_kind(NonterminalKind::ContractDefinition) {
    println!("Contract: {}", cursor.node().unparse());
}

Modules

bindings

This module contains APIs used to resolve symbol bindings in source code. These APIs can be used for code analysis features such as “Go to Definition” or “Find References”.

compilation

The compilation module provides some basic utilities that users can use to combine multiple source files into a single compilation unit. The compilation unit can then be used to get a complete BindingGraph that can resolve references and defintions across all the added files.

cst

This module defines the types that represent a concrete syntax tree (CST), such as Node and Edge. It also defines utilities that are used for navigating and searching a CST, Cursor and Query.

parser

Source code parsing utilities. See parser::Parser for more info on parsing source code.

utils

Various Slang language utilities.