Crate treesitter_types_rust

Expand description

Strongly-typed AST types for Rust, auto-generated from tree-sitter-rust’s node-types.json.

This crate is generated by treesitter-types and is automatically kept up to date when a new version of the grammar crate is released.

These types have been tested by parsing the Rust compiler source code.

See the Tree-sitter project for more information about the underlying parser framework.

§Example

use treesitter_types_rust::*;

// A minimal Rust hello-world program.
let src = b"\
fn main() {
    println!(\"Hello, World!\");
}
";

// Parse the source with tree-sitter and convert into typed AST.
let mut parser = tree_sitter::Parser::new();
parser.set_language(&tree_sitter_rust::LANGUAGE.into()).unwrap();
let tree = parser.parse(src, None).unwrap();
let source_file = SourceFile::from_node(tree.root_node(), src).unwrap();

// The source file has one top-level child: a function definition.
assert_eq!(source_file.children.len(), 1);

// Unwrap the function item through the declaration statement wrapper.
let SourceFileChildren::DeclarationStatement(decl) = &source_file.children[0] else {
    panic!("expected a declaration statement");
};
let DeclarationStatement::FunctionItem(func) = decl.as_ref() else {
    panic!("expected a function item");
};

// Check function metadata.
let FunctionItemName::Identifier(name) = &func.name else {
    panic!("expected an identifier");
};
assert_eq!(name.text(), "main");
assert!(func.parameters.children.is_empty()); // no parameters
assert!(func.return_type.is_none());           // no return type

// The body contains one statement: the `println!` macro invocation.
assert_eq!(func.body.children.len(), 1);

Re-exports§

pub use tree_sitter_rust;
pub use treesitter_types::tree_sitter;

Structs§

Enums§

Traits§

FromNode: Every generated struct and enum implements this.
LeafNode: Implemented by every generated leaf type (identifiers, literals, etc.)
Spanned: Implemented by every generated type that has a source location.

Crate treesitter_types_rust

Crate treesitter_types_rust Copy item path

§Example

Re-exports§

Structs§

Enums§

Traits§

Crate treesitter_types_rust