backyard-nodes
| Crates.io | backyard-nodes |
| lib.rs | backyard-nodes |
| version | |
| source | src |
| created_at | 2024-11-27 13:00:20.338515 |
| updated_at | 2024-12-12 08:45:43.511592 |
| description | Nodes representing PHP code AST. |
| homepage | |
| repository | https://github.com/Alzera/backyard |
| max_upload_size | |
| id | 1462990 |
| Cargo.toml error: | TOML parse error at line 18, column 1 | 18 | autolib = false | ^^^^^^^ unknown field `autolib`, expected one of `name`, `version`, `edition`, `authors`, `description`, `readme`, `license`, `repository`, `homepage`, `documentation`, `build`, `resolver`, `links`, `default-run`, `default_dash_run`, `rust-version`, `rust_dash_version`, `rust_version`, `license-file`, `license_dash_file`, `license_file`, `licenseFile`, `license_capital_file`, `forced-target`, `forced_dash_target`, `autobins`, `autotests`, `autoexamples`, `autobenches`, `publish`, `metadata`, `keywords`, `categories`, `exclude`, `include` |
| size | 0 |
Alzera Cita (Alzera)
documentation
README
backyard-nodes
Nodes representing PHP code AST, with simple builder and walker.
features
- Ast Nodes
- "builder" simplify building AST nodes
- "walker" simple walker through AST nodes
usage
builder
This builder is behind the builder feature.
use backyard_nodes::builder::{ Builder, BlueprintBuildable };
fn main() {
let arena = bumpalo::Bump::new();
let b = Builder::new();
let node = b
.Program(&[b.Assignment(b.Variable(b.Identifier("a")), "=", b.Number("21"))])
.build(&arena);
println!("{node:?}");
}
Resulting this:
Node {
node_type: Program,
wrapper: Program(ProgramNode {
children: [
Node {
node_type: Assignment,
wrapper: Assignment(AssignmentNode {
left: Node {
node_type: Variable,
wrapper: Variable(VariableNode {
name: Node {
node_type: Identifier,
wrapper: Identifier(IdentifierNode { name: "a" }),
loc: None, leadings: None, trailings: None
}
}),
loc: None, leadings: None, trailings: None
},
operator: "=",
right: Node {
node_type: Number,
wrapper: Number(NumberNode { value: "21" }),
loc: None, leadings: None, trailings: None
}
}),
loc: None, leadings: None, trailings: None
}]
}),
loc: None, leadings: None, trailings: None
}
walker
This builder is behind the walker feature.
use backyard_nodes::{ builder::{ BlueprintBuildable, Builder }, walker::Walker, NodeType };
fn main() {
let arena = bumpalo::Bump::new();
let b = Builder::new();
let node = b
.Program(&[b.Assignment(b.Variable(b.Identifier("a")), "=", b.Number("21"))])
.build(&arena);
let mut walker = Walker::new(&*node).into_iter();
assert_eq!(NodeType::Program, walker.next().unwrap().node_type);
assert_eq!(NodeType::Assignment, walker.next().unwrap().node_type);
assert_eq!(NodeType::Variable, walker.next().unwrap().node_type);
assert_eq!(NodeType::Identifier, walker.next().unwrap().node_type);
assert_eq!(NodeType::Number, walker.next().unwrap().node_type);
assert!(walker.next().is_none());
}