visit-rs 0.1.9

A generic visitor pattern library for Rust
Documentation 
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use visit_rs::*;

struct TypeNameVisitor;

impl Visitor for TypeNameVisitor {
    type Result = &'static str;
}

impl Visit<TypeNameVisitor> for String {
    fn visit(&self, _visitor: &mut TypeNameVisitor) -> &'static str {
        "String"
    }
}

impl Visit<TypeNameVisitor> for i32 {
    fn visit(&self, _visitor: &mut TypeNameVisitor) -> &'static str {
        "i32"
    }
}

impl Visit<TypeNameVisitor> for bool {
    fn visit(&self, _visitor: &mut TypeNameVisitor) -> &'static str {
        "bool"
    }
}

#[derive(VisitFields)]
struct MyStruct {
    name: String,
    age: i32,
    active: bool,
}

fn main() {
    let my_struct = MyStruct {
        name: "Alice".to_string(),
        age: 30,
        active: true,
    };

    let mut visitor = TypeNameVisitor;

    let field_types: Vec<_> = my_struct.visit_fields(&mut visitor).collect();

    println!("Field types:");
    for (i, ty) in field_types.iter().enumerate() {
        println!("  Field {}: {}", i, ty);
    }

    assert_eq!(field_types, vec!["String", "i32", "bool"]);
    println!("\nVisitor works!");
}