Trait Queryable

pub trait Queryable
where
    Self: Sized,
{
    // Required methods
    fn query_kind(&self) -> Option<QueryKind>;
    fn query_dict(&self, path: &str) -> Result<Self, Error>;
    fn query_array(&self, idx: usize) -> Result<Self, Error>;

    // Provided method
    fn query<T>(&self, path: &str) -> Result<Self, Error>
       where T: Tokenizer { ... }
}

Queryable trait.

The main trait that need to be implemented by data structure. This trait assume that Self are sum types or linear? type.

Required Methods

fn query_kind(&self) -> Option<QueryKind>

Identify Self as either one of QueryKind value.

Since traversal only happens in data structure like dictionary type and array type, other that mostly are literal (leaf).

fn query_dict(&self, path: &str) -> Result<Self, Error>

Querying based on key str on Self.

This method need to be implemented in case Self supports querying by path/key &str.

fn query_array(&self, idx: usize) -> Result<Self, Error>

Querying based on index on Self.

This method need to be implemented in case of Self supports querying by index usize.

Provided Methods

fn query<T>(&self, path: &str) -> Result<Self, Error>

where T: Tokenizer,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors