Crate attr

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§attr - static paths for Rust

Identity: The Identity is the end of a path and provides the point where input equals output and we start returning. It’s necessary for recursive path traversal, but generally not to be used in user code.
InsecurePath: A path path describing how to retrieve a value at a point, and then recursive down the rest of the path.
MapPath: A path that describes a mapping operation, which later application of a subpath.
Path: A plain path describing how to retrieve a value at a point, and then recursive down the rest of the path.

Attr: Direct access to an attribute of a type.
IndexableAttr: Access to a part of the attribute by index
InsecureAttr: Direct, possibly failing access to an attribute of a type.
InsecureIndexableAttr: Access to a part of the attribute by index, where access can fail
InsecureIterableAttr: Insecure variant of iteration over an attribute
IterableAttr: Iteration over an attribute
Traverse: Recursive path traversal

retrieve: retrieve is the starting point of a path that always returns a value.
retrieve_insecure: retrieve_insecure is the starting point of a path that is not always present. For that reason, it returns a Result indicating the success of the path operation.