Struct FieldPath 

pub struct FieldPath {
    pub base_var: String,
    pub indices: Vec<usize>,
}

Represents a path to a specific field within a struct hierarchy

Examples:

• _1.0 → base_var=“_1”, indices=[0]
• _1.1.2 → base_var=“_1”, indices=[1, 2]
• _3 → base_var=“_3”, indices=[] (whole variable)

Fields

base_var: String

Base variable name (e.g., “_1”, “_3”, “_10”)

indices: Vec<usize>

Field indices from root to leaf Empty vec means the entire variable (not a specific field)

Implementations

impl FieldPath

pub fn new(base_var: String, indices: Vec<usize>) -> Self

Create a new field path

pub fn whole_var(base_var: String) -> Self

Create a field path for an entire variable (no field access)

pub fn single_field(base_var: String, index: usize) -> Self

Create a field path from a base and single field index

pub fn to_string(&self) -> String

Convert to canonical string representation Examples: “_1” , “_1.0”, “_1.1.2”

pub fn is_prefix_of(&self, other: &FieldPath) -> bool

Check if this path is a prefix of another path

Example: _1.1 is a prefix of _1.1.2 Example: _1 is a prefix of _1.0 Example: _1.2 is NOT a prefix of _1.1.2

pub fn is_whole_var(&self) -> bool

Check if this is a whole variable (no field indices)

pub fn parent(&self) -> Option<FieldPath>

Get parent field path (remove last index) Example: _1.1.2 → Some(_1.1) Example: _1.0 → Some(_1) Example: _1 → None

Trait Implementations

impl Clone for FieldPath

fn clone(&self) -> FieldPath

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FieldPath

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for FieldPath

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FieldPath

fn eq(&self, other: &FieldPath) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for FieldPath

impl StructuralPartialEq for FieldPath