Struct VarPath 

pub struct VarPath {
    pub segments: Vec<VarSegment>,
}

Variable reference path: ${VAR}, ${VAR[0]}, ${r[key]}, ${a[b][c]}.

The first segment is always the root variable name (Field); the rest are bracket subscripts. $? resolves to the previous command’s exit code as an int (bare only — ${?.field} is rejected). Access is brackets-only: a dotted ${VAR.field} resolves to a loud error suggesting ${VAR[field]}.

Fields

segments: Vec<VarSegment>

Implementations

impl VarPath

pub fn simple(name: impl Into<String>) -> Self

Create a simple variable reference with just a name.

The name is NFC-normalized. café typed as e + U+0301 and café typed as U+00E9 render identically, so they name one variable; without this, binding through one spelling and reading through the other resolves empty and says nothing. Subscript keys are NOT normalized — a key is data the caller chose, and its bytes are its own.

Trait Implementations

impl Clone for VarPath

fn clone(&self) -> VarPath

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VarPath

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

Formats the value using the given formatter.

impl PartialEq for VarPath

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for VarPath