Enum StringTestOp 

#[non_exhaustive]
pub enum StringTestOp {
    IsEmpty,
    IsNonEmpty,
    IsList,
    IsRecord,
}

String test operators for [[ ]].

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

IsEmpty

-z - string is empty

IsNonEmpty

-n - string is non-empty

IsList

-list - value is a native list (Value::Json(Array)). Shape guard for an API that sometimes returns an object where a list is expected — see docs/LANGUAGE.md, “Shape guards”. Evaluates the operand’s value, like -z/-n, not a path stat like -f/-d. A defined-but-wrong-shaped value is false; a bare unset $var is an undefined-variable error (like -z/-n), so a typo isn’t silently false.

IsRecord

-record - value is a native record (Value::Json(Object)). See StringTestOp::IsList.

Implementations

impl StringTestOp

pub fn matches_shape(self, value: &Value) -> bool

Does value match this shape-guard operator? Only meaningful for StringTestOp::IsList / StringTestOp::IsRecord — returns false for IsEmpty/IsNonEmpty (callers evaluate those separately via string-empty checks, not this predicate).

Shared by both the sync (interpreter/eval.rs) and async (kernel.rs::eval_test_async) [[ ]] evaluators so the two paths can’t diverge on the shape rule.

Trait Implementations

impl Clone for StringTestOp

fn clone(&self) -> StringTestOp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StringTestOp

impl Debug for StringTestOp

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

Formats the value using the given formatter.

impl Display for StringTestOp

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

Formats the value using the given formatter.

impl Eq for StringTestOp

impl PartialEq for StringTestOp

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StringTestOp