Enum TraversalOperator

pub enum TraversalOperator {
    AttrSplat(Decorated<Splat>),
    FullSplat(Decorated<Splat>),
    GetAttr(Decorated<Ident>),
    Index(Expression),
    LegacyIndex(Decorated<u64>),
}

The expression traversal operators that are supported by HCL.

Variants

AttrSplat(Decorated<Splat>)

The attribute-only splat operator supports only attribute lookups into the elements from a list, but supports an arbitrary number of them.

FullSplat(Decorated<Splat>)

The full splat operator additionally supports indexing into the elements from a list, and allows any combination of attribute access and index operations.

GetAttr(Decorated<Ident>)

The attribute access operator returns the value of a single attribute in an object value.

Index(Expression)

The index operator returns the value of a single element of a collection value based on the result of the expression.

LegacyIndex(Decorated<u64>)

The legacy index operator returns the value of a single element of a collection value. Exists only for compatibility with the precursor language HIL. Use the Index variant instead.

Trait Implementations

impl Clone for TraversalOperator

fn clone(&self) -> TraversalOperator

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TraversalOperator

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

Formats the value using the given formatter.

impl Decorate for TraversalOperator

fn decor(&self) -> &Decor

Returns a reference to the object’s Decor.

fn decor_mut(&mut self) -> &mut Decor

Returns a mutable reference to the object’s Decor.

fn decorate(&mut self, decor: impl Into<Decor>)

Decorate the object with decor in-place.

fn decorated(self, decor: impl Into<Decor>) -> Self

where Self: Sized,

Decorate the object with decor and return the modified value.

impl PartialEq for TraversalOperator

fn eq(&self, other: &TraversalOperator) -> 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 Span for TraversalOperator

fn span(&self) -> Option<Range<usize>>

Obtains the span information. This only returns Some if the value was emitted by the parser.

impl Eq for TraversalOperator

impl StructuralPartialEq for TraversalOperator