Struct ContextStack 

pub struct ContextStack { /* private fields */ }

Context stack for nested evaluations

Implementations

impl ContextStack

pub fn new(root: Arc<Value>) -> Self

Create a new context stack with Arc root data

pub fn push(&mut self, data: Value)

Pushes a new context frame for nested evaluation (data only).

pub fn push_with_index(&mut self, data: Value, index: usize)

Pushes a frame with just an index (optimized path for array iteration).

pub fn push_with_key_index(&mut self, data: Value, index: usize, key: String)

Pushes a frame with both index and key (optimized path for object iteration).

pub fn replace_top_key_data(&mut self, data: Value, index: usize, key: String)

Replaces data, index, and key in the top frame in-place (for object iteration).

pub fn take_top_data(&mut self) -> Value

Takes the data from the top frame, replacing it with Null.

pub fn replace_top_data(&mut self, data: Value, index: usize)

Replaces the data and index in the top frame in-place.

pub fn push_reduce(&mut self, current: Value, accumulator: Value)

Pushes a reduce frame with “current” and “accumulator” values.

pub fn replace_reduce_data(&mut self, current: Value, accumulator: Value)

Replaces current and accumulator values in the top reduce frame in-place.

pub fn pop(&mut self) -> Option<ContextFrame>

Pops the current context frame from the stack.

pub fn get_at_level(&self, level: isize) -> Option<ContextFrameRef<'_>>

Accesses data at a context level relative to current.

Arguments

• level - The number of levels to traverse up the context stack
  • 0: returns the current context
  • N (positive or negative): goes up N levels from current

pub fn current(&self) -> ContextFrameRef<'_>

Get the current context frame (top of stack)

pub fn root(&self) -> ContextFrameRef<'_>

Get the root context frame

pub fn depth(&self) -> usize

Get the current depth (number of frames)