Struct ValueStack 

pub struct ValueStack { /* private fields */ }

Implementations

impl ValueStack

pub fn new(size: usize) -> Self

pub fn as_slice(&self) -> &[Value]

pub fn push<T: Into<Value>>(&mut self, value: T) -> Result<(), StackError>

pub fn clear(&mut self)

pub fn len(&self) -> usize

pub fn pop(&mut self) -> Value

Returns Nil if the stack is empty

pub fn pop_n<const N: usize>(&mut self) -> [Value; N]

pub fn pop_w_offset(&mut self, offset: usize) -> Value

Pop value, treating offset as the 0 position

use cao_lang::collections::value_stack::ValueStack;
use cao_lang::prelude::Value;

let mut stack = ValueStack::new(4);
stack.push(Value::Integer(42));
let res = stack.pop_w_offset(1);
assert_eq!(res, Value::Nil);
let res = stack.pop();
assert_eq!(res, Value::Integer(42));

pub fn set(&mut self, index: usize, value: Value) -> Result<Value, StackError>

Sets a value Only previous values may be set

Returns the old value

pub fn get(&mut self, index: usize) -> Value

pub fn clear_until(&mut self, index: usize) -> Value

Returns the very first item

pub fn is_empty(&self) -> bool

pub fn last(&self) -> Value

Returns Null if the stack is empty

pub fn peek_last(&self, n: usize) -> Value

Returns Null if the index is out of bounds

pub fn iter(&self) -> impl Iterator<Item = Value>

pub fn top_location(&self) -> *const Value

Trait Implementations

impl Debug for ValueStack

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

Formats the value using the given formatter.

impl Display for ValueStack

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

Formats the value using the given formatter.