Struct Ctx

pub struct Ctx {
    pub values: Vec<N>,
    pub idents: Vec<String>,
    pub code: Vec<char>,
    pub deep: usize,
}

Interpreter context, holds all state during execution.

Fields

values: Vec<N>

idents: Vec<String>

code: Vec<char>

deep: usize

Implementations

impl Ctx

pub fn new() -> Ctx

pub fn drain(&mut self, from: usize)

pub fn set_val(&mut self, name: &str, n: N)

pub fn set_val_absolute(&mut self, i: usize, name: &str, n: N)

pub fn find_var(&mut self, name: &str) -> Option<(usize, &mut N)>

Find a variable declared in the scope, or any parent scope

returns the path and the variable value

pub fn insert_code(&mut self, code: &str)

pub fn parse_next_expr(&mut self) -> Result<N, &'static str>

Trait Implementations

impl Default for Ctx

fn default() -> Self

Returns the “default value” for a type.