use crate::symbol::parameter_symbol::ParameterSymbol;
use std::collections::HashMap;
use std::fmt::{Debug, Formatter};
use std::rc::Rc;

pub struct FunctionScope {
    debug_name: String,
    parent_id: usize,
    parameter_symbols: HashMap<Rc<str>, Rc<ParameterSymbol>>,
}

impl FunctionScope {
    pub fn new(debug_name: &str, parent_id: usize) -> Self {
        Self {
            debug_name: debug_name.into(),
            parent_id,
            parameter_symbols: HashMap::new(),
        }
    }

    pub fn parameter_symbols(&self) -> &HashMap<Rc<str>, Rc<ParameterSymbol>> {
        &self.parameter_symbols
    }

    pub fn parameter_symbols_mut(&mut self) -> &mut HashMap<Rc<str>, Rc<ParameterSymbol>> {
        &mut self.parameter_symbols
    }

    pub fn parent_id(&self) -> usize {
        self.parent_id
    }
}

impl Debug for FunctionScope {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        write!(f, "FunctionScope({}, {})", self.debug_name, self.parent_id)
    }
}