//! Reserved names for object members.

use crate::obj::sym::{Sym, SymRef, global_sym, global_sym_ref};
use once_cell::sync::Lazy;

macro_rules! name {
    ($name:ident, $text:expr $(,)?) => {
        pub static $name: Lazy<NameInfo> = Lazy::new(|| {
            let name = $text;
            let sym = global_sym(name.to_string());
            NameInfo { name, sym, }
        });
    }
}

pub struct NameInfo {
    pub name: &'static str,
    pub sym: Sym,
}

impl NameInfo {
    pub fn sym_ref(&self) -> SymRef {
        global_sym_ref(self.sym)
    }
}

//
// Types
//
name!(INT_NAME, "Int");
name!(TY_NAME, "Type");
name!(SYM_NAME, "Sym");

//
// Members
//
name!(TY_MEMBER_NAME, "__type__");
name!(CALL_MEMBER_NAME, "__call__");
name!(NAME_MEMBER_NAME, "__name__");
name!(GET_ATTR_MEMBER_NAME, "__get_attr__");
name!(SET_ATTR_MEMBER_NAME, "__set_attr__");
name!(SELF_MEMBER_NAME, "__self__");
name!(FUNC_MEMBER_NAME, "__func__");

//
// Predefined VM-aware symbols
//
name!(SCOPE_NAME, "__scope__");

//
// Builtin functions
//
//name!(REPR_FUN_NAME, REPR_FUN_SYM, "repr");
//name!(GET_LOCAL_FUN_NAME, GET_LOCAL_FUN_SYM, "get_local");
//name!(SET_LOCAL_FUN_NAME, SET_LOCAL_FUN_SYM, "set_local");

//
// Builtin constants
//
name!(TRUE_NAME, "true");
name!(FALSE_NAME, "false");
name!(NIL_NAME, "nil");

// Operator function names
name!(EQ_EQ_OP_NAME, "__eq__");
name!(LT_OP_NAME, "__lt__");
name!(GT_OP_NAME, "__gt__");
name!(LT_EQ_OP_NAME, "__le__");
name!(GT_EQ_OP_NAME, "__ge__");
name!(PLUS_OP_NAME, "__add__");
name!(MINUS_OP_NAME, "__sub__");
name!(TIMES_OP_NAME, "__mul__");
name!(DIV_OP_NAME, "__div__");