rhai/src/ast/flags.rs
2022-08-14 14:20:37 +08:00

56 lines
1.6 KiB
Rust

//! Module defining script options.
use bitflags::bitflags;
#[cfg(feature = "no_std")]
use std::prelude::v1::*;
/// A type representing the access mode of a function.
#[derive(Debug, Clone, Copy, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[cfg_attr(feature = "metadata", derive(serde::Serialize))]
#[cfg_attr(feature = "metadata", serde(rename_all = "camelCase"))]
#[non_exhaustive]
pub enum FnAccess {
/// Private function.
Private,
/// Public function.
Public,
}
impl FnAccess {
/// Is this function private?
#[inline(always)]
#[must_use]
pub fn is_private(self) -> bool {
match self {
Self::Private => true,
Self::Public => false,
}
}
/// Is this function public?
#[inline(always)]
#[must_use]
pub fn is_public(self) -> bool {
match self {
Self::Private => false,
Self::Public => true,
}
}
}
bitflags! {
/// _(internals)_ Bit-flags containing [`AST`][crate::AST] node configuration options.
/// Exported under the `internals` feature only.
pub struct ASTFlags: u8 {
/// No options for the [`AST`][crate::AST] node.
const NONE = 0b_0000_0000;
/// The [`AST`][crate::AST] node is read-only.
const CONSTANT = 0b_0000_0001;
/// The [`AST`][crate::AST] node is exposed to the outside (i.e. public).
const EXPORTED = 0b_0000_0010;
/// The [`AST`][crate::AST] node is negated (i.e. whatever information is the opposite).
const NEGATED = 0b_0000_0100;
/// The [`AST`][crate::AST] node breaks out of normal control flow.
const BREAK = 0b_0000_1000;
}
}