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|
use std::cell::UnsafeCell;
use std::fmt::{
self,
Debug,
Formatter,
};
use std::sync::Arc;
use dashmap::DashMap;
macro_rules! mkidtype {
($name:ident) => {
#[repr(transparent)]
#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
pub struct $name(pub u32);
impl $name {
#[allow(dead_code)]
pub const INVALID: Self = Self(u32::MAX);
}
impl From<usize> for $name {
fn from(n: usize) -> Self {
return Self(n as u32);
}
}
impl Into<usize> for $name {
fn into(self) -> usize {
return self.0 as usize;
}
}
impl<T> std::ops::Index<$name> for [T] {
type Output = T;
fn index(&self, index: $name) -> &Self::Output {
return &self[index.0 as usize];
}
}
impl<T> std::ops::IndexMut<$name> for [T] {
fn index_mut(&mut self, index: $name) -> &mut Self::Output {
return &mut self[index.0 as usize];
}
}
};
}
pub(crate) use mkidtype;
mkidtype!(FileId);
mkidtype!(ScopeId);
mkidtype!(SymbolId);
mkidtype!(TypeId);
/* Bypass Rust autism */
#[repr(transparent)]
#[derive(Debug)]
pub struct TypeCell(UnsafeCell<TypeId>);
impl TypeCell {
pub fn new(id: TypeId) -> Self {
return Self(UnsafeCell::new(id));
}
pub fn get(&self) -> TypeId {
return unsafe { *self.0.get() };
}
pub fn set(&self, id: TypeId) {
return unsafe { *self.0.get() = id };
}
}
unsafe impl Sync for TypeCell {}
impl ScopeId {
pub const GLOBAL: Self = Self(0);
}
/// A fully-qualified symbol name
#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
pub struct QualifiedId {
pub file: FileId,
pub scope: ScopeId,
pub sym: SymbolId,
}
#[derive(Debug)]
pub struct Scope {
pub parent: ScopeId,
pub symtab: DashMap<SymbolId, Symbol>,
}
impl Scope {
pub fn new(parent: ScopeId) -> Self {
return Self {
parent,
symtab: DashMap::new(),
};
}
}
#[repr(u8)]
#[derive(Debug, Default)]
pub enum ResolutionState {
#[default]
Unresolved,
Resolving,
Resolved,
Poisoned,
}
#[derive(Debug)]
pub struct Symbol {
pub state: ResolutionState,
pub kind: SymbolType,
pub vtype: TypeId,
}
impl Symbol {
pub fn new(kind: SymbolType) -> Self {
return Self {
state: ResolutionState::Unresolved,
kind,
vtype: TypeId::INVALID,
};
}
}
#[repr(u8)]
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub enum SymbolType {
Constant,
FuncParam,
}
#[derive(Clone, Eq, PartialEq, Hash)]
pub enum OryxType {
/* Untyped types – the types of constant literals */
UBoolean,
UNumber,
UString,
Boolean,
Function {
args: Arc<[TypeId]>,
rets: Arc<[TypeId]>,
},
Integer {
bits: usize,
signed: bool,
},
Pointer {
base: TypeId,
},
Type(TypeId),
MultiValue(Arc<[TypeId]>),
}
#[derive(Clone, Copy)]
pub struct SubNodes(pub u32, pub u32);
impl Debug for SubNodes {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
let __ = format_args!("_");
return f
.debug_tuple("SubNodes")
.field(if self.0 != u32::MAX { &self.0 } else { &__ })
.field(if self.1 != u32::MAX { &self.1 } else { &__ })
.finish();
}
}
impl Default for SubNodes {
fn default() -> Self {
return Self(u32::MAX, u32::MAX);
}
}
|
