Began implementing fully isomorphic macros
Like Rust's Proc macros. Now we have preprocessor recursion to worry about. I also made a cool macro for enums
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@@ -5,26 +5,25 @@ use std::sync::{Arc, Mutex};
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use itertools::Itertools;
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use lazy_static::lazy_static;
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use never::Never;
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use orchid_api_traits::Encode;
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use orchid_base::error::OrcRes;
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use orchid_base::interner::Tok;
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use orchid_base::name::Sym;
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use trait_set::trait_set;
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use crate::atom::{Atomic, ReqPck};
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use crate::atom::{MethodSet, Atomic};
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use crate::atom_owned::{DeserializeCtx, OwnedAtom, OwnedVariant};
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use crate::conv::ToExpr;
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use crate::expr::{ExprHandle, GenExpr};
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use crate::expr::{Expr, ExprHandle};
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use crate::system::SysCtx;
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trait_set! {
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trait FunCB = Fn(Vec<ExprHandle>) -> OrcRes<GenExpr> + Send + Sync + 'static;
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trait FunCB = Fn(Vec<Expr>) -> OrcRes<Expr> + Send + Sync + 'static;
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}
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pub trait ExprFunc<I, O>: Clone + Send + Sync + 'static {
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const ARITY: u8;
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fn apply(&self, v: Vec<ExprHandle>) -> OrcRes<GenExpr>;
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fn apply(&self, v: Vec<Expr>) -> OrcRes<Expr>;
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}
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lazy_static! {
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@@ -34,7 +33,7 @@ lazy_static! {
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#[derive(Clone)]
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pub(crate) struct Fun {
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path: Sym,
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args: Vec<ExprHandle>,
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args: Vec<Expr>,
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arity: u8,
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fun: Arc<dyn FunCB>,
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}
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@@ -53,14 +52,14 @@ impl Fun {
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}
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impl Atomic for Fun {
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type Data = ();
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type Req = Never;
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type Variant = OwnedVariant;
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fn reg_reqs() -> MethodSet<Self> { MethodSet::new() }
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}
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impl OwnedAtom for Fun {
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type Refs = Vec<ExprHandle>;
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type Refs = Vec<Expr>;
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fn val(&self) -> Cow<'_, Self::Data> { Cow::Owned(()) }
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fn call_ref(&self, arg: ExprHandle) -> GenExpr {
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let new_args = self.args.iter().cloned().chain([arg]).collect_vec();
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fn call_ref(&self, arg: ExprHandle) -> Expr {
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let new_args = self.args.iter().cloned().chain([Expr::new(Arc::new(arg))]).collect_vec();
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if new_args.len() == self.arity.into() {
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(self.fun)(new_args).to_expr()
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} else {
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@@ -68,8 +67,7 @@ impl OwnedAtom for Fun {
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.to_expr()
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}
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}
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fn call(self, arg: ExprHandle) -> GenExpr { self.call_ref(arg) }
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fn handle_req(&self, pck: impl ReqPck<Self>) { pck.never() }
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fn call(self, arg: ExprHandle) -> Expr { self.call_ref(arg) }
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fn serialize(&self, _: SysCtx, sink: &mut (impl io::Write + ?Sized)) -> Self::Refs {
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self.path.encode(sink);
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self.args.clone()
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@@ -86,7 +84,7 @@ mod expr_func_derives {
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use super::ExprFunc;
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use crate::conv::{ToExpr, TryFromExpr};
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use crate::func_atom::{ExprHandle, GenExpr};
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use crate::func_atom::Expr;
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macro_rules! expr_func_derive {
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($arity: tt, $($t:ident),*) => {
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@@ -97,7 +95,7 @@ mod expr_func_derives {
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Func: Fn($($t,)*) -> Out + Clone + Send + Sync + 'static
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> ExprFunc<($($t,)*), Out> for Func {
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const ARITY: u8 = $arity;
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fn apply(&self, v: Vec<ExprHandle>) -> OrcRes<GenExpr> {
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fn apply(&self, v: Vec<Expr>) -> OrcRes<Expr> {
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assert_eq!(v.len(), Self::ARITY.into(), "Arity mismatch");
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let [$([< $t:lower >],)*] = v.try_into().unwrap_or_else(|_| panic!("Checked above"));
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Ok(self($($t::try_from_expr([< $t:lower >])?,)*).to_expr())
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