@@ -1,28 +1,39 @@
11use core::panic;
2+use murmur3::murmur3_32;
23use num_integer::Integer;
34use std::{
4− cmp::Ordering,
5+ borrow::Borrow,
56 collections::BTreeMap,
67 iter::{once, repeat_n, zip},
78 rc::Rc,
89};
910
1011use crate::{
11− interpreter::{slam, InterpreterContext},
12− noun::{self, cell, Atom, Noun},
12+ interpreter::{slam_pulled_gate, InterpreterContext, TTanks, EMPTY_TANKS},
13+ noun::{self, cell, AsNoun, Atom, Edge, Hair, Nail, Noun},
1314};
1415
15−fn traverse_iter_option<T: Clone, I: Iterator<Item = Option<T>>>(xs: I) -> Option<Vec<T>> {
16+fn traverse_iter_result<E: Clone, T: Clone, I: Iterator<Item = Result<T, E>>>(
17+ xs: I,
18+) -> Result<Vec<T>, E> {
1619 let mut target: Vec<T> = Vec::new();
1720
1821 for x in xs {
1922 target.push(x.clone()?)
2023 }
2124
22− Some(target)
25+ Ok(target)
2326}
2427
2528pub type Jets = BTreeMap<noun::Hash, Jet>;
29+pub type DoubleJets = BTreeMap<noun::Hash, DoubleJet>;
30+
31+pub fn generate_double_jets() -> DoubleJets {
32+ BTreeMap::from([
33+ (210326504639957723220404138306543145797, JUST),
34+ // (255213039400865122956425872354360738044, STIR),
35+ ])
36+}
2637
2738pub fn generate_jets() -> Jets {
2839 BTreeMap::from([
@@ -93,41 +104,67 @@ pub fn generate_jets() -> Jets {
93104 (311027486926441687148059942599447850754, DIS),
94105 (330927609077697663248483044495963838437, MIX),
95106 (39579736615539990724554083585557839000, NOT),
107+ (3482046397915506566435874021936376320, LAST),
108+ (124976064672625230427889101290245200507, TRIP),
109+ (4078279288073906183633157465551067635, MUK),
110+ (261900159748071234702685239353558471892, MUG),
111+ (198191257620924788695943358402651905954, AOR),
112+ (299422828284010240628877806738195667652, DOR),
113+ (166326796552601297695313176538120818632, GOR),
114+ (7942398240152905363972500667649380756, MOR),
115+ (315687984998079865981003916817293521765, LOOK),
96116 ])
97117}
98118
99−pub type Jet = fn(ctx: &InterpreterContext, Rc<Noun>) -> Option<Rc<Noun>>;
119+pub type Jet = fn(ctx: &mut InterpreterContext, &Rc<Noun>) -> Result<Rc<Noun>, TTanks>;
120+pub type DoubleJet = fn(ctx: &mut InterpreterContext, &Rc<Noun>, &Rc<Noun>) -> Option<Rc<Noun>>;
100121
101−static BINARY_ATOM: fn(Rc<Noun>, fn(&Atom, &Atom) -> Atom) -> Option<Rc<Noun>> =
102− |n: Rc<Noun>, f: fn(&Atom, &Atom) -> Atom| {
103− let (p, q) = n.as_cell()?;
104− Some(Rc::new(Noun::Atom(f(p.as_atom()?, q.as_atom()?))))
122+static BINARY_ATOM: fn(&Rc<Noun>, fn(&Atom, &Atom) -> Atom) -> Result<Rc<Noun>, TTanks> =
123+ |n: &Rc<Noun>, f: fn(&Atom, &Atom) -> Atom| {
124+ let (p, q) = n.as_cell().ok_or(TTanks::new())?;
125+ Ok(Rc::new(Noun::Atom(f(
126+ p.as_atom().ok_or(TTanks::new())?,
127+ q.as_atom().ok_or(TTanks::new())?,
128+ ))))
105129 };
106130
107131static BINARY_ATOM_LOOB: fn(
108132 &InterpreterContext,
109− Rc<Noun>,
133+ &Rc<Noun>,
110134 fn(&Atom, &Atom) -> bool,
111−) -> Option<Rc<Noun>> = |ctx: &InterpreterContext, n: Rc<Noun>, f: fn(&Atom, &Atom) -> bool| {
112− let (p, q) = n.as_cell().unwrap();
135+) -> Result<Rc<Noun>, TTanks> =
136+ |ctx: &InterpreterContext, n: &Rc<Noun>, f: fn(&Atom, &Atom) -> bool| {
137+ let (p, q) = n.as_cell().ok_or(TTanks::new())?;
138+
139+ if f(
140+ p.as_atom().ok_or(TTanks::new())?,
141+ q.as_atom().ok_or(TTanks::new())?,
142+ ) {
143+ Ok(ctx.nouns.sig.clone())
144+ } else {
145+ Ok(ctx.nouns.one.clone())
146+ }
147+ };
113148
114− if f(p.as_atom()?, q.as_atom()?) {
115− Some(ctx.nouns.sig.clone())
116− } else {
117− Some(ctx.nouns.one.clone())
118− }
149+static BINARY_ATOM_PAIR: fn(
150+ &Rc<Noun>,
151+ fn(&Atom, &Atom) -> (Atom, Atom),
152+) -> Result<Rc<Noun>, TTanks> = |n: &Rc<Noun>, f: fn(&Atom, &Atom) -> (Atom, Atom)| {
153+ let (p, q) = n.as_cell().ok_or(TTanks::new())?;
154+
155+ let (a, b) = f(
156+ p.as_atom().ok_or(TTanks::new())?,
157+ q.as_atom().ok_or(TTanks::new())?,
158+ );
159+ Ok(cell(&Rc::new(Noun::Atom(a)), &Rc::new(Noun::Atom(b))))
119160};
120161
121−static BINARY_ATOM_PAIR: fn(Rc<Noun>, fn(&Atom, &Atom) -> (Atom, Atom)) -> Option<Rc<Noun>> =
122− |n: Rc<Noun>, f: fn(&Atom, &Atom) -> (Atom, Atom)| {
123− let (p, q) = n.as_cell().unwrap();
124−
125− let (a, b) = f(p.as_atom().unwrap(), q.as_atom().unwrap());
126− Some(cell(Rc::new(Noun::Atom(a)), Rc::new(Noun::Atom(b))))
127− };
128−
129162static ADD: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a + b);
130−static DEC: Jet = |_ctx, n| Some(Rc::new(Noun::Atom(n.as_atom().unwrap() - 1u32)));
163+static DEC: Jet = |_ctx, n| {
164+ Ok(Rc::new(Noun::Atom(
165+ n.as_atom().ok_or(TTanks::new())? - 1u32,
166+ )))
167+};
131168static DVR: Jet = |_ctx, n| BINARY_ATOM_PAIR(n, |a, b| a.div_rem(&b));
132169static DIV: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a / b);
133170static GTE: Jet = |ctx, n| BINARY_ATOM_LOOB(ctx, n, |a, b| a >= b);
@@ -141,40 +178,42 @@ static MUL: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a * b);
141178static SUB: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a - b);
142179
143180static CAP: Jet = |ctx, n| {
144− let Noun::Atom(n) = (*n).clone() else {
145− panic!()
146− };
147− CAP_ATOM(ctx, n)
181+ let n = n.as_atom().ok_or(TTanks::new())?;
182+ CAP_ATOM(ctx, n.clone())
148183};
149−static CAP_ATOM: fn(&InterpreterContext, Atom) -> Option<Rc<Noun>> = |ctx, n: Atom| {
184+
185+static CAP_ATOM: fn(&InterpreterContext, Atom) -> Result<Rc<Noun>, TTanks> = |ctx, n: Atom| {
150186 let mut n_iter = n.iter_u32_digits();
151187
152188 match n_iter.len() {
153− 0 => panic!(),
189+ 0 => Err(TTanks::new()),
154190 1 => CAP_U32(ctx, n_iter.next().unwrap()),
155191 _ => CAP_ATOM(ctx, n >> 1),
156192 }
157193};
158−static CAP_U32: fn(ctx: &InterpreterContext, u32) -> Option<Rc<Noun>> = |ctx, n| match n {
159− 0 | 1 => panic!(),
160− 2 => Some(ctx.nouns.two.clone()),
161− 3 => Some(ctx.nouns.three.clone()),
194+static CAP_U32: fn(ctx: &InterpreterContext, u32) -> Result<Rc<Noun>, TTanks> = |ctx, n| match n {
195+ 0 | 1 => Err(TTanks::new()),
196+ 2 => Ok(ctx.nouns.two.clone()),
197+ 3 => Ok(ctx.nouns.three.clone()),
162198 n => CAP_U32(ctx, n >> 1),
163199};
164200
165201static MAS: Jet = |ctx, n| {
166− let Noun::Atom(n) = (*n).clone() else {
167− panic!()
168− };
169− Some(Rc::new(Noun::Atom(MAS_ATOM(ctx, n))))
202+ let n = n.as_atom().ok_or(TTanks::new())?;
203+ Ok(Rc::new(Noun::Atom(
204+ MAS_ATOM(ctx, n.clone()).ok_or(TTanks::new())?,
205+ )))
170206};
171−static MAS_ATOM: fn(&InterpreterContext, Atom) -> Atom = |ctx, n| {
207+static MAS_ATOM: fn(&InterpreterContext, Atom) -> Option<Atom> = |ctx, n| {
172208 let mut n_iter = n.iter_u32_digits();
173209
174210 match n_iter.len() {
175− 0 => panic!(),
176− 1 => Atom::new(vec![MAS_U32(n_iter.next().unwrap())]),
177− _ => (&n & &ctx.big_uints.one) + (MAS_ATOM(ctx, &n >> 1) << 1),
211+ 0 => None,
212+ 1 => match n_iter.next().unwrap() {
213+ 1 => None,
214+ x => Some(Atom::new(vec![MAS_U32(x)])),
215+ },
216+ _ => Some((&n & &ctx.big_uints.one) + (MAS_ATOM(ctx, &n >> 1)? << 1)),
178217 }
179218};
180219static MAS_U32: fn(u32) -> u32 = |n| match n {
@@ -184,26 +223,24 @@ static MAS_U32: fn(u32) -> u32 = |n| match n {
184223};
185224
186225static PEG: Jet = |ctx, n| {
187− let Noun::Cell { p: a, q: b, .. } = (*n).clone() else {
188− panic!()
189− };
226+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
190227
191− let a = a.as_atom().unwrap();
192− let b = b.as_atom().unwrap();
228+ let a = a.as_atom().ok_or(TTanks::new())?;
229+ let b = b.as_atom().ok_or(TTanks::new())?;
193230
194231 if *a == Atom::ZERO {
195− panic!()
232+ return Err(TTanks::new());
196233 };
197234
198− Some(Rc::new(Noun::Atom(PEG_ATOM(ctx, a, b.clone()))))
235+ Ok(Rc::new(Noun::Atom(PEG_ATOM(ctx, a, b.clone())?)))
199236};
200−static PEG_ATOM: fn(&InterpreterContext, &Atom, Atom) -> Atom = |ctx, a, b| {
237+static PEG_ATOM: fn(&InterpreterContext, &Atom, Atom) -> Result<Atom, TTanks> = |ctx, a, b| {
201238 let mut b_iter = b.iter_u32_digits();
202239
203240 match b_iter.len() {
204− 0 => panic!(),
205− 1 => PEG_U32(a, b_iter.next().unwrap()),
206− _ => (&b & &ctx.big_uints.one) + (PEG_ATOM(ctx, a, b >> 1) << 1),
241+ 0 => Err(TTanks::new()),
242+ 1 => Ok(PEG_U32(a, b_iter.next().unwrap())),
243+ _ => Ok((&b & &ctx.big_uints.one) + (PEG_ATOM(ctx, a, b >> 1)? << 1)),
207244 }
208245};
209246static PEG_U32: fn(&Atom, u32) -> Atom = |a, b| match b {
@@ -215,12 +252,12 @@ static PEG_U32: fn(&Atom, u32) -> Atom = |a, b| match b {
215252};
216253
217254static FAND: Jet = |ctx, n| {
218− let (nedl, hstk) = n.as_cell().unwrap();
255+ let (nedl, hstk) = n.as_cell().ok_or(TTanks::new())?;
219256 if nedl.is_sig() || hstk.is_sig() {
220− return Some(ctx.nouns.sig.clone());
257+ return Ok(ctx.nouns.sig.clone());
221258 }
222259
223− let nedl: Vec<Rc<Noun>> = nedl.list_iter().collect();
260+ let nedl: Vec<&Rc<Noun>> = nedl.list_iter().collect();
224261
225262 let mut result: Vec<u32> = Vec::new();
226263
@@ -241,16 +278,16 @@ static FAND: Jet = |ctx, n| {
241278 inner_iter = iter.clone();
242279 }
243280
244− Some(Noun::list(result.iter().map(|a| Noun::from_u32(*a))))
281+ Ok(Noun::list(result.iter().map(|a| Noun::from_u32(*a))))
245282};
246283
247284static FIND: Jet = |ctx, n| {
248− let (nedl, hstk) = n.as_cell().unwrap();
285+ let (nedl, hstk) = n.as_cell().ok_or(TTanks::new())?;
249286 if nedl.is_sig() || hstk.is_sig() {
250− return Some(ctx.nouns.sig.clone());
287+ return Ok(ctx.nouns.sig.clone());
251288 }
252289
253− let nedl: Vec<Rc<Noun>> = nedl.list_iter().collect();
290+ let nedl: Vec<&Rc<Noun>> = nedl.list_iter().collect();
254291
255292 let mut iter = zip(0.., hstk.list_iter());
256293
@@ -263,30 +300,28 @@ static FIND: Jet = |ctx, n| {
263300 .collect::<Vec<_>>()
264301 == nedl
265302 {
266− return Some(Rc::new(Noun::from_u32(i)).unit());
303+ return Ok(Rc::new(Noun::from_u32(i)).unit());
267304 }
268305
269306 inner_iter = iter.clone();
270307 }
271308
272− return Some(ctx.nouns.sig.clone());
309+ return Ok(ctx.nouns.sig.clone());
273310};
274311
275312static FLOP: Jet = |ctx, n| {
276− Some(
277− n.list_iter()
278− .fold(ctx.nouns.sig.clone(), |tail, head| cell(head, tail)),
279− )
313+ Ok(n.list_iter()
314+ .fold(ctx.nouns.sig.clone(), |tail, head| cell(&head, &tail)))
280315};
281316
282317static GULF: Jet = |_ctx, n| {
283− let (from, to) = n.as_cell().unwrap();
318+ let (from, to) = n.as_cell().ok_or(TTanks::new())?;
284319
285− let mut from = (*from.as_atom().unwrap()).clone();
286− let to = to.as_atom().unwrap().clone();
320+ let mut from = (*from.as_atom().ok_or(TTanks::new())?).clone();
321+ let to = to.as_atom().ok_or(TTanks::new())?.clone();
287322
288323 if from > to {
289− panic!()
324+ return Err(TTanks::new());
290325 }
291326
292327 let mut tmp = Vec::new();
@@ -296,220 +331,251 @@ static GULF: Jet = |_ctx, n| {
296331 from += 1u32;
297332 }
298333
299− Some(Noun::list(tmp.iter().rev().map(|a| Noun::Atom(a.clone()))))
334+ Ok(Noun::list(tmp.iter().rev().map(|a| Noun::Atom(a.clone()))))
300335};
301336
302337static INTO: Jet = |_ctx, n| {
303− let (a, b) = n.as_cell().unwrap();
304− let (b, c) = b.as_cell().unwrap();
338+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
339+ let (b, c) = b.as_cell().ok_or(TTanks::new())?;
305340
306− let mut b_iter = b.as_atom().unwrap().iter_u32_digits();
341+ let mut b_iter = b.as_atom().ok_or(TTanks::new())?.iter_u32_digits();
307342
308343 match b_iter.len() {
309− 0 => Some(cell(c, a)),
344+ 0 => Ok(cell(&c, &a)),
310345 1 => {
311346 let l = a.list_iter();
312347 let b = b_iter.next().unwrap() as usize;
313− Some(Noun::list_refs(
348+ Ok(Noun::list_refs(
314349 l.clone()
315350 .take(b)
316351 .chain(once(c))
317352 .chain(l.skip(b))
318353 .collect::<Vec<_>>()
319354 .iter()
320− .map(|x| x.clone()),
355+ .cloned()
356+ .cloned(),
321357 ))
322358 }
323− _ => Some(Noun::list_refs(
359+ _ => Ok(Noun::list_refs(
324360 a.list_iter()
325361 .chain(once(c))
326362 .collect::<Vec<_>>()
327363 .iter()
328− .map(|x| x.clone()),
364+ .cloned()
365+ .cloned(),
329366 )),
330367 }
331368};
332369
333370static JOIN: Jet = |_ctx, n| {
334− let (sep, list) = n.as_cell().unwrap();
335− Some(Noun::list_refs(
371+ let (sep, list) = n.as_cell().ok_or(TTanks::new())?;
372+ Ok(Noun::list_refs(
336373 list.list_iter()
337374 .intersperse(sep)
338375 .collect::<Vec<_>>()
339376 .iter()
340− .map(|x| x.clone()),
377+ .cloned()
378+ .cloned(),
341379 ))
342380};
343381
344382static LENT: Jet = |_ctx, n| {
345− Some(Rc::new(Noun::from_u32(
383+ Ok(Rc::new(Noun::from_u32(
346384 n.list_iter().fold(0u32, |l, _| l + 1),
347385 )))
348386};
349387
350388static LEVY: Jet = |ctx, n| {
351− let (a, b) = n.as_cell().unwrap();
352− if traverse_iter_option(a.list_iter().map(|n| slam(ctx, b.clone(), n)))?
389+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
390+ if traverse_iter_result(a.list_iter().map(|n| slam_pulled_gate(ctx, b, n)))?
353391 .iter()
354392 .all(|x| x.is_y())
355393 {
356− Some(ctx.nouns.y.clone())
394+ Ok(ctx.nouns.y.clone())
357395 } else {
358− Some(ctx.nouns.n.clone())
396+ Ok(ctx.nouns.n.clone())
359397 }
360398};
361399
362400static LIEN: Jet = |ctx, n| {
363− let (a, b) = n.as_cell().unwrap();
364− if traverse_iter_option(a.list_iter().map(|n| slam(ctx, b.clone(), n)))?
401+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
402+ if traverse_iter_result(a.list_iter().map(|n| slam_pulled_gate(ctx, b, n)))?
365403 .iter()
366404 .any(|x| x.is_y())
367405 {
368− Some(ctx.nouns.y.clone())
406+ Ok(ctx.nouns.y.clone())
369407 } else {
370− Some(ctx.nouns.n.clone())
408+ Ok(ctx.nouns.n.clone())
371409 }
372410};
373411
374412static MURN: Jet = |ctx, n| {
375− let (a, b) = n.as_cell().unwrap();
413+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
376414
377− Some(Noun::list_refs(
378− a.list_iter()
379− .filter_map(|n| slam(ctx, b.clone(), n)?.as_unit())
380− .collect::<Vec<_>>()
381− .iter()
382− .map(|x| x.clone()),
415+ Ok(Noun::list_refs(
416+ traverse_iter_result(
417+ a.list_iter()
418+ .map(|n| Ok(slam_pulled_gate(ctx, b, n)?.as_unit().cloned())),
419+ )?
420+ .iter()
421+ .filter_map(|x| x.clone()),
383422 ))
384423};
385424
386425static REAP: Jet = |_ctx, n| {
387− let (a, b) = n.as_cell().unwrap();
426+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
388427
389− Some(Noun::list_refs(repeat_n(b, a.as_u32().unwrap() as usize)))
428+ Ok(Noun::list_refs(repeat_n(
429+ b.clone(),
430+ a.as_u32().unwrap() as usize,
431+ )))
390432};
391433
392−static REAR: Jet = |_ctx, n| n.list_iter().last();
434+static REAR: Jet = |_ctx, n| n.list_iter().last().ok_or(TTanks::new()).cloned();
393435
394436static REEL: Jet = |ctx, n| {
395− let (list, gate) = n.as_cell().unwrap();
437+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
396438
397439 list.list_iter().collect::<Vec<_>>().iter().rfold(
398− Some(gate.clone().gate_sample()?.as_cell()?.1),
399− |acc, next| slam(ctx, gate.clone(), cell(next.clone(), acc?)),
440+ Ok(gate
441+ .gate_sample()
442+ .ok_or(TTanks::new())?
443+ .as_cell()
444+ .ok_or(TTanks::new())?
445+ .1
446+ .clone()),
447+ |acc, next| {
448+ let acc = acc?;
449+ slam_pulled_gate(ctx, gate, &cell(&next, &acc))
450+ },
400451 )
401452};
402453
403454static ROLL: Jet = |ctx, n| {
404− let (list, gate) = n.as_cell().unwrap();
455+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
405456
406457 list.list_iter().fold(
407− Some(gate.clone().gate_sample()?.as_cell()?.1),
408− |acc, next| slam(ctx, gate.clone(), cell(next.clone(), acc?)),
458+ Ok(gate
459+ .clone()
460+ .gate_sample()
461+ .ok_or(TTanks::new())?
462+ .as_cell()
463+ .ok_or(TTanks::new())?
464+ .1
465+ .clone()),
466+ |acc, next| {
467+ let acc = acc?;
468+ slam_pulled_gate(ctx, gate, &cell(&next, &acc))
469+ },
409470 )
410471};
411472
412473static SCAG: Jet = |_ctx, n| {
413− let (a, b) = n.as_cell().unwrap();
474+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
414475
415− Some(Noun::list_refs(
476+ Ok(Noun::list_refs(
416477 b.list_iter()
417478 .take(a.as_u32().unwrap() as usize)
418479 .collect::<Vec<_>>()
419480 .iter()
420− .map(|x| x.clone()),
481+ .cloned()
482+ .cloned(),
421483 ))
422484};
423485
424486static SKID: Jet = |ctx, n| {
425− let (list, gate) = n.as_cell().unwrap();
487+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
426488
427− let slammed_n = traverse_iter_option(
489+ let slammed_n = traverse_iter_result(
428490 list.list_iter()
429− .map(|n| Some((slam(ctx, gate.clone(), n.clone())?, n))),
491+ .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
430492 )?;
431493 let (ys, ns): (Vec<_>, _) = slammed_n.iter().partition(|(l, _)| l.is_y());
432494
433− Some(cell(
434− Noun::list_refs(ys.iter().map(|(_, x)| x).cloned()),
435− Noun::list_refs(ns.iter().map(|(_, x)| x).cloned()),
495+ Ok(cell(
496+ &Noun::list_refs(ys.iter().map(|(_, x)| (*x).clone())),
497+ &Noun::list_refs(ns.iter().map(|(_, x)| (*x).clone())),
436498 ))
437499};
438500
439501static SKIM: Jet = |ctx, n| {
440− let (list, gate) = n.as_cell().unwrap();
502+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
441503
442− Some(Noun::list_refs(
443− traverse_iter_option(
504+ Ok(Noun::list_refs(
505+ traverse_iter_result(
444506 list.list_iter()
445− .map(|n| Some((slam(ctx, gate.clone(), n.clone())?, n))),
507+ .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
446508 )?
447509 .iter()
448510 .filter(|(l, _)| l.is_y())
449− .map(|(_, x)| x)
450− .cloned(),
511+ .map(|(_, x)| (*x).clone()),
451512 ))
452513};
453514
454515static SKIP: Jet = |ctx, n| {
455− let (list, gate) = n.as_cell().unwrap();
516+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
456517
457− Some(Noun::list_refs(
458− traverse_iter_option(
518+ Ok(Noun::list_refs(
519+ traverse_iter_result(
459520 list.list_iter()
460− .map(|n| Some((slam(ctx, gate.clone(), n.clone())?, n))),
521+ .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
461522 )?
462523 .iter()
463524 .filter(|(l, _)| l.is_y())
464− .map(|(_, x)| x)
465− .cloned(),
525+ .map(|(_, x)| (*x).clone()),
466526 ))
467527};
468528
469529static SLAG: Jet = |ctx, n| {
470− let (a, list) = n.as_cell().unwrap();
530+ let (a, list) = n.as_cell().ok_or(TTanks::new())?;
471531
472− let mut a_iter = a.as_atom().unwrap().iter_u32_digits();
532+ let mut a_iter = a.as_atom().ok_or(TTanks::new())?.iter_u32_digits();
473533
474534 match a_iter.len() {
475− 0 => Some(list),
476− 1 => Some(Noun::list_refs(
535+ 0 => Ok(list.clone()),
536+ 1 => Ok(Noun::list_refs(
477537 list.list_iter()
478538 .skip(a_iter.next().unwrap() as usize)
479539 .collect::<Vec<_>>()
480540 .iter()
541+ .cloned()
481542 .cloned(),
482543 )),
483− _ => Some(ctx.nouns.sig.clone()),
544+ _ => Ok(ctx.nouns.sig.clone()),
484545 }
485546};
486547
487548static SNAG: Jet = |_ctx, n| {
488− let (a, list) = n.as_cell().unwrap();
549+ let (a, list) = n.as_cell().ok_or(TTanks::new())?;
489550
490− list.list_iter().nth(a.as_u32().unwrap() as usize)
551+ list.list_iter()
552+ .nth(a.as_u32().unwrap() as usize)
553+ .cloned()
554+ .ok_or(TTanks::new())
491555};
492556
493557static SNIP: Jet = |_ctx, n| {
494− Some(Noun::list_refs(
558+ Ok(Noun::list_refs(
495559 n.list_iter()
496560 .collect::<Vec<_>>()
497561 .iter()
498562 .rev()
499563 .skip(1)
500564 .rev()
565+ .cloned()
501566 .cloned(),
502567 ))
503568};
504569
505570static SNOC: Jet = |_ctx, n| {
506− let (list, b) = n.as_cell().unwrap();
571+ let (list, b) = n.as_cell().ok_or(TTanks::new())?;
507572
508− Some(Noun::list_refs(
573+ Ok(Noun::list_refs(
509574 list.list_iter()
510575 .chain(once(b))
511576 .collect::<Vec<_>>()
512577 .iter()
578+ .cloned()
513579 .cloned(),
514580 ))
515581};
@@ -533,52 +599,62 @@ static SNOC: Jet = |_ctx, n| {
533599// };
534600
535601static SPIN: Jet = |ctx, n| {
536− let (list, b) = n.as_cell().unwrap();
537− let (mut acc, gate) = b.as_cell().unwrap();
602+ let (list, b) = n.as_cell().ok_or(TTanks::new())?;
603+ let (acc, gate) = b.as_cell().ok_or(TTanks::new())?;
538604
539605 let mut res = Vec::new();
606+ let mut acc = acc.clone();
540607
541608 for n in list.list_iter() {
542− let (el, new_acc) = slam(ctx, gate.clone(), cell(n, acc))?.as_cell().unwrap();
543− acc = new_acc;
544− res.push(el);
609+ let foo = slam_pulled_gate(ctx, gate, &cell(&n, &acc))?;
610+ let (el, new_acc) = foo.as_cell().ok_or(TTanks::new())?;
611+ acc = new_acc.clone();
612+ res.push(el.clone());
545613 }
546614
547− Some(cell(Noun::list_refs(res.iter().cloned()), acc))
615+ Ok(cell(&Noun::list_refs(res.iter().cloned()), &acc))
548616};
549617
550618static SPUN: Jet = |ctx, n| {
551− let (list, gate) = n.as_cell().unwrap();
619+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
552620
553621 let mut res = Vec::new();
554− let mut acc = gate.clone().gate_sample().unwrap().as_cell().unwrap().1;
622+ let mut acc = gate
623+ .gate_sample()
624+ .ok_or(TTanks::new())?
625+ .as_cell()
626+ .ok_or(TTanks::new())?
627+ .1
628+ .clone();
555629
556630 for n in list.list_iter() {
557− let (el, new_acc) = slam(ctx, gate.clone(), cell(n, acc))?.as_cell().unwrap();
558− acc = new_acc;
559− res.push(el);
631+ let foo = slam_pulled_gate(ctx, gate, &cell(&n, &acc))?;
632+ let (el, new_acc) = foo.as_cell().ok_or(TTanks::new())?;
633+ acc = new_acc.clone();
634+ res.push(el.clone());
560635 }
561636
562− Some(cell(Noun::list_refs(res.iter().cloned()), acc))
637+ Ok(cell(&Noun::list_refs(res.iter().cloned()), &acc))
563638};
564639
565640static TURN: Jet = |ctx, n| {
566− let (list, gate) = n.as_cell().unwrap();
567− Some(Noun::list_refs(
568− traverse_iter_option(list.list_iter().map(|x| slam(ctx, gate.clone(), x)))?
641+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
642+ Ok(Noun::list_refs(
643+ traverse_iter_result(list.list_iter().map(|x| slam_pulled_gate(ctx, gate, x)))?
569644 .iter()
570645 .cloned(),
571646 ))
572647};
573648
574649static WELD: Jet = |_ctx, n| {
575− let (a, b) = n.as_cell().unwrap();
650+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
576651
577− Some(Noun::list_refs(
652+ Ok(Noun::list_refs(
578653 a.list_iter()
579654 .chain(b.list_iter())
580655 .collect::<Vec<_>>()
581656 .iter()
657+ .cloned()
582658 .cloned(),
583659 ))
584660};
@@ -586,110 +662,103 @@ static WELD: Jet = |_ctx, n| {
586662static WELP: Jet = WELD;
587663
588664static ZING: Jet = |_ctx, n| {
589− Some(Noun::list_refs(
665+ Ok(Noun::list_refs(
590666 n.list_iter()
591667 .map(|l| l.list_iter())
592668 .flatten()
593669 .collect::<Vec<_>>()
594670 .iter()
671+ .cloned()
595672 .cloned(),
596673 ))
597674};
598675
599676static BEX: Jet = |ctx, n| {
600− Some(Rc::new(Noun::Atom(
677+ Ok(Rc::new(Noun::Atom(
601678 &ctx.big_uints.one << n.as_u32().unwrap(),
602679 )))
603680};
604681
605682static END: Jet = |ctx, n| {
606− let (a, b) = n.as_cell().unwrap();
607− let bite = a.as_bite().unwrap();
683+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
684+ let bite = a.as_bite();
608685
609686 let bits = bite.bits();
610687
611688 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
612689
613− Some(Rc::new(Noun::Atom(mask & b.as_atom().unwrap())))
690+ Ok(Rc::new(Noun::Atom(
691+ mask & b.as_atom().ok_or(TTanks::new())?,
692+ )))
614693};
615694
616695static CAN: Jet = |ctx, n| {
617− let (a, b) = n.as_cell().unwrap();
696+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
618697 let bloq = a.as_u32().unwrap();
619698 let bloq_ = 2u32.pow(bloq);
620699
621− let atom: Atom =
622− b.list_iter()
623− .collect::<Vec<_>>()
624− .iter()
625− .rfold(ctx.big_uints.zero.clone(), |acc, next| {
626− let (p, q) = next.as_cell().unwrap();
627− let step = p.as_u32().unwrap();
628− let bits = bloq_ * step;
629− let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
630−
631− (acc << bits) | (mask & q.as_atom().unwrap())
632− });
633− Some(Rc::new(Noun::Atom(atom)))
700+ let atom: Option<Atom> = b.list_iter().collect::<Vec<_>>().iter().rfold(
701+ Some(ctx.big_uints.zero.clone()),
702+ |acc, next| {
703+ let (p, q) = next.as_cell()?;
704+ let step = p.as_u32().unwrap();
705+ let bits = bloq_ * step;
706+ let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
707+
708+ Some((acc? << bits) | (mask & q.as_atom()?))
709+ },
710+ );
711+ Ok(Rc::new(Noun::Atom(atom.ok_or(TTanks::new())?)))
634712};
635713
636714static CAT: Jet = |_ctx, n| {
637− let (bloq, b) = n.as_cell().unwrap();
638− let (b, c) = b.as_cell().unwrap();
715+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
716+ let (b, c) = b.as_cell().ok_or(TTanks::new())?;
639717
640− let bloq = bloq.as_u32().unwrap();
641− let b = b.as_atom().unwrap();
642− let c = c.as_atom().unwrap();
718+ let bloq = bloq.as_u32().ok_or(TTanks::new())?;
719+ let b = b.as_atom().ok_or(TTanks::new())?;
720+ let c = c.as_atom().ok_or(TTanks::new())?;
643721
644− Some(Rc::new(Noun::Atom(
645− (c << (met(bloq, b.clone()) * 2u32.pow(bloq))) | b,
722+ Ok(Rc::new(Noun::Atom(
723+ (c << (met(bloq, &b) * 2u32.pow(bloq))) | b,
646724 )))
647725};
648726
649727static MET: Jet = |_ctx, n| {
650− let (bloq, b) = n.as_cell().unwrap();
651− let b: Atom = b.as_atom().unwrap().clone();
728+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
729+ let b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
652730 let bloq = bloq.as_u32().unwrap();
653731
654− Some(Rc::new(Noun::from_u32(met(bloq, b))))
732+ Ok(Rc::new(Noun::from_u32(met(bloq, &b))))
655733};
656734
657−fn met(bloq: u32, mut a: Atom) -> u32 {
658− let bits = 2u32.pow(bloq);
659−
660− let mut c = 0;
661−
662− while a > Atom::ZERO {
663− a = a >> bits;
664− c += 1;
665− }
666−
667− c
735+fn met(bloq: u32, a: &Atom) -> u32 {
736+ (a.bits() as u32).div_ceil(2u32.pow(bloq))
668737}
669738
670739static CUT: Jet = |ctx, n| {
671− let (a, b) = n.as_cell().unwrap();
672− let (b, d) = b.as_cell().unwrap();
673− let (b, c) = b.as_cell().unwrap();
740+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
741+ let (b, d) = b.as_cell().ok_or(TTanks::new())?;
742+ let (b, c) = b.as_cell().ok_or(TTanks::new())?;
674743
675744 let bits = 2u32.pow(a.as_u32().unwrap());
676745
677746 let mask = (&ctx.big_uints.one << (bits * c.as_u32().unwrap())) - &ctx.big_uints.one;
678747
679− Some(Rc::new(Noun::Atom(
680− (d.as_atom().unwrap() >> (bits * b.as_u32().unwrap())) & mask,
748+ Ok(Rc::new(Noun::Atom(
749+ (d.as_atom().ok_or(TTanks::new())? >> (bits * b.as_u32().unwrap())) & mask,
681750 )))
682751};
683752
684753static FIL: Jet = |ctx, n| {
685− let (a, b) = n.as_cell().unwrap();
686− let (b, c) = b.as_cell().unwrap();
754+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
755+ let (b, c) = b.as_cell().ok_or(TTanks::new())?;
687756
688757 let bits = 2u32.pow(a.as_u32().unwrap());
689758
690759 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
691760
692− let src = c.as_atom().unwrap() & mask;
761+ let src = c.as_atom().ok_or(TTanks::new())? & mask;
693762
694763 let mut target = ctx.big_uints.zero.clone();
695764
@@ -697,45 +766,45 @@ static FIL: Jet = |ctx, n| {
697766 target = (target << bits) | &src;
698767 }
699768
700− Some(Rc::new(Noun::Atom(target)))
769+ Ok(Rc::new(Noun::Atom(target)))
701770};
702771
703772static LSH: Jet = |_ctx, n| {
704− let (a, b) = n.as_cell().unwrap();
705− let a = a.as_bite().unwrap();
706− let b = b.as_atom().unwrap();
773+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
774+ let a = a.as_bite();
775+ let b = b.as_atom().ok_or(TTanks::new())?;
707776
708− Some(Rc::new(Noun::Atom(b << a.bits())))
777+ Ok(Rc::new(Noun::Atom(b << a.bits())))
709778};
710779
711780static RSH: Jet = |_ctx, n| {
712− let (a, b) = n.as_cell().unwrap();
713− let a = a.as_bite().unwrap();
714− let b = b.as_atom().unwrap();
781+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
782+ let a = a.as_bite();
783+ let b = b.as_atom().ok_or(TTanks::new())?;
715784
716− Some(Rc::new(Noun::Atom(b >> a.bits())))
785+ Ok(Rc::new(Noun::Atom(b >> a.bits())))
717786};
718787
719−static RAP: Jet = |ctx, n| {
720− let (bloq, b) = n.as_cell().unwrap();
788+pub static RAP: Jet = |ctx, n| {
789+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
721790 let bloq = bloq.as_u32().unwrap();
722791 let bits = 2u32.pow(bloq);
723792
724793 let mut target = ctx.big_uints.zero.clone();
725794
726795 for el in b.list_iter().collect::<Vec<_>>().iter().rev() {
727− let el = el.as_atom().unwrap();
796+ let el = el.as_atom().ok_or(TTanks::new())?;
728797 if el != &ctx.big_uints.zero {
729− target = (target << (bits * met(bloq, el.clone()))) | el;
798+ target = (target << (bits * met(bloq, &el))) | el;
730799 }
731800 }
732801
733− Some(Rc::new(Noun::Atom(target)))
802+ Ok(Rc::new(Noun::Atom(target)))
734803};
735804
736805static REP: Jet = |ctx, n| {
737− let (bite, b) = n.as_cell().unwrap();
738− let bite = bite.as_bite().unwrap();
806+ let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
807+ let bite = bite.as_bite();
739808
740809 let bits = bite.bits();
741810 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -743,18 +812,18 @@ static REP: Jet = |ctx, n| {
743812 let mut target = ctx.big_uints.zero.clone();
744813
745814 for el in b.list_iter().collect::<Vec<_>>().iter().rev() {
746− target = (target << bits) | (el.as_atom().unwrap() & &mask);
815+ target = (target << bits) | (el.as_atom().ok_or(TTanks::new())? & &mask);
747816 }
748817
749− Some(Rc::new(Noun::Atom(target)))
818+ Ok(Rc::new(Noun::Atom(target)))
750819};
751820
752821static REV: Jet = |ctx, n| {
753− let (bloq, b) = n.as_cell().unwrap();
754− let (len, dat) = b.as_cell().unwrap();
822+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
823+ let (len, dat) = b.as_cell().ok_or(TTanks::new())?;
755824 let bloq = bloq.as_u32().unwrap();
756825 let len = len.as_u32().unwrap();
757− let mut dat: Atom = dat.as_atom().unwrap().clone();
826+ let mut dat: Atom = dat.as_atom().ok_or(TTanks::new())?.clone();
758827
759828 let bits = 2u32.pow(bloq);
760829 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -766,13 +835,13 @@ static REV: Jet = |ctx, n| {
766835 dat = dat >> bits;
767836 }
768837
769− Some(Rc::new(Noun::Atom(target)))
838+ Ok(Rc::new(Noun::Atom(target)))
770839};
771840
772841static RIP: Jet = |ctx, n| {
773− let (bite, b) = n.as_cell().unwrap();
774− let bite = bite.as_bite().unwrap();
775− let mut b: Atom = b.as_atom().unwrap().clone();
842+ let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
843+ let bite = bite.as_bite();
844+ let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
776845
777846 let bits = bite.bits();
778847 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -784,15 +853,15 @@ static RIP: Jet = |ctx, n| {
784853 b = b >> bits;
785854 }
786855
787− Some(Noun::list_refs(target.iter().cloned()))
856+ Ok(Noun::list_refs(target.iter().cloned()))
788857};
789858
790859static RUN: Jet = |ctx, n| {
791− let (bite, b) = n.as_cell().unwrap();
792− let (b, gate) = b.as_cell().unwrap();
860+ let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
861+ let (b, gate) = b.as_cell().ok_or(TTanks::new())?;
793862
794− let bite = bite.as_bite().unwrap();
795− let mut b: Atom = b.as_atom().unwrap().clone();
863+ let bite = bite.as_bite();
864+ let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
796865
797866 let bits = bite.bits();
798867 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -801,22 +870,22 @@ static RUN: Jet = |ctx, n| {
801870
802871 while b > ctx.big_uints.zero {
803872 target = (target << bits)
804− | ((*slam(ctx, gate.clone(), Rc::new(Noun::Atom(&mask & &b)))?)
873+ | ((*slam_pulled_gate(ctx, gate, &Rc::new(Noun::Atom(&mask & &b)))?)
805874 .as_atom()
806− .unwrap()
875+ .ok_or(TTanks::new())?
807876 & &mask);
808877 b = b >> bits;
809878 }
810879
811− Some(Rc::new(Noun::Atom(target)))
880+ Ok(Rc::new(Noun::Atom(target)))
812881};
813882
814883static RUT: Jet = |ctx, n| {
815− let (bite, b) = n.as_cell().unwrap();
816− let (b, gate) = b.as_cell().unwrap();
884+ let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
885+ let (b, gate) = b.as_cell().ok_or(TTanks::new())?;
817886
818− let bite = bite.as_bite().unwrap();
819− let mut b: Atom = b.as_atom().unwrap().clone();
887+ let bite = bite.as_bite();
888+ let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
820889
821890 let bits = bite.bits();
822891 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -825,24 +894,24 @@ static RUT: Jet = |ctx, n| {
825894
826895 while b > ctx.big_uints.zero {
827896 target.push(
828− (*slam(ctx, gate.clone(), Rc::new(Noun::Atom(&mask & &b)))?)
897+ (*slam_pulled_gate(ctx, gate, &Rc::new(Noun::Atom(&mask & &b)))?)
829898 .as_atom()
830− .unwrap()
899+ .ok_or(TTanks::new())?
831900 & &mask,
832901 );
833902 b = b >> bits;
834903 }
835904
836− Some(Noun::list(target.iter().cloned().map(Noun::Atom)))
905+ Ok(Noun::list(target.iter().cloned().map(Noun::Atom)))
837906};
838907
839908static SEW: Jet = |ctx, n| {
840− let (a, b) = n.as_cell().unwrap();
841− let (b, recipient) = b.as_cell().unwrap();
842− let (sew_start, c) = b.as_cell().unwrap();
843− let (number_of_blocks, donor) = c.as_cell().unwrap();
844− let recipient = recipient.as_atom().unwrap();
845− let donor = donor.as_atom().unwrap();
909+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
910+ let (b, recipient) = b.as_cell().ok_or(TTanks::new())?;
911+ let (sew_start, c) = b.as_cell().ok_or(TTanks::new())?;
912+ let (number_of_blocks, donor) = c.as_cell().ok_or(TTanks::new())?;
913+ let recipient = recipient.as_atom().ok_or(TTanks::new())?;
914+ let donor = donor.as_atom().ok_or(TTanks::new())?;
846915
847916 let bloq = a.as_u32().unwrap();
848917 let bits = 2u32.pow(bloq);
@@ -854,16 +923,16 @@ static SEW: Jet = |ctx, n| {
854923
855924 let target = (recipient ^ apendix) | (donor & mask);
856925
857− Some(Rc::new(Noun::Atom(target)))
926+ Ok(Rc::new(Noun::Atom(target)))
858927};
859928
860929static SWP: Jet = |ctx, n| {
861− let (bloq, b) = n.as_cell().unwrap();
930+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
862931 let bloq = bloq.as_u32().unwrap();
863932 let bits = 2u32.pow(bloq);
864933 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
865934
866− let mut source = b.as_atom().unwrap().clone();
935+ let mut source = b.as_atom().ok_or(TTanks::new())?.clone();
867936 let mut target = ctx.big_uints.zero.clone();
868937
869938 while source > ctx.big_uints.zero {
@@ -871,11 +940,11 @@ static SWP: Jet = |ctx, n| {
871940 source = source >> bits;
872941 }
873942
874− Some(Rc::new(Noun::Atom(target)))
943+ Ok(Rc::new(Noun::Atom(target)))
875944};
876945
877946static XEB: Jet = |_ctx, n| {
878− let mut a = n.as_atom().unwrap().clone();
947+ let mut a = n.as_atom().ok_or(TTanks::new())?.clone();
879948
880949 let mut c = 0;
881950
@@ -884,7 +953,7 @@ static XEB: Jet = |_ctx, n| {
884953 c += 1;
885954 }
886955
887− Some(Rc::new(Noun::from_u32(c)))
956+ Ok(Rc::new(Noun::from_u32(c)))
888957};
889958
890959static CON: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a | b);
@@ -892,14 +961,310 @@ static DIS: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a & b);
892961static MIX: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a ^ b);
893962
894963static NOT: Jet = |ctx, n| {
895− let (a, b) = n.as_cell().unwrap();
896− let (b, c) = b.as_cell().unwrap();
964+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
965+ let (b, c) = b.as_cell().ok_or(TTanks::new())?;
897966
898967 let bloq = a.as_u32().unwrap();
899968 let bits = 2u32.pow(bloq);
900969 let mask = (&ctx.big_uints.one << (bits * b.as_u32().unwrap())) - &ctx.big_uints.one;
901970
902− let target = c.as_atom().unwrap() ^ &mask;
971+ let target = c.as_atom().ok_or(TTanks::new())? ^ &mask;
972+
973+ Ok(Rc::new(Noun::Atom(target)))
974+};
903975
904− Some(Rc::new(Noun::Atom(target)))
976+static LAST: Jet = |_ctx, n| {
977+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
978+ let a = a.as_hair().ok_or(TTanks::new())?;
979+ let b = b.as_hair().ok_or(TTanks::new())?;
980+ Ok(Noun::from_hair(last(&a, &b)))
905981};
982+
983+fn last<'a>(a: &'a Hair, b: &'a Hair) -> &'a Hair {
984+ if a.line == b.line {
985+ if a.column > b.column {
986+ a
987+ } else {
988+ b
989+ }
990+ } else {
991+ if a.line > b.line {
992+ a
993+ } else {
994+ b
995+ }
996+ }
997+}
998+
999+static TRIP: Jet = |_ctx, n| {
1000+ let a = n.as_atom().ok_or(TTanks::new())?;
1001+ Ok(Noun::list(
1002+ a.to_bytes_le().iter().map(|b| Noun::from_u32(*b as u32)),
1003+ ))
1004+};
1005+
1006+static MUK: Jet = |_ctx, n| {
1007+ let (seed, len) = n.as_cell().ok_or(TTanks::new())?;
1008+ let (len, key) = len.as_cell().ok_or(TTanks::new())?;
1009+ let seed = seed.as_u32().ok_or(TTanks::new())?;
1010+ let len = len.as_u32().ok_or(TTanks::new())?;
1011+ let key = key.as_atom().ok_or(TTanks::new())?;
1012+
1013+ Ok(Rc::new(Noun::from_u32(muk(seed, len, key))))
1014+};
1015+
1016+static AOR: Jet = |ctx, n| {
1017+ let (a, b) = n.as_cell().ok_or(EMPTY_TANKS)?;
1018+
1019+ if a == b {
1020+ Ok(ctx.nouns.y.clone())
1021+ } else {
1022+ match (a.borrow(), b.borrow()) {
1023+ (Noun::Cell { .. }, Noun::Atom(_)) => Ok(ctx.nouns.n.clone()),
1024+ (Noun::Cell { p: a_p, q: a_q, .. }, Noun::Cell { p: b_p, q: b_q, .. }) => {
1025+ if a_p == b_p {
1026+ AOR(ctx, &cell(a_q, b_q))
1027+ } else {
1028+ AOR(ctx, &cell(a_p, b_p))
1029+ }
1030+ }
1031+ (Noun::Atom(_), Noun::Cell { .. }) => Ok(ctx.nouns.y.clone()),
1032+ (Noun::Atom(a), Noun::Atom(b)) => {
1033+ let a = a.to_bytes_le();
1034+ let b = b.to_bytes_le();
1035+
1036+ let mut i = 0;
1037+ loop {
1038+ let c = a.get(i).unwrap_or(&0);
1039+ let d = b.get(i).unwrap_or(&0);
1040+
1041+ if a[0] == b[0] {
1042+ i += 1;
1043+ } else {
1044+ if c < d {
1045+ return Ok(ctx.nouns.y.clone());
1046+ } else {
1047+ return Ok(ctx.nouns.n.clone());
1048+ }
1049+ }
1050+ }
1051+ }
1052+ }
1053+ }
1054+};
1055+
1056+static DOR: Jet = |ctx, n| {
1057+ let (a, b) = n.as_cell().ok_or(EMPTY_TANKS)?;
1058+
1059+ if a == b {
1060+ Ok(ctx.nouns.y.clone())
1061+ } else {
1062+ match (a.borrow(), b.borrow()) {
1063+ (Noun::Cell { .. }, Noun::Atom(_)) => Ok(ctx.nouns.n.clone()),
1064+ (Noun::Cell { p: a_p, q: a_q, .. }, Noun::Cell { p: b_p, q: b_q, .. }) => {
1065+ if a_p == b_p {
1066+ DOR(ctx, &cell(a_q, b_q))
1067+ } else {
1068+ DOR(ctx, &cell(a_p, b_p))
1069+ }
1070+ }
1071+ (Noun::Atom(_), Noun::Cell { .. }) => Ok(ctx.nouns.y.clone()),
1072+ (Noun::Atom(a), Noun::Atom(b)) => {
1073+ if a < b {
1074+ Ok(ctx.nouns.y.clone())
1075+ } else {
1076+ Ok(ctx.nouns.n.clone())
1077+ }
1078+ }
1079+ }
1080+ }
1081+};
1082+
1083+static GOR: Jet = |ctx, n| {
1084+ let (a, b) = n.as_cell().ok_or(EMPTY_TANKS)?;
1085+ let c = a.mug();
1086+ let d = b.mug();
1087+
1088+ if c == d {
1089+ DOR(ctx, n)
1090+ } else {
1091+ if c < d {
1092+ Ok(ctx.nouns.y.clone())
1093+ } else {
1094+ Ok(ctx.nouns.n.clone())
1095+ }
1096+ }
1097+};
1098+
1099+static GOR_PAIR: fn(&mut InterpreterContext, &Rc<Noun>, &Rc<Noun>) -> Result<bool, TTanks> =
1100+ |ctx, a, b| {
1101+ let c = a.mug();
1102+ let d = b.mug();
1103+
1104+ if c == d {
1105+ Ok(DOR(ctx, &(a.clone(), b.clone()).as_noun())? == ctx.nouns.y)
1106+ } else {
1107+ Ok(c < d)
1108+ }
1109+ };
1110+
1111+static MOR: Jet = |ctx, n| {
1112+ let (a, b) = n.as_cell().ok_or(EMPTY_TANKS)?;
1113+ let c = Noun::from_u32(a.mug()).mug();
1114+ let d = Noun::from_u32(b.mug()).mug();
1115+
1116+ if c == d {
1117+ DOR(ctx, n)
1118+ } else {
1119+ if c < d {
1120+ Ok(ctx.nouns.y.clone())
1121+ } else {
1122+ Ok(ctx.nouns.n.clone())
1123+ }
1124+ }
1125+};
1126+
1127+static LOOK: Jet = |ctx, n| {
1128+ let (cog, dab) = n.as_cell().ok_or(EMPTY_TANKS)?;
1129+ LOOK_PAIR(ctx, Atom::new(vec![1]), cog, dab)
1130+};
1131+
1132+static LOOK_PAIR: fn(
1133+ &mut InterpreterContext,
1134+ Atom,
1135+ &Rc<Noun>,
1136+ &Rc<Noun>,
1137+) -> Result<Rc<Noun>, TTanks> = |ctx, axe, cog, dab| {
1138+ if dab.is_sig() {
1139+ Ok(ctx.nouns.sig.clone())
1140+ } else {
1141+ let (node, b, c) = dab.tuple_3().ok_or(EMPTY_TANKS)?;
1142+ let l = b;
1143+ let r = c;
1144+ let (p, q) = node.as_cell().ok_or(EMPTY_TANKS)?;
1145+ if b.is_sig() && c.is_sig() {
1146+ if cog == p {
1147+ Ok((ctx.nouns.sig.clone(), Noun::Atom(axe), q.clone()).as_noun())
1148+ } else {
1149+ Ok(ctx.nouns.sig.clone())
1150+ }
1151+ } else if b.is_sig() {
1152+ if cog == p {
1153+ Ok((ctx.nouns.sig.clone(), PEG_U32(&axe, 2), q.clone()).as_noun())
1154+ } else if GOR_PAIR(ctx, cog, p)? {
1155+ Ok(ctx.nouns.sig.clone())
1156+ } else {
1157+ LOOK_PAIR(ctx, PEG_U32(&axe, 3), cog, r)
1158+ }
1159+ } else if c.is_sig() {
1160+ if cog == p {
1161+ Ok((ctx.nouns.sig.clone(), PEG_U32(&axe, 2), q.clone()).as_noun())
1162+ } else if GOR_PAIR(ctx, cog, p)? {
1163+ LOOK_PAIR(ctx, PEG_U32(&axe, 3), cog, l)
1164+ } else {
1165+ Ok(ctx.nouns.sig.clone())
1166+ }
1167+ } else {
1168+ if cog == p {
1169+ Ok((ctx.nouns.sig.clone(), PEG_U32(&axe, 2), q.clone()).as_noun())
1170+ } else if GOR_PAIR(ctx, cog, p)? {
1171+ LOOK_PAIR(ctx, PEG_U32(&axe, 6), cog, l)
1172+ } else {
1173+ LOOK_PAIR(ctx, PEG_U32(&axe, 7), cog, r)
1174+ }
1175+ }
1176+ }
1177+};
1178+
1179+static JUST: DoubleJet = |ctx, n, m| {
1180+ let char = n.as_atom()?;
1181+ let nail = m.as_nail()?;
1182+ if *nail.rest == ctx.nouns.sig {
1183+ Some(fail(nail).as_noun())
1184+ } else {
1185+ let (i, _) = nail.rest.as_cell()?;
1186+ let i = i.as_atom()?;
1187+ if i == char {
1188+ Some(next(nail)?.as_noun())
1189+ } else {
1190+ Some(fail(nail).as_noun())
1191+ }
1192+ }
1193+};
1194+
1195+// static STIR: DoubleJet = |ctx, n, m| {
1196+// let (rud, raq) = n.as_cell()?;
1197+// let (raq, fel) = raq.as_cell()?;
1198+// let tub = m.as_nail()?;
1199+
1200+// let mut lef = Vec::new();
1201+// let mut vex = slam(ctx, fel, tub)?.as;
1202+// if vex.
1203+// };
1204+
1205+fn next<'a>(nail: Nail<'a>) -> Option<Edge<'a>> {
1206+ if **nail.rest == Noun::SIG {
1207+ Some(fail(nail))
1208+ } else {
1209+ let (i, t) = nail.rest.as_cell()?;
1210+ let zac = lust(i.as_atom()?.clone(), nail.hair);
1211+ // cell(zac, cell(Rc::new(Noun::SIG), cell(i, cell(zac, t))))
1212+ Some(Edge {
1213+ hair: zac.clone(),
1214+ result: Some((i, Nail { hair: zac, rest: t })),
1215+ })
1216+ }
1217+}
1218+
1219+fn lust(char: Atom, hair: Hair) -> Hair {
1220+ if char == Atom::from_slice(&vec![10]) {
1221+ Hair {
1222+ line: hair.line + 1,
1223+ column: 1,
1224+ }
1225+ } else {
1226+ Hair {
1227+ line: hair.line,
1228+ column: hair.column + 1,
1229+ }
1230+ }
1231+}
1232+
1233+fn fail(nail: Nail) -> Edge {
1234+ Edge {
1235+ hair: nail.hair,
1236+ result: None,
1237+ }
1238+}
1239+
1240+const MUG: Jet = |__ctx, n| Ok(Rc::new(Noun::from_u32(n.mug())));
1241+
1242+pub fn mum(syd: u32, fal: u32, key: &Atom) -> u32 {
1243+ let wyd = met(3, &key);
1244+ let mut i = 0;
1245+ loop {
1246+ if i == 8 {
1247+ break fal;
1248+ } else {
1249+ let haz = muk(syd, wyd, &key);
1250+ let ham = (haz >> 31) ^ (haz & !(1 << 31));
1251+ if ham == 0 {
1252+ i += 1;
1253+ continue;
1254+ } else {
1255+ break ham;
1256+ }
1257+ }
1258+ }
1259+}
1260+
1261+fn muk(seed: u32, len: u32, key: &Atom) -> u32 {
1262+ let key: Vec<_> = key
1263+ .to_bytes_le()
1264+ .iter()
1265+ .take(len as usize)
1266+ .cloned()
1267+ .collect();
1268+
1269+ murmur3_32(&mut &*key, seed).unwrap()
1270+}