@@ -1,18 +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, Bite, Noun},
12+ interpreter::{slam_pulled_gate, InterpreterContext, TTanks, EMPTY_TANKS},
13+ noun::{self, cell, AsNoun, Atom, Edge, Hair, Nail, Noun},
1314};
1415
16+fn traverse_iter_result<E: Clone, T: Clone, I: Iterator<Item = Result<T, E>>>(
17+ xs: I,
18+) -> Result<Vec<T>, E> {
19+ let mut target: Vec<T> = Vec::new();
20+
21+ for x in xs {
22+ target.push(x.clone()?)
23+ }
24+
25+ Ok(target)
26+}
27+
1528pub 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+}
1637
1738pub fn generate_jets() -> Jets {
1839 BTreeMap::from([
@@ -54,7 +75,7 @@ pub fn generate_jets() -> Jets {
5475 (288515703007942177334798811660651439897, SNAG),
5576 (322006565952434408151902864454572452802, SNIP),
5677 (290837622185731774795798043954046795930, SNOC),
57− (255402796382159268271460433298209603428, SORT),
78+ // (255402796382159268271460433298209603428, SORT),
5879 (10111398404342329752608067595798409804, SPIN),
5980 (209194119090564757355985847956576215234, SPUN),
6081 (103985097318911737222583881947453560061, TURN),
@@ -68,43 +89,82 @@ pub fn generate_jets() -> Jets {
6889 (194217032002582779752566874231896746840, MET),
6990 (132848439781269254342687684309700447927, CUT),
7091 (184331043431916214773639930303095454137, FIL),
92+ (104452959965816676316166435675758878521, LSH),
93+ (84358434946425438379820219100952030132, RSH),
94+ (49642221456321333759873032692286222867, RAP),
95+ (92956425869648916777812729456192604084, REP),
96+ (302196507237993702819920888576650809366, REV),
97+ (111192034817574564051316537756194881830, RIP),
98+ (194882429025651072335997865399571359986, RUN),
99+ (52890757765966568893620799383929397067, RUT),
100+ (189837220965666741450798472864087835815, SEW),
101+ (122271149828189266412416527758198690539, SWP),
102+ (315388312266248574424227833154020891850, XEB),
103+ (26880808488368366377851132561579207892, CON),
104+ (311027486926441687148059942599447850754, DIS),
105+ (330927609077697663248483044495963838437, MIX),
106+ (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),
71116 ])
72117}
73118
74−pub type Jet = fn(ctx: &InterpreterContext, Rc<Noun>) -> 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>>;
75121
76−static BINARY_ATOM: fn(Rc<Noun>, fn(&Atom, &Atom) -> Atom) -> Rc<Noun> =
77− |n: Rc<Noun>, f: fn(&Atom, &Atom) -> Atom| {
78− let Noun::Cell { p, q, .. } = (*n).clone() else {
79− panic!()
80− };
81− Rc::new(Noun::Atom(f(p.as_atom().unwrap(), q.as_atom().unwrap())))
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+ ))))
82129 };
83130
84−static BINARY_ATOM_LOOB: fn(&InterpreterContext, Rc<Noun>, fn(&Atom, &Atom) -> bool) -> Rc<Noun> =
85− |ctx: &InterpreterContext, n: Rc<Noun>, f: fn(&Atom, &Atom) -> bool| {
86− let Noun::Cell { p, q, .. } = (*n).clone() else {
87− panic!()
88− };
89−
90− if f(p.as_atom().unwrap(), q.as_atom().unwrap()) {
91− ctx.nouns.sig.clone()
131+static BINARY_ATOM_LOOB: fn(
132+ &InterpreterContext,
133+ &Rc<Noun>,
134+ fn(&Atom, &Atom) -> bool,
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())
92144 } else {
93− ctx.nouns.one.clone()
145+ Ok(ctx.nouns.one.clone())
94146 }
95147 };
96148
97−static BINARY_ATOM_PAIR: fn(Rc<Noun>, fn(&Atom, &Atom) -> (Atom, Atom)) -> Rc<Noun> =
98− |n: Rc<Noun>, f: fn(&Atom, &Atom) -> (Atom, Atom)| {
99− let Noun::Cell { p, q, .. } = (*n).clone() else {
100− panic!()
101− };
102− let (a, b) = f(p.as_atom().unwrap(), q.as_atom().unwrap());
103− cell(Rc::new(Noun::Atom(a)), Rc::new(Noun::Atom(b)))
104− };
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))))
160+};
105161
106162static ADD: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a + b);
107−static DEC: Jet = |_ctx, n| 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+};
108168static DVR: Jet = |_ctx, n| BINARY_ATOM_PAIR(n, |a, b| a.div_rem(&b));
109169static DIV: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a / b);
110170static GTE: Jet = |ctx, n| BINARY_ATOM_LOOB(ctx, n, |a, b| a >= b);
@@ -118,40 +178,42 @@ static MUL: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a * b);
118178static SUB: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a - b);
119179
120180static CAP: Jet = |ctx, n| {
121− let Noun::Atom(n) = (*n).clone() else {
122− panic!()
123− };
124− CAP_ATOM(ctx, n)
181+ let n = n.as_atom().ok_or(TTanks::new())?;
182+ CAP_ATOM(ctx, n.clone())
125183};
126−static CAP_ATOM: fn(&InterpreterContext, Atom) -> Rc<Noun> = |ctx, n: Atom| {
184+
185+static CAP_ATOM: fn(&InterpreterContext, Atom) -> Result<Rc<Noun>, TTanks> = |ctx, n: Atom| {
127186 let mut n_iter = n.iter_u32_digits();
128187
129188 match n_iter.len() {
130− 0 => panic!(),
189+ 0 => Err(TTanks::new()),
131190 1 => CAP_U32(ctx, n_iter.next().unwrap()),
132191 _ => CAP_ATOM(ctx, n >> 1),
133192 }
134193};
135−static CAP_U32: fn(ctx: &InterpreterContext, u32) -> Rc<Noun> = |ctx, n| match n {
136− 0 | 1 => panic!(),
137− 2 => ctx.nouns.two.clone(),
138− 3 => 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()),
139198 n => CAP_U32(ctx, n >> 1),
140199};
141200
142201static MAS: Jet = |ctx, n| {
143− let Noun::Atom(n) = (*n).clone() else {
144− panic!()
145− };
146− 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+ )))
147206};
148−static MAS_ATOM: fn(&InterpreterContext, Atom) -> Atom = |ctx, n| {
207+static MAS_ATOM: fn(&InterpreterContext, Atom) -> Option<Atom> = |ctx, n| {
149208 let mut n_iter = n.iter_u32_digits();
150209
151210 match n_iter.len() {
152− 0 => panic!(),
153− 1 => Atom::new(vec![MAS_U32(n_iter.next().unwrap())]),
154− _ => (&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)),
155217 }
156218};
157219static MAS_U32: fn(u32) -> u32 = |n| match n {
@@ -161,26 +223,24 @@ static MAS_U32: fn(u32) -> u32 = |n| match n {
161223};
162224
163225static PEG: Jet = |ctx, n| {
164− let Noun::Cell { p: a, q: b, .. } = (*n).clone() else {
165− panic!()
166− };
226+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
167227
168− let a = a.as_atom().unwrap();
169− 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())?;
170230
171231 if *a == Atom::ZERO {
172− panic!()
232+ return Err(TTanks::new());
173233 };
174234
175− Rc::new(Noun::Atom(PEG_ATOM(ctx, a, b.clone())))
235+ Ok(Rc::new(Noun::Atom(PEG_ATOM(ctx, a, b.clone())?)))
176236};
177−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| {
178238 let mut b_iter = b.iter_u32_digits();
179239
180240 match b_iter.len() {
181− 0 => panic!(),
182− 1 => PEG_U32(a, b_iter.next().unwrap()),
183− _ => (&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)),
184244 }
185245};
186246static PEG_U32: fn(&Atom, u32) -> Atom = |a, b| match b {
@@ -192,12 +252,12 @@ static PEG_U32: fn(&Atom, u32) -> Atom = |a, b| match b {
192252};
193253
194254static FAND: Jet = |ctx, n| {
195− let (nedl, hstk) = n.as_cell().unwrap();
255+ let (nedl, hstk) = n.as_cell().ok_or(TTanks::new())?;
196256 if nedl.is_sig() || hstk.is_sig() {
197− return ctx.nouns.sig.clone();
257+ return Ok(ctx.nouns.sig.clone());
198258 }
199259
200− let nedl: Vec<Rc<Noun>> = nedl.list_iter().collect();
260+ let nedl: Vec<&Rc<Noun>> = nedl.list_iter().collect();
201261
202262 let mut result: Vec<u32> = Vec::new();
203263
@@ -218,16 +278,16 @@ static FAND: Jet = |ctx, n| {
218278 inner_iter = iter.clone();
219279 }
220280
221− Noun::list(result.iter().map(|a| Noun::from_u32(*a)))
281+ Ok(Noun::list(result.iter().map(|a| Noun::from_u32(*a))))
222282};
223283
224284static FIND: Jet = |ctx, n| {
225− let (nedl, hstk) = n.as_cell().unwrap();
285+ let (nedl, hstk) = n.as_cell().ok_or(TTanks::new())?;
226286 if nedl.is_sig() || hstk.is_sig() {
227− return ctx.nouns.sig.clone();
287+ return Ok(ctx.nouns.sig.clone());
228288 }
229289
230− let nedl: Vec<Rc<Noun>> = nedl.list_iter().collect();
290+ let nedl: Vec<&Rc<Noun>> = nedl.list_iter().collect();
231291
232292 let mut iter = zip(0.., hstk.list_iter());
233293
@@ -240,28 +300,28 @@ static FIND: Jet = |ctx, n| {
240300 .collect::<Vec<_>>()
241301 == nedl
242302 {
243− return Rc::new(Noun::from_u32(i)).unit();
303+ return Ok(Rc::new(Noun::from_u32(i)).unit());
244304 }
245305
246306 inner_iter = iter.clone();
247307 }
248308
249− return ctx.nouns.sig.clone();
309+ return Ok(ctx.nouns.sig.clone());
250310};
251311
252312static FLOP: Jet = |ctx, n| {
253− n.list_iter()
254− .fold(ctx.nouns.sig.clone(), |tail, head| cell(head, tail))
313+ Ok(n.list_iter()
314+ .fold(ctx.nouns.sig.clone(), |tail, head| cell(&head, &tail)))
255315};
256316
257317static GULF: Jet = |_ctx, n| {
258− let (from, to) = n.as_cell().unwrap();
318+ let (from, to) = n.as_cell().ok_or(TTanks::new())?;
259319
260− let mut from = (*from.as_atom().unwrap()).clone();
261− 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();
262322
263323 if from > to {
264− panic!()
324+ return Err(TTanks::new());
265325 }
266326
267327 let mut tmp = Vec::new();
@@ -271,384 +331,434 @@ static GULF: Jet = |_ctx, n| {
271331 from += 1u32;
272332 }
273333
274− Noun::list(tmp.iter().rev().map(|a| Noun::Atom(a.clone())))
334+ Ok(Noun::list(tmp.iter().rev().map(|a| Noun::Atom(a.clone()))))
275335};
276336
277337static INTO: Jet = |_ctx, n| {
278− let (a, b) = n.as_cell().unwrap();
279− 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())?;
280340
281− 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();
282342
283343 match b_iter.len() {
284− 0 => cell(c, a),
344+ 0 => Ok(cell(&c, &a)),
285345 1 => {
286346 let l = a.list_iter();
287347 let b = b_iter.next().unwrap() as usize;
288− Noun::list_refs(
348+ Ok(Noun::list_refs(
289349 l.clone()
290350 .take(b)
291351 .chain(once(c))
292352 .chain(l.skip(b))
293353 .collect::<Vec<_>>()
294354 .iter()
295− .map(|x| x.clone()),
296− )
355+ .cloned()
356+ .cloned(),
357+ ))
297358 }
298− _ => Noun::list_refs(
359+ _ => Ok(Noun::list_refs(
299360 a.list_iter()
300361 .chain(once(c))
301362 .collect::<Vec<_>>()
302363 .iter()
303− .map(|x| x.clone()),
304− ),
364+ .cloned()
365+ .cloned(),
366+ )),
305367 }
306368};
307369
308370static JOIN: Jet = |_ctx, n| {
309− let (sep, list) = n.as_cell().unwrap();
310− Noun::list_refs(
371+ let (sep, list) = n.as_cell().ok_or(TTanks::new())?;
372+ Ok(Noun::list_refs(
311373 list.list_iter()
312374 .intersperse(sep)
313375 .collect::<Vec<_>>()
314376 .iter()
315− .map(|x| x.clone()),
316− )
377+ .cloned()
378+ .cloned(),
379+ ))
317380};
318381
319−static LENT: Jet = |_ctx, n| Rc::new(Noun::from_u32(n.list_iter().fold(0u32, |l, _| l + 1)));
382+static LENT: Jet = |_ctx, n| {
383+ Ok(Rc::new(Noun::from_u32(
384+ n.list_iter().fold(0u32, |l, _| l + 1),
385+ )))
386+};
320387
321388static LEVY: Jet = |ctx, n| {
322− let (a, b) = n.as_cell().unwrap();
323− if a.list_iter()
324− .all(|n| slam(ctx, b.clone(), n) == ctx.nouns.y)
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)))?
391+ .iter()
392+ .all(|x| x.is_y())
325393 {
326− ctx.nouns.y.clone()
394+ Ok(ctx.nouns.y.clone())
327395 } else {
328− ctx.nouns.n.clone()
396+ Ok(ctx.nouns.n.clone())
329397 }
330398};
331399
332400static LIEN: Jet = |ctx, n| {
333− let (a, b) = n.as_cell().unwrap();
334− if a.list_iter()
335− .any(|n| slam(ctx, b.clone(), n) == ctx.nouns.y)
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)))?
403+ .iter()
404+ .any(|x| x.is_y())
336405 {
337− ctx.nouns.y.clone()
406+ Ok(ctx.nouns.y.clone())
338407 } else {
339− ctx.nouns.n.clone()
408+ Ok(ctx.nouns.n.clone())
340409 }
341410};
342411
343412static MURN: Jet = |ctx, n| {
344− let (a, b) = n.as_cell().unwrap();
413+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
345414
346− Noun::list_refs(
347− a.list_iter()
348− .filter_map(|n| slam(ctx, b.clone(), n).as_unit())
349− .collect::<Vec<_>>()
350− .iter()
351− .map(|x| x.clone()),
352− )
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()),
422+ ))
353423};
354424
355425static REAP: Jet = |_ctx, n| {
356− let (a, b) = n.as_cell().unwrap();
426+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
357427
358− 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+ )))
359432};
360433
361−static REAR: Jet = |_ctx, n| n.list_iter().last().unwrap();
434+static REAR: Jet = |_ctx, n| n.list_iter().last().ok_or(TTanks::new()).cloned();
362435
363436static REEL: Jet = |ctx, n| {
364− let (list, gate) = n.as_cell().unwrap();
437+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
365438
366439 list.list_iter().collect::<Vec<_>>().iter().rfold(
367− gate.clone().gate_sample().unwrap().as_cell().unwrap().1,
368− |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+ },
369451 )
370452};
371453
372454static ROLL: Jet = |ctx, n| {
373− let (list, gate) = n.as_cell().unwrap();
455+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
374456
375457 list.list_iter().fold(
376− gate.clone().gate_sample().unwrap().as_cell().unwrap().1,
377− |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+ },
378470 )
379471};
380472
381473static SCAG: Jet = |_ctx, n| {
382− let (a, b) = n.as_cell().unwrap();
474+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
383475
384− Noun::list_refs(
476+ Ok(Noun::list_refs(
385477 b.list_iter()
386478 .take(a.as_u32().unwrap() as usize)
387479 .collect::<Vec<_>>()
388480 .iter()
389− .map(|x| x.clone()),
390− )
481+ .cloned()
482+ .cloned(),
483+ ))
391484};
392485
393486static SKID: Jet = |ctx, n| {
394− let (list, gate) = n.as_cell().unwrap();
487+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
395488
396− let (ys, ns): (Vec<Rc<Noun>>, _) = list
397− .list_iter()
398− .partition(|n| slam(ctx, gate.clone(), n.clone()).is_y());
489+ let slammed_n = traverse_iter_result(
490+ list.list_iter()
491+ .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
492+ )?;
493+ let (ys, ns): (Vec<_>, _) = slammed_n.iter().partition(|(l, _)| l.is_y());
399494
400− cell(
401− Noun::list_refs(ys.iter().cloned()),
402− Noun::list_refs(ns.iter().cloned()),
403− )
495+ Ok(cell(
496+ &Noun::list_refs(ys.iter().map(|(_, x)| (*x).clone())),
497+ &Noun::list_refs(ns.iter().map(|(_, x)| (*x).clone())),
498+ ))
404499};
405500
406501static SKIM: Jet = |ctx, n| {
407− let (list, gate) = n.as_cell().unwrap();
502+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
408503
409− Noun::list_refs(
410− list.list_iter()
411− .filter(|n| slam(ctx, gate.clone(), n.clone()).is_y())
412− .collect::<Vec<_>>()
413− .iter()
414− .cloned(),
415− )
504+ Ok(Noun::list_refs(
505+ traverse_iter_result(
506+ list.list_iter()
507+ .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
508+ )?
509+ .iter()
510+ .filter(|(l, _)| l.is_y())
511+ .map(|(_, x)| (*x).clone()),
512+ ))
416513};
417514
418515static SKIP: Jet = |ctx, n| {
419− let (list, gate) = n.as_cell().unwrap();
516+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
420517
421− Noun::list_refs(
422− list.list_iter()
423− .filter(|n| slam(ctx, gate.clone(), n.clone()).is_n())
424− .collect::<Vec<_>>()
425− .iter()
426− .cloned(),
427− )
518+ Ok(Noun::list_refs(
519+ traverse_iter_result(
520+ list.list_iter()
521+ .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
522+ )?
523+ .iter()
524+ .filter(|(l, _)| l.is_y())
525+ .map(|(_, x)| (*x).clone()),
526+ ))
428527};
429528
430529static SLAG: Jet = |ctx, n| {
431− let (a, list) = n.as_cell().unwrap();
530+ let (a, list) = n.as_cell().ok_or(TTanks::new())?;
432531
433− 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();
434533
435534 match a_iter.len() {
436− 0 => list,
437− 1 => Noun::list_refs(
535+ 0 => Ok(list.clone()),
536+ 1 => Ok(Noun::list_refs(
438537 list.list_iter()
439538 .skip(a_iter.next().unwrap() as usize)
440539 .collect::<Vec<_>>()
441540 .iter()
541+ .cloned()
442542 .cloned(),
443− ),
444− _ => ctx.nouns.sig.clone(),
543+ )),
544+ _ => Ok(ctx.nouns.sig.clone()),
445545 }
446546};
447547
448548static SNAG: Jet = |_ctx, n| {
449− let (a, list) = n.as_cell().unwrap();
549+ let (a, list) = n.as_cell().ok_or(TTanks::new())?;
450550
451− list.list_iter().nth(a.as_u32().unwrap() as usize).unwrap()
551+ list.list_iter()
552+ .nth(a.as_u32().unwrap() as usize)
553+ .cloned()
554+ .ok_or(TTanks::new())
452555};
453556
454557static SNIP: Jet = |_ctx, n| {
455− Noun::list_refs(
558+ Ok(Noun::list_refs(
456559 n.list_iter()
457560 .collect::<Vec<_>>()
458561 .iter()
459562 .rev()
460563 .skip(1)
461564 .rev()
565+ .cloned()
462566 .cloned(),
463− )
567+ ))
464568};
465569
466570static SNOC: Jet = |_ctx, n| {
467− let (list, b) = n.as_cell().unwrap();
571+ let (list, b) = n.as_cell().ok_or(TTanks::new())?;
468572
469− Noun::list_refs(
573+ Ok(Noun::list_refs(
470574 list.list_iter()
471575 .chain(once(b))
472576 .collect::<Vec<_>>()
473577 .iter()
578+ .cloned()
474579 .cloned(),
475− )
580+ ))
476581};
477582
478−static SORT: Jet = |ctx, n| {
479− let (list, lth) = n.as_cell().unwrap();
583+// static SORT: Jet = |ctx, n| {
584+// let (list, lth) = n.as_cell().unwrap();
480585
481− let mut v: Vec<_> = list.list_iter().collect();
586+// let mut v: Vec<_> = list.list_iter().collect();
482587
483− v.sort_by(|a, b| {
484− if slam(ctx, lth.clone(), cell(a.clone(), b.clone())).is_y() {
485− Ordering::Less
486− } else if slam(ctx, lth.clone(), cell(b.clone(), a.clone())).is_y() {
487− Ordering::Greater
488− } else {
489− Ordering::Equal
490− }
491− });
588+// v.sort_by(|a, b| {
589+// if slam(ctx, lth.clone(), cell(a.clone(), b.clone())) == ctx.nouns.some_y {
590+// Ordering::Less
591+// } else if slam(ctx, lth.clone(), cell(b.clone(), a.clone())) == ctx.nouns.some_y {
592+// Ordering::Greater
593+// } else {
594+// Ordering::Equal
595+// }
596+// });
492597
493− Noun::list_refs(v.iter().cloned())
494−};
598+// Some(Noun::list_refs(v.iter().cloned()))
599+// };
495600
496601static SPIN: Jet = |ctx, n| {
497− let (list, b) = n.as_cell().unwrap();
498− 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())?;
499604
500605 let mut res = Vec::new();
606+ let mut acc = acc.clone();
501607
502608 for n in list.list_iter() {
503− let (el, new_acc) = slam(ctx, gate.clone(), cell(n, acc)).as_cell().unwrap();
504− acc = new_acc;
505− 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());
506613 }
507614
508− cell(Noun::list_refs(res.iter().cloned()), acc)
615+ Ok(cell(&Noun::list_refs(res.iter().cloned()), &acc))
509616};
510617
511618static SPUN: Jet = |ctx, n| {
512− let (list, gate) = n.as_cell().unwrap();
619+ let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
513620
514621 let mut res = Vec::new();
515− 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();
516629
517630 for n in list.list_iter() {
518− let (el, new_acc) = slam(ctx, gate.clone(), cell(n, acc)).as_cell().unwrap();
519− acc = new_acc;
520− 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());
521635 }
522636
523− cell(Noun::list_refs(res.iter().cloned()), acc)
637+ Ok(cell(&Noun::list_refs(res.iter().cloned()), &acc))
524638};
525639
526640static TURN: Jet = |ctx, n| {
527− let (list, gate) = n.as_cell().unwrap();
528− Noun::list_refs(
529− list.list_iter()
530− .map(|x| slam(ctx, gate.clone(), x))
531− .collect::<Vec<_>>()
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)))?
532644 .iter()
533645 .cloned(),
534− )
646+ ))
535647};
536648
537649static WELD: Jet = |_ctx, n| {
538− let (a, b) = n.as_cell().unwrap();
650+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
539651
540− Noun::list_refs(
652+ Ok(Noun::list_refs(
541653 a.list_iter()
542654 .chain(b.list_iter())
543655 .collect::<Vec<_>>()
544656 .iter()
657+ .cloned()
545658 .cloned(),
546− )
659+ ))
547660};
548661
549662static WELP: Jet = WELD;
550663
551664static ZING: Jet = |_ctx, n| {
552− Noun::list_refs(
665+ Ok(Noun::list_refs(
553666 n.list_iter()
554667 .map(|l| l.list_iter())
555668 .flatten()
556669 .collect::<Vec<_>>()
557670 .iter()
671+ .cloned()
558672 .cloned(),
559− )
673+ ))
560674};
561675
562−static BEX: Jet = |ctx, n| Rc::new(Noun::Atom(&ctx.big_uints.one << n.as_u32().unwrap()));
676+static BEX: Jet = |ctx, n| {
677+ Ok(Rc::new(Noun::Atom(
678+ &ctx.big_uints.one << n.as_u32().unwrap(),
679+ )))
680+};
563681
564682static END: Jet = |ctx, n| {
565− let (a, b) = n.as_cell().unwrap();
566− let bite = a.as_bite().unwrap();
683+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
684+ let bite = a.as_bite();
567685
568686 let bits = bite.bits();
569687
570688 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
571689
572− 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+ )))
573693};
574694
575695static CAN: Jet = |ctx, n| {
576− let (a, b) = n.as_cell().unwrap();
696+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
577697 let bloq = a.as_u32().unwrap();
578698 let bloq_ = 2u32.pow(bloq);
579699
580− let atom: Atom =
581− b.list_iter()
582− .collect::<Vec<_>>()
583− .iter()
584− .rfold(ctx.big_uints.zero.clone(), |acc, next| {
585− let (p, q) = next.as_cell().unwrap();
586− let step = p.as_u32().unwrap();
587− let bits = bloq_ * step;
588− let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
589−
590− (acc << bits) | (mask & q.as_atom().unwrap())
591− });
592− 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())?)))
593712};
594713
595714static CAT: Jet = |_ctx, n| {
596− let (bloq, b) = n.as_cell().unwrap();
597− 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())?;
598717
599− let bloq = bloq.as_u32().unwrap();
600− let b = b.as_atom().unwrap();
601− 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())?;
602721
603− Rc::new(Noun::Atom(
604− (c << (met(bloq, b.clone()) * 2u32.pow(bloq))) | b,
605− ))
722+ Ok(Rc::new(Noun::Atom(
723+ (c << (met(bloq, &b) * 2u32.pow(bloq))) | b,
724+ )))
606725};
607726
608727static MET: Jet = |_ctx, n| {
609− let (bloq, b) = n.as_cell().unwrap();
610− 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();
611730 let bloq = bloq.as_u32().unwrap();
612731
613− Rc::new(Noun::from_u32(met(bloq, b)))
732+ Ok(Rc::new(Noun::from_u32(met(bloq, &b))))
614733};
615734
616−fn met(bloq: u32, mut a: Atom) -> u32 {
617− let bits = 2u32.pow(bloq);
618−
619− let mut c = 0;
620−
621− while a > Atom::ZERO {
622− a = a >> bits;
623− c += 1;
624− }
625−
626− c
735+fn met(bloq: u32, a: &Atom) -> u32 {
736+ (a.bits() as u32).div_ceil(2u32.pow(bloq))
627737}
628738
629739static CUT: Jet = |ctx, n| {
630− let (a, b) = n.as_cell().unwrap();
631− let (b, d) = b.as_cell().unwrap();
632− 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())?;
633743
634744 let bits = 2u32.pow(a.as_u32().unwrap());
635745
636746 let mask = (&ctx.big_uints.one << (bits * c.as_u32().unwrap())) - &ctx.big_uints.one;
637747
638− Rc::new(Noun::Atom(
639− (d.as_atom().unwrap() >> (bits * b.as_u32().unwrap())) & mask,
640− ))
748+ Ok(Rc::new(Noun::Atom(
749+ (d.as_atom().ok_or(TTanks::new())? >> (bits * b.as_u32().unwrap())) & mask,
750+ )))
641751};
642752
643753static FIL: Jet = |ctx, n| {
644− let (a, b) = n.as_cell().unwrap();
645− 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())?;
646756
647757 let bits = 2u32.pow(a.as_u32().unwrap());
648758
649759 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
650760
651− let src = c.as_atom().unwrap() & mask;
761+ let src = c.as_atom().ok_or(TTanks::new())? & mask;
652762
653763 let mut target = ctx.big_uints.zero.clone();
654764
@@ -656,5 +766,505 @@ static FIL: Jet = |ctx, n| {
656766 target = (target << bits) | &src;
657767 }
658768
659− Rc::new(Noun::Atom(target))
769+ Ok(Rc::new(Noun::Atom(target)))
770+};
771+
772+static LSH: Jet = |_ctx, n| {
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())?;
776+
777+ Ok(Rc::new(Noun::Atom(b << a.bits())))
778+};
779+
780+static RSH: Jet = |_ctx, n| {
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())?;
784+
785+ Ok(Rc::new(Noun::Atom(b >> a.bits())))
786+};
787+
788+pub static RAP: Jet = |ctx, n| {
789+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
790+ let bloq = bloq.as_u32().unwrap();
791+ let bits = 2u32.pow(bloq);
792+
793+ let mut target = ctx.big_uints.zero.clone();
794+
795+ for el in b.list_iter().collect::<Vec<_>>().iter().rev() {
796+ let el = el.as_atom().ok_or(TTanks::new())?;
797+ if el != &ctx.big_uints.zero {
798+ target = (target << (bits * met(bloq, &el))) | el;
799+ }
800+ }
801+
802+ Ok(Rc::new(Noun::Atom(target)))
660803};
804+
805+static REP: Jet = |ctx, n| {
806+ let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
807+ let bite = bite.as_bite();
808+
809+ let bits = bite.bits();
810+ let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
811+
812+ let mut target = ctx.big_uints.zero.clone();
813+
814+ for el in b.list_iter().collect::<Vec<_>>().iter().rev() {
815+ target = (target << bits) | (el.as_atom().ok_or(TTanks::new())? & &mask);
816+ }
817+
818+ Ok(Rc::new(Noun::Atom(target)))
819+};
820+
821+static REV: Jet = |ctx, n| {
822+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
823+ let (len, dat) = b.as_cell().ok_or(TTanks::new())?;
824+ let bloq = bloq.as_u32().unwrap();
825+ let len = len.as_u32().unwrap();
826+ let mut dat: Atom = dat.as_atom().ok_or(TTanks::new())?.clone();
827+
828+ let bits = 2u32.pow(bloq);
829+ let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
830+
831+ let mut target = ctx.big_uints.zero.clone();
832+
833+ for _ in 0..len {
834+ target = (target << bits) | (&mask & &dat);
835+ dat = dat >> bits;
836+ }
837+
838+ Ok(Rc::new(Noun::Atom(target)))
839+};
840+
841+static RIP: Jet = |ctx, n| {
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();
845+
846+ let bits = bite.bits();
847+ let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
848+
849+ let mut target = Vec::new();
850+
851+ while b > ctx.big_uints.zero {
852+ target.push(Rc::new(Noun::Atom(&mask & &b)));
853+ b = b >> bits;
854+ }
855+
856+ Ok(Noun::list_refs(target.iter().cloned()))
857+};
858+
859+static RUN: Jet = |ctx, n| {
860+ let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
861+ let (b, gate) = b.as_cell().ok_or(TTanks::new())?;
862+
863+ let bite = bite.as_bite();
864+ let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
865+
866+ let bits = bite.bits();
867+ let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
868+
869+ let mut target = ctx.big_uints.zero.clone();
870+
871+ while b > ctx.big_uints.zero {
872+ target = (target << bits)
873+ | ((*slam_pulled_gate(ctx, gate, &Rc::new(Noun::Atom(&mask & &b)))?)
874+ .as_atom()
875+ .ok_or(TTanks::new())?
876+ & &mask);
877+ b = b >> bits;
878+ }
879+
880+ Ok(Rc::new(Noun::Atom(target)))
881+};
882+
883+static RUT: Jet = |ctx, n| {
884+ let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
885+ let (b, gate) = b.as_cell().ok_or(TTanks::new())?;
886+
887+ let bite = bite.as_bite();
888+ let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
889+
890+ let bits = bite.bits();
891+ let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
892+
893+ let mut target = Vec::new();
894+
895+ while b > ctx.big_uints.zero {
896+ target.push(
897+ (*slam_pulled_gate(ctx, gate, &Rc::new(Noun::Atom(&mask & &b)))?)
898+ .as_atom()
899+ .ok_or(TTanks::new())?
900+ & &mask,
901+ );
902+ b = b >> bits;
903+ }
904+
905+ Ok(Noun::list(target.iter().cloned().map(Noun::Atom)))
906+};
907+
908+static SEW: Jet = |ctx, n| {
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())?;
915+
916+ let bloq = a.as_u32().unwrap();
917+ let bits = 2u32.pow(bloq);
918+ let mask = ((&ctx.big_uints.one << (bits * number_of_blocks.as_u32().unwrap()))
919+ - &ctx.big_uints.one)
920+ << (sew_start.as_u32().unwrap() * bits);
921+
922+ let apendix = recipient & &mask;
923+
924+ let target = (recipient ^ apendix) | (donor & mask);
925+
926+ Ok(Rc::new(Noun::Atom(target)))
927+};
928+
929+static SWP: Jet = |ctx, n| {
930+ let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
931+ let bloq = bloq.as_u32().unwrap();
932+ let bits = 2u32.pow(bloq);
933+ let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
934+
935+ let mut source = b.as_atom().ok_or(TTanks::new())?.clone();
936+ let mut target = ctx.big_uints.zero.clone();
937+
938+ while source > ctx.big_uints.zero {
939+ target = (target << bits) | (&source & &mask);
940+ source = source >> bits;
941+ }
942+
943+ Ok(Rc::new(Noun::Atom(target)))
944+};
945+
946+static XEB: Jet = |_ctx, n| {
947+ let mut a = n.as_atom().ok_or(TTanks::new())?.clone();
948+
949+ let mut c = 0;
950+
951+ while a > Atom::ZERO {
952+ a = a >> 1;
953+ c += 1;
954+ }
955+
956+ Ok(Rc::new(Noun::from_u32(c)))
957+};
958+
959+static CON: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a | b);
960+static DIS: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a & b);
961+static MIX: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a ^ b);
962+
963+static NOT: Jet = |ctx, n| {
964+ let (a, b) = n.as_cell().ok_or(TTanks::new())?;
965+ let (b, c) = b.as_cell().ok_or(TTanks::new())?;
966+
967+ let bloq = a.as_u32().unwrap();
968+ let bits = 2u32.pow(bloq);
969+ let mask = (&ctx.big_uints.one << (bits * b.as_u32().unwrap())) - &ctx.big_uints.one;
970+
971+ let target = c.as_atom().ok_or(TTanks::new())? ^ &mask;
972+
973+ Ok(Rc::new(Noun::Atom(target)))
974+};
975+
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)))
981+};
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+}