@@ -1,39 +1,27 @@
11use core::panic;
2−use murmur3::murmur3_32;
32use num_integer::Integer;
43use std::{
5− borrow::Borrow,
64 collections::BTreeMap,
75 iter::{once, repeat_n, zip},
86 rc::Rc,
97};
108
119use crate::{
12− interpreter::{slam_pulled_gate, InterpreterContext, TTanks, EMPTY_TANKS},
13− noun::{self, cell, AsNoun, Atom, Edge, Hair, Nail, Noun},
10+ interpreter::{slam, InterpreterContext},
11+ noun::{self, cell, Atom, Noun},
1412};
1513
16−fn traverse_iter_result<E: Clone, T: Clone, I: Iterator<Item = Result<T, E>>>(
17− xs: I,
18−) -> Result<Vec<T>, E> {
14+fn traverse_iter_option<T: Clone, I: Iterator<Item = Option<T>>>(xs: I) -> Option<Vec<T>> {
1915 let mut target: Vec<T> = Vec::new();
2016
2117 for x in xs {
2218 target.push(x.clone()?)
2319 }
2420
25− Ok(target)
21+ Some(target)
2622}
2723
2824pub 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−}
3725
3826pub fn generate_jets() -> Jets {
3927 BTreeMap::from([
@@ -104,67 +92,41 @@ pub fn generate_jets() -> Jets {
10492 (311027486926441687148059942599447850754, DIS),
10593 (330927609077697663248483044495963838437, MIX),
10694 (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),
11695 ])
11796}
11897
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>>;
98+pub type Jet = fn(ctx: &InterpreterContext, Rc<Noun>) -> Option<Rc<Noun>>;
12199
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− ))))
100+static BINARY_ATOM: fn(Rc<Noun>, fn(&Atom, &Atom) -> Atom) -> Option<Rc<Noun>> =
101+ |n: Rc<Noun>, f: fn(&Atom, &Atom) -> Atom| {
102+ let (p, q) = n.as_cell()?;
103+ Some(Rc::new(Noun::Atom(f(p.as_atom()?, q.as_atom()?))))
129104 };
130105
131106static BINARY_ATOM_LOOB: fn(
132107 &InterpreterContext,
133− &Rc<Noun>,
108+ Rc<Noun>,
134109 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())
144− } else {
145− Ok(ctx.nouns.one.clone())
146− }
147− };
110+) -> Option<Rc<Noun>> = |ctx: &InterpreterContext, n: Rc<Noun>, f: fn(&Atom, &Atom) -> bool| {
111+ let (p, q) = n.as_cell()?;
148112
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))))
113+ if f(p.as_atom()?, q.as_atom()?) {
114+ Some(ctx.nouns.sig.clone())
115+ } else {
116+ Some(ctx.nouns.one.clone())
117+ }
160118};
161119
120+static BINARY_ATOM_PAIR: fn(Rc<Noun>, fn(&Atom, &Atom) -> (Atom, Atom)) -> Option<Rc<Noun>> =
121+ |n: Rc<Noun>, f: fn(&Atom, &Atom) -> (Atom, Atom)| {
122+ let (p, q) = n.as_cell()?;
123+
124+ let (a, b) = f(p.as_atom()?, q.as_atom()?);
125+ Some(cell(Rc::new(Noun::Atom(a)), Rc::new(Noun::Atom(b))))
126+ };
127+
162128static ADD: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a + b);
163−static DEC: Jet = |_ctx, n| {
164− Ok(Rc::new(Noun::Atom(
165− n.as_atom().ok_or(TTanks::new())? - 1u32,
166− )))
167−};
129+static DEC: Jet = |_ctx, n| Some(Rc::new(Noun::Atom(n.as_atom()? - 1u32)));
168130static DVR: Jet = |_ctx, n| BINARY_ATOM_PAIR(n, |a, b| a.div_rem(&b));
169131static DIV: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a / b);
170132static GTE: Jet = |ctx, n| BINARY_ATOM_LOOB(ctx, n, |a, b| a >= b);
@@ -178,31 +140,29 @@ static MUL: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a * b);
178140static SUB: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a - b);
179141
180142static CAP: Jet = |ctx, n| {
181− let n = n.as_atom().ok_or(TTanks::new())?;
143+ let n = n.as_atom()?;
182144 CAP_ATOM(ctx, n.clone())
183145};
184146
185−static CAP_ATOM: fn(&InterpreterContext, Atom) -> Result<Rc<Noun>, TTanks> = |ctx, n: Atom| {
147+static CAP_ATOM: fn(&InterpreterContext, Atom) -> Option<Rc<Noun>> = |ctx, n: Atom| {
186148 let mut n_iter = n.iter_u32_digits();
187149
188150 match n_iter.len() {
189− 0 => Err(TTanks::new()),
151+ 0 => None,
190152 1 => CAP_U32(ctx, n_iter.next().unwrap()),
191153 _ => CAP_ATOM(ctx, n >> 1),
192154 }
193155};
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()),
156+static CAP_U32: fn(ctx: &InterpreterContext, u32) -> Option<Rc<Noun>> = |ctx, n| match n {
157+ 0 | 1 => None,
158+ 2 => Some(ctx.nouns.two.clone()),
159+ 3 => Some(ctx.nouns.three.clone()),
198160 n => CAP_U32(ctx, n >> 1),
199161};
200162
201163static MAS: Jet = |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− )))
164+ let n = n.as_atom()?;
165+ Some(Rc::new(Noun::Atom(MAS_ATOM(ctx, n.clone())?)))
206166};
207167static MAS_ATOM: fn(&InterpreterContext, Atom) -> Option<Atom> = |ctx, n| {
208168 let mut n_iter = n.iter_u32_digits();
@@ -223,24 +183,24 @@ static MAS_U32: fn(u32) -> u32 = |n| match n {
223183};
224184
225185static PEG: Jet = |ctx, n| {
226− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
186+ let (a, b) = n.as_cell()?;
227187
228− let a = a.as_atom().ok_or(TTanks::new())?;
229− let b = b.as_atom().ok_or(TTanks::new())?;
188+ let a = a.as_atom()?;
189+ let b = b.as_atom()?;
230190
231191 if *a == Atom::ZERO {
232− return Err(TTanks::new());
192+ return None;
233193 };
234194
235− Ok(Rc::new(Noun::Atom(PEG_ATOM(ctx, a, b.clone())?)))
195+ Some(Rc::new(Noun::Atom(PEG_ATOM(ctx, a, b.clone())?)))
236196};
237−static PEG_ATOM: fn(&InterpreterContext, &Atom, Atom) -> Result<Atom, TTanks> = |ctx, a, b| {
197+static PEG_ATOM: fn(&InterpreterContext, &Atom, Atom) -> Option<Atom> = |ctx, a, b| {
238198 let mut b_iter = b.iter_u32_digits();
239199
240200 match b_iter.len() {
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)),
201+ 0 => None,
202+ 1 => Some(PEG_U32(a, b_iter.next().unwrap())),
203+ _ => Some((&b & &ctx.big_uints.one) + (PEG_ATOM(ctx, a, b >> 1)? << 1)),
244204 }
245205};
246206static PEG_U32: fn(&Atom, u32) -> Atom = |a, b| match b {
@@ -252,12 +212,12 @@ static PEG_U32: fn(&Atom, u32) -> Atom = |a, b| match b {
252212};
253213
254214static FAND: Jet = |ctx, n| {
255− let (nedl, hstk) = n.as_cell().ok_or(TTanks::new())?;
215+ let (nedl, hstk) = n.as_cell()?;
256216 if nedl.is_sig() || hstk.is_sig() {
257− return Ok(ctx.nouns.sig.clone());
217+ return Some(ctx.nouns.sig.clone());
258218 }
259219
260− let nedl: Vec<&Rc<Noun>> = nedl.list_iter().collect();
220+ let nedl: Vec<Rc<Noun>> = nedl.list_iter().collect();
261221
262222 let mut result: Vec<u32> = Vec::new();
263223
@@ -278,16 +238,16 @@ static FAND: Jet = |ctx, n| {
278238 inner_iter = iter.clone();
279239 }
280240
281− Ok(Noun::list(result.iter().map(|a| Noun::from_u32(*a))))
241+ Some(Noun::list(result.iter().map(|a| Noun::from_u32(*a))))
282242};
283243
284244static FIND: Jet = |ctx, n| {
285− let (nedl, hstk) = n.as_cell().ok_or(TTanks::new())?;
245+ let (nedl, hstk) = n.as_cell()?;
286246 if nedl.is_sig() || hstk.is_sig() {
287− return Ok(ctx.nouns.sig.clone());
247+ return Some(ctx.nouns.sig.clone());
288248 }
289249
290− let nedl: Vec<&Rc<Noun>> = nedl.list_iter().collect();
250+ let nedl: Vec<Rc<Noun>> = nedl.list_iter().collect();
291251
292252 let mut iter = zip(0.., hstk.list_iter());
293253
@@ -300,28 +260,30 @@ static FIND: Jet = |ctx, n| {
300260 .collect::<Vec<_>>()
301261 == nedl
302262 {
303− return Ok(Rc::new(Noun::from_u32(i)).unit());
263+ return Some(Rc::new(Noun::from_u32(i)).unit());
304264 }
305265
306266 inner_iter = iter.clone();
307267 }
308268
309− return Ok(ctx.nouns.sig.clone());
269+ return Some(ctx.nouns.sig.clone());
310270};
311271
312272static FLOP: Jet = |ctx, n| {
313− Ok(n.list_iter()
314− .fold(ctx.nouns.sig.clone(), |tail, head| cell(&head, &tail)))
273+ Some(
274+ n.list_iter()
275+ .fold(ctx.nouns.sig.clone(), |tail, head| cell(head, tail)),
276+ )
315277};
316278
317279static GULF: Jet = |_ctx, n| {
318− let (from, to) = n.as_cell().ok_or(TTanks::new())?;
280+ let (from, to) = n.as_cell()?;
319281
320− let mut from = (*from.as_atom().ok_or(TTanks::new())?).clone();
321− let to = to.as_atom().ok_or(TTanks::new())?.clone();
282+ let mut from = (*from.as_atom()?).clone();
283+ let to = to.as_atom()?.clone();
322284
323285 if from > to {
324− return Err(TTanks::new());
286+ return None;
325287 }
326288
327289 let mut tmp = Vec::new();
@@ -331,251 +293,220 @@ static GULF: Jet = |_ctx, n| {
331293 from += 1u32;
332294 }
333295
334− Ok(Noun::list(tmp.iter().rev().map(|a| Noun::Atom(a.clone()))))
296+ Some(Noun::list(tmp.iter().rev().map(|a| Noun::Atom(a.clone()))))
335297};
336298
337299static INTO: Jet = |_ctx, n| {
338− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
339− let (b, c) = b.as_cell().ok_or(TTanks::new())?;
300+ let (a, b) = n.as_cell()?;
301+ let (b, c) = b.as_cell()?;
340302
341− let mut b_iter = b.as_atom().ok_or(TTanks::new())?.iter_u32_digits();
303+ let mut b_iter = b.as_atom()?.iter_u32_digits();
342304
343305 match b_iter.len() {
344− 0 => Ok(cell(&c, &a)),
306+ 0 => Some(cell(c, a)),
345307 1 => {
346308 let l = a.list_iter();
347309 let b = b_iter.next().unwrap() as usize;
348− Ok(Noun::list_refs(
310+ Some(Noun::list_refs(
349311 l.clone()
350312 .take(b)
351313 .chain(once(c))
352314 .chain(l.skip(b))
353315 .collect::<Vec<_>>()
354316 .iter()
355− .cloned()
356− .cloned(),
317+ .map(|x| x.clone()),
357318 ))
358319 }
359− _ => Ok(Noun::list_refs(
320+ _ => Some(Noun::list_refs(
360321 a.list_iter()
361322 .chain(once(c))
362323 .collect::<Vec<_>>()
363324 .iter()
364− .cloned()
365− .cloned(),
325+ .map(|x| x.clone()),
366326 )),
367327 }
368328};
369329
370330static JOIN: Jet = |_ctx, n| {
371− let (sep, list) = n.as_cell().ok_or(TTanks::new())?;
372− Ok(Noun::list_refs(
331+ let (sep, list) = n.as_cell()?;
332+ Some(Noun::list_refs(
373333 list.list_iter()
374334 .intersperse(sep)
375335 .collect::<Vec<_>>()
376336 .iter()
377− .cloned()
378337 .cloned(),
379338 ))
380339};
381340
382341static LENT: Jet = |_ctx, n| {
383− Ok(Rc::new(Noun::from_u32(
342+ Some(Rc::new(Noun::from_u32(
384343 n.list_iter().fold(0u32, |l, _| l + 1),
385344 )))
386345};
387346
388347static LEVY: Jet = |ctx, 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)))?
348+ let (a, b) = n.as_cell()?;
349+ if traverse_iter_option(a.list_iter().map(|n| slam(ctx, b.clone(), n)))?
391350 .iter()
392351 .all(|x| x.is_y())
393352 {
394− Ok(ctx.nouns.y.clone())
353+ Some(ctx.nouns.y.clone())
395354 } else {
396− Ok(ctx.nouns.n.clone())
355+ Some(ctx.nouns.n.clone())
397356 }
398357};
399358
400359static LIEN: Jet = |ctx, 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)))?
360+ let (a, b) = n.as_cell()?;
361+ if traverse_iter_option(a.list_iter().map(|n| slam(ctx, b.clone(), n)))?
403362 .iter()
404363 .any(|x| x.is_y())
405364 {
406− Ok(ctx.nouns.y.clone())
365+ Some(ctx.nouns.y.clone())
407366 } else {
408− Ok(ctx.nouns.n.clone())
367+ Some(ctx.nouns.n.clone())
409368 }
410369};
411370
412371static MURN: Jet = |ctx, n| {
413− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
372+ let (a, b) = n.as_cell()?;
414373
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()),
374+ Some(Noun::list_refs(
375+ a.list_iter()
376+ .filter_map(|n| slam(ctx, b.clone(), n)?.as_unit())
377+ .collect::<Vec<_>>()
378+ .iter()
379+ .map(|x| x.clone()),
422380 ))
423381};
424382
425383static REAP: Jet = |_ctx, n| {
426− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
384+ let (a, b) = n.as_cell()?;
427385
428− Ok(Noun::list_refs(repeat_n(
429− b.clone(),
430− a.as_u32().unwrap() as usize,
431− )))
386+ Some(Noun::list_refs(repeat_n(b, a.as_u32().unwrap() as usize)))
432387};
433388
434−static REAR: Jet = |_ctx, n| n.list_iter().last().ok_or(TTanks::new()).cloned();
389+static REAR: Jet = |_ctx, n| n.list_iter().last();
435390
436391static REEL: Jet = |ctx, n| {
437− let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
392+ let (list, gate) = n.as_cell()?;
438393
439394 list.list_iter().collect::<Vec<_>>().iter().rfold(
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− },
395+ Some(gate.clone().gate_sample()?.as_cell()?.1),
396+ |acc, next| slam(ctx, gate.clone(), cell(next.clone(), acc?)),
451397 )
452398};
453399
454400static ROLL: Jet = |ctx, n| {
455− let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
401+ let (list, gate) = n.as_cell()?;
456402
457403 list.list_iter().fold(
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− },
404+ Some(gate.clone().gate_sample()?.as_cell()?.1),
405+ |acc, next| slam(ctx, gate.clone(), cell(next.clone(), acc?)),
470406 )
471407};
472408
473409static SCAG: Jet = |_ctx, n| {
474− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
410+ let (a, b) = n.as_cell()?;
475411
476− Ok(Noun::list_refs(
412+ Some(Noun::list_refs(
477413 b.list_iter()
478414 .take(a.as_u32().unwrap() as usize)
479415 .collect::<Vec<_>>()
480416 .iter()
481− .cloned()
482− .cloned(),
417+ .map(|x| x.clone()),
483418 ))
484419};
485420
486421static SKID: Jet = |ctx, n| {
487− let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
422+ let (list, gate) = n.as_cell()?;
488423
489− let slammed_n = traverse_iter_result(
424+ let slammed_n = traverse_iter_option(
490425 list.list_iter()
491− .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
426+ .map(|n| Some((slam(ctx, gate.clone(), n.clone())?, n))),
492427 )?;
493428 let (ys, ns): (Vec<_>, _) = slammed_n.iter().partition(|(l, _)| l.is_y());
494429
495− Ok(cell(
496− &Noun::list_refs(ys.iter().map(|(_, x)| (*x).clone())),
497− &Noun::list_refs(ns.iter().map(|(_, x)| (*x).clone())),
430+ Some(cell(
431+ Noun::list_refs(ys.iter().map(|(_, x)| x).cloned()),
432+ Noun::list_refs(ns.iter().map(|(_, x)| x).cloned()),
498433 ))
499434};
500435
501436static SKIM: Jet = |ctx, n| {
502− let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
437+ let (list, gate) = n.as_cell()?;
503438
504− Ok(Noun::list_refs(
505− traverse_iter_result(
439+ Some(Noun::list_refs(
440+ traverse_iter_option(
506441 list.list_iter()
507− .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
442+ .map(|n| Some((slam(ctx, gate.clone(), n.clone())?, n))),
508443 )?
509444 .iter()
510445 .filter(|(l, _)| l.is_y())
511− .map(|(_, x)| (*x).clone()),
446+ .map(|(_, x)| x)
447+ .cloned(),
512448 ))
513449};
514450
515451static SKIP: Jet = |ctx, n| {
516− let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
452+ let (list, gate) = n.as_cell()?;
517453
518− Ok(Noun::list_refs(
519− traverse_iter_result(
454+ Some(Noun::list_refs(
455+ traverse_iter_option(
520456 list.list_iter()
521− .map(|n| Ok((slam_pulled_gate(ctx, gate, n)?, n))),
457+ .map(|n| Some((slam(ctx, gate.clone(), n.clone())?, n))),
522458 )?
523459 .iter()
524460 .filter(|(l, _)| l.is_y())
525− .map(|(_, x)| (*x).clone()),
461+ .map(|(_, x)| x)
462+ .cloned(),
526463 ))
527464};
528465
529466static SLAG: Jet = |ctx, n| {
530− let (a, list) = n.as_cell().ok_or(TTanks::new())?;
467+ let (a, list) = n.as_cell()?;
531468
532− let mut a_iter = a.as_atom().ok_or(TTanks::new())?.iter_u32_digits();
469+ let mut a_iter = a.as_atom()?.iter_u32_digits();
533470
534471 match a_iter.len() {
535− 0 => Ok(list.clone()),
536− 1 => Ok(Noun::list_refs(
472+ 0 => Some(list),
473+ 1 => Some(Noun::list_refs(
537474 list.list_iter()
538475 .skip(a_iter.next().unwrap() as usize)
539476 .collect::<Vec<_>>()
540477 .iter()
541− .cloned()
542478 .cloned(),
543479 )),
544− _ => Ok(ctx.nouns.sig.clone()),
480+ _ => Some(ctx.nouns.sig.clone()),
545481 }
546482};
547483
548484static SNAG: Jet = |_ctx, n| {
549− let (a, list) = n.as_cell().ok_or(TTanks::new())?;
485+ let (a, list) = n.as_cell()?;
550486
551− list.list_iter()
552− .nth(a.as_u32().unwrap() as usize)
553− .cloned()
554− .ok_or(TTanks::new())
487+ list.list_iter().nth(a.as_u32().unwrap() as usize)
555488};
556489
557490static SNIP: Jet = |_ctx, n| {
558− Ok(Noun::list_refs(
491+ Some(Noun::list_refs(
559492 n.list_iter()
560493 .collect::<Vec<_>>()
561494 .iter()
562495 .rev()
563496 .skip(1)
564497 .rev()
565− .cloned()
566498 .cloned(),
567499 ))
568500};
569501
570502static SNOC: Jet = |_ctx, n| {
571− let (list, b) = n.as_cell().ok_or(TTanks::new())?;
503+ let (list, b) = n.as_cell()?;
572504
573− Ok(Noun::list_refs(
505+ Some(Noun::list_refs(
574506 list.list_iter()
575507 .chain(once(b))
576508 .collect::<Vec<_>>()
577509 .iter()
578− .cloned()
579510 .cloned(),
580511 ))
581512};
@@ -599,62 +530,52 @@ static SNOC: Jet = |_ctx, n| {
599530// };
600531
601532static SPIN: Jet = |ctx, n| {
602− let (list, b) = n.as_cell().ok_or(TTanks::new())?;
603− let (acc, gate) = b.as_cell().ok_or(TTanks::new())?;
533+ let (list, b) = n.as_cell()?;
534+ let (mut acc, gate) = b.as_cell()?;
604535
605536 let mut res = Vec::new();
606− let mut acc = acc.clone();
607537
608538 for n in list.list_iter() {
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());
539+ let (el, new_acc) = slam(ctx, gate.clone(), cell(n, acc))?.as_cell()?;
540+ acc = new_acc;
541+ res.push(el);
613542 }
614543
615− Ok(cell(&Noun::list_refs(res.iter().cloned()), &acc))
544+ Some(cell(Noun::list_refs(res.iter().cloned()), acc))
616545};
617546
618547static SPUN: Jet = |ctx, n| {
619− let (list, gate) = n.as_cell().ok_or(TTanks::new())?;
548+ let (list, gate) = n.as_cell()?;
620549
621550 let mut res = Vec::new();
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();
551+ let mut acc = gate.clone().gate_sample()?.as_cell()?.1;
629552
630553 for n in list.list_iter() {
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());
554+ let (el, new_acc) = slam(ctx, gate.clone(), cell(n, acc))?.as_cell()?;
555+ acc = new_acc;
556+ res.push(el);
635557 }
636558
637− Ok(cell(&Noun::list_refs(res.iter().cloned()), &acc))
559+ Some(cell(Noun::list_refs(res.iter().cloned()), acc))
638560};
639561
640562static TURN: Jet = |ctx, n| {
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)))?
563+ let (list, gate) = n.as_cell()?;
564+ Some(Noun::list_refs(
565+ traverse_iter_option(list.list_iter().map(|x| slam(ctx, gate.clone(), x)))?
644566 .iter()
645567 .cloned(),
646568 ))
647569};
648570
649571static WELD: Jet = |_ctx, n| {
650− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
572+ let (a, b) = n.as_cell()?;
651573
652− Ok(Noun::list_refs(
574+ Some(Noun::list_refs(
653575 a.list_iter()
654576 .chain(b.list_iter())
655577 .collect::<Vec<_>>()
656578 .iter()
657− .cloned()
658579 .cloned(),
659580 ))
660581};
@@ -662,38 +583,35 @@ static WELD: Jet = |_ctx, n| {
662583static WELP: Jet = WELD;
663584
664585static ZING: Jet = |_ctx, n| {
665− Ok(Noun::list_refs(
586+ Some(Noun::list_refs(
666587 n.list_iter()
667588 .map(|l| l.list_iter())
668589 .flatten()
669590 .collect::<Vec<_>>()
670591 .iter()
671− .cloned()
672592 .cloned(),
673593 ))
674594};
675595
676596static BEX: Jet = |ctx, n| {
677− Ok(Rc::new(Noun::Atom(
597+ Some(Rc::new(Noun::Atom(
678598 &ctx.big_uints.one << n.as_u32().unwrap(),
679599 )))
680600};
681601
682602static END: Jet = |ctx, n| {
683− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
603+ let (a, b) = n.as_cell()?;
684604 let bite = a.as_bite();
685605
686606 let bits = bite.bits();
687607
688608 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
689609
690− Ok(Rc::new(Noun::Atom(
691− mask & b.as_atom().ok_or(TTanks::new())?,
692− )))
610+ Some(Rc::new(Noun::Atom(mask & b.as_atom()?)))
693611};
694612
695613static CAN: Jet = |ctx, n| {
696− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
614+ let (a, b) = n.as_cell()?;
697615 let bloq = a.as_u32().unwrap();
698616 let bloq_ = 2u32.pow(bloq);
699617
@@ -708,57 +626,66 @@ static CAN: Jet = |ctx, n| {
708626 Some((acc? << bits) | (mask & q.as_atom()?))
709627 },
710628 );
711− Ok(Rc::new(Noun::Atom(atom.ok_or(TTanks::new())?)))
629+ Some(Rc::new(Noun::Atom(atom?)))
712630};
713631
714632static CAT: Jet = |_ctx, n| {
715− let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
716− let (b, c) = b.as_cell().ok_or(TTanks::new())?;
633+ let (bloq, b) = n.as_cell()?;
634+ let (b, c) = b.as_cell()?;
717635
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())?;
636+ let bloq = bloq.as_u32()?;
637+ let b = b.as_atom()?;
638+ let c = c.as_atom()?;
721639
722− Ok(Rc::new(Noun::Atom(
723− (c << (met(bloq, &b) * 2u32.pow(bloq))) | b,
640+ Some(Rc::new(Noun::Atom(
641+ (c << (met(bloq, b.clone()) * 2u32.pow(bloq))) | b,
724642 )))
725643};
726644
727645static MET: Jet = |_ctx, n| {
728− let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
729− let b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
646+ let (bloq, b) = n.as_cell()?;
647+ let b: Atom = b.as_atom()?.clone();
730648 let bloq = bloq.as_u32().unwrap();
731649
732− Ok(Rc::new(Noun::from_u32(met(bloq, &b))))
650+ Some(Rc::new(Noun::from_u32(met(bloq, b))))
733651};
734652
735−fn met(bloq: u32, a: &Atom) -> u32 {
736− (a.bits() as u32).div_ceil(2u32.pow(bloq))
653+fn met(bloq: u32, mut a: Atom) -> u32 {
654+ let bits = 2u32.pow(bloq);
655+
656+ let mut c = 0;
657+
658+ while a > Atom::ZERO {
659+ a = a >> bits;
660+ c += 1;
661+ }
662+
663+ c
737664}
738665
739666static CUT: Jet = |ctx, n| {
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())?;
667+ let (a, b) = n.as_cell()?;
668+ let (b, d) = b.as_cell()?;
669+ let (b, c) = b.as_cell()?;
743670
744671 let bits = 2u32.pow(a.as_u32().unwrap());
745672
746673 let mask = (&ctx.big_uints.one << (bits * c.as_u32().unwrap())) - &ctx.big_uints.one;
747674
748− Ok(Rc::new(Noun::Atom(
749− (d.as_atom().ok_or(TTanks::new())? >> (bits * b.as_u32().unwrap())) & mask,
675+ Some(Rc::new(Noun::Atom(
676+ (d.as_atom()? >> (bits * b.as_u32().unwrap())) & mask,
750677 )))
751678};
752679
753680static FIL: Jet = |ctx, n| {
754− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
755− let (b, c) = b.as_cell().ok_or(TTanks::new())?;
681+ let (a, b) = n.as_cell()?;
682+ let (b, c) = b.as_cell()?;
756683
757684 let bits = 2u32.pow(a.as_u32().unwrap());
758685
759686 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
760687
761− let src = c.as_atom().ok_or(TTanks::new())? & mask;
688+ let src = c.as_atom()? & mask;
762689
763690 let mut target = ctx.big_uints.zero.clone();
764691
@@ -766,44 +693,44 @@ static FIL: Jet = |ctx, n| {
766693 target = (target << bits) | &src;
767694 }
768695
769− Ok(Rc::new(Noun::Atom(target)))
696+ Some(Rc::new(Noun::Atom(target)))
770697};
771698
772699static LSH: Jet = |_ctx, n| {
773− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
700+ let (a, b) = n.as_cell()?;
774701 let a = a.as_bite();
775− let b = b.as_atom().ok_or(TTanks::new())?;
702+ let b = b.as_atom()?;
776703
777− Ok(Rc::new(Noun::Atom(b << a.bits())))
704+ Some(Rc::new(Noun::Atom(b << a.bits())))
778705};
779706
780707static RSH: Jet = |_ctx, n| {
781− let (a, b) = n.as_cell().ok_or(TTanks::new())?;
708+ let (a, b) = n.as_cell()?;
782709 let a = a.as_bite();
783− let b = b.as_atom().ok_or(TTanks::new())?;
710+ let b = b.as_atom()?;
784711
785− Ok(Rc::new(Noun::Atom(b >> a.bits())))
712+ Some(Rc::new(Noun::Atom(b >> a.bits())))
786713};
787714
788−pub static RAP: Jet = |ctx, n| {
789− let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
715+static RAP: Jet = |ctx, n| {
716+ let (bloq, b) = n.as_cell()?;
790717 let bloq = bloq.as_u32().unwrap();
791718 let bits = 2u32.pow(bloq);
792719
793720 let mut target = ctx.big_uints.zero.clone();
794721
795722 for el in b.list_iter().collect::<Vec<_>>().iter().rev() {
796− let el = el.as_atom().ok_or(TTanks::new())?;
723+ let el = el.as_atom()?;
797724 if el != &ctx.big_uints.zero {
798− target = (target << (bits * met(bloq, &el))) | el;
725+ target = (target << (bits * met(bloq, el.clone()))) | el;
799726 }
800727 }
801728
802− Ok(Rc::new(Noun::Atom(target)))
729+ Some(Rc::new(Noun::Atom(target)))
803730};
804731
805732static REP: Jet = |ctx, n| {
806− let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
733+ let (bite, b) = n.as_cell()?;
807734 let bite = bite.as_bite();
808735
809736 let bits = bite.bits();
@@ -812,18 +739,18 @@ static REP: Jet = |ctx, n| {
812739 let mut target = ctx.big_uints.zero.clone();
813740
814741 for el in b.list_iter().collect::<Vec<_>>().iter().rev() {
815− target = (target << bits) | (el.as_atom().ok_or(TTanks::new())? & &mask);
742+ target = (target << bits) | (el.as_atom()? & &mask);
816743 }
817744
818− Ok(Rc::new(Noun::Atom(target)))
745+ Some(Rc::new(Noun::Atom(target)))
819746};
820747
821748static 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())?;
749+ let (bloq, b) = n.as_cell()?;
750+ let (len, dat) = b.as_cell()?;
824751 let bloq = bloq.as_u32().unwrap();
825752 let len = len.as_u32().unwrap();
826− let mut dat: Atom = dat.as_atom().ok_or(TTanks::new())?.clone();
753+ let mut dat: Atom = dat.as_atom()?.clone();
827754
828755 let bits = 2u32.pow(bloq);
829756 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -835,13 +762,13 @@ static REV: Jet = |ctx, n| {
835762 dat = dat >> bits;
836763 }
837764
838− Ok(Rc::new(Noun::Atom(target)))
765+ Some(Rc::new(Noun::Atom(target)))
839766};
840767
841768static RIP: Jet = |ctx, n| {
842− let (bite, b) = n.as_cell().ok_or(TTanks::new())?;
769+ let (bite, b) = n.as_cell()?;
843770 let bite = bite.as_bite();
844− let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
771+ let mut b: Atom = b.as_atom()?.clone();
845772
846773 let bits = bite.bits();
847774 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -853,15 +780,15 @@ static RIP: Jet = |ctx, n| {
853780 b = b >> bits;
854781 }
855782
856− Ok(Noun::list_refs(target.iter().cloned()))
783+ Some(Noun::list_refs(target.iter().cloned()))
857784};
858785
859786static 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())?;
787+ let (bite, b) = n.as_cell()?;
788+ let (b, gate) = b.as_cell()?;
862789
863790 let bite = bite.as_bite();
864− let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
791+ let mut b: Atom = b.as_atom()?.clone();
865792
866793 let bits = bite.bits();
867794 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -870,22 +797,19 @@ static RUN: Jet = |ctx, n| {
870797
871798 while b > ctx.big_uints.zero {
872799 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);
800+ | ((*slam(ctx, gate.clone(), Rc::new(Noun::Atom(&mask & &b)))?).as_atom()? & &mask);
877801 b = b >> bits;
878802 }
879803
880− Ok(Rc::new(Noun::Atom(target)))
804+ Some(Rc::new(Noun::Atom(target)))
881805};
882806
883807static 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())?;
808+ let (bite, b) = n.as_cell()?;
809+ let (b, gate) = b.as_cell()?;
886810
887811 let bite = bite.as_bite();
888− let mut b: Atom = b.as_atom().ok_or(TTanks::new())?.clone();
812+ let mut b: Atom = b.as_atom()?.clone();
889813
890814 let bits = bite.bits();
891815 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
@@ -893,25 +817,21 @@ static RUT: Jet = |ctx, n| {
893817 let mut target = Vec::new();
894818
895819 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− );
820+ target
821+ .push((*slam(ctx, gate.clone(), Rc::new(Noun::Atom(&mask & &b)))?).as_atom()? & &mask);
902822 b = b >> bits;
903823 }
904824
905− Ok(Noun::list(target.iter().cloned().map(Noun::Atom)))
825+ Some(Noun::list(target.iter().cloned().map(Noun::Atom)))
906826};
907827
908828static 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())?;
829+ let (a, b) = n.as_cell()?;
830+ let (b, recipient) = b.as_cell()?;
831+ let (sew_start, c) = b.as_cell()?;
832+ let (number_of_blocks, donor) = c.as_cell()?;
833+ let recipient = recipient.as_atom()?;
834+ let donor = donor.as_atom()?;
915835
916836 let bloq = a.as_u32().unwrap();
917837 let bits = 2u32.pow(bloq);
@@ -923,16 +843,16 @@ static SEW: Jet = |ctx, n| {
923843
924844 let target = (recipient ^ apendix) | (donor & mask);
925845
926− Ok(Rc::new(Noun::Atom(target)))
846+ Some(Rc::new(Noun::Atom(target)))
927847};
928848
929849static SWP: Jet = |ctx, n| {
930− let (bloq, b) = n.as_cell().ok_or(TTanks::new())?;
850+ let (bloq, b) = n.as_cell()?;
931851 let bloq = bloq.as_u32().unwrap();
932852 let bits = 2u32.pow(bloq);
933853 let mask = (&ctx.big_uints.one << bits) - &ctx.big_uints.one;
934854
935− let mut source = b.as_atom().ok_or(TTanks::new())?.clone();
855+ let mut source = b.as_atom()?.clone();
936856 let mut target = ctx.big_uints.zero.clone();
937857
938858 while source > ctx.big_uints.zero {
@@ -940,11 +860,11 @@ static SWP: Jet = |ctx, n| {
940860 source = source >> bits;
941861 }
942862
943− Ok(Rc::new(Noun::Atom(target)))
863+ Some(Rc::new(Noun::Atom(target)))
944864};
945865
946866static XEB: Jet = |_ctx, n| {
947− let mut a = n.as_atom().ok_or(TTanks::new())?.clone();
867+ let mut a = n.as_atom()?.clone();
948868
949869 let mut c = 0;
950870
@@ -953,7 +873,7 @@ static XEB: Jet = |_ctx, n| {
953873 c += 1;
954874 }
955875
956− Ok(Rc::new(Noun::from_u32(c)))
876+ Some(Rc::new(Noun::from_u32(c)))
957877};
958878
959879static CON: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a | b);
@@ -961,310 +881,14 @@ static DIS: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a & b);
961881static MIX: Jet = |_ctx, n| BINARY_ATOM(n, |a, b| a ^ b);
962882
963883static 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())?;
884+ let (a, b) = n.as_cell()?;
885+ let (b, c) = b.as_cell()?;
966886
967887 let bloq = a.as_u32().unwrap();
968888 let bits = 2u32.pow(bloq);
969889 let mask = (&ctx.big_uints.one << (bits * b.as_u32().unwrap())) - &ctx.big_uints.one;
970890
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−};
891+ let target = c.as_atom()? ^ &mask;
1178892
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− }
893+ Some(Rc::new(Noun::Atom(target)))
1193894};
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−}