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feat(frontend): Refactor function #234

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aniva commented 2025-07-11 16:04:18 -07:00
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This PR adds a new command, frontend.refactor, to the REPL. This is a data cleaning feature, intended to convert code that is unsuitable for the search view to a ready-made search target.

The view of Pantograph and Project No. 3 are that declarations (i.e. lemma, def, etc.) are a post-factum construction of the search process and not a part of a search process itself. For this reason, any proof search starts from one or a few targets, with their coupling explicitly declared.

Many data points in PutnamBench, and research level questions in mathematics, involves constructing an object conforming to certain standards. A mathematician may put sorrys as placeholders. The refactor function's first and foremost goal is to group these sorrys into coupling groups so they can be searched in lockstep.

This PR adds a new command, `frontend.refactor`, to the REPL. This is a data cleaning feature, intended to convert code that is unsuitable for the search view to a ready-made search target. The view of Pantograph and Project No. 3 are that declarations (i.e. `lemma`, `def`, etc.) are a post-factum construction of the search process and not a part of a search process itself. For this reason, any proof search starts from one or a few targets, with their coupling explicitly declared. Many data points in PutnamBench, and research level questions in mathematics, involves constructing an object conforming to certain standards. A mathematician may put `sorry`s as placeholders. The refactor function's first and foremost goal is to group these `sorrys` into coupling groups so they can be searched in lockstep.
aniva added this to the v0.3.4 milestone 2025-07-11 16:04:18 -07:00
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#213 🖇️ Articulation and Syntax Processing
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aniva commented 2025-07-11 20:01:42 -07:00
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For example,

def f : Nat → Nat := λ x => x + 1

theorem mystery_property (n : Nat) : f n = n + 1 := sorry

theorem mystery_property2 { α } [Add α] : f 5 = 10 := sorry

and then run tomograph on it: lake exe tomograph dissect Examples/Refactor.lean

🐈 Lean.Parser.Command.declaration
🌲[0] [command] (Command.declaration
 (Command.declModifiers [] [] [] [] [] [])
 (Command.definition
  "def"
  (Command.declId `f [])
  (Command.optDeclSig [] [(Term.typeSpec ":" (Term.arrow `Nat "→" `Nat))])
  (Command.declValSimple
   ":="
   (Term.fun "λ" (Term.basicFun [`x] [] "=>" («term_+_» `x "+" (num "1"))))
   (Termination.suffix [] [])
   [])
  []))
[term] (Term.arrow `Nat "→" `Nat)
  [term] `Nat
    [completion] `Nat
    [term] `Nat
  [term] `Nat
    [completion] `Nat
    [term] `Nat
[term] (Command.declId `f [])
[custom]
  [term] (Term.fun "λ" (Term.basicFun [`x] [] "=>" («term_+_» `x "+" (num "1"))))
    [term] (Term.hole "_")
    [term] `x
    [term] («term_+_» `x "+" (num "1"))
      [macro_exp]
        [term] (Term.binop "binop%" `HAdd.hAdd._@._hyg.11 `x (num "1"))
          [term] (Term.binop "binop%" `HAdd.hAdd._@._hyg.11 `x (num "1"))
            [completion] `HAdd.hAdd._@._hyg.11
            [term] `x
              [completion] `x
              [term] `x
            [term] (num "1")
[term] `f

🐈 Lean.Parser.Command.declaration
🌲[0] [command] (Command.declaration
 (Command.declModifiers [] [] [] [] [] [])
 (Command.theorem
  "theorem"
  (Command.declId `mystery_property [])
  (Command.declSig
   [(Term.explicitBinder "(" [`n] [":" `Nat] [] ")")]
   (Term.typeSpec ":" («term_=_» (Term.app `f [`n]) "=" («term_+_» `n "+" (num "1")))))
  (Command.declValSimple ":=" (Term.sorry "sorry") (Termination.suffix [] []) [])))
[term] `Nat
  [completion] `Nat
  [term] `Nat
[term] `n
[term] («term_=_» (Term.app `f [`n]) "=" («term_+_» `n "+" (num "1")))
  [macro_exp]
    [term] (Term.binrel "binrel%" `Eq._@._hyg.19 (Term.app `f [`n]) («term_+_» `n "+" (num "1")))
      [term] (Term.binrel "binrel%" `Eq._@._hyg.19 (Term.app `f [`n]) («term_+_» `n "+" (num "1")))
        [completion] `Eq._@._hyg.19
        [term] (Term.app `f [`n])
          [completion] `f
          [term] `f
          [term] `n
            [completion] `n
            [term] `n
        [term] («term_+_» `n "+" (num "1"))
          [macro_exp]
            [term] (Term.binop "binop%" `HAdd.hAdd._@._hyg.23 `n (num "1"))
              [completion] `HAdd.hAdd._@._hyg.23
              [term] `n
                [completion] `n
                [term] `n
              [term] (num "1")
[term] (Command.declId `mystery_property [])
[term] `n
[custom]
  [term] (Term.sorry "sorry")
[term] `mystery_property

🔈[0] Examples/Refactor.lean:4:8: warning: declaration uses 'sorry'

🐈 Lean.Parser.Command.declaration
🌲[0] [command] (Command.declaration
 (Command.declModifiers [] [] [] [] [] [])
 (Command.theorem
  "theorem"
  (Command.declId `mystery_property2 [])
  (Command.declSig
   [(Term.implicitBinder "{" [`α] [] "}") (Term.instBinder "[" [] (Term.app `Add [`α]) "]")]
   (Term.typeSpec ":" («term_=_» (Term.app `f [(num "5")]) "=" (num "10"))))
  (Command.declValSimple ":=" (Term.sorry "sorry") (Termination.suffix [] []) [])))
[term] (Term.hole "_")
[term] `α
[term] (Term.app `Add [`α])
  [completion] `Add
  [term] `Add
  [term] `α
    [completion] `α
    [term] `α
[term] `inst._@._hyg.31
[term] («term_=_» (Term.app `f [(num "5")]) "=" (num "10"))
  [macro_exp]
    [term] (Term.binrel "binrel%" `Eq._@._hyg.35 (Term.app `f [(num "5")]) (num "10"))
      [term] (Term.binrel "binrel%" `Eq._@._hyg.35 (Term.app `f [(num "5")]) (num "10"))
        [completion] `Eq._@._hyg.35
        [term] (Term.app `f [(num "5")])
          [completion] `f
          [term] `f
          [term] (num "5")
        [term] (num "10")
[term] (Command.declId `mystery_property2 [])
[term] `α
[term] `inst._@._hyg.31
[custom]
  [term] (Term.sorry "sorry")
[term] `mystery_property2

🔈[0] Examples/Refactor.lean:6:8: warning: declaration uses 'sorry'
For example, ```lean def f : Nat → Nat := λ x => x + 1 theorem mystery_property (n : Nat) : f n = n + 1 := sorry theorem mystery_property2 { α } [Add α] : f 5 = 10 := sorry ``` and then run `tomograph` on it: `lake exe tomograph dissect Examples/Refactor.lean` ``` 🐈 Lean.Parser.Command.declaration 🌲[0] [command] (Command.declaration (Command.declModifiers [] [] [] [] [] []) (Command.definition "def" (Command.declId `f []) (Command.optDeclSig [] [(Term.typeSpec ":" (Term.arrow `Nat "→" `Nat))]) (Command.declValSimple ":=" (Term.fun "λ" (Term.basicFun [`x] [] "=>" («term_+_» `x "+" (num "1")))) (Termination.suffix [] []) []) [])) [term] (Term.arrow `Nat "→" `Nat) [term] `Nat [completion] `Nat [term] `Nat [term] `Nat [completion] `Nat [term] `Nat [term] (Command.declId `f []) [custom] [term] (Term.fun "λ" (Term.basicFun [`x] [] "=>" («term_+_» `x "+" (num "1")))) [term] (Term.hole "_") [term] `x [term] («term_+_» `x "+" (num "1")) [macro_exp] [term] (Term.binop "binop%" `HAdd.hAdd._@._hyg.11 `x (num "1")) [term] (Term.binop "binop%" `HAdd.hAdd._@._hyg.11 `x (num "1")) [completion] `HAdd.hAdd._@._hyg.11 [term] `x [completion] `x [term] `x [term] (num "1") [term] `f 🐈 Lean.Parser.Command.declaration 🌲[0] [command] (Command.declaration (Command.declModifiers [] [] [] [] [] []) (Command.theorem "theorem" (Command.declId `mystery_property []) (Command.declSig [(Term.explicitBinder "(" [`n] [":" `Nat] [] ")")] (Term.typeSpec ":" («term_=_» (Term.app `f [`n]) "=" («term_+_» `n "+" (num "1"))))) (Command.declValSimple ":=" (Term.sorry "sorry") (Termination.suffix [] []) []))) [term] `Nat [completion] `Nat [term] `Nat [term] `n [term] («term_=_» (Term.app `f [`n]) "=" («term_+_» `n "+" (num "1"))) [macro_exp] [term] (Term.binrel "binrel%" `Eq._@._hyg.19 (Term.app `f [`n]) («term_+_» `n "+" (num "1"))) [term] (Term.binrel "binrel%" `Eq._@._hyg.19 (Term.app `f [`n]) («term_+_» `n "+" (num "1"))) [completion] `Eq._@._hyg.19 [term] (Term.app `f [`n]) [completion] `f [term] `f [term] `n [completion] `n [term] `n [term] («term_+_» `n "+" (num "1")) [macro_exp] [term] (Term.binop "binop%" `HAdd.hAdd._@._hyg.23 `n (num "1")) [completion] `HAdd.hAdd._@._hyg.23 [term] `n [completion] `n [term] `n [term] (num "1") [term] (Command.declId `mystery_property []) [term] `n [custom] [term] (Term.sorry "sorry") [term] `mystery_property 🔈[0] Examples/Refactor.lean:4:8: warning: declaration uses 'sorry' 🐈 Lean.Parser.Command.declaration 🌲[0] [command] (Command.declaration (Command.declModifiers [] [] [] [] [] []) (Command.theorem "theorem" (Command.declId `mystery_property2 []) (Command.declSig [(Term.implicitBinder "{" [`α] [] "}") (Term.instBinder "[" [] (Term.app `Add [`α]) "]")] (Term.typeSpec ":" («term_=_» (Term.app `f [(num "5")]) "=" (num "10")))) (Command.declValSimple ":=" (Term.sorry "sorry") (Termination.suffix [] []) []))) [term] (Term.hole "_") [term] `α [term] (Term.app `Add [`α]) [completion] `Add [term] `Add [term] `α [completion] `α [term] `α [term] `inst._@._hyg.31 [term] («term_=_» (Term.app `f [(num "5")]) "=" (num "10")) [macro_exp] [term] (Term.binrel "binrel%" `Eq._@._hyg.35 (Term.app `f [(num "5")]) (num "10")) [term] (Term.binrel "binrel%" `Eq._@._hyg.35 (Term.app `f [(num "5")]) (num "10")) [completion] `Eq._@._hyg.35 [term] (Term.app `f [(num "5")]) [completion] `f [term] `f [term] (num "5") [term] (num "10") [term] (Command.declId `mystery_property2 []) [term] `α [term] `inst._@._hyg.31 [custom] [term] (Term.sorry "sorry") [term] `mystery_property2 🔈[0] Examples/Refactor.lean:6:8: warning: declaration uses 'sorry' ```
aniva modified the milestone from v0.3.4 to v0.3.5 2025-07-11 20:07:34 -07:00
aniva added 2 commits 2025-07-11 21:02:55 -07:00
aniva added 1 commit 2025-07-11 21:03:33 -07:00
aniva added the
part/REPL
 label 2025-07-11 21:03:54 -07:00
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#213 🖇️ Articulation and Syntax Processing
aniva/Pantograph
Reference: aniva/Pantograph#234
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