fix: Extracting `sorry`s from coupled goals
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@ -60,53 +60,54 @@ partial def instantiateDelayedMVars (eOrig: Expr) : MetaM Expr := do
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-- nested mvars.
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mvarId.setKind .syntheticOpaque
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let lctx ← MonadLCtx.getLCtx
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if mvarDecl.lctx.any (λ decl => !lctx.contains decl.fvarId) then
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let violations := mvarDecl.lctx.decls.foldl (λ acc decl? => match decl? with
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| .some decl => if lctx.contains decl.fvarId then acc else acc ++ [decl.fvarId.name]
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| .none => acc) []
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panic! s!"Local context variable violation: {violations}"
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mvarId.withContext do
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let lctx ← MonadLCtx.getLCtx
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if mvarDecl.lctx.any (λ decl => !lctx.contains decl.fvarId) then
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let violations := mvarDecl.lctx.decls.foldl (λ acc decl? => match decl? with
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| .some decl => if lctx.contains decl.fvarId then acc else acc ++ [decl.fvarId.name]
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| .none => acc) []
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panic! s!"In the context of {mvarId.name}, there are local context variable violations: {violations}"
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if let .some assign ← getExprMVarAssignment? mvarId then
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--IO.println s!"{padding}├A ?{mvarId.name}"
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assert! !(← mvarId.isDelayedAssigned)
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return .visit (mkAppN assign args)
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else if let some { fvars, mvarIdPending } ← getDelayedMVarAssignment? mvarId then
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--let substTableStr := String.intercalate ", " $ Array.zipWith fvars args (λ fvar assign => s!"{fvar.fvarId!.name} := {assign}") |>.toList
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--IO.println s!"{padding}├MD ?{mvarId.name} := ?{mvarIdPending.name} [{substTableStr}]"
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if let .some assign ← getExprMVarAssignment? mvarId then
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--IO.println s!"{padding}├A ?{mvarId.name}"
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assert! !(← mvarId.isDelayedAssigned)
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return .visit (mkAppN assign args)
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else if let some { fvars, mvarIdPending } ← getDelayedMVarAssignment? mvarId then
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--let substTableStr := String.intercalate ", " $ Array.zipWith fvars args (λ fvar assign => s!"{fvar.fvarId!.name} := {assign}") |>.toList
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--IO.println s!"{padding}├MD ?{mvarId.name} := ?{mvarIdPending.name} [{substTableStr}]"
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if args.size < fvars.size then
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throwError "Not enough arguments to instantiate a delay assigned mvar. This is due to bad implementations of a tactic: {args.size} < {fvars.size}. Expr: {toString e}; Origin: {toString eOrig}"
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--if !args.isEmpty then
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--IO.println s!"{padding}├── Arguments Begin"
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let args ← args.mapM self
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--if !args.isEmpty then
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--IO.println s!"{padding}├── Arguments End"
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if !(← mvarIdPending.isAssignedOrDelayedAssigned) then
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--IO.println s!"{padding}├T1"
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let result := mkAppN f args
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if args.size < fvars.size then
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throwError "Not enough arguments to instantiate a delay assigned mvar. This is due to bad implementations of a tactic: {args.size} < {fvars.size}. Expr: {toString e}; Origin: {toString eOrig}"
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--if !args.isEmpty then
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--IO.println s!"{padding}├── Arguments Begin"
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let args ← args.mapM self
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--if !args.isEmpty then
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--IO.println s!"{padding}├── Arguments End"
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if !(← mvarIdPending.isAssignedOrDelayedAssigned) then
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--IO.println s!"{padding}├T1"
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let result := mkAppN f args
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return .done result
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let pending ← mvarIdPending.withContext do
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let inner ← instantiateDelayedMVars (.mvar mvarIdPending) --(level := level + 1)
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--IO.println s!"{padding}├Pre: {inner}"
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pure <| (← inner.abstractM fvars).instantiateRev args
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-- Tail arguments
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let result := mkAppRange pending fvars.size args.size args
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--IO.println s!"{padding}├MD {result}"
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return .done result
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else
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assert! !(← mvarId.isAssigned)
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assert! !(← mvarId.isDelayedAssigned)
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--if !args.isEmpty then
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-- IO.println s!"{padding}├── Arguments Begin"
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let args ← args.mapM self
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--if !args.isEmpty then
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-- IO.println s!"{padding}├── Arguments End"
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let pending ← mvarIdPending.withContext do
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let inner ← instantiateDelayedMVars (.mvar mvarIdPending) --(level := level + 1)
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--IO.println s!"{padding}├Pre: {inner}"
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pure <| (← inner.abstractM fvars).instantiateRev args
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-- Tail arguments
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let result := mkAppRange pending fvars.size args.size args
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--IO.println s!"{padding}├MD {result}"
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return .done result
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else
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assert! !(← mvarId.isAssigned)
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assert! !(← mvarId.isDelayedAssigned)
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--if !args.isEmpty then
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-- IO.println s!"{padding}├── Arguments Begin"
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let args ← args.mapM self
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--if !args.isEmpty then
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-- IO.println s!"{padding}├── Arguments End"
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--IO.println s!"{padding}├M ?{mvarId.name}"
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return .done (mkAppN f args))
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--IO.println s!"{padding}├M ?{mvarId.name}"
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return .done (mkAppN f args))
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--IO.println s!"{padding}└Result {result}"
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return result
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where
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@ -1,4 +1,4 @@
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/- Adapted from lean-training-data by semorrison -/
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import Pantograph.Protocol
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import Pantograph.Frontend.Basic
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import Pantograph.Frontend.Elab
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import Pantograph.Frontend.MetaTranslate
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@ -3,9 +3,10 @@ import Lean.Elab.Import
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import Lean.Elab.Command
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import Lean.Elab.InfoTree
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import Pantograph.Protocol
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import Pantograph.Frontend.Basic
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import Pantograph.Frontend.MetaTranslate
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import Pantograph.Goal
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import Pantograph.Protocol
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open Lean
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@ -179,117 +180,6 @@ def collectSorrys (step: CompilationStep) : List InfoWithContext :=
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step.trees.bind collectSorrysInTree
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namespace MetaTranslate
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structure Context where
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sourceMCtx : MetavarContext := {}
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sourceLCtx : LocalContext := {}
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structure State where
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-- Stores mapping from old to new mvar/fvars
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mvarMap: HashMap MVarId MVarId := {}
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fvarMap: HashMap FVarId FVarId := {}
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/-
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Monadic state for translating a frozen meta state. The underlying `MetaM`
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operates in the "target" context and state.
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-/
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abbrev MetaTranslateM := ReaderT Context StateRefT State MetaM
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def getSourceLCtx : MetaTranslateM LocalContext := do pure (← read).sourceLCtx
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def getSourceMCtx : MetaTranslateM MetavarContext := do pure (← read).sourceMCtx
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def addTranslatedFVar (src dst: FVarId) : MetaTranslateM Unit := do
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let state ← get
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set { state with fvarMap := state.fvarMap.insert src dst }
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def addTranslatedMVar (src dst: MVarId) : MetaTranslateM Unit := do
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let state ← get
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set { state with mvarMap := state.mvarMap.insert src dst }
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def resetFVarMap : MetaTranslateM Unit := do
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let state ← get
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set { state with fvarMap := {} }
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private partial def translateExpr (srcExpr: Expr) : MetaTranslateM Expr := do
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let (srcExpr, _) := instantiateMVarsCore (mctx := ← getSourceMCtx) srcExpr
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--IO.println s!"Transform src: {srcExpr}"
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let result ← Core.transform srcExpr λ e => do
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let state ← get
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match e with
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| .fvar fvarId =>
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let .some fvarId' := state.fvarMap.find? fvarId | panic! s!"FVar id not registered: {fvarId.name}"
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return .done $ .fvar fvarId'
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| .mvar mvarId => do
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match state.mvarMap.find? mvarId with
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| .some mvarId' => do
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return .done $ .mvar mvarId'
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| .none => do
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--let t := (← getSourceMCtx).findDecl? mvarId |>.get!.type
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--let t' ← translateExpr t
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let mvar' ← Meta.mkFreshExprMVar .none
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addTranslatedMVar mvarId mvar'.mvarId!
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return .done mvar'
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| _ => return .continue
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try
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Meta.check result
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catch ex =>
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panic! s!"Check failed: {← ex.toMessageData.toString}"
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return result
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def translateLocalDecl (srcLocalDecl: LocalDecl) : MetaTranslateM LocalDecl := do
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let fvarId ← mkFreshFVarId
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addTranslatedFVar srcLocalDecl.fvarId fvarId
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match srcLocalDecl with
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| .cdecl index _ userName type bi kind => do
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--IO.println s!"[CD] {userName} {toString type}"
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return .cdecl index fvarId userName (← translateExpr type) bi kind
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| .ldecl index _ userName type value nonDep kind => do
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--IO.println s!"[LD] {toString type} := {toString value}"
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return .ldecl index fvarId userName (← translateExpr type) (← translateExpr value) nonDep kind
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def translateLCtx : MetaTranslateM LocalContext := do
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resetFVarMap
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(← getSourceLCtx).foldlM (λ lctx srcLocalDecl => do
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let localDecl ← Meta.withLCtx lctx #[] do translateLocalDecl srcLocalDecl
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pure $ lctx.addDecl localDecl
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) (← MonadLCtx.getLCtx)
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def translateMVarId (srcMVarId: MVarId) : MetaTranslateM MVarId := do
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let srcDecl := (← getSourceMCtx).findDecl? srcMVarId |>.get!
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let mvar ← withTheReader Context (λ ctx => { ctx with sourceLCtx := srcDecl.lctx }) do
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let lctx' ← translateLCtx
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Meta.withLCtx lctx' #[] do
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let target' ← translateExpr srcDecl.type
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Meta.mkFreshExprSyntheticOpaqueMVar target'
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addTranslatedMVar srcMVarId mvar.mvarId!
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return mvar.mvarId!
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def translateMVarFromTermInfo (termInfo : Elab.TermInfo) (context? : Option Elab.ContextInfo)
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: MetaM MVarId := do
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let trM : MetaTranslateM MVarId := do
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let type := termInfo.expectedType?.get!
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let lctx' ← translateLCtx
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let mvar ← Meta.withLCtx lctx' #[] do
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let type' ← translateExpr type
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Meta.mkFreshExprSyntheticOpaqueMVar type'
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return mvar.mvarId!
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trM.run {
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sourceMCtx := context?.map (·.mctx) |>.getD {},
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sourceLCtx := termInfo.lctx } |>.run' {}
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def translateMVarFromTacticInfoBefore (tacticInfo : Elab.TacticInfo) (_context? : Option Elab.ContextInfo)
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: MetaM (List MVarId) := do
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let trM : MetaTranslateM (List MVarId) := do
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tacticInfo.goalsBefore.mapM translateMVarId
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trM.run {
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sourceMCtx := tacticInfo.mctxBefore
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} |>.run' {}
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end MetaTranslate
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export MetaTranslate (MetaTranslateM)
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/--
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Since we cannot directly merge `MetavarContext`s, we have to get creative. This
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@ -299,7 +189,7 @@ the current `MetavarContext`.
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@[export pantograph_frontend_sorrys_to_goal_state]
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def sorrysToGoalState (sorrys : List InfoWithContext) : MetaM GoalState := do
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assert! !sorrys.isEmpty
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let goals ← sorrys.mapM λ i => do
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let goalsM := sorrys.mapM λ i => do
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match i.info with
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| .ofTermInfo termInfo => do
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let mvarId ← MetaTranslate.translateMVarFromTermInfo termInfo i.context?
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@ -307,7 +197,7 @@ def sorrysToGoalState (sorrys : List InfoWithContext) : MetaM GoalState := do
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| .ofTacticInfo tacticInfo => do
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MetaTranslate.translateMVarFromTacticInfoBefore tacticInfo i.context?
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| _ => panic! "Invalid info"
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let goals := goals.bind id
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let goals := (← goalsM.run {} |>.run' {}).bind id
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let root := match goals with
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| [] => panic! "This function cannot be called on an empty list"
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| [g] => g
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@ -0,0 +1,129 @@
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import Lean.Meta
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open Lean
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namespace Pantograph.Frontend
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namespace MetaTranslate
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structure Context where
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sourceMCtx : MetavarContext := {}
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sourceLCtx : LocalContext := {}
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abbrev FVarMap := HashMap FVarId FVarId
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structure State where
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-- Stores mapping from old to new mvar/fvars
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mvarMap: HashMap MVarId MVarId := {}
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fvarMap: HashMap FVarId FVarId := {}
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/-
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Monadic state for translating a frozen meta state. The underlying `MetaM`
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operates in the "target" context and state.
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-/
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abbrev MetaTranslateM := ReaderT Context StateRefT State MetaM
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def getSourceLCtx : MetaTranslateM LocalContext := do pure (← read).sourceLCtx
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def getSourceMCtx : MetaTranslateM MetavarContext := do pure (← read).sourceMCtx
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def addTranslatedFVar (src dst: FVarId) : MetaTranslateM Unit := do
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modifyGet λ state => ((), { state with fvarMap := state.fvarMap.insert src dst })
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def addTranslatedMVar (src dst: MVarId) : MetaTranslateM Unit := do
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modifyGet λ state => ((), { state with mvarMap := state.mvarMap.insert src dst })
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def saveFVarMap : MetaTranslateM FVarMap := do
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return (← get).fvarMap
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def restoreFVarMap (map: FVarMap) : MetaTranslateM Unit := do
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modifyGet λ state => ((), { state with fvarMap := map })
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def resetFVarMap : MetaTranslateM Unit := do
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modifyGet λ state => ((), { state with fvarMap := {} })
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mutual
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private partial def translateExpr (srcExpr: Expr) : MetaTranslateM Expr := do
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let sourceMCtx ← getSourceMCtx
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let (srcExpr, _) := instantiateMVarsCore (mctx := sourceMCtx) srcExpr
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--IO.println s!"Transform src: {srcExpr}"
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let result ← Core.transform srcExpr λ e => do
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let state ← get
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match e with
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| .fvar fvarId =>
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let .some fvarId' := state.fvarMap.find? fvarId | panic! s!"FVar id not registered: {fvarId.name}"
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assert! (← getLCtx).contains fvarId'
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return .done $ .fvar fvarId'
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| .mvar mvarId => do
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assert! !(sourceMCtx.dAssignment.contains mvarId)
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assert! !(sourceMCtx.eAssignment.contains mvarId)
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match state.mvarMap.find? mvarId with
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| .some mvarId' => do
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return .done $ .mvar mvarId'
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| .none => do
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-- Entering another LCtx, must save the current one
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let fvarMap ← saveFVarMap
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let mvarId' ← translateMVarId mvarId
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restoreFVarMap fvarMap
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return .done $ .mvar mvarId'
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| _ => return .continue
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Meta.check result
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return result
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partial def translateLocalInstance (srcInstance: LocalInstance) : MetaTranslateM LocalInstance := do
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return {
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className := srcInstance.className,
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fvar := ← translateExpr srcInstance.fvar
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}
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partial def translateLocalDecl (srcLocalDecl: LocalDecl) : MetaTranslateM LocalDecl := do
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let fvarId ← mkFreshFVarId
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addTranslatedFVar srcLocalDecl.fvarId fvarId
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match srcLocalDecl with
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| .cdecl index _ userName type bi kind => do
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--IO.println s!"[CD] {userName} {toString type}"
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return .cdecl index fvarId userName (← translateExpr type) bi kind
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| .ldecl index _ userName type value nonDep kind => do
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--IO.println s!"[LD] {toString type} := {toString value}"
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return .ldecl index fvarId userName (← translateExpr type) (← translateExpr value) nonDep kind
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partial def translateLCtx : MetaTranslateM LocalContext := do
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resetFVarMap
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(← getSourceLCtx).foldlM (λ lctx srcLocalDecl => do
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let localDecl ← Meta.withLCtx lctx #[] do translateLocalDecl srcLocalDecl
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pure $ lctx.addDecl localDecl
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) (← MonadLCtx.getLCtx)
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partial def translateMVarId (srcMVarId: MVarId) : MetaTranslateM MVarId := do
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if let .some mvarId' := (← get).mvarMap.find? srcMVarId then
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return mvarId'
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let srcDecl := (← getSourceMCtx).findDecl? srcMVarId |>.get!
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let mvar ← withTheReader Context (λ ctx => { ctx with sourceLCtx := srcDecl.lctx }) do
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let lctx' ← translateLCtx
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let localInstances' ← srcDecl.localInstances.mapM translateLocalInstance
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Meta.withLCtx lctx' localInstances' do
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let target' ← translateExpr srcDecl.type
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Meta.mkFreshExprMVar target' srcDecl.kind srcDecl.userName
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addTranslatedMVar srcMVarId mvar.mvarId!
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return mvar.mvarId!
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end
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def translateMVarFromTermInfo (termInfo : Elab.TermInfo) (context? : Option Elab.ContextInfo)
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: MetaTranslateM MVarId := do
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withTheReader Context (λ ctx => { ctx with
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sourceMCtx := context?.map (·.mctx) |>.getD {},
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sourceLCtx := termInfo.lctx,
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}) do
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let type := termInfo.expectedType?.get!
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let lctx' ← translateLCtx
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let mvar ← Meta.withLCtx lctx' #[] do
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let type' ← translateExpr type
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Meta.mkFreshExprSyntheticOpaqueMVar type'
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return mvar.mvarId!
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def translateMVarFromTacticInfoBefore (tacticInfo : Elab.TacticInfo) (_context? : Option Elab.ContextInfo)
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: MetaTranslateM (List MVarId) := do
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withTheReader Context (λ ctx => { ctx with sourceMCtx := tacticInfo.mctxBefore }) do
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tacticInfo.goalsBefore.mapM translateMVarId
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end MetaTranslate
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export MetaTranslate (MetaTranslateM)
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end Pantograph.Frontend
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@ -26,8 +26,8 @@ theorem plus_n_Sm_proved_formal_sketch : ∀ n m : Nat, n + (m + 1) = (n + m) +
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sorry
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"
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let goalStates ← (collectSorrysFromSource sketch).run' {}
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let [goalState] := goalStates | panic! "Illegal number of states"
|
||||
addTest $ LSpec.check "plus_n_Sm" ((← goalState.serializeGoals (options := {})).map (·.devolatilize) = #[
|
||||
let [goalState] := goalStates | panic! "Incorrect number of states"
|
||||
addTest $ LSpec.check "goals" ((← goalState.serializeGoals (options := {})).map (·.devolatilize) = #[
|
||||
{
|
||||
target := { pp? := "∀ (n m : Nat), n = m" },
|
||||
vars := #[
|
||||
|
|
@ -49,8 +49,8 @@ example : ∀ (n m: Nat), n + m = m + n := by
|
|||
sorry
|
||||
"
|
||||
let goalStates ← (collectSorrysFromSource sketch).run' {}
|
||||
let [goalState] := goalStates | panic! s!"Illegal number of states: {goalStates.length}"
|
||||
addTest $ LSpec.check "plus_n_Sm" ((← goalState.serializeGoals (options := {})).map (·.devolatilize) = #[
|
||||
let [goalState] := goalStates | panic! s!"Incorrect number of states: {goalStates.length}"
|
||||
addTest $ LSpec.check "goals" ((← goalState.serializeGoals (options := {})).map (·.devolatilize) = #[
|
||||
{
|
||||
target := { pp? := "n + m = m + n" },
|
||||
vars := #[{
|
||||
|
|
@ -77,8 +77,8 @@ example : ∀ (n m: Nat), n + m = m + n := by
|
|||
sorry
|
||||
"
|
||||
let goalStates ← (collectSorrysFromSource sketch).run' {}
|
||||
let [goalState] := goalStates | panic! s!"Illegal number of states: {goalStates.length}"
|
||||
addTest $ LSpec.check "plus_n_Sm" ((← goalState.serializeGoals (options := {})).map (·.devolatilize) = #[
|
||||
let [goalState] := goalStates | panic! s!"Incorrect number of states: {goalStates.length}"
|
||||
addTest $ LSpec.check "goals" ((← goalState.serializeGoals (options := {})).map (·.devolatilize) = #[
|
||||
{
|
||||
target := { pp? := "0 + m = m" },
|
||||
vars := #[{
|
||||
|
|
@ -87,6 +87,7 @@ example : ∀ (n m: Nat), n + m = m + n := by
|
|||
}]
|
||||
},
|
||||
{
|
||||
userName? := .some "zero",
|
||||
target := { pp? := "0 + m = m + 0" },
|
||||
vars := #[{
|
||||
userName := "m",
|
||||
|
|
@ -110,6 +111,7 @@ example : ∀ (n m: Nat), n + m = m + n := by
|
|||
}]
|
||||
},
|
||||
{
|
||||
userName? := .some "succ",
|
||||
target := { pp? := "n + 1 + m = m + (n + 1)" },
|
||||
vars := #[{
|
||||
userName := "m",
|
||||
|
|
@ -127,12 +129,47 @@ example : ∀ (n m: Nat), n + m = m + n := by
|
|||
}
|
||||
])
|
||||
|
||||
def test_sorry_in_coupled: TestT MetaM Unit := do
|
||||
let sketch := "
|
||||
example : ∀ (y: Nat), ∃ (x: Nat), y + 1 = x := by
|
||||
intro y
|
||||
apply Exists.intro
|
||||
case h => sorry
|
||||
case w => sorry
|
||||
"
|
||||
let goalStates ← (collectSorrysFromSource sketch).run' {}
|
||||
let [goalState] := goalStates | panic! s!"Incorrect number of states: {goalStates.length}"
|
||||
addTest $ LSpec.check "goals" ((← goalState.serializeGoals (options := {})).map (·.devolatilize) = #[
|
||||
{
|
||||
target := { pp? := "y + 1 = ?w" },
|
||||
vars := #[{
|
||||
userName := "y",
|
||||
type? := .some { pp? := "Nat" },
|
||||
}
|
||||
],
|
||||
},
|
||||
{
|
||||
userName? := .some "w",
|
||||
target := { pp? := "Nat" },
|
||||
vars := #[{
|
||||
userName := "y✝",
|
||||
isInaccessible := true,
|
||||
type? := .some { pp? := "Nat" },
|
||||
}, {
|
||||
userName := "y",
|
||||
type? := .some { pp? := "Nat" },
|
||||
}
|
||||
],
|
||||
}
|
||||
])
|
||||
|
||||
|
||||
def suite (env : Environment): List (String × IO LSpec.TestSeq) :=
|
||||
let tests := [
|
||||
("multiple_sorrys_in_proof", test_multiple_sorrys_in_proof),
|
||||
("sorry_in_middle", test_sorry_in_middle),
|
||||
("sorry_in_induction", test_sorry_in_induction),
|
||||
("sorry_in_coupled", test_sorry_in_coupled),
|
||||
]
|
||||
tests.map (fun (name, test) => (name, runMetaMSeq env $ runTest test))
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue