feat: Expose GoalState
functions #94
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@ -164,7 +164,7 @@ def execute (command: Protocol.Command): MainM Lean.Json := do
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| .some branchId, .none => do
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match state.goalStates.find? branchId with
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| .none => return .error $ errorIndex s!"Invalid state index {branchId}"
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| .some branch => pure $ goalContinue target branch
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| .some branch => pure $ target.continue branch
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| .none, .some goals =>
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pure $ goalResume target goals
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| _, _ => return .error <| errorI "arguments" "Exactly one of {branch, goals} must be supplied"
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@ -39,15 +39,15 @@ protected def GoalState.create (expr: Expr): Elab.TermElabM GoalState := do
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--Elab.Term.synthesizeSyntheticMVarsNoPostponing
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--let expr ← instantiateMVars expr
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let goal ← Meta.mkFreshExprMVar expr (kind := MetavarKind.synthetic) (userName := .anonymous)
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let root ← Meta.mkFreshExprMVar expr (kind := MetavarKind.synthetic) (userName := .anonymous)
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let savedStateMonad: Elab.Tactic.TacticM Elab.Tactic.SavedState := MonadBacktrack.saveState
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let root := goal.mvarId!
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let savedState ← savedStateMonad { elaborator := .anonymous } |>.run' { goals := [root]}
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let savedState ← savedStateMonad { elaborator := .anonymous } |>.run' { goals := [root.mvarId!]}
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return {
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root,
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root := root.mvarId!,
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savedState,
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parentMVar? := .none,
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}
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@[export pantograph_goal_state_is_conv]
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protected def GoalState.isConv (state: GoalState): Bool :=
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state.convMVar?.isSome
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protected def GoalState.goals (state: GoalState): List MVarId :=
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@ -56,6 +56,7 @@ protected def GoalState.goals (state: GoalState): List MVarId :=
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protected def GoalState.goalsArray (state: GoalState): Array MVarId := state.goals.toArray
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protected def GoalState.mctx (state: GoalState): MetavarContext :=
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state.savedState.term.meta.meta.mctx
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@[export pantograph_goal_state_env]
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protected def GoalState.env (state: GoalState): Environment :=
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state.savedState.term.meta.core.env
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@ -85,7 +86,7 @@ private def GoalState.restoreTacticM (state: GoalState) (goal: MVarId): Elab.Tac
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state.savedState.restore
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Elab.Tactic.setGoals [goal]
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@[export pantograph_goal_state_focus]
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protected def GoalState.focus (state: GoalState) (goalId: Nat): Option GoalState := do
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let goal ← state.savedState.tactic.goals.get? goalId
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return {
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@ -121,6 +122,7 @@ protected def GoalState.resume (state: GoalState) (goals: List MVarId): Except S
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/--
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Brings into scope all goals from `branch`
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-/
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@[export pantograph_goal_state_continue]
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protected def GoalState.continue (target: GoalState) (branch: GoalState): Except String GoalState :=
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if !target.goals.isEmpty then
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.error s!"Target state has unresolved goals"
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@ -134,10 +134,6 @@ def goalStartExpr (expr: String) (levels: Array String): CoreM (Protocol.CR Goal
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def goalResume (target: GoalState) (goals: Array String): Except String GoalState :=
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target.resume (goals.map (λ n => { name := n.toName }) |>.toList)
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@[export pantograph_goal_continue]
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def goalContinue (target: GoalState) (branch: GoalState): Except String GoalState :=
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target.continue branch
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@[export pantograph_goal_serialize_m]
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def goalSerialize (state: GoalState) (options: @&Protocol.Options): CoreM (Array Protocol.Goal) :=
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runMetaM <| state.serializeGoals (parent := .none) options
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@ -189,8 +185,5 @@ def goalConvExit (state: GoalState): CoreM TacticResult :=
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@[export pantograph_goal_calc_m]
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def goalCalc (state: GoalState) (goalId: Nat) (pred: String): CoreM TacticResult :=
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runTermElabM <| state.tryCalc goalId pred
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@[export pantograph_goal_focus]
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def goalFocus (state: GoalState) (goalId: Nat): Option GoalState :=
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state.focus goalId
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end Pantograph
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