feat: Expose GoalState functions #94

Merged
aniva merged 5 commits from lib/export into dev 2024-09-08 12:10:47 -07:00
3 changed files with 15 additions and 18 deletions

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@ -164,7 +164,7 @@ def execute (command: Protocol.Command): MainM Lean.Json := do
| .some branchId, .none => do
match state.goalStates.find? branchId with
| .none => return .error $ errorIndex s!"Invalid state index {branchId}"
| .some branch => pure $ goalContinue target branch
| .some branch => pure $ target.continue branch
| .none, .some goals =>
pure $ goalResume target goals
| _, _ => 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
--Elab.Term.synthesizeSyntheticMVarsNoPostponing
--let expr ← instantiateMVars expr
let goal ← Meta.mkFreshExprMVar expr (kind := MetavarKind.synthetic) (userName := .anonymous)
let root ← Meta.mkFreshExprMVar expr (kind := MetavarKind.synthetic) (userName := .anonymous)
let savedStateMonad: Elab.Tactic.TacticM Elab.Tactic.SavedState := MonadBacktrack.saveState
let root := goal.mvarId!
let savedState ← savedStateMonad { elaborator := .anonymous } |>.run' { goals := [root]}
let savedState ← savedStateMonad { elaborator := .anonymous } |>.run' { goals := [root.mvarId!]}
return {
root,
root := root.mvarId!,
savedState,
parentMVar? := .none,
}
@[export pantograph_goal_state_is_conv]
protected def GoalState.isConv (state: GoalState): Bool :=
state.convMVar?.isSome
protected def GoalState.goals (state: GoalState): List MVarId :=
@ -63,17 +63,16 @@ protected def GoalState.env (state: GoalState): Environment :=
protected def GoalState.metaContextOfGoal (state: GoalState) (mvarId: MVarId): Option Meta.Context := do
let mvarDecl ← state.mctx.findDecl? mvarId
return { lctx := mvarDecl.lctx, localInstances := mvarDecl.localInstances }
@[export pantograph_goal_state_meta_state]
protected def GoalState.metaState (state: GoalState): Meta.State :=
state.savedState.term.meta.meta
protected def GoalState.withContext (state: GoalState) (mvarId: MVarId) (m: MetaM α): MetaM α := do
mvarId.withContext m |>.run' (← read) state.metaState
protected def GoalState.withParentContext (state: GoalState) (m: MetaM α): MetaM α := do
state.withContext state.parentMVar?.get! m
protected def GoalState.withRootContext (state: GoalState) (m: MetaM α): MetaM α := do
state.withContext state.root m
protected def GoalState.withParentContext { n } [MonadControlT MetaM n] [Monad n] (state: GoalState): n α → n α :=
Meta.mapMetaM <| state.withContext state.parentMVar?.get!
protected def GoalState.withRootContext { n } [MonadControlT MetaM n] [Monad n] (state: GoalState): n α → n α :=
Meta.mapMetaM <| state.withContext state.root
private def GoalState.mvars (state: GoalState): SSet MVarId :=
state.mctx.decls.foldl (init := .empty) fun acc k _ => acc.insert k
@ -85,7 +84,7 @@ private def GoalState.restoreTacticM (state: GoalState) (goal: MVarId): Elab.Tac
state.savedState.restore
Elab.Tactic.setGoals [goal]
@[export pantograph_goal_state_focus]
protected def GoalState.focus (state: GoalState) (goalId: Nat): Option GoalState := do
let goal ← state.savedState.tactic.goals.get? goalId
return {
@ -121,6 +120,7 @@ protected def GoalState.resume (state: GoalState) (goals: List MVarId): Except S
/--
Brings into scope all goals from `branch`
-/
@[export pantograph_goal_state_continue]
protected def GoalState.continue (target: GoalState) (branch: GoalState): Except String GoalState :=
if !target.goals.isEmpty then
.error s!"Target state has unresolved goals"
@ -233,6 +233,7 @@ protected def GoalState.tryLet (state: GoalState) (goalId: Nat) (binderName: Str
state.tryTacticM goalId $ Tactic.evalLet binderName.toName type
/-- Enter conv tactic mode -/
@[export pantograph_goal_state_conv_m]
protected def GoalState.conv (state: GoalState) (goalId: Nat):
Elab.TermElabM TacticResult := do
if state.convMVar?.isSome then
@ -263,6 +264,7 @@ protected def GoalState.conv (state: GoalState) (goalId: Nat):
return .failure #[← exception.toMessageData.toString]
/-- Exit from `conv` mode. Resumes all goals before the mode starts and applys the conv -/
@[export pantograph_goal_state_conv_exit_m]
protected def GoalState.convExit (state: GoalState):
Elab.TermElabM TacticResult := do
let (convRhs, convGoal) ← match state.convMVar? with
@ -303,6 +305,8 @@ protected def GoalState.calcPrevRhsOf? (state: GoalState) (goalId: Nat) :=
state.calcPrevRhs?
else
.none
@[export pantograph_goal_state_try_calc_m]
protected def GoalState.tryCalc (state: GoalState) (goalId: Nat) (pred: String):
Elab.TermElabM TacticResult := do
state.restoreElabM

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@ -134,10 +134,6 @@ def goalStartExpr (expr: String) (levels: Array String): CoreM (Protocol.CR Goal
def goalResume (target: GoalState) (goals: Array String): Except String GoalState :=
target.resume (goals.map (λ n => { name := n.toName }) |>.toList)
@[export pantograph_goal_continue]
def goalContinue (target: GoalState) (branch: GoalState): Except String GoalState :=
target.continue branch
@[export pantograph_goal_serialize_m]
def goalSerialize (state: GoalState) (options: @&Protocol.Options): CoreM (Array Protocol.Goal) :=
runMetaM <| state.serializeGoals (parent := .none) options
@ -189,8 +185,5 @@ def goalConvExit (state: GoalState): CoreM TacticResult :=
@[export pantograph_goal_calc_m]
def goalCalc (state: GoalState) (goalId: Nat) (pred: String): CoreM TacticResult :=
runTermElabM <| state.tryCalc goalId pred
@[export pantograph_goal_focus]
def goalFocus (state: GoalState) (goalId: Nat): Option GoalState :=
state.focus goalId
end Pantograph