155 lines
4.9 KiB
Plaintext
155 lines
4.9 KiB
Plaintext
import Pantograph.Goal
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import Pantograph.Library
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import Pantograph.Protocol
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import Lean
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import LSpec
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open Lean
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namespace Pantograph
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deriving instance Repr for Expr
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-- Use strict equality check for expressions
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instance : BEq Expr := ⟨Expr.equal⟩
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def uniq (n: Nat): Name := .num (.str .anonymous "_uniq") n
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-- Auxiliary functions
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namespace Protocol
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def Goal.devolatilizeVars (goal: Goal): Goal :=
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{
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goal with
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vars := goal.vars.map removeInternalAux,
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}
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where removeInternalAux (v: Variable): Variable :=
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{
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v with
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name := ""
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}
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/-- Set internal names to "" -/
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def Goal.devolatilize (goal: Goal): Goal :=
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{
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goal.devolatilizeVars with
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name := "",
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}
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deriving instance DecidableEq, Repr for Name
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deriving instance DecidableEq, Repr for Expression
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deriving instance DecidableEq, Repr for Variable
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deriving instance DecidableEq, Repr for Goal
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deriving instance DecidableEq, Repr for ExprEchoResult
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deriving instance DecidableEq, Repr for InteractionError
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deriving instance DecidableEq, Repr for Option
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end Protocol
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namespace Condensed
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deriving instance BEq, Repr for LocalDecl
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deriving instance BEq, Repr for Goal
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protected def LocalDecl.devolatilize (decl: LocalDecl): LocalDecl :=
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{
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decl with fvarId := { name := .anonymous }
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}
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protected def Goal.devolatilize (goal: Goal): Goal :=
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{
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goal with
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mvarId := { name := .anonymous },
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context := goal.context.map LocalDecl.devolatilize
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}
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end Condensed
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def GoalState.get! (state: GoalState) (i: Nat): MVarId := state.goals.get! i
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def GoalState.tacticOn (state: GoalState) (goalId: Nat) (tactic: String) := state.tryTactic (state.goals.get! goalId) tactic
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def TacticResult.toString : TacticResult → String
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| .success state => s!".success ({state.goals.length} goals)"
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| .failure messages =>
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let messages := "\n".intercalate messages.toList
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s!".failure {messages}"
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| .parseError error => s!".parseError {error}"
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| .invalidAction error => s!".invalidAction {error}"
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namespace Test
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def expectationFailure (desc: String) (error: String): LSpec.TestSeq := LSpec.test desc (LSpec.ExpectationFailure "ok _" error)
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def assertUnreachable (message: String): LSpec.TestSeq := LSpec.check message false
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def parseFailure (error: String) := expectationFailure "parse" error
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def elabFailure (error: String) := expectationFailure "elab" error
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def runCoreMSeq (env: Environment) (coreM: CoreM LSpec.TestSeq) (options: Array String := #[]): IO LSpec.TestSeq := do
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let coreContext: Core.Context ← createCoreContext options
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match ← (coreM.run' coreContext { env := env }).toBaseIO with
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| .error exception =>
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return LSpec.test "Exception" (s!"internal exception #{← exception.toMessageData.toString}" = "")
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| .ok a => return a
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def runMetaMSeq (env: Environment) (metaM: MetaM LSpec.TestSeq): IO LSpec.TestSeq :=
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runCoreMSeq env metaM.run'
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def runTermElabMInMeta { α } (termElabM: Lean.Elab.TermElabM α): Lean.MetaM α :=
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termElabM.run' (ctx := defaultElabContext)
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def runTermElabMSeq (env: Environment) (termElabM: Elab.TermElabM LSpec.TestSeq): IO LSpec.TestSeq :=
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runMetaMSeq env $ termElabM.run' (ctx := defaultElabContext)
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def exprToStr (e: Expr): Lean.MetaM String := toString <$> Meta.ppExpr e
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def strToTermSyntax [Monad m] [MonadEnv m] (s: String): m Syntax := do
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let .ok stx := Parser.runParserCategory
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(env := ← MonadEnv.getEnv)
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(catName := `term)
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(input := s)
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(fileName := filename) | panic! s!"Failed to parse {s}"
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return stx
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def parseSentence (s: String): Elab.TermElabM Expr := do
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let stx ← match Parser.runParserCategory
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(env := ← MonadEnv.getEnv)
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(catName := `term)
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(input := s)
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(fileName := filename) with
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| .ok syn => pure syn
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| .error error => throwError "Failed to parse: {error}"
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Elab.Term.elabTerm (stx := stx) .none
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def runTacticOnMVar (tacticM: Elab.Tactic.TacticM Unit) (goal: MVarId): Elab.TermElabM (List MVarId) := do
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let (_, newGoals) ← tacticM { elaborator := .anonymous } |>.run { goals := [goal] }
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return newGoals.goals
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def mvarUserNameAndType (mvarId: MVarId): MetaM (Name × String) := do
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let name := (← mvarId.getDecl).userName
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let t ← exprToStr (← mvarId.getType)
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return (name, t)
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-- Monadic testing
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abbrev TestT := StateT LSpec.TestSeq
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def addTest [Monad m] (test: LSpec.TestSeq): TestT m Unit := do
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set $ (← get) ++ test
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def runTest [Monad m] (t: TestT m Unit): m LSpec.TestSeq :=
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Prod.snd <$> t.run LSpec.TestSeq.done
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def runTestTermElabM (env: Environment) (t: TestT Elab.TermElabM Unit):
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IO LSpec.TestSeq :=
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runTermElabMSeq env $ runTest t
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def cdeclOf (userName: Name) (type: Expr): Condensed.LocalDecl :=
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{ userName, type }
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def buildGoal (nameType: List (String × String)) (target: String) (userName?: Option String := .none):
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Protocol.Goal :=
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{
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userName?,
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target := { pp? := .some target},
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vars := (nameType.map fun x => ({
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userName := x.fst,
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type? := .some { pp? := .some x.snd },
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})).toArray
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}
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end Test
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end Pantograph
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