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Pantograph
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Code Issues 6 Pull Requests 2 Packages Projects Releases 1 Wiki Activity

feat: Specify type in echo

pull/68/head
Leni Aniva 2024-03-31 15:55:08 -07:00
parent f939388dbf
commit 2802cc204f
8 changed files with 38 additions and 25 deletions
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2
Pantograph.lean
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@ -71,7 +71,7 @@ def execute (command: Protocol.Command): MainM Lean.Json := do
Environment.addDecl args
expr_echo (args: Protocol.ExprEcho): MainM (CR Protocol.ExprEchoResult) := do
let state ← get
exprEcho args.expr state.options
exprEcho args.expr args.type state.options
options_set (args: Protocol.OptionsSet): MainM (CR Protocol.OptionsSetResult) := do
let state ← get
let options := state.options

6
Pantograph/Environment.lean
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@ -98,13 +98,13 @@ def inspect (args: Protocol.EnvInspect) (options: @&Protocol.Options): CoreM (Pr
def addDecl (args: Protocol.EnvAdd): CoreM (Protocol.CR Protocol.EnvAddResult) := do
let env ← Lean.MonadEnv.getEnv
let tvM: Elab.TermElabM (Except String (Expr × Expr)) := do
let type ← match syntax_from_str env args.type with
let type ← match parseTerm env args.type with
| .ok syn => do
match ← syntax_to_expr syn with
match ← elabTerm syn with
| .error e => return .error e
| .ok expr => pure expr
| .error e => return .error e
let value ← match syntax_from_str env args.value with
let value ← match parseTerm env args.value with
| .ok syn => do
try
let expr ← Elab.Term.elabTerm (stx := syn) (expectedType? := .some type)

25
Pantograph/Library.lean
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@ -109,21 +109,34 @@ def envAdd (name: String) (type: String) (value: String) (isTheorem: Bool):
Lean.CoreM (Protocol.CR Protocol.EnvAddResult) :=
Environment.addDecl { name, type, value, isTheorem }
/-- This must be a TermElabM since the parsed expr contains extra information -/
def exprParse (s: String): Lean.Elab.TermElabM (Protocol.CR Lean.Expr) := do
def typeParse (typeParse: String): Lean.Elab.TermElabM (Protocol.CR Lean.Expr) := do
let env ← Lean.MonadEnv.getEnv
let syn ← match syntax_from_str env s with
let syn ← match parseTerm env typeParse with
| .error str => return .error $ errorI "parsing" str
| .ok syn => pure syn
match ← syntax_to_expr syn with
match ← elabType syn with
| .error str => return .error $ errorI "elab" str
| .ok expr => return .ok expr
/-- This must be a TermElabM since the parsed expr contains extra information -/
def exprParse (exprStr: String) (expectedType?: Option String := .none): Lean.Elab.TermElabM (Protocol.CR Lean.Expr) := do
let env ← Lean.MonadEnv.getEnv
let expectedType? ← match ← expectedType?.mapM typeParse with
| .none => pure $ .none
| .some (.ok t) => pure $ .some t
| .some (.error e) => return .error e
let syn ← match parseTerm env exprStr with
| .error str => return .error $ errorI "parsing" str
| .ok syn => pure syn
match ← elabTerm syn expectedType? with
| .error str => return .error $ errorI "elab" str
| .ok expr => return .ok expr
@[export pantograph_expr_echo_m]
def exprEcho (expr: String) (options: @&Protocol.Options):
def exprEcho (expr: String) (expectedType?: Option String := .none) (options: @&Protocol.Options):
Lean.CoreM (Protocol.CR Protocol.ExprEchoResult) := do
let termElabM: Lean.Elab.TermElabM _ := do
let expr ← match ← exprParse expr with
let expr ← match ← exprParse expr expectedType? with
| .error e => return .error e
| .ok expr => pure expr
try

1
Pantograph/Protocol.lean
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@ -98,6 +98,7 @@ structure StatResult where
-- Return the type of an expression
structure ExprEcho where
expr: String
type: Option String
deriving Lean.FromJson
structure ExprEchoResult where
expr: Expression

9
Pantograph/Serial.lean
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@ -25,23 +25,22 @@ def instantiateAll (e: Lean.Expr) : Lean.MetaM Lean.Expr := do
--- Input Functions ---
/-- Read syntax object from string -/
def syntax_from_str (env: Environment) (s: String): Except String Syntax :=
def parseTerm (env: Environment) (s: String): Except String Syntax :=
Parser.runParserCategory
(env := env)
(catName := `term)
(input := s)
(fileName := "<stdin>")
/-- Parse a syntax object. May generate additional metavariables! -/
def syntax_to_expr_type (syn: Syntax): Elab.TermElabM (Except String Expr) := do
def elabType (syn: Syntax): Elab.TermElabM (Except String Expr) := do
try
let expr ← Elab.Term.elabType syn
return .ok expr
catch ex => return .error (← ex.toMessageData.toString)
def syntax_to_expr (syn: Syntax): Elab.TermElabM (Except String Expr) := do
def elabTerm (syn: Syntax) (expectedType? : Option Expr := .none): Elab.TermElabM (Except String Expr) := do
try
let expr ← Elab.Term.elabTerm (stx := syn) (expectedType? := .none)
let expr ← Elab.Term.elabTerm (stx := syn) expectedType?
return .ok expr
catch ex => return .error (← ex.toMessageData.toString)

8
Test/Metavar.lean
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@ -17,12 +17,12 @@ def addTest (test: LSpec.TestSeq): TestM Unit := do
def test_instantiate_mvar: TestM Unit := do
let env ← Lean.MonadEnv.getEnv
let value := "@Nat.le_trans 2 2 5 (@of_eq_true (@LE.le Nat instLENat 2 2) (@eq_true (@LE.le Nat instLENat 2 2) (@Nat.le_refl 2))) (@of_eq_true (@LE.le Nat instLENat 2 5) (@eq_true_of_decide (@LE.le Nat instLENat 2 5) (@Nat.decLe 2 5) (@Eq.refl Bool Bool.true)))"
let syn ← match syntax_from_str env value with
let syn ← match parseTerm env value with
| .ok s => pure $ s
| .error e => do
addTest $ assertUnreachable e
return ()
let expr ← match ← syntax_to_expr syn with
let expr ← match ← elabTerm syn with
| .ok expr => pure $ expr
| .error e => do
addTest $ assertUnreachable e
@ -36,14 +36,14 @@ def test_instantiate_mvar: TestM Unit := do
def startProof (expr: String): TestM (Option GoalState) := do
let env ← Lean.MonadEnv.getEnv
let syn? := syntax_from_str env expr
let syn? := parseTerm env expr
addTest $ LSpec.check s!"Parsing {expr}" (syn?.isOk)
match syn? with
| .error error =>
IO.println error
return Option.none
| .ok syn =>
let expr? ← syntax_to_expr_type syn
let expr? ← elabType syn
addTest $ LSpec.check s!"Elaborating" expr?.isOk
match expr? with
| .error error =>

4
Test/Proofs.lean
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@ -32,14 +32,14 @@ def startProof (start: Start): TestM (Option GoalState) := do
| .none =>
return Option.none
| .expr expr =>
let syn? := syntax_from_str env expr
let syn? := parseTerm env expr
addTest $ LSpec.check s!"Parsing {expr}" (syn?.isOk)
match syn? with
| .error error =>
IO.println error
return Option.none
| .ok syn =>
let expr? ← syntax_to_expr_type syn
let expr? ← elabType syn
addTest $ LSpec.check s!"Elaborating" expr?.isOk
match expr? with
| .error error =>

8
Test/Serial.lean
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@ -55,8 +55,8 @@ def test_sexp_of_expr (env: Environment): IO LSpec.TestSeq := do
]
let termElabM: Elab.TermElabM LSpec.TestSeq := entries.foldlM (λ suites (source, target) => do
let env ← MonadEnv.getEnv
let s := syntax_from_str env source |>.toOption |>.get!
let expr := (← syntax_to_expr s) |>.toOption |>.get!
let s := parseTerm env source |>.toOption |>.get!
let expr := (← elabTerm s) |>.toOption |>.get!
let test := LSpec.check source ((← serialize_expression_ast expr) = target)
return LSpec.TestSeq.append suites test) LSpec.TestSeq.done
let metaM := termElabM.run' (ctx := defaultTermElabMContext)
@ -67,8 +67,8 @@ def test_instance (env: Environment): IO LSpec.TestSeq := do
let metaM: MetaM LSpec.TestSeq := do
let env ← MonadEnv.getEnv
let source := "λ x y: Nat => HAdd.hAdd Nat Nat Nat (instHAdd Nat instAddNat) x y"
let s := syntax_from_str env source |>.toOption |>.get!
let _expr := (← runTermElabMInMeta <| syntax_to_expr s) |>.toOption |>.get!
let s := parseTerm env source |>.toOption |>.get!
let _expr := (← runTermElabMInMeta <| elabTerm s) |>.toOption |>.get!
return LSpec.TestSeq.done
runMetaMSeq env metaM