d1ec806834
This PR improves the error messages produced by invalid pattern-match alternatives and improves parity in error placement between pattern-matching tactics and elaborators. Closes #7170
45 lines
1.4 KiB
Text
45 lines
1.4 KiB
Text
inductionGen.lean:23:2-23:14: error: Invalid target: Index in target's type is not a variable (consider using the `cases` tactic instead)
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n + 1
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case cons
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α : Type u_1
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n : Nat
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ys : Vec α (n + 1)
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x : α
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xs : Vec α n
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h : Vec.cons x xs = ys
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⊢ (Vec.cons x xs).head = ys.head
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inductionGen.lean:25:8-25:11: warning: declaration uses 'sorry'
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case natVal
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α : ExprType
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a✝ : Nat
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b : Expr ExprType.nat
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h : Expr.natVal a✝ = b
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⊢ eval (constProp (Expr.natVal a✝)) = eval b
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case boolVal
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α : ExprType
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a✝ : Bool
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b : Expr ExprType.bool
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h : Expr.boolVal a✝ = b
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⊢ eval (constProp (Expr.boolVal a✝)) = eval b
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case eq
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α α✝ : ExprType
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a✝¹ a✝ : Expr α✝
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a_ih✝¹ : ∀ (b : Expr α✝), a✝¹ = b → eval (constProp a✝¹) = eval b
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a_ih✝ : ∀ (b : Expr α✝), a✝ = b → eval (constProp a✝) = eval b
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b : Expr ExprType.bool
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h : a✝¹.eq a✝ = b
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⊢ eval (constProp (a✝¹.eq a✝)) = eval b
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case add
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α : ExprType
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a✝¹ a✝ : Expr ExprType.nat
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a_ih✝¹ : ∀ (b : Expr ExprType.nat), a✝¹ = b → eval (constProp a✝¹) = eval b
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a_ih✝ : ∀ (b : Expr ExprType.nat), a✝ = b → eval (constProp a✝) = eval b
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b : Expr ExprType.nat
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h : a✝¹.add a✝ = b
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⊢ eval (constProp (a✝¹.add a✝)) = eval b
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inductionGen.lean:64:8-64:11: warning: declaration uses 'sorry'
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inductionGen.lean:78:2-78:27: error: Invalid target: Target (or one of its indices) occurs more than once
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n
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