53ed233f38
This PR starts on the process of cleaning up variable names across List/Array/Vector. For now, we just rename "numerical index" variables in one file. This is driven by a custom linter.
46 lines
1.6 KiB
Text
46 lines
1.6 KiB
Text
set_option linter.indexVariables true
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#guard_msgs in
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example (xs : List Nat) (i : Nat) (h) : xs[i] = xs[i] := rfl
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/--
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warning: Forbidden variable appearing as an index: use `i`, `j`, or `k`: m
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note: this linter can be disabled with `set_option linter.indexVariables false`
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---
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warning: Forbidden variable appearing as an index: use `i`, `j`, or `k`: m
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note: this linter can be disabled with `set_option linter.indexVariables false`
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-/
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#guard_msgs in
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example (xs : List Nat) (m : Nat) (h) : xs[m] = xs[m] := rfl
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#guard_msgs in
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example (xs : List Nat) (i j : Nat) (h) : xs[i + j] = xs[i + j] := rfl
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#guard_msgs in
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example (xs : List Nat) (m n : Nat) (h) : xs[m + n] = xs[m + n] := rfl
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#guard_msgs in
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example (xs : List Nat) (i : Nat) : xs[i]? = xs[i]? := rfl
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/--
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warning: Forbidden variable appearing as an index: use `i`, `j`, or `k`: m
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note: this linter can be disabled with `set_option linter.indexVariables false`
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---
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warning: Forbidden variable appearing as an index: use `i`, `j`, or `k`: m
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note: this linter can be disabled with `set_option linter.indexVariables false`
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-/
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#guard_msgs in
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example (xs : List Nat) (m : Nat) : xs[m]? = xs[m]? := rfl
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#guard_msgs in
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example (xs : List Nat) (i : Nat) : xs.take i = xs.take i := rfl
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/--
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warning: Forbidden variable appearing as an index: use `i`, `j`, or `k`: m
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note: this linter can be disabled with `set_option linter.indexVariables false`
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---
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warning: Forbidden variable appearing as an index: use `i`, `j`, or `k`: m
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note: this linter can be disabled with `set_option linter.indexVariables false`
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-/
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#guard_msgs in
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example (xs : List Nat) (m : Nat) : xs.drop m = xs.drop m := rfl
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