f47dfe9e7f
Drastically speeds up `isTracingEnabledFor` in the common case, which has evolved from "no options set" to "`Elab.async` and probably some linter options set but no `trace`". ## Breaking changes `Lean.Options` is now an opaque type. The basic but not all of the `KVMap` API has been redefined on top of it.
67 lines
2.6 KiB
Text
67 lines
2.6 KiB
Text
import Lean.Parser
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/-! Reprint file after removing all parentheses and then passing it through the parenthesizer -/
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open Lean
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open Std.Format open Std
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def unparenAux (parens body : Syntax) : Syntax :=
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match parens.getHeadInfo, body.getHeadInfo, body.getTailInfo, parens.getTailInfo with
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| SourceInfo.original lead _ _ _, SourceInfo.original _ pos trail pos',
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SourceInfo.original endLead endPos _ endPos', SourceInfo.original _ _ endTrail _ =>
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body.setHeadInfo (SourceInfo.original lead pos trail pos') |>.setTailInfo (SourceInfo.original endLead endPos endTrail endPos')
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| _, _, _, _ => body
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partial def unparen : Syntax → Syntax
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-- don't remove parentheses in syntax quotations, they might be semantically significant
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| stx => if stx.isOfKind `Lean.Parser.Term.stxQuot then stx
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else match stx with
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| `(($stx')) => unparenAux stx $ unparen stx'
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| `(level|($stx')) => unparenAux stx $ unparen stx'
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| _ => stx.modifyArgs $ Array.map unparen
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def clearHygieneInfo (stx : Syntax) : Syntax :=
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Id.run <| stx.replaceM fun s => do
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if s.isOfKind hygieneInfoKind then
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return some <| s.setArg 0 (mkIdent .anonymous)
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else
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return none
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unsafe def main (args : List String) : IO Unit := do
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let (debug, f) : Bool × String := match args with
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| [f, "-d"] => (true, f)
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| [f] => (false, f)
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| _ => panic! "usage: file [-d]";
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let env ← mkEmptyEnvironment;
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let stx ← Lean.Parser.testParseFile env args.head!;
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let header := stx.raw.getArg 0;
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let some s ← pure header.reprint | throw $ IO.userError "header reprint failed";
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IO.print s;
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let cmds := (stx.raw.getArg 1).getArgs;
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cmds.forM $ fun cmd => do
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let cmd := unparen cmd;
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let (cmd, _) ← (tryFinally (PrettyPrinter.parenthesizeCommand cmd) printTraces).toIO { options := Options.empty.set `trace.PrettyPrinter.parenthesize debug, fileName := "", fileMap := default } { env := env };
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let some s ← pure cmd.reprint | throw $ IO.userError "cmd reprint failed";
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IO.print s
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#eval main ["../../../src/Init/Prelude.lean"]
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def check (stx : Syntax) : CoreM Unit := do
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let stx' := unparen stx;
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let stx' ← clearHygieneInfo <$> PrettyPrinter.parenthesizeTerm stx';
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let f ← PrettyPrinter.formatTerm stx';
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IO.println f;
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if (clearHygieneInfo stx != stx') then
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throwError "reparenthesization failed"
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open Lean
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syntax:80 term " ^~ " term:80 : term
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syntax:70 term " *~ " term:71 : term
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/-- info: ((1 + 2) *~ 3) ^~ 4 -/
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#guard_msgs in
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#eval check $ Unhygienic.run `(((1 + 2) *~ 3) ^~ 4)
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/-- info: opaque foo.1 (a.1 := (by exact 1)) : True.1 -/
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#guard_msgs in
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#eval check $ Unhygienic.run `(opaque foo (a := (by exact 1)) : True)
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