Many of our tests in `tests/lean/run/` produce output from `#eval` (or `#check`) statements, that is then ignored. This PR tries to capture all the useful output using `#guard_msgs`. I've only done a cursory check that the output is still sane --- there is a chance that some "unchecked" tests have already accumulated regressions and this just cements them! In the other direction, I did identify two rotten tests: * a minor one in `setStructInstNotation.lean`, where a comment says `Set Nat`, but `#check` actually prints `?_`. Weird? * `CompilerProbe.lean` is generating empty output, apparently indicating that something is broken, but I don't know the signficance of this file. In any case, I'll ask about these elsewhere. (This started by noticing that a recent `grind` test file had an untested `trace_state`, and then got carried away.)
89 lines
2.1 KiB
Text
89 lines
2.1 KiB
Text
import Lean.CoreM
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open Lean
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structure MyState :=
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(trace_state : TraceState := {})
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(s : Nat := 0)
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abbrev M := CoreM
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def tst1 : M Unit :=
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do trace[module] (m!"hello" ++ MessageData.nest 9 (m!"\n" ++ "world"));
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trace[module.aux] "another message";
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pure ()
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def tst2 (b : Bool) : M Unit :=
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withTraceNode `module (fun _ => return "message") do
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tst1;
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trace[bughunt] "at test2";
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if b then throwError "error";
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tst1;
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pure ()
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partial def ack : Nat → Nat → Nat
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| 0, n => n+1
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| m+1, 0 => ack m 1
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| m+1, n+1 => ack m (ack (m+1) n)
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def slow (b : Bool) : Nat :=
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ack 4 (cond b 0 1)
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def tst3 (b : Bool) : M Unit :=
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do withTraceNode `module.slow (fun _ => return m!"slow: {slow b}") do {
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tst2 b;
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tst1
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};
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trace[bughunt] "at end of tst3";
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-- Messages are computed lazily. The following message will only be computed
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-- if `trace.slow is active.
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trace[slow] (m!"slow message: " ++ toString (slow b))
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-- This is true even if it is a monad computation:
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trace[slow] (m!"slow message: " ++ (← pure (toString (slow b))))
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def run (x : M Unit) : M Unit :=
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withReader
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(fun ctx =>
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-- Try commeting/uncommeting the following `setBool`s
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let opts := ctx.options;
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let opts := opts.setBool `trace.module true;
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-- let opts := opts.setBool `trace.module.aux false;
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let opts := opts.setBool `trace.bughunt true;
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-- let opts := opts.setBool `trace.slow true;
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{ ctx with options := opts })
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(tryCatch (tryFinally x printTraces) (fun _ => IO.println "ERROR"))
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/--
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info: [module] message
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[module] hello
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world
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[bughunt] at test2
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ERROR
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[module] message
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[module] hello
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world
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[bughunt] at test2
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-/
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#guard_msgs in
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#eval run (tst3 true)
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/--
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info: [module] message
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[module] hello
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world
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[bughunt] at test2
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[module] hello world
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[module] hello
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world
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[bughunt] at end of tst3
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[module] message
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[module] hello
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world
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[bughunt] at test2
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[module] hello world
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[module] hello
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world
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[bughunt] at end of tst3
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-/
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#guard_msgs in
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#eval run (tst3 false)
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