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tools/flow: add test case for issue 2559
The added CUE takes 7s to test with tools/flow or run with `cue cmd`,
as it's adapted from https://github.com/MarcWort/example-cue
to show the worst case scenario of tools/flow being slow by nesting
many references to non-task nodes which do some underlying work.
Thanks to Marc W for providing the original reproducer on GitHub.
For #2559.
Signed-off-by: Daniel Martí <mvdan@mvdan.cc>
Change-Id: I25543e7c22b1dda6a8a8528198d2d7b4a63bb411
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1198565
Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
Reviewed-by: Roger Peppe <rogpeppe@gmail.com>
+104
+104
tools/flow/testdata/issue2559.txtar
+104
tools/flow/testdata/issue2559.txtar
···
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#IgnoreConcrete: true
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#InferTasks: true
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-- in.cue --
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package p
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import (
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"list"
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"tool/cli"
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)
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root: test: cli.Print & { text: "\(len(list.FlattenN(indir1, 10)))" }
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indir1: [if len(indir2) > 0 { indir2 }]
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indir2: [if len(indir3) > 0 { indir3 }]
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indir3: [if len(indir4) > 0 { indir4 }]
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indir4: indir5
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indir5: indir6
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indir6: indir7
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indir7: [for i in list.Range(1,20,4) {
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#pair & {
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one: n: 0
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two: n: i
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}
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}]
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#pair: {
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one: #unit & {
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n: <25
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}
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two: #unit & {
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n: >=one.n
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if n == one.n {
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n: <= one.n
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}
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}
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if two.n > one.n {
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one: n: 0
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}
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}
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#unit: {
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n: int
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#padding: {in: <10, out: "0\(in)"} | {in: >=10, out: "\(in)"}
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str: (#padding & {in: n}).out
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}
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-- out/run/errors --
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-- out/run/t0 --
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graph TD
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t0("root.test [Ready]")
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-- out/run/t1 --
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graph TD
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t0("root.test [Terminated]")
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-- out/run/t1/value --
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{
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$id: "tool/cli.Print"
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stdout: "foo"
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text: "5"
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}
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-- out/run/t1/stats --
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Leaks: 0
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Freed: 262168
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Reused: 262148
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Allocs: 20
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Retain: 352
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Unifications: 187362
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Conjuncts: 902602
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Disjuncts: 262432
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-- out/run/stats/totals --
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Leaks: 0
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Freed: 262168
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Reused: 262148
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Allocs: 20
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Retain: 352
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Unifications: 187362
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Conjuncts: 902602
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Disjuncts: 262432
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-- out/run/t2 --
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graph TD
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t0("root.prepare [Terminated]")
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t1("root.run [Terminated]")
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t1-->t0
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-- out/run/t2/value --
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{
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$id: "run"
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stdout: "foo"
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env: {
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input: "foo"
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}
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}
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-- out/run/t2/stats --
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Leaks: 0
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Freed: 12
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Reused: 12
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Allocs: 0
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Retain: 0
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Unifications: 12
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Conjuncts: 20
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Disjuncts: 12