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iter: fix spurious TestPullDoubleYield[2] successes
The two tests confused a nil pointer panic with the panic from a double call to yield. Change-Id: I0040e60cf4b702a92825d308db1201a85f164009 Reviewed-on: https://go-review.googlesource.com/c/go/+/617917 Reviewed-by: Ian Lance Taylor <iant@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
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@ -193,7 +193,11 @@ func doDoubleNext2() Seq2[int, int] {
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}
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func TestPullDoubleYield(t *testing.T) {
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_, stop := Pull(storeYield())
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next, stop := Pull(storeYield())
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next()
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if yieldSlot == nil {
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t.Fatal("yield failed")
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}
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defer func() {
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if recover() != nil {
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yieldSlot = nil
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@ -218,7 +222,11 @@ func storeYield() Seq[int] {
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var yieldSlot func(int) bool
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func TestPullDoubleYield2(t *testing.T) {
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_, stop := Pull2(storeYield2())
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next, stop := Pull2(storeYield2())
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next()
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if yieldSlot2 == nil {
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t.Fatal("yield failed")
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}
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defer func() {
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if recover() != nil {
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yieldSlot2 = nil
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