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bug: self-referential types crash the VM #2008

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deelawn opened this issue Apr 30, 2024 · 0 comments · May be fixed by #2081
Open

bug: self-referential types crash the VM #2008

deelawn opened this issue Apr 30, 2024 · 0 comments · May be fixed by #2081
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@ltzmaxwell
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🐞 bug Something isn't working 📦 🤖 gnovm Issues or PRs gnovm related
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🏗4️⃣ test4.gno.land

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@deelawn
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deelawn commented Apr 30, 2024

Self-referential types that are prohibited in go can cause the VM to crash. I think we need to check somewhere in the preprocessor that for this. Here is the example to reproduce the issue:

package main

type S struct {
        T S
}

func main() {
        var a, b S
        println(a == b)
}
@deelawn deelawn added 🐞 bug Something isn't working 📦 🤖 gnovm Issues or PRs gnovm related labels Apr 30, 2024
@deelawn deelawn mentioned this issue Apr 30, 2024
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@Kouteki Kouteki mentioned this issue May 7, 2024
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@ltzmaxwell ltzmaxwell self-assigned this May 7, 2024
@Kouteki Kouteki added this to the 🏗4️⃣ test4.gno.land milestone May 10, 2024
@ltzmaxwell ltzmaxwell linked a pull request May 13, 2024 that will close this issue
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@zivkovicmilos zivkovicmilos linked a pull request May 15, 2024 that will close this issue
fix(gnovm): prevent cyclic references in struct declarations #2081
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5 tasks
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@ltzmaxwell ltzmaxwell

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🐞 bug Something isn't working 📦 🤖 gnovm Issues or PRs gnovm related
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🧙‍♂️gno.land core team
Status: In Progress
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🏗4️⃣ test4.gno.land
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fix(gnovm): prevent cyclic references in struct declarations ltzmaxwell/gno
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@deelawn @ltzmaxwell @Kouteki