Flow•5mo ago

Giovanni S | Flow (2024-07-25)

I'm getting some weird errors running a load<@AnyResource> in the latest pre-release CLI 🧵

10 Replies

Needle•5mo ago

I've created a thread for your message. Please continue any relevant discussion in this thread. You can rename this thread using /title <new title> If this is a technical question that others may benefit from, considering also asking it on Stackoverflow: https://stackoverflow.com/questions/ask?tags=onflow-cadence

Giovanni SOP•5mo ago

The test here - https://github.com/onflow/hybrid-custody/actions/runs/10086158860/job/27888252177?pr=170#step:5:73 Previously passed with the same code using v1.21.0-cadence-v1.0.0-preview.27, but fails with v1.21.0-cadence-v1.0.0-preview.31 with the message:

[Error Code: 1101] cadence runtime error: Execution failed:\nerror: invalid transfer of value: expected `<<invalid>>`, got `HybridCustody.Manager

[Error Code: 1101] cadence runtime error: Execution failed:\nerror: invalid transfer of value: expected `<<invalid>>`, got `HybridCustody.Manager

The txn is failing on loading the HybridCustody.Manager resource as @AnyResource with this txn

import "HybridCustody"
import "Burner"

transaction {
    prepare(acct: auth(Storage) &Account) {
        let m <- acct.storage.load<@AnyResource>(from: HybridCustody.ManagerStoragePath)
            ?? panic("no resource found in manager storage path")
        Burner.burn(<- m)
    }
}

import "HybridCustody"
import "Burner"

transaction {
    prepare(acct: auth(Storage) &Account) {
        let m <- acct.storage.load<@AnyResource>(from: HybridCustody.ManagerStoragePath)
            ?? panic("no resource found in manager storage path")
        Burner.burn(<- m)
    }
}

The message line expected <<invalid>> when trying to load @AnyResource is odd considering all other non-load test cases succeed So looks like the txn succeeds in .27 but starts failing in .28 which had a Cadence update to Cadence v1.0.0-preview.35. I don't see anything in that version's release notes that would lead me to believe there's a significant change in load behavior. Does this look like a bug? cc @turbolent @Supun

turbolent•5mo ago

Hmm, that looks odd. Do you have this as a reproducer somewhere? (e.g. test in repo) ah, sorry, I didn't see the link could you please try with the versions in between, i.e. 28, 29, 30? that way we can maybe better pinpoint where the regression was introduced

Giovanni SOP•5mo ago

27 succeeds, 28, 29, 30, 31 all fail with the same output

turbolent•5mo ago

great thanks! I guess it should be possible to check out that branch locally and run the tests right? I'll try to replace the Cadence version and see what changed

Giovanni SOP•5mo ago

Made an issue here - https://github.com/onflow/cadence/issues/3491

turbolent•5mo ago

@Giovanni S and I guess even main of https://github.com/onflow/hybrid-custody fails with the newer CLI/Cadence versions?

Giovanni SOP•5mo ago

Yes it does. I also rolled back CLI version in https://github.com/onflow/hybrid-custody/pull/170/commits/dced96ebdf964c0b0bd21a96b64779dcd6027ec1 and the successive CI run passed https://github.com/onflow/hybrid-custody/actions/runs/10100835346/job/27933086660 Wa able to repro on migrationnet in transaction 55ac88fd65ed289e67d5aa960a1f6f3d4e8ab9b702f2687e3cab65b916d3e3e0

turbolent•5mo ago

Supun already has a fix https://github.com/onflow/cadence/pull/3493 🎉 👏

Giovanni SOP•5mo ago

Awesome, thank you!

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Giovanni S | Flow (2024-07-25)