I may have hit a compiler bug. If I use the HTML DSL in my project with tbody { tr{ td{ }}} , the mo...

# compiler

[bjonnh]

I may have hit a compiler bug. If I use the HTML DSL in my project with tbody { tr{ td{ }}} , the more tr I add in my code , the slower it compiles. Having one it compiles in ~30s, adding another one it takes 1min30, and I stopped it after 4 min when I have three… (edited)

[bjonnh]

tr {
    td { +"Smiles" }
    td { +molecule.smiles }
}

This is the kind of block I add  molecule.smiles is a String

[bjonnh]

It happens both with 1.3.72 and 1.4M1

[bjonnh]

How can I disable the new inference engine in gradle?

[bjonnh]

I can share the project privately if that can help finding why the compiler hangs on such simple code

[bjonnh]

if I remove those few lines of the generatorHTML, it goes down to 2s build time…

[bjonnh]

https://pastebin.com/vj0GyDCS < the DSL part

[bjonnh]

even a much simpler version takes >1min to compile…

[bjonnh]

I tried to say "as String" to help the inference engine but that doesn't help

[mikhail.zarechenskiy]

How can I disable the new inference engine in gradle?

You can add -XXLanguage:-NewInference free compiler key to your build.gradle

compileKotlin {
    kotlinOptions {
        freeCompilerArgs += ["-XXLanguage:-NewInference"]
    }
}

[mikhail.zarechenskiy]

I can share the project privately if that can help finding why the compiler hangs on such simple code

Yes, please 🙏
You can add some files that will be visible only for you and us in YouTrack, see https://www.jetbrains.com/help/youtrack/incloud/Set-Visibility-of-Issue-or-Comment.html#visibility-attachments

[bjonnh]

I'm working on a minimal non working example

[bjonnh]

what is easier, I just give you the kt file (dependency will only be kotlinx html dsl)

[bjonnh]

or I make a full project (this takes ages with intellij, but I can do that if that helps)

[bjonnh]

there are no dependencies to my code anymore

[bjonnh]

https://youtrack.jetbrains.com/issue/KT-38489

[ilya.chernikov]

@bjonnh I have found so far that the problem reproducible with kotlinx-html 0.7.1, and not reproducible with older versions, e.g. 0.6.11. So while we're investigating it, maybe you can use the older version.

[bjonnh]

Thanks! I switched to velocity as I needed that to work quickcly. I mostly posted that because I wanted the compiler to not have bugs 😄

[ilya.chernikov]

Thanks! That's very much appreciated! 🙂

[MrPowerGamerBR]

Sorry for reviving an old conversation, but I hope this is fixed soon, I got hit with that bug and one of my scripts were taking 30m (!) to compile, were before it did only take 2m at worst.

[bjonnh]

@MrPowerGamerBR you can try to use an earlier version of Kotlin HTML DSL

[bjonnh]

but the bug is corrected and the fix should appear in the next version of Kotlin

[bjonnh]

Ilya also found out that compiling with -Xno-inline solve temporarily the issue

[bjonnh]

It will be in 1.4-M3 if you are bleeding-edge