Field "{c}" not allowed

[cueckoo]

Originally opened by @monyxie in cuelang/cue#559

Hello all.

I'm experimenting struct comprehension and I can't get this to work:

$ cue version
cue version v0.3.0-alpha4 linux/amd64

$ cat test.cue
import "strings"

#User: {
    tags_str: string
    tags_map: {
         for k, v in strings.Split(tags_str, " ") {
             "\(v)": string
         }
         "{a}": string
    }
}

user: {
    #User
    tags_str: "b {c}"
}

$ cue eval test.cue
user.tags_map: field `"{c}"` not allowed:
    ./test.cue:7:15
    ./test.cue:8:51
    ./test.cue:9:14
    ./test.cue:16:5

If I remove the braces around c, it works:

$ cat test.cue
import "strings"

#User: {
    tags_str: string
    tags_map: {
         for k, v in strings.Split(tags_str, " ") {
             "\(v)": string
         }
         "{a}": string
    }
}

user: {
    #User
    tags_str: "b c"
}

$ cue eval test.cue
import "strings"

#User: {
    tags_str: string
    tags_map: {
        for k, v in strings.Split(tags_str, " ") {
            "\(v)": string
        }
        "{a}": string
    }
}
user: {
    tags_str: "b c"
    tags_map: {
        "{a}": string
        b:     string
        c:     string
    }
}

Is this the expected behaviour?

[cueckoo]

Original reply by @myitcv in cuelang/cue#559 (comment)

This looks like a bug to me. I will reference this in a new issue.

[cueckoo]

Original reply by @monyxie in cuelang/cue#559 (comment)

Thank you for the quick reply!

[cueckoo]

Original reply by @mpvl in cuelang/cue#559 (comment)

It seems that GitHub doesn't cross-reference issues with discussions. This has since been closed.