module ABI issue

[Simon]

Hi, guys,

I have this module:

module de.simonthum.ccalc "1.0.0" {
    import ceylon.numeric "1.2.1";
    import com.athaydes.parcey "0.4.0";
}

In ceylon 1.2.3 (few weeks old) I get: Version 0.4.0 of module com.athaydes.parcey was compiled by an incompatible version of the compiler (binary version 8. of module is not compatible with binary version 9. of this compiler)

Behold the fix:

native("jvm") module de.simonthum.ccalc "1.0.0" {
    import ceylon.numeric "1.2.1";
    import com.athaydes.parcey "0.4.0";
}

Anyone care to explain this to me? Was there a js-only ABI break or is it a bug?

[John Vasileff]

Yes, that’s right. For JS 1.2.3, imports must be compiled with 1.2.3 (perhaps 1.2.2 modules will work as well by the time 1.2.3 is released, not sure.) Likewise, for 1.2.2, you need modules compiled with 1.2.2.

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[Lucas Werkmeister]

I’m pretty sure that so far we’ve kept backwards compatibility between 1.2.2 and 1.2.3. At least, the two breaking changes I’m aware of include code to keep backwards compatibility, and so it would be weird if we just gave that up… :)

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[John Vasileff]

Well, it doesn’t work.

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[Lucas Werkmeister]

What, between 1.2.2 and 1.2.3? I thought this issue was about 1.2.1.

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[John Vasileff]

My understanding is that the pieces to make it work might be in place (for 1.2.3 to support 1.2.2 modules), but aren’t yet complete:

$ ceylon run-js simple

module.js:338

          ^

Error: Cannot find module 'ceylon/language/1.2.2/ceylon.language-1.2.2'

ceylon run-js: Node process exited with non-zero exit code: 1

John

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[Simon]

OK, good to know, thank you!