Re: Building for Android

[Panicz Maciej Godek <godek.maciek@gmail.com>]

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I've noticed that, in my code, I've been using the names "hash-code" and
"java.lang.System:identity-hash-code".

So, I replaced them with "hashCode" and "identityHashCode", respectively -
because it would make sense that the hash function wasn't properly
overridden.

But that didn't help: everything is exactly the same. It also puzzles me:
why, instead of actually calling java.lang.System's static method, the
methods of gnu.list.AbstractSequence are being called? (The line numbers
seem to match, but the top of the stack trace is a mystery)

sob., 22 paź 2022, 14:08 użytkownik Panicz Maciej Godek <
godek.maciek@gmail.com> napisał:

> It perhaps might have something to do with the fact, that I override the
> "cons" operator with my own one, which uses eq? as equals, and Java's
> default hash functions for objects:
>
>
>
> https://github.com/panicz/grasp-android/blob/master/stages/retreat/GRASP/src/primitive.scm#L151
>
> sob., 22 paź 2022, 11:31 użytkownik Panicz Maciej Godek <
> godek.maciek@gmail.com> napisał:
>
>> This is weird.
>> Without the patch, the only complaint concerns the identifiers - and if I
>> rename them to legal Java identifiers, everything works fine.
>>
>> However, when I apply the patch and try to run the editor, I get the
>> following:
>>
>> java.lang.RuntimeException: wrong number of indexes 0 to 1-rank array
>>                        at
>> gnu.lists.AbstractSequence.badRank(AbstractSequence.java:55)
>>          at gnu.lists.AbstractSequence.checkRank(AbstractSequence.java:51)
>>                      at
>> gnu.lists.AbstractSequence.effectiveIndex(AbstractSequence.java:84)
>>           at gnu.lists.AbstractSequence.getInt(AbstractSequence.java:173)
>>                        at cons.hashCode(primitive.scm:156)
>>                                    at
>> java.base/java.util.WeakHashMap.hash(WeakHashMap.java:303)
>>          at java.base/java.util.WeakHashMap.getEntry(WeakHashMap.java:432)
>>                      at
>> java.base/java.util.WeakHashMap.containsKey(WeakHashMap.java:423)
>>           at hash$Mntable.hashRef$Pl$V(hash-table.scm:21)
>>                        at hash$Mntable.hashRef$Pl$check(hash-table.scm:20)
>>                                    at
>> gnu.mapping.CallContext.runUntilValue(CallContext.java:656)
>>           at gnu.mapping.Procedure.apply3(Procedure.java:167)
>>                        at space.getter$2(space.scm:504)
>>                                     at space.getter$2$check(space.scm:504)
>>                                                 at
>> gnu.mapping.CallContext.runUntilValue(CallContext.java:656)
>>           at gnu.mapping.Procedure.apply1(Procedure.java:154)
>>                        at
>> gnu.kawa.functions.ApplyToArgs.apply2(ApplyToArgs.java:52)
>>          at parse$frame1.lambda5addElement$Ex(parse.scm:183)
>>                      at parse.readList(parse.scm:275)
>>                                   at parse.readList(parse.scm)
>>                                               at
>> parse.readList(parse.scm:223)
>>           at parse.readList(parse.scm)
>>                       at parse.readList$check(parse.scm:165)
>>                                   at
>> gnu.mapping.CallContext.runUntilValue(CallContext.java:656)
>>           at gnu.mapping.Procedure.apply0(Procedure.java:148)
>>                        at parse.parseDocument(parse.scm:291)
>>                                    at parse.parseDocument(parse.scm:289)
>>                                                at
>> parse.parseDocument$check(parse.scm:288)
>>          at
>> gnu.mapping.Procedure.applyToConsumerDefault(Procedure.java:75)
>>           at
>> gnu.kawa.functions.ApplyToArgs.applyToConsumerA2A(ApplyToArgs.java:132)
>>           at gnu.mapping.CallContext.runUntilDone(CallContext.java:586)
>>                        at
>> gnu.mapping.CallContext.runUntilValue(CallContext.java:669)
>>           at gnu.mapping.Procedure.apply1(Procedure.java:154)
>>                        at conversions$frame0.lambda2(conversions.scm:14)
>>                                    at
>> conversions$frame0.lambda2$check(conversions.scm:12)
>>          at gnu.mapping.CallContext.runUntilValue(CallContext.java:656)
>>                       at gnu.mapping.Procedure.apply1(Procedure.java:154)
>>                                    at
>> kawa.lib.ports.callWithInputString(ports.scm:154)
>>           at conversions.withInputFromString(conversions.scm:12)
>>                       at
>> conversions.withInputFromString$check(conversions.scm:10)
>>           at gnu.mapping.CallContext.runUntilValue(CallContext.java:656)
>>                       at gnu.mapping.Procedure.apply2(Procedure.java:160)
>>                                    at
>> atInteractiveLevel$Mn3.run(primitive-terminal-client.scm:48)
>>          at gnu.expr.ModuleExp.evalModule2(ModuleExp.java:290)
>>                      at kawa.Shell.run(Shell.java:300)
>>                                  at kawa.Shell.runFile(Shell.java:562)
>>                                              at
>> kawa.Shell.runFileOrClass(Shell.java:485)
>>           at kawa.repl.processArgs(repl.java:298)
>>                        at kawa.repl.main(repl.java:830)
>>
>> The exception clearly comes from my code. It's a bit convoluted to
>> explain what's going in there, but if you'd like to take a glimpse, you can
>> find it here:
>>
>>
>> https://github.com/panicz/grasp-android/tree/master/stages/retreat/GRASP/src
>>
>> Android isn't required to run any of these. You can either try running
>> ./grasp-terminal (in vt100-compatible terminal with unicode)
>> ./grasp-desktop (with AWT)
>> or
>> ./primitive-terminal-client (in terminal)
>>
>>
>> sob., 22 paź 2022, 08:26 użytkownik Per Bothner <per@bothner.com>
>> napisał:
>>
>>>
>>>
>>> On 10/21/22 12:45, Panicz Maciej Godek wrote:
>>> > During its compilation, Kawa issues the following warning:
>>> >
>>> > subclass-refering-to-mangled-superclass-property.scm:6:4: warning - no
>>> declaration seen for mangled-name
>>>
>>> The attached patch seems to fix it.
>>>
>>> --
>>>         --Per Bothner
>>> per@bothner.com   http://per.bothner.com/
>>
>>