[core] Multiple methods are not generated because of "Code variable not set in r1v0 ?"

[bagipro]

Open com.ksmobile.launcher.LauncherModel, you will see that tons of methods are not generated because of error

        void mo22935a(
/*
Method generation error in method: com.ksmobile.launcher.LauncherModel.b.a(com.ksmobile.launcher.az, boolean, boolean):void, dex: classes.dex
        jadx.core.utils.exceptions.JadxRuntimeException: Code variable not set in r1v0 ?
        	at jadx.core.dex.instructions.args.SSAVar.getCodeVar(SSAVar.java:189)
        	at jadx.core.codegen.MethodGen.addMethodArguments(MethodGen.java:157)
        	at jadx.core.codegen.MethodGen.addDefinition(MethodGen.java:129)
        	at jadx.core.codegen.ClassGen.addMethod(ClassGen.java:297)
        	at jadx.core.codegen.ClassGen.addMethods(ClassGen.java:263)
        	at jadx.core.codegen.ClassGen.addClassBody(ClassGen.java:226)
        	at jadx.core.codegen.ClassGen.addClassCode(ClassGen.java:111)
        	at jadx.core.codegen.ClassGen.addInnerClasses(ClassGen.java:238)
        	at jadx.core.codegen.ClassGen.addClassBody(ClassGen.java:225)
        	at jadx.core.codegen.ClassGen.addClassCode(ClassGen.java:111)
        	at jadx.core.codegen.ClassGen.makeClass(ClassGen.java:77)
        	at jadx.core.codegen.CodeGen.wrapCodeGen(CodeGen.java:49)
        	at jadx.core.codegen.CodeGen.generateJavaCode(CodeGen.java:33)
        	at jadx.core.codegen.CodeGen.generate(CodeGen.java:21)
        	at jadx.core.ProcessClass.generateCode(ProcessClass.java:61)
        	at jadx.core.dex.nodes.ClassNode.decompile(ClassNode.java:273)
        
*/

APK: https://drive.google.com/file/d/1ITPTFbRKIvV9UlcctL-J5OcuMjaR3k8y/view?usp=sharing

[jpstotz]

Are you sure you have tested this APK using the latest unstable build?
Because using the latest unstable version I don't see any Code variable not set errors in the mentioned class (the class is not fully decompiled but at least this message never occurs).

Even using full text search I am not able find any Code variable not set errors.

[bagipro]

@jpstotz
That's weird, I tried again to clone the repo and build it, issue is still reproducible. Maybe it's a regression bug, and you're using not latest build, so you don't see it?

[jpstotz]

@sergey-wowwow OK, the error only occurs with show inconsistent code enabled.

com.ksmobile.launcher.LauncherModel.b is an interface and Jadx processes the usages of the method argument in the method's code. As it is an interface method this will of course fail as there is no code...

[skylot]

@sergey-wowwow fixed! And that was a funny issue :)
In short: due to show inconsistent code one of the methods tried to generate code but failed with the exception which leads to class codegen restart. So, interface method first time was generated correctly but code var was not saved and this leads to an error on second code generation.