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Tuple-destructure into existing variables #136
Description
It would be clean if cashscript allowed to redefine variables in tuples, for example:
bytes variableA = 0x00;
bytes variableB = 0x00;
if(condition){
variableA,variableB = bytesequence.split(index);
}
Currently the workaround is
bytes variableA = 0x00;
bytes variableB = 0x00;
if(condition){
variableA = bytesequence.split(index)[0];
variableB = bytesequence.split(index)[1];
}
Activity
[-]Can't redefine variables in tuples[/-][+]Tuple-destructure into existing variables[/+]mr-zwets commentedon Jun 26, 2026
renamed the issue "Tuple-destructure into existing variables" which is more clear/correct than the prior"Can't redefine variables in tuples"
with multi-return user functions (see #153) tuple-destructure will become much more common, and with it this language item
rkalis commentedon Jul 9, 2026
Now that we have multi-return values (which are internally the same type as Tuple from
.split()), we should consider to do 1 (or none) of the following: