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Id: 131362
Status: new
Priority: 0/
Queue: perl6

Owner: Nobody
Requestors: alex.jakimenko [at] gmail.com
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Severity: (no value)
Tag: testneeded
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Subject: [LTA] Can “Cannot modify an immutable X” error message also include the value? (42 = $x)
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Code: my $x; $x = 50; 42 = $x Result: Cannot modify an immutable Int in block <unit> at -e line 1 So which one of the assignments actually failed (both are on the same line)? This bug report is motivated by this thinkperl6 exercise: • We’ve seen that $n = 42 is legal. What about 42 = $n? I think a good error message would be “Cannot modify an immutable Int (42)”, or whatever else which includes the value itself.


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