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gfldex/coerce-subsets.raku

Created August 25, 2022 23:30
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coerce-subsets.raku
use v6.*;
class Type is Int { }
subset Even of Type where * %% 2;
Type.^add_method('COERCE', my method COERCE(|) {
my Even $retval = 42
});
sub foo(Even() $_) { .&dd }
foo ‘answer’;
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