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| winfredraj | hello all | 19:08 | |
| m: class Point { has $.x;has $.y; multi method new($x, $y) { my %temp; %temp<x> = $x; %temp<y> = $y; self.bless(%temp);}}; my $p = Point.new(-1, 1); | |||
| Raku eval | Exit code: 1 Too many positionals passed; expected 1 argument but got 2 in method new at main.raku line 1 in block <unit> at main.raku line 1 | ||
| winfredraj | why is the bless not accepting %temp? | 19:09 | |
| m: class Point { has $.x;has $.y; multi method new($x, $y) { my %temp; %temp<x> = $x; %temp<y> = $y; say %temp; self.bless(%temp);}}; my $p = Point.new(-1, 1); | 19:11 | ||
| Raku eval | {x => -1, y => 1} Exit code: 1 Too many positionals passed; expected 1 argument but got 2 in method new at main.raku line 1 in block <unit> at main.raku line 1 | ||
| winfredraj | I just want to know how to pass the hash or how I must structure the hash in terms of the keys for the members or if it at all possible to use bless with a hash as an argument | 19:13 | |
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| ab5tract | m: class Point { has $.x;has $.y; multi method new($x, $y) { my %temp; %temp<x> = $x; %temp<y> = $y; say %temp; self.bless(|%temp);}}; my $p = Point.new(-1, 1); | 20:29 | |
| camelia | {x => -1, y => 1} | ||
| ab5tract | You want to use | to expand the hash contents into arguments for bless | 20:30 | |
| Otherwise the hash is just another (unexpected, in this case) positional argument | |||
| winfredraj | thanks ab5tract | 20:32 | |
| ab5tract | My pleasure | 20:34 | |
| The | prefix operator comes in handy quite often | 20:35 | ||
| For instance, if you want a range to expand to all of its elements, just put | in front (usually in combination with parentheses around the range) | 20:36 | ||
| Or if you want to expand @args into positional parameters | |||
| So I recommend giving it a try whenever you run into a situation where you are getting fewer elements than you want to be getting | 20:37 | ||
| winfredraj | I remember vaguely using something like that for the reduce function I think | ||
| need to check it | |||
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| ab5tract | Yeah it definitely comes in handy with reduction and most other meta ops | 21:03 | |
| antononcube | @winfredraj There is package that lets you make classes from hashes. ("Hash2Class" I think...) | 21:04 | |
| It was recently updated... | |||
| raku.land/zef:lizmat/Hash2Class | 21:07 | ||
| winfredraj | thanks antoncube - ill check it out tomorrow - need to catch some sleep now | 21:09 | |
| was battling with xml - would be great if we had something like type providers in F#, maybe Ill work on somethink like that when I have some free time | 21:10 | ||