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scala3 feature examples - literal types / published by https://github.com/dacr/code-examples-manager #4335490b-72fe-46b6-95cf-7a84023569f6/cbc31bd2af713a0ec8e1aa6ad58b4b97024552d1
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| // summary : scala3 feature examples - literal types | |
| // keywords : scala3, tutorial | |
| // publish : gist | |
| // authors : David Crosson | |
| // license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2) | |
| // id : 4335490b-72fe-46b6-95cf-7a84023569f6 | |
| // created-on : 2021-03-25T11:22:13+01:00 | |
| // managed-by : https://github.com/dacr/code-examples-manager | |
| // run-with : scala-cli $file | |
| //> using scala "3.4.2" | |
| val pi: 3.14157 = 3.14157 | |
| val _: 3.14157 = 3.14 // compile error ! | |
| val choice0: 1|2|3 = 1 | |
| val choice1: 1|2|3 = 4 // compile error ! | |
| val choice2: Option["A"|"B"] = None | |
| val choice3: Option["A"|"B"] = Some("A") | |
| val choice4: Option["A"|"B"] = Some("C") // compile error ! | |
| type Choice="A"|"B"|"C" | |
| val myChoice:Choice = "A" | |
| val myChoice:Choice = "D" // compile error ! |
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