mirror of
https://github.com/fluencelabs/assemblyscript
synced 2025-04-25 23:12:19 +00:00
52 lines
1.9 KiB
TypeScript
52 lines
1.9 KiB
TypeScript
class Animal {}
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class Cat extends Animal {}
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class BlackCat extends Cat {}
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var animal: Animal = new Animal();
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var cat: Animal = new Cat();
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var blackcat: Animal = new BlackCat();
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assert(animal instanceof Animal); // static true
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assert(!(animal instanceof Cat)); // dynamic false
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assert(!(animal instanceof BlackCat)); // dynamic false
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assert(cat instanceof Animal); // static true
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assert(cat instanceof Cat); // dynamic true
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assert(!(cat instanceof BlackCat)); // dynamic false
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assert(blackcat instanceof Animal); // static true
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assert(blackcat instanceof Cat); // dynamic true
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assert(blackcat instanceof BlackCat); // dynamic true
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var nullableAnimal: Animal | null = new Animal();
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var nullableCat: Animal | null = new Cat();
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var nullableBlackcat: Animal | null = new BlackCat();
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assert(nullableAnimal instanceof Animal); // static true
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assert(!(nullableAnimal instanceof Cat)); // dynamic false
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assert(!(nullableAnimal instanceof BlackCat)); // dynamic false
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assert(nullableCat instanceof Animal); // static true
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assert(nullableCat instanceof Cat); // dynamic true
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assert(!(nullableCat instanceof BlackCat)); // dynamic false
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assert(nullableBlackcat instanceof Animal); // static true
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assert(nullableBlackcat instanceof Cat); // dynamic true
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assert(nullableBlackcat instanceof BlackCat); // dynamic true
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var nullAnimal: Animal | null = null;
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var nullCat: Animal | null = null;
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var nullBlackcat: Animal | null = null;
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assert(!(nullAnimal instanceof Animal)); // static false
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assert(!(nullAnimal instanceof Cat)); // dynamic false
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assert(!(nullAnimal instanceof BlackCat)); // dynamic false
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assert(!(nullCat instanceof Animal)); // static false
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assert(!(nullCat instanceof Cat)); // dynamic false
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assert(!(nullCat instanceof BlackCat)); // dynamic false
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assert(!(nullBlackcat instanceof Animal)); // static false
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assert(!(nullBlackcat instanceof Cat)); // dynamic false
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assert(!(nullBlackcat instanceof BlackCat)); // dynamic false
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