mirror of
https://github.com/fluencelabs/assemblyscript
synced 2025-04-26 07:22:21 +00:00
50 lines
936 B
TypeScript
50 lines
936 B
TypeScript
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class A {}
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class B extends A {}
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var a: A;
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var b: B;
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var i: i32;
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var f: f32;
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assert( a instanceof A );
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assert( b instanceof A );
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assert(!(i instanceof A));
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assert(!(f instanceof A));
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assert(!(a instanceof B));
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assert( b instanceof B );
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assert(!(i instanceof B));
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assert(!(f instanceof B));
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assert(!(a instanceof i32));
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assert(!(b instanceof i32));
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assert( i instanceof i32 );
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assert(!(f instanceof i32));
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assert(!(a instanceof f32));
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assert(!(b instanceof f32));
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assert(!(i instanceof f32));
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assert( f instanceof f32 );
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function isI32<T>(v: T): bool {
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// should eliminate non-applicable branches (see fixture)
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if (v instanceof i32) {
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return true;
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} else {
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return false;
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}
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}
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assert( isI32(0));
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assert(!isI32(0.0));
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// TODO: what about nullables?
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// var an: A | null;
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// var bn: B | null;
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//
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// assert(an instanceof A);
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// assert(bn instanceof A);
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//
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// assert(!(an instanceof B));
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// assert(bn instanceof B);
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