e90f5e063e
1. Numeric literal <-> enum literal assignability 2. Computed enum <-> union enum assignability 3. Also rebaseline error reporting of existing enum cases.
24 lines
495 B
TypeScript
24 lines
495 B
TypeScript
enum E {
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A, B, C
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}
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enum Computed {
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A = 1 << 1,
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B = 1 << 2,
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C = 1 << 3,
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}
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let n: number;
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let e: E = n; // ok because it's too inconvenient otherwise
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e = 0; // ok, in range
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e = 4; // ok, out of range, but allowed computed enums don't have all members
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let a: E.A = 0; // ok, A === 0
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a = 2; // error, 2 !== 0
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a = n; // ok
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let c: Computed = n; // ok
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c = n; // ok
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c = 4; // ok
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let ca: Computed.A = 1; // error, Computed.A isn't a literal type because Computed has no enum literals
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