Show an elaboration when accessing a non-existent property of a union type #10582
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Fixes microsoft#10256. Accessing a non-existant property on union types should now show an elaboration in the error message specifying the first constituent type that lacks the property.
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Hi @oijazsh, I'm your friendly neighborhood Microsoft Pull Request Bot (You can call me MSBOT). Thanks for your contribution! TTYL, MSBOT; |
| !!! error TS2339: Property 'toBAZ' does not exist on type 'boolean'. | ||
| !!! error TS2339: Property 'toBAZ' does not exist on type 'true'. |
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This looks weird - let's exclude TypeFlags.Boolean along with TypeFlags.Enum on line 10814
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Eugh.
How about for enums and booleans we don't dive in? Specifically, you can check TypeFlags.Boolean and TypeFlags.Enum.
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Great minds think and read GitHub on Sunday nights alike
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Actually, TypeFlags.Primitive is probably fine to check too.
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Wow GitHub syncs weird-like
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Primitive is probably correct. Let's have a test for
declare const x: "foo" | "bar";
x.nope();
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Looks pretty good to me after a couple minor fixes. @mhegazy thoughts on letting this into |
ojsheikh
changed the title
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Fixed the typo and excluded unions that are also |
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sorry for the delay. loos good. |
This fixes issue #10256 by showing an elaboration when accessing a non-existant property of a union type. It does not show an elaboration in the following cases:
(It probably should in the second case, but that hasn't been discussed)