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Show an elaboration when accessing a non-existent property of a union type #10582
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59d027b
Show elaboration for property not existing in union
ojsheikh 4eaee73
Add test for invalid property access in unions
ojsheikh fe570ba
Do not elaborate on primitive type unions
ojsheikh f825b9c
Add additional tests to unionPropertyExistence
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84 changes: 84 additions & 0 deletions
84
tests/baselines/reference/unionPropertyExistence.errors.txt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| tests/cases/compiler/unionPropertyExistence.ts(27,3): error TS2339: Property 'nope' does not exist on type '"foo" | "bar"'. | ||
| Property 'nope' does not exist on type '"foo"'. | ||
| tests/cases/compiler/unionPropertyExistence.ts(28,6): error TS2339: Property 'onlyInB' does not exist on type 'B | "foo"'. | ||
| Property 'onlyInB' does not exist on type '"foo"'. | ||
| tests/cases/compiler/unionPropertyExistence.ts(30,6): error TS2339: Property 'length' does not exist on type 'B | "foo"'. | ||
| Property 'length' does not exist on type 'B'. | ||
| tests/cases/compiler/unionPropertyExistence.ts(32,4): error TS2339: Property 'onlyInB' does not exist on type 'AB'. | ||
| Property 'onlyInB' does not exist on type 'A'. | ||
| tests/cases/compiler/unionPropertyExistence.ts(35,5): error TS2339: Property 'notInC' does not exist on type 'ABC'. | ||
| Property 'notInC' does not exist on type 'C'. | ||
| tests/cases/compiler/unionPropertyExistence.ts(36,4): error TS2339: Property 'notInB' does not exist on type 'AB'. | ||
| Property 'notInB' does not exist on type 'B'. | ||
| tests/cases/compiler/unionPropertyExistence.ts(37,5): error TS2339: Property 'notInB' does not exist on type 'ABC'. | ||
| Property 'notInB' does not exist on type 'B'. | ||
| tests/cases/compiler/unionPropertyExistence.ts(40,5): error TS2339: Property 'inNone' does not exist on type 'ABC'. | ||
| Property 'inNone' does not exist on type 'A'. | ||
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| ==== tests/cases/compiler/unionPropertyExistence.ts (8 errors) ==== | ||
| interface A { | ||
| inAll: string; | ||
| notInB: string; | ||
| notInC: string; | ||
| } | ||
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| interface B { | ||
| inAll: boolean; | ||
| onlyInB: number; | ||
| notInC: string; | ||
| } | ||
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| interface C { | ||
| inAll: number; | ||
| notInB: string; | ||
| } | ||
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| type AB = A | B; | ||
| type ABC = C | AB; | ||
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| var ab: AB; | ||
| var abc: ABC; | ||
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| declare const x: "foo" | "bar"; | ||
| declare const bFoo: B | "foo"; | ||
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| x.nope(); | ||
| ~~~~ | ||
| !!! error TS2339: Property 'nope' does not exist on type '"foo" | "bar"'. | ||
| !!! error TS2339: Property 'nope' does not exist on type '"foo"'. | ||
| bFoo.onlyInB; | ||
| ~~~~~~~ | ||
| !!! error TS2339: Property 'onlyInB' does not exist on type 'B | "foo"'. | ||
| !!! error TS2339: Property 'onlyInB' does not exist on type '"foo"'. | ||
| x.length; // Ok | ||
| bFoo.length; | ||
| ~~~~~~ | ||
| !!! error TS2339: Property 'length' does not exist on type 'B | "foo"'. | ||
| !!! error TS2339: Property 'length' does not exist on type 'B'. | ||
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| ab.onlyInB; | ||
| ~~~~~~~ | ||
| !!! error TS2339: Property 'onlyInB' does not exist on type 'AB'. | ||
| !!! error TS2339: Property 'onlyInB' does not exist on type 'A'. | ||
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| ab.notInC; // Ok | ||
| abc.notInC; | ||
| ~~~~~~ | ||
| !!! error TS2339: Property 'notInC' does not exist on type 'ABC'. | ||
| !!! error TS2339: Property 'notInC' does not exist on type 'C'. | ||
| ab.notInB; | ||
| ~~~~~~ | ||
| !!! error TS2339: Property 'notInB' does not exist on type 'AB'. | ||
| !!! error TS2339: Property 'notInB' does not exist on type 'B'. | ||
| abc.notInB; | ||
| ~~~~~~ | ||
| !!! error TS2339: Property 'notInB' does not exist on type 'ABC'. | ||
| !!! error TS2339: Property 'notInB' does not exist on type 'B'. | ||
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| abc.inAll; // Ok | ||
| abc.inNone; | ||
| ~~~~~~ | ||
| !!! error TS2339: Property 'inNone' does not exist on type 'ABC'. | ||
| !!! error TS2339: Property 'inNone' does not exist on type 'A'. | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| //// [unionPropertyExistence.ts] | ||
| interface A { | ||
| inAll: string; | ||
| notInB: string; | ||
| notInC: string; | ||
| } | ||
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| interface B { | ||
| inAll: boolean; | ||
| onlyInB: number; | ||
| notInC: string; | ||
| } | ||
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| interface C { | ||
| inAll: number; | ||
| notInB: string; | ||
| } | ||
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| type AB = A | B; | ||
| type ABC = C | AB; | ||
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| var ab: AB; | ||
| var abc: ABC; | ||
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| declare const x: "foo" | "bar"; | ||
| declare const bFoo: B | "foo"; | ||
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| x.nope(); | ||
| bFoo.onlyInB; | ||
| x.length; // Ok | ||
| bFoo.length; | ||
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| ab.onlyInB; | ||
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| ab.notInC; // Ok | ||
| abc.notInC; | ||
| ab.notInB; | ||
| abc.notInB; | ||
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| abc.inAll; // Ok | ||
| abc.inNone; | ||
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| //// [unionPropertyExistence.js] | ||
| var ab; | ||
| var abc; | ||
| x.nope(); | ||
| bFoo.onlyInB; | ||
| x.length; // Ok | ||
| bFoo.length; | ||
| ab.onlyInB; | ||
| ab.notInC; // Ok | ||
| abc.notInC; | ||
| ab.notInB; | ||
| abc.notInB; | ||
| abc.inAll; // Ok | ||
| abc.inNone; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| interface A { | ||
| inAll: string; | ||
| notInB: string; | ||
| notInC: string; | ||
| } | ||
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| interface B { | ||
| inAll: boolean; | ||
| onlyInB: number; | ||
| notInC: string; | ||
| } | ||
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| interface C { | ||
| inAll: number; | ||
| notInB: string; | ||
| } | ||
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| type AB = A | B; | ||
| type ABC = C | AB; | ||
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| var ab: AB; | ||
| var abc: ABC; | ||
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| declare const x: "foo" | "bar"; | ||
| declare const bFoo: B | "foo"; | ||
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| x.nope(); | ||
| bFoo.onlyInB; | ||
| x.length; // Ok | ||
| bFoo.length; | ||
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| ab.onlyInB; | ||
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| ab.notInC; // Ok | ||
| abc.notInC; | ||
| ab.notInB; | ||
| abc.notInB; | ||
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| abc.inAll; // Ok | ||
| abc.inNone; |
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Spelling: Nonexistent
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reportNonexistentProperty