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Properly handle typeof this.xxx
in isTypeParameterPossiblyReferenced
#54208
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23 changes: 23 additions & 0 deletions
23
tests/baselines/reference/typeofThisInMethodSignature.symbols
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Original file line number | Diff line number | Diff line change |
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=== tests/cases/compiler/typeofThisInMethodSignature.ts === | ||
// Repro from #54167 | ||
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export class A { | ||
>A : Symbol(A, Decl(typeofThisInMethodSignature.ts, 0, 0)) | ||
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x = 1 | ||
>x : Symbol(A.x, Decl(typeofThisInMethodSignature.ts, 2, 16)) | ||
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a(x: typeof this.x): void {} | ||
>a : Symbol(A.a, Decl(typeofThisInMethodSignature.ts, 3, 6)) | ||
>x : Symbol(x, Decl(typeofThisInMethodSignature.ts, 4, 3)) | ||
>this.x : Symbol(A.x, Decl(typeofThisInMethodSignature.ts, 2, 16)) | ||
>this : Symbol(A, Decl(typeofThisInMethodSignature.ts, 0, 0)) | ||
>x : Symbol(A.x, Decl(typeofThisInMethodSignature.ts, 2, 16)) | ||
} | ||
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const a = new A().a(1); | ||
>a : Symbol(a, Decl(typeofThisInMethodSignature.ts, 7, 5)) | ||
>new A().a : Symbol(A.a, Decl(typeofThisInMethodSignature.ts, 3, 6)) | ||
>A : Symbol(A, Decl(typeofThisInMethodSignature.ts, 0, 0)) | ||
>a : Symbol(A.a, Decl(typeofThisInMethodSignature.ts, 3, 6)) | ||
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27 changes: 27 additions & 0 deletions
27
tests/baselines/reference/typeofThisInMethodSignature.types
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=== tests/cases/compiler/typeofThisInMethodSignature.ts === | ||
// Repro from #54167 | ||
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export class A { | ||
>A : A | ||
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x = 1 | ||
>x : number | ||
>1 : 1 | ||
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a(x: typeof this.x): void {} | ||
>a : (x: typeof this.x) => void | ||
>x : number | ||
>this.x : number | ||
>this : this | ||
>x : number | ||
} | ||
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const a = new A().a(1); | ||
>a : void | ||
>new A().a(1) : void | ||
>new A().a : (x: number) => void | ||
>new A() : A | ||
>A : typeof A | ||
>a : (x: number) => void | ||
>1 : 1 | ||
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// @strict: true | ||
// @noEmit: true | ||
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// Repro from #54167 | ||
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export class A { | ||
x = 1 | ||
a(x: typeof this.x): void {} | ||
} | ||
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const a = new A().a(1); |
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Just out of curiosity, where/why do things go wrong if
firstIdentifier
isthis
? Is it in this call togetResolvedSymbol
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Yes, it goes wrong because
this
is never actually a symbol you can look up. In expressions,this
isn't even an identifier, it's encoded as aThisExpression
AST node. However, a type query stores the dotted name as anEntityName
, and in thosethis
is just an identifier.