69 lines
3.5 KiB
Plaintext
69 lines
3.5 KiB
Plaintext
=== tests/cases/compiler/doesNotNarrowUnionOfConstructorsWithInstanceof.ts ===
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class A {
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>A : Symbol(A, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 0))
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length: 1
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>length : Symbol(A.length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 9))
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constructor() {
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this.length = 1
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>this.length : Symbol(A.length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 9))
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>this : Symbol(A, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 0))
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>length : Symbol(A.length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 9))
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}
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}
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class B {
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>B : Symbol(B, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 5, 1))
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length: 2
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>length : Symbol(B.length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 7, 9))
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constructor() {
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this.length = 2
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>this.length : Symbol(B.length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 7, 9))
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>this : Symbol(B, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 5, 1))
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>length : Symbol(B.length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 7, 9))
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}
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}
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function getTypedArray(flag: boolean) {
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>getTypedArray : Symbol(getTypedArray, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 12, 1))
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>flag : Symbol(flag, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 14, 23))
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return flag ? new A() : new B();
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>flag : Symbol(flag, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 14, 23))
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>A : Symbol(A, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 0))
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>B : Symbol(B, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 5, 1))
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}
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function getTypedArrayConstructor(flag: boolean) {
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>getTypedArrayConstructor : Symbol(getTypedArrayConstructor, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 16, 1))
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>flag : Symbol(flag, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 17, 34))
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return flag ? A : B;
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>flag : Symbol(flag, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 17, 34))
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>A : Symbol(A, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 0))
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>B : Symbol(B, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 5, 1))
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}
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const a = getTypedArray(true); // A | B
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>a : Symbol(a, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 20, 5))
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>getTypedArray : Symbol(getTypedArray, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 12, 1))
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const b = getTypedArrayConstructor(false); // A constructor | B constructor
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>b : Symbol(b, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 21, 5))
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>getTypedArrayConstructor : Symbol(getTypedArrayConstructor, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 16, 1))
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if (!(a instanceof b)) {
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>a : Symbol(a, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 20, 5))
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>b : Symbol(b, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 21, 5))
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console.log(a.length); // Used to be property 'length' does not exist on type 'never'.
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>a.length : Symbol(length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 9), Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 7, 9))
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>a : Symbol(a, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 20, 5))
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>length : Symbol(length, Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 0, 9), Decl(doesNotNarrowUnionOfConstructorsWithInstanceof.ts, 7, 9))
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}
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