2017-04-21 01:03:25 +02:00
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class A { a: string; }
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class B { b: string; }
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function negativeClassesTest(x: A | B) {
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if ("a" in x) {
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x.b = "1";
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} else {
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x.a = "1";
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}
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}
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function positiveClassesTest(x: A | B) {
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if ("a" in x) {
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x.b = "1";
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} else {
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x.a = "1";
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}
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}
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class AWithOptionalProp { a?: string; }
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class BWithOptionalProp { b?: string; }
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function positiveTestClassesWithOptionalProperties(x: AWithOptionalProp | BWithOptionalProp) {
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if ("a" in x) {
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x.a = "1";
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} else {
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x.b = "1";
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}
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}
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class AWithMethod {
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a(): string { return ""; }
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}
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class BWithMethod {
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b(): string { return ""; }
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}
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function negativeTestClassesWithMembers(x: AWithMethod | BWithMethod) {
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if ("a" in x) {
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x.a();
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x.b();
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} else {
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}
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}
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function negativeTestClassesWithMemberMissingInBothClasses(x: AWithMethod | BWithMethod) {
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if ("c" in x) {
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x.a();
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x.b();
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} else {
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x.a();
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x.b();
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}
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}
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class C { a: string; }
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class D { a: string; }
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function negativeMultipleClassesTest(x: A | B | C | D) {
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if ("a" in x) {
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x.b = "1";
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} else {
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x.a = "1";
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}
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}
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class ClassWithUnionProp { prop: A | B }
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function negativePropTest(x: ClassWithUnionProp) {
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if ("a" in x.prop) {
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let y: string = x.prop.b;
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} else {
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let z: string = x.prop.a;
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}
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}
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class NegativeClassTest {
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protected prop: A | B;
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inThis() {
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if ("a" in this.prop) {
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let z: number = this.prop.b;
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} else {
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let y: string = this.prop.a;
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}
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}
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}
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class UnreachableCodeDetection {
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a: string;
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inThis() {
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if ("a" in this) {
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} else {
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let y = this.a;
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}
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}
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2017-04-18 23:08:54 +02:00
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}
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