111 lines
No EOL
3.3 KiB
Text
111 lines
No EOL
3.3 KiB
Text
tests/cases/conformance/expressions/typeGuards/typeGuardsWithInstanceOfByConstructorSignature.ts(12,10): error TS2339: Property 'bar' does not exist on type 'A'.
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tests/cases/conformance/expressions/typeGuards/typeGuardsWithInstanceOfByConstructorSignature.ts(32,10): error TS2339: Property 'foo' does not exist on type '{}'.
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tests/cases/conformance/expressions/typeGuards/typeGuardsWithInstanceOfByConstructorSignature.ts(33,10): error TS2339: Property 'foo' does not exist on type '{}'.
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tests/cases/conformance/expressions/typeGuards/typeGuardsWithInstanceOfByConstructorSignature.ts(34,10): error TS2339: Property 'bar' does not exist on type '{}'.
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tests/cases/conformance/expressions/typeGuards/typeGuardsWithInstanceOfByConstructorSignature.ts(63,10): error TS2339: Property 'bar2' does not exist on type 'C1'.
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tests/cases/conformance/expressions/typeGuards/typeGuardsWithInstanceOfByConstructorSignature.ts(82,10): error TS2339: Property 'bar' does not exist on type 'D'.
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==== tests/cases/conformance/expressions/typeGuards/typeGuardsWithInstanceOfByConstructorSignature.ts (6 errors) ====
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interface AConstructor {
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new (): A;
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}
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interface A {
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foo: string;
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}
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declare var A: AConstructor;
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var obj1: A | string;
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if (obj1 instanceof A) { // narrowed to A.
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obj1.foo;
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obj1.bar;
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~~~
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!!! error TS2339: Property 'bar' does not exist on type 'A'.
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}
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var obj2: any;
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if (obj2 instanceof A) { // can't type narrowing from any.
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obj2.foo;
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obj2.bar;
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}
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// with generics
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interface BConstructor {
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new <T>(): B<T>;
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}
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interface B<T> {
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foo: T;
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}
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declare var B: BConstructor;
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var obj3: B<string> | A;
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if (obj3 instanceof B) { // narrowed to B<string>.
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obj3.foo = "str";
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~~~
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!!! error TS2339: Property 'foo' does not exist on type '{}'.
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obj3.foo = 1;
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~~~
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!!! error TS2339: Property 'foo' does not exist on type '{}'.
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obj3.bar = "str";
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~~~
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!!! error TS2339: Property 'bar' does not exist on type '{}'.
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}
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var obj4: any;
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if (obj4 instanceof B) { // can't type narrowing from any.
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obj4.foo = "str";
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obj4.foo = 1;
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obj4.bar = "str";
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}
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// has multiple constructor signature
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interface CConstructor {
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new (value: string): C1;
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new (value: number): C2;
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}
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interface C1 {
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foo: string;
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bar1: number;
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}
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interface C2 {
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foo: string;
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bar2: number;
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}
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declare var C: CConstructor;
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var obj5: C1 | A;
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if (obj5 instanceof C) { // narrowed to C1.
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obj5.foo;
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obj5.bar1;
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obj5.bar2;
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~~~~
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!!! error TS2339: Property 'bar2' does not exist on type 'C1'.
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}
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var obj6: any;
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if (obj6 instanceof C) { // can't type narrowing from any.
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obj6.foo;
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obj6.bar1;
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obj6.bar2;
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}
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// with object type literal
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interface D {
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foo: string;
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}
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declare var D: { new (): D; };
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var obj7: D | string;
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if (obj7 instanceof D) { // narrowed to D.
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obj7.foo;
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obj7.bar;
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~~~
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!!! error TS2339: Property 'bar' does not exist on type 'D'.
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}
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var obj8: any;
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if (obj8 instanceof D) { // can't type narrowing from any.
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obj8.foo;
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obj8.bar;
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}
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