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strictNullChecks pragma tests, including cross-file type behavior
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‎tests/baselines/reference/strictNullChecksPragma1.errors.txt

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tests/cases/conformance/pragma/strictNullChecks/file1.ts(9,14): error TS2322: Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file1.ts(11,1): error TS2322: Type 'B' is not assignable to type 'A'.
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tests/cases/conformance/pragma/strictNullChecks/file1.ts(16,20): error TS2322: Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file1.ts(25,1): error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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tests/cases/conformance/pragma/strictNullChecks/file1.ts(31,1): error TS2322: Type 'B' is not assignable to type 'A'.
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tests/cases/conformance/pragma/strictNullChecks/file2.ts(18,1): error TS2322: Type 'B' is not assignable to type 'A'.
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Types of property 'member' are incompatible.
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Type 'string | undefined' is not assignable to type 'string'.
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Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file2.ts(24,1): error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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Types of property 'member' are incompatible.
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Type 'string | undefined' is not assignable to type 'string'.
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Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file2.ts(27,1): error TS2322: Type 'B' is not assignable to type 'A'.
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Types of property 'member' are incompatible.
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Type 'string | undefined' is not assignable to type 'string'.
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Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file3.ts(5,14): error TS2322: Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file3.ts(7,16): error TS2322: Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file3.ts(8,16): error TS2322: Type 'undefined' is not assignable to type 'string'.
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tests/cases/conformance/pragma/strictNullChecks/file3.ts(10,1): error TS2322: Type 'B' is not assignable to type 'A'.
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tests/cases/conformance/pragma/strictNullChecks/file3.ts(20,1): error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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tests/cases/conformance/pragma/strictNullChecks/file3.ts(26,1): error TS2322: Type 'B' is not assignable to type 'A'.
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tests/cases/conformance/pragma/strictNullChecks/file4.ts(10,1): error TS2322: Type 'B' is not assignable to type 'A'.
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tests/cases/conformance/pragma/strictNullChecks/file4.ts(20,1): error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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tests/cases/conformance/pragma/strictNullChecks/file4.ts(26,1): error TS2322: Type 'B' is not assignable to type 'A'.
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==== tests/cases/conformance/pragma/strictNullChecks/file1.ts (5 errors) ====
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// @ts-strictNullChecks
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export interface A {
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member: string;
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}
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export interface B {
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member: string | undefined;
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}
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let a: A = { member: undefined };
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~~~~~~
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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!!! related TS6500 tests/cases/conformance/pragma/strictNullChecks/file1.ts:3:5: The expected type comes from property 'member' which is declared here on type 'A'
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declare var b: B;
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a = b;
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~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.
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b = a;
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import {A as OtherA, B as OtherB} from "./file2";
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let a2: OtherA = { member: undefined };
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~~~~~~
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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!!! related TS6500 /.src/tests/cases/conformance/pragma/strictNullChecks/file2.ts:3:5: The expected type comes from property 'member' which is declared here on type 'A'
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declare var b2: OtherB;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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~~
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!!! error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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~~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.
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==== tests/cases/conformance/pragma/strictNullChecks/file2.ts (3 errors) ====
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// loose
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export interface A {
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member: string;
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}
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export interface B {
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member: string | undefined;
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}
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let a: A = { member: undefined };
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declare var b: B;
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a = b;
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b = a;
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import {A as OtherA, B as OtherB} from "./file1";
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let a2: OtherA = { member: undefined };
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declare var b2: OtherB;
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a2 = b2;
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~~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.
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!!! error TS2322: Types of property 'member' are incompatible.
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!!! error TS2322: Type 'string | undefined' is not assignable to type 'string'.
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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~
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!!! error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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!!! error TS2322: Types of property 'member' are incompatible.
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!!! error TS2322: Type 'string | undefined' is not assignable to type 'string'.
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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b2 = b;
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a = b2;
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~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.
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!!! error TS2322: Types of property 'member' are incompatible.
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!!! error TS2322: Type 'string | undefined' is not assignable to type 'string'.
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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b2 = a;
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b = a2;
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a2 = b;
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==== tests/cases/conformance/pragma/strictNullChecks/file3.ts (6 errors) ====
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// @ts-strictNullChecks
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import {A, B} from "./file1";
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import {A as A2, B as B2} from "./file2";
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let a: A = { member: undefined };
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~~~~~~
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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!!! related TS6500 tests/cases/conformance/pragma/strictNullChecks/file1.ts:3:5: The expected type comes from property 'member' which is declared here on type 'A'
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let b: B = { member: undefined };
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let a2: A2 = { member: undefined };
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~~~~~~
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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!!! related TS6500 /.src/tests/cases/conformance/pragma/strictNullChecks/file2.ts:3:5: The expected type comes from property 'member' which is declared here on type 'A'
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let b2: B2 = { member: undefined };
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~~~~~~
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!!! error TS2322: Type 'undefined' is not assignable to type 'string'.
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!!! related TS6500 /.src/tests/cases/conformance/pragma/strictNullChecks/file2.ts:6:5: The expected type comes from property 'member' which is declared here on type 'B'
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a = b;
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~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.
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b = a;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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~~
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!!! error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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~~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.
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==== tests/cases/conformance/pragma/strictNullChecks/file4.ts (3 errors) ====
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// loose
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import {A, B} from "./file1";
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import {A as A2, B as B2} from "./file2";
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let a: A = { member: undefined };
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let b: B = { member: undefined };
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let a2: A2 = { member: undefined };
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let b2: B2 = { member: undefined };
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a = b;
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~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.
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b = a;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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~~
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!!! error TS2322: Type 'import("tests/cases/conformance/pragma/strictNullChecks/file1").B' is not assignable to type 'import("tests/cases/conformance/pragma/strictNullChecks/file2").B'.
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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~~
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!!! error TS2322: Type 'B' is not assignable to type 'A'.

‎tests/baselines/reference/strictNullChecksPragma1.js

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//// [tests/cases/conformance/pragma/strictNullChecks/strictNullChecksPragma1.ts] ////
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//// [file1.ts]
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// @ts-strictNullChecks
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export interface A {
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member: string;
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}
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export interface B {
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member: string | undefined;
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}
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let a: A = { member: undefined };
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declare var b: B;
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a = b;
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b = a;
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import {A as OtherA, B as OtherB} from "./file2";
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let a2: OtherA = { member: undefined };
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declare var b2: OtherB;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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//// [file2.ts]
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// loose
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export interface A {
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member: string;
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}
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export interface B {
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member: string | undefined;
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}
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let a: A = { member: undefined };
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declare var b: B;
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a = b;
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b = a;
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import {A as OtherA, B as OtherB} from "./file1";
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let a2: OtherA = { member: undefined };
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declare var b2: OtherB;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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//// [file3.ts]
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// @ts-strictNullChecks
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import {A, B} from "./file1";
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import {A as A2, B as B2} from "./file2";
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let a: A = { member: undefined };
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let b: B = { member: undefined };
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let a2: A2 = { member: undefined };
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let b2: B2 = { member: undefined };
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a = b;
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b = a;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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//// [file4.ts]
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// loose
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import {A, B} from "./file1";
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import {A as A2, B as B2} from "./file2";
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let a: A = { member: undefined };
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let b: B = { member: undefined };
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let a2: A2 = { member: undefined };
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let b2: B2 = { member: undefined };
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a = b;
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b = a;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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//// [file2.js]
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"use strict";
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exports.__esModule = true;
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var a = { member: undefined };
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a = b;
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b = a;
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var a2 = { member: undefined };
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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//// [file1.js]
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"use strict";
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exports.__esModule = true;
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var a = { member: undefined };
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a = b;
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b = a;
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var a2 = { member: undefined };
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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//// [file3.js]
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"use strict";
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exports.__esModule = true;
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var a = { member: undefined };
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var b = { member: undefined };
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var a2 = { member: undefined };
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var b2 = { member: undefined };
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a = b;
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b = a;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;
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//// [file4.js]
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"use strict";
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exports.__esModule = true;
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var a = { member: undefined };
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var b = { member: undefined };
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var a2 = { member: undefined };
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var b2 = { member: undefined };
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a = b;
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b = a;
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a2 = b2;
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b2 = a2;
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a = a2;
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a2 = a;
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b = b2;
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b2 = b;
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a = b2;
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b2 = a;
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b = a2;
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a2 = b;

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