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Identity of union type

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Sheetal Nandi 2014-11-03 16:54:00 -08:00
parent 16fc7a22e2
commit 1ca9273f49
3 changed files with 47 additions and 0 deletions
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20
tests/baselines/reference/unionTypeIdentity.errors.txt Normal file
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tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/unionTypeIdentity.ts(6,5): error TS2403: Subsequent variable declarations must have the same type. Variable 'strOrNum' must be of type 'string | boolean', but here has type 'string'.
tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/unionTypeIdentity.ts(7,5): error TS2403: Subsequent variable declarations must have the same type. Variable 'strOrNum' must be of type 'string | boolean', but here has type 'boolean'.
tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/unionTypeIdentity.ts(8,5): error TS2403: Subsequent variable declarations must have the same type. Variable 'strOrNum' must be of type 'string | boolean', but here has type 'number'.
==== tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/unionTypeIdentity.ts (3 errors) ====
// Two types are considered identical when
// they are union types with identical sets of constituent types, or
var strOrNum: string | boolean;
var strOrNum: boolean | string;
var strOrNum: boolean | string | boolean;
var strOrNum: string; // error
~~~~~~~~
!!! error TS2403: Subsequent variable declarations must have the same type. Variable 'strOrNum' must be of type 'string | boolean', but here has type 'string'.
var strOrNum: boolean; // error
~~~~~~~~
!!! error TS2403: Subsequent variable declarations must have the same type. Variable 'strOrNum' must be of type 'string | boolean', but here has type 'boolean'.
var strOrNum: number; // error
~~~~~~~~
!!! error TS2403: Subsequent variable declarations must have the same type. Variable 'strOrNum' must be of type 'string | boolean', but here has type 'number'.

19
tests/baselines/reference/unionTypeIdentity.js Normal file
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//// [unionTypeIdentity.ts]
// Two types are considered identical when
// they are union types with identical sets of constituent types, or
var strOrNum: string | boolean;
var strOrNum: boolean | string;
var strOrNum: boolean | string | boolean;
var strOrNum: string; // error
var strOrNum: boolean; // error
var strOrNum: number; // error
//// [unionTypeIdentity.js]
// Two types are considered identical when
// they are union types with identical sets of constituent types, or
var strOrNum;
var strOrNum;
var strOrNum;
var strOrNum; // error
var strOrNum; // error
var strOrNum; // error

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tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/unionTypeIdentity.ts Normal file
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// Two types are considered identical when
// they are union types with identical sets of constituent types, or
var strOrNum: string | boolean;
var strOrNum: boolean | string;
var strOrNum: boolean | string | boolean;
var strOrNum: string; // error
var strOrNum: boolean; // error
var strOrNum: number; // error