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Check for null type instead of null keyword

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This commit is contained in:
Anders Hejlsberg 2018-04-30 10:43:43 -07:00
parent 33d20e9321
commit 672d2144fa
1 changed files with 1 additions and 1 deletions
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src/compiler/checker.ts
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@ -13690,7 +13690,7 @@ namespace ts {
const doubleEquals = operator === SyntaxKind.EqualsEqualsToken || operator === SyntaxKind.ExclamationEqualsToken;
const facts = doubleEquals ?
assumeTrue ? TypeFacts.EQUndefinedOrNull : TypeFacts.NEUndefinedOrNull :
value.kind === SyntaxKind.NullKeyword ?
valueType.flags & TypeFlags.Null ?
assumeTrue ? TypeFacts.EQNull : TypeFacts.NENull :
assumeTrue ? TypeFacts.EQUndefined : TypeFacts.NEUndefined;
return getTypeWithFacts(type, facts);