Add type annotation

weswigham · weswigham · commit b1ad54b3828d · 2019-09-18T13:22:40.000-07:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -8971,7 +8971,7 @@ namespace ts {
             return undefined;
         }
 
-        function getConstraintDeclaration(type: TypeParameter) {
+        function getConstraintDeclaration(type: TypeParameter): TypeNode | undefined {
             return mapDefined(filter(type.symbol && type.symbol.declarations, isTypeParameterDeclaration), getEffectiveConstraintOfTypeParameter)[0];
         }
 

Original file line number	Diff line number	Diff line change
`@@ -8971,7 +8971,7 @@ namespace ts {`
`8971`	`8971`	`return undefined;`
`8972`	`8972`	`}`
`8973`	`8973`
`8974`		`- function getConstraintDeclaration(type: TypeParameter) {`
	`8974`	`+ function getConstraintDeclaration(type: TypeParameter): TypeNode \| undefined {`
`8975`	`8975`	`return mapDefined(filter(type.symbol && type.symbol.declarations, isTypeParameterDeclaration), getEffectiveConstraintOfTypeParameter)[0];`
`8976`	`8976`	`}`
`8977`	`8977`