Default contextual 'this' type is containing object literal

ahejlsberg · ahejlsberg · commit 2ca6164fea89 · 2017-02-16T17:04:30.000-08:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -11230,6 +11230,9 @@ namespace ts {
                         }
                         objectLiteral = <ObjectLiteralExpression>objectLiteral.parent.parent;
                     }
+                    // There was no contextual ThisType<T> for the containing object literal, so the contextual type
+                    // for 'this' is the type of the object literal itself.
+                    return checkExpressionCached(containingLiteral);
                 }
             }
             return undefined;

Original file line number	Diff line number	Diff line change
`@@ -11230,6 +11230,9 @@ namespace ts {`
`11230`	`11230`	`}`
`11231`	`11231`	`objectLiteral = <ObjectLiteralExpression>objectLiteral.parent.parent;`
`11232`	`11232`	`}`
	`11233`	`+ // There was no contextual ThisType<T> for the containing object literal, so the contextual type`
	`11234`	`+ // for 'this' is the type of the object literal itself.`
	`11235`	`+ return checkExpressionCached(containingLiteral);`
`11233`	`11236`	`}`
`11234`	`11237`	`}`
`11235`	`11238`	`return undefined;`