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  1. /** @flow */
  2.  
  3. /* This test documents an example we ran into of a type annotation leaking.
  4.  *
  5.  * When foo() calls bar(), we should make sure the type of x matches the type
  6.  * annotation for y and stop. We should type the body of bar() with the type
  7.  * annotation of y.
  8.  *
  9.  * However, the leaky type annotation meant that we were flowing x's type to y
  10.  * and type checking the body of bar() using the stricter dictionary type,
  11.  * leading to an error.
  12.  */
  13.  
  14. type MyObj = Object;
  15.  
  16. function foo(x: {[key: string]: mixed}) {
  17.   bar(x);
  18. }
  19.  
  20. function bar(y: MyObj): string {
  21.   return y.foo;
  22. }
  23.  
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