From f50784410243054e3f04f92f9ead7cd623866000 Mon Sep 17 00:00:00 2001
From: Eddy Petrisor <eddy.petrisor@gmail.com>
Date: Thu, 23 May 2019 12:21:25 +0300
Subject: [PATCH] errorsn.rs: Separate also the hints from each other to avoid
 accidental viewing

Signed-off-by: Eddy Petrisor <eddy.petrisor@gmail.com>
---
 exercises/error_handling/errorsn.rs | 76 +++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/exercises/error_handling/errorsn.rs b/exercises/error_handling/errorsn.rs
index 8d399674..b670729c 100644
--- a/exercises/error_handling/errorsn.rs
+++ b/exercises/error_handling/errorsn.rs
@@ -146,11 +146,49 @@ impl error::Error for CreationError {
 // `read_and_validate` returns and`test_with_str` has its signature fully
 // specified.
 
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 // Next hint: There are three places in `read_and_validate` that we call a
 // function that returns a `Result` (that is, the functions might fail).
 // Apply the `?` operator on those calls so that we return immediately from
 // `read_and_validate` if those function calls fail.
 
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 // Another hint: under the hood, the `?` operator calls `From::from`
 // on the error value to convert it to a boxed trait object, a Box<error::Error>,
 // which is polymorphic-- that means that lots of different kinds of errors
@@ -159,12 +197,50 @@ impl error::Error for CreationError {
 // Check out this section of the book:
 // https://doc.rust-lang.org/stable/book/second-edition/ch09-02-recoverable-errors-with-result.html#a-shortcut-for-propagating-errors-the--operator
 
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 // Another another hint: Note that because the `?` operator returns
 // the *unwrapped* value in the `Ok` case, if we want to return a `Result` from
 // `read_and_validate` for *its* success case, we'll have to rewrap a value
 // that we got from the return value of a `?`ed call in an `Ok`-- this will
 // look like `Ok(something)`.
 
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 // Another another another hint: `Result`s must be "used", that is, you'll
 // get a warning if you don't handle a `Result` that you get in your
 // function. Read more about that in the `std::result` module docs: