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Am I missing something? More error help. #10181

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scabug opened this issue Feb 12, 2017 · 2 comments
Closed

Am I missing something? More error help. #10181

scabug opened this issue Feb 12, 2017 · 2 comments
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@eed3si9n
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enhancement has PR help wanted
Milestone
2.13.0-RC1

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@scabug
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scabug commented Feb 12, 2017

Errors could report near-misses:

import scala.io.StdIn.{readline, readInt}

http://stackoverflow.com/questions/42183644/scala-import-scala-io-stdin-readline-error-importing

And the deprecation message could emit the corrected line for easy cut/paste:

scala> readLine
<console>:12: warning: method readLine in trait DeprecatedPredef is deprecated (since 2.11.0): use the method in `scala.io.StdIn`
       readLine       // hint: scala.io.StdIn.readLine
       ^
res0: String = abc

scala> import scala.io.StdIn.{readline => line}
<console>:11: error: value readline is not a member of object scala.io.StdIn
       import scala.io.StdIn.{readline => line}    // hint: import scala.io.StdIn.{readLine => line}
              ^

scala> import scala.io.stdin.{readLine => line}
<console>:11: error: object stdin is not a member of package io
       import scala.io.stdin.{readLine => line}    // hint: import scala.io.StdIn.{readLine => line}
                       ^
@scabug
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scabug commented Feb 12, 2017

Imported From: https://issues.scala-lang.org/browse/SI-10181?orig=1
Reporter: @som-snytt
Affected Versions: 2.12.1

@scabug scabug added this to the Backlog milestone Apr 7, 2017
eed3si9n added a commit to eed3si9n/scala that referenced this issue Jun 3, 2018
@eed3si9n
Suggest possible names in NotAMemberError
70d7b27 
Fixes scala/bug#10181

With this change, NotAMemberError checks for possible members under target with edit distance of 2 or 1. To avoid false positives, `eq`, `ne`, `_1` etc are filtered out.

```scala
scala> import scala.io.StdIn.{readline, readInt}
              ^
       error: value readline is not a member of object scala.io.StdIn
       did you mean readLine?

scala> import scala.io.stdin.{readLine => line}
                       ^
       error: object stdin is not a member of package io
       did you mean StdIn?

scala> import scala.sth
              ^
       error: object sth is not a member of package scala
       did you mean sys or math?
```
@eed3si9n eed3si9n mentioned this issue Jun 3, 2018
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@eed3si9n eed3si9n self-assigned this Jun 3, 2018
@eed3si9n
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eed3si9n commented Jun 3, 2018

I have a PR - scala/scala#6711

eed3si9n added a commit to eed3si9n/scala that referenced this issue Jun 9, 2018
@eed3si9n
Suggest possible names in NotAMemberError
ddf17e5 
Fixes scala/bug#10181

With this change, NotAMemberError checks for possible members under target with edit distance of 2 or 1.

```scala
scala> import scala.io.StdIn.{readline, readInt}
              ^
       error: value readline is not a member of object scala.io.StdIn
       did you mean readLine?

scala> import scala.io.stdin.{readLine => line}
                       ^
       error: object stdin is not a member of package io
       did you mean StdIn?

scala> import scala.sth
              ^
       error: object sth is not a member of package scala
       did you mean sys or math?
```
eed3si9n added a commit to eed3si9n/scala that referenced this issue Jun 12, 2018
@eed3si9n
Suggest possible names in NotAMemberError
08b27c3 
Fixes scala/bug#10181

With this change, NotAMemberError checks for possible members under target with edit distance of 2 or 1.

```scala
scala> import scala.io.StdIn.{readline, readInt}
              ^
       error: value readline is not a member of object scala.io.StdIn
       did you mean readLine?

scala> import scala.io.stdin.{readLine => line}
                       ^
       error: object stdin is not a member of package io
       did you mean StdIn?

scala> import scala.sth
              ^
       error: object sth is not a member of package scala
       did you mean sys or math?
```
lrytz pushed a commit to eed3si9n/scala that referenced this issue Nov 2, 2018
@eed3si9n @lrytz
Suggest possible names in NotAMemberError
2367326 
Fixes scala/bug#10181

With this change, NotAMemberError checks for possible members under target with edit distance of 2 or 1.

```scala
scala> import scala.io.StdIn.{readline, readInt}
              ^
       error: value readline is not a member of object scala.io.StdIn
       did you mean readLine?

scala> import scala.io.stdin.{readLine => line}
                       ^
       error: object stdin is not a member of package io
       did you mean StdIn?

scala> import scala.sth
              ^
       error: object sth is not a member of package scala
       did you mean sys or math?
```
lrytz pushed a commit to eed3si9n/scala that referenced this issue Nov 2, 2018
@eed3si9n @lrytz
Suggest possible names in NotAMemberError
1db387a 
Fixes scala/bug#10181

With this change, NotAMemberError checks for possible members under target with edit distance of 2 or 1.

```scala
scala> import scala.io.StdIn.{readline, readInt}
              ^
       error: value readline is not a member of object scala.io.StdIn
       did you mean readLine?

scala> import scala.io.stdin.{readLine => line}
                       ^
       error: object stdin is not a member of package io
       did you mean StdIn?

scala> import scala.sth
              ^
       error: object sth is not a member of package scala
       did you mean sys or math?
```
@lrytz lrytz modified the milestones: Backlog, 2.13.0-RC1 Nov 2, 2018
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