Update lifetime errors to specifically note temporaries #36171
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| //~^ borrowed value must be valid until here | ||
| //~^ NOTE temporary value needs to live until here |
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Nit: can we make this a UI test?
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@jonathandturner r=me if we move the "suggestions" to a |
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@bors r=nikomatsakis |
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📌 Commit 5112b40 has been approved by |
| //~| NOTE does not live long enough | ||
| //~| NOTE borrowed value only valid until here | ||
| //~| HELP consider using a `let` binding to increase its lifetime | ||
| //~| NOTE temporary value created here |
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Trailing whitespace. make tidy won't be happy.
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@bors r=nikomatsakis |
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📌 Commit 439afcd has been approved by |
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@frewsxcv - thanks for the catch with tidy :) |
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@bors rollup |
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Sep 2, 2016
…nikomatsakis Update lifetime errors to specifically note temporaries This PR updates the error message we give in the case of a temporary value not living long enough. Before: <img width="497" alt="screen shot 2016-08-31 at 10 02 47 am" src="https://cloud.githubusercontent.com/assets/547158/18138551/27a06794-6f62-11e6-9ee2-bdf8bed75ca7.png"> Now: <img width="488" alt="screen shot 2016-08-31 at 10 03 01 am" src="https://cloud.githubusercontent.com/assets/547158/18138557/2e5cf322-6f62-11e6-9047-4a78abf3d78c.png"> Specifically, it makes the following changes: * Detects if a temporary is being used. If so, it changes the labels to mention that a temporary value specifically is in question * Simplifies wording of the existing labels to focus on lifetimes rather than values being valid * Changes the help to a note, since the help+span wasn't as helpful (and sometimes more confusing) than just a note. r? @nikomatsakis
sophiajt
pushed a commit
to sophiajt/rust
that referenced
this pull request
Sep 2, 2016
…nikomatsakis Update lifetime errors to specifically note temporaries This PR updates the error message we give in the case of a temporary value not living long enough. Before: <img width="497" alt="screen shot 2016-08-31 at 10 02 47 am" src="https://cloud.githubusercontent.com/assets/547158/18138551/27a06794-6f62-11e6-9ee2-bdf8bed75ca7.png"> Now: <img width="488" alt="screen shot 2016-08-31 at 10 03 01 am" src="https://cloud.githubusercontent.com/assets/547158/18138557/2e5cf322-6f62-11e6-9047-4a78abf3d78c.png"> Specifically, it makes the following changes: * Detects if a temporary is being used. If so, it changes the labels to mention that a temporary value specifically is in question * Simplifies wording of the existing labels to focus on lifetimes rather than values being valid * Changes the help to a note, since the help+span wasn't as helpful (and sometimes more confusing) than just a note. r? @nikomatsakis
sophiajt
pushed a commit
to sophiajt/rust
that referenced
this pull request
Sep 2, 2016
…nikomatsakis Update lifetime errors to specifically note temporaries This PR updates the error message we give in the case of a temporary value not living long enough. Before: <img width="497" alt="screen shot 2016-08-31 at 10 02 47 am" src="https://cloud.githubusercontent.com/assets/547158/18138551/27a06794-6f62-11e6-9ee2-bdf8bed75ca7.png"> Now: <img width="488" alt="screen shot 2016-08-31 at 10 03 01 am" src="https://cloud.githubusercontent.com/assets/547158/18138557/2e5cf322-6f62-11e6-9047-4a78abf3d78c.png"> Specifically, it makes the following changes: * Detects if a temporary is being used. If so, it changes the labels to mention that a temporary value specifically is in question * Simplifies wording of the existing labels to focus on lifetimes rather than values being valid * Changes the help to a note, since the help+span wasn't as helpful (and sometimes more confusing) than just a note. r? @nikomatsakis
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Yay :) |
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This PR updates the error message we give in the case of a temporary value not living long enough.
Before:
Now:
Specifically, it makes the following changes:
r? @nikomatsakis