rfc:non-capturing_catches
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| rfc:non-capturing_catches [2020/04/06 08:37] – ++ maxsem | rfc:non-capturing_catches [2020/04/07 14:45] – maxsem | ||
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| - | ====== PHP RFC: Your Title Here ====== | + | ====== PHP RFC: non-capturing catches |
| * Version: 0.9 | * Version: 0.9 | ||
| * Date: 2020-04-05 | * Date: 2020-04-05 | ||
| * Author: Max Semenik < | * Author: Max Semenik < | ||
| - | * Status: | + | * Status: |
| * First Published at: https:// | * First Published at: https:// | ||
| ===== Introduction ===== | ===== Introduction ===== | ||
| Currently, PHP requires to capture the exception being caught to a variable: | Currently, PHP requires to capture the exception being caught to a variable: | ||
| - | <php> | + | <code php> |
| try { | try { | ||
| foo(); | foo(); | ||
| Line 14: | Line 14: | ||
| die($ex-> | die($ex-> | ||
| } | } | ||
| - | </php> | + | </code> |
| However, you need to specify the variable even if it's not used: | However, you need to specify the variable even if it's not used: | ||
| - | <php> | + | |
| + | <code php> | ||
| try { | try { | ||
| changeImportantData(); | changeImportantData(); | ||
| Line 22: | Line 24: | ||
| echo "You don't have permission to do this"; | echo "You don't have permission to do this"; | ||
| } | } | ||
| - | </php> | + | </code> |
| Someone reading the above code is left to wonder if the author intended to not use the exception variable or it's a bug. | Someone reading the above code is left to wonder if the author intended to not use the exception variable or it's a bug. | ||
| ===== Proposal ===== | ===== Proposal ===== | ||
| Allow catching exceptions without capturing them to variables: | Allow catching exceptions without capturing them to variables: | ||
| - | <php> | + | <code php> |
| try { | try { | ||
| changeImportantData(); | changeImportantData(); | ||
| Line 33: | Line 36: | ||
| echo "You don't have permission to do this"; | echo "You don't have permission to do this"; | ||
| } | } | ||
| - | </php> | + | </code> |
| ===== Prior art ===== | ===== Prior art ===== | ||
| + | Such change was first proposed in [[https:// | ||
| + | <code php> | ||
| + | try { | ||
| + | foo(); | ||
| + | } catch { | ||
| + | bar(); | ||
| + | } | ||
| + | </ | ||
| + | Meanwhile what I'm proposing here has received mostly positive feedback so I feel it's worth revisiting. | ||
| ===== Backward Incompatible Changes ===== | ===== Backward Incompatible Changes ===== | ||
| Line 50: | Line 62: | ||
| ===== Proposed Voting Choices ===== | ===== Proposed Voting Choices ===== | ||
| - | Include these so readers know where you are heading and can discuss the proposed voting options. | + | Yes/no. |
| ===== Patches and Tests ===== | ===== Patches and Tests ===== | ||
| Line 63: | Line 75: | ||
| ===== References ===== | ===== References ===== | ||
| - | Links to external references, discussions or RFCs | + | * https:// |
| ===== Rejected Features ===== | ===== Rejected Features ===== | ||
| Keep this updated with features that were discussed on the mail lists. | Keep this updated with features that were discussed on the mail lists. | ||
rfc/non-capturing_catches.txt · Last modified: 2020/05/26 14:39 by maxsem