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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:03:36 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:03:36 +0000
commit17d40c6057c88f4c432b0d7bac88e1b84cb7e67f (patch)
tree3f66c4a5918660bb8a758ab6cda5ff8ee4f6cdcd /src/tools/clippy/src/docs/from_over_into.txt
parentAdding upstream version 1.64.0+dfsg1. (diff)
downloadrustc-f7f0cc2a5d72e2c61c1f6900e70eec992bea4273.tar.xz
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Adding upstream version 1.65.0+dfsg1.upstream/1.65.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+### What it does
+Searches for implementations of the `Into<..>` trait and suggests to implement `From<..>` instead.
+
+### Why is this bad?
+According the std docs implementing `From<..>` is preferred since it gives you `Into<..>` for free where the reverse isn't true.
+
+### Example
+```
+struct StringWrapper(String);
+
+impl Into<StringWrapper> for String {
+ fn into(self) -> StringWrapper {
+ StringWrapper(self)
+ }
+}
+```
+Use instead:
+```
+struct StringWrapper(String);
+
+impl From<String> for StringWrapper {
+ fn from(s: String) -> StringWrapper {
+ StringWrapper(s)
+ }
+}
+``` \ No newline at end of file