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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:06:31 +0000
commit2ff14448863ac1a1dd9533461708e29aae170c2d (patch)
tree85b9fea2bbfe3f06473cfa381eed11f273b57c5c /src/test/ui/hashmap/hashmap-index-mut.stderr
parentAdding debian version 1.64.0+dfsg1-1. (diff)
downloadrustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz
rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+error[E0594]: cannot assign to data in an index of `HashMap<u32, u32>`
+ --> $DIR/hashmap-index-mut.rs:5:5
+ |
+LL | map[&0] = 1;
+ | ^^^^^^^^^^^ cannot assign
+ |
+ = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `HashMap<u32, u32>`
+help: to modify a `HashMap<u32, u32>`, use `.get_mut()`, `.insert()` or the entry API
+ |
+LL | map.insert(&0, 1);
+ | ~~~~~~~~ ~ +
+LL | map.get_mut(&0).map(|val| { *val = 1; });
+ | ~~~~~~~~~ ~~~~~~~~~~~~~~~~~~ ++++
+LL | let val = map.entry(&0).or_insert(1);
+ | +++++++++ ~~~~~~~ ~~~~~~~~~~~~ +
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0594`.