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-rw-r--r--src/tools/clippy/tests/ui/map_identity.stderr43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/map_identity.stderr b/src/tools/clippy/tests/ui/map_identity.stderr
new file mode 100644
index 000000000..b6a77281f
--- /dev/null
+++ b/src/tools/clippy/tests/ui/map_identity.stderr
@@ -0,0 +1,43 @@
+error: unnecessary map of the identity function
+ --> $DIR/map_identity.rs:8:47
+ |
+LL | let _: Vec<_> = x.iter().map(not_identity).map(|x| return x).collect();
+ | ^^^^^^^^^^^^^^^^^^ help: remove the call to `map`
+ |
+ = note: `-D clippy::map-identity` implied by `-D warnings`
+
+error: unnecessary map of the identity function
+ --> $DIR/map_identity.rs:9:57
+ |
+LL | let _: Vec<_> = x.iter().map(std::convert::identity).map(|y| y).collect();
+ | ^^^^^^^^^^^ help: remove the call to `map`
+
+error: unnecessary map of the identity function
+ --> $DIR/map_identity.rs:9:29
+ |
+LL | let _: Vec<_> = x.iter().map(std::convert::identity).map(|y| y).collect();
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the call to `map`
+
+error: unnecessary map of the identity function
+ --> $DIR/map_identity.rs:10:32
+ |
+LL | let _: Option<u8> = Some(3).map(|x| x);
+ | ^^^^^^^^^^^ help: remove the call to `map`
+
+error: unnecessary map of the identity function
+ --> $DIR/map_identity.rs:11:36
+ |
+LL | let _: Result<i8, f32> = Ok(-3).map(|x| {
+ | ____________________________________^
+LL | | return x;
+LL | | });
+ | |______^ help: remove the call to `map`
+
+error: unnecessary map of the identity function
+ --> $DIR/map_identity.rs:21:36
+ |
+LL | let _: Result<u32, u32> = Ok(1).map_err(|a| a);
+ | ^^^^^^^^^^^^^^^ help: remove the call to `map_err`
+
+error: aborting due to 6 previous errors
+