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authorMatthias Krüger <matthias.krueger@famsik.de>2022-08-16 06:05:59 +0200
committerGitHub <noreply@github.com>2022-08-16 06:05:59 +0200
commit76dd1663d9bcad3d9d708af1625412d2ef87fb19 (patch)
tree21481c463c974640ac88ef9580438e999785d700 /src/test/ui/array-slice-vec/suggest-array-length.rs
parentfc735b05b88d9310db779ba7d2bf8829b7268623 (diff)
parent12e609ba3cb7a395601c3b6762682248b0a325ad (diff)
downloadrust-76dd1663d9bcad3d9d708af1625412d2ef87fb19.tar.gz
rust-76dd1663d9bcad3d9d708af1625412d2ef87fb19.zip
Rollup merge of #100590 - TaKO8Ki:suggest-adding-array-length, r=compiler-errors
Suggest adding an array length if possible

fixes #100448
Diffstat (limited to 'src/test/ui/array-slice-vec/suggest-array-length.rs')
-rw-r--r--src/test/ui/array-slice-vec/suggest-array-length.rs14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/array-slice-vec/suggest-array-length.rs b/src/test/ui/array-slice-vec/suggest-array-length.rs
new file mode 100644
index 00000000000..b0867f4e396
--- /dev/null
+++ b/src/test/ui/array-slice-vec/suggest-array-length.rs
@@ -0,0 +1,14 @@
+// run-rustfix
+#![allow(unused_variables, dead_code, non_upper_case_globals)]
+
+fn main() {
+    const Foo: [i32; _] = [1, 2, 3];
+    //~^ ERROR in expressions, `_` can only be used on the left-hand side of an assignment
+    //~| ERROR using `_` for array lengths is unstable
+    let foo: [i32; _] = [1, 2, 3];
+    //~^ ERROR in expressions, `_` can only be used on the left-hand side of an assignment
+    //~| ERROR using `_` for array lengths is unstable
+    let bar: [i32; _] = [0; 3];
+    //~^ ERROR in expressions, `_` can only be used on the left-hand side of an assignment
+    //~| ERROR using `_` for array lengths is unstable
+}