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authorAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-05 09:13:28 +0100
committerAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-11 09:32:08 +0000
commitcf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch)
tree40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/lint/lint-lowercase-static-const-pattern-rename.rs
parentca855e6e42787ecd062d81d53336fe6788ef51a9 (diff)
downloadrust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz
rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip
Move /src/test to /tests
Diffstat (limited to 'tests/ui/lint/lint-lowercase-static-const-pattern-rename.rs')
-rw-r--r--tests/ui/lint/lint-lowercase-static-const-pattern-rename.rs63
1 files changed, 63 insertions, 0 deletions
diff --git a/tests/ui/lint/lint-lowercase-static-const-pattern-rename.rs b/tests/ui/lint/lint-lowercase-static-const-pattern-rename.rs
new file mode 100644
index 00000000000..d085db43aa9
--- /dev/null
+++ b/tests/ui/lint/lint-lowercase-static-const-pattern-rename.rs
@@ -0,0 +1,63 @@
+// check-pass
+// Issue #7526: lowercase static constants in patterns look like bindings
+
+// This is similar to lint-lowercase-static-const-pattern.rs, except it
+// shows the expected usual workaround (choosing a different name for
+// the static definition) and also demonstrates that one can work
+// around this problem locally by renaming the constant in the `use`
+// form to an uppercase identifier that placates the lint.
+
+#![deny(non_upper_case_globals)]
+
+pub const A : isize = 97;
+
+fn f() {
+    let r = match (0,0) {
+        (0, A) => 0,
+        (x, y) => 1 + x + y,
+    };
+    assert_eq!(r, 1);
+    let r = match (0,97) {
+        (0, A) => 0,
+        (x, y) => 1 + x + y,
+    };
+    assert_eq!(r, 0);
+}
+
+mod m {
+    #[allow(non_upper_case_globals)]
+    pub const aha : isize = 7;
+}
+
+fn g() {
+    use self::m::aha as AHA;
+    let r = match (0,0) {
+        (0, AHA) => 0,
+        (x, y)   => 1 + x + y,
+    };
+    assert_eq!(r, 1);
+    let r = match (0,7) {
+        (0, AHA) => 0,
+        (x, y)   => 1 + x + y,
+    };
+    assert_eq!(r, 0);
+}
+
+fn h() {
+    let r = match (0,0) {
+        (0, self::m::aha) => 0,
+        (x, y)      => 1 + x + y,
+    };
+    assert_eq!(r, 1);
+    let r = match (0,7) {
+        (0, self::m::aha) => 0,
+        (x, y)      => 1 + x + y,
+    };
+    assert_eq!(r, 0);
+}
+
+pub fn main () {
+    f();
+    g();
+    h();
+}