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-rw-r--r--tests/ui/rust-2018/future-proofing-locals.rs50
1 files changed, 50 insertions, 0 deletions
diff --git a/tests/ui/rust-2018/future-proofing-locals.rs b/tests/ui/rust-2018/future-proofing-locals.rs
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+++ b/tests/ui/rust-2018/future-proofing-locals.rs
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+// edition:2018
+
+#![allow(non_camel_case_types)]
+#![allow(unused_imports)]
+
+mod T {
+ pub struct U;
+}
+mod x {
+ pub struct y;
+}
+
+fn type_param<T>() {
+ use T as _; //~ ERROR imports cannot refer to type parameters
+ use T::U; //~ ERROR imports cannot refer to type parameters
+ use T::*; //~ ERROR imports cannot refer to type parameters
+}
+
+fn self_import<T>() {
+ use T; //~ ERROR imports cannot refer to type parameters
+}
+
+fn let_binding() {
+ let x = 10;
+
+ use x as _; //~ ERROR imports cannot refer to local variables
+ use x::y; // OK
+ use x::*; // OK
+}
+
+fn param_binding(x: u8) {
+ use x; //~ ERROR imports cannot refer to local variables
+}
+
+fn match_binding() {
+ match 0 {
+ x => {
+ use x; //~ ERROR imports cannot refer to local variables
+ }
+ }
+}
+
+fn nested<T>() {
+ let x = 10;
+
+ use {T as _, x}; //~ ERROR imports cannot refer to type parameters
+ //~| ERROR imports cannot refer to local variables
+}
+
+fn main() {}