diff options
Diffstat (limited to 'src/test/ui/borrowck/index-mut-help.rs')
-rw-r--r-- | src/test/ui/borrowck/index-mut-help.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/index-mut-help.rs b/src/test/ui/borrowck/index-mut-help.rs new file mode 100644 index 000000000..d57ef975d --- /dev/null +++ b/src/test/ui/borrowck/index-mut-help.rs @@ -0,0 +1,14 @@ +// When mutably indexing a type that implements `Index` but not `IndexMut`, a +// special 'help' message is added to the output. + + +fn main() { + use std::collections::HashMap; + + let mut map = HashMap::new(); + map.insert("peter", "23".to_string()); + + map["peter"].clear(); //~ ERROR + map["peter"] = "0".to_string(); //~ ERROR + let _ = &mut map["peter"]; //~ ERROR +} |