1 #### Note: this error code is no longer emitted by the compiler.
3 This error indicates that an empty match expression is invalid because the type
4 it is matching on is non-empty (there exist values of this type). In safe code
5 it is impossible to create an instance of an empty type, so empty match
6 expressions are almost never desired. This error is typically fixed by adding
7 one or more cases to the match expression.
9 An example of an empty type is `enum Empty { }`. So, the following will work:
24 fn foo(x: Option<String>) {