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Add original test case from issue

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This commit is contained in:
Marc Dominik Migge 2021-02-25 22:03:11 +01:00
parent 9fe9d94abd
commit cbe6eec3e6
2 changed files with 31 additions and 10 deletions
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21
tests/ui/unit_arg.rs
View file

@ -31,6 +31,26 @@ fn baz<T: Debug>(t: T) {
foo(t);
}
trait Tr {
type Args;
fn do_it(args: Self::Args);
}
struct A;
impl Tr for A {
type Args = ();
fn do_it(_: Self::Args) {}
}
struct B;
impl Tr for B {
type Args = <A as Tr>::Args;
fn do_it(args: Self::Args) {
A::do_it(args)
}
}
fn bad() {
foo({
1;
@ -78,6 +98,7 @@ fn ok() {
let named_unit_arg = ();
foo(named_unit_arg);
baz(());
B::do_it(());
}
fn question_mark() -> Result<(), ()> {

20
tests/ui/unit_arg.stderr
View file

@ -1,5 +1,5 @@
error: passing a unit value to a function
--> $DIR/unit_arg.rs:35:5
--> $DIR/unit_arg.rs:55:5
|
LL | / foo({
LL | | 1;
@ -20,7 +20,7 @@ LL | foo(());
|
error: passing a unit value to a function
--> $DIR/unit_arg.rs:38:5
--> $DIR/unit_arg.rs:58:5
|
LL | foo(foo(1));
| ^^^^^^^^^^^
@ -32,7 +32,7 @@ LL | foo(());
|
error: passing a unit value to a function
--> $DIR/unit_arg.rs:39:5
--> $DIR/unit_arg.rs:59:5
|
LL | / foo({
LL | | foo(1);
@ -54,7 +54,7 @@ LL | foo(());
|
error: passing a unit value to a function
--> $DIR/unit_arg.rs:44:5
--> $DIR/unit_arg.rs:64:5
|
LL | / b.bar({
LL | | 1;
@ -74,7 +74,7 @@ LL | b.bar(());
|
error: passing unit values to a function
--> $DIR/unit_arg.rs:47:5
--> $DIR/unit_arg.rs:67:5
|
LL | taking_multiple_units(foo(0), foo(1));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -87,7 +87,7 @@ LL | taking_multiple_units((), ());
|
error: passing unit values to a function
--> $DIR/unit_arg.rs:48:5
--> $DIR/unit_arg.rs:68:5
|
LL | / taking_multiple_units(foo(0), {
LL | | foo(1);
@ -110,7 +110,7 @@ LL | taking_multiple_units((), ());
|
error: passing unit values to a function
--> $DIR/unit_arg.rs:52:5
--> $DIR/unit_arg.rs:72:5
|
LL | / taking_multiple_units(
LL | | {
@ -140,7 +140,7 @@ LL | foo(2);
...
error: passing a unit value to a function
--> $DIR/unit_arg.rs:63:13
--> $DIR/unit_arg.rs:83:13
|
LL | None.or(Some(foo(2)));
| ^^^^^^^^^^^^
@ -154,7 +154,7 @@ LL | });
|
error: passing a unit value to a function
--> $DIR/unit_arg.rs:66:5
--> $DIR/unit_arg.rs:86:5
|
LL | foo(foo(()));
| ^^^^^^^^^^^^
@ -166,7 +166,7 @@ LL | foo(());
|
error: passing a unit value to a function
--> $DIR/unit_arg.rs:102:5
--> $DIR/unit_arg.rs:123:5
|
LL | Some(foo(1))
| ^^^^^^^^^^^^