1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
error: expected type, found `{`
--> $DIR/macro-fail.rs:30:27
|
LL | fn make_marker() -> impl Marker<gimme_a_const!(marker)> {
| ----------------------
| |
| this macro call doesn't expand to a type
| in this macro invocation
...
LL | ($rusty: ident) => {{ let $rusty = 3; *&$rusty }}
| ^ expected type
|
= note: this error originates in the macro `gimme_a_const` (in Nightly builds, run with -Z macro-backtrace for more info)
error: expected type, found `{`
--> $DIR/macro-fail.rs:30:27
|
LL | Example::<gimme_a_const!(marker)>
| ----------------------
| |
| this macro call doesn't expand to a type
| in this macro invocation
...
LL | ($rusty: ident) => {{ let $rusty = 3; *&$rusty }}
| ^ expected type
|
= note: this error originates in the macro `gimme_a_const` (in Nightly builds, run with -Z macro-backtrace for more info)
error: expected type, found `{`
--> $DIR/macro-fail.rs:4:10
|
LL | () => {{
| ^ expected type
...
LL | let _fail = Example::<external_macro!()>;
| -----------------
| |
| this macro call doesn't expand to a type
| in this macro invocation
|
= note: this error originates in the macro `external_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
error: unexpected end of macro invocation
--> $DIR/macro-fail.rs:40:25
|
LL | macro_rules! gimme_a_const {
| -------------------------- when calling this macro
...
LL | let _fail = Example::<gimme_a_const!()>;
| ^^^^^^^^^^^^^^^^ missing tokens in macro arguments
|
note: while trying to match meta-variable `$rusty:ident`
--> $DIR/macro-fail.rs:30:8
|
LL | ($rusty: ident) => {{ let $rusty = 3; *&$rusty }}
| ^^^^^^^^^^^^^
error[E0747]: type provided when a constant was expected
--> $DIR/macro-fail.rs:14:33
|
LL | fn make_marker() -> impl Marker<gimme_a_const!(marker)> {
| ^^^^^^^^^^^^^^^^^^^^^^
error[E0747]: type provided when a constant was expected
--> $DIR/macro-fail.rs:14:33
|
LL | fn make_marker() -> impl Marker<gimme_a_const!(marker)> {
| ^^^^^^^^^^^^^^^^^^^^^^
|
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
error[E0747]: type provided when a constant was expected
--> $DIR/macro-fail.rs:17:13
|
LL | Example::<gimme_a_const!(marker)>
| ^^^^^^^^^^^^^^^^^^^^^^
error[E0747]: type provided when a constant was expected
--> $DIR/macro-fail.rs:37:25
|
LL | let _fail = Example::<external_macro!()>;
| ^^^^^^^^^^^^^^^^^
error[E0747]: type provided when a constant was expected
--> $DIR/macro-fail.rs:40:25
|
LL | let _fail = Example::<gimme_a_const!()>;
| ^^^^^^^^^^^^^^^^
error: aborting due to 9 previous errors
For more information about this error, try `rustc --explain E0747`.
|
