mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 23:34:48 +00:00
119 lines
4.2 KiB
Plaintext
119 lines
4.2 KiB
Plaintext
error: no rules expected the token `bcd`
|
|
--> $DIR/trace_faulty_macros.rs:7:26
|
|
|
|
|
LL | macro_rules! my_faulty_macro {
|
|
| ---------------------------- when calling this macro
|
|
LL | () => {
|
|
LL | my_faulty_macro!(bcd);
|
|
| ^^^ no rules expected this token in macro call
|
|
...
|
|
LL | my_faulty_macro!();
|
|
| ------------------ in this macro invocation
|
|
|
|
|
= note: while trying to match end of macro
|
|
= note: this error originates in the macro `my_faulty_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
|
|
|
|
note: trace_macro
|
|
--> $DIR/trace_faulty_macros.rs:31:5
|
|
|
|
|
LL | my_faulty_macro!();
|
|
| ^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: expanding `my_faulty_macro! { }`
|
|
= note: to `my_faulty_macro! (bcd);`
|
|
= note: expanding `my_faulty_macro! { bcd }`
|
|
|
|
error: recursion limit reached while expanding `my_recursive_macro!`
|
|
--> $DIR/trace_faulty_macros.rs:22:9
|
|
|
|
|
LL | my_recursive_macro!();
|
|
| ^^^^^^^^^^^^^^^^^^^^^
|
|
...
|
|
LL | my_recursive_macro!();
|
|
| --------------------- in this macro invocation
|
|
|
|
|
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "8"]` attribute to your crate (`trace_faulty_macros`)
|
|
= note: this error originates in the macro `my_recursive_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
|
|
|
|
note: trace_macro
|
|
--> $DIR/trace_faulty_macros.rs:32:5
|
|
|
|
|
LL | my_recursive_macro!();
|
|
| ^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: expanding `my_recursive_macro! { }`
|
|
= note: to `my_recursive_macro! ();`
|
|
= note: expanding `my_recursive_macro! { }`
|
|
= note: to `my_recursive_macro! ();`
|
|
= note: expanding `my_recursive_macro! { }`
|
|
= note: to `my_recursive_macro! ();`
|
|
= note: expanding `my_recursive_macro! { }`
|
|
= note: to `my_recursive_macro! ();`
|
|
|
|
error: expected expression, found pattern `A { a: a, b: 0, c: _, .. }`
|
|
--> $DIR/trace_faulty_macros.rs:16:9
|
|
|
|
|
LL | $a
|
|
| ^^ expected expression
|
|
...
|
|
LL | let a = pat_macro!();
|
|
| ------------ in this macro invocation
|
|
|
|
|
= note: this error originates in the macro `pat_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
|
|
|
|
error[E0774]: `derive` may only be applied to `struct`s, `enum`s and `union`s
|
|
--> $DIR/trace_faulty_macros.rs:42:1
|
|
|
|
|
LL | #[derive(Debug)]
|
|
| ^^^^^^^^^^^^^^^^ not applicable here
|
|
LL | fn use_derive_macro_as_attr() {}
|
|
| -------------------------------- not a `struct`, `enum` or `union`
|
|
|
|
error: expected expression, found pattern `1 + 1`
|
|
--> $DIR/trace_faulty_macros.rs:49:37
|
|
|
|
|
LL | (let $p:pat = $e:expr) => {test!(($p,$e))};
|
|
| ------- -- this is interpreted as expression, but it is expected to be pattern
|
|
| |
|
|
| this macro fragment matcher is expression
|
|
...
|
|
LL | (($p:pat, $e:pat)) => {let $p = $e;};
|
|
| ------ ^^ expected expression
|
|
| |
|
|
| this macro fragment matcher is pattern
|
|
...
|
|
LL | test!(let x = 1+1);
|
|
| ------------------
|
|
| | |
|
|
| | this is expected to be expression
|
|
| in this macro invocation
|
|
|
|
|
= note: when forwarding a matched fragment to another macro-by-example, matchers in the second macro will see an opaque AST of the fragment type, not the underlying tokens
|
|
= note: this error originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
|
|
|
|
note: trace_macro
|
|
--> $DIR/trace_faulty_macros.rs:36:13
|
|
|
|
|
LL | let a = pat_macro!();
|
|
| ^^^^^^^^^^^^
|
|
|
|
|
= note: expanding `pat_macro! { }`
|
|
= note: to `pat_macro! (A { a : a, b : 0, c : _, .. });`
|
|
= note: expanding `pat_macro! { A { a : a, b : 0, c : _, .. } }`
|
|
= note: to `A { a: a, b: 0, c: _, .. }`
|
|
|
|
note: trace_macro
|
|
--> $DIR/trace_faulty_macros.rs:53:5
|
|
|
|
|
LL | test!(let x = 1+1);
|
|
| ^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: expanding `test! { let x = 1+1 }`
|
|
= note: to `test! ((x, 1 + 1))`
|
|
= note: expanding `test! { (x, 1 + 1) }`
|
|
= note: to `let x = 1 + 1;`
|
|
|
|
error: aborting due to 5 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0774`.
|