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ba231db3f3
This eliminates the case in `failed_to_match_macro` to check for a function-like invocation of a macro with no function-like rules. Instead, macro kind mismatches now result in an unresolved macro, and we detect this case in `unresolved_macro_suggestions`, which now carefully distinguishes between a kind mismatch and other errors. This also handles cases of forward-referenced attributes and cyclic attributes. Expand test coverage to include all of these cases.
53 lines
1.4 KiB
Rust
53 lines
1.4 KiB
Rust
#![feature(macro_attr)]
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macro_rules! local_attr {
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attr() { $($body:tt)* } => {
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compile_error!(concat!("local_attr: ", stringify!($($body)*)));
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};
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//~^^ ERROR: local_attr
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}
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//~v NOTE: `fn_only` exists, but has no `attr` rules
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macro_rules! fn_only {
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{} => {}
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}
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//~v NOTE: `attr_only` exists, but has no rules for function-like invocation
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macro_rules! attr_only {
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attr() {} => {}
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}
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fn main() {
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//~v NOTE: in this expansion of #[local_attr]
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#[local_attr]
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struct S;
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//~vv ERROR: cannot find macro `local_attr` in this scope
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//~| NOTE: `local_attr` is in scope, but it is an attribute
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local_attr!(arg);
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//~v ERROR: cannot find attribute `fn_only` in this scope
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#[fn_only]
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struct S;
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attr_only!(); //~ ERROR: cannot find macro `attr_only` in this scope
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}
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//~vv ERROR: cannot find attribute `forward_referenced_attr` in this scope
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//~| NOTE: consider moving the definition of `forward_referenced_attr` before this call
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#[forward_referenced_attr]
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struct S;
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//~v NOTE: a macro with the same name exists, but it appears later
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macro_rules! forward_referenced_attr {
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attr() {} => {}
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}
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//~vv ERROR: cannot find attribute `cyclic_attr` in this scope
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//~| NOTE: consider moving the definition of `cyclic_attr` before this call
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#[cyclic_attr]
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//~v NOTE: a macro with the same name exists, but it appears later
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macro_rules! cyclic_attr {
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attr() {} => {}
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}
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