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dee7d0e730
Properly record metavar spans for other expansions other than TT This properly records metavar spans for nonterminals other than tokentree. This means that we operations like `span.to(other_span)` work correctly for macros. As you can see, other diagnostics involving metavars have improved as a result. Fixes #132908 Alternative to #133270 cc `@ehuss` cc `@petrochenkov`
72 lines
1.6 KiB
Rust
72 lines
1.6 KiB
Rust
//@ run-rustfix
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#![deny(unsafe_attr_outside_unsafe)]
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macro_rules! tt {
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($e:tt) => {
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#$e
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extern "C" fn foo() {}
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}
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}
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macro_rules! ident {
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($e:ident) => {
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#[unsafe($e)]
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//~^ ERROR: unsafe attribute used without unsafe
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//~| WARN this is accepted in the current edition
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extern "C" fn bar() {}
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}
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}
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macro_rules! ident2 {
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($e:ident, $l:literal) => {
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#[unsafe($e = $l)]
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//~^ ERROR: unsafe attribute used without unsafe
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//~| WARN this is accepted in the current edition
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extern "C" fn bars() {}
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}
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}
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macro_rules! meta {
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($m:meta) => {
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#[$m]
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extern "C" fn baz() {}
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}
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}
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macro_rules! meta2 {
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($m:meta) => {
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#[$m]
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extern "C" fn baw() {}
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}
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}
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macro_rules! with_cfg_attr {
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() => {
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#[cfg_attr(all(), unsafe(link_section = ".custom_section"))]
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//~^ ERROR: unsafe attribute used without unsafe
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//~| WARN this is accepted in the current edition
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pub extern "C" fn abc() {}
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};
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}
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tt!([unsafe(no_mangle)]);
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//~^ ERROR: unsafe attribute used without unsafe
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//~| WARN this is accepted in the current edition
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ident!(no_mangle);
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meta!(unsafe(no_mangle));
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//~^ ERROR: unsafe attribute used without unsafe
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//~| WARN this is accepted in the current edition
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meta2!(unsafe(export_name = "baw"));
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//~^ ERROR: unsafe attribute used without unsafe
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//~| WARN this is accepted in the current edition
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ident2!(export_name, "bars");
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with_cfg_attr!();
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#[unsafe(no_mangle)]
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//~^ ERROR: unsafe attribute used without unsafe
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//~| WARN this is accepted in the current edition
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extern "C" fn one() {}
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fn main() {}
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