librustc: Always parse macro!()
/macro![]
as expressions if not
followed by a semicolon. This allows code like `vec![1i, 2, 3].len();` to work. This breaks code that uses macros as statements without putting semicolons after them, such as: fn main() { ... assert!(a == b) assert!(c == d) println(...); } It also breaks code that uses macros as items without semicolons: local_data_key!(foo) fn main() { println("hello world") } Add semicolons to fix this code. Those two examples can be fixed as follows: fn main() { ... assert!(a == b); assert!(c == d); println(...); } local_data_key!(foo); fn main() { println("hello world") } RFC #378. Closes #18635. [breaking-change]
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222 changed files with 2330 additions and 2039 deletions
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@ -18,12 +18,16 @@ use ext::build::AstBuilder;
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use parse::token;
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use ptr::P;
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thread_local!(static REGISTERED_DIAGNOSTICS: RefCell<HashMap<Name, Option<Name>>> = {
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RefCell::new(HashMap::new())
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})
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thread_local!(static USED_DIAGNOSTICS: RefCell<HashMap<Name, Span>> = {
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RefCell::new(HashMap::new())
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})
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thread_local! {
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static REGISTERED_DIAGNOSTICS: RefCell<HashMap<Name, Option<Name>>> = {
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RefCell::new(HashMap::new())
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}
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}
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thread_local! {
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static USED_DIAGNOSTICS: RefCell<HashMap<Name, Span>> = {
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RefCell::new(HashMap::new())
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}
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}
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fn with_registered_diagnostics<T, F>(f: F) -> T where
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F: FnOnce(&mut HashMap<Name, Option<Name>>) -> T,
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