Mirrors/rust-analyzer
2
0
Fork 0
mirror of https://github.com/rust-lang/rust-analyzer synced 2025-01-13 21:54:42 +00:00
Code Issues Projects Releases Packages Wiki Activity

Document match_ast!

Browse source
This commit is contained in:
kjeremy 2019-10-30 14:38:45 -04:00
parent eee55d4663
commit 7ad55e976c
1 changed files with 14 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
crates/ra_syntax/src/lib.rs
View file

@ -160,6 +160,20 @@ impl SourceFile {
}
}
/// Matches a `SyntaxNode` against an `ast` type.
///
/// # Example:
///
/// ```ignore
/// match_ast! {
/// match node {
/// ast::CallExpr(it) => { ... },
/// ast::MethodCallExpr(it) => { ... },
/// ast::MacroCall(it) => { ... },
/// _ => None,
/// }
/// }
/// ```
#[macro_export]
macro_rules! match_ast {
(match $node:ident {