diff options
| author | Phil Ellison <[email protected]> | 2019-08-12 20:39:11 +0100 |
|---|---|---|
| committer | Aleksey Kladov <[email protected]> | 2019-08-25 10:56:23 +0100 |
| commit | 200470692ff1023024f0d4a6c35deb43d3045f10 (patch) | |
| tree | 4243427223e07a9136c764e43c2dbf59f9a73772 /crates/ra_syntax/src | |
| parent | c8911e872eb46f811f645190e154b504fac157df (diff) | |
Cast SyntaxNodePtr to AstPtr directly
Diffstat (limited to 'crates/ra_syntax/src')
| -rw-r--r-- | crates/ra_syntax/src/ptr.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/crates/ra_syntax/src/ptr.rs b/crates/ra_syntax/src/ptr.rs index d24660ac3..992034ef0 100644 --- a/crates/ra_syntax/src/ptr.rs +++ b/crates/ra_syntax/src/ptr.rs | |||
| @@ -31,6 +31,13 @@ impl SyntaxNodePtr { | |||
| 31 | pub fn kind(self) -> SyntaxKind { | 31 | pub fn kind(self) -> SyntaxKind { |
| 32 | self.kind | 32 | self.kind |
| 33 | } | 33 | } |
| 34 | |||
| 35 | pub fn cast<N: AstNode>(self) -> Option<AstPtr<N>> { | ||
| 36 | if !N::can_cast(self.kind()) { | ||
| 37 | return None; | ||
| 38 | } | ||
| 39 | Some(AstPtr { raw: self, _ty: PhantomData }) | ||
| 40 | } | ||
| 34 | } | 41 | } |
| 35 | 42 | ||
| 36 | /// Like `SyntaxNodePtr`, but remembers the type of node | 43 | /// Like `SyntaxNodePtr`, but remembers the type of node |