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-rw-r--r--crates/ra_db/src/lib.rs2
-rw-r--r--crates/ra_db/src/syntax_ptr.rs52
2 files changed, 0 insertions, 54 deletions
diff --git a/crates/ra_db/src/lib.rs b/crates/ra_db/src/lib.rs
index dbeb9ec71..32d7e09b9 100644
--- a/crates/ra_db/src/lib.rs
+++ b/crates/ra_db/src/lib.rs
@@ -1,6 +1,5 @@
1//! ra_db defines basic database traits. The concrete DB is defined by ra_ide_api. 1//! ra_db defines basic database traits. The concrete DB is defined by ra_ide_api.
2mod cancellation; 2mod cancellation;
3mod syntax_ptr;
4mod input; 3mod input;
5mod loc2id; 4mod loc2id;
6pub mod mock; 5pub mod mock;
@@ -12,7 +11,6 @@ use ra_syntax::{TextUnit, TextRange, SourceFile, TreeArc};
12pub use ::salsa as salsa; 11pub use ::salsa as salsa;
13pub use crate::{ 12pub use crate::{
14 cancellation::Canceled, 13 cancellation::Canceled,
15 syntax_ptr::LocalSyntaxPtr,
16 input::{ 14 input::{
17 FilesDatabase, FileId, CrateId, SourceRoot, SourceRootId, CrateGraph, Dependency, 15 FilesDatabase, FileId, CrateId, SourceRoot, SourceRootId, CrateGraph, Dependency,
18 FileTextQuery, FileSourceRootQuery, SourceRootQuery, LocalRootsQuery, LibraryRootsQuery, CrateGraphQuery, 16 FileTextQuery, FileSourceRootQuery, SourceRootQuery, LocalRootsQuery, LibraryRootsQuery, CrateGraphQuery,
diff --git a/crates/ra_db/src/syntax_ptr.rs b/crates/ra_db/src/syntax_ptr.rs
deleted file mode 100644
index 5270826da..000000000
--- a/crates/ra_db/src/syntax_ptr.rs
+++ /dev/null
@@ -1,52 +0,0 @@
1use ra_syntax::{AstNode, SourceFile, SyntaxKind, SyntaxNode, TextRange, TreeArc};
2
3/// A pointer to a syntax node inside a file.
4#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
5pub struct LocalSyntaxPtr {
6 range: TextRange,
7 kind: SyntaxKind,
8}
9
10impl LocalSyntaxPtr {
11 pub fn new(node: &SyntaxNode) -> LocalSyntaxPtr {
12 LocalSyntaxPtr {
13 range: node.range(),
14 kind: node.kind(),
15 }
16 }
17
18 pub fn resolve(self, file: &SourceFile) -> TreeArc<SyntaxNode> {
19 let mut curr = file.syntax();
20 loop {
21 if curr.range() == self.range && curr.kind() == self.kind {
22 return curr.to_owned();
23 }
24 curr = curr
25 .children()
26 .find(|it| self.range.is_subrange(&it.range()))
27 .unwrap_or_else(|| panic!("can't resolve local ptr to SyntaxNode: {:?}", self))
28 }
29 }
30
31 pub fn range(self) -> TextRange {
32 self.range
33 }
34
35 pub fn kind(self) -> SyntaxKind {
36 self.kind
37 }
38}
39
40#[test]
41fn test_local_syntax_ptr() {
42 use ra_syntax::{ast, AstNode};
43 let file = SourceFile::parse("struct Foo { f: u32, }");
44 let field = file
45 .syntax()
46 .descendants()
47 .find_map(ast::NamedFieldDef::cast)
48 .unwrap();
49 let ptr = LocalSyntaxPtr::new(field.syntax());
50 let field_syntax = ptr.resolve(&file);
51 assert_eq!(field.syntax(), &*field_syntax);
52}