diff options
Diffstat (limited to 'crates/ide/src/view_hir.rs')
-rw-r--r-- | crates/ide/src/view_hir.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/crates/ide/src/view_hir.rs b/crates/ide/src/view_hir.rs new file mode 100644 index 000000000..cfcfb7cfb --- /dev/null +++ b/crates/ide/src/view_hir.rs | |||
@@ -0,0 +1,25 @@ | |||
1 | use hir::{Function, Semantics}; | ||
2 | use ide_db::base_db::FilePosition; | ||
3 | use ide_db::RootDatabase; | ||
4 | use syntax::{algo::find_node_at_offset, ast, AstNode}; | ||
5 | |||
6 | // Feature: View Hir | ||
7 | // | ||
8 | // |=== | ||
9 | // | Editor | Action Name | ||
10 | // | ||
11 | // | VS Code | **Rust Analyzer: View Hir** | ||
12 | // |=== | ||
13 | pub(crate) fn view_hir(db: &RootDatabase, position: FilePosition) -> String { | ||
14 | body_hir(db, position).unwrap_or("Not inside a function body".to_string()) | ||
15 | } | ||
16 | |||
17 | fn body_hir(db: &RootDatabase, position: FilePosition) -> Option<String> { | ||
18 | let sema = Semantics::new(db); | ||
19 | let source_file = sema.parse(position.file_id); | ||
20 | |||
21 | let function = find_node_at_offset::<ast::Fn>(source_file.syntax(), position.offset)?; | ||
22 | |||
23 | let function: Function = sema.to_def(&function)?; | ||
24 | Some(function.debug_hir(db)) | ||
25 | } | ||