Merge #143

143: Implement Find All References and Rename for local variables r=matklad a=kjeremy

Expose `find_all_refs` in `Analysis`. This currently only works for local variables.

Use this in the LSP to implement find all references and rename.

Co-authored-by: Jeremy A. Kolb <[email protected]>

1 files changed, 42 insertions, 0 deletions

diff --git a/crates/ra_analysis/tests/tests.rs b/crates/ra_analysis/tests/tests.rs
index e0c637d65..0c2c69ea0 100644
--- a/crates/ra_analysis/tests/tests.rs
+++ b/crates/ra_analysis/tests/tests.rs
@@ -10,6 +10,8 @@ use std::sync::Arc;
 use ra_analysis::{
     Analysis, AnalysisHost, CrateGraph, CrateId, FileId, FileResolver, FnDescriptor, JobHandle,
 };
+use ra_syntax::TextRange;
+
 use relative_path::{RelativePath, RelativePathBuf};
 use rustc_hash::FxHashMap;
 use test_utils::{assert_eq_dbg, extract_offset};
@@ -225,3 +227,43 @@ fn bar() {
     assert_eq!(desc.ret_type, None);
     assert_eq!(param, Some(1));
 }
+
+fn get_all_refs(text: &str) -> Vec<(FileId, TextRange)> {
+    let (offset, code) = extract_offset(text);
+    let code = code.as_str();
+
+    let (_handle, token) = JobHandle::new();
+    let snap = analysis(&[("/lib.rs", code)]);
+
+    snap.find_all_refs(FileId(1), offset, &token)
+}
+
+#[test]
+fn test_find_all_refs_for_local() {
+    let code = r#"
+    fn main() {
+        let mut i = 1;
+        let j = 1;
+        i = i<|> + j;
+
+        {
+            i = 0;
+        }
+
+        i = 5;
+    }"#;
+
+    let refs = get_all_refs(code);
+    assert_eq!(refs.len(), 5);
+}
+
+#[test]
+fn test_find_all_refs_for_param_inside() {
+    let code = r#"
+    fn foo(i : u32) -> u32 {
+        i<|>
+    }"#;
+
+    let refs = get_all_refs(code);
+    assert_eq!(refs.len(), 2);
+}
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