Merge #2843

2843: Add inlay parameter name hints for call expr r=matklad a=imtsuki

This patch adds Intellij-like parameter name hints for literal values in function calls.

<img width="624" alt="Screenshot" src="https://user-images.githubusercontent.com/8423594/72366533-68d7f800-3735-11ea-9279-cf193ca8ca2f.png">

Signed-off-by: imtsuki <[email protected]>

Co-authored-by: imtsuki <[email protected]>

2 files changed, 2 insertions, 0 deletions

diff --git a/crates/ra_lsp_server/src/main_loop/handlers.rs b/crates/ra_lsp_server/src/main_loop/handlers.rs
index d5a8bbe4d..f2db575ea 100644
--- a/crates/ra_lsp_server/src/main_loop/handlers.rs
+++ b/crates/ra_lsp_server/src/main_loop/handlers.rs
@@ -953,6 +953,7 @@ pub fn handle_inlay_hints(
             range: api_type.range.conv_with(&line_index),
             kind: match api_type.kind {
                 ra_ide::InlayKind::TypeHint => InlayKind::TypeHint,
+                ra_ide::InlayKind::ParameterHint => InlayKind::ParameterHint,
             },
         })
         .collect())
diff --git a/crates/ra_lsp_server/src/req.rs b/crates/ra_lsp_server/src/req.rs
index 8098ff31d..dc327f53d 100644
--- a/crates/ra_lsp_server/src/req.rs
+++ b/crates/ra_lsp_server/src/req.rs
@@ -197,6 +197,7 @@ pub struct InlayHintsParams {
 #[derive(Debug, PartialEq, Eq, Deserialize, Serialize)]
 pub enum InlayKind {
     TypeHint,
+    ParameterHint,
 }
 
 #[derive(Debug, Deserialize, Serialize)]