From 0e49abb7fbe9239b97f0b7168ec359014c63f8c0 Mon Sep 17 00:00:00 2001
From: Ville Penttinen <villem.penttinen@gmail.com>
Date: Tue, 12 Mar 2019 09:24:46 +0200
Subject: Refactor CallInfo function signatures to new FunctionSignature type

This is used by CallInfo to create a pretty printed function signature that can
be used with completions and other places as well.
---
 crates/ra_lsp_server/src/conv.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'crates/ra_lsp_server/src/conv.rs')

diff --git a/crates/ra_lsp_server/src/conv.rs b/crates/ra_lsp_server/src/conv.rs
index 74e91c236..4d6ede316 100644
--- a/crates/ra_lsp_server/src/conv.rs
+++ b/crates/ra_lsp_server/src/conv.rs
@@ -174,6 +174,28 @@ impl Conv for ra_ide_api::Documentation {
     }
 }
 
+impl Conv for ra_ide_api::FunctionSignature {
+    type Output = lsp_types::SignatureInformation;
+    fn conv(self) -> Self::Output {
+        use lsp_types::{ParameterInformation, ParameterLabel, SignatureInformation};
+
+        let label = self.to_string();
+
+        let documentation = self.doc.map(|it| it.conv());
+
+        let parameters: Vec<ParameterInformation> = self
+            .parameters
+            .into_iter()
+            .map(|param| ParameterInformation {
+                label: ParameterLabel::Simple(param),
+                documentation: None,
+            })
+            .collect();
+
+        SignatureInformation { label, documentation, parameters: Some(parameters) }
+    }
+}
+
 impl ConvWith for TextEdit {
     type Ctx = LineIndex;
     type Output = Vec<lsp_types::TextEdit>;
-- 
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