From d34588bf83898870d7f9b4b49ac2a5f71c77dabb Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 28 Aug 2018 18:22:52 +0300
Subject: create module smartly

---
 crates/server/src/main.rs               |  1 +
 crates/server/src/main_loop/handlers.rs | 52 ++++++++++++++++++++++++---------
 crates/server/src/path_map.rs           | 23 ++++++++++-----
 crates/server/src/server_world.rs       |  5 +---
 4 files changed, 56 insertions(+), 25 deletions(-)

(limited to 'crates/server/src')

diff --git a/crates/server/src/main.rs b/crates/server/src/main.rs
index 615dd082c..1a93af65b 100644
--- a/crates/server/src/main.rs
+++ b/crates/server/src/main.rs
@@ -18,6 +18,7 @@ extern crate libeditor;
 extern crate libanalysis;
 extern crate libsyntax2;
 extern crate im;
+extern crate relative_path;
 
 mod io;
 mod caps;
diff --git a/crates/server/src/main_loop/handlers.rs b/crates/server/src/main_loop/handlers.rs
index ca5cd5ab1..92ffb30c3 100644
--- a/crates/server/src/main_loop/handlers.rs
+++ b/crates/server/src/main_loop/handlers.rs
@@ -7,7 +7,8 @@ use languageserver_types::{
     CompletionItem,
 };
 use serde_json::{to_value, from_value};
-use libanalysis::{Query, QuickFix, FileId};
+use url_serde;
+use libanalysis::{self, Query, FileId};
 use libeditor;
 use libsyntax2::{
     TextUnit,
@@ -144,24 +145,49 @@ pub fn handle_code_action(
         if !contains_offset_nonstrict(diag.range, offset) {
             continue;
         }
-        let cmd = match quick_fix {
-            QuickFix::CreateFile(path) => {
-                let path = &path.to_str().unwrap()[3..]; // strip `../` b/c url is weird
-                let uri = params.text_document.uri.join(path)
-                    .unwrap();
-                let uri = ::url_serde::Ser::new(&uri);
-                Command {
-                    title: "Create file".to_string(),
-                    command: "libsyntax-rust.createFile".to_string(),
-                    arguments: Some(vec![to_value(uri).unwrap()]),
-                }
-            }
+        let mut ops = Vec::new();
+        for op in quick_fix.fs_ops {
+            let op = match op {
+                libanalysis::FsOp::CreateFile { anchor, path } => {
+                    let uri = world.file_id_to_uri(anchor)?;
+                    let path = &path.as_str()[3..]; // strip `../` b/c url is weird
+                    let uri = uri.join(path)?;
+                    FsOp::CreateFile { uri }
+                },
+                libanalysis::FsOp::MoveFile { file, path } => {
+                    let src = world.file_id_to_uri(file)?;
+                    let path = &path.as_str()[3..]; // strip `../` b/c url is weird
+                    let dst = src.join(path)?;
+                    FsOp::MoveFile { src, dst }
+                },
+            };
+            ops.push(op)
+        }
+        let cmd = Command {
+            title: "Create module".to_string(),
+            command: "libsyntax-rust.fsEdit".to_string(),
+            arguments: Some(vec![to_value(ops).unwrap()]),
         };
         res.push(cmd)
     }
     return Ok(Some(res));
 }
 
+#[derive(Serialize)]
+#[serde(tag = "type", rename_all = "camelCase")]
+enum FsOp {
+    CreateFile {
+        #[serde(with = "url_serde")]
+        uri: Url
+    },
+    MoveFile {
+        #[serde(with = "url_serde")]
+        src: Url,
+        #[serde(with = "url_serde")]
+        dst: Url,
+    }
+}
+
 pub fn handle_runnables(
     world: ServerWorld,
     params: req::RunnablesParams,
diff --git a/crates/server/src/path_map.rs b/crates/server/src/path_map.rs
index d2b811a3b..f4ac47e70 100644
--- a/crates/server/src/path_map.rs
+++ b/crates/server/src/path_map.rs
@@ -1,6 +1,7 @@
 use std::path::{PathBuf, Path, Component};
 use im;
-use libanalysis::{FileId};
+use relative_path::RelativePath;
+use libanalysis::{FileId, FileResolver};
 
 #[derive(Debug, Default, Clone)]
 pub struct PathMap {
@@ -34,12 +35,6 @@ impl PathMap {
             .as_path()
     }
 
-    pub fn resolve(&self, id: FileId, relpath: &Path) -> Option<FileId> {
-        let path = self.get_path(id).join(relpath);
-        let path = normalize(&path);
-        self.get_id(&path)
-    }
-
     fn insert(&mut self, path: PathBuf, id: FileId) {
         self.path2id.insert(path.clone(), id);
         self.id2path.insert(id, path.clone());
@@ -52,6 +47,18 @@ impl PathMap {
     }
 }
 
+impl FileResolver for PathMap {
+    fn file_stem(&self, id: FileId) -> String {
+        self.get_path(id).file_stem().unwrap().to_str().unwrap().to_string()
+    }
+
+    fn resolve(&self, id: FileId, path: &RelativePath) -> Option<FileId> {
+        let path = path.to_path(&self.get_path(id));
+        let path = normalize(&path);
+        self.get_id(&path)
+    }
+}
+
 fn normalize(path: &Path) -> PathBuf {
     let mut components = path.components().peekable();
     let mut ret = if let Some(c @ Component::Prefix(..)) = components.peek().cloned() {
@@ -89,7 +96,7 @@ mod test {
         let id1 = m.get_or_insert(PathBuf::from("/foo"));
         let id2 = m.get_or_insert(PathBuf::from("/foo/bar.rs"));
         assert_eq!(
-            m.resolve(id1, &PathBuf::from("bar.rs")),
+            m.resolve(id1, &RelativePath::new("bar.rs")),
             Some(id2),
         )
     }
diff --git a/crates/server/src/server_world.rs b/crates/server/src/server_world.rs
index c0d2efb86..1593cd59f 100644
--- a/crates/server/src/server_world.rs
+++ b/crates/server/src/server_world.rs
@@ -87,11 +87,8 @@ impl ServerWorldState {
     }
 
     pub fn snapshot(&self) -> ServerWorld {
-        let pm = self.path_map.clone();
         ServerWorld {
-            analysis: self.analysis.snapshot(move |id, path| {
-                pm.resolve(id, path)
-            }),
+            analysis: self.analysis.snapshot(self.path_map.clone()),
             path_map: self.path_map.clone()
         }
     }
-- 
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