diff --git a/sjscript/src/sjscript/Token.d b/sjscript/src/sjscript/Token.d
index 8c54899..cc909bc 100644
--- a/sjscript/src/sjscript/Token.d
+++ b/sjscript/src/sjscript/Token.d
@@ -3,7 +3,8 @@ module sjscript.Token;
 
 import std.algorithm,
        std.array,
-       std.ascii;
+       std.ascii,
+       std.conv;
 
 import dast.tokenize;
 
diff --git a/src/sj/Game.d b/src/sj/Game.d
index 1e28cdb..beb5be0 100644
--- a/src/sj/Game.d
+++ b/src/sj/Game.d
@@ -10,7 +10,7 @@ import std.algorithm,
 
 import gl4d;
 
-static import sjplayer;
+import sjplayer;
 
 import sj.AbstractGame,
        sj.Args,
@@ -38,10 +38,10 @@ class Game : AbstractGame {
     // To prevent working GC, all objects should be created at here.
 
     fonts_    = new FontSet;
-    programs_ = new ProgramSet;
+    programs_ = new sj.ProgramSet.ProgramSet;
 
-    posteffect_ = new sjplayer.PostEffect(
-        programs_.Get!(sjplayer.PostEffectProgram),
+    posteffect_ = new PostEffect(
+        programs_.Get!PostEffectProgram,
         vec2i(args.window_size, args.window_size));
 
     lobby_ = new LobbyWorld(programs_);
@@ -108,11 +108,11 @@ class Game : AbstractGame {
  private:
   Music[] music_list_;
 
-  FontSet    fonts_;
-  ProgramSet programs_;
+  FontSet                  fonts_;
+  sj.ProgramSet.ProgramSet programs_;
 
-  sjplayer.PostEffect posteffect_;
-  LobbyWorld          lobby_;
+  PostEffect posteffect_;
+  LobbyWorld lobby_;
 
   TitleScene   title_;
   SelectScene  select_;
diff --git a/src/sj/LoadingScene.d b/src/sj/LoadingScene.d
index c9e6cb2..a201493 100644
--- a/src/sj/LoadingScene.d
+++ b/src/sj/LoadingScene.d
@@ -8,7 +8,7 @@ import std.math,
 
 import gl4d;
 
-static import sjplayer;
+import sjplayer;
 
 import sj.FontSet,
        sj.KeyInput,
@@ -40,10 +40,10 @@ class LoadingScene : SceneInterface {
 
   ///
   this(
-      LobbyWorld          lobby,
-      sjplayer.PostEffect posteffect,
-      ProgramSet          programs,
-      FontSet             fonts) {
+      LobbyWorld               lobby,
+      PostEffect               posteffect,
+      sj.ProgramSet.ProgramSet programs,
+      FontSet                  fonts) {
     lobby_      = lobby;
     posteffect_ = posteffect;
     programs_   = programs;
@@ -110,9 +110,9 @@ class LoadingScene : SceneInterface {
   }
 
  private:
-  sjplayer.PostEffect posteffect_;
+  PostEffect posteffect_;
 
-  ProgramSet programs_;
+  sj.ProgramSet.ProgramSet programs_;
 
   LobbyWorld lobby_;
 
diff --git a/src/sj/Music.d b/src/sj/Music.d
index 721cb68..889513e 100644
--- a/src/sj/Music.d
+++ b/src/sj/Music.d
@@ -14,7 +14,7 @@ import derelict.sfml2.audio,
 
 import gl4d;
 
-static import sjplayer;
+import sjplayer;
 
 ///
 class Music {
@@ -82,9 +82,8 @@ class Music {
   }
 
   ///
-  sjplayer.Context CreatePlayerContext(
-      sjplayer.PostEffect posteffect, sjplayer.ProgramSet programs) const {
-    return sjplayer.CreateContextFromText(
+  Context CreatePlayerContext(PostEffect posteffect, ProgramSet programs) const {
+    return CreateContextFromText(
         script_path_.readText, posteffect, programs);
   }
 
diff --git a/src/sj/PlayScene.d b/src/sj/PlayScene.d
index 9511248..770db17 100644
--- a/src/sj/PlayScene.d
+++ b/src/sj/PlayScene.d
@@ -5,7 +5,7 @@ import std.conv;
 
 import gl4d;
 
-static import sjplayer;
+import sjplayer;
 
 import sj.KeyInput,
        sj.Music,
@@ -23,7 +23,7 @@ class PlayScene : SceneInterface {
   enum NearnessScoreRatio = 10;
 
   ///
-  this(sjplayer.PostEffect posteffect) {
+  this(PostEffect posteffect) {
     posteffect_ = posteffect;
   }
   ~this() {
@@ -36,7 +36,7 @@ class PlayScene : SceneInterface {
   }
 
   ///
-  void Initialize(Music music, sjplayer.Context context, float offset_beat) {
+  void Initialize(Music music, Context context, float offset_beat) {
     music_   = music;
     context_ = context;
 
@@ -94,12 +94,12 @@ class PlayScene : SceneInterface {
     return result;
   }
 
-  sjplayer.PostEffect posteffect_;
+  PostEffect posteffect_;
 
   ResultScene result_scene_;
 
-  Music            music_;
-  sjplayer.Context context_;
+  Music   music_;
+  Context context_;
 
   float beat_;
   int   score_;
diff --git a/src/sj/TitleScene.d b/src/sj/TitleScene.d
index 7afb135..39ad070 100644
--- a/src/sj/TitleScene.d
+++ b/src/sj/TitleScene.d
@@ -6,7 +6,7 @@ import std.conv,
 
 import gl4d;
 
-static import sjplayer;
+import sjplayer;
 
 import sj.KeyInput,
        sj.LobbyWorld,
@@ -40,7 +40,7 @@ class TitleScene : SceneInterface {
   enum Contrast = vec4(1.2, 1.2, 1.2, 1);
 
   ///
-  this(sjplayer.PostEffect posteffect, LobbyWorld lobby, ProgramSet program) {
+  this(PostEffect posteffect, LobbyWorld lobby, sj.ProgramSet.ProgramSet program) {
     posteffect_ = posteffect;
     lobby_      = lobby;
     title_      = program.Get!TitleTextProgram;
@@ -89,7 +89,7 @@ class TitleScene : SceneInterface {
  private:
   SelectScene select_scene_;
 
-  sjplayer.PostEffect posteffect_;
+  PostEffect posteffect_;
 
   LobbyWorld lobby_;
 
diff --git a/thirdparty/dast/src/dast/parse/itemset.d b/thirdparty/dast/src/dast/parse/itemset.d
index 41464b1..a4ffac1 100644
--- a/thirdparty/dast/src/dast/parse/itemset.d
+++ b/thirdparty/dast/src/dast/parse/itemset.d
@@ -119,7 +119,7 @@ do {
 
     T[] new_items;
     foreach (item; items) {
-      const type =
+      auto type =
         !item.canAdvance || item.next.isTerminal? null: item.next.nonTerminalType;
       if (resolved_types[].canFind!"a is b"(type)) continue;