added pch on xcode, fixed Node move semantic

engine.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		AD3B1EC01E3B8B7600E918E3 /* layout.cpp in Sources */ = {isa = PBXBuildFile; fileRef = AD3B1EBE1E3B8B7600E918E3 /* layout.cpp */; };
 		AD58E0531E107411006ACC15 /* main.cpp in Sources */ = {isa = PBXBuildFile; fileRef = AD58E0521E107411006ACC15 /* main.cpp */; };
 		AD58E05A1E10752E006ACC15 /* OpenGL.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AD58E0591E10752E006ACC15 /* OpenGL.framework */; };
 		AD58E05C1E107536006ACC15 /* Cocoa.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AD58E05B1E107536006ACC15 /* Cocoa.framework */; };
@@ -37,6 +38,8 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		AD3B1EBE1E3B8B7600E918E3 /* layout.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = layout.cpp; sourceTree = "<group>"; };
+		AD3B1EBF1E3B8B7600E918E3 /* layout.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = layout.h; sourceTree = "<group>"; };
 		AD58E04F1E107411006ACC15 /* engine */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = engine; sourceTree = BUILT_PRODUCTS_DIR; };
 		AD58E0521E107411006ACC15 /* main.cpp */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.objcpp; path = main.cpp; sourceTree = "<group>"; };
 		AD58E0591E10752E006ACC15 /* OpenGL.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = OpenGL.framework; path = System/Library/Frameworks/OpenGL.framework; sourceTree = SDKROOT; };
@@ -100,6 +103,8 @@
 		AD58E0511E107411006ACC15 /* engine */ = {
 			isa = PBXGroup;
 			children = (
+				AD3B1EBE1E3B8B7600E918E3 /* layout.cpp */,
+				AD3B1EBF1E3B8B7600E918E3 /* layout.h */,
 				AD58E0631E2A76FD006ACC15 /* shader.cpp */,
 				AD58E0641E2A76FD006ACC15 /* shader.hpp */,
 				AD58E0521E107411006ACC15 /* main.cpp */,
@@ -187,6 +192,7 @@
 				AD58E0651E2A76FD006ACC15 /* shader.cpp in Sources */,
 				AD58E0761E3421F2006ACC15 /* YGNodeList.c in Sources */,
 				AD58E06B1E2A774F006ACC15 /* texture.cpp in Sources */,
+				AD3B1EC01E3B8B7600E918E3 /* layout.cpp in Sources */,
 				AD58E0721E2A90EF006ACC15 /* app.cpp in Sources */,
 				AD58E0531E107411006ACC15 /* main.cpp in Sources */,
 				AD58E0681E2A7741006ACC15 /* image.cpp in Sources */,
@@ -224,6 +230,7 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
+				GCC_PREFIX_HEADER = engine/pch.h;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
 					"$(inherited)",
@@ -272,6 +279,7 @@
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
+				GCC_PREFIX_HEADER = engine/pch.h;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;

engine/layout.cpp

@@ -170,6 +170,8 @@ void Node::load(const char* path)
 
     tinyxml2::XMLDocument xml;
     auto ret = xml.LoadFile(path);
+    if (ret != tinyxml2::XMLError::XML_SUCCESS)
+        return;
     load_internal(xml.RootElement());
 }
 

engine/layout.h

@@ -110,7 +110,7 @@ public:
     glm::vec4 m_clip;
     Node(const Node&) = delete;
     Node& operator=(const Node&) = delete;
-    Node& operator=(Node&& o) { return Node(std::forward<Node>(o)); }
+    Node&& operator=(Node&& o) { return std::forward<Node>(o); }
     Node(Node&& o)
     {
         children = std::move(o.children);

engine/pch.h

@@ -1,4 +1,4 @@
-#pragma once
+//#pragma once
 
 #ifdef __APPLE__
     #include <OpenGL/gl3.h>
@@ -12,6 +12,7 @@
     #include <gl\GL.h>
 #endif
 
+#ifdef __cplusplus
 #include <map>
 #include <cmath>
 #include <stack>
@@ -32,3 +33,4 @@
 
 #include <tinyxml2.h>
 #include <yoga/Yoga.h>
+#endif