Replace 'ERR_EXPLAIN' with 'ERR_FAIL_*_MSG' in "platform", "modules/gdnative", "modules/gdscript" directories.

13 files changed, 54 insertions, 140 deletions

diff --git a/platform/android/audio_driver_opensl.cpp b/platform/android/audio_driver_opensl.cpp
index 3f7fd07997..711088c158 100644
--- a/platform/android/audio_driver_opensl.cpp
+++ b/platform/android/audio_driver_opensl.cpp
@@ -97,17 +97,10 @@ Error AudioDriverOpenSL::init() {
 		{ (SLuint32)SL_ENGINEOPTION_THREADSAFE, (SLuint32)SL_BOOLEAN_TRUE }
 	};
 	res = slCreateEngine(&sl, 1, EngineOption, 0, NULL, NULL);
-	if (res != SL_RESULT_SUCCESS) {
+	ERR_FAIL_COND_V_MSG(res != SL_RESULT_SUCCESS, ERR_INVALID_PARAMETER, "Could not initialize OpenSL.");
 
-		ERR_EXPLAIN("Could not Initialize OpenSL");
-		ERR_FAIL_V(ERR_INVALID_PARAMETER);
-	}
 	res = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
-	if (res != SL_RESULT_SUCCESS) {
-
-		ERR_EXPLAIN("Could not Realize OpenSL");
-		ERR_FAIL_V(ERR_INVALID_PARAMETER);
-	}
+	ERR_FAIL_COND_V_MSG(res != SL_RESULT_SUCCESS, ERR_INVALID_PARAMETER, "Could not realize OpenSL.");
 
 	return OK;
 }
diff --git a/platform/android/export/export.cpp b/platform/android/export/export.cpp
index 2fba8bbf7f..dc0a63d171 100644
--- a/platform/android/export/export.cpp
+++ b/platform/android/export/export.cpp
@@ -725,8 +725,7 @@ class EditorExportPlatformAndroid : public EditorExportPlatform {
 						uint32_t string_at = decode_uint32(&p_manifest[st_offset + i * 4]);
 						string_at += st_offset + string_count * 4;
 
-						ERR_EXPLAIN("Unimplemented, can't read utf8 string table.");
-						ERR_FAIL_COND(string_flags & UTF8_FLAG);
+						ERR_FAIL_COND_MSG(string_flags & UTF8_FLAG, "Unimplemented, can't read UTF-8 string table.");
 
 						if (string_flags & UTF8_FLAG) {
 
@@ -863,8 +862,7 @@ class EditorExportPlatformAndroid : public EditorExportPlatform {
 						memcpy(manifest_end.ptrw(), &p_manifest[ofs], manifest_end.size());
 
 						int32_t attr_name_string = string_table.find("name");
-						ERR_EXPLAIN("Template does not have 'name' attribute");
-						ERR_FAIL_COND(attr_name_string == -1);
+						ERR_FAIL_COND_MSG(attr_name_string == -1, "Template does not have 'name' attribute.");
 
 						int32_t ns_android_string = string_table.find("http://schemas.android.com/apk/res/android");
 						if (ns_android_string == -1) {
@@ -896,8 +894,7 @@ class EditorExportPlatformAndroid : public EditorExportPlatform {
 						} else if (dof_index == 2) {
 							required_value_string = "true";
 						} else {
-							ERR_EXPLAIN("Unknown dof index " + itos(dof_index));
-							ERR_FAIL();
+							ERR_FAIL_MSG("Unknown DoF index: " + itos(dof_index) + ".");
 						}
 						int32_t required_value = string_table.find(required_value_string);
 						if (required_value == -1) {
@@ -989,12 +986,10 @@ class EditorExportPlatformAndroid : public EditorExportPlatform {
 						memcpy(manifest_end.ptrw(), &p_manifest[ofs], manifest_end.size());
 
 						int32_t attr_name_string = string_table.find("name");
-						ERR_EXPLAIN("Template does not have 'name' attribute");
-						ERR_FAIL_COND(attr_name_string == -1);
+						ERR_FAIL_COND_MSG(attr_name_string == -1, "Template does not have 'name' attribute.");
 
 						int32_t ns_android_string = string_table.find("android");
-						ERR_EXPLAIN("Template does not have 'android' namespace");
-						ERR_FAIL_COND(ns_android_string == -1);
+						ERR_FAIL_COND_MSG(ns_android_string == -1, "Template does not have 'android' namespace.");
 
 						int32_t attr_uses_permission_string = string_table.find("uses-permission");
 						if (attr_uses_permission_string == -1) {
diff --git a/platform/android/java_godot_lib_jni.cpp b/platform/android/java_godot_lib_jni.cpp
index 77f077456e..1159e93166 100644
--- a/platform/android/java_godot_lib_jni.cpp
+++ b/platform/android/java_godot_lib_jni.cpp
@@ -686,20 +686,11 @@ static void _initialize_java_modules() {
 			print_line("Loading Android module: " + m);
 			jstring strClassName = env->NewStringUTF(m.utf8().get_data());
 			jclass singletonClass = (jclass)env->CallObjectMethod(cls, findClass, strClassName);
-
-			if (!singletonClass) {
-
-				ERR_EXPLAIN("Couldn't find singleton for class: " + m);
-				ERR_CONTINUE(!singletonClass);
-			}
+			ERR_CONTINUE_MSG(!singletonClass, "Couldn't find singleton for class: " + m + ".");
 
 			jmethodID initialize = env->GetStaticMethodID(singletonClass, "initialize", "(Landroid/app/Activity;)Lorg/godotengine/godot/Godot$SingletonBase;");
+			ERR_CONTINUE_MSG(!initialize, "Couldn't find proper initialize function 'public static Godot.SingletonBase Class::initialize(Activity p_activity)' initializer for singleton class: " + m + ".");
 
-			if (!initialize) {
-
-				ERR_EXPLAIN("Couldn't find proper initialize function 'public static Godot.SingletonBase Class::initialize(Activity p_activity)' initializer for singleton class: " + m);
-				ERR_CONTINUE(!initialize);
-			}
 			jobject obj = env->CallStaticObjectMethod(singletonClass, initialize, godot_java->get_activity());
 			env->NewGlobalRef(obj);
 		}
diff --git a/platform/android/os_android.cpp b/platform/android/os_android.cpp
index ebc319e57d..701a351203 100644
--- a/platform/android/os_android.cpp
+++ b/platform/android/os_android.cpp
@@ -71,8 +71,7 @@ const char *OS_Android::get_video_driver_name(int p_driver) const {
 		case VIDEO_DRIVER_GLES2:
 			return "GLES2";
 	}
-	ERR_EXPLAIN("Invalid video driver index " + itos(p_driver));
-	ERR_FAIL_V(NULL);
+	ERR_FAIL_V_MSG(NULL, "Invalid video driver index: " + itos(p_driver) + ".");
 }
 int OS_Android::get_audio_driver_count() const {
 
@@ -223,10 +222,7 @@ bool OS_Android::request_permission(const String &p_name) {
 
 Error OS_Android::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path) {
 	p_library_handle = dlopen(p_path.utf8().get_data(), RTLD_NOW);
-	if (!p_library_handle) {
-		ERR_EXPLAIN("Can't open dynamic library: " + p_path + ". Error: " + dlerror());
-		ERR_FAIL_V(ERR_CANT_OPEN);
-	}
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ", error: " + dlerror() + ".");
 	return OK;
 }
 
diff --git a/platform/iphone/export/export.cpp b/platform/iphone/export/export.cpp
index a179b36bd5..1cbf4d6a70 100644
--- a/platform/iphone/export/export.cpp
+++ b/platform/iphone/export/export.cpp
@@ -768,8 +768,7 @@ Error EditorExportPlatformIOS::_export_additional_assets(const String &p_out_dir
 			DirAccess *da = DirAccess::create_for_path(asset);
 			if (!da) {
 				memdelete(filesystem_da);
-				ERR_EXPLAIN("Can't create directory: " + asset);
-				ERR_FAIL_V(ERR_CANT_CREATE);
+				ERR_FAIL_V_MSG(ERR_CANT_CREATE, "Can't create directory: " + asset + ".");
 			}
 			bool file_exists = da->file_exists(asset);
 			bool dir_exists = da->dir_exists(asset);
@@ -848,8 +847,7 @@ Error EditorExportPlatformIOS::export_project(const Ref<EditorExportPreset> &p_p
 	EditorProgress ep("export", "Exporting for iOS", 5, true);
 
 	String team_id = p_preset->get("application/app_store_team_id");
-	ERR_EXPLAIN("App Store Team ID not specified - cannot configure the project.");
-	ERR_FAIL_COND_V(team_id.length() == 0, ERR_CANT_OPEN);
+	ERR_FAIL_COND_V_MSG(team_id.length() == 0, ERR_CANT_OPEN, "App Store Team ID not specified - cannot configure the project.");
 
 	if (p_debug)
 		src_pkg_name = p_preset->get("custom_package/debug");
diff --git a/platform/iphone/os_iphone.cpp b/platform/iphone/os_iphone.cpp
index f5fce66059..825342f911 100644
--- a/platform/iphone/os_iphone.cpp
+++ b/platform/iphone/os_iphone.cpp
@@ -64,8 +64,7 @@ const char *OSIPhone::get_video_driver_name(int p_driver) const {
 		case VIDEO_DRIVER_GLES2:
 			return "GLES2";
 	}
-	ERR_EXPLAIN("Invalid video driver index " + itos(p_driver));
-	ERR_FAIL_V(NULL);
+	ERR_FAIL_V_MSG(NULL, "Invalid video driver index: " + itos(p_driver) + ".");
 };
 
 OSIPhone *OSIPhone::get_singleton() {
diff --git a/platform/javascript/http_client_javascript.cpp b/platform/javascript/http_client_javascript.cpp
index b4bab9a999..e6e933811f 100644
--- a/platform/javascript/http_client_javascript.cpp
+++ b/platform/javascript/http_client_javascript.cpp
@@ -68,21 +68,18 @@ Error HTTPClient::connect_to_host(const String &p_host, int p_port, bool p_ssl,
 
 void HTTPClient::set_connection(const Ref<StreamPeer> &p_connection) {
 
-	ERR_EXPLAIN("Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform");
-	ERR_FAIL();
+	ERR_FAIL_MSG("Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform.");
 }
 
 Ref<StreamPeer> HTTPClient::get_connection() const {
 
-	ERR_EXPLAIN("Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform");
-	ERR_FAIL_V(REF());
+	ERR_FAIL_V_MSG(REF(), "Accessing an HTTPClient's StreamPeer is not supported for the HTML5 platform.");
 }
 
 Error HTTPClient::prepare_request(Method p_method, const String &p_url, const Vector<String> &p_headers) {
 
 	ERR_FAIL_INDEX_V(p_method, METHOD_MAX, ERR_INVALID_PARAMETER);
-	ERR_EXPLAIN("HTTP methods TRACE and CONNECT are not supported for the HTML5 platform");
-	ERR_FAIL_COND_V(p_method == METHOD_TRACE || p_method == METHOD_CONNECT, ERR_UNAVAILABLE);
+	ERR_FAIL_COND_V_MSG(p_method == METHOD_TRACE || p_method == METHOD_CONNECT, ERR_UNAVAILABLE, "HTTP methods TRACE and CONNECT are not supported for the HTML5 platform.");
 	ERR_FAIL_COND_V(status != STATUS_CONNECTED, ERR_INVALID_PARAMETER);
 	ERR_FAIL_COND_V(host.empty(), ERR_UNCONFIGURED);
 	ERR_FAIL_COND_V(port < 0, ERR_UNCONFIGURED);
@@ -201,8 +198,7 @@ PoolByteArray HTTPClient::read_response_body_chunk() {
 
 void HTTPClient::set_blocking_mode(bool p_enable) {
 
-	ERR_EXPLAIN("HTTPClient blocking mode is not supported for the HTML5 platform");
-	ERR_FAIL_COND(p_enable);
+	ERR_FAIL_COND_MSG(p_enable, "HTTPClient blocking mode is not supported for the HTML5 platform.");
 }
 
 bool HTTPClient::is_blocking_mode_enabled() const {
diff --git a/platform/javascript/os_javascript.cpp b/platform/javascript/os_javascript.cpp
index 5363cd4af7..0179bf813d 100644
--- a/platform/javascript/os_javascript.cpp
+++ b/platform/javascript/os_javascript.cpp
@@ -192,9 +192,8 @@ void OS_JavaScript::set_window_fullscreen(bool p_enabled) {
 		strategy.filteringMode = EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT;
 		strategy.canvasResizedCallback = NULL;
 		EMSCRIPTEN_RESULT result = emscripten_request_fullscreen_strategy(NULL, false, &strategy);
-		ERR_EXPLAIN("Enabling fullscreen is only possible from an input callback for the HTML5 platform");
-		ERR_FAIL_COND(result == EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED);
-		ERR_FAIL_COND(result != EMSCRIPTEN_RESULT_SUCCESS);
+		ERR_FAIL_COND_MSG(result == EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED, "Enabling fullscreen is only possible from an input callback for the HTML5 platform.");
+		ERR_FAIL_COND_MSG(result != EMSCRIPTEN_RESULT_SUCCESS, "Enabling fullscreen is only possible from an input callback for the HTML5 platform.");
 		// Not fullscreen yet, so prevent "windowed" canvas dimensions from
 		// being overwritten.
 		entering_fullscreen = true;
@@ -582,8 +581,7 @@ void OS_JavaScript::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_s
 
 void OS_JavaScript::set_mouse_mode(OS::MouseMode p_mode) {
 
-	ERR_EXPLAIN("MOUSE_MODE_CONFINED is not supported for the HTML5 platform");
-	ERR_FAIL_COND(p_mode == MOUSE_MODE_CONFINED);
+	ERR_FAIL_COND_MSG(p_mode == MOUSE_MODE_CONFINED, "MOUSE_MODE_CONFINED is not supported for the HTML5 platform.");
 	if (p_mode == get_mouse_mode())
 		return;
 
@@ -602,9 +600,8 @@ void OS_JavaScript::set_mouse_mode(OS::MouseMode p_mode) {
 	} else if (p_mode == MOUSE_MODE_CAPTURED) {
 
 		EMSCRIPTEN_RESULT result = emscripten_request_pointerlock("canvas", false);
-		ERR_EXPLAIN("MOUSE_MODE_CAPTURED can only be entered from within an appropriate input callback");
-		ERR_FAIL_COND(result == EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED);
-		ERR_FAIL_COND(result != EMSCRIPTEN_RESULT_SUCCESS);
+		ERR_FAIL_COND_MSG(result == EMSCRIPTEN_RESULT_FAILED_NOT_DEFERRED, "MOUSE_MODE_CAPTURED can only be entered from within an appropriate input callback.");
+		ERR_FAIL_COND_MSG(result != EMSCRIPTEN_RESULT_SUCCESS, "MOUSE_MODE_CAPTURED can only be entered from within an appropriate input callback.");
 		// set_css_cursor must be called before set_cursor_shape to make the cursor visible
 		set_css_cursor(godot2dom_cursor(cursor_shape));
 		set_cursor_shape(cursor_shape);
@@ -810,8 +807,7 @@ const char *OS_JavaScript::get_video_driver_name(int p_driver) const {
 		case VIDEO_DRIVER_GLES2:
 			return "GLES2";
 	}
-	ERR_EXPLAIN("Invalid video driver index " + itos(p_driver));
-	ERR_FAIL_V(NULL);
+	ERR_FAIL_V_MSG(NULL, "Invalid video driver index: " + itos(p_driver) + ".");
 }
 
 // Audio
@@ -846,8 +842,7 @@ void OS_JavaScript::set_clipboard(const String &p_text) {
 		return 0;
 	}, p_text.utf8().get_data());
 	/* clang-format on */
-	ERR_EXPLAIN("Clipboard API is not supported.");
-	ERR_FAIL_COND(err);
+	ERR_FAIL_COND_MSG(err, "Clipboard API is not supported.");
 }
 
 String OS_JavaScript::get_clipboard() const {
@@ -1117,20 +1112,17 @@ void OS_JavaScript::finalize() {
 
 Error OS_JavaScript::execute(const String &p_path, const List<String> &p_arguments, bool p_blocking, ProcessID *r_child_id, String *r_pipe, int *r_exitcode, bool read_stderr, Mutex *p_pipe_mutex) {
 
-	ERR_EXPLAIN("OS::execute() is not available on the HTML5 platform");
-	ERR_FAIL_V(ERR_UNAVAILABLE);
+	ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "OS::execute() is not available on the HTML5 platform.");
 }
 
 Error OS_JavaScript::kill(const ProcessID &p_pid) {
 
-	ERR_EXPLAIN("OS::kill() is not available on the HTML5 platform");
-	ERR_FAIL_V(ERR_UNAVAILABLE);
+	ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "OS::kill() is not available on the HTML5 platform.");
 }
 
 int OS_JavaScript::get_process_id() const {
 
-	ERR_EXPLAIN("OS::get_process_id() is not available on the HTML5 platform");
-	ERR_FAIL_V(0);
+	ERR_FAIL_V_MSG(0, "OS::get_process_id() is not available on the HTML5 platform.");
 }
 
 extern "C" EMSCRIPTEN_KEEPALIVE void send_notification(int p_notification) {
diff --git a/platform/osx/os_osx.mm b/platform/osx/os_osx.mm
index a48f784529..ab77897b08 100644
--- a/platform/osx/os_osx.mm
+++ b/platform/osx/os_osx.mm
@@ -1719,10 +1719,7 @@ Error OS_OSX::open_dynamic_library(const String p_path, void *&p_library_handle,
 	}
 
 	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
-	if (!p_library_handle) {
-		ERR_EXPLAIN("Can't open dynamic library: " + p_path + ". Error: " + dlerror());
-		ERR_FAIL_V(ERR_CANT_OPEN);
-	}
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ", error: " + dlerror() + ".");
 	return OK;
 }
 
@@ -1962,15 +1959,10 @@ void OS_OSX::set_native_icon(const String &p_filename) {
 	memdelete(f);
 
 	NSData *icon_data = [[[NSData alloc] initWithBytes:&data.write[0] length:len] autorelease];
-	if (!icon_data) {
-		ERR_EXPLAIN("Error reading icon data");
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND_MSG(!icon_data, "Error reading icon data.");
+
 	NSImage *icon = [[[NSImage alloc] initWithData:icon_data] autorelease];
-	if (!icon) {
-		ERR_EXPLAIN("Error loading icon");
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND_MSG(!icon, "Error loading icon.");
 
 	[NSApp setApplicationIconImage:icon];
 }
diff --git a/platform/uwp/export/export.cpp b/platform/uwp/export/export.cpp
index 75ce422e9e..024e7f1916 100644
--- a/platform/uwp/export/export.cpp
+++ b/platform/uwp/export/export.cpp
@@ -901,8 +901,7 @@ class EditorExportPlatformUWP : public EditorExportPlatform {
 			String err_string = "Couldn't save temp logo file.";
 
 			EditorNode::add_io_error(err_string);
-			ERR_EXPLAIN(err_string);
-			ERR_FAIL_V(data);
+			ERR_FAIL_V_MSG(data, err_string);
 		}
 
 		FileAccess *f = FileAccess::open(tmp_path, FileAccess::READ, &err);
@@ -912,8 +911,7 @@ class EditorExportPlatformUWP : public EditorExportPlatform {
 			String err_string = "Couldn't open temp logo file.";
 
 			EditorNode::add_io_error(err_string);
-			ERR_EXPLAIN(err_string);
-			ERR_FAIL_V(data);
+			ERR_FAIL_V_MSG(data, err_string);
 		}
 
 		data.resize(f->get_len());
@@ -930,8 +928,7 @@ class EditorExportPlatformUWP : public EditorExportPlatform {
 			String err_string = "Couldn't open temp path to remove temp logo file.";
 
 			EditorNode::add_io_error(err_string);
-			ERR_EXPLAIN(err_string);
-			ERR_FAIL_V(data);
+			ERR_FAIL_V_MSG(data, err_string);
 		}
 
 		err = dir->remove(tmp_path);
@@ -943,8 +940,7 @@ class EditorExportPlatformUWP : public EditorExportPlatform {
 			String err_string = "Couldn't remove temp logo file.";
 
 			EditorNode::add_io_error(err_string);
-			ERR_EXPLAIN(err_string);
-			ERR_FAIL_V(data);
+			ERR_FAIL_V_MSG(data, err_string);
 		}
 
 		return data;
diff --git a/platform/uwp/os_uwp.cpp b/platform/uwp/os_uwp.cpp
index 9d9be44ce5..60f2290355 100644
--- a/platform/uwp/os_uwp.cpp
+++ b/platform/uwp/os_uwp.cpp
@@ -835,11 +835,7 @@ Error OS_UWP::open_dynamic_library(const String p_path, void *&p_library_handle,
 
 	String full_path = "game/" + p_path;
 	p_library_handle = (void *)LoadPackagedLibrary(full_path.c_str(), 0);
-
-	if (!p_library_handle) {
-		ERR_EXPLAIN("Can't open dynamic library: " + full_path + ". Error: " + format_error_message(GetLastError()));
-		ERR_FAIL_V(ERR_CANT_OPEN);
-	}
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + full_path + ", error: " + format_error_message(GetLastError()) + ".");
 	return OK;
 }
 
@@ -854,8 +850,7 @@ Error OS_UWP::get_dynamic_library_symbol_handle(void *p_library_handle, const St
 	p_symbol_handle = (void *)GetProcAddress((HMODULE)p_library_handle, p_name.utf8().get_data());
 	if (!p_symbol_handle) {
 		if (!p_optional) {
-			ERR_EXPLAIN("Can't resolve symbol " + p_name + ". Error: " + String::num(GetLastError()));
-			ERR_FAIL_V(ERR_CANT_RESOLVE);
+			ERR_FAIL_V_MSG(ERR_CANT_RESOLVE, "Can't resolve symbol " + p_name + ", error: " + String::num(GetLastError()) + ".");
 		} else {
 			return ERR_CANT_RESOLVE;
 		}
diff --git a/platform/windows/os_windows.cpp b/platform/windows/os_windows.cpp
index db4575a0cb..a6ce9148f0 100644
--- a/platform/windows/os_windows.cpp
+++ b/platform/windows/os_windows.cpp
@@ -1435,16 +1435,13 @@ void OS_Windows::set_clipboard(const String &p_text) {
 	String text = p_text.replace("\n", "\r\n");
 
 	if (!OpenClipboard(hWnd)) {
-		ERR_EXPLAIN("Unable to open clipboard.");
-		ERR_FAIL();
-	};
+		ERR_FAIL_MSG("Unable to open clipboard.");
+	}
 	EmptyClipboard();
 
 	HGLOBAL mem = GlobalAlloc(GMEM_MOVEABLE, (text.length() + 1) * sizeof(CharType));
-	if (mem == NULL) {
-		ERR_EXPLAIN("Unable to allocate memory for clipboard contents.");
-		ERR_FAIL();
-	};
+	ERR_FAIL_COND_MSG(mem == NULL, "Unable to allocate memory for clipboard contents.");
+
 	LPWSTR lptstrCopy = (LPWSTR)GlobalLock(mem);
 	memcpy(lptstrCopy, text.c_str(), (text.length() + 1) * sizeof(CharType));
 	GlobalUnlock(mem);
@@ -1454,10 +1451,8 @@ void OS_Windows::set_clipboard(const String &p_text) {
 	// set the CF_TEXT version (not needed?)
 	CharString utf8 = text.utf8();
 	mem = GlobalAlloc(GMEM_MOVEABLE, utf8.length() + 1);
-	if (mem == NULL) {
-		ERR_EXPLAIN("Unable to allocate memory for clipboard contents.");
-		ERR_FAIL();
-	};
+	ERR_FAIL_COND_MSG(mem == NULL, "Unable to allocate memory for clipboard contents.");
+
 	LPTSTR ptr = (LPTSTR)GlobalLock(mem);
 	memcpy(ptr, utf8.get_data(), utf8.length());
 	ptr[utf8.length()] = 0;
@@ -1472,8 +1467,7 @@ String OS_Windows::get_clipboard() const {
 
 	String ret;
 	if (!OpenClipboard(hWnd)) {
-		ERR_EXPLAIN("Unable to open clipboard.");
-		ERR_FAIL_V("");
+		ERR_FAIL_V_MSG("", "Unable to open clipboard.");
 	};
 
 	if (IsClipboardFormatAvailable(CF_UNICODETEXT)) {
@@ -2135,15 +2129,12 @@ Error OS_Windows::open_dynamic_library(const String p_path, void *&p_library_han
 	}
 
 	p_library_handle = (void *)LoadLibraryExW(path.c_str(), NULL, (p_also_set_library_path && has_dll_directory_api) ? LOAD_LIBRARY_SEARCH_DEFAULT_DIRS : 0);
+	ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ", error: " + format_error_message(GetLastError()) + ".");
 
 	if (cookie) {
 		remove_dll_directory(cookie);
 	}
 
-	if (!p_library_handle) {
-		ERR_EXPLAIN("Can't open dynamic library: " + p_path + ". Error: " + format_error_message(GetLastError()));
-		ERR_FAIL_V(ERR_CANT_OPEN);
-	}
 	return OK;
 }
 
@@ -2158,8 +2149,7 @@ Error OS_Windows::get_dynamic_library_symbol_handle(void *p_library_handle, cons
 	p_symbol_handle = (void *)GetProcAddress((HMODULE)p_library_handle, p_name.utf8().get_data());
 	if (!p_symbol_handle) {
 		if (!p_optional) {
-			ERR_EXPLAIN("Can't resolve symbol " + p_name + ". Error: " + String::num(GetLastError()));
-			ERR_FAIL_V(ERR_CANT_RESOLVE);
+			ERR_FAIL_V_MSG(ERR_CANT_RESOLVE, "Can't resolve symbol " + p_name + ", error: " + String::num(GetLastError()) + ".");
 		} else {
 			return ERR_CANT_RESOLVE;
 		}
@@ -2686,10 +2676,7 @@ void OS_Windows::set_native_icon(const String &p_filename) {
 	pos += sizeof(WORD);
 	f->seek(pos);
 
-	if (icon_dir->idType != 1) {
-		ERR_EXPLAIN("Invalid icon file format!");
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND_MSG(icon_dir->idType != 1, "Invalid icon file format!");
 
 	icon_dir->idCount = f->get_32();
 	pos += sizeof(WORD);
@@ -2722,10 +2709,7 @@ void OS_Windows::set_native_icon(const String &p_filename) {
 		}
 	}
 
-	if (big_icon_index == -1) {
-		ERR_EXPLAIN("No valid icons found!");
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND_MSG(big_icon_index == -1, "No valid icons found!");
 
 	if (small_icon_index == -1) {
 		WARN_PRINTS("No small icon found, reusing " + itos(big_icon_width) + "x" + itos(big_icon_width) + " @" + itos(big_icon_cc) + " icon!");
@@ -2741,10 +2725,7 @@ void OS_Windows::set_native_icon(const String &p_filename) {
 	f->seek(pos);
 	f->get_buffer((uint8_t *)&data_big.write[0], bytecount_big);
 	HICON icon_big = CreateIconFromResource((PBYTE)&data_big.write[0], bytecount_big, TRUE, 0x00030000);
-	if (!icon_big) {
-		ERR_EXPLAIN("Could not create " + itos(big_icon_width) + "x" + itos(big_icon_width) + " @" + itos(big_icon_cc) + " icon, error: " + format_error_message(GetLastError()));
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND_MSG(!icon_big, "Could not create " + itos(big_icon_width) + "x" + itos(big_icon_width) + " @" + itos(big_icon_cc) + " icon, error: " + format_error_message(GetLastError()) + ".");
 
 	// Read the small icon
 	DWORD bytecount_small = icon_dir->idEntries[small_icon_index].dwBytesInRes;
@@ -2754,10 +2735,7 @@ void OS_Windows::set_native_icon(const String &p_filename) {
 	f->seek(pos);
 	f->get_buffer((uint8_t *)&data_small.write[0], bytecount_small);
 	HICON icon_small = CreateIconFromResource((PBYTE)&data_small.write[0], bytecount_small, TRUE, 0x00030000);
-	if (!icon_small) {
-		ERR_EXPLAIN("Could not create 16x16 @" + itos(small_icon_cc) + " icon, error: " + format_error_message(GetLastError()));
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND_MSG(!icon_small, "Could not create 16x16 @" + itos(small_icon_cc) + " icon, error: " + format_error_message(GetLastError()) + ".");
 
 	// Online tradition says to be sure last error is cleared and set the small icon first
 	int err = 0;
@@ -2765,17 +2743,11 @@ void OS_Windows::set_native_icon(const String &p_filename) {
 
 	SendMessage(hWnd, WM_SETICON, ICON_SMALL, (LPARAM)icon_small);
 	err = GetLastError();
-	if (err) {
-		ERR_EXPLAIN("Error setting ICON_SMALL: " + format_error_message(err));
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND(err, "Error setting ICON_SMALL: " + format_error_message(err) + ".");
 
 	SendMessage(hWnd, WM_SETICON, ICON_BIG, (LPARAM)icon_big);
 	err = GetLastError();
-	if (err) {
-		ERR_EXPLAIN("Error setting ICON_BIG: " + format_error_message(err));
-		ERR_FAIL();
-	}
+	ERR_FAIL_COND(err, "Error setting ICON_BIG: " + format_error_message(err) + ".");
 
 	memdelete(f);
 	memdelete(icon_dir);
diff --git a/platform/x11/export/export.cpp b/platform/x11/export/export.cpp
index 8767aac517..6e66173463 100644
--- a/platform/x11/export/export.cpp
+++ b/platform/x11/export/export.cpp
@@ -85,8 +85,7 @@ static Error fixup_embedded_pck(const String &p_path, int64_t p_embedded_start,
 
 	if (bits == 32 && p_embedded_size >= 0x100000000) {
 		f->close();
-		ERR_EXPLAIN("32-bit executables cannot have embedded data >= 4 GiB");
-		ERR_FAIL_V(ERR_INVALID_DATA);
+		ERR_FAIL_V_MSG(ERR_INVALID_DATA, "32-bit executables cannot have embedded data >= 4 GiB.");
 	}
 
 	// Get info about the section header table