Squashed 'third_party/flatbuffers/' content from commit acc9990ab

Change-Id: I48550d40d78fea996ebe74e9723a5d1f910de491
git-subtree-dir: third_party/flatbuffers
git-subtree-split: acc9990abd2206491480291b0f85f925110102ea
diff --git a/samples/android/AndroidManifest.xml b/samples/android/AndroidManifest.xml
new file mode 100644
index 0000000..352e0fa
--- /dev/null
+++ b/samples/android/AndroidManifest.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2015 Google, Inc.
+
+     This software is provided 'as-is', without any express or implied
+     warranty.  In no event will the authors be held liable for any damages
+     arising from the use of this software.
+     Permission is granted to anyone to use this software for any purpose,
+     including commercial applications, and to alter it and redistribute it
+     freely, subject to the following restrictions:
+     1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+     2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+     3. This notice may not be removed or altered from any source distribution.
+ -->
+<!-- BEGIN_INCLUDE(manifest) -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.samples.FlatBufferSample">
+
+    <uses-feature android:glEsVersion="0x00020000"></uses-feature>
+
+    <!-- This .apk has no Java code itself, so set hasCode to false. -->
+    <application android:label="@string/app_name"
+                 android:hasCode="false"
+                 android:allowBackup="false">
+        <!-- Our activity is the built-in NativeActivity framework class.
+             This will take care of integrating with our NDK code. -->
+        <activity android:name="android.app.NativeActivity"
+                android:label="@string/app_name"
+                android:configChanges="orientation|keyboardHidden"
+                android:screenOrientation="landscape">
+            <!-- Tell NativeActivity the name of or .so -->
+            <meta-data android:name="android.app.lib_name"
+                    android:value="FlatBufferSample" />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
+<!-- END_INCLUDE(manifest) -->
diff --git a/samples/android/build.gradle b/samples/android/build.gradle
new file mode 100644
index 0000000..81c1af0
--- /dev/null
+++ b/samples/android/build.gradle
@@ -0,0 +1,108 @@
+// Copyright (c) 2017 Google, Inc.
+//
+// This software is provided 'as-is', without any express or implied
+// warranty.  In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would be
+// appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+// misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+buildscript {
+  repositories {
+    jcenter()
+  }
+  dependencies {
+    classpath 'com.android.tools.build:gradle:2.3.0'
+  }
+}
+
+allprojects {
+  repositories {
+    jcenter()
+  }
+}
+
+apply plugin: 'com.android.application'
+
+android {
+  compileSdkVersion 25
+  buildToolsVersion '25.0.2'
+
+  sourceSets {
+    main {
+      manifest.srcFile 'AndroidManifest.xml'
+      res.srcDirs = ['res']
+    }
+  }
+
+  externalNativeBuild {
+    ndkBuild {
+      path "jni/Android.mk"
+    }
+  }
+
+  defaultConfig {
+    applicationId 'com.samples.FlatBufferSample'
+    // This is the platform API where NativeActivity was introduced.
+    minSdkVersion 9
+    targetSdkVersion 25
+    versionCode 1
+    versionName "1.0"
+
+    buildTypes {
+      release {
+        minifyEnabled false
+      }
+    }
+
+    externalNativeBuild {
+      ndkBuild {
+        targets "FlatBufferSample"
+        arguments "-j" + Runtime.getRuntime().availableProcessors()
+        abiFilters "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
+      }
+    }
+  }
+
+  lintOptions {
+    abortOnError false
+  }
+
+  // Build with each STL variant.
+  productFlavors {
+    stlport {
+      applicationIdSuffix ".stlport"
+      versionNameSuffix "-stlport"
+      externalNativeBuild {
+        ndkBuild {
+          arguments "APP_STL=stlport_static"
+        }
+      }
+    }
+    gnustl {
+      applicationIdSuffix ".gnustl"
+      versionNameSuffix "-gnustl"
+      externalNativeBuild {
+        ndkBuild {
+          arguments "APP_STL=gnustl_static"
+        }
+      }
+    }
+    libcpp {
+      applicationIdSuffix ".libcpp"
+      versionNameSuffix "-libcpp"
+      externalNativeBuild {
+        ndkBuild {
+          arguments "APP_STL=c++_static"
+        }
+      }
+    }
+  }
+}
diff --git a/samples/android/gradle/wrapper/gradle-wrapper.jar b/samples/android/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..b4163b8
--- /dev/null
+++ b/samples/android/gradle/wrapper/gradle-wrapper.jar
Binary files differ
diff --git a/samples/android/gradle/wrapper/gradle-wrapper.properties b/samples/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..1e1168c
--- /dev/null
+++ b/samples/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Jun 19 11:54:59 PDT 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-all.zip
diff --git a/samples/android/gradlew b/samples/android/gradlew
new file mode 100755
index 0000000..cccdd3d
--- /dev/null
+++ b/samples/android/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/samples/android/gradlew.bat b/samples/android/gradlew.bat
new file mode 100644
index 0000000..f955316
--- /dev/null
+++ b/samples/android/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/samples/android/jni/Android.mk b/samples/android/jni/Android.mk
new file mode 100644
index 0000000..917c2f9
--- /dev/null
+++ b/samples/android/jni/Android.mk
@@ -0,0 +1,56 @@
+# Copyright (c) 2013 Google, Inc.
+#
+# This software is provided 'as-is', without any express or implied
+# warranty.  In no event will the authors be held liable for any damages
+# arising from the use of this software.
+# Permission is granted to anyone to use this software for any purpose,
+# including commercial applications, and to alter it and redistribute it
+# freely, subject to the following restrictions:
+# 1. The origin of this software must not be misrepresented; you must not
+# claim that you wrote the original software. If you use this software
+# in a product, an acknowledgment in the product documentation would be
+# appreciated but is not required.
+# 2. Altered source versions must be plainly marked as such, and must not be
+# misrepresented as being the original software.
+# 3. This notice may not be removed or altered from any source distribution.
+
+LOCAL_PATH := $(call my-dir)
+FLATBUFFERS_ROOT_DIR := $(LOCAL_PATH)/../../..
+
+# FlatBuffers test
+include $(CLEAR_VARS)
+
+# Include the FlatBuffer utility function to generate header files from schemas.
+include $(FLATBUFFERS_ROOT_DIR)/android/jni/include.mk
+
+LOCAL_MODULE := FlatBufferSample
+
+# Set up some useful variables to identify schema and output directories and
+# schema files.
+ANDROID_SAMPLE_GENERATED_OUTPUT_DIR := $(LOCAL_PATH)/gen/include
+ANDROID_SAMPLE_SCHEMA_DIR := $(LOCAL_PATH)/schemas
+ANDROID_SAMPLE_SCHEMA_FILES := $(ANDROID_SAMPLE_SCHEMA_DIR)/animal.fbs
+
+LOCAL_C_INCLUDES := $(ANDROID_SAMPLE_GENERATED_OUTPUT_DIR)
+
+$(info $(LOCAL_C_INCLUDES))
+
+LOCAL_SRC_FILES := main.cpp
+
+LOCAL_CPPFLAGS := -std=c++11 -fexceptions -Wall -Wno-literal-suffix
+LOCAL_LDLIBS := -llog -landroid -latomic
+LOCAL_ARM_MODE := arm
+LOCAL_STATIC_LIBRARIES := android_native_app_glue flatbuffers
+
+ifeq (,$(ANDROID_SAMPLE_RUN_ONCE))
+ANDROID_SAMPLE_RUN_ONCE := 1
+$(call flatbuffers_header_build_rules,$(ANDROID_SAMPLE_SCHEMA_FILES),$(ANDROID_SAMPLE_SCHEMA_DIR),$(ANDROID_SAMPLE_GENERATED_OUTPUT_DIR),,$(LOCAL_SRC_FILES))
+endif
+
+include $(BUILD_SHARED_LIBRARY)
+
+# Path to Flatbuffers root directory.
+$(call import-add-path,$(FLATBUFFERS_ROOT_DIR)/..)
+
+$(call import-module,flatbuffers/android/jni)
+$(call import-module,android/native_app_glue)
diff --git a/samples/android/jni/Application.mk b/samples/android/jni/Application.mk
new file mode 100644
index 0000000..ca9e800
--- /dev/null
+++ b/samples/android/jni/Application.mk
@@ -0,0 +1,20 @@
+# Copyright (c) 2014 Google, Inc.
+#
+# This software is provided 'as-is', without any express or implied
+# warranty.  In no event will the authors be held liable for any damages
+# arising from the use of this software.
+# Permission is granted to anyone to use this software for any purpose,
+# including commercial applications, and to alter it and redistribute it
+# freely, subject to the following restrictions:
+# 1. The origin of this software must not be misrepresented; you must not
+# claim that you wrote the original software. If you use this software
+# in a product, an acknowledgment in the product documentation would be
+# appreciated but is not required.
+# 2. Altered source versions must be plainly marked as such, and must not be
+# misrepresented as being the original software.
+# 3. This notice may not be removed or altered from any source distribution.
+APP_PLATFORM := android-9
+APP_PROJECT_PATH := $(call my-dir)/..
+APP_STL ?= stlport_static
+APP_ABI := armeabi-v7a
+APP_CPPFLAGS += -std=c++11
diff --git a/samples/android/jni/main.cpp b/samples/android/jni/main.cpp
new file mode 100644
index 0000000..8758027
--- /dev/null
+++ b/samples/android/jni/main.cpp
@@ -0,0 +1,43 @@
+// Copyright 2015 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <android/log.h>
+
+#include "android_native_app_glue.h"
+#include "animal_generated.h" // Includes "flatbuffers/flatbuffers.h".
+
+void android_main(android_app *app) {
+  app_dummy();
+
+  flatbuffers::FlatBufferBuilder builder;
+  auto name = builder.CreateString("Dog");
+  auto sound = builder.CreateString("Bark");
+  auto animal_buffer = sample::CreateAnimal(builder, name, sound);
+  builder.Finish(animal_buffer);
+
+  // We now have a FlatBuffer that can be stored on disk or sent over a network.
+
+  // ...Code to store on disk or send over a network goes here...
+
+  // Instead, we're going to access it immediately, as if we just recieved this.
+
+  auto animal = sample::GetAnimal(builder.GetBufferPointer());
+
+  assert(animal->name()->str() == "Dog");
+  assert(animal->sound()->str() == "Bark");
+  (void)animal; // To silence "Unused Variable" warnings.
+
+  __android_log_print(ANDROID_LOG_INFO, "FlatBufferSample",
+      "FlatBuffer successfully created and verified.");
+}
diff --git a/samples/android/jni/schemas/animal.fbs b/samples/android/jni/schemas/animal.fbs
new file mode 100644
index 0000000..d1bd38d
--- /dev/null
+++ b/samples/android/jni/schemas/animal.fbs
@@ -0,0 +1,22 @@
+// Copyright 2015 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace sample;
+
+table Animal {
+  name:string;
+  sound:string;
+}
+
+root_type Animal;
diff --git a/samples/android/res/values/strings.xml b/samples/android/res/values/strings.xml
new file mode 100644
index 0000000..57ddaf4
--- /dev/null
+++ b/samples/android/res/values/strings.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2015 Google, Inc.
+
+     This software is provided 'as-is', without any express or implied
+     warranty.  In no event will the authors be held liable for any damages
+     arising from the use of this software.
+     Permission is granted to anyone to use this software for any purpose,
+     including commercial applications, and to alter it and redistribute it
+     freely, subject to the following restrictions:
+     1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+     2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+     3. This notice may not be removed or altered from any source distribution.
+ -->
+<resources>
+    <string name="app_name">FlatBufferSample</string>
+</resources>