diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..097f9f9
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,9 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat text eol=crlf
+
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..7f42502
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,29 @@
+name: test
+on: [pull_request, push]
+
+jobs:
+ build:
+ strategy:
+ matrix:
+ # Use these Java versions
+ java: [
+ 17, # Current Java LTS & minimum supported by Minecraft
+ ]
+ os: [ubuntu-latest]
+ runs-on: ${{ matrix.os }}
+ steps:
+ - name: checkout repository
+ uses: actions/checkout@v3
+ - name: validate gradle wrapper
+ uses: gradle/wrapper-validation-action@v1
+ - name: setup jdk ${{ matrix.java }}
+ uses: actions/setup-java@v3
+ with:
+ java-version: ${{ matrix.java }}
+ distribution: 'temurin'
+ - name: make gradle wrapper executable
+ run: chmod +x ./gradlew
+ - name: test
+ run: ./gradlew test
+ - name: check spotless formatting
+ run: ./gradlew spotlessCheck
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1b6985c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000..a55e7a1
--- /dev/null
+++ b/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..b589d56
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/discord.xml b/.idea/discord.xml
new file mode 100644
index 0000000..d8e9561
--- /dev/null
+++ b/.idea/discord.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/google-java-format.xml b/.idea/google-java-format.xml
new file mode 100644
index 0000000..8b57f45
--- /dev/null
+++ b/.idea/google-java-format.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
new file mode 100644
index 0000000..2c48b5c
--- /dev/null
+++ b/.idea/gradle.xml
@@ -0,0 +1,17 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
new file mode 100644
index 0000000..fdc392f
--- /dev/null
+++ b/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/ktfmt.xml b/.idea/ktfmt.xml
new file mode 100644
index 0000000..f0d6dab
--- /dev/null
+++ b/.idea/ktfmt.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..88fa1a6
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules/doodads.iml b/.idea/modules/doodads.iml
new file mode 100644
index 0000000..78c7f9e
--- /dev/null
+++ b/.idea/modules/doodads.iml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules/lib/doodads.lib.iml b/.idea/modules/lib/doodads.lib.iml
new file mode 100644
index 0000000..b17ade5
--- /dev/null
+++ b/.idea/modules/lib/doodads.lib.iml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules/lib/doodads.lib.main.iml b/.idea/modules/lib/doodads.lib.main.iml
new file mode 100644
index 0000000..3485347
--- /dev/null
+++ b/.idea/modules/lib/doodads.lib.main.iml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules/lib/doodads.lib.test.iml b/.idea/modules/lib/doodads.lib.test.iml
new file mode 100644
index 0000000..79455c5
--- /dev/null
+++ b/.idea/modules/lib/doodads.lib.test.iml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/palantir-java-format.xml b/.idea/palantir-java-format.xml
new file mode 100644
index 0000000..3815718
--- /dev/null
+++ b/.idea/palantir-java-format.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/uiDesigner.xml b/.idea/uiDesigner.xml
new file mode 100644
index 0000000..2b63946
--- /dev/null
+++ b/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+
+
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+
+
+
+ -
+
+
+
+
+
+ -
+
+
+
+
+
+ -
+
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+
+
+ -
+
+
+ -
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..7f93135
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..ac72c34
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..0adc8e1
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,249 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# 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
+#
+# https://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.
+#
+
+##############################################################################
+#
+# Gradle start up script for POSIX generated by Gradle.
+#
+# Important for running:
+#
+# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+# noncompliant, but you have some other compliant shell such as ksh or
+# bash, then to run this script, type that shell name before the whole
+# command line, like:
+#
+# ksh Gradle
+#
+# Busybox and similar reduced shells will NOT work, because this script
+# requires all of these POSIX shell features:
+# * functions;
+# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+# * compound commands having a testable exit status, especially «case»;
+# * various built-in commands including «command», «set», and «ulimit».
+#
+# Important for patching:
+#
+# (2) This script targets any POSIX shell, so it avoids extensions provided
+# by Bash, Ksh, etc; in particular arrays are avoided.
+#
+# The "traditional" practice of packing multiple parameters into a
+# space-separated string is a well documented source of bugs and security
+# problems, so this is (mostly) avoided, by progressively accumulating
+# options in "$@", and eventually passing that to Java.
+#
+# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+# see the in-line comments for details.
+#
+# There are tweaks for specific operating systems such as AIX, CygWin,
+# Darwin, MinGW, and NonStop.
+#
+# (3) This script is generated from the Groovy template
+# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+# within the Gradle project.
+#
+# You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+ APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
+ [ -h "$app_path" ]
+do
+ ls=$( ls -ld "$app_path" )
+ link=${ls#*' -> '}
+ case $link in #(
+ /*) app_path=$link ;; #(
+ *) app_path=$APP_HOME$link ;;
+ esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+ echo "$*"
+} >&2
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in #(
+ CYGWIN* ) cygwin=true ;; #(
+ Darwin* ) darwin=true ;; #(
+ MSYS* | 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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD=java
+ if ! command -v java >/dev/null 2>&1
+ then
+ die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+ case $MAX_FD in #(
+ max*)
+ # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC3045
+ MAX_FD=$( ulimit -H -n ) ||
+ warn "Could not query maximum file descriptor limit"
+ esac
+ case $MAX_FD in #(
+ '' | soft) :;; #(
+ *)
+ # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+ # shellcheck disable=SC3045
+ ulimit -n "$MAX_FD" ||
+ warn "Could not set maximum file descriptor limit to $MAX_FD"
+ esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+# * args from the command line
+# * the main class name
+# * -classpath
+# * -D...appname settings
+# * --module-path (only if needed)
+# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+ APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+ CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+ JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ for arg do
+ if
+ case $arg in #(
+ -*) false ;; # don't mess with options #(
+ /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
+ [ -e "$t" ] ;; #(
+ *) false ;;
+ esac
+ then
+ arg=$( cygpath --path --ignore --mixed "$arg" )
+ fi
+ # Roll the args list around exactly as many times as the number of
+ # args, so each arg winds up back in the position where it started, but
+ # possibly modified.
+ #
+ # NB: a `for` loop captures its iteration list before it begins, so
+ # changing the positional parameters here affects neither the number of
+ # iterations, nor the values presented in `arg`.
+ shift # remove old arg
+ set -- "$@" "$arg" # push replacement arg
+ done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+# shell script including quotes and variable substitutions, so put them in
+# double quotes to make sure that they get re-expanded; and
+# * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+ "-Dorg.gradle.appname=$APP_BASE_NAME" \
+ -classpath "$CLASSPATH" \
+ org.gradle.wrapper.GradleWrapperMain \
+ "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+ die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+# set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+ printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+ xargs -n1 |
+ sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+ tr '\n' ' '
+ )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..93e3f59
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@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=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@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="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+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 execute
+
+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
+
+: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 %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 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!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/lib/build.gradle.kts b/lib/build.gradle.kts
new file mode 100644
index 0000000..b806845
--- /dev/null
+++ b/lib/build.gradle.kts
@@ -0,0 +1,31 @@
+plugins {
+ `java-library`
+ id("com.diffplug.spotless") version "6.21.0"
+}
+
+repositories {
+ mavenCentral()
+}
+
+dependencies {
+ testImplementation(group = "org.junit.jupiter", name = "junit-jupiter", version = "5.10.0")
+ testRuntimeOnly(group = "org.junit.platform", name = "junit-platform-launcher")
+ compileOnly(group = "jakarta.annotation", name = "jakarta.annotation-api", version = "2.1.1")
+}
+
+tasks.test {
+ useJUnitPlatform()
+}
+
+spotless {
+ java {
+ palantirJavaFormat()
+ formatAnnotations()
+ }
+}
+
+java {
+ toolchain {
+ languageVersion = JavaLanguageVersion.of(17)
+ }
+}
diff --git a/lib/src/main/java/io/github/justfoxx/doodads/Option.java b/lib/src/main/java/io/github/justfoxx/doodads/Option.java
new file mode 100644
index 0000000..35781af
--- /dev/null
+++ b/lib/src/main/java/io/github/justfoxx/doodads/Option.java
@@ -0,0 +1,213 @@
+package io.github.justfoxx.doodads;
+
+import jakarta.annotation.Nullable;
+import java.util.NoSuchElementException;
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.function.Supplier;
+import java.util.stream.Stream;
+
+public sealed interface Option {
+ static Option.Some some(TValue value) {
+ return new Some<>(value);
+ }
+
+ @SuppressWarnings("unchecked")
+ static Option.None none() {
+ return (Option.None) None.INSTANCE;
+ }
+
+ static Option from(@Nullable TValue value) {
+ return value == null ? none() : some(value);
+ }
+
+ boolean isSome();
+
+ default boolean isNone() {
+ return !isSome();
+ }
+
+ TValue getOrDefault(TValue value);
+
+ TValue getOrThrow() throws NoSuchElementException;
+
+ TValue getOrThrow(Supplier extends X> exceptionSupplier) throws X;
+
+ void ifPresent(Consumer consumer);
+
+ void ifPresentOrElse(Consumer consumer, Runnable runnable);
+
+ Type getType();
+
+ Option filter(Predicate predicate);
+
+ Option map(Function mapper);
+
+ Option flatMap(Function> mapper);
+
+ Option or(Supplier> other);
+
+ Stream stream();
+
+ enum Type {
+ SOME,
+ NONE
+ }
+
+ final class Some implements Option {
+ private final TValue value;
+
+ private Some(TValue value) {
+ this.value = value;
+ }
+
+ public TValue get() {
+ return value;
+ }
+
+ @Override
+ public boolean isSome() {
+ return true;
+ }
+
+ @Override
+ public TValue getOrDefault(TValue value) {
+ return get();
+ }
+
+ @Override
+ public TValue getOrThrow() {
+ return get();
+ }
+
+ @Override
+ public TValue getOrThrow(Supplier extends X> exceptionSupplier) {
+ return get();
+ }
+
+ @Override
+ public void ifPresent(Consumer consumer) {
+ consumer.accept(get());
+ }
+
+ @Override
+ public void ifPresentOrElse(Consumer consumer, Runnable runnable) {
+ consumer.accept(get());
+ }
+
+ @Override
+ public Type getType() {
+ return Type.SOME;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return obj instanceof Some> some && value.equals(some.value);
+ }
+
+ @Override
+ public String toString() {
+ return String.format("Option.Some(%s)", value);
+ }
+
+ @Override
+ public Option filter(Predicate predicate) {
+ return predicate.test(value) ? this : none();
+ }
+
+ @Override
+ public Option map(Function mapper) {
+ return some(mapper.apply(value));
+ }
+
+ @Override
+ public Option flatMap(Function> mapper) {
+ return mapper.apply(value);
+ }
+
+ @Override
+ public Option or(Supplier> other) {
+ return this;
+ }
+
+ @Override
+ public Stream stream() {
+ return Stream.of(value);
+ }
+ }
+
+ final class None implements Option {
+ private static final None> INSTANCE = new None<>();
+
+ private None() {}
+
+ @Override
+ public boolean isSome() {
+ return false;
+ }
+
+ @Override
+ public TValue getOrDefault(TValue value) {
+ return value;
+ }
+
+ @Override
+ public TValue getOrThrow() throws NoSuchElementException {
+ throw new NoSuchElementException("No value present");
+ }
+
+ @Override
+ public TValue getOrThrow(Supplier extends X> exceptionSupplier) throws X {
+ throw exceptionSupplier.get();
+ }
+
+ @Override
+ public void ifPresent(Consumer consumer) {}
+
+ @Override
+ public void ifPresentOrElse(Consumer consumer, Runnable runnable) {
+ runnable.run();
+ }
+
+ @Override
+ public Type getType() {
+ return Type.NONE;
+ }
+
+ @Override
+ public Option filter(Predicate predicate) {
+ return this;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return obj instanceof None;
+ }
+
+ @Override
+ public String toString() {
+ return "Option.None";
+ }
+
+ @Override
+ public Option map(Function mapper) {
+ return none();
+ }
+
+ @Override
+ public Option flatMap(Function> mapper) {
+ return none();
+ }
+
+ @Override
+ public Option or(Supplier> other) {
+ return other.get();
+ }
+
+ @Override
+ public Stream stream() {
+ return Stream.empty();
+ }
+ }
+}
diff --git a/lib/src/main/java/io/github/justfoxx/doodads/package-info.java b/lib/src/main/java/io/github/justfoxx/doodads/package-info.java
new file mode 100644
index 0000000..18108b3
--- /dev/null
+++ b/lib/src/main/java/io/github/justfoxx/doodads/package-info.java
@@ -0,0 +1,4 @@
+@Nonnull
+package io.github.justfoxx.doodads;
+
+import jakarta.annotation.Nonnull;
diff --git a/lib/src/test/java/doodads/OptionTest.java b/lib/src/test/java/doodads/OptionTest.java
new file mode 100644
index 0000000..0aee689
--- /dev/null
+++ b/lib/src/test/java/doodads/OptionTest.java
@@ -0,0 +1,188 @@
+/*
+ * This Java source file was generated by the Gradle 'init' task.
+ */
+package doodads;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import io.github.justfoxx.doodads.Option;
+
+import java.util.List;
+import java.util.NoSuchElementException;
+import org.junit.jupiter.api.Test;
+
+public class OptionTest {
+ @Test
+ public void optionSome_isSome_true() {
+ Option.Some some = Option.some("foo");
+ assertTrue(some.isSome());
+ }
+
+ @Test
+ public void optionNone_isNone_true() {
+ Option.None none = Option.none();
+ assertTrue(none.isNone());
+ }
+
+ @Test
+ public void option_from_isSome_true() {
+ Option option = Option.from("foo");
+ assertTrue(option.isSome());
+ }
+
+ @Test
+ public void option_from_isNone_true() {
+ Option option = Option.from(null);
+ assertTrue(option.isNone());
+ }
+
+ @Test
+ public void optionSome_getOrDefault_equals_true() {
+ Option some = Option.some("foo");
+ assertEquals("foo", some.getOrDefault("foo"));
+ }
+
+ @Test
+ public void optionNone_getOrDefault_equals_true() {
+ Option none = Option.none();
+ assertEquals("bar", none.getOrDefault("bar"));
+ }
+
+ @Test
+ public void optionSome_getOrThrow_throws() {
+ Option some = Option.some("foo");
+ assertDoesNotThrow(() -> some.getOrThrow());
+ }
+
+ @Test
+ public void optionNone_getOrThrow_throws() {
+ Option none = Option.none();
+ assertThrows(NoSuchElementException.class, none::getOrThrow);
+ }
+
+ @Test
+ public void optionSome_getOrThrow_customThrows() {
+ Option some = Option.some("foo");
+ assertDoesNotThrow(() -> some.getOrThrow(Exception::new));
+ }
+
+ @Test
+ public void optionNone_getOrThrow_customThrows() {
+ Option none = Option.none();
+ assertThrows(Exception.class, () -> none.getOrThrow(Exception::new));
+ }
+
+ @Test
+ public void optionSome_ifPresent_prints() {
+ Option some = Option.some("foo");
+ some.ifPresent(System.out::println);
+ }
+
+ @Test
+ public void optionNone_ifPresent_notPrints() {
+ Option none = Option.none();
+ none.ifPresent(System.out::println);
+ }
+
+ @Test
+ public void optionSome_ifPresentOrElse_prints() {
+ Option some = Option.some("foo");
+ some.ifPresentOrElse(System.out::println, () -> {});
+ }
+
+ @Test
+ public void optionNone_ifPresentOrElse_notPrints() {
+ Option none = Option.none();
+ none.ifPresentOrElse(System.out::println, () -> {});
+ }
+
+ @Test
+ public void optionSome_getType_equals() {
+ Option some = Option.some("foo");
+ assertEquals(Option.Type.SOME, some.getType());
+ }
+
+ @Test
+ public void optionNone_getType_equals() {
+ Option none = Option.none();
+ assertEquals(Option.Type.NONE, none.getType());
+ }
+
+ @Test
+ public void optionSome_filter_equals() {
+ Option some = Option.some("foo");
+ assertTrue(some.filter(s -> s.equals("foo")).isSome());
+ }
+
+ @Test
+ public void optionSome_filter_notEquals() {
+ Option some = Option.some("foo");
+ assertFalse(some.filter(s -> s.equals("bar")).isSome());
+ }
+
+ @Test
+ public void optionNone_filter_notEquals() {
+ Option none = Option.none();
+ assertFalse(none.filter(s -> s.equals("foo")).isSome());
+ }
+
+ @Test
+ public void optionSome_map_equals() {
+ Option some = Option.some("foo");
+ assertEquals(some.map(s -> s + "bar"), Option.some("foobar"));
+ }
+
+ @Test
+ public void optionNone_map_equals() {
+ Option none = Option.none();
+ assertEquals(none.map(s -> s + "bar"), Option.none());
+ }
+
+ @Test
+ public void optionSome_flatMap_equals() {
+ Option some = Option.some("foo");
+ assertEquals(some.flatMap(s -> Option.some(s + "bar")), Option.some("foobar"));
+ }
+
+ @Test
+ public void optionNone_flatMap_equals() {
+ Option none = Option.none();
+ assertEquals(none.flatMap(s -> Option.some(s + "bar")), Option.none());
+ }
+
+ @Test
+ public void optionSome_or_equals() {
+ Option some = Option.some("foo");
+ assertEquals(some.or(() -> Option.some("bar")), Option.some("foo"));
+ }
+
+ @Test
+ public void optionNone_or_equals() {
+ Option none = Option.none();
+ assertEquals(none.or(() -> Option.some("bar")), Option.some("bar"));
+ }
+
+ @Test
+ public void optionSome_toString_equals() {
+ Option some = Option.some("foo");
+ assertEquals(some.toString(), "Option.Some(foo)");
+ }
+
+ @Test
+ public void optionNone_toString_equals() {
+ Option none = Option.none();
+ assertEquals(none.toString(), "Option.None");
+ }
+
+ @Test
+ public void optionSome_stream_equals() {
+ Option some = Option.some("foo");
+ assertEquals(some.stream().toList(), List.of("foo"));
+ }
+
+ @Test
+ public void optionNone_stream_equals() {
+ Option none = Option.none();
+ assertEquals(none.stream().toList(), List.of());
+ }
+}
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..0fb8391
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,7 @@
+plugins {
+ // Apply the foojay-resolver plugin to allow automatic download of JDKs
+ id("org.gradle.toolchains.foojay-resolver-convention") version "0.4.0"
+}
+
+rootProject.name = "doodads"
+include("lib")