Inital work on the Java port of the compilerHEADtrunk

Signed-off-by: Antia Anderson <anita@ansan.io>

7 files changed, 680 insertions, 0 deletions

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..384ea47
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,7 @@
+[*]
+indent_style = tab
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5eaa7d0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,36 @@
+# Build output
+/build/
+
+# Bootstrapped tools
+/.tools/
+
+# Ivy
+/.ivy2/
+ivy-report/
+
+# Java
+*.class
+*.jar
+
+# IntelliJ IDEA
+.idea/
+*.iml
+*.ipr
+*.iws
+
+# Eclipse
+.classpath
+.project
+.settings/
+
+# VS Code
+.vscode/
+
+# Vim / Neovim
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..9efa6fb
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,338 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
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+distribute copies of the software, or if you modify it.
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+distribute and/or modify the software.
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+  Finally, any free program is threatened constantly by software
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+  The precise terms and conditions for copying, distribution and
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+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
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+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
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+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
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+distribute such modifications or work under the terms of Section 1
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+
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+    when run, you must cause it, when started running for such
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+These requirements apply to the modified work as a whole.  If
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+infringement or for any other reason (not limited to patent issues),
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+Foundation.
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+  10. If you wish to incorporate parts of the Program into other free
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+
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+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
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+POSSIBILITY OF SUCH DAMAGES.
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+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    You should have received a copy of the GNU General Public License along
+    with this program; if not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
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+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
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+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Moe Ghoul>, 1 April 1989
+  Moe Ghoul, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/README.md
diff --git a/build.xml b/build.xml
new file mode 100644
index 0000000..f5d65bc
--- /dev/null
+++ b/build.xml
@@ -0,0 +1,265 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project
+	name="mai"
+	default="build"
+	basedir="."
+	xmlns:ivy="antlib:org.apache.ivy.ant">
+
+	<!-- Project -->
+	<property name="src.dir" value="${basedir}/src"/>
+	<property name="test.dir" value="${basedir}/test"/>
+
+	<property name="build.dir" value="${basedir}/build"/>
+	<property name="classes.dir" value="${build.dir}/classes"/>
+	<property name="test.classes.dir" value="${build.dir}/test-classes"/>
+	<property name="test.results.dir" value="${build.dir}/test-results"/>
+	<property name="dist.dir" value="${build.dir}/dist"/>
+	<property name="deps.dir" value="${build.dir}/deps"/>
+
+	<!-- Bootstrap tools -->
+	<property name="tools.dir" value="${basedir}/.tools"/>
+
+	<!-- Java -->
+	<property name="java.release" value="25"/>
+
+	<!-- Ivy -->
+	<property name="ivy.version" value="2.6.0"/>
+	<property
+		name="ivy.jar"
+		value="${tools.dir}/ivy-${ivy.version}.jar"/>
+
+	<property
+		name="ivy.url"
+		value="https://repo.maven.apache.org/maven2/org/apache/ivy/ivy/${ivy.version}/ivy-${ivy.version}.jar"/>
+
+	<!-- Application -->
+	<property name="main.class" value="moe.anita.mai.Main"/>
+	<property name="jar.file" value="${dist.dir}/mai.jar"/>
+
+	<!-- Ivy bootstrap -->
+
+	<target name="check-ivy">
+		<available
+			file="${ivy.jar}"
+			property="ivy.available"/>
+	</target>
+
+	<target
+		name="download-ivy"
+		depends="check-ivy"
+		unless="ivy.available">
+
+		<mkdir dir="${tools.dir}"/>
+
+		<echo message="Downloading Apache Ivy ${ivy.version}..."/>
+
+		<get
+			src="${ivy.url}"
+			dest="${ivy.jar}"
+			usetimestamp="true"/>
+	</target>
+
+	<target name="bootstrap-ivy" depends="download-ivy">
+		<taskdef
+			resource="org/apache/ivy/ant/antlib.xml"
+			uri="antlib:org.apache.ivy.ant"
+			classpath="${ivy.jar}"/>
+	</target>
+
+	<!-- Initialization -->
+
+	<target name="init">
+		<mkdir dir="${classes.dir}"/>
+		<mkdir dir="${test.classes.dir}"/>
+		<mkdir dir="${test.results.dir}"/>
+		<mkdir dir="${dist.dir}"/>
+		<mkdir dir="${deps.dir}"/>
+	</target>
+
+	<!-- Dependencies -->
+
+	<target name="resolve" depends="init,bootstrap-ivy">
+		<ivy:resolve file="${basedir}/ivy.xml"/>
+
+		<ivy:retrieve
+			conf="test"
+			pattern="${deps.dir}/test/[artifact]-[revision].[ext]"/>
+	</target>
+
+	<path id="test.classpath">
+		<pathelement location="${classes.dir}"/>
+
+		<fileset dir="${deps.dir}/test">
+			<include name="*.jar"/>
+		</fileset>
+	</path>
+
+	<!-- Compile -->
+
+	<target name="compile" depends="init">
+		<javac
+			srcdir="${src.dir}"
+			destdir="${classes.dir}"
+			release="${java.release}"
+			encoding="UTF-8"
+			includeantruntime="false"
+			debug="true"/>
+	</target>
+
+	<target name="compile-test" depends="compile,resolve">
+		<javac
+			srcdir="${test.dir}"
+			destdir="${test.classes.dir}"
+			release="${java.release}"
+			encoding="UTF-8"
+			includeantruntime="false"
+			debug="true">
+
+			<classpath refid="test.classpath"/>
+		</javac>
+	</target>
+
+	<!-- Tests -->
+
+	<target name="test" depends="compile-test">
+		<junitlauncher
+			haltOnFailure="true"
+			printSummary="true">
+
+			<classpath>
+				<pathelement location="${classes.dir}"/>
+				<pathelement location="${test.classes.dir}"/>
+
+				<fileset dir="${deps.dir}/test">
+					<include name="*.jar"/>
+				</fileset>
+			</classpath>
+
+			<testclasses outputdir="${test.results.dir}">
+				<fileset dir="${test.classes.dir}">
+					<include name="**/*Test.class"/>
+				</fileset>
+
+				<listener type="legacy-plain"/>
+			</testclasses>
+		</junitlauncher>
+	</target>
+
+	<!-- JAR -->
+
+	<target name="jar" depends="compile">
+		<jar destfile="${jar.file}">
+			<fileset dir="${classes.dir}"/>
+
+			<manifest>
+				<attribute
+					name="Main-Class"
+					value="${main.class}"/>
+
+				<attribute
+					name="Implementation-Title"
+					value="mai"/>
+			</manifest>
+		</jar>
+	</target>
+
+	<!-- Build -->
+
+	<target name="build" depends="jar">
+		<echo message="Built ${jar.file}"/>
+	</target>
+
+	<!-- Run -->
+
+	<target name="run" depends="compile">
+		<java
+			classname="${main.class}"
+			fork="true"
+			failonerror="true">
+
+			<classpath>
+				<pathelement location="${classes.dir}"/>
+			</classpath>
+		</java>
+	</target>
+
+	<!-- LSP / JDT LS -->
+
+	<target name="lsp" depends="resolve">
+		<echo message="Generating JDT LS project files..."/>
+
+		<echo file="${basedir}/.project"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>mai</name>
+	<comment></comment>
+	<projects></projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments></arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
+]]></echo>
+
+		<echo file="${basedir}/.classpath"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="test"/>
+	<classpathentry
+		kind="con"
+		path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+]]></echo>
+
+		<fileset id="lsp.dependencies" dir="${deps.dir}/test">
+			<include name="*.jar"/>
+		</fileset>
+
+		<pathconvert
+			property="lsp.dependency.entries"
+			refid="lsp.dependencies"
+			pathsep="&#10;">
+
+			<mapper>
+				<globmapper
+					from="${basedir}/*"
+					to="	&lt;classpathentry kind=&quot;lib&quot; path=&quot;*&quot;/&gt;"/>
+			</mapper>
+		</pathconvert>
+
+		<echo
+			file="${basedir}/.classpath"
+			append="true">${lsp.dependency.entries}
+</echo>
+
+		<echo file="${basedir}/.classpath" append="true"><![CDATA[
+	<classpathentry kind="output" path="build/classes"/>
+</classpath>
+]]></echo>
+
+		<echo message="Generated .project and .classpath"/>
+	</target>
+
+	<!-- Clean -->
+
+	<target name="clean">
+		<delete dir="${build.dir}"/>
+	</target>
+
+	<target name="clean-lsp">
+		<delete file="${basedir}/.project"/>
+		<delete file="${basedir}/.classpath"/>
+		<delete dir="${basedir}/.settings"/>
+	</target>
+
+	<target name="clean-all" depends="clean,clean-lsp">
+		<delete dir="${tools.dir}"/>
+	</target>
+
+	<target name="rebuild" depends="clean,build"/>
+
+</project>
diff --git a/ivy.xml b/ivy.xml
new file mode 100644
index 0000000..4f3d721
--- /dev/null
+++ b/ivy.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<ivy-module version="2.0">
+
+	<info
+		organisation="moe.anita"
+		module="mai"/>
+
+	<configurations>
+		<conf
+			name="compile"
+			description="Compile-time dependencies"/>
+
+		<conf
+			name="test"
+			extends="compile"
+			description="Test dependencies"/>
+	</configurations>
+
+	<dependencies>
+		<dependency
+			org="org.junit.jupiter"
+			name="junit-jupiter"
+			rev="5.13.4"
+			conf="test->default"/>
+	</dependencies>
+
+</ivy-module>
diff --git a/src/moe/anita/mai/Main.java b/src/moe/anita/mai/Main.java
new file mode 100644
index 0000000..b061877
--- /dev/null
+++ b/src/moe/anita/mai/Main.java
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+// Copyright (C) 2026 Anita Anderson
+void main() {
+	IO.println("Hello, World!");
+}