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81 changes: 81 additions & 0 deletions
81
loader/src/test/java/net/neoforged/fml/test/RuntimeCompiler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package net.neoforged.fml.test; | ||
|
|
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| import com.google.errorprone.annotations.CheckReturnValue; | ||
| import java.io.IOException; | ||
| import java.net.URI; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.nio.file.FileSystem; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Locale; | ||
| import javax.tools.DiagnosticCollector; | ||
| import javax.tools.JavaCompiler; | ||
| import javax.tools.JavaFileObject; | ||
| import javax.tools.SimpleJavaFileObject; | ||
| import javax.tools.StandardJavaFileManager; | ||
| import javax.tools.StandardLocation; | ||
| import javax.tools.ToolProvider; | ||
| import org.intellij.lang.annotations.Language; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| public class RuntimeCompiler { | ||
| private static final Logger LOGGER = LoggerFactory.getLogger(RuntimeCompiler.class); | ||
| private static final JavaCompiler COMPILER = ToolProvider.getSystemJavaCompiler(); | ||
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| private final DiagnosticCollector<JavaFileObject> diagnostics; | ||
| private final StandardJavaFileManager manager; | ||
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| public RuntimeCompiler(FileSystem targetFS) { | ||
| this.diagnostics = new DiagnosticCollector<>(); | ||
| this.manager = COMPILER.getStandardFileManager(diagnostics, Locale.ROOT, StandardCharsets.UTF_8); | ||
| try { | ||
| manager.setLocationFromPaths(StandardLocation.CLASS_OUTPUT, List.of(targetFS.getPath("/"))); | ||
| } catch (IOException e) { | ||
| throw new RuntimeException("Failed to set root output location", e); | ||
| } | ||
| } | ||
|
|
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| public CompilationBuilder builder() { | ||
| return new CompilationBuilder(); | ||
| } | ||
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| public class CompilationBuilder { | ||
| private final List<JavaFileObject> files = new ArrayList<>(); | ||
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| @CheckReturnValue | ||
| public CompilationBuilder addClass(String name, @Language("java") String content) { | ||
| if (!content.trim().startsWith("package ")) { | ||
| List<String> nameByDot = new ArrayList<>(Arrays.asList(name.split("\\."))); | ||
| nameByDot.removeLast(); | ||
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| content = ("package " + String.join(".", nameByDot) + ";\n" + content); | ||
| } | ||
| this.files.add(new JavaSourceFromString(name, content)); | ||
| return this; | ||
| } | ||
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| public void compile() { | ||
| var task = COMPILER.getTask(null, manager, diagnostics, null, null, files); | ||
| if (!task.call()) { | ||
| diagnostics.getDiagnostics().forEach(diagnostic -> LOGGER.error("Failed to compile: {}", diagnostic)); | ||
| throw new RuntimeException("Failed to compile class"); | ||
| } | ||
| } | ||
| } | ||
|
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| public static class JavaSourceFromString extends SimpleJavaFileObject { | ||
| private final String sourceCode; | ||
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| public JavaSourceFromString(String name, String sourceCode) { | ||
| super(URI.create("string:///" + name.replace('.', '/') + Kind.SOURCE.extension), Kind.SOURCE); | ||
| this.sourceCode = sourceCode; | ||
| } | ||
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| @Override | ||
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { | ||
| return sourceCode; | ||
| } | ||
| } | ||
| } |
73 changes: 73 additions & 0 deletions
73
loader/src/test/java/net/neoforged/fml/test/TestModFile.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package net.neoforged.fml.test; | ||
|
|
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| import com.electronwill.nightconfig.toml.TomlFormat; | ||
| import com.electronwill.nightconfig.toml.TomlParser; | ||
| import com.google.common.jimfs.Configuration; | ||
| import com.google.common.jimfs.Jimfs; | ||
| import com.google.errorprone.annotations.CheckReturnValue; | ||
| import cpw.mods.jarhandling.JarContentsBuilder; | ||
| import cpw.mods.jarhandling.SecureJar; | ||
| import java.io.IOException; | ||
| import java.nio.file.FileSystem; | ||
| import net.neoforged.fml.loading.moddiscovery.ModFile; | ||
| import net.neoforged.fml.loading.moddiscovery.ModFileInfo; | ||
| import net.neoforged.fml.loading.moddiscovery.ModJarMetadata; | ||
| import net.neoforged.fml.loading.moddiscovery.NightConfigWrapper; | ||
| import net.neoforged.fml.loading.modscan.Scanner; | ||
| import net.neoforged.neoforgespi.locating.ModFileDiscoveryAttributes; | ||
| import net.neoforged.neoforgespi.locating.ModFileInfoParser; | ||
| import org.intellij.lang.annotations.Language; | ||
|
|
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| public class TestModFile extends ModFile implements AutoCloseable { | ||
| private static final TomlParser PARSER = TomlFormat.instance().createParser(); | ||
|
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| private final FileSystem fileSystem; | ||
| private final RuntimeCompiler compiler; | ||
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| private TestModFile(SecureJar jar, FileSystem fileSystem, ModFileInfoParser parser) { | ||
| super(jar, parser, new ModFileDiscoveryAttributes(null, null, null, null)); | ||
| this.fileSystem = fileSystem; | ||
| this.compiler = new RuntimeCompiler(fileSystem); | ||
| } | ||
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| private static TestModFile buildFile(FileSystem fileSystem, ModFileInfoParser parser) { | ||
| var jc = new JarContentsBuilder() | ||
| .paths(fileSystem.getPath("/")) | ||
| .build(); | ||
| var metadata = new ModJarMetadata(jc); | ||
| var sj = SecureJar.from(jc, metadata); | ||
| var mod = new TestModFile(sj, fileSystem, parser); | ||
| metadata.setModFile(mod); | ||
| return mod; | ||
| } | ||
|
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| @CheckReturnValue | ||
| public RuntimeCompiler.CompilationBuilder classBuilder() { | ||
| return compiler.builder(); | ||
| } | ||
|
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| public void scan() { | ||
| setScanResult(new Scanner(this).scan(), null); | ||
| } | ||
|
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| @CheckReturnValue | ||
| public static TestModFile newInstance(@Language("toml") String modsDotToml) { | ||
| final var fs = Jimfs.newFileSystem(Configuration.unix() | ||
| .toBuilder() | ||
| .setWorkingDirectory("/") | ||
| .build()); | ||
| var wrapper = new NightConfigWrapper(PARSER.parse(modsDotToml)); | ||
| return buildFile(fs, file -> new ModFileInfo((ModFile) file, wrapper, wrapper::setFile)); | ||
| } | ||
|
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| @Override | ||
| public void close() throws IOException { | ||
| getSecureJar().getRootPath().getFileSystem().close(); | ||
| fileSystem.close(); | ||
| } | ||
|
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| @Override | ||
| public String getFileName() { | ||
| return "dummy mod.jar"; | ||
| } | ||
| } |
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