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package org.glavo.javah;
import org.objectweb.asm.Type;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.*;
import java.util.jar.Manifest;
class Utils {
static String encode(String str) {
StringBuilder buffer = new StringBuilder(str.length());
int len = str.length();
for (int i = 0; i < len; i++) {
char ch = str.charAt(i);
if (ch == '_') {
buffer.append("_1");
} else if (ch == ';') {
buffer.append("_2");
} else if (ch == '[') {
buffer.append("_3");
} else if ((ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) {
buffer.append(ch);
} else {
buffer.append(String.format("_0%04x", (int) ch));
}
}
return buffer.toString();
}
static String mapToNativeType(Type jt) {
switch (jt.toString()) {
case "Z":
return "jboolean";
case "B":
return "jbyte";
case "C":
return "jchar";
case "S":
return "jshort";
case "I":
return "jint";
case "J":
return "jlong";
case "F":
return "jfloat";
case "D":
return "jdouble";
case "V":
return "void";
case "Ljava/lang/Class;":
return "jclass";
case "Ljava/lang/String;":
return "jstring";
case "Ljava/lang/Throwable ;":
return "jthrowable";
case "[Z":
return "jbooleanArray";
case "[B":
return "jbyteArray";
case "[C":
return "jcharArray";
case "[S":
return "jshortArray";
case "[I":
return "jintArray";
case "[J":
return "jlongArray";
case "[F":
return "jfloatArray";
case "[D":
return "jdoubleArray";
}
if (jt.toString().startsWith("[")) {
return "jobjectArray";
}
return "jobject";
}
static String mangledArgSignature(Type methodType) {
Objects.requireNonNull(methodType);
String str = methodType.toString();
int idx = str.indexOf(')');
if (idx == -1) {
throw new IllegalArgumentException(methodType.toString() + "is not a method type");
}
return encode(str.substring(1, idx));
}
static boolean isRegularClassName(String name) {
Objects.requireNonNull(name);
return !name.contains("//")
&& !name.contains("..")
&& name.indexOf('\\') == -1
&& name.indexOf(';') == -1
&& name.indexOf('[') == -1;
}
static String fullClassNameOf(String name) {
Objects.requireNonNull(name);
int idx = name.indexOf('/');
if (idx == -1) {
return name;
}
String cn = name.substring(idx + 1);
if (cn.isEmpty() || cn.indexOf('/') == -1) {
throw new IllegalArgumentException("Illegal class name: " + name);
}
return cn;
}
static String simpleNameOf(String name) {
int idx = name.lastIndexOf('.');
return name.substring(idx + 1);
}
static Path searchFromPathList(List<Path> paths, String className) {
Objects.requireNonNull(paths);
Objects.requireNonNull(className);
String fp = fullClassNameOf(className).replace('.', '/') + ".class";
for (Path path : paths) {
Objects.requireNonNull(path);
Path p = path.resolve(fp);
if (Files.isRegularFile(p)) {
return p;
}
}
return null;
}
static List<Path> getPathsFrom(Path root) {
Objects.requireNonNull(root);
root = root.toAbsolutePath();
if (Files.isRegularFile(root)) {
String name = root.toString().toLowerCase();
try {
FileSystem fs = FileSystems.newFileSystem(root, (ClassLoader) null);
if (name.endsWith(".jar")) {
root = fs.getPath("/");
} else if (name.endsWith(".jmod")) {
root = fs.getPath("/classes");
} else {
return Collections.emptyList();
}
} catch (IOException e) {
return Collections.emptyList();
}
}
if (!Files.isDirectory(root)) {
return Collections.emptyList();
}
boolean isMultiRelease = false;
Path manifest = root.resolve("META-INF").resolve("MANIFEST.MF");
if (Files.exists(manifest) && Files.isRegularFile(manifest)) {
try (InputStream input = Files.newInputStream(manifest)) {
isMultiRelease = Boolean.parseBoolean(
new Manifest(input).getMainAttributes().getOrDefault("Multi-Release", "false").toString()
);
} catch (Exception ignored) {
}
}
if (!isMultiRelease) {
return Collections.singletonList(root);
}
LinkedList<Path> list = new LinkedList<>();
Path mr = root.resolve("META-INF").resolve("versions");
try {
Files.list(mr)
.filter(Utils::checkMultiReleaseVersion)
.sorted(Comparator.comparingInt(a -> Integer.parseInt(a.getFileName().toString())))
.forEachOrdered(list::addFirst);
} catch (IOException ignored) {
}
list.add(root);
return list;
}
private static final String[] MULTI_VERSIONS = {"9", "10", "11", "12", "13"};
private static boolean checkMultiReleaseVersion(Path p) {
Objects.requireNonNull(p);
String n = p.getFileName().toString();
for (String version : MULTI_VERSIONS) {
if (version.equals(n)) {
return true;
}
}
return false;
}
static Path searchFrom(List<Path> searchPaths, String name) {
Objects.requireNonNull(searchPaths);
Objects.requireNonNull(name);
name = simpleNameOf(name).replace('.', '/') + ".class";
for (Path searchPath : searchPaths) {
Path p = searchPath.resolve(name);
if (Files.isRegularFile(p)) {
return p;
}
}
return null;
}
}
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