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package org.glavo.javah;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.Opcodes;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
class Utils {
public static final int MAX_SUPPORTED_VERSION = 13;
public static final List<String> MULTI_RELEASE_VERSIONS =
IntStream.rangeClosed(9, MAX_SUPPORTED_VERSION).mapToObj(Integer::toString).collect(Collectors.toList());
public static final Pattern SIMPLE_NAME_PATTERN = Pattern.compile("[^.;\\[/]+");
public static final Pattern FULL_NAME_PATTERN =
Pattern.compile("[^.;\\[/]+(\\.[^.;\\[/]+)*");
public static final Pattern METHOD_NAME_PATTERN = Pattern.compile("(<init>)|(<cinit>)|([^.;\\[/<>]+)");
public static final Pattern METHOD_TYPE_PATTERN =
Pattern.compile("\\((?<args>(\\[*([BCDFIJSZ]|L[^.;\\[/]+(/[^.;\\\\\\[/]+)*;))*)\\)(?<ret>\\[*([BCDFIJSZV]|L[^.;\\[/]+(/[^.;\\[/]+)*;))");
public static final PrintWriter NOOP_WRITER = new PrintWriter(new Writer() {
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
}
@Override
public void flush() throws IOException {
}
@Override
public void close() throws IOException {
}
});
public static String mangleName(String name) {
StringBuilder builder = new StringBuilder(name.length() * 2);
int len = name.length();
for (int i = 0; i < len; i++) {
char ch = name.charAt(i);
if (ch == '.') {
builder.append('_');
} else if (ch == '_') {
builder.append("_1");
} else if (ch == ';') {
builder.append("_2");
} else if (ch == '[') {
builder.append("_3");
} else if ((ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'z') || (ch >= 'A' && (ch <= 'Z'))) {
builder.append(ch);
} else {
builder.append(String.format("_0%04x", (int) ch));
}
}
return builder.toString();
}
public static String escape(String unicode) {
Objects.requireNonNull(unicode);
int len = unicode.length();
StringBuilder builder = new StringBuilder(len);
for (int i = 0; i < len; i++) {
char ch = unicode.charAt(i);
if (ch >= ' ' && ch <= '~') {
builder.append(ch);
} else {
builder.append(String.format("\\u%04x", (int) ch));
}
}
return builder.toString();
}
public static Path classPathRoot(Path p) {
Objects.requireNonNull(p);
p = p.toAbsolutePath();
if (Files.notExists(p)) {
return null;
}
if (Files.isDirectory(p)) {
return p;
}
try {
FileSystem fs = FileSystems.newFileSystem(p, (ClassLoader) null);
String name = p.getFileName().toString().toLowerCase();
if (name.endsWith(".jar") || name.endsWith(".zip")) {
return fs.getPath("/");
}
if (name.endsWith(".jmod")) {
return fs.getPath("/", "classes");
}
fs.close();
} catch (IOException ignored) {
return null;
}
return null;
}
public static ClassName superClassOf(ClassReader reader) {
Objects.requireNonNull(reader);
class V extends ClassVisitor {
V() {
super(Opcodes.ASM7);
}
ClassName superName = null;
@Override
public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
if (superName != null) {
this.superName = ClassName.of(superName.replace('/', '.'));
}
}
}
V v = new V();
reader.accept(v, ClassReader.SKIP_CODE | ClassReader.SKIP_FRAMES | ClassReader.SKIP_DEBUG);
return v.superName;
}
}
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