mirror of
https://github.com/ViaVersion/ViaProxy.git
synced 2024-11-23 12:06:06 +01:00
J17 -> J8 improvements (#43)
* Desugar record equals, hashCode, and toString * No more runtime libraries for J17 -> J8 I dropped Apache Commons IO by implementing transferTo, then implementing readAllBytes as a transferTo a ByteArrayOutputStream * Fix lists being constructed in reverse Well they still are, but they're reversed at the end. * Better Stream.toList conversion
This commit is contained in:
Josiah Glosson
GitHub
parent
565690fcb1
commit
6070c67785
@ -20,20 +20,44 @@ package net.raphimc.viaproxy.injection;
|
||||
import net.lenni0451.classtransform.TransformerManager;
|
||||
import net.lenni0451.classtransform.transformer.IBytecodeTransformer;
|
||||
import net.lenni0451.classtransform.utils.ASMUtils;
|
||||
import net.raphimc.viaproxy.util.logging.Logger;
|
||||
import org.objectweb.asm.Label;
|
||||
import org.objectweb.asm.MethodVisitor;
|
||||
import org.objectweb.asm.Opcodes;
|
||||
import org.objectweb.asm.Type;
|
||||
import org.objectweb.asm.tree.*;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
import java.io.File;
|
||||
import java.nio.file.Files;
|
||||
import java.util.*;
|
||||
|
||||
public class Java17ToJava8 implements IBytecodeTransformer {
|
||||
|
||||
private static final boolean DEBUG_DUMP = Boolean.getBoolean("viaproxy.debug.dump17to8");
|
||||
|
||||
private static final char STACK_ARG_CONSTANT = '\u0001';
|
||||
private static final char BSM_ARG_CONSTANT = '\u0002';
|
||||
|
||||
final TransformerManager transformerManager;
|
||||
private static final String TRANSFERTO_DESC = "(Ljava/io/InputStream;Ljava/io/OutputStream;)J";
|
||||
|
||||
private static final String EQUALS_DESC = "(Ljava/lang/Object;)Z";
|
||||
private static final String HASHCODE_DESC = "()I";
|
||||
private static final String TOSTRING_DESC = "()Ljava/lang/String;";
|
||||
private static final Map<String, String> PRIMITIVE_WRAPPERS = new HashMap<>();
|
||||
|
||||
static {
|
||||
PRIMITIVE_WRAPPERS.put("V", Type.getInternalName(Void.class));
|
||||
PRIMITIVE_WRAPPERS.put("Z", Type.getInternalName(Boolean.class));
|
||||
PRIMITIVE_WRAPPERS.put("B", Type.getInternalName(Byte.class));
|
||||
PRIMITIVE_WRAPPERS.put("S", Type.getInternalName(Short.class));
|
||||
PRIMITIVE_WRAPPERS.put("C", Type.getInternalName(Character.class));
|
||||
PRIMITIVE_WRAPPERS.put("I", Type.getInternalName(Integer.class));
|
||||
PRIMITIVE_WRAPPERS.put("F", Type.getInternalName(Float.class));
|
||||
PRIMITIVE_WRAPPERS.put("J", Type.getInternalName(Long.class));
|
||||
PRIMITIVE_WRAPPERS.put("D", Type.getInternalName(Double.class));
|
||||
}
|
||||
|
||||
private final TransformerManager transformerManager;
|
||||
private final int nativeClassVersion;
|
||||
private final List<String> whitelistedPackages = new ArrayList<>();
|
||||
|
||||
@ -69,10 +93,20 @@ public class Java17ToJava8 implements IBytecodeTransformer {
|
||||
this.convertMapMethods(classNode);
|
||||
this.convertStreamMethods(classNode);
|
||||
this.convertMiscMethods(classNode);
|
||||
this.removeRecords(classNode);
|
||||
this.convertRecords(classNode);
|
||||
|
||||
if (calculateStackMapFrames) {
|
||||
return ASMUtils.toBytes(classNode, this.transformerManager.getClassTree(), this.transformerManager.getClassProvider());
|
||||
final byte[] result = ASMUtils.toBytes(classNode, this.transformerManager.getClassTree(), this.transformerManager.getClassProvider());
|
||||
if (DEBUG_DUMP) {
|
||||
try {
|
||||
final File file = new File("vp_17to8_dump", classNode.name + ".class");
|
||||
file.getParentFile().mkdirs();
|
||||
Files.write(file.toPath(), result);
|
||||
} catch (Throwable e) {
|
||||
Logger.LOGGER.error("Failed to dump class {}", className, e);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
} else {
|
||||
return ASMUtils.toStacklessBytes(classNode);
|
||||
}
|
||||
@ -144,6 +178,13 @@ public class Java17ToJava8 implements IBytecodeTransformer {
|
||||
list.add(new InsnNode(Opcodes.POP));
|
||||
}
|
||||
list.add(new VarInsnNode(Opcodes.ALOAD, freeVarIndex));
|
||||
list.add(new InsnNode(Opcodes.DUP));
|
||||
list.add(new MethodInsnNode(
|
||||
Opcodes.INVOKESTATIC,
|
||||
"java/util/Collections",
|
||||
"reverse",
|
||||
"(Ljava/util/List;)V"
|
||||
));
|
||||
list.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "java/util/Collections", "unmodifiableList", "(Ljava/util/List;)Ljava/util/List;"));
|
||||
}
|
||||
} else if (min.name.equals("copyOf")) {
|
||||
@ -268,16 +309,25 @@ public class Java17ToJava8 implements IBytecodeTransformer {
|
||||
final InsnList list = new InsnList();
|
||||
|
||||
if (min.name.equals("toList")) {
|
||||
int freeVarIndex = ASMUtils.getFreeVarIndex(method);
|
||||
list.add(new VarInsnNode(Opcodes.ASTORE, freeVarIndex));
|
||||
|
||||
list.add(new TypeInsnNode(Opcodes.NEW, "java/util/ArrayList"));
|
||||
list.add(new InsnNode(Opcodes.DUP));
|
||||
list.add(new VarInsnNode(Opcodes.ALOAD, freeVarIndex));
|
||||
list.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "java/util/stream/Stream", "toArray", "()[Ljava/lang/Object;"));
|
||||
list.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "java/util/Arrays", "asList", "([Ljava/lang/Object;)Ljava/util/List;"));
|
||||
list.add(new MethodInsnNode(Opcodes.INVOKESPECIAL, "java/util/ArrayList", "<init>", "(Ljava/util/Collection;)V"));
|
||||
list.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "java/util/Collections", "unmodifiableList", "(Ljava/util/List;)Ljava/util/List;"));
|
||||
list.add(new MethodInsnNode(
|
||||
Opcodes.INVOKESTATIC,
|
||||
"java/util/stream/Collectors",
|
||||
"toList",
|
||||
"()Ljava/util/stream/Collector;"
|
||||
));
|
||||
list.add(new MethodInsnNode(
|
||||
Opcodes.INVOKEINTERFACE,
|
||||
"java/util/stream/Stream",
|
||||
"collect",
|
||||
"(Ljava/util/stream/Collector;)Ljava/lang/Object;"
|
||||
));
|
||||
list.add(new TypeInsnNode(Opcodes.CHECKCAST, "java/util/List"));
|
||||
list.add(new MethodInsnNode(
|
||||
Opcodes.INVOKESTATIC,
|
||||
"java/util/Collections",
|
||||
"unmodifiableList",
|
||||
"(Ljava/util/List;)Ljava/util/List;")
|
||||
);
|
||||
}
|
||||
|
||||
if (list.size() != 0) {
|
||||
@ -290,6 +340,15 @@ public class Java17ToJava8 implements IBytecodeTransformer {
|
||||
}
|
||||
|
||||
private void convertMiscMethods(final ClassNode node) {
|
||||
boolean needsTransferTo = false;
|
||||
String transferToName;
|
||||
{
|
||||
int i = 0;
|
||||
do {
|
||||
transferToName = "transferTo$" + i;
|
||||
} while (ASMUtils.getMethod(node, transferToName, TRANSFERTO_DESC) != null);
|
||||
}
|
||||
|
||||
for (MethodNode method : node.methods) {
|
||||
for (AbstractInsnNode insn : method.instructions.toArray()) {
|
||||
if (insn instanceof MethodInsnNode) {
|
||||
@ -303,7 +362,36 @@ public class Java17ToJava8 implements IBytecodeTransformer {
|
||||
}
|
||||
} else if (min.owner.equals("java/io/InputStream")) {
|
||||
if (min.name.equals("readAllBytes") && min.getOpcode() == Opcodes.INVOKEVIRTUAL) {
|
||||
list.add(new MethodInsnNode(Opcodes.INVOKESTATIC, "org/apache/commons/io/IOUtils", "toByteArray", "(Ljava/io/InputStream;)[B"));
|
||||
needsTransferTo = true;
|
||||
list.add(new TypeInsnNode(Opcodes.NEW, "java/io/ByteArrayOutputStream"));
|
||||
list.add(new InsnNode(Opcodes.DUP));
|
||||
list.add(new MethodInsnNode(
|
||||
Opcodes.INVOKESPECIAL,
|
||||
"java/io/ByteArrayOutputStream",
|
||||
"<init>",
|
||||
"()V"
|
||||
));
|
||||
list.add(new InsnNode(Opcodes.DUP_X1));
|
||||
list.add(new MethodInsnNode(
|
||||
Opcodes.INVOKESTATIC,
|
||||
node.name,
|
||||
transferToName,
|
||||
TRANSFERTO_DESC
|
||||
));
|
||||
list.add(new InsnNode(Opcodes.POP2));
|
||||
list.add(new MethodInsnNode(
|
||||
Opcodes.INVOKEVIRTUAL,
|
||||
"java/io/ByteArrayOutputStream",
|
||||
"toByteArray",
|
||||
"()[B"
|
||||
));
|
||||
} else if (min.name.equals("transferTo") && min.getOpcode() == Opcodes.INVOKEVIRTUAL) {
|
||||
needsTransferTo = true;
|
||||
list.add(new MethodInsnNode(Opcodes.INVOKESTATIC,
|
||||
node.name,
|
||||
transferToName,
|
||||
TRANSFERTO_DESC
|
||||
));
|
||||
}
|
||||
} else if (min.owner.equals("java/nio/file/FileSystems")) {
|
||||
if (min.name.equals("newFileSystem") && min.desc.equals("(Ljava/nio/file/Path;Ljava/util/Map;Ljava/lang/ClassLoader;)Ljava/nio/file/FileSystem;")) {
|
||||
@ -402,26 +490,272 @@ public class Java17ToJava8 implements IBytecodeTransformer {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (needsTransferTo) {
|
||||
// I compiled this by hand btw
|
||||
final MethodVisitor transferTo = node.visitMethod(
|
||||
Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC | Opcodes.ACC_SYNTHETIC,
|
||||
transferToName, TRANSFERTO_DESC, null, new String[] {"java/io/IOException"}
|
||||
);
|
||||
transferTo.visitCode();
|
||||
|
||||
// Objects.requireNonNull(out, "out");
|
||||
transferTo.visitVarInsn(Opcodes.ALOAD, 1);
|
||||
transferTo.visitLdcInsn("out");
|
||||
transferTo.visitMethodInsn(
|
||||
Opcodes.INVOKESTATIC,
|
||||
"java/util/Objects",
|
||||
"requireNonNull",
|
||||
"(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;",
|
||||
false
|
||||
);
|
||||
transferTo.visitInsn(Opcodes.POP);
|
||||
|
||||
// long transferred = 0;
|
||||
transferTo.visitInsn(Opcodes.LCONST_0);
|
||||
transferTo.visitVarInsn(Opcodes.LSTORE, 2);
|
||||
|
||||
// byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
|
||||
transferTo.visitIntInsn(Opcodes.SIPUSH, 8192);
|
||||
transferTo.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_BYTE);
|
||||
transferTo.visitVarInsn(Opcodes.ASTORE, 4);
|
||||
|
||||
// while ((read = this.read(buffer, 0, DEFAULT_BUFFER_SIZE)) >= 0) {
|
||||
final Label whileStart = new Label();
|
||||
final Label whileEnd = new Label();
|
||||
transferTo.visitLabel(whileStart);
|
||||
transferTo.visitVarInsn(Opcodes.ALOAD, 0);
|
||||
transferTo.visitVarInsn(Opcodes.ALOAD, 4);
|
||||
transferTo.visitInsn(Opcodes.ICONST_0);
|
||||
transferTo.visitIntInsn(Opcodes.SIPUSH, 8192);
|
||||
transferTo.visitMethodInsn(
|
||||
Opcodes.INVOKEVIRTUAL,
|
||||
"java/io/InputStream",
|
||||
"read",
|
||||
"([BII)I",
|
||||
false
|
||||
);
|
||||
transferTo.visitInsn(Opcodes.DUP);
|
||||
transferTo.visitVarInsn(Opcodes.ISTORE, 5);
|
||||
transferTo.visitJumpInsn(Opcodes.IFLT, whileEnd);
|
||||
|
||||
// out.write(buffer, 0, read);
|
||||
transferTo.visitVarInsn(Opcodes.ALOAD, 1);
|
||||
transferTo.visitVarInsn(Opcodes.ALOAD, 4);
|
||||
transferTo.visitInsn(Opcodes.ICONST_0);
|
||||
transferTo.visitVarInsn(Opcodes.ILOAD, 5);
|
||||
transferTo.visitMethodInsn(
|
||||
Opcodes.INVOKEVIRTUAL,
|
||||
"java/io/OutputStream",
|
||||
"write",
|
||||
"([BII)V",
|
||||
false
|
||||
);
|
||||
|
||||
// transferred += read;
|
||||
transferTo.visitVarInsn(Opcodes.LLOAD, 2);
|
||||
transferTo.visitVarInsn(Opcodes.ILOAD, 5);
|
||||
transferTo.visitInsn(Opcodes.I2L);
|
||||
transferTo.visitInsn(Opcodes.LADD);
|
||||
transferTo.visitVarInsn(Opcodes.LSTORE, 2);
|
||||
|
||||
// }
|
||||
transferTo.visitJumpInsn(Opcodes.GOTO, whileStart);
|
||||
transferTo.visitLabel(whileEnd);
|
||||
|
||||
// return transferred;
|
||||
transferTo.visitVarInsn(Opcodes.LLOAD, 2);
|
||||
transferTo.visitInsn(Opcodes.LRETURN);
|
||||
|
||||
transferTo.visitEnd();
|
||||
}
|
||||
}
|
||||
|
||||
private void removeRecords(final ClassNode node) {
|
||||
if (node.superName.equals("java/lang/Record")) {
|
||||
node.access &= ~Opcodes.ACC_RECORD;
|
||||
node.superName = "java/lang/Object";
|
||||
private void convertRecords(final ClassNode node) {
|
||||
if (!node.superName.equals("java/lang/Record")) return;
|
||||
|
||||
List<MethodNode> constructors = ASMUtils.getMethodsFromCombi(node, "<init>");
|
||||
for (MethodNode method : constructors) {
|
||||
for (AbstractInsnNode insn : method.instructions.toArray()) {
|
||||
if (insn.getOpcode() == Opcodes.INVOKESPECIAL) {
|
||||
MethodInsnNode min = (MethodInsnNode) insn;
|
||||
if (min.owner.equals("java/lang/Record")) {
|
||||
min.owner = "java/lang/Object";
|
||||
break;
|
||||
}
|
||||
node.access &= ~Opcodes.ACC_RECORD;
|
||||
node.superName = "java/lang/Object";
|
||||
|
||||
final List<MethodNode> constructors = ASMUtils.getMethodsFromCombi(node, "<init>");
|
||||
for (MethodNode method : constructors) {
|
||||
for (AbstractInsnNode insn : method.instructions.toArray()) {
|
||||
if (insn.getOpcode() == Opcodes.INVOKESPECIAL) {
|
||||
MethodInsnNode min = (MethodInsnNode) insn;
|
||||
if (min.owner.equals("java/lang/Record")) {
|
||||
min.owner = "java/lang/Object";
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
node.methods.remove(ASMUtils.getMethod(node, "equals", EQUALS_DESC));
|
||||
final MethodVisitor equals = node.visitMethod(Opcodes.ACC_PUBLIC, "equals", EQUALS_DESC, null, null);
|
||||
{
|
||||
equals.visitCode();
|
||||
|
||||
equals.visitVarInsn(Opcodes.ALOAD, 0);
|
||||
equals.visitVarInsn(Opcodes.ALOAD, 1);
|
||||
final Label notSameLabel = new Label();
|
||||
equals.visitJumpInsn(Opcodes.IF_ACMPNE, notSameLabel);
|
||||
equals.visitInsn(Opcodes.ICONST_1);
|
||||
equals.visitInsn(Opcodes.IRETURN);
|
||||
equals.visitLabel(notSameLabel);
|
||||
|
||||
// Original uses Class.isInstance, but I think instanceof is more fitting here
|
||||
equals.visitVarInsn(Opcodes.ALOAD, 1);
|
||||
equals.visitTypeInsn(Opcodes.INSTANCEOF, node.name);
|
||||
final Label notIsInstanceLabel = new Label();
|
||||
equals.visitJumpInsn(Opcodes.IFNE, notIsInstanceLabel);
|
||||
equals.visitInsn(Opcodes.ICONST_0);
|
||||
equals.visitInsn(Opcodes.IRETURN);
|
||||
equals.visitLabel(notIsInstanceLabel);
|
||||
|
||||
equals.visitVarInsn(Opcodes.ALOAD, 1);
|
||||
equals.visitTypeInsn(Opcodes.CHECKCAST, node.name);
|
||||
equals.visitVarInsn(Opcodes.ASTORE, 2);
|
||||
|
||||
final Label notEqualLabel = new Label();
|
||||
for (final RecordComponentNode component : node.recordComponents) {
|
||||
equals.visitVarInsn(Opcodes.ALOAD, 0);
|
||||
equals.visitFieldInsn(Opcodes.GETFIELD, node.name, component.name, component.descriptor);
|
||||
equals.visitVarInsn(Opcodes.ALOAD, 2);
|
||||
equals.visitFieldInsn(Opcodes.GETFIELD, node.name, component.name, component.descriptor);
|
||||
if (Type.getType(component.descriptor).getSort() >= Type.ARRAY) { // ARRAY or OBJECT
|
||||
equals.visitMethodInsn(
|
||||
Opcodes.INVOKESTATIC,
|
||||
Type.getInternalName(Objects.class),
|
||||
"equals",
|
||||
"(Ljava/lang/Object;Ljava/lang/Object;)Z",
|
||||
false
|
||||
);
|
||||
equals.visitJumpInsn(Opcodes.IFEQ, notEqualLabel);
|
||||
continue;
|
||||
} else if ("BSCIZ".contains(component.descriptor)) {
|
||||
equals.visitJumpInsn(Opcodes.IF_ICMPNE, notEqualLabel);
|
||||
continue;
|
||||
} else if (component.descriptor.equals("F")) {
|
||||
equals.visitMethodInsn(
|
||||
Opcodes.INVOKESTATIC,
|
||||
Type.getInternalName(Float.class),
|
||||
"equals",
|
||||
"(FF)Z",
|
||||
false
|
||||
);
|
||||
} else if (component.descriptor.equals("D")) {
|
||||
equals.visitMethodInsn(
|
||||
Opcodes.INVOKESTATIC,
|
||||
Type.getInternalName(Double.class),
|
||||
"equals",
|
||||
"(DD)Z",
|
||||
false
|
||||
);
|
||||
} else if (component.descriptor.equals("J")) {
|
||||
equals.visitInsn(Opcodes.LCMP);
|
||||
} else {
|
||||
throw new AssertionError("Unknown descriptor " + component.descriptor);
|
||||
}
|
||||
equals.visitJumpInsn(Opcodes.IFNE, notEqualLabel);
|
||||
}
|
||||
equals.visitInsn(Opcodes.ICONST_1);
|
||||
equals.visitInsn(Opcodes.IRETURN);
|
||||
equals.visitLabel(notEqualLabel);
|
||||
equals.visitInsn(Opcodes.ICONST_0);
|
||||
equals.visitInsn(Opcodes.IRETURN);
|
||||
|
||||
equals.visitEnd();
|
||||
}
|
||||
|
||||
node.methods.remove(ASMUtils.getMethod(node, "hashCode", HASHCODE_DESC));
|
||||
final MethodVisitor hashCode = node.visitMethod(Opcodes.ACC_PUBLIC, "hashCode", HASHCODE_DESC, null, null);
|
||||
{
|
||||
hashCode.visitCode();
|
||||
|
||||
hashCode.visitInsn(Opcodes.ICONST_0);
|
||||
for (final RecordComponentNode component : node.recordComponents) {
|
||||
hashCode.visitIntInsn(Opcodes.BIPUSH, 31);
|
||||
hashCode.visitInsn(Opcodes.IMUL);
|
||||
hashCode.visitVarInsn(Opcodes.ALOAD, 0);
|
||||
hashCode.visitFieldInsn(Opcodes.GETFIELD, node.name, component.name, component.descriptor);
|
||||
final String owner = PRIMITIVE_WRAPPERS.get(component.descriptor);
|
||||
hashCode.visitMethodInsn(
|
||||
Opcodes.INVOKESTATIC,
|
||||
owner != null ? owner : "java/util/Objects",
|
||||
"hashCode",
|
||||
"(" + (owner != null ? component.descriptor : "Ljava/lang/Object;") + ")I",
|
||||
false
|
||||
);
|
||||
hashCode.visitInsn(Opcodes.IADD);
|
||||
}
|
||||
hashCode.visitInsn(Opcodes.IRETURN);
|
||||
|
||||
hashCode.visitEnd();
|
||||
}
|
||||
|
||||
node.methods.remove(ASMUtils.getMethod(node, "toString", TOSTRING_DESC));
|
||||
final MethodVisitor toString = node.visitMethod(Opcodes.ACC_PUBLIC, "toString", TOSTRING_DESC, null, null);
|
||||
{
|
||||
toString.visitCode();
|
||||
|
||||
final StringBuilder formatString = new StringBuilder("%s[");
|
||||
for (int i = 0; i < node.recordComponents.size(); i++) {
|
||||
formatString.append(node.recordComponents.get(i).name).append("=%s");
|
||||
if (i != node.recordComponents.size() - 1) {
|
||||
formatString.append(", ");
|
||||
}
|
||||
}
|
||||
formatString.append(']');
|
||||
|
||||
toString.visitLdcInsn(formatString.toString());
|
||||
toString.visitIntInsn(Opcodes.SIPUSH, node.recordComponents.size() + 1);
|
||||
toString.visitTypeInsn(Opcodes.ANEWARRAY, "java/lang/Object");
|
||||
toString.visitInsn(Opcodes.DUP);
|
||||
toString.visitInsn(Opcodes.ICONST_0);
|
||||
toString.visitVarInsn(Opcodes.ALOAD, 0);
|
||||
toString.visitMethodInsn(
|
||||
Opcodes.INVOKEVIRTUAL,
|
||||
"java/lang/Object",
|
||||
"getClass",
|
||||
"()Ljava/lang/Class;",
|
||||
false
|
||||
);
|
||||
toString.visitMethodInsn(
|
||||
Opcodes.INVOKEVIRTUAL,
|
||||
"java/lang/Class",
|
||||
"getSimpleName",
|
||||
"()Ljava/lang/String;",
|
||||
false
|
||||
);
|
||||
toString.visitInsn(Opcodes.AASTORE);
|
||||
int i = 1;
|
||||
for (final RecordComponentNode component : node.recordComponents) {
|
||||
toString.visitInsn(Opcodes.DUP);
|
||||
toString.visitIntInsn(Opcodes.SIPUSH, i);
|
||||
toString.visitVarInsn(Opcodes.ALOAD, 0);
|
||||
toString.visitFieldInsn(Opcodes.GETFIELD, node.name, component.name, component.descriptor);
|
||||
final String owner = PRIMITIVE_WRAPPERS.get(component.descriptor);
|
||||
toString.visitMethodInsn(
|
||||
Opcodes.INVOKESTATIC,
|
||||
owner != null ? owner : "java/util/Objects",
|
||||
"toString",
|
||||
"(" + (owner != null ? component.descriptor : "Ljava/lang/Object;") + ")Ljava/lang/String;",
|
||||
false
|
||||
);
|
||||
toString.visitInsn(Opcodes.AASTORE);
|
||||
i++;
|
||||
}
|
||||
toString.visitMethodInsn(
|
||||
Opcodes.INVOKESTATIC,
|
||||
"java/lang/String",
|
||||
"format",
|
||||
"(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;",
|
||||
false
|
||||
);
|
||||
toString.visitInsn(Opcodes.ARETURN);
|
||||
|
||||
toString.visitEnd();
|
||||
}
|
||||
}
|
||||
|
||||
private int count(final String s, final char search) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user