forked from openrs2/openrs2
parent
ad0cdb6056
commit
2a6b97480c
@ -1,11 +1,36 @@ |
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package org.openrs2.asm.io |
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|
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import io.netty.buffer.ByteBufAllocator |
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import org.objectweb.asm.tree.ClassNode |
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import org.openrs2.asm.packclass.ConstantPool |
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import org.openrs2.asm.packclass.PackClass |
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import org.openrs2.buffer.use |
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import org.openrs2.cache.Js5Pack |
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import java.io.InputStream |
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import javax.inject.Inject |
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import javax.inject.Singleton |
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public object PackClassLibraryReader : LibraryReader { |
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@Singleton |
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public class PackClassLibraryReader @Inject constructor( |
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private val alloc: ByteBufAllocator |
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) : LibraryReader { |
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override fun read(input: InputStream): Iterable<ClassNode> { |
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// TODO(gpe): implement |
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return emptyList() |
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Js5Pack.read(input, alloc).use { pack -> |
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// read constant pool |
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val constantPool = pack.read(PackClass.CONSTANT_POOL_GROUP, PackClass.CONSTANT_POOL_FILE).use { buf -> |
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ConstantPool.read(buf) |
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} |
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|
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// read classes |
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val classes = mutableListOf<ClassNode>() |
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for (entry in pack.list(PackClass.CLASS_GROUP)) { |
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pack.read(PackClass.CLASS_GROUP, entry.id).use { buf -> |
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classes += PackClass.read(buf, constantPool) |
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} |
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} |
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return classes |
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} |
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} |
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} |
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@ -1,11 +1,45 @@ |
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package org.openrs2.asm.io |
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|
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import io.netty.buffer.ByteBufAllocator |
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import org.objectweb.asm.tree.ClassNode |
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import org.openrs2.asm.classpath.ClassPath |
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import org.openrs2.asm.packclass.ConstantPool |
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import org.openrs2.asm.packclass.PackClass |
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import org.openrs2.buffer.use |
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import org.openrs2.cache.Js5Pack |
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import java.io.OutputStream |
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import javax.inject.Inject |
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import javax.inject.Singleton |
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public object PackClassLibraryWriter : LibraryWriter { |
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@Singleton |
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public class PackClassLibraryWriter @Inject constructor( |
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private val alloc: ByteBufAllocator |
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) : LibraryWriter { |
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override fun write(output: OutputStream, classPath: ClassPath, classes: Iterable<ClassNode>) { |
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// TODO(gpe): implement |
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Js5Pack.create(alloc).use { pack -> |
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// create constant pool |
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val builder = ConstantPool.Builder() |
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for (clazz in classes) { |
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builder.add(clazz) |
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} |
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val constantPool = builder.build() |
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|
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// write classes |
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for ((i, clazz) in classes.withIndex()) { |
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alloc.buffer().use { buf -> |
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PackClass.write(buf, constantPool, clazz) |
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pack.write(PackClass.CLASS_GROUP, i, buf) |
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} |
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} |
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|
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// write constant pool |
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alloc.buffer().use { buf -> |
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constantPool.write(buf) |
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pack.write(PackClass.CONSTANT_POOL_GROUP, PackClass.CONSTANT_POOL_FILE, buf) |
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} |
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|
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// write pack |
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pack.write(output) |
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} |
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} |
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} |
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@ -0,0 +1,565 @@ |
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package org.openrs2.asm.packclass |
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import io.netty.buffer.ByteBuf |
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import it.unimi.dsi.fastutil.doubles.DoubleAVLTreeSet |
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import it.unimi.dsi.fastutil.floats.FloatAVLTreeSet |
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import it.unimi.dsi.fastutil.ints.IntAVLTreeSet |
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import it.unimi.dsi.fastutil.longs.LongAVLTreeSet |
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import it.unimi.dsi.fastutil.objects.ObjectAVLTreeSet |
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import org.objectweb.asm.Type |
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import org.objectweb.asm.tree.ClassNode |
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import org.objectweb.asm.tree.FieldInsnNode |
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import org.objectweb.asm.tree.LdcInsnNode |
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import org.objectweb.asm.tree.MethodInsnNode |
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import org.objectweb.asm.tree.MultiANewArrayInsnNode |
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import org.objectweb.asm.tree.TypeInsnNode |
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import org.openrs2.buffer.readString |
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import org.openrs2.buffer.writeString |
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import org.openrs2.util.charset.ModifiedUtf8Charset |
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|
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public class ConstantPool private constructor( |
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private val strings: Array<String>, |
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private val fieldNamesAndTypes: Array<NameAndType>, |
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private val methodNamesAndTypes: Array<NameAndType>, |
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private val fieldRefs: Array<MemberRef>, |
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private val methodRefs: Array<MemberRef>, |
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private val interfaceMethodRefs: Array<MemberRef>, |
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private val ints: IntArray, |
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private val longs: LongArray, |
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private val floats: FloatArray, |
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private val doubles: DoubleArray |
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) { |
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public class Builder { |
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private val strings = ObjectAVLTreeSet<String>() |
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private val fieldNamesAndTypes = ObjectAVLTreeSet<NameAndType>() |
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private val methodNamesAndTypes = ObjectAVLTreeSet<NameAndType>() |
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private val fieldRefs = ObjectAVLTreeSet<MemberRef>() |
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private val methodRefs = ObjectAVLTreeSet<MemberRef>() |
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private val interfaceMethodRefs = ObjectAVLTreeSet<MemberRef>() |
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private val ints = IntAVLTreeSet() |
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private val longs = LongAVLTreeSet() |
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private val floats = FloatAVLTreeSet() |
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private val doubles = DoubleAVLTreeSet() |
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public fun add(clazz: ClassNode): Builder { |
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if (clazz.sourceFile != null) { |
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strings += clazz.sourceFile |
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} |
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strings += clazz.name |
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strings += clazz.superName |
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strings.addAll(clazz.interfaces) |
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for (method in clazz.methods) { |
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addMethodNameAndType(NameAndType(method.name, method.desc)) |
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strings += method.exceptions |
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for (tryCatch in method.tryCatchBlocks) { |
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if (tryCatch.type != null) { |
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strings += tryCatch.type |
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} |
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} |
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for (insn in method.instructions) { |
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when (insn) { |
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is LdcInsnNode -> addConstant(insn.cst) |
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is MultiANewArrayInsnNode -> strings += insn.desc |
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is MethodInsnNode -> { |
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val methodRef = MemberRef(insn.owner, insn.name, insn.desc) |
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if (insn.itf) { |
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addInterfaceMethodRef(methodRef) |
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} else { |
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addMethodRef(methodRef) |
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} |
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} |
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is FieldInsnNode -> addFieldRef(MemberRef(insn.owner, insn.name, insn.desc)) |
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is TypeInsnNode -> strings += insn.desc |
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} |
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} |
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} |
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for (field in clazz.fields) { |
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addFieldNameAndType(NameAndType(field.name, field.desc)) |
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if (field.value != null) { |
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addConstant(field.value) |
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} |
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} |
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return this |
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} |
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private fun addFieldNameAndType(nameAndType: NameAndType) { |
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strings += nameAndType.name |
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strings += nameAndType.descriptor |
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fieldNamesAndTypes += nameAndType |
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} |
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private fun addMethodNameAndType(nameAndType: NameAndType) { |
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strings += nameAndType.name |
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strings += nameAndType.descriptor |
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methodNamesAndTypes += nameAndType |
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} |
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private fun addFieldRef(fieldRef: MemberRef) { |
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strings += fieldRef.clazz |
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addFieldNameAndType(fieldRef.nameAndType) |
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fieldRefs += fieldRef |
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} |
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private fun addMethodRef(methodRef: MemberRef) { |
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strings += methodRef.clazz |
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addMethodNameAndType(methodRef.nameAndType) |
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methodRefs += methodRef |
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} |
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private fun addInterfaceMethodRef(methodRef: MemberRef) { |
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strings += methodRef.clazz |
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addMethodNameAndType(methodRef.nameAndType) |
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interfaceMethodRefs += methodRef |
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} |
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private fun addConstant(value: Any) { |
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when (value) { |
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is Int -> ints += value |
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is Long -> longs += value |
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is Float -> floats += value |
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is Double -> doubles += value |
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is String -> strings += value |
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is Type -> { |
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if (value.sort == Type.OBJECT) { |
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strings += value.internalName |
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} else { |
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throw IllegalArgumentException("Unsupported constant type: ${value.sort}") |
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} |
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} |
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else -> throw IllegalArgumentException("Unsupported constant type: ${value.javaClass.name}") |
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} |
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} |
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public fun build(): ConstantPool { |
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strings.remove(CODE) |
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strings.remove(EXCEPTIONS) |
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strings.remove(SYNTHETIC) |
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strings.remove(CONSTANT_VALUE) |
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strings.remove(SOURCE_FILE) |
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strings.remove(LINE_NUMBER_TABLE) |
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val it = strings.iterator() |
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val stringArray = Array(6 + strings.size) { i -> |
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when (i) { |
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0 -> CODE |
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1 -> EXCEPTIONS |
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2 -> SYNTHETIC |
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3 -> CONSTANT_VALUE |
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4 -> SOURCE_FILE |
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5 -> LINE_NUMBER_TABLE |
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else -> it.next() |
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} |
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} |
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return ConstantPool( |
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stringArray, |
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fieldNamesAndTypes.toTypedArray(), |
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methodNamesAndTypes.toTypedArray(), |
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fieldRefs.toTypedArray(), |
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methodRefs.toTypedArray(), |
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interfaceMethodRefs.toTypedArray(), |
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ints.toIntArray(), |
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longs.toLongArray(), |
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floats.toFloatArray(), |
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doubles.toDoubleArray() |
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) |
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} |
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} |
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public fun readString(buf: ByteBuf): String { |
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val index = buf.readUnsignedShort() |
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return strings[index] |
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} |
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private fun getStringIndex(value: String): Int { |
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return when (value) { |
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CODE -> 0 |
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EXCEPTIONS -> 1 |
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SYNTHETIC -> 2 |
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CONSTANT_VALUE -> 3 |
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SOURCE_FILE -> 4 |
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LINE_NUMBER_TABLE -> 5 |
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else -> strings.binarySearch(value, 6) |
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} |
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} |
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public fun writeString(buf: ByteBuf, value: String) { |
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buf.writeShort(getStringIndex(value)) |
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} |
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public fun readOptionalString(buf: ByteBuf): String? { |
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val index = buf.readUnsignedShort() |
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return if (index != 0) { |
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strings[index - 1] |
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} else { |
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null |
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} |
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} |
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public fun writeOptionalString(buf: ByteBuf, value: String?) { |
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if (value != null) { |
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buf.writeShort(getStringIndex(value) + 1) |
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} else { |
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buf.writeShort(0) |
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} |
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} |
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public fun readFieldNameAndType(buf: ByteBuf): NameAndType { |
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val index = buf.readUnsignedShort() |
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return fieldNamesAndTypes[index] |
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} |
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public fun writeFieldNameAndType(buf: ByteBuf, value: NameAndType) { |
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buf.writeShort(fieldNamesAndTypes.binarySearch(value)) |
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} |
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public fun readMethodNameAndType(buf: ByteBuf): NameAndType { |
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val index = buf.readUnsignedShort() |
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return methodNamesAndTypes[index] |
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} |
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public fun writeMethodNameAndType(buf: ByteBuf, value: NameAndType) { |
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buf.writeShort(methodNamesAndTypes.binarySearch(value)) |
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} |
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public fun readFieldRef(buf: ByteBuf): MemberRef { |
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val index = buf.readUnsignedShort() |
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return fieldRefs[index] |
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} |
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public fun writeFieldRef(buf: ByteBuf, value: MemberRef) { |
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buf.writeShort(fieldRefs.binarySearch(value)) |
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} |
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public fun readMethodRef(buf: ByteBuf): MemberRef { |
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val index = buf.readUnsignedShort() |
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return methodRefs[index] |
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} |
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public fun writeMethodRef(buf: ByteBuf, value: MemberRef) { |
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buf.writeShort(methodRefs.binarySearch(value)) |
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} |
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public fun readInterfaceMethodRef(buf: ByteBuf): MemberRef { |
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val index = buf.readUnsignedShort() |
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return interfaceMethodRefs[index] |
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} |
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public fun writeInterfaceMethodRef(buf: ByteBuf, value: MemberRef) { |
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buf.writeShort(interfaceMethodRefs.binarySearch(value)) |
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} |
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public fun readInt(buf: ByteBuf): Int { |
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val index = buf.readUnsignedShort() |
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return ints[index] |
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} |
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public fun writeInt(buf: ByteBuf, value: Int) { |
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buf.writeShort(ints.binarySearch(value)) |
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} |
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public fun readLong(buf: ByteBuf): Long { |
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val index = buf.readUnsignedShort() |
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return longs[index] |
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} |
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public fun writeLong(buf: ByteBuf, value: Long) { |
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buf.writeShort(longs.binarySearch(value)) |
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} |
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public fun readFloat(buf: ByteBuf): Float { |
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val index = buf.readUnsignedShort() |
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return floats[index] |
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} |
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public fun writeFloat(buf: ByteBuf, value: Float) { |
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buf.writeShort(floats.binarySearch(value)) |
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} |
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public fun readDouble(buf: ByteBuf): Double { |
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val index = buf.readUnsignedShort() |
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return doubles[index] |
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} |
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public fun writeDouble(buf: ByteBuf, value: Double) { |
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buf.writeShort(doubles.binarySearch(value)) |
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} |
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public fun write(buf: ByteBuf) { |
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writeStrings(buf) |
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writeNameAndTypeNames(buf, fieldNamesAndTypes) |
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writeNameAndTypeNames(buf, methodNamesAndTypes) |
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writeNameAndTypeDescriptors(buf, fieldNamesAndTypes) |
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writeNameAndTypeDescriptors(buf, methodNamesAndTypes) |
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writeMemberRefClasses(buf, fieldRefs) |
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writeMemberRefClasses(buf, methodRefs) |
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writeMemberRefClasses(buf, interfaceMethodRefs) |
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writeFieldRefNamesAndTypes(buf) |
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writeMethodRefNamesAndTypes(buf, methodRefs) |
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writeMethodRefNamesAndTypes(buf, interfaceMethodRefs) |
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writeInts(buf, ints) |
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writeLongs(buf, longs) |
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writeFloats(buf) |
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writeDoubles(buf) |
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buf.writeShort(strings.size) |
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buf.writeShort(ints.size) |
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buf.writeShort(longs.size) |
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buf.writeShort(floats.size) |
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buf.writeShort(doubles.size) |
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buf.writeShort(fieldNamesAndTypes.size) |
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buf.writeShort(methodNamesAndTypes.size) |
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buf.writeShort(fieldRefs.size) |
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buf.writeShort(methodRefs.size) |
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buf.writeShort(interfaceMethodRefs.size) |
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} |
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private fun writeStrings(buf: ByteBuf) { |
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for (i in 6 until strings.size) { |
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buf.writeString(strings[i], ModifiedUtf8Charset) |
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} |
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} |
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private fun writeNameAndTypeNames(buf: ByteBuf, namesAndTypes: Array<NameAndType>) { |
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for (nameAndType in namesAndTypes) { |
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writeString(buf, nameAndType.name) |
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} |
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} |
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private fun writeNameAndTypeDescriptors(buf: ByteBuf, namesAndTypes: Array<NameAndType>) { |
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for (nameAndType in namesAndTypes) { |
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writeString(buf, nameAndType.descriptor) |
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} |
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} |
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private fun writeMemberRefClasses(buf: ByteBuf, memberRefs: Array<MemberRef>) { |
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for (memberRef in memberRefs) { |
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writeString(buf, memberRef.clazz) |
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} |
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} |
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private fun writeFieldRefNamesAndTypes(buf: ByteBuf) { |
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for (fieldRef in fieldRefs) { |
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writeFieldNameAndType(buf, fieldRef.nameAndType) |
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} |
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} |
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private fun writeMethodRefNamesAndTypes(buf: ByteBuf, methodRefs: Array<MemberRef>) { |
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for (methodRef in methodRefs) { |
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writeMethodNameAndType(buf, methodRef.nameAndType) |
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} |
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} |
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private fun writeInts(buf: ByteBuf, values: IntArray) { |
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for (i in 24 downTo 0 step 8) { |
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var previous = 0 |
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for (value in values) { |
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buf.writeByte((value - previous) shr i) |
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previous = value |
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} |
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} |
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} |
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private fun writeLongs(buf: ByteBuf, values: LongArray) { |
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for (i in 56 downTo 0 step 8) { |
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var previous = 0L |
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for (value in values) { |
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buf.writeByte(((value - previous) shr i).toInt()) |
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previous = value |
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} |
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} |
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} |
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private fun writeFloats(buf: ByteBuf) { |
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writeInts(buf, IntArray(floats.size) { i -> |
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floats[i].toRawBits() |
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}) |
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} |
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private fun writeDoubles(buf: ByteBuf) { |
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writeLongs(buf, LongArray(doubles.size) { i -> |
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doubles[i].toRawBits() |
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}) |
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} |
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public companion object { |
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public const val CODE: String = "Code" |
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public const val EXCEPTIONS: String = "Exceptions" |
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public const val SYNTHETIC: String = "Synthetic" |
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public const val CONSTANT_VALUE: String = "ConstantValue" |
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public const val SOURCE_FILE: String = "SourceFile" |
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public const val LINE_NUMBER_TABLE: String = "LineNumberTable" |
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private const val TRAILER_LEN = 20 |
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|
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public fun read(buf: ByteBuf): ConstantPool { |
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// read trailer |
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buf.markReaderIndex() |
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buf.readerIndex(buf.writerIndex() - TRAILER_LEN) |
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|
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val stringCount = buf.readUnsignedShort() |
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val intCount = buf.readUnsignedShort() |
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val longCount = buf.readUnsignedShort() |
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val floatCount = buf.readUnsignedShort() |
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val doubleCount = buf.readUnsignedShort() |
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val fieldNameAndTypeCount = buf.readUnsignedShort() |
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val methodNameAndTypeCount = buf.readUnsignedShort() |
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val fieldRefCount = buf.readUnsignedShort() |
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val methodRefCount = buf.readUnsignedShort() |
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val interfaceMethodRefCount = buf.readUnsignedShort() |
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|
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buf.resetReaderIndex() |
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|
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// read UTF-8 entries |
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val strings = readStrings(buf, stringCount) |
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|
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// read NameAndType entries |
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val fieldNames = readStringPointers(buf, fieldNameAndTypeCount, strings) |
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val methodNames = readStringPointers(buf, methodNameAndTypeCount, strings) |
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val fieldDescriptors = readStringPointers(buf, fieldNameAndTypeCount, strings) |
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val methodDescriptors = readStringPointers(buf, methodNameAndTypeCount, strings) |
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|
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val fieldNamesAndTypes = createNamesAndTypes(fieldNames, fieldDescriptors) |
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val methodNamesAndTypes = createNamesAndTypes(methodNames, methodDescriptors) |
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|
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// read FieldRef, MethodRef and InterfaceMethodRef entries |
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val fieldRefClasses = readStringPointers(buf, fieldRefCount, strings) |
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val methodRefClasses = readStringPointers(buf, methodRefCount, strings) |
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val interfaceRefMethodClasses = readStringPointers(buf, interfaceMethodRefCount, strings) |
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|
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val fieldRefNamesAndTypes = readNameAndTypePointers(buf, fieldRefCount, fieldNamesAndTypes) |
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val methodRefNamesAndTypes = readNameAndTypePointers(buf, methodRefCount, methodNamesAndTypes) |
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val interfaceMethodRefNamesAndTypes = readNameAndTypePointers( |
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buf, |
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interfaceMethodRefCount, |
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methodNamesAndTypes |
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) |
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|
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val fieldRefs = createMembers(fieldRefClasses, fieldRefNamesAndTypes) |
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val methodRefs = createMembers(methodRefClasses, methodRefNamesAndTypes) |
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val interfaceMethodRefs = createMembers(interfaceRefMethodClasses, interfaceMethodRefNamesAndTypes) |
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|
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// read numeric entries |
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val ints = readInts(buf, intCount) |
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val longs = readLongs(buf, longCount) |
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val floats = readFloats(buf, floatCount) |
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val doubles = readDoubles(buf, doubleCount) |
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|
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// skip trailer |
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buf.skipBytes(TRAILER_LEN) |
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|
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return ConstantPool( |
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strings, |
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fieldNamesAndTypes, |
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methodNamesAndTypes, |
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fieldRefs, |
||||
methodRefs, |
||||
interfaceMethodRefs, |
||||
ints, |
||||
longs, |
||||
floats, |
||||
doubles |
||||
) |
||||
} |
||||
|
||||
private fun readStrings(buf: ByteBuf, size: Int): Array<String> { |
||||
require(size >= 6) |
||||
|
||||
return Array(size) { i -> |
||||
when (i) { |
||||
0 -> CODE |
||||
1 -> EXCEPTIONS |
||||
2 -> SYNTHETIC |
||||
3 -> CONSTANT_VALUE |
||||
4 -> SOURCE_FILE |
||||
5 -> LINE_NUMBER_TABLE |
||||
else -> buf.readString(ModifiedUtf8Charset) |
||||
} |
||||
} |
||||
} |
||||
|
||||
private fun readStringPointers(buf: ByteBuf, size: Int, entries: Array<String>): Array<String> { |
||||
return Array(size) { |
||||
val index = buf.readUnsignedShort() |
||||
entries[index] |
||||
} |
||||
} |
||||
|
||||
private fun createNamesAndTypes(names: Array<String>, descriptors: Array<String>): Array<NameAndType> { |
||||
check(names.size == descriptors.size) |
||||
|
||||
return Array(names.size) { i -> |
||||
NameAndType(names[i], descriptors[i]) |
||||
} |
||||
} |
||||
|
||||
private fun readNameAndTypePointers(buf: ByteBuf, size: Int, entries: Array<NameAndType>): Array<NameAndType> { |
||||
return Array(size) { |
||||
val index = buf.readUnsignedShort() |
||||
entries[index] |
||||
} |
||||
} |
||||
|
||||
private fun createMembers(classes: Array<String>, namesAndTypes: Array<NameAndType>): Array<MemberRef> { |
||||
check(classes.size == namesAndTypes.size) |
||||
|
||||
return Array(classes.size) { i -> |
||||
MemberRef(classes[i], namesAndTypes[i]) |
||||
} |
||||
} |
||||
|
||||
private fun readInts(buf: ByteBuf, size: Int): IntArray { |
||||
val entries = IntArray(size) |
||||
|
||||
for (i in 24 downTo 0 step 8) { |
||||
var accumulator = 0 |
||||
for (j in entries.indices) { |
||||
accumulator += buf.readUnsignedByte().toInt() shl i |
||||
entries[j] += accumulator |
||||
} |
||||
} |
||||
|
||||
return entries |
||||
} |
||||
|
||||
private fun readLongs(buf: ByteBuf, size: Int): LongArray { |
||||
val entries = LongArray(size) |
||||
|
||||
for (i in 56 downTo 0 step 8) { |
||||
var accumulator = 0L |
||||
for (j in entries.indices) { |
||||
accumulator += buf.readUnsignedByte().toLong() shl i |
||||
entries[j] += accumulator |
||||
} |
||||
} |
||||
|
||||
return entries |
||||
} |
||||
|
||||
private fun readFloats(buf: ByteBuf, size: Int): FloatArray { |
||||
val entries = readInts(buf, size) |
||||
return FloatArray(entries.size) { i -> |
||||
Float.fromBits(entries[i]) |
||||
} |
||||
} |
||||
|
||||
private fun readDoubles(buf: ByteBuf, size: Int): DoubleArray { |
||||
val entries = readLongs(buf, size) |
||||
return DoubleArray(entries.size) { i -> |
||||
Double.fromBits(entries[i]) |
||||
} |
||||
} |
||||
} |
||||
} |
@ -0,0 +1,15 @@ |
||||
package org.openrs2.asm.packclass |
||||
|
||||
public data class MemberRef( |
||||
public val clazz: String, |
||||
public val nameAndType: NameAndType |
||||
) : Comparable<MemberRef> { |
||||
public constructor(clazz: String, name: String, descriptor: String) : this(clazz, NameAndType(name, descriptor)) |
||||
|
||||
public val name: String = nameAndType.name |
||||
public val descriptor: String = nameAndType.descriptor |
||||
|
||||
override fun compareTo(other: MemberRef): Int { |
||||
return compareValuesBy(this, other, MemberRef::clazz, MemberRef::nameAndType) |
||||
} |
||||
} |
@ -0,0 +1,10 @@ |
||||
package org.openrs2.asm.packclass |
||||
|
||||
public data class NameAndType( |
||||
public val name: String, |
||||
public val descriptor: String |
||||
) : Comparable<NameAndType> { |
||||
override fun compareTo(other: NameAndType): Int { |
||||
return compareValuesBy(this, other, NameAndType::name, NameAndType::descriptor) |
||||
} |
||||
} |
File diff suppressed because it is too large
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Reference in new issue