diff options
Diffstat (limited to 'src/main/javassist/bytecode/Bytecode.java')
| -rw-r--r-- | src/main/javassist/bytecode/Bytecode.java | 115 |
1 files changed, 101 insertions, 14 deletions
diff --git a/src/main/javassist/bytecode/Bytecode.java b/src/main/javassist/bytecode/Bytecode.java index 92fd1f0..37a6d12 100644 --- a/src/main/javassist/bytecode/Bytecode.java +++ b/src/main/javassist/bytecode/Bytecode.java @@ -1,11 +1,12 @@ /* * Javassist, a Java-bytecode translator toolkit. - * Copyright (C) 1999-2007 Shigeru Chiba. All Rights Reserved. + * Copyright (C) 1999- Shigeru Chiba. All Rights Reserved. * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. Alternatively, the contents of this file may be used under - * the terms of the GNU Lesser General Public License Version 2.1 or later. + * the terms of the GNU Lesser General Public License Version 2.1 or later, + * or the Apache License Version 2.0. * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License @@ -27,6 +28,7 @@ class ByteVector implements Cloneable { size = 0; } + @Override public Object clone() throws CloneNotSupportedException { ByteVector bv = (ByteVector)super.clone(); bv.buffer = (byte[])buffer.clone(); @@ -95,17 +97,19 @@ class ByteVector implements Cloneable { * <p>A <code>Bytecode</code> object is an unbounded array * containing bytecode. For example, * - * <ul><pre>ConstPool cp = ...; // constant pool table + * <pre> + * ConstPool cp = ...; // constant pool table * Bytecode b = new Bytecode(cp, 1, 0); * b.addIconst(3); * b.addReturn(CtClass.intType); - * CodeAttribute ca = b.toCodeAttribute();</ul></pre> + * CodeAttribute ca = b.toCodeAttribute();</pre> * * <p>This program produces a Code attribute including a bytecode * sequence: * - * <ul><pre>iconst_3 - * ireturn</pre></ul> + * <pre> + * iconst_3 + * ireturn</pre> * * @see ConstPool * @see CodeAttribute @@ -161,6 +165,7 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * The constant pool object is shared between this object * and the cloned object. */ + @Override public Object clone() { try { Bytecode bc = (Bytecode)super.clone(); @@ -322,6 +327,7 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * * @throws ArrayIndexOutOfBoundsException if offset is invalid. */ + @Override public int read(int offset) { return super.read(offset); } @@ -352,6 +358,7 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * * @throws ArrayIndexOutOfBoundsException if offset is invalid. */ + @Override public void write(int offset, int value) { super.write(offset, value); } @@ -377,6 +384,7 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { /** * Appends an 8bit value to the end of the bytecode sequence. */ + @Override public void add(int code) { super.add(code); } @@ -393,6 +401,7 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * * @param length the gap length in byte. */ + @Override public void addGap(int length) { super.addGap(length); } @@ -923,11 +932,14 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * @see Descriptor#ofConstructor(CtClass[]) */ public void addInvokespecial(CtClass clazz, String name, String desc) { - addInvokespecial(constPool.addClassInfo(clazz), name, desc); + boolean isInterface = clazz == null ? false : clazz.isInterface(); + addInvokespecial(isInterface, + constPool.addClassInfo(clazz), name, desc); } /** - * Appends INVOKESPECIAL. + * Appends INVOKESPECIAL. The invoked method must not be a default + * method declared in an interface. * * @param clazz the fully-qualified class name. * @param name the method name @@ -937,11 +949,12 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * @see Descriptor#ofConstructor(CtClass[]) */ public void addInvokespecial(String clazz, String name, String desc) { - addInvokespecial(constPool.addClassInfo(clazz), name, desc); + addInvokespecial(false, constPool.addClassInfo(clazz), name, desc); } /** - * Appends INVOKESPECIAL. + * Appends INVOKESPECIAL. The invoked method must not be a default + * method declared in an interface. * * @param clazz the index of <code>CONSTANT_Class_info</code> * structure. @@ -952,8 +965,45 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * @see Descriptor#ofConstructor(CtClass[]) */ public void addInvokespecial(int clazz, String name, String desc) { + addInvokespecial(false, clazz, name, desc); + } + + /** + * Appends INVOKESPECIAL. + * + * @param isInterface true if the invoked method is a default method + * declared in an interface. + * @param clazz the index of <code>CONSTANT_Class_info</code> + * structure. + * @param name the method name + * @param desc the descriptor of the method signature. + * + * @see Descriptor#ofMethod(CtClass,CtClass[]) + * @see Descriptor#ofConstructor(CtClass[]) + */ + public void addInvokespecial(boolean isInterface, int clazz, String name, String desc) { + int index; + if (isInterface) + index = constPool.addInterfaceMethodrefInfo(clazz, name, desc); + else + index = constPool.addMethodrefInfo(clazz, name, desc); + + addInvokespecial(index, desc); + } + + /** + * Appends INVOKESPECIAL. + * + * @param index the index of <code>CONSTANT_Methodref_info</code> + * or <code>CONSTANT_InterfaceMethodref_info</code> + * @param desc the descriptor of the method signature. + * + * @see Descriptor#ofMethod(CtClass,CtClass[]) + * @see Descriptor#ofConstructor(CtClass[]) + */ + public void addInvokespecial(int index, String desc) { add(INVOKESPECIAL); - addIndex(constPool.addMethodrefInfo(clazz, name, desc)); + addIndex(index); growStack(Descriptor.dataSize(desc) - 1); } @@ -981,13 +1031,20 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * @see Descriptor#ofMethod(CtClass,CtClass[]) */ public void addInvokestatic(CtClass clazz, String name, String desc) { - addInvokestatic(constPool.addClassInfo(clazz), name, desc); + boolean isInterface; + if (clazz == THIS) + isInterface = false; + else + isInterface = clazz.isInterface(); + + addInvokestatic(constPool.addClassInfo(clazz), name, desc, isInterface); } /** * Appends INVOKESTATIC. * * @param classname the fully-qualified class name. + * It must not be an interface-type name. * @param name the method name * @param desc the descriptor of the method signature. * @@ -1001,15 +1058,26 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { * Appends INVOKESTATIC. * * @param clazz the index of <code>CONSTANT_Class_info</code> - * structure. + * structure. It must not be an interface type. * @param name the method name * @param desc the descriptor of the method signature. * * @see Descriptor#ofMethod(CtClass,CtClass[]) */ public void addInvokestatic(int clazz, String name, String desc) { + addInvokestatic(clazz, name, desc, false); + } + + private void addInvokestatic(int clazz, String name, String desc, + boolean isInterface) { add(INVOKESTATIC); - addIndex(constPool.addMethodrefInfo(clazz, name, desc)); + int index; + if (isInterface) + index = constPool.addInterfaceMethodrefInfo(clazz, name, desc); + else + index = constPool.addMethodrefInfo(clazz, name, desc); + + addIndex(index); growStack(Descriptor.dataSize(desc)); } @@ -1154,6 +1222,25 @@ public class Bytecode extends ByteVector implements Cloneable, Opcode { } /** + * Appends INVOKEDYNAMIC. + * + * @param bootstrap an index into the <code>bootstrap_methods</code> array + * of the bootstrap method table. + * @param name the method name. + * @param desc the method descriptor. + * @see Descriptor#ofMethod(CtClass,CtClass[]) + * @since 3.17 + */ + public void addInvokedynamic(int bootstrap, String name, String desc) { + int nt = constPool.addNameAndTypeInfo(name, desc); + int dyn = constPool.addInvokeDynamicInfo(bootstrap, nt); + add(INVOKEDYNAMIC); + addIndex(dyn); + add(0, 0); + growStack(Descriptor.dataSize(desc)); // assume ConstPool#REF_invokeStatic + } + + /** * Appends LDC or LDC_W. The pushed item is a <code>String</code> * object. * |