Java Code Examples for jdk.internal.org.objectweb.asm.MethodVisitor
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jdk.internal.org.objectweb.asm.MethodVisitor. These examples are extracted from open source projects.
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Example 1
Source Project: openjdk-jdk8u Source File: TestConcreteClassWithAbstractMethod.java License: GNU General Public License v2.0 | 6 votes |
public static byte[] dumpT2() { ClassWriter cw = new ClassWriter(0); MethodVisitor mv; cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T2", null, "p1/T1", null); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "p1/T1", "<init>", "()V", false); mv.visitInsn(RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, null); mv.visitEnd(); } cw.visitEnd(); return cw.toByteArray(); }
Example 2
Source Project: nashorn Source File: NullVisitor.java License: GNU General Public License v2.0 | 6 votes |
@Override public MethodVisitor visitMethod( final int access, final String name, final String desc, final String signature, final String[] exceptions) { return new MethodVisitor(Opcodes.ASM4) { @Override public AnnotationVisitor visitAnnotationDefault() { return new NullAnnotationVisitor(); } @Override public AnnotationVisitor visitAnnotation(final String descriptor, final boolean visible) { return new NullAnnotationVisitor(); } }; }
Example 3
Source Project: openjdk-8 Source File: FrameNode.java License: GNU General Public License v2.0 | 6 votes |
/** * Makes the given visitor visit this stack map frame. * * @param mv * a method visitor. */ @Override public void accept(final MethodVisitor mv) { switch (type) { case Opcodes.F_NEW: case Opcodes.F_FULL: mv.visitFrame(type, local.size(), asArray(local), stack.size(), asArray(stack)); break; case Opcodes.F_APPEND: mv.visitFrame(type, local.size(), asArray(local), 0, null); break; case Opcodes.F_CHOP: mv.visitFrame(type, local.size(), null, 0, null); break; case Opcodes.F_SAME: mv.visitFrame(type, 0, null, 0, null); break; case Opcodes.F_SAME1: mv.visitFrame(type, 0, null, 1, asArray(stack)); break; } }
Example 4
Source Project: hottub Source File: Type.java License: GNU General Public License v2.0 | 6 votes |
private static Type dup(final MethodVisitor method, final Type type, final int depth) { final boolean cat2 = type.isCategory2(); switch (depth) { case 0: method.visitInsn(cat2 ? DUP2 : DUP); break; case 1: method.visitInsn(cat2 ? DUP2_X1 : DUP_X1); break; case 2: method.visitInsn(cat2 ? DUP2_X2 : DUP_X2); break; default: return null; //invalid depth } return type; }
Example 5
Source Project: jdk8u-jdk Source File: LookupSwitchInsnNode.java License: GNU General Public License v2.0 | 5 votes |
@Override public void accept(final MethodVisitor mv) { int[] keys = new int[this.keys.size()]; for (int i = 0; i < keys.length; ++i) { keys[i] = this.keys.get(i).intValue(); } Label[] labels = new Label[this.labels.size()]; for (int i = 0; i < labels.length; ++i) { labels[i] = this.labels.get(i).getLabel(); } mv.visitLookupSwitchInsn(dflt.getLabel(), keys, labels); acceptAnnotations(mv); }
Example 6
Source Project: openjdk-8 Source File: ClassGenerator.java License: GNU General Public License v2.0 | 5 votes |
static MethodGenerator makeConstructor(final ClassVisitor cv) { final int access = 0; final String name = INIT; final String desc = DEFAULT_INIT_DESC; final MethodVisitor mv = cv.visitMethod(access, name, desc, null, null); return new MethodGenerator(mv, access, name, desc); }
Example 7
Source Project: TencentKona-8 Source File: ClassEmitter.java License: GNU General Public License v2.0 | 5 votes |
/** * Add a new method to the class, representing a rest-of version of the * function node. * * @param functionNode the function node to generate a method for * * @return method emitter to use for weaving this method */ MethodEmitter restOfMethod(final FunctionNode functionNode) { methodCount++; methodNames.add(functionNode.getName()); final MethodVisitor mv = cw.visitMethod( ACC_PUBLIC | ACC_STATIC, functionNode.getName(), Type.getMethodDescriptor(functionNode.getReturnType().getTypeClass(), RewriteException.class), null, null); return new MethodEmitter(this, mv, functionNode); }
Example 8
Source Project: openjdk-jdk8u Source File: IntType.java License: GNU General Public License v2.0 | 5 votes |
@Override public Type div(final MethodVisitor method, final int programPoint) { if (programPoint == INVALID_PROGRAM_POINT) { JSType.DIV_ZERO.invoke(method); } else { method.visitInvokeDynamicInsn("idiv", "(II)I", MATHBOOTSTRAP, programPoint); } return INT; }
Example 9
Source Project: openjdk-8 Source File: TestPrivateInterfaceMethodReflect.java License: GNU General Public License v2.0 | 5 votes |
private byte[] loadClassData(String name) throws Exception { ClassWriter cw = new ClassWriter(0); MethodVisitor mv; switch (name) { case INTERFACE_NAME: cw.visit(V1_8, ACC_ABSTRACT | ACC_INTERFACE | ACC_PUBLIC, INTERFACE_NAME, null, "java/lang/Object", null); { mv = cw.visitMethod(ACC_PRIVATE, "privInstance", "()I", null, null); mv.visitCode(); mv.visitLdcInsn(EXPECTED); mv.visitInsn(IRETURN); mv.visitMaxs(1, 1); mv.visitEnd(); } break; case CLASS_NAME: cw.visit(52, ACC_SUPER | ACC_PUBLIC, CLASS_NAME, null, "java/lang/Object", new String[]{INTERFACE_NAME}); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V"); mv.visitInsn(RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); } break; default: break; } cw.visitEnd(); return cw.toByteArray(); }
Example 10
Source Project: jdk8u-jdk Source File: BoundMethodHandle.java License: GNU General Public License v2.0 | 5 votes |
private static void emitPushFields(String types, String className, MethodVisitor mv) { for (int i = 0; i < types.length(); ++i) { char tc = types.charAt(i); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, className, makeFieldName(types, i), typeSig(tc)); } }
Example 11
Source Project: TencentKona-8 Source File: BooleanType.java License: GNU General Public License v2.0 | 5 votes |
@Override public Type add(final MethodVisitor method, final int programPoint) { // Adding booleans in JavaScript is perfectly valid, they add as if false=0 and true=1 if(programPoint == INVALID_PROGRAM_POINT) { method.visitInsn(IADD); } else { method.visitInvokeDynamicInsn("iadd", "(II)I", MATHBOOTSTRAP, programPoint); } return INT; }
Example 12
Source Project: jdk8u_jdk Source File: BoundMethodHandle.java License: GNU General Public License v2.0 | 5 votes |
private static void emitPushFields(String types, String className, MethodVisitor mv) { for (int i = 0; i < types.length(); ++i) { char tc = types.charAt(i); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, className, makeFieldName(types, i), typeSig(tc)); } }
Example 13
Source Project: openjdk-jdk9 Source File: ClassGenerator.java License: GNU General Public License v2.0 | 5 votes |
static MethodGenerator makeConstructor(final ClassVisitor cv) { final int access = 0; final String name = INIT; final String desc = DEFAULT_INIT_DESC; final MethodVisitor mv = cv.visitMethod(access, name, desc, null, null); return new MethodGenerator(mv, access, name, desc); }
Example 14
Source Project: Bytecoder Source File: InsnList.java License: Apache License 2.0 | 5 votes |
/** * Makes the given visitor visit all the instructions in this list. * * @param methodVisitor the method visitor that must visit the instructions. */ public void accept(final MethodVisitor methodVisitor) { AbstractInsnNode currentInsn = firstInsn; while (currentInsn != null) { currentInsn.accept(methodVisitor); currentInsn = currentInsn.nextInsn; } }
Example 15
Source Project: hottub Source File: IntType.java License: GNU General Public License v2.0 | 5 votes |
@Override public Type add(final MethodVisitor method, final int programPoint) { if(programPoint == INVALID_PROGRAM_POINT) { method.visitInsn(IADD); } else { method.visitInvokeDynamicInsn("iadd", "(II)I", MATHBOOTSTRAP, programPoint); } return INT; }
Example 16
Source Project: jdk8u-jdk Source File: InsnList.java License: GNU General Public License v2.0 | 5 votes |
/** * Makes the given visitor visit all of the instructions in this list. * * @param mv * the method visitor that must visit the instructions. */ public void accept(final MethodVisitor mv) { AbstractInsnNode insn = first; while (insn != null) { insn.accept(mv); insn = insn.next; } }
Example 17
Source Project: Bytecoder Source File: AddressVarHandleGenerator.java License: Apache License 2.0 | 5 votes |
void addCarrierAccessor(BinderClassWriter cw) { MethodVisitor mv = cw.visitMethod(ACC_FINAL, "carrier", "()Ljava/lang/Class;", null, null); mv.visitCode(); mv.visitLdcInsn(cw.makeConstantPoolPatch(carrier)); mv.visitTypeInsn(CHECKCAST, Type.getInternalName(Class.class)); mv.visitInsn(ARETURN); mv.visitMaxs(0, 0); mv.visitEnd(); }
Example 18
Source Project: nashorn Source File: LocalVariablesSorter.java License: GNU General Public License v2.0 | 5 votes |
/** * Creates a new {@link LocalVariablesSorter}. * * @param api the ASM API version implemented by this visitor. Must be one * of {@link Opcodes#ASM4}. * @param access access flags of the adapted method. * @param desc the method's descriptor (see {@link Type Type}). * @param mv the method visitor to which this adapter delegates calls. */ protected LocalVariablesSorter( final int api, final int access, final String desc, final MethodVisitor mv) { super(api, mv); Type[] args = Type.getArgumentTypes(desc); nextLocal = (Opcodes.ACC_STATIC & access) == 0 ? 1 : 0; for (int i = 0; i < args.length; i++) { nextLocal += args[i].getSize(); } firstLocal = nextLocal; }
Example 19
Source Project: TencentKona-8 Source File: RedefineRunningMethodsWithResolutionErrors.java License: GNU General Public License v2.0 | 5 votes |
private static byte[] loadC(boolean redefine) { ClassWriter cw = new ClassWriter(0); cw.visit(52, ACC_SUPER | ACC_PUBLIC, "C", null, "java/lang/Object", null); { MethodVisitor mv; mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "m", "()V", null, null); mv.visitCode(); // First time we run we will: // 1) Cache resolution errors // 2) Redefine the class / method // 3) Try to read the resolution errors that were cached // // The redefined method will never run, throw error to be sure if (redefine) { createThrowRuntimeExceptionCode(mv, "The redefined method was called"); } else { createMethodBody(mv); } mv.visitMaxs(3, 0); mv.visitEnd(); } cw.visitEnd(); return cw.toByteArray(); }
Example 20
Source Project: TencentKona-8 Source File: LongType.java License: GNU General Public License v2.0 | 5 votes |
@Override public Type add(final MethodVisitor method, final int programPoint) { if(programPoint == INVALID_PROGRAM_POINT) { method.visitInsn(LADD); } else { method.visitInvokeDynamicInsn("ladd", "(JJ)J", MATHBOOTSTRAP, programPoint); } return LONG; }
Example 21
Source Project: openjdk-8-source Source File: LookupSwitchInsnNode.java License: GNU General Public License v2.0 | 5 votes |
@Override public void accept(final MethodVisitor mv) { int[] keys = new int[this.keys.size()]; for (int i = 0; i < keys.length; ++i) { keys[i] = this.keys.get(i).intValue(); } Label[] labels = new Label[this.labels.size()]; for (int i = 0; i < labels.length; ++i) { labels[i] = this.labels.get(i).getLabel(); } mv.visitLookupSwitchInsn(dflt.getLabel(), keys, labels); acceptAnnotations(mv); }
Example 22
Source Project: hottub Source File: ArrayType.java License: GNU General Public License v2.0 | 4 votes |
@Override public Type load(final MethodVisitor method, final int slot) { assert slot != -1; method.visitVarInsn(ALOAD, slot); return this; }
Example 23
Source Project: TencentKona-8 Source File: Type.java License: GNU General Public License v2.0 | 4 votes |
@Override public Type ldc(final MethodVisitor method, final Object c) { throw new UnsupportedOperationException("ldc " + c); }
Example 24
Source Project: jdk8u60 Source File: TryCatchBlockSorter.java License: GNU General Public License v2.0 | 4 votes |
public TryCatchBlockSorter(final MethodVisitor mv, final int access, final String name, final String desc, final String signature, final String[] exceptions) { this(Opcodes.ASM5, mv, access, name, desc, signature, exceptions); }
Example 25
Source Project: openjdk-jdk9 Source File: MethodRemapper.java License: GNU General Public License v2.0 | 4 votes |
protected MethodRemapper(final int api, final MethodVisitor mv, final Remapper remapper) { super(api, mv); this.remapper = remapper; }
Example 26
Source Project: hottub Source File: NumberType.java License: GNU General Public License v2.0 | 4 votes |
@Override public Type loadUndefined(final MethodVisitor method) { method.visitLdcInsn(UNDEFINED_DOUBLE); return NUMBER; }
Example 27
Source Project: TencentKona-8 Source File: Type.java License: GNU General Public License v2.0 | 4 votes |
@Override public Type loadUndefined(final MethodVisitor method) { throw new UnsupportedOperationException("load undefined"); }
Example 28
Source Project: jdk8u60 Source File: Type.java License: GNU General Public License v2.0 | 4 votes |
@Override public Type newarray(final MethodVisitor method) { method.visitIntInsn(NEWARRAY, T_DOUBLE); return this; }
Example 29
Source Project: openjdk-jdk8u Source File: IntType.java License: GNU General Public License v2.0 | 4 votes |
@Override public Type loadUndefined(final MethodVisitor method) { method.visitLdcInsn(UNDEFINED_INT); return INT; }
Example 30
Source Project: openjdk-jdk8u-backup Source File: LongType.java License: GNU General Public License v2.0 | 4 votes |
@Override public void _return(final MethodVisitor method) { method.visitInsn(LRETURN); }