Example usage for org.objectweb.asm MethodVisitor visitLdcInsn

List of usage examples for org.objectweb.asm MethodVisitor visitLdcInsn

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitLdcInsn.

Prototype

public void visitLdcInsn(final Object value)

Source Link

Document

Visits a LDC instruction.

Usage

From source file:jerl.bcm.inj.impl.InjectCollection.java

License:Apache License

public void injectMemberFieldArraySystemOut(MethodVisitor mv, String clazz, String field, String type,
        String printType, String prefix, boolean isStatic, int index) {
    mv.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    mv.visitLdcInsn(prefix);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V");

    mv.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    if (isStatic) {
        mv.visitFieldInsn(Opcodes.GETSTATIC, clazz, field, type);
    } else {/*from   w  ww  .  j av a 2 s .c  om*/
        mv.visitVarInsn(Opcodes.ALOAD, 0); // this
        mv.visitFieldInsn(Opcodes.GETFIELD, clazz, field, type);
    }
    mv.visitLdcInsn(new Integer(index));

    if (type.endsWith("[Z") || type.endsWith("[B")) {
        mv.visitInsn(Opcodes.BALOAD);
    } else if (type.endsWith("[C")) {
        mv.visitInsn(Opcodes.CALOAD);
    } else if (type.endsWith("[D")) {
        mv.visitInsn(Opcodes.DALOAD);
    } else if (type.endsWith("[F")) {
        mv.visitInsn(Opcodes.FALOAD);
    } else if (type.endsWith("[I")) {
        mv.visitInsn(Opcodes.IALOAD);
    } else if (type.endsWith("[J")) {
        mv.visitInsn(Opcodes.LALOAD);
    } else if (type.endsWith("[S")) {
        mv.visitInsn(Opcodes.SALOAD);
    } else {
        mv.visitInsn(Opcodes.AALOAD);
    }
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "println", "(" + printType + ")V");
}

From source file:jerl.bcm.inj.impl.InjectCollection.java

License:Apache License

public void injectSystemOutCurThread(MethodVisitor mv, String str) {
    mv.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    mv.visitLdcInsn(str);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V");

    mv.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/Thread", "currentThread", "()Ljava/lang/Thread;");
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V");
}

From source file:jerl.bcm.inj.impl.InjectCollection.java

License:Apache License

public void injectRegister(MethodVisitor mv, int id) {
    mv.visitLdcInsn(new Integer(id));
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, "jerl/bcm/util/Register", "register", "(I)V");
}

From source file:jerl.bcm.inj.impl.InjectCollection.java

License:Apache License

public void injectReplaceStackInt(MethodVisitor mv, int i) {
    mv.visitInsn(Opcodes.POP);//from www  . j  a  v  a  2s.  c  o m
    mv.visitLdcInsn(new Integer(i));
}

From source file:jerl.semc.MethodEntryLog.java

License:Apache License

public static void injectSEMCLogging(MethodVisitor mv, String logMsg, String className) {
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, FieldAddSEMCLog.LOG_FIELD_NAME,
            "L" + FieldAddSEMCLog.LOG_CLASS_NAME + ";");
    mv.visitLdcInsn(logMsg);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, FieldAddSEMCLog.LOG_CLASS_NAME, "trace", "(Ljava/lang/String;)V");
}

From source file:jerl.semc.MethodEntrySEMCInitLog.java

License:Apache License

@Override
public void inject(MethodVisitor mv) {
    mv.visitLdcInsn(Type.getType("L" + className + ";"));
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, FieldAddSEMCLog.LOG_CLASS_NAME, "getLogger",
            "(Ljava/lang/Class;)L" + FieldAddSEMCLog.LOG_CLASS_NAME + ";");
    mv.visitFieldInsn(Opcodes.PUTSTATIC, className, FieldAddSEMCLog.LOG_FIELD_NAME,
            "L" + FieldAddSEMCLog.LOG_CLASS_NAME + ";");
}

From source file:jpcsp.Allegrex.compiler.CompilerContext.java

License:Open Source License

public void visitLogInfo(MethodVisitor mv, String message) {
    mv.visitLdcInsn(message);
    mv.visitMethodInsn(Opcodes.INVOKESTATIC, runtimeContextInternalName, RuntimeContext.logInfo,
            "(" + stringDescriptor + ")V");
}

From source file:kilim.analysis.CallWeaver.java

License:Open Source License

private void loadConstant(MethodVisitor mv, Value v) {
    if (v.getTypeDesc() == D_NULL) {
        mv.visitInsn(ACONST_NULL);//from   ww w  . j av  a  2s .  com
        return;
    }
    Object c = v.getConstVal();
    if (c instanceof Integer) {
        int i = (Integer) c;
        if (i > -1 && i <= 5) {
            mv.visitInsn(i + 1 + ICONST_M1);
            return;
        } else if (i >= Byte.MIN_VALUE && i <= Byte.MAX_VALUE) {
            mv.visitIntInsn(BIPUSH, i);
            return;
        } else if (i >= Short.MIN_VALUE && i <= Short.MAX_VALUE) {
            mv.visitIntInsn(SIPUSH, i);
            return;
        }
    } else if (c instanceof Float) {
        Float f = ((Float) c).floatValue();
        int insn = 0;
        if (f == 0.0)
            insn = FCONST_0;
        else if (f == 1.0)
            insn = FCONST_1;
        else if (f == 2.0)
            insn = FCONST_2;
        if (insn != 0) {
            mv.visitInsn(insn);
            return;
        }
    } else if (c instanceof Long) {
        Long l = ((Long) c).longValue();
        int insn = 0;
        if (l == 0L)
            insn = LCONST_0;
        else if (l == 1L)
            insn = LCONST_1;
        if (insn != 0) {
            mv.visitInsn(insn);
            return;
        }
    } else if (c instanceof Double) {
        Double d = ((Double) c).doubleValue();
        int insn = 0;
        if (d == 0.0)
            insn = DCONST_0;
        else if (d == 1.0)
            insn = DCONST_1;
        if (insn != 0) {
            mv.visitInsn(insn);
            return;
        }
    }
    // No special constants found.
    mv.visitLdcInsn(c);
}

From source file:kr.debop4j.core.reflect.ConstructorAccess.java

License:Apache License

/** inner ?  */
static void insertNewInstanceInner(ClassWriter cw, String classNameInternal,
        String enclosingClassNameInternal) {
    MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "newInstance", "(Ljava/lang/Object;)Ljava/lang/Object;", null,
            null);//from w ww.  j  a  v  a  2s.  c o m
    mv.visitCode();
    if (enclosingClassNameInternal != null) {
        mv.visitTypeInsn(NEW, classNameInternal);
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, enclosingClassNameInternal);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
        mv.visitInsn(POP);
        mv.visitMethodInsn(INVOKESPECIAL, classNameInternal, "<init>",
                "(L" + enclosingClassNameInternal + ";)V");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(4, 2);
    } else {
        mv.visitTypeInsn(NEW, "java/lang/UnsupportedOperationException");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("Not an inner class.");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/UnsupportedOperationException", "<init>",
                "(Ljava/lang/String;)V");
        mv.visitInsn(ATHROW);
        mv.visitMaxs(3, 2);
    }
    mv.visitEnd();
}

From source file:kr.debop4j.core.reflect.FieldAccess.java

License:Apache License

static private MethodVisitor insertThrowExceptionForFieldNotFound(MethodVisitor mv) {
    mv.visitTypeInsn(NEW, "java/lang/IllegalArgumentException");
    mv.visitInsn(DUP);/* www.  j a v a 2  s  .c  o m*/
    mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
    mv.visitInsn(DUP);
    mv.visitLdcInsn("Field not found: ");
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V");
    mv.visitVarInsn(ILOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(I)Ljava/lang/StringBuilder;");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;");
    mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalArgumentException", "<init>", "(Ljava/lang/String;)V");
    mv.visitInsn(ATHROW);
    return mv;
}