Example usage for org.objectweb.asm MethodVisitor visitInsn

Introduction

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

Prototype

public void visitInsn(final int opcode) 

Source Link

Document

Visits a zero operand instruction.

Usage

From source file:com.google.gwtorm.nosql.IndexFunctionGen.java

License:Apache License

private void implementGetName() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "getName",
            Type.getMethodDescriptor(Type.getType(String.class), new Type[] {}), null, null);
    mv.visitCode();/*  w  w  w.  j  av a2s.co  m*/
    mv.visitLdcInsn(query.getName());
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.nosql.IndexFunctionGen.java

License:Apache License

private void implementIncludes() throws OrmException {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "includes",
            Type.getMethodDescriptor(Type.BOOLEAN_TYPE, new Type[] { object }), null, null);
    mv.visitCode();//from  w  ww .  j av a2  s.com
    final IncludeCGS cgs = new IncludeCGS(mv);
    cgs.setEntityType(pojoType);

    mv.visitVarInsn(ALOAD, 1);
    mv.visitTypeInsn(CHECKCAST, pojoType.getInternalName());
    mv.visitVarInsn(ASTORE, 1);

    Set<ColumnModel> checked = new HashSet<ColumnModel>();
    for (QueryModel.OrderBy orderby : myFields) {
        checkNotNullFields(Collections.singleton(orderby.column), checked, mv, cgs);
    }

    final Tree parseTree = query.getParseTree();
    if (parseTree != null) {
        checkConstants(parseTree, mv, cgs);
    }

    cgs.push(1);
    mv.visitInsn(IRETURN);

    mv.visitLabel(cgs.no);
    cgs.push(0);
    mv.visitInsn(IRETURN);

    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.nosql.IndexFunctionGen.java

License:Apache License

private void implementEncode() throws OrmException {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "encode",
            Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { indexKeyBuilder, object }), null, null);
    mv.visitCode();/* w  ww  . j a  v a  2s .  c  om*/
    final EncodeCGS cgs = new EncodeCGS(mv);
    cgs.setEntityType(pojoType);

    mv.visitVarInsn(ALOAD, 2);
    mv.visitTypeInsn(CHECKCAST, pojoType.getInternalName());
    mv.visitVarInsn(ASTORE, 2);

    encodeFields(myFields, mv, cgs);

    mv.visitInsn(RETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.nosql.IndexFunctionGen.java

License:Apache License

private static void encodeScalar(QueryModel.OrderBy f, final MethodVisitor mv, final EncodeCGS cgs)
        throws OrmException {
    String method = f.descending ? "desc" : "add";
    ColumnModel c = f.column;/*ww w  . j a  v  a  2  s.  com*/
    cgs.setFieldReference(c);

    switch (Type.getType(c.getPrimitiveType()).getSort()) {
    case Type.BOOLEAN:
    case Type.BYTE:
    case Type.SHORT:
    case Type.CHAR:
    case Type.INT:
        cgs.pushBuilder();
        cgs.pushFieldValue();
        mv.visitInsn(I2L);
        mv.visitMethodInsn(INVOKEVIRTUAL, indexKeyBuilder.getInternalName(), method,
                Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.LONG_TYPE }));
        break;

    case Type.LONG:
        cgs.pushBuilder();
        cgs.pushFieldValue();
        mv.visitMethodInsn(INVOKEVIRTUAL, indexKeyBuilder.getInternalName(), method,
                Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.LONG_TYPE }));
        break;

    case Type.ARRAY:
    case Type.OBJECT: {
        if (c.getPrimitiveType() == byte[].class) {
            cgs.pushBuilder();
            cgs.pushFieldValue();
            mv.visitMethodInsn(INVOKEVIRTUAL, indexKeyBuilder.getInternalName(), method,
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(byte[].class) }));

        } else if (c.getPrimitiveType() == String.class) {
            cgs.pushBuilder();
            cgs.pushFieldValue();
            mv.visitMethodInsn(INVOKEVIRTUAL, indexKeyBuilder.getInternalName(), method,
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { string }));

        } else if (c.getPrimitiveType() == java.sql.Timestamp.class
                || c.getPrimitiveType() == java.util.Date.class
                || c.getPrimitiveType() == java.sql.Date.class) {
            cgs.pushBuilder();
            cgs.pushFieldValue();
            String tsType = Type.getType(c.getPrimitiveType()).getInternalName();
            mv.visitMethodInsn(INVOKEVIRTUAL, tsType, "getTime",
                    Type.getMethodDescriptor(Type.LONG_TYPE, new Type[] {}));
            mv.visitMethodInsn(INVOKEVIRTUAL, indexKeyBuilder.getInternalName(), method,
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.LONG_TYPE }));
        } else {
            throw new OrmException(
                    "Type " + c.getPrimitiveType() + " not supported for field " + c.getPathToFieldName());
        }
        break;
    }

    default:
        throw new OrmException(
                "Type " + c.getPrimitiveType() + " not supported for field " + c.getPathToFieldName());
    }
}

---

From source file:com.google.gwtorm.protobuf.CodecGen.java

License:Apache License

private void implementSizeof() throws OrmException {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "sizeof",
            Type.getMethodDescriptor(Type.INT_TYPE, new Type[] { object }), null, new String[] {});
    mv.visitCode();/*from w  w w  . ja v a  2  s . co  m*/
    final SizeofCGS cgs = new SizeofCGS(mv);
    cgs.setEntityType(pojoType);

    mv.visitVarInsn(ALOAD, 1);
    mv.visitTypeInsn(CHECKCAST, pojoType.getInternalName());
    mv.visitVarInsn(ASTORE, 1);

    cgs.push(0);
    mv.visitVarInsn(ISTORE, cgs.sizeVar);
    sizeofMessage(myFields, mv, cgs);

    mv.visitVarInsn(ILOAD, cgs.sizeVar);
    mv.visitInsn(IRETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.protobuf.CodecGen.java

License:Apache License

private static void sizeofScalar(final MethodVisitor mv, final SizeofCGS cgs, final JavaColumnModel f)
        throws OrmException {
    cgs.setFieldReference(f);/*from   w  w  w.  j  av  a 2s . c o m*/

    switch (Type.getType(f.getPrimitiveType()).getSort()) {
    case Type.BOOLEAN:
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.inc("computeBoolSize", Type.INT_TYPE, Type.BOOLEAN_TYPE);
        break;

    case Type.CHAR:
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.inc("computeUInt32Size", Type.INT_TYPE, Type.INT_TYPE);
        break;

    case Type.BYTE:
    case Type.SHORT:
    case Type.INT:
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.inc("computeSInt32Size", Type.INT_TYPE, Type.INT_TYPE);
        break;

    case Type.FLOAT:
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.inc("computeFloatSize", Type.INT_TYPE, Type.FLOAT_TYPE);
        break;

    case Type.DOUBLE:
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.inc("computeDoubleSize", Type.INT_TYPE, Type.DOUBLE_TYPE);
        break;

    case Type.LONG:
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.inc("computeSInt64", Type.INT_TYPE, Type.LONG_TYPE);
        break;

    case Type.ARRAY:
    case Type.OBJECT: {
        final Label end = new Label();
        cgs.pushFieldValue();
        mv.visitJumpInsn(IFNULL, end);

        if (f.getPrimitiveType() == byte[].class) {
            cgs.push(f.getColumnID());
            cgs.inc("computeTagSize", Type.INT_TYPE);

            cgs.pushFieldValue();
            mv.visitInsn(ARRAYLENGTH);
            cgs.inc("computeRawVarint32Size", Type.INT_TYPE);

            cgs.pushFieldValue();
            mv.visitInsn(ARRAYLENGTH);
            cgs.inc();

        } else if (f.getPrimitiveType() == String.class) {
            cgs.push(f.getColumnID());
            cgs.pushFieldValue();
            cgs.inc("computeStringSize", Type.INT_TYPE, string);

        } else if (f.getPrimitiveType() == java.sql.Timestamp.class
                || f.getPrimitiveType() == java.util.Date.class
                || f.getPrimitiveType() == java.sql.Date.class) {
            cgs.push(f.getColumnID());
            String tsType = Type.getType(f.getPrimitiveType()).getInternalName();
            mv.visitMethodInsn(INVOKEVIRTUAL, tsType, "getTime",
                    Type.getMethodDescriptor(Type.LONG_TYPE, new Type[] {}));
            cgs.inc("computeFixed64Size", Type.INT_TYPE, Type.LONG_TYPE);

        } else {
            throw new OrmException(
                    "Type " + f.getPrimitiveType() + " not supported for field " + f.getPathToFieldName());
        }
        mv.visitLabel(end);
        break;
    }

    default:
        throw new OrmException(
                "Type " + f.getPrimitiveType() + " not supported for field " + f.getPathToFieldName());
    }
}

---

From source file:com.google.gwtorm.protobuf.CodecGen.java

License:Apache License

private void implementEncode() throws OrmException {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "encode",
            Type.getMethodDescriptor(byteString, new Type[] { object }), null, new String[] {});
    mv.visitCode();/*  ww w.  j a v a 2s.com*/
    final EncodeCGS cgs = new EncodeCGS(mv);
    cgs.setEntityType(pojoType);

    mv.visitVarInsn(ALOAD, 1);
    mv.visitTypeInsn(CHECKCAST, pojoType.getInternalName());
    mv.visitVarInsn(ASTORE, 1);

    encodeMessage(myFields, mv, cgs);

    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.protobuf.CodecGen.java

License:Apache License

private static void encodeScalar(final MethodVisitor mv, final EncodeCGS cgs, final JavaColumnModel f)
        throws OrmException {
    cgs.setFieldReference(f);//  w  ww .j  a v  a  2 s .c  o m

    switch (Type.getType(f.getPrimitiveType()).getSort()) {
    case Type.BOOLEAN:
        cgs.pushCodedOutputStream();
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.write("writeBool", Type.BOOLEAN_TYPE);
        break;

    case Type.CHAR:
        cgs.pushCodedOutputStream();
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.write("writeUInt32", Type.INT_TYPE);
        break;

    case Type.BYTE:
    case Type.SHORT:
    case Type.INT:
        cgs.pushCodedOutputStream();
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.write("writeSInt32", Type.INT_TYPE);
        break;

    case Type.FLOAT:
        cgs.pushCodedOutputStream();
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.write("writeFloat", Type.FLOAT_TYPE);
        break;

    case Type.DOUBLE:
        cgs.pushCodedOutputStream();
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.write("writeDouble", Type.DOUBLE_TYPE);
        break;

    case Type.LONG:
        cgs.pushCodedOutputStream();
        cgs.push(f.getColumnID());
        cgs.pushFieldValue();
        cgs.write("writeSInt64", Type.LONG_TYPE);
        break;

    case Type.ARRAY:
    case Type.OBJECT: {
        final Label end = new Label();
        cgs.pushFieldValue();
        mv.visitJumpInsn(IFNULL, end);

        if (f.getPrimitiveType() == byte[].class) {
            cgs.pushCodedOutputStream();
            cgs.push(f.getColumnID());
            cgs.push(WireFormat.FieldType.BYTES.getWireType());
            mv.visitMethodInsn(INVOKEVIRTUAL, codedOutputStream.getInternalName(), "writeTag",
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.INT_TYPE, Type.INT_TYPE }));

            cgs.pushCodedOutputStream();
            cgs.pushFieldValue();
            mv.visitInsn(ARRAYLENGTH);
            mv.visitMethodInsn(INVOKEVIRTUAL, codedOutputStream.getInternalName(), "writeRawVarint32",
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.INT_TYPE }));

            cgs.pushCodedOutputStream();
            cgs.pushFieldValue();
            mv.visitMethodInsn(INVOKEVIRTUAL, codedOutputStream.getInternalName(), "writeRawBytes",
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(byte[].class) }));

        } else {
            cgs.pushCodedOutputStream();
            cgs.push(f.getColumnID());
            cgs.pushFieldValue();

            if (f.getPrimitiveType() == String.class) {
                cgs.write("writeString", string);

            } else if (f.getPrimitiveType() == java.sql.Timestamp.class
                    || f.getPrimitiveType() == java.util.Date.class
                    || f.getPrimitiveType() == java.sql.Date.class) {
                String tsType = Type.getType(f.getPrimitiveType()).getInternalName();
                mv.visitMethodInsn(INVOKEVIRTUAL, tsType, "getTime",
                        Type.getMethodDescriptor(Type.LONG_TYPE, new Type[] {}));
                cgs.write("writeFixed64", Type.LONG_TYPE);

            } else {
                throw new OrmException(
                        "Type " + f.getPrimitiveType() + " not supported for field " + f.getPathToFieldName());
            }
        }
        mv.visitLabel(end);
        break;
    }

    default:
        throw new OrmException(
                "Type " + f.getPrimitiveType() + " not supported for field " + f.getPathToFieldName());
    }
}

---

From source file:com.google.gwtorm.protobuf.CodecGen.java

License:Apache License

private void implementDecode() throws OrmException {
    final Type retType = object;
    final MethodVisitor mv = cw.visitMethod(ACC_PROTECTED, "decode",
            Type.getMethodDescriptor(retType, new Type[] { codedInputStream }), null, new String[] {});
    mv.visitCode();/*from  www  . j a  v a  2 s  . co m*/
    final DecodeCGS cgs = new DecodeCGS(mv);

    cgs.setEntityType(pojoType);

    mv.visitTypeInsn(NEW, pojoType.getInternalName());
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, pojoType.getInternalName(), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
    mv.visitVarInsn(ASTORE, cgs.objVar);

    final int tagVar = cgs.newLocal();
    decodeMessage(myFields, mv, cgs);

    cgs.pushEntity();
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.protobuf.CodecGen.java

License:Apache License

private static void decodeMessage(final JavaColumnModel[] myFields, final MethodVisitor mv, final DecodeCGS cgs)
        throws OrmException {
    final Label nextField = new Label();
    final Label end = new Label();
    mv.visitLabel(nextField);/*from w w w. j  a v  a  2 s .  com*/

    // while (!ci.isAtEnd) { ...
    cgs.call("readTag", Type.INT_TYPE);
    mv.visitInsn(DUP);
    mv.visitVarInsn(ISTORE, cgs.tagVar);

    cgs.push(3);
    mv.visitInsn(IUSHR);

    final Label badField = new Label();
    final int[] caseTags = new int[1 + myFields.length];
    final Label[] caseLabels = new Label[caseTags.length];

    caseTags[0] = 0;
    caseLabels[0] = new Label();

    int gaps = 0;
    for (int i = 1; i < caseTags.length; i++) {
        caseTags[i] = myFields[i - 1].getColumnID();
        caseLabels[i] = new Label();
        gaps += caseTags[i] - (caseTags[i - 1] + 1);
    }

    if (2 * gaps / 3 <= myFields.length) {
        final int min = 0;
        final int max = caseTags[caseTags.length - 1];
        final Label[] table = new Label[max + 1];
        Arrays.fill(table, badField);
        for (int idx = 0; idx < caseTags.length; idx++) {
            table[caseTags[idx]] = caseLabels[idx];
        }
        mv.visitTableSwitchInsn(min, max, badField, table);
    } else {
        mv.visitLookupSwitchInsn(badField, caseTags, caseLabels);
    }

    mv.visitLabel(caseLabels[0]);
    mv.visitJumpInsn(GOTO, end);

    for (int idx = 1; idx < caseTags.length; idx++) {
        final JavaColumnModel f = myFields[idx - 1];
        mv.visitLabel(caseLabels[idx]);
        if (f.isNested()) {
            final Label load = new Label();
            cgs.setFieldReference(f);
            cgs.pushFieldValue();
            mv.visitJumpInsn(IFNONNULL, load);
            cgs.fieldSetBegin();
            mv.visitTypeInsn(NEW, Type.getType(f.getNestedClass()).getInternalName());
            mv.visitInsn(DUP);
            mv.visitMethodInsn(INVOKESPECIAL, Type.getType(f.getNestedClass()).getInternalName(), "<init>",
                    Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
            cgs.fieldSetEnd();

            // read the length, set a new limit, decode the message, validate
            // we stopped at the end of it as expected.
            //
            mv.visitLabel(load);
            final int limitVar = cgs.newLocal();
            cgs.pushCodedInputStream();
            cgs.call("readRawVarint32", Type.INT_TYPE);
            cgs.ncallInt("pushLimit", Type.INT_TYPE);
            mv.visitVarInsn(ISTORE, limitVar);

            decodeMessage(sort(f.getNestedColumns()), mv, cgs);

            cgs.pushCodedInputStream();
            mv.visitVarInsn(ILOAD, limitVar);
            cgs.ncallInt("popLimit", Type.VOID_TYPE);
            cgs.freeLocal(limitVar);

        } else {
            decodeScalar(mv, cgs, f);
        }
        mv.visitJumpInsn(GOTO, nextField);
    }

    // default:
    mv.visitLabel(badField);
    cgs.pushCodedInputStream();
    mv.visitVarInsn(ILOAD, cgs.tagVar);
    cgs.ncallInt("skipField", Type.BOOLEAN_TYPE);
    mv.visitInsn(POP);
    mv.visitJumpInsn(GOTO, nextField);

    mv.visitLabel(end);
    cgs.pushCodedInputStream();
    cgs.push(0);
    cgs.ncallInt("checkLastTagWas", Type.VOID_TYPE);
}

---

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