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/mubench/checkouts/bcel/24014e5/build/src/main/java/org/apache/commons/bcel6/generic/ConstantPoolGen.java

ConstantPoolGen(Constant[])

class ConstantPoolGen {
    /**
     * Initialize with given array of constants.
     *
     * @param cs array of given constants, new ones will be appended
     */
    public ConstantPoolGen(Constant[] cs) {
        StringBuilder sb = new StringBuilder(DEFAULT_BUFFER_SIZE);

        size = Math.max(DEFAULT_BUFFER_SIZE, cs.length + 64);
        constants = new Constant[size];

        System.arraycopy(cs, 0, constants, 0, cs.length);
        if (cs.length > 0) {
            index = cs.length;
        }


        for (int i = 1; i < index; i++) {
            Constant c = constants[i];
            if (c instanceof ConstantString) {
                ConstantString s = (ConstantString) c;
                ConstantUtf8 u8 = (ConstantUtf8) constants[s.getStringIndex()];
                String key = u8.getBytes();
                if (!string_table.containsKey(key)) {
                    string_table.put(key, new Index(i));
                }
            } else if (c instanceof ConstantClass) {
                ConstantClass s = (ConstantClass) c;
                ConstantUtf8 u8 = (ConstantUtf8) constants[s.getNameIndex()];
                String key = u8.getBytes();
                if (!class_table.containsKey(key)) {
                    class_table.put(key, new Index(i));
                }
            } else if (c instanceof ConstantNameAndType) {
                ConstantNameAndType n = (ConstantNameAndType) c;
                ConstantUtf8 u8 = (ConstantUtf8) constants[n.getNameIndex()];
                ConstantUtf8 u8_2 = (ConstantUtf8) constants[n.getSignatureIndex()];

                sb.append(u8.getBytes());
                sb.append(NAT_DELIM);
                sb.append(u8_2.getBytes());
                String key = sb.toString();
                sb.delete(0, sb.length());

                if (!n_a_t_table.containsKey(key)) {
                    n_a_t_table.put(key, new Index(i));
                }
            } else if (c instanceof ConstantUtf8) {
                ConstantUtf8 u = (ConstantUtf8) c;
                String key = u.getBytes();
                if (!utf8_table.containsKey(key)) {
                    utf8_table.put(key, new Index(i));
                }
            } else if (c instanceof ConstantCP) {
                ConstantCP m = (ConstantCP) c;
                String class_name;
                ConstantUtf8 u8;

                if (c instanceof ConstantInvokeDynamic) {
                    class_name = Integer.toString(((ConstantInvokeDynamic) m).getBootstrapMethodAttrIndex());
                    // since name can't begin with digit, can  use
                    // METHODREF_DELIM with out fear of duplicates.
                } else {
                ConstantClass clazz = (ConstantClass) constants[m.getClassIndex()];
                    u8 = (ConstantUtf8) constants[clazz.getNameIndex()];
                    class_name = u8.getBytes().replace('/', '.');
                }

                ConstantNameAndType n = (ConstantNameAndType) constants[m.getNameAndTypeIndex()];
                u8 = (ConstantUtf8) constants[n.getNameIndex()];
                String method_name = u8.getBytes();
                u8 = (ConstantUtf8) constants[n.getSignatureIndex()];
                String signature = u8.getBytes();

                String delim = METHODREF_DELIM;
                if (c instanceof ConstantInterfaceMethodref) {
                    delim = IMETHODREF_DELIM;
                } else if (c instanceof ConstantFieldref) {
                    delim = FIELDREF_DELIM;
                }

                sb.append(class_name);
                sb.append(delim);
                sb.append(method_name);
                sb.append(delim);
                sb.append(signature);
                String key = sb.toString();
                sb.delete(0, sb.length());

                if (!cp_table.containsKey(key)) {
                    cp_table.put(key, new Index(i));
                }
            } else if (c == null) { // entries may be null
                // nothing to do
            } else if (c instanceof ConstantInteger) {
                // nothing to do
            } else if (c instanceof ConstantLong) {
                // nothing to do
            } else if (c instanceof ConstantFloat) {
                // nothing to do
            } else if (c instanceof ConstantDouble) {
                // nothing to do
            } else if (c instanceof org.apache.commons.bcel6.classfile.ConstantMethodType) {
                // TODO should this be handled somehow?
            } else if (c instanceof org.apache.commons.bcel6.classfile.ConstantMethodHandle) {
                // TODO should this be handled somehow?
            } else {
                assert false : "Unexpected constant type: " + c.getClass().getName();
            }
        }
    }

}