/** Import constant from another ConstantPool and return new index. */
public int addConstant(Constant c, ConstantPoolGen cp) {
Constant[] constants = cp.getConstantPool().getConstantPool();
switch (c.getTag()) {
case Constants.CONSTANT_String:
{
ConstantString s = (ConstantString) c;
ConstantUtf8 u8 = (ConstantUtf8) constants[s.getStringIndex()];
return addString(u8.getBytes());
}
case Constants.CONSTANT_Class:
{
ConstantClass s = (ConstantClass) c;
ConstantUtf8 u8 = (ConstantUtf8) constants[s.getNameIndex()];
return addClass(u8.getBytes());
}
case Constants.CONSTANT_NameAndType:
{
ConstantNameAndType n = (ConstantNameAndType) c;
ConstantUtf8 u8 = (ConstantUtf8) constants[n.getNameIndex()];
ConstantUtf8 u8_2 = (ConstantUtf8) constants[n.getSignatureIndex()];
return addNameAndType(u8.getBytes(), u8_2.getBytes());
}
case Constants.CONSTANT_Utf8:
return addUtf8(((ConstantUtf8) c).getBytes());
case Constants.CONSTANT_Double:
return addDouble(((ConstantDouble) c).getBytes());
case Constants.CONSTANT_Float:
return addFloat(((ConstantFloat) c).getBytes());
case Constants.CONSTANT_Long:
return addLong(((ConstantLong) c).getBytes());
case Constants.CONSTANT_Integer:
return addInteger(((ConstantInteger) c).getBytes());
case Constants.CONSTANT_InterfaceMethodref:
case Constants.CONSTANT_Methodref:
case Constants.CONSTANT_Fieldref:
{
ConstantCP m = (ConstantCP) c;
ConstantClass clazz = (ConstantClass) constants[m.getClassIndex()];
ConstantNameAndType n = (ConstantNameAndType) constants[m.getNameAndTypeIndex()];
ConstantUtf8 u8 = (ConstantUtf8) constants[clazz.getNameIndex()];
String class_name = u8.getBytes().replace('/', '.');
u8 = (ConstantUtf8) constants[n.getNameIndex()];
String name = u8.getBytes();
u8 = (ConstantUtf8) constants[n.getSignatureIndex()];
String signature = u8.getBytes();
switch (c.getTag()) {
case Constants.CONSTANT_InterfaceMethodref:
return addInterfaceMethodref(class_name, name, signature);
case Constants.CONSTANT_Methodref:
return addMethodref(class_name, name, signature);
case Constants.CONSTANT_Fieldref:
return addFieldref(class_name, name, signature);
default: // Never reached
throw new RuntimeException("Unknown constant type " + c);
}
}
default: // Never reached
throw new RuntimeException("Unknown constant type " + c);
}
}
/**
* Initialize with given array of constants.
*
* @param cs array of given constants, new ones will be appended
*/
public ConstantPoolGen(Constant[] cs) {
if (cs.length > size) {
size = cs.length;
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()];
String key = u8.getBytes() + NAT_DELIM + u8_2.getBytes();
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;
ConstantClass clazz = (ConstantClass) constants[m.getClassIndex()];
ConstantNameAndType n = (ConstantNameAndType) constants[m.getNameAndTypeIndex()];
ConstantUtf8 u8 = (ConstantUtf8) constants[clazz.getNameIndex()];
String class_name = u8.getBytes().replace('/', '.');
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;
}
String key = class_name + delim + method_name + delim + signature;
if (!cp_table.containsKey(key)) {
cp_table.put(key, new Index(i));
}
}
}
}
