/**
* Parse the table part of either a {@code LocalVariableTable} or a {@code
* LocalVariableTypeTable}.
*
* @param bytes {@code non-null;} bytes to parse, which should <i>only</i> contain the table data
* (no header)
* @param pool {@code non-null;} constant pool to use
* @param count {@code >= 0;} the number of entries
* @param typeTable {@code true} iff this is for a type table
* @return {@code non-null;} the constructed list
*/
private LocalVariableList parseLocalVariables(
ByteArray bytes, ConstantPool pool, ParseObserver observer, int count, boolean typeTable) {
if (bytes.size() != (count * 10)) {
// "+ 2" is for the count.
throwBadLength((count * 10) + 2);
}
ByteArray.MyDataInputStream in = bytes.makeDataInputStream();
LocalVariableList list = new LocalVariableList(count);
try {
for (int i = 0; i < count; i++) {
int startPc = in.readUnsignedShort();
int length = in.readUnsignedShort();
int nameIdx = in.readUnsignedShort();
int typeIdx = in.readUnsignedShort();
int index = in.readUnsignedShort();
CstString name = (CstString) pool.get(nameIdx);
CstString type = (CstString) pool.get(typeIdx);
CstString descriptor = null;
CstString signature = null;
if (typeTable) {
signature = type;
} else {
descriptor = type;
}
list.set(i, startPc, length, name, descriptor, signature, index);
if (observer != null) {
observer.parsed(
bytes,
i * 10,
10,
Hex.u2(startPc)
+ ".."
+ Hex.u2(startPc + length)
+ " "
+ Hex.u2(index)
+ " "
+ name.toHuman()
+ " "
+ type.toHuman());
}
}
} catch (IOException ex) {
throw new RuntimeException("shouldn't happen", ex);
}
list.setImmutable();
return list;
}
private BootstrapMethodList parseBootstrapMethods(
ByteArray bytes, ConstantPool pool, ParseObserver observer, int count) {
ByteArray.MyDataInputStream in = bytes.makeDataInputStream();
BootstrapMethodList list = new BootstrapMethodList(count);
try {
for (int i = 0; i < count; i++) {
int bootstrap_method_ref = in.readUnsignedShort();
CstMethodHandle methodHandle = (CstMethodHandle) pool.get(bootstrap_method_ref);
int num_bootstrap_arguments = in.readUnsignedShort();
BootstrapArgumentList bootstrapArgumentList =
new BootstrapArgumentList(num_bootstrap_arguments);
for (int j = 0; j < num_bootstrap_arguments; ++j) {
int bootstrap_argument_idx = in.readUnsignedShort();
Constant constant = pool.get(bootstrap_argument_idx);
bootstrapArgumentList.set(j, constant);
}
bootstrapArgumentList.setImmutable();
list.set(i, new BootstrapMethodList.BootstrapMethod(methodHandle, bootstrapArgumentList));
if (observer != null) {
// observer.parsed(bytes, i * 10, 10, Hex.u2(startPc) +
// ".." + Hex.u2(startPc + length) + " " +
// Hex.u2(index) + " " + name.toHuman() + " " +
// type.toHuman());
}
}
} catch (IOException ex) {
throw new RuntimeException("shouldn't happen", ex);
}
list.setImmutable();
return list;
}