/**
* Does the actual parsing.
*/
private void parse0() {
if (bytes.size() < 10) {
throw new ParseException("severely truncated class file");
}
if (observer != null) {
observer.parsed(bytes, 0, 0, "begin classfile");
observer.parsed(bytes, 0, 4, "magic: " + Hex.u4(getMagic0()));
observer.parsed(bytes, 4, 2,
"minor_version: " + Hex.u2(getMinorVersion0()));
observer.parsed(bytes, 6, 2,
"major_version: " + Hex.u2(getMajorVersion0()));
}
if (strictParse) {
/* Make sure that this looks like a valid class file with a
* version that we can handle.
*/
if (!isGoodVersion(getMagic0(), getMinorVersion0(),
getMajorVersion0())) {
throw new ParseException("bad class file magic (" +
Hex.u4(getMagic0()) +
") or version (" +
Hex.u2(getMajorVersion0()) + "." +
Hex.u2(getMinorVersion0()) + ")");
}
}
ConstantPoolParser cpParser = new ConstantPoolParser(bytes);
cpParser.setObserver(observer);
pool = cpParser.getPool();
pool.setImmutable();
int at = cpParser.getEndOffset();
int accessFlags = bytes.getUnsignedShort(at); // u2 access_flags;
int cpi = bytes.getUnsignedShort(at + 2); // u2 this_class;
thisClass = (CstType) pool.get(cpi);
cpi = bytes.getUnsignedShort(at + 4); // u2 super_class;
superClass = (CstType) pool.get0Ok(cpi);
int count = bytes.getUnsignedShort(at + 6); // u2 interfaces_count
if (observer != null) {
observer.parsed(bytes, at, 2,
"access_flags: " +
AccessFlags.classString(accessFlags));
observer.parsed(bytes, at + 2, 2, "this_class: " + thisClass);
observer.parsed(bytes, at + 4, 2, "super_class: " +
stringOrNone(superClass));
observer.parsed(bytes, at + 6, 2,
"interfaces_count: " + Hex.u2(count));
if (count != 0) {
observer.parsed(bytes, at + 8, 0, "interfaces:");
}
}
at += 8;
interfaces = makeTypeList(at, count);
at += count * 2;
if (strictParse) {
/*
* Make sure that the file/jar path matches the declared
* package/class name.
*/
String thisClassName = thisClass.getClassType().getClassName();
if (!(filePath.endsWith(".class") &&
filePath.startsWith(thisClassName) &&
(filePath.length() == (thisClassName.length() + 6)))) {
throw new ParseException("class name (" + thisClassName +
") does not match path (" +
filePath + ")");
}
}
/*
* Only set the instance variable accessFlags here, since
* that's what signals a successful parse of the first part of
* the file (through the interfaces list).
*/
this.accessFlags = accessFlags;
FieldListParser flParser =
new FieldListParser(this, thisClass, at, attributeFactory);
flParser.setObserver(observer);
fields = flParser.getList();
at = flParser.getEndOffset();
MethodListParser mlParser =
new MethodListParser(this, thisClass, at, attributeFactory);
mlParser.setObserver(observer);
methods = mlParser.getList();
at = mlParser.getEndOffset();
AttributeListParser alParser =
new AttributeListParser(this, AttributeFactory.CTX_CLASS, at,
attributeFactory);
alParser.setObserver(observer);
attributes = alParser.getList();
attributes.setImmutable();
at = alParser.getEndOffset();
if (at != bytes.size()) {
throw new ParseException("extra bytes at end of class file, " +
"at offset " + Hex.u4(at));
}
if (observer != null) {
observer.parsed(bytes, at, 0, "end classfile");