Examples with ConstantPool com.android.dx.rop.cst.ConstantPool used on opensource projects

Example 1 with ConstantPool

use of com.android.dx.rop.cst.ConstantPool in project buck by facebook.

the class StdAttributeFactory method enclosingMethod.

/**
     * Parses an {@code EnclosingMethod} attribute.
     */
private Attribute enclosingMethod(DirectClassFile cf, int offset, int length, ParseObserver observer) {
    if (length != 4) {
        throwBadLength(4);
    }
    ByteArray bytes = cf.getBytes();
    ConstantPool pool = cf.getConstantPool();
    int idx = bytes.getUnsignedShort(offset);
    CstType type = (CstType) pool.get(idx);
    idx = bytes.getUnsignedShort(offset + 2);
    CstNat method = (CstNat) pool.get0Ok(idx);
    Attribute result = new AttEnclosingMethod(type, method);
    if (observer != null) {
        observer.parsed(bytes, offset, 2, "class: " + type);
        observer.parsed(bytes, offset + 2, 2, "method: " + DirectClassFile.stringOrNone(method));
    }
    return result;
}

Example 2 with ConstantPool

use of com.android.dx.rop.cst.ConstantPool in project buck by facebook.

the class StdAttributeFactory method signature.

/**
     * Parses a {@code Signature} attribute.
     */
private Attribute signature(DirectClassFile cf, int offset, int length, ParseObserver observer) {
    if (length != 2) {
        throwBadLength(2);
    }
    ByteArray bytes = cf.getBytes();
    ConstantPool pool = cf.getConstantPool();
    int idx = bytes.getUnsignedShort(offset);
    CstString cst = (CstString) pool.get(idx);
    Attribute result = new AttSignature(cst);
    if (observer != null) {
        observer.parsed(bytes, offset, 2, "signature: " + cst);
    }
    return result;
}

Example 3 with ConstantPool

use of com.android.dx.rop.cst.ConstantPool in project buck by facebook.

the class MemberListParser method parse.

/**
     * Does the actual parsing.
     */
private void parse() {
    int attributeContext = getAttributeContext();
    int count = getCount();
    // Skip the count.
    int at = offset + 2;
    ByteArray bytes = cf.getBytes();
    ConstantPool pool = cf.getConstantPool();
    if (observer != null) {
        observer.parsed(bytes, offset, 2, humanName() + "s_count: " + Hex.u2(count));
    }
    for (int i = 0; i < count; i++) {
        try {
            int accessFlags = bytes.getUnsignedShort(at);
            int nameIdx = bytes.getUnsignedShort(at + 2);
            int descIdx = bytes.getUnsignedShort(at + 4);
            CstString name = (CstString) pool.get(nameIdx);
            CstString desc = (CstString) pool.get(descIdx);
            if (observer != null) {
                observer.startParsingMember(bytes, at, name.getString(), desc.getString());
                observer.parsed(bytes, at, 0, "\n" + humanName() + "s[" + i + "]:\n");
                observer.changeIndent(1);
                observer.parsed(bytes, at, 2, "access_flags: " + humanAccessFlags(accessFlags));
                observer.parsed(bytes, at + 2, 2, "name: " + name.toHuman());
                observer.parsed(bytes, at + 4, 2, "descriptor: " + desc.toHuman());
            }
            at += 6;
            AttributeListParser parser = new AttributeListParser(cf, attributeContext, at, attributeFactory);
            parser.setObserver(observer);
            at = parser.getEndOffset();
            StdAttributeList attributes = parser.getList();
            attributes.setImmutable();
            CstNat nat = new CstNat(name, desc);
            Member member = set(i, accessFlags, nat, attributes);
            if (observer != null) {
                observer.changeIndent(-1);
                observer.parsed(bytes, at, 0, "end " + humanName() + "s[" + i + "]\n");
                observer.endParsingMember(bytes, at, name.getString(), desc.getString(), member);
            }
        } catch (ParseException ex) {
            ex.addContext("...while parsing " + humanName() + "s[" + i + "]");
            throw ex;
        } catch (RuntimeException ex) {
            ParseException pe = new ParseException(ex);
            pe.addContext("...while parsing " + humanName() + "s[" + i + "]");
            throw pe;
        }
    }
    endOffset = at;
}

Example 4 with ConstantPool

use of com.android.dx.rop.cst.ConstantPool in project buck by facebook.

the class StdAttributeFactory method sourceFile.

/**
     * Parses a {@code SourceFile} attribute.
     */
private Attribute sourceFile(DirectClassFile cf, int offset, int length, ParseObserver observer) {
    if (length != 2) {
        throwBadLength(2);
    }
    ByteArray bytes = cf.getBytes();
    ConstantPool pool = cf.getConstantPool();
    int idx = bytes.getUnsignedShort(offset);
    CstString cst = (CstString) pool.get(idx);
    Attribute result = new AttSourceFile(cst);
    if (observer != null) {
        observer.parsed(bytes, offset, 2, "source: " + cst);
    }
    return result;
}

Example 5 with ConstantPool

use of com.android.dx.rop.cst.ConstantPool in project buck by facebook.

the class AttributeFactory method parse0.

/**
     * Parses attribute content. The base class implements this by constructing
     * an instance of {@link RawAttribute}. Subclasses are expected to
     * override this to do something better in most cases.
     *
     * @param cf {@code non-null;} class file to parse from
     * @param context context to parse in; one of the {@code CTX_*}
     * constants
     * @param name {@code non-null;} the attribute name
     * @param offset offset into {@code bytes} to start parsing at; this
     * is the offset to the start of attribute data, not to the header
     * @param length the length of the attribute data
     * @param observer {@code null-ok;} parse observer to report to, if any
     * @return {@code non-null;} an appropriately-constructed {@link Attribute}
     */
protected Attribute parse0(DirectClassFile cf, int context, String name, int offset, int length, ParseObserver observer) {
    ByteArray bytes = cf.getBytes();
    ConstantPool pool = cf.getConstantPool();
    Attribute result = new RawAttribute(name, bytes, offset, length, pool);
    if (observer != null) {
        observer.parsed(bytes, offset, length, "attribute data");
    }
    return result;
}