Examples with ByteArray com.taobao.android.dx.util.ByteArray used on opensource projects

Example 11 with ByteArray

use of com.taobao.android.dx.util.ByteArray in project atlas by alibaba.

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 12 with ByteArray

use of com.taobao.android.dx.util.ByteArray in project atlas by alibaba.

the class StdAttributeFactory method parseLocalVariables.

/**
     * 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;
}

Example 13 with ByteArray

use of com.taobao.android.dx.util.ByteArray in project atlas by alibaba.

the class StdAttributeFactory method localVariableTable.

/**
     * Parses a {@code LocalVariableTable} attribute.
     */
private Attribute localVariableTable(DirectClassFile cf, int offset, int length, ParseObserver observer) {
    if (length < 2) {
        return throwSeverelyTruncated();
    }
    ByteArray bytes = cf.getBytes();
    int count = bytes.getUnsignedShort(offset);
    if (observer != null) {
        observer.parsed(bytes, offset, 2, "local_variable_table_length: " + Hex.u2(count));
    }
    LocalVariableList list = parseLocalVariables(bytes.slice(offset + 2, offset + length), cf.getConstantPool(), observer, count, false);
    return new AttLocalVariableTable(list);
}

Example 14 with ByteArray

use of com.taobao.android.dx.util.ByteArray in project atlas by alibaba.

the class StringDataItem method writeTo0.

/** {@inheritDoc} */
@Override
public void writeTo0(DexFile file, AnnotatedOutput out) {
    ByteArray bytes = value.getBytes();
    int utf16Size = value.getUtf16Size();
    if (out.annotates()) {
        out.annotate(Leb128.unsignedLeb128Size(utf16Size), "utf16_size: " + Hex.u4(utf16Size));
        out.annotate(bytes.size() + 1, value.toQuoted());
    }
    out.writeUleb128(utf16Size);
    out.write(bytes);
    out.writeByte(0);
}

Example 15 with ByteArray

use of com.taobao.android.dx.util.ByteArray in project atlas by alibaba.

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;
}