Examples with Type com.android.dx.rop.type.Type used on opensource projects

Example 46 with Type

use of com.android.dx.rop.type.Type in project buck by facebook.

the class ClassDefsSection method add.

/**
     * Adds an element to this instance. It is illegal to attempt to add more
     * than one class with the same name.
     *
     * @param clazz {@code non-null;} the class def to add
     */
public void add(ClassDefItem clazz) {
    Type type;
    try {
        type = clazz.getThisClass().getClassType();
    } catch (NullPointerException ex) {
        // Elucidate the exception.
        throw new NullPointerException("clazz == null");
    }
    throwIfPrepared();
    if (classDefs.get(type) != null) {
        throw new IllegalArgumentException("already added: " + type);
    }
    classDefs.put(type, clazz);
}

Example 47 with Type

use of com.android.dx.rop.type.Type in project buck by facebook.

the class ClassDefsSection method get.

/** {@inheritDoc} */
@Override
public IndexedItem get(Constant cst) {
    if (cst == null) {
        throw new NullPointerException("cst == null");
    }
    throwIfNotPrepared();
    Type type = ((CstType) cst).getClassType();
    IndexedItem result = classDefs.get(type);
    if (result == null) {
        throw new IllegalArgumentException("not found");
    }
    return result;
}

Example 48 with Type

use of com.android.dx.rop.type.Type in project buck by facebook.

the class DebugInfoDecoder method decode0.

private void decode0() throws IOException {
    ByteInput bs = new ByteArrayByteInput(encoded);
    line = Leb128.readUnsignedLeb128(bs);
    int szParams = Leb128.readUnsignedLeb128(bs);
    StdTypeList params = desc.getParameterTypes();
    int curReg = getParamBase();
    if (szParams != params.size()) {
        throw new RuntimeException("Mismatch between parameters_size and prototype");
    }
    if (!isStatic) {
        // Start off with implicit 'this' entry
        LocalEntry thisEntry = new LocalEntry(0, true, curReg, thisStringIdx, 0, 0);
        locals.add(thisEntry);
        lastEntryForReg[curReg] = thisEntry;
        curReg++;
    }
    for (int i = 0; i < szParams; i++) {
        Type paramType = params.getType(i);
        LocalEntry le;
        int nameIdx = readStringIndex(bs);
        if (nameIdx == -1) {
            /*
                 * Unnamed parameter; often but not always filled in by an
                 * extended start op after the prologue
                 */
            le = new LocalEntry(0, true, curReg, -1, 0, 0);
        } else {
            // TODO: Final 0 should be idx of paramType.getDescriptor().
            le = new LocalEntry(0, true, curReg, nameIdx, 0, 0);
        }
        locals.add(le);
        lastEntryForReg[curReg] = le;
        curReg += paramType.getCategory();
    }
    for (; ; ) {
        int opcode = bs.readByte() & 0xff;
        switch(opcode) {
            case DBG_START_LOCAL:
                {
                    int reg = Leb128.readUnsignedLeb128(bs);
                    int nameIdx = readStringIndex(bs);
                    int typeIdx = readStringIndex(bs);
                    LocalEntry le = new LocalEntry(address, true, reg, nameIdx, typeIdx, 0);
                    locals.add(le);
                    lastEntryForReg[reg] = le;
                }
                break;
            case DBG_START_LOCAL_EXTENDED:
                {
                    int reg = Leb128.readUnsignedLeb128(bs);
                    int nameIdx = readStringIndex(bs);
                    int typeIdx = readStringIndex(bs);
                    int sigIdx = readStringIndex(bs);
                    LocalEntry le = new LocalEntry(address, true, reg, nameIdx, typeIdx, sigIdx);
                    locals.add(le);
                    lastEntryForReg[reg] = le;
                }
                break;
            case DBG_RESTART_LOCAL:
                {
                    int reg = Leb128.readUnsignedLeb128(bs);
                    LocalEntry prevle;
                    LocalEntry le;
                    try {
                        prevle = lastEntryForReg[reg];
                        if (prevle.isStart) {
                            throw new RuntimeException("nonsensical " + "RESTART_LOCAL on live register v" + reg);
                        }
                        le = new LocalEntry(address, true, reg, prevle.nameIndex, prevle.typeIndex, 0);
                    } catch (NullPointerException ex) {
                        throw new RuntimeException("Encountered RESTART_LOCAL on new v" + reg);
                    }
                    locals.add(le);
                    lastEntryForReg[reg] = le;
                }
                break;
            case DBG_END_LOCAL:
                {
                    int reg = Leb128.readUnsignedLeb128(bs);
                    LocalEntry prevle;
                    LocalEntry le;
                    try {
                        prevle = lastEntryForReg[reg];
                        if (!prevle.isStart) {
                            throw new RuntimeException("nonsensical " + "END_LOCAL on dead register v" + reg);
                        }
                        le = new LocalEntry(address, false, reg, prevle.nameIndex, prevle.typeIndex, prevle.signatureIndex);
                    } catch (NullPointerException ex) {
                        throw new RuntimeException("Encountered END_LOCAL on new v" + reg);
                    }
                    locals.add(le);
                    lastEntryForReg[reg] = le;
                }
                break;
            case DBG_END_SEQUENCE:
                // all done
                return;
            case DBG_ADVANCE_PC:
                address += Leb128.readUnsignedLeb128(bs);
                break;
            case DBG_ADVANCE_LINE:
                line += Leb128.readSignedLeb128(bs);
                break;
            case DBG_SET_PROLOGUE_END:
                //TODO do something with this.
                break;
            case DBG_SET_EPILOGUE_BEGIN:
                //TODO do something with this.
                break;
            case DBG_SET_FILE:
                //TODO do something with this.
                break;
            default:
                if (opcode < DBG_FIRST_SPECIAL) {
                    throw new RuntimeException("Invalid extended opcode encountered " + opcode);
                }
                int adjopcode = opcode - DBG_FIRST_SPECIAL;
                address += adjopcode / DBG_LINE_RANGE;
                line += DBG_LINE_BASE + (adjopcode % DBG_LINE_RANGE);
                positions.add(new PositionEntry(address, line));
                break;
        }
    }
}

Example 49 with Type

use of com.android.dx.rop.type.Type in project buck by facebook.

the class DebugInfoEncoder method emitHeader.

/**
     * Emits the header sequence, which consists of LEB128-encoded initial
     * line number and string indicies for names of all non-"this" arguments.
     *
     * @param sortedPositions positions, sorted by ascending address
     * @param methodArgs local list entries for method argumens arguments,
     * in left-to-right order omitting "this"
     * @throws IOException
     */
private void emitHeader(ArrayList<PositionList.Entry> sortedPositions, ArrayList<LocalList.Entry> methodArgs) throws IOException {
    boolean annotate = (annotateTo != null) || (debugPrint != null);
    int mark = output.getCursor();
    // Start by initializing the line number register.
    if (sortedPositions.size() > 0) {
        PositionList.Entry entry = sortedPositions.get(0);
        line = entry.getPosition().getLine();
    }
    output.writeUleb128(line);
    if (annotate) {
        annotate(output.getCursor() - mark, "line_start: " + line);
    }
    int curParam = getParamBase();
    // paramTypes will not include 'this'
    StdTypeList paramTypes = desc.getParameterTypes();
    int szParamTypes = paramTypes.size();
    /*
         * Initialize lastEntryForReg to have an initial
         * entry for the 'this' pointer.
         */
    if (!isStatic) {
        for (LocalList.Entry arg : methodArgs) {
            if (curParam == arg.getRegister()) {
                lastEntryForReg[curParam] = arg;
                break;
            }
        }
        curParam++;
    }
    // Write out the number of parameter entries that will follow.
    mark = output.getCursor();
    output.writeUleb128(szParamTypes);
    if (annotate) {
        annotate(output.getCursor() - mark, String.format("parameters_size: %04x", szParamTypes));
    }
    /*
         * Then emit the string indicies of all the method parameters.
         * Note that 'this', if applicable, is excluded.
         */
    for (int i = 0; i < szParamTypes; i++) {
        Type pt = paramTypes.get(i);
        LocalList.Entry found = null;
        mark = output.getCursor();
        for (LocalList.Entry arg : methodArgs) {
            if (curParam == arg.getRegister()) {
                found = arg;
                if (arg.getSignature() != null) {
                    /*
                         * Parameters with signatures will be re-emitted
                         * in complete as LOCAL_START_EXTENDED's below.
                         */
                    emitStringIndex(null);
                } else {
                    emitStringIndex(arg.getName());
                }
                lastEntryForReg[curParam] = arg;
                break;
            }
        }
        if (found == null) {
            /*
                 * Emit a null symbol for "unnamed." This is common
                 * for, e.g., synthesized methods and inner-class
                 * this$0 arguments.
                 */
            emitStringIndex(null);
        }
        if (annotate) {
            String parameterName = (found == null || found.getSignature() != null) ? "<unnamed>" : found.getName().toHuman();
            annotate(output.getCursor() - mark, "parameter " + parameterName + " " + RegisterSpec.PREFIX + curParam);
        }
        curParam += pt.getCategory();
    }
    for (LocalList.Entry arg : lastEntryForReg) {
        if (arg == null) {
            continue;
        }
        CstString signature = arg.getSignature();
        if (signature != null) {
            emitLocalStartExtended(arg);
        }
    }
}

Example 50 with Type

use of com.android.dx.rop.type.Type in project buck by facebook.

the class StdCatchBuilder method handlersFor.

/**
     * Makes the {@link CatchHandlerList} for the given basic block.
     *
     * @param block {@code non-null;} block to get entries for
     * @param addresses {@code non-null;} address objects for each block
     * @return {@code non-null;} array of entries
     */
private static CatchHandlerList handlersFor(BasicBlock block, BlockAddresses addresses) {
    IntList successors = block.getSuccessors();
    int succSize = successors.size();
    int primary = block.getPrimarySuccessor();
    TypeList catches = block.getLastInsn().getCatches();
    int catchSize = catches.size();
    if (catchSize == 0) {
        return CatchHandlerList.EMPTY;
    }
    if (((primary == -1) && (succSize != catchSize)) || ((primary != -1) && ((succSize != (catchSize + 1)) || (primary != successors.get(catchSize))))) {
        /*
             * Blocks that throw are supposed to list their primary
             * successor -- if any -- last in the successors list, but
             * that constraint appears to be violated here.
             */
        throw new RuntimeException("shouldn't happen: weird successors list");
    }
    /*
         * Reduce the effective catchSize if we spot a catch-all that
         * isn't at the end.
         */
    for (int i = 0; i < catchSize; i++) {
        Type type = catches.getType(i);
        if (type.equals(Type.OBJECT)) {
            catchSize = i + 1;
            break;
        }
    }
    CatchHandlerList result = new CatchHandlerList(catchSize);
    for (int i = 0; i < catchSize; i++) {
        CstType oneType = new CstType(catches.getType(i));
        CodeAddress oneHandler = addresses.getStart(successors.get(i));
        result.set(i, oneType, oneHandler.getAddress());
    }
    result.setImmutable();
    return result;
}