예제 #1
0
void CChildLimitedDatasetColumnInfo::buildDeserialize(HqlCppTranslator & translator, BuildCtx & ctx, IReferenceSelector * selector, IHqlExpression * helper, IAtom * serializeForm)
{
    assertex(!column->isDictionary());
    if (sizeField || !countField)
    {
        ctx.addQuoted("rtlFailUnexpected();");
        return;
    }

    //NB: The serialized form of a dataset with an external count is not the same as a normal dataset
    IHqlExpression * record = column->queryRecord();
    if (recordRequiresSerialization(record, serializeForm) || !translator.isFixedRecordSize(record))
    {
        Owned<IHqlCppDatasetBuilder> builder = translator.createBlockedDatasetBuilder(column->queryRecord());
        builder->buildDeclare(ctx);

        buildDeserializeToBuilder(translator, ctx, builder, selector, helper, serializeForm);

        CHqlBoundExpr bound;
        builder->buildFinish(ctx, bound);

        setColumnFromBuilder(translator, ctx, selector, builder);
    }
    else
        CColumnInfo::buildDeserialize(translator, ctx, selector, helper, serializeForm);
}
예제 #2
0
void CChildDatasetColumnInfo::setColumn(HqlCppTranslator & translator, BuildCtx & ctx, IReferenceSelector * selector, IHqlExpression * _value)
{
    OwnedHqlExpr addressSize = getColumnAddress(translator, ctx, selector, sizetType, 0);
    OwnedHqlExpr addressData = getColumnAddress(translator, ctx, selector, queryType(), sizeof(size32_t));

    OwnedHqlExpr lengthTarget = convertAddressToValue(addressSize, sizetType);

    ITypeInfo * columnType = column->queryType();
    OwnedHqlExpr value = LINK(_value); //ensureExprType(_value, columnType);
    ITypeInfo * valueType = value->queryType();

    assertRecordTypesMatch(valueType, columnType);

    bool assignInline = false;  // canEvaluateInline(value);   // MORE: What is the test
//  bool assignInline = canAssignInline(&ctx, value) && !canEvaluateInline(&ctx, value);
    value.setown(addDatasetLimits(translator, ctx, selector, value));

    IHqlExpression * record = column->queryRecord();
    if (assignInline)
    {
        OwnedHqlExpr inlineSize = getSizetConstant(0);
        checkAssignOk(translator, ctx, selector, inlineSize, sizeof(size32_t));

        //Can only assign inline if we know the maximum length that will be assigned is 0.
        Owned<IHqlCppDatasetBuilder> builder = translator.createInlineDatasetBuilder(record, inlineSize, addressData);
        builder->buildDeclare(ctx);

        translator.buildDatasetAssign(ctx, builder, value);

        CHqlBoundTarget boundTarget;
        boundTarget.length.set(lengthTarget);
        builder->buildFinish(ctx, boundTarget);
    }
    else
    {
        CHqlBoundExpr bound;
        translator.buildDataset(ctx, value, bound, FormatBlockedDataset);
        translator.normalizeBoundExpr(ctx, bound);
        ensureSimpleLength(translator, ctx, bound);

        OwnedHqlExpr length = translator.getBoundLength(bound);
        OwnedHqlExpr size = createValue(no_translated, LINK(sizetType), translator.getBoundSize(bound));
        checkAssignOk(translator, ctx, selector, size, sizeof(size32_t));

        translator.assignBoundToTemp(ctx, lengthTarget, length);
        translator.buildBlockCopy(ctx, addressData, bound);

        //Use the size just calculated for the field
        OwnedHqlExpr sizeOfExpr = createValue(no_sizeof, LINK(sizetType), LINK(selector->queryExpr()));
        OwnedHqlExpr boundSize = translator.getBoundSize(bound);
        OwnedHqlExpr srcSize = adjustValue(boundSize, sizeof(size32_t));
        ctx.associateExpr(sizeOfExpr, srcSize);
    }
}
예제 #3
0
void CChildLimitedDatasetColumnInfo::setColumn(HqlCppTranslator & translator, BuildCtx & ctx, IReferenceSelector * selector, IHqlExpression * value)
{
    if (sizeField)
        translator.throwError(HQLERR_CannotCreateSizedChildDataset);

    if (countField)
    {
        IHqlExpression * record = column->queryRecord();

        OwnedHqlExpr mappedCount = replaceSelector(countField, querySelfReference(), selector->queryExpr()->queryChild(0));
        Owned<IHqlCppDatasetBuilder> builder = translator.createLimitedDatasetBuilder(record, mappedCount);
        builder->buildDeclare(ctx);
        translator.buildDatasetAssign(ctx, builder, value);

        setColumnFromBuilder(translator, ctx, selector, builder);
    }
}
예제 #4
0
void CChildSetColumnInfo::setColumn(HqlCppTranslator & translator, BuildCtx & ctx, IReferenceSelector * selector, IHqlExpression * _value)
{
    OwnedHqlExpr address = getColumnAddress(translator, ctx, selector, boolType, 0);
    OwnedHqlExpr addressSize = getColumnAddress(translator, ctx, selector, sizetType, sizeof(bool));
    OwnedHqlExpr addressData = getColumnAddress(translator, ctx, selector, queryType(), sizeof(bool)+sizeof(size32_t));

    OwnedHqlExpr isAllTarget = convertAddressToValue(address, boolType);
    OwnedHqlExpr lengthTarget = convertAddressToValue(addressSize, sizetType);

    ITypeInfo * columnType = column->queryType();
    ITypeInfo * elementType = columnType->queryChildType();
    OwnedHqlExpr value = ensureExprType(_value, columnType);

    OwnedHqlExpr inlineSize;
    switch (value->getOperator())
    {
    case no_list:
        if ((value->numChildren() != 0) && ::isFixedSize(elementType))
            inlineSize.setown(getSizetConstant(value->numChildren() * elementType->getSize())); 
        break;
    }

    if (inlineSize)
    {
        checkAssignOk(translator, ctx, selector, inlineSize, sizeof(size32_t)+sizeof(bool));

        Owned<IHqlCppSetBuilder> builder = translator.createInlineSetBuilder(elementType, isAllTarget, inlineSize, addressData);
        builder->buildDeclare(ctx);

        translator.buildSetAssign(ctx, builder, value);

        CHqlBoundTarget boundTarget;
        boundTarget.length.set(lengthTarget);
        builder->buildFinish(ctx, boundTarget);
    }
    else
    {
        CHqlBoundExpr bound;
        if ((value->getOperator() == no_list) && value->numChildren())
        {
            CHqlBoundTarget tempTarget;
            translator.createTempFor(ctx, columnType, tempTarget, typemod_none, FormatNatural);
            translator.buildExprAssign(ctx, tempTarget, value);
            bound.setFromTarget(tempTarget);
        }
        else
            translator.buildExpr(ctx, value, bound);
        ensureSimpleLength(translator, ctx, bound);

        OwnedHqlExpr isAll = bound.getIsAll();
        OwnedHqlExpr length = translator.getBoundLength(bound);
        OwnedHqlExpr size = createValue(no_translated, LINK(sizetType), translator.getBoundSize(bound));
        checkAssignOk(translator, ctx, selector, size, sizeof(size32_t)+sizeof(bool));

        translator.assignBoundToTemp(ctx, isAllTarget, isAll);
        translator.assignBoundToTemp(ctx, lengthTarget, length);
        translator.buildBlockCopy(ctx, addressData, bound);

        ensureSimpleLength(translator, ctx, bound);
        OwnedHqlExpr boundSize = translator.getBoundSize(bound);
        associateSizeOf(ctx, selector, boundSize, sizeof(size32_t)+sizeof(bool));
    }
}