CChildLimitedDatasetColumnInfo::CChildLimitedDatasetColumnInfo(CContainerInfo * _container, CMemberInfo * _prior, IHqlExpression * _column, RecordOffsetMap & map, unsigned defaultMaxRecordSize) : CColumnInfo(_container, _prior, _column) { IHqlExpression * count = column->queryAttribute(countAtom); if (count) countField.setown(foldHqlExpression(column->queryAttribute(countAtom)->queryChild(0))); else { IHqlExpression * size = column->queryAttribute(sizeofAtom); if (size) sizeField.setown(foldHqlExpression(size->queryChild(0))); else countField.setown(createConstantOne()); } if (countField) countField.setown(ensureExprType(countField, sizetType)); if (sizeField) sizeField.setown(ensureExprType(sizeField, sizetType)); ColumnToOffsetMap * offsetMap = map.queryMapping(column->queryRecord(), defaultMaxRecordSize); maxChildSize = offsetMap->getMaxSize(); fixedChildSize = offsetMap->isFixedWidth() ? maxChildSize : UNKNOWN_LENGTH; }
void ViewFieldECLTransformer::transform(unsigned & lenTarget, char * & target, unsigned lenSource, const char * source, const HqlExprArray & extraArgs) { Owned<ITypeInfo> sourceType = makeUtf8Type(lenSource, 0); IValue * sourceValue = createUtf8Value(source, LINK(sourceType)); OwnedHqlExpr sourceExpr = createConstant(sourceValue); HqlExprArray actuals; actuals.append(*LINK(sourceExpr)); appendArray(actuals, extraArgs); Owned<IErrorReceiver> errorReporter = createThrowingErrorReceiver(); OwnedHqlExpr call = createBoundFunction(errorReporter, function, actuals, NULL, true); OwnedHqlExpr castValue = ensureExprType(call, utf8Type); OwnedHqlExpr folded = quickFoldExpression(castValue, NULL, 0); IValue * foldedValue = folded->queryValue(); assertex(foldedValue); unsigned len = foldedValue->queryType()->getStringLen(); const char * data = static_cast<const char *>(foldedValue->queryValue()); unsigned size = rtlUtf8Size(len, data); lenTarget = len; target = (char *)rtlMalloc(size); memcpy(target, data, size); }
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)); } }