Examples with Referenced_Value org.eclipse.titan.designer.AST.TTCN3.values.Referenced_Value used on opensource projects

Example 1 with Referenced_Value

use of org.eclipse.titan.designer.AST.TTCN3.values.Referenced_Value in project titan.EclipsePlug-ins by eclipse.

the class SizeOfExpression method checkExpressionOperands.

/**
 * Checks the parameters of the expression and if they are valid in
 * their position in the expression or not.
 *
 * @param timestamp
 *                the timestamp of the actual semantic check cycle.
 * @param expectedValue
 *                the kind of value expected.
 * @param referenceChain
 *                a reference chain to detect cyclic references.
 *
 * @return the size of the expression, or -1 in case of error
 */
private long checkExpressionOperands(final CompilationTimeStamp timestamp, final Expected_Value_type expectedValue, final IReferenceChain referenceChain) {
    Expected_Value_type internalExpectedValue;
    if (Expected_Value_type.EXPECTED_DYNAMIC_VALUE.equals(expectedValue)) {
        internalExpectedValue = Expected_Value_type.EXPECTED_TEMPLATE;
    } else {
        internalExpectedValue = expectedValue;
    }
    ITTCN3Template template = templateInstance.getTemplateBody();
    template.setLoweridToReference(timestamp);
    template = template.getTemplateReferencedLast(timestamp, referenceChain);
    if (template.getIsErroneous(timestamp)) {
        setIsErroneous(true);
        return -1;
    }
    // Timer and port arrays are handled separately
    if (template.getTemplatetype() == Template_type.SPECIFIC_VALUE) {
        final SpecificValue_Template specValTempl = (SpecificValue_Template) template;
        IValue val = specValTempl.getSpecificValue();
        val.setMyGovernor(specValTempl.getMyGovernor());
        if (val.getValuetype() == Value_type.UNDEFINED_LOWERIDENTIFIER_VALUE) {
            val = val.setLoweridToReference(timestamp);
        }
        if (val != null && val.getValuetype() == Value_type.REFERENCED_VALUE) {
            final Referenced_Value referencedValue = (Referenced_Value) val;
            final Reference ref = referencedValue.getReference();
            final Assignment temporalAss = ref.getRefdAssignment(timestamp, true);
            if (temporalAss != null) {
                final Assignment_type asstype = temporalAss.getAssignmentType();
                ArrayDimensions dimensions;
                if (asstype == Assignment_type.A_PORT) {
                    dimensions = ((Def_Port) temporalAss).getDimensions();
                    return checkTimerPort(timestamp, ref, dimensions, temporalAss);
                } else if (asstype == Assignment_type.A_TIMER) {
                    dimensions = ((Def_Timer) temporalAss).getDimensions();
                    return checkTimerPort(timestamp, ref, dimensions, temporalAss);
                }
            }
        }
    }
    IType governor = templateInstance.getExpressionGovernor(timestamp, internalExpectedValue);
    if (governor == null) {
        final ITTCN3Template templ = template.setLoweridToReference(timestamp);
        governor = templ.getExpressionGovernor(timestamp, internalExpectedValue);
    }
    if (governor == null) {
        if (!template.getIsErroneous(timestamp)) {
            templateInstance.getLocation().reportSemanticError("Cannot determine the type of the argument in the `sizeof' operation. If type is known, use valueof(<type>: ...) as argument.");
        }
        setIsErroneous(true);
        return -1;
    }
    IsValueExpression.checkExpressionTemplateInstance(timestamp, this, templateInstance, governor, referenceChain, internalExpectedValue);
    if (isErroneous) {
        return -1;
    }
    IType type = governor.getTypeRefdLast(timestamp);
    switch(type.getTypetype()) {
        case TYPE_SEQUENCE_OF:
        case TYPE_SET_OF:
        case TYPE_TTCN3_SEQUENCE:
        case TYPE_TTCN3_SET:
        case TYPE_ASN1_SEQUENCE:
        case TYPE_ASN1_SET:
        case TYPE_ARRAY:
        case TYPE_OBJECTID:
        case TYPE_ROID:
        case TYPE_UNDEFINED:
            break;
        default:
            templateInstance.getLocation().reportSemanticError("Reference to a value or template of type record, record of, set, set of, objid or array was expected");
            setIsErroneous(true);
            return -1;
    }
    IValue value = null;
    Reference reference = null;
    Assignment assignment = null;
    List<ISubReference> subreferences = null;
    switch(template.getTemplatetype()) {
        case INDEXED_TEMPLATE_LIST:
            return -1;
        case TEMPLATE_REFD:
            reference = ((Referenced_Template) template).getReference();
            assignment = reference.getRefdAssignment(timestamp, false);
            subreferences = reference.getSubreferences();
            break;
        case TEMPLATE_LIST:
        case NAMED_TEMPLATE_LIST:
        case SUBSET_MATCH:
        case SUPERSET_MATCH:
            // compute later
            break;
        case SPECIFIC_VALUE:
            value = ((SpecificValue_Template) template).getSpecificValue().getValueRefdLast(timestamp, referenceChain);
            if (value != null) {
                switch(value.getValuetype()) {
                    case SEQUENCEOF_VALUE:
                    case SETOF_VALUE:
                    case ARRAY_VALUE:
                    case RELATIVEOBJECTIDENTIFIER_VALUE:
                    case OBJECTID_VALUE:
                    case SEQUENCE_VALUE:
                    case SET_VALUE:
                        break;
                    case REFERENCED_VALUE:
                        {
                            reference = ((Referenced_Value) value).getReference();
                            assignment = reference.getRefdAssignment(timestamp, false);
                            subreferences = reference.getSubreferences();
                            break;
                        }
                    default:
                        templateInstance.getLocation().reportSemanticError(MessageFormat.format("`sizeof'' operation is not applicable to `{0}''", value.createStringRepresentation()));
                        setIsErroneous(true);
                        return -1;
                }
            }
            break;
        default:
            templateInstance.getLocation().reportSemanticError(MessageFormat.format("`sizeof'' operation is not applicable to {0}", template.getTemplateTypeName()));
            setIsErroneous(true);
            return -1;
    }
    if (assignment != null) {
        if (assignment.getIsErroneous()) {
            setIsErroneous(true);
            return -1;
        }
        switch(assignment.getAssignmentType()) {
            case A_CONST:
                value = ((Def_Const) assignment).getValue();
                break;
            case A_EXT_CONST:
            case A_MODULEPAR:
            case A_MODULEPAR_TEMPLATE:
                if (Expected_Value_type.EXPECTED_CONSTANT.equals(internalExpectedValue)) {
                    templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to an (evaluable) constant value was expected instead of {0}", assignment.getDescription()));
                    setIsErroneous(true);
                    return -1;
                }
                break;
            case A_VAR:
            case A_PAR_VAL:
            case A_PAR_VAL_IN:
            case A_PAR_VAL_OUT:
            case A_PAR_VAL_INOUT:
                switch(internalExpectedValue) {
                    case EXPECTED_CONSTANT:
                        templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a constant value was expected instead of {0}", assignment.getDescription()));
                        setIsErroneous(true);
                        return -1;
                    case EXPECTED_STATIC_VALUE:
                        templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a static value was expected instead of {0}", assignment.getDescription()));
                        setIsErroneous(true);
                        return -1;
                    default:
                        break;
                }
                break;
            case A_TEMPLATE:
                template = ((Def_Template) assignment).getTemplate(timestamp);
                if (!Expected_Value_type.EXPECTED_TEMPLATE.equals(internalExpectedValue)) {
                    templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a value was expected instead of {0}", assignment.getDescription()));
                    setIsErroneous(true);
                    return -1;
                }
                break;
            case A_VAR_TEMPLATE:
            case A_PAR_TEMP_IN:
            case A_PAR_TEMP_OUT:
            case A_PAR_TEMP_INOUT:
                if (!Expected_Value_type.EXPECTED_TEMPLATE.equals(internalExpectedValue)) {
                    templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a value was expected instead of {0}", assignment.getDescription()));
                    setIsErroneous(true);
                    return -1;
                }
                break;
            case A_FUNCTION_RVAL:
            case A_EXT_FUNCTION_RVAL:
                switch(internalExpectedValue) {
                    case EXPECTED_CONSTANT:
                        templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a constant value was expected instead of the return value of {0}", assignment.getDescription()));
                        setIsErroneous(true);
                        return -1;
                    case EXPECTED_STATIC_VALUE:
                        templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a static value was expected instead of the return value of {0}", assignment.getDescription()));
                        setIsErroneous(true);
                        return -1;
                    default:
                        break;
                }
                break;
            case A_FUNCTION_RTEMP:
            case A_EXT_FUNCTION_RTEMP:
                if (!Expected_Value_type.EXPECTED_TEMPLATE.equals(internalExpectedValue)) {
                    templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a value was expected instead of a call of {0}, which returns a template", assignment.getDescription()));
                    setIsErroneous(true);
                    return -1;
                }
                break;
            case A_TIMER:
            case A_PORT:
                // were already checked separately.
                break;
            default:
                templateInstance.getLocation().reportSemanticError(MessageFormat.format("Reference to a {0} was expected instead of {1}", Expected_Value_type.EXPECTED_TEMPLATE.equals(internalExpectedValue) ? "value or template" : "value", assignment.getDescription()));
                setIsErroneous(true);
                return -1;
        }
        type = assignment.getType(timestamp).getFieldType(timestamp, reference, 1, Expected_Value_type.EXPECTED_DYNAMIC_VALUE, false);
        if (type == null || type.getIsErroneous(timestamp)) {
            setIsErroneous(true);
            return -1;
        }
        type = type.getTypeRefdLast(timestamp);
        switch(type.getTypetype()) {
            case TYPE_SEQUENCE_OF:
            case TYPE_SET_OF:
            case TYPE_TTCN3_SEQUENCE:
            case TYPE_TTCN3_SET:
            case TYPE_ASN1_SEQUENCE:
            case TYPE_ASN1_SET:
            case TYPE_ARRAY:
            case TYPE_OBJECTID:
            case TYPE_ROID:
            case TYPE_UNDEFINED:
                break;
            default:
                templateInstance.getLocation().reportSemanticError("Reference to a value or template of type record, record of, set, set of, objid or array was expected");
                setIsErroneous(true);
                return -1;
        }
    }
    // check for index overflows in subrefs if possible
    if (value != null) {
        switch(value.getValuetype()) {
            case SEQUENCEOF_VALUE:
                if (((SequenceOf_Value) value).isIndexed()) {
                    return -1;
                }
                break;
            case SETOF_VALUE:
                if (((SetOf_Value) value).isIndexed()) {
                    return -1;
                }
                break;
            case ARRAY_VALUE:
                if (((Array_Value) value).isIndexed()) {
                    return -1;
                }
                break;
            default:
                break;
        }
        /* The reference points to a constant.  */
        if (subreferences != null && !reference.hasUnfoldableIndexSubReference(timestamp)) {
            value = value.getReferencedSubValue(timestamp, reference, 1, referenceChain);
            if (value == null) {
                setIsErroneous(true);
                return -1;
            }
            value = value.getValueRefdLast(timestamp, referenceChain);
        } else {
            // stop processing
            value = null;
        }
    } else if (template != null) {
        /* The size of INDEXED_TEMPLATE_LIST nodes is unknown at compile
		         time.  Don't try to evaluate it at compile time.  */
        if (reference != null && reference.hasUnfoldableIndexSubReference(timestamp)) {
            return -1;
        }
        if (reference != null && subreferences != null) {
            template = template.getReferencedSubTemplate(timestamp, reference, referenceChain);
            if (template == null) {
                setIsErroneous(true);
                return -1;
            }
            template = template.getTemplateReferencedLast(timestamp);
        }
    }
    if (template != null) {
        if (template.getIsErroneous(timestamp)) {
            setIsErroneous(true);
            return -1;
        }
        switch(template.getTemplatetype()) {
            case TEMPLATE_REFD:
                template = null;
                break;
            case SPECIFIC_VALUE:
                value = ((SpecificValue_Template) template).getSpecificValue().getValueRefdLast(timestamp, referenceChain);
                template = null;
                break;
            case TEMPLATE_LIST:
            case NAMED_TEMPLATE_LIST:
            case SUBSET_MATCH:
            case SUPERSET_MATCH:
                break;
            default:
                // FIXME this can not happen
                templateInstance.getLocation().reportSemanticError(MessageFormat.format("`sizeof'' operation is not applicable to {0}", template.getTemplateTypeName()));
                setIsErroneous(true);
                return -1;
        }
    }
    if (value != null) {
        switch(value.getValuetype()) {
            case SEQUENCEOF_VALUE:
            case SETOF_VALUE:
            case ARRAY_VALUE:
            case RELATIVEOBJECTIDENTIFIER_VALUE:
            case OBJECTID_VALUE:
            case SEQUENCE_VALUE:
            case SET_VALUE:
                break;
            default:
                value = null;
                return -1;
        }
    }
    /* evaluation */
    if (Type_type.TYPE_ARRAY.equals(type.getTypetype())) {
        return ((Array_Type) type).getDimension().getSize();
    } else if (template != null) {
        return evaluateTemplate(template, timestamp);
    } else if (value != null) {
        return evaluateValue(value);
    } else {
        return -1;
    }
}

Example 2 with Referenced_Value

use of org.eclipse.titan.designer.AST.TTCN3.values.Referenced_Value in project titan.EclipsePlug-ins by eclipse.

the class IsBoundExpression method evaluateValue.

@Override
public /**
 * {@inheritDoc}
 */
IValue evaluateValue(final CompilationTimeStamp timestamp, final Expected_Value_type expectedValue, final IReferenceChain referenceChain) {
    if (lastTimeChecked != null && !lastTimeChecked.isLess(timestamp)) {
        return lastValue;
    }
    isErroneous = false;
    lastTimeChecked = timestamp;
    lastValue = this;
    if (templateInstance == null) {
        return lastValue;
    }
    checkExpressionOperands(timestamp, expectedValue, referenceChain);
    if (getIsErroneous(timestamp)) {
        return lastValue;
    }
    if (isUnfoldable(timestamp, referenceChain)) {
        return lastValue;
    }
    ITTCN3Template template = templateInstance.getTemplateBody();
    template = template.getTemplateReferencedLast(timestamp);
    boolean result = false;
    if (template.getTemplatetype() == Template_type.TEMPLATE_REFD) {
        final TTCN3Template last = template.getTemplateReferencedLast(timestamp);
        if (last != null && Template_type.SPECIFIC_VALUE.equals(last.getTemplatetype())) {
            result = ((SpecificValue_Template) last).getValue().evaluateIsbound(timestamp, ((Referenced_Template) template).getReference(), 1);
        }
    } else if (template.getTemplatetype() == Template_type.SPECIFIC_VALUE) {
        final IValue value = ((SpecificValue_Template) template).getValue();
        if (value.getValuetype() == Value_type.REFERENCED_VALUE) {
            result = value.evaluateIsbound(timestamp, ((Referenced_Value) value).getReference(), 1);
        } else {
            result = !value.getIsErroneous(timestamp);
        }
    }
    lastValue = new Boolean_Value(result);
    lastValue.copyGeneralProperties(this);
    return lastValue;
}

Example 3 with Referenced_Value

use of org.eclipse.titan.designer.AST.TTCN3.values.Referenced_Value in project titan.EclipsePlug-ins by eclipse.

the class IsBoundExpression method isUnfoldable.

@Override
public /**
 * {@inheritDoc}
 */
boolean isUnfoldable(final CompilationTimeStamp timestamp, final Expected_Value_type expectedValue, final IReferenceChain referenceChain) {
    if (templateInstance == null) {
        return true;
    }
    final ITTCN3Template template = templateInstance.getTemplateBody().setLoweridToReference(timestamp);
    if (templateInstance.getDerivedReference() != null) {
        return true;
    }
    if (Template_type.SPECIFIC_VALUE.equals(template.getTemplatetype())) {
        final IValue specificValue = ((SpecificValue_Template) template).getValue();
        if (Value_type.REFERENCED_VALUE.equals(specificValue.getValuetype())) {
            final Reference reference = ((Referenced_Value) specificValue).getReference();
            final Assignment ass = reference.getRefdAssignment(timestamp, false);
            if (ass == null) {
                return true;
            }
            switch(ass.getAssignmentType()) {
                case A_OBJECT:
                case A_OS:
                case A_CONST:
                case A_EXT_CONST:
                case A_MODULEPAR:
                case A_VAR:
                case A_FUNCTION_RVAL:
                case A_EXT_FUNCTION_RVAL:
                case A_PAR_VAL:
                case A_PAR_VAL_IN:
                case A_PAR_VAL_OUT:
                case A_PAR_VAL_INOUT:
                    break;
                default:
                    return true;
            }
            // TODO improve to better detect unbound
            // elements
            final IValue last = specificValue.getValueRefdLast(timestamp, expectedValue, null);
            if (last == null) {
                return true;
            }
            if (last == this) {
                return getIsErroneous(timestamp);
            }
            return last.isUnfoldable(timestamp, expectedValue, referenceChain);
        }
        return specificValue.isUnfoldable(timestamp, expectedValue, referenceChain);
    } else if (Template_type.TEMPLATE_REFD.equals(template.getTemplatetype())) {
        final Reference reference = ((Referenced_Template) template).getReference();
        final Assignment ass = reference.getRefdAssignment(timestamp, true);
        if (ass == null) {
            return true;
        }
        switch(ass.getAssignmentType()) {
            case A_TEMPLATE:
                break;
            default:
                return true;
        }
        // TODO improve to better detect unbound elements
        final TTCN3Template last = template.getTemplateReferencedLast(timestamp);
        if (last == null) {
            return true;
        }
        if (last == template) {
            return last.getIsErroneous(timestamp);
        }
        if (Template_type.SPECIFIC_VALUE.equals(last.getTemplatetype())) {
            return ((SpecificValue_Template) last).getValue().isUnfoldable(timestamp, expectedValue, referenceChain);
        }
    }
    return true;
}

Example 4 with Referenced_Value

use of org.eclipse.titan.designer.AST.TTCN3.values.Referenced_Value in project titan.EclipsePlug-ins by eclipse.

the class IsBoundExpression method checkExpressionTemplateInstance.

/**
 * Checks if the templateinstance parameter (which is a parameter of the
 * expression parameter) is actually a constant or static value or not.
 *
 * @param timestamp
 *                the timestamp of the actual semantic check cycle.
 * @param expression
 *                the expression to report the possible errors to.
 * @param instance
 *                the template instance parameter of the expression to
 *                be checked.
 * @param type
 *                the type against which the template instance shall be
 *                checked.
 * @param referenceChain
 *                the reference chain to detect circular references.
 * @param expectedValue
 *                the expected value of the template instance.
 */
private static void checkExpressionTemplateInstance(final CompilationTimeStamp timestamp, final Expression_Value expression, final TemplateInstance instance, final IType type, final IReferenceChain referenceChain, final Expected_Value_type expectedValue) {
    Expected_Value_type internalExpectation;
    if (Expected_Value_type.EXPECTED_DYNAMIC_VALUE.equals(expectedValue)) {
        internalExpectation = Expected_Value_type.EXPECTED_TEMPLATE;
    } else {
        internalExpectation = expectedValue;
    }
    final ITTCN3Template body = instance.getTemplateBody();
    if (Template_type.TEMPLATE_REFD.equals(body.getTemplatetype())) {
        ((Referenced_Template) body).getReference().setUsedInIsbound();
    } else if (Template_type.SPECIFIC_VALUE.equals(body.getTemplatetype())) {
        final IValue value = ((SpecificValue_Template) body).getValue();
        if (value != null && Value_type.REFERENCED_VALUE.equals(value.getValuetype())) {
            ((Referenced_Value) value).getReference().setUsedInIsbound();
        }
    }
    instance.check(timestamp, type);
    if (!Expected_Value_type.EXPECTED_TEMPLATE.equals(internalExpectation) && instance.getDerivedReference() != null) {
        if (Expected_Value_type.EXPECTED_CONSTANT.equals(internalExpectation)) {
            instance.getLocation().reportSemanticError(CONSTEXPECTED1);
        } else {
            instance.getLocation().reportSemanticError(STATICEXPECTED1);
        }
        expression.setIsErroneous(true);
    }
    ITTCN3Template template = instance.getTemplateBody();
    if (template.getIsErroneous(timestamp)) {
        expression.setIsErroneous(true);
        return;
    }
    switch(template.getTemplatetype()) {
        case TEMPLATE_REFD:
            if (Expected_Value_type.EXPECTED_TEMPLATE.equals(internalExpectation)) {
                template = template.getTemplateReferencedLast(timestamp, referenceChain);
                if (template.getIsErroneous(timestamp)) {
                    expression.setIsErroneous(true);
                }
            } else {
                if (Expected_Value_type.EXPECTED_CONSTANT.equals(internalExpectation)) {
                    instance.getLocation().reportSemanticError(MessageFormat.format(CONSTEXPECTED2, ((Referenced_Template) template).getReference().getRefdAssignment(timestamp, true).getDescription()));
                } else {
                    instance.getLocation().reportSemanticError(MessageFormat.format(STATICEXPECTED2, ((Referenced_Template) template).getReference().getRefdAssignment(timestamp, true).getDescription()));
                }
                expression.setIsErroneous(true);
            }
            break;
        case SPECIFIC_VALUE:
            final IValue tempValue = ((SpecificValue_Template) template).getSpecificValue();
            switch(tempValue.getValuetype()) {
                case REFERENCED_VALUE:
                    type.checkThisValueRef(timestamp, tempValue);
                    break;
                case EXPRESSION_VALUE:
                    tempValue.getValueRefdLast(timestamp, referenceChain);
                    break;
                default:
                    break;
            }
            if (tempValue.getIsErroneous(timestamp)) {
                expression.setIsErroneous(true);
            }
            break;
        default:
            break;
    }
}

Example 5 with Referenced_Value

use of org.eclipse.titan.designer.AST.TTCN3.values.Referenced_Value in project titan.EclipsePlug-ins by eclipse.

the class IsBoundExpression method generateCodeExpressionExpression.

@Override
public /**
 * {@inheritDoc}
 */
void generateCodeExpressionExpression(final JavaGenData aData, final ExpressionStruct expression) {
    final TTCN3Template template = templateInstance.getTemplateBody();
    if (Template_type.SPECIFIC_VALUE.equals(template.getTemplatetype())) {
        final IValue value = ((SpecificValue_Template) template).getSpecificValue();
        if (Value_type.REFERENCED_VALUE.equals(value.getValuetype())) {
            final Reference reference = ((Referenced_Value) value).getReference();
            if (reference != null) {
                final Assignment assignment = reference.getRefdAssignment(CompilationTimeStamp.getBaseTimestamp(), false);
                if (assignment != null) {
                    switch(assignment.getAssignmentType()) {
                        case A_TEMPLATE:
                        case A_VAR_TEMPLATE:
                        case A_MODULEPAR_TEMPLATE:
                        case A_EXT_FUNCTION_RTEMP:
                        case A_FUNCTION_RTEMP:
                        case A_PAR_TEMP_IN:
                        case A_PAR_TEMP_OUT:
                        case A_PAR_TEMP_INOUT:
                            reference.generateCodeIsPresentBoundChosen(aData, expression, true, getOperationType(), null);
                            return;
                        default:
                            break;
                    }
                }
                reference.generateCodeIsPresentBoundChosen(aData, expression, false, getOperationType(), null);
                return;
            }
        } else {
            // FIXME cast_needed case
            value.generateCodeExpressionMandatory(aData, expression, true);
        }
    } else if (Template_type.TEMPLATE_REFD.equals(template.getTemplatetype())) {
        final Reference reference = ((Referenced_Template) template).getReference();
        if (reference != null) {
            reference.generateCodeIsPresentBoundChosen(aData, expression, true, getOperationType(), null);
            return;
        }
    } else {
        templateInstance.generateCode(aData, expression, Restriction_type.TR_NONE);
    }
    expression.expression.append(".isBound()");
}