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

Example 1 with ValueofExpression

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

the class Port_Utility method checkComponentReference.

/**
 * Checks a reference to see if it really references a valid component
 * type.
 *
 * @param timestamp
 *                the timestamp of the actual semantic check cycle.
 * @param source
 *                the source statement to report errors to.
 * @param value
 *                the value reference to check.
 * @param allowMtc
 *                tells if the mtc component is allowed or not.
 * @param allowSystem
 *                tells if the system component is allowed or not.
 *
 * @return the referenced component type, or null if there were
 *         problems.
 */
public static Component_Type checkComponentReference(final CompilationTimeStamp timestamp, final Statement source, final IValue value, final boolean allowMtc, final boolean allowSystem) {
    if (source.getMyStatementBlock() != null && source.getMyStatementBlock().getMyDefinition() == null) {
        source.getLocation().reportSemanticError(COMPONENTOPINCONTROLPART);
    }
    if (value == null || value.getIsErroneous(timestamp)) {
        return null;
    }
    final IValue last = value.getValueRefdLast(timestamp, Expected_Value_type.EXPECTED_DYNAMIC_VALUE, null);
    switch(last.getValuetype()) {
        case REFERENCED_VALUE:
            break;
        case TTCN3_NULL_VALUE:
            value.getLocation().reportSemanticError(MessageFormat.format(NULLCOMPONENTREFERENCE, source.getStatementName()));
            break;
        case EXPRESSION_VALUE:
            final Expression_Value expression = (Expression_Value) last;
            switch(expression.getOperationType()) {
                case APPLY_OPERATION:
                    if (!Type_type.TYPE_COMPONENT.equals(last.getExpressionReturntype(timestamp, Expected_Value_type.EXPECTED_DYNAMIC_VALUE))) {
                        value.getLocation().reportSemanticError(VALUERETURNEXPECTED);
                    }
                    break;
                case COMPONENT_NULL_OPERATION:
                    value.getLocation().reportSemanticError(MessageFormat.format(NULLCOMPONENTREFERENCE, source.getStatementName()));
                    break;
                case MTC_COMPONENT_OPERATION:
                    if (!allowMtc) {
                        value.getLocation().reportSemanticError(MessageFormat.format(MTCCOMPONENTREFERENCE, source.getStatementName()));
                    }
                    break;
                case SYSTEM_COMPONENT_OPERATION:
                    if (!allowSystem) {
                        value.getLocation().reportSemanticError(MessageFormat.format(SYSTEMCOMPONENTREFERENCE, source.getStatementName()));
                    }
                    break;
                case SELF_COMPONENT_OPERATION:
                    break;
                case COMPONENT_CREATE_OPERATION:
                    break;
                case VALUEOF_OPERATION:
                    final IReferenceChain referenceChain = ReferenceChain.getInstance(IReferenceChain.CIRCULARREFERENCE, true);
                    ((ValueofExpression) expression).evaluateValue(timestamp, Expected_Value_type.EXPECTED_DYNAMIC_VALUE, referenceChain);
                    referenceChain.release();
                    break;
                default:
                    value.getLocation().reportSemanticError(COMPONENTREFERENCEEXPECTED);
                    return null;
            }
            break;
        default:
            value.getLocation().reportSemanticError(COMPONENTREFERENCEEXPECTED);
            return null;
    }
    IType result = value.getExpressionGovernor(timestamp, Expected_Value_type.EXPECTED_DYNAMIC_VALUE);
    if (result == null) {
        return null;
    }
    result = result.getTypeRefdLast(timestamp);
    if (result.getIsErroneous(timestamp)) {
        return null;
    } else if (Type_type.TYPE_COMPONENT.equals(result.getTypetype())) {
        return (Component_Type) result;
    }
    value.getLocation().reportSemanticError(MessageFormat.format(COMPONENTTYPEMISMATCH, result.getTypename()));
    return null;
}

Example 2 with ValueofExpression

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

the class UnnecessaryValueof method process.

@Override
public void process(final IVisitableNode node, final Problems problems) {
    if (node instanceof ValueofExpression) {
        final ValueofExpression exp = (ValueofExpression) node;
        final CompilationTimeStamp stamp = CompilationTimeStamp.getBaseTimestamp();
        if (exp.getIsErroneous(stamp) || exp.isUnfoldable(stamp, null)) {
            return;
        }
        final TemplateInstance inst = exp.getTemplateInstance();
        if (inst != null && inst.getDerivedReference() == null && inst.getTemplateBody().isValue(stamp)) {
            final String msg = MessageFormat.format(TEXT, inst.getTemplateBody().getValue().createStringRepresentation());
            problems.report(exp.getLocation(), msg);
        }
    }
}