Examples with ISubReference org.eclipse.titan.designer.AST.ISubReference used on opensource projects

Example 26 with ISubReference

use of org.eclipse.titan.designer.AST.ISubReference in project titan.EclipsePlug-ins by eclipse.

the class Def_Timer method hasDefaultDuration.

/**
 * Returns false if it is sure that the timer referred by array indices
 * reference does not have a default duration. Otherwise it returns
 * true.
 *
 * @param timestamp
 *                the timestamp of the actual semantic check cycle
 * @param reference
 *                might be NULL when examining a single timer.
 *
 * @return true if the timer has a default duration, false otherwise.
 */
public boolean hasDefaultDuration(final CompilationTimeStamp timestamp, final Reference reference) {
    if (defaultDuration == null) {
        return false;
    } else if (dimensions == null || reference == null) {
        return true;
    }
    IValue v = defaultDuration;
    final List<ISubReference> subreferences = reference.getSubreferences();
    final int nofDimensions = dimensions.size();
    final int nofReferences = subreferences.size() - 1;
    final int upperLimit = (nofDimensions < nofReferences) ? nofDimensions : nofReferences;
    for (int i = 0; i < upperLimit; i++) {
        v = v.getValueRefdLast(timestamp, null);
        if (Value_type.SEQUENCEOF_VALUE.equals(v.getValuetype())) {
            final ISubReference ref = subreferences.get(i + 1);
            if (!Subreference_type.arraySubReference.equals(ref.getReferenceType())) {
                return true;
            }
            final IValue index = ((ArraySubReference) ref).getValue();
            if (!Value_type.INTEGER_VALUE.equals(index.getValuetype())) {
                return true;
            }
            final long realIndex = ((Integer_Value) index).getValue() - dimensions.get(i).getOffset();
            if (realIndex >= 0 && realIndex < ((SequenceOf_Value) v).getNofComponents()) {
                v = ((SequenceOf_Value) v).getValueByIndex((int) realIndex);
            }
        }
    }
    return !Value_type.NOTUSED_VALUE.equals(v.getValuetype());
}

Example 27 with ISubReference

use of org.eclipse.titan.designer.AST.ISubReference in project titan.EclipsePlug-ins by eclipse.

the class For_Loop_Definitions method check.

@Override
public /**
 * {@inheritDoc}
 */
void check(final CompilationTimeStamp timestamp) {
    if (lastCompilationTimeStamp != null && !lastCompilationTimeStamp.isLess(timestamp)) {
        return;
    }
    lastCompilationTimeStamp = timestamp;
    lastUniquenessCheckTimeStamp = timestamp;
    if (definitionMap == null) {
        definitionMap = new HashMap<String, Definition>(definitions.size());
    }
    definitionMap.clear();
    String definitionName;
    Definition definition;
    Identifier identifier;
    for (int i = 0, size = definitions.size(); i < size; i++) {
        definition = definitions.get(i);
        identifier = definition.getIdentifier();
        definitionName = identifier.getName();
        if (definitionMap.containsKey(definitionName)) {
            final Location otherLocation = definitionMap.get(definitionName).getIdentifier().getLocation();
            otherLocation.reportSingularSemanticError(MessageFormat.format(DUPLICATEDEFINITIONFIRST, identifier.getDisplayName()));
            identifier.getLocation().reportSemanticError(MessageFormat.format(DUPLICATEDEFINITIONREPEATED, identifier.getDisplayName()));
        } else {
            definitionMap.put(definitionName, definition);
            if (parentScope != null && definition.getLocation() != null) {
                if (parentScope.hasAssignmentWithId(timestamp, identifier)) {
                    definition.getLocation().reportSemanticError(MessageFormat.format(StatementBlock.HIDINGSCOPEELEMENT, identifier.getDisplayName()));
                    final List<ISubReference> subReferences = new ArrayList<ISubReference>();
                    subReferences.add(new FieldSubReference(identifier));
                    final Reference reference = new Reference(null, subReferences);
                    final Assignment assignment = parentScope.getAssBySRef(timestamp, reference);
                    if (assignment != null && assignment.getLocation() != null) {
                        assignment.getLocation().reportSingularSemanticError(MessageFormat.format(StatementBlock.HIDDENSCOPEELEMENT, identifier.getDisplayName()));
                    }
                } else if (parentScope.isValidModuleId(identifier)) {
                    definition.getLocation().reportSemanticWarning(MessageFormat.format(StatementBlock.HIDINGMODULEIDENTIFIER, identifier.getDisplayName()));
                }
            }
        }
        definition.check(timestamp);
    }
}

Example 28 with ISubReference

use of org.eclipse.titan.designer.AST.ISubReference in project titan.EclipsePlug-ins by eclipse.

the class FormalParameterList method check.

public final void check(final CompilationTimeStamp timestamp, final Assignment_type definitionType) {
    if (lastTimeChecked != null && !lastTimeChecked.isLess(timestamp)) {
        return;
    }
    minimumNofParameters = 0;
    isStartable = true;
    for (int i = 0, size = parameters.size(); i < size; i++) {
        FormalParameter parameter = parameters.get(i);
        final Identifier identifier = parameter.getIdentifier();
        if (parentScope != null) {
            if (parentScope.hasAssignmentWithId(timestamp, identifier)) {
                parameter.getLocation().reportSemanticError(MessageFormat.format(HIDINGSCOPEELEMENT, identifier.getDisplayName()));
                parentScope.hasAssignmentWithId(timestamp, identifier);
                final List<ISubReference> subReferences = new ArrayList<ISubReference>();
                subReferences.add(new FieldSubReference(identifier));
                final Reference reference = new Reference(null, subReferences);
                final Assignment assignment = parentScope.getAssBySRef(timestamp, reference);
                if (assignment != null && assignment.getLocation() != null) {
                    assignment.getLocation().reportSingularSemanticWarning(MessageFormat.format(HIDDENSCOPEELEMENT, identifier.getDisplayName()));
                }
            } else if (parentScope.isValidModuleId(identifier)) {
                parameter.getLocation().reportSemanticWarning(MessageFormat.format(HIDINGMODULEIDENTIFIER, identifier.getDisplayName()));
            }
        }
        parameter.check(timestamp);
        if (parameter.getAssignmentType() != parameter.getRealAssignmentType()) {
            parameter = parameter.setParameterType(parameter.getRealAssignmentType());
            parameters.set(i, parameter);
        }
        if (Assignment_type.A_TEMPLATE.semanticallyEquals(definitionType)) {
            if (!Assignment_type.A_PAR_VAL_IN.semanticallyEquals(parameter.getAssignmentType()) && !Assignment_type.A_PAR_TEMP_IN.semanticallyEquals(parameter.getAssignmentType())) {
                parameter.getLocation().reportSemanticError("A template cannot have " + parameter.getAssignmentName());
            }
        } else if (Assignment_type.A_TESTCASE.semanticallyEquals(definitionType)) {
            if (Assignment_type.A_PAR_TIMER.semanticallyEquals(parameter.getAssignmentType()) && Assignment_type.A_PAR_PORT.semanticallyEquals(parameter.getAssignmentType())) {
                parameter.getLocation().reportSemanticError("A testcase cannot have " + parameter.getAssignmentName());
            }
        } else {
        // everything is allowed for functions and altsteps
        }
        // startability check
        switch(parameter.getAssignmentType()) {
            case A_PAR_VAL:
            case A_PAR_VAL_IN:
            case A_PAR_VAL_OUT:
            case A_PAR_VAL_INOUT:
            case A_PAR_TEMP_IN:
            case A_PAR_TEMP_OUT:
            case A_PAR_TEMP_INOUT:
                {
                    final IType tempType = parameter.getType(timestamp);
                    if (isStartable && tempType != null && tempType.isComponentInternal(timestamp)) {
                        isStartable = false;
                    }
                    break;
                }
            default:
                isStartable = false;
        }
        if (!parameter.hasDefaultValue()) {
            minimumNofParameters = i + 1;
        }
    }
    if (parameters.size() > reportTooManyParametersSize) {
        getLocation().reportConfigurableSemanticProblem(reportTooManyParameters, MessageFormat.format(TOOMANYPARAMETERS, reportTooManyParametersSize));
    }
    checkUniqueness(timestamp);
    lastTimeChecked = timestamp;
}

Example 29 with ISubReference

use of org.eclipse.titan.designer.AST.ISubReference in project titan.EclipsePlug-ins by eclipse.

the class AltGuards method generateCodeAlt.

/**
 * Generate code for an alt
 *
 * @param aData the structure to put imports into and get temporal variable names from.
 * @param source the source code generated
 */
public void generateCodeAlt(final JavaGenData aData, final StringBuilder source) {
    aData.addBuiltinTypeImport("TitanAlt_Status");
    boolean labelNeeded = hasRepeat;
    boolean hasElseBranch = false;
    for (int i = 0; i < altGuards.size(); i++) {
        final AltGuard altGuard = altGuards.get(i);
        switch(altGuard.getType()) {
            case AG_OP:
                if (((Operation_Altguard) altGuard).getGuardStatement().canRepeat()) {
                    labelNeeded = true;
                }
                break;
            case AG_REF:
            case AG_INVOKE:
                labelNeeded = true;
                break;
            case AG_ELSE:
                hasElseBranch = true;
                break;
            default:
                ErrorReporter.INTERNAL_ERROR("unknown altguard type encountered `" + getFullName() + "''");
                return;
        }
        if (hasElseBranch) {
            break;
        }
    }
    // if there is no [else] branch the defaults may return ALT_REPEAT
    if (!hasElseBranch) {
        labelNeeded = true;
    }
    // opening bracket of the statement block
    label = aData.getTemporaryVariableName();
    if (labelNeeded) {
        source.append(label).append(":\n");
    }
    source.append("for ( ; ; ) {\n");
    // temporary variables used for caching of status codes
    for (int i = 0; i < altGuards.size(); i++) {
        final AltGuard altGuard = altGuards.get(i);
        if (altGuard.getType().equals(altguard_type.AG_ELSE)) {
            break;
        }
        source.append(MessageFormat.format("TitanAlt_Status {0}_alt_flag_{1} = ", label, i));
        if (altGuard.getGuardExpression() == null) {
            source.append("TitanAlt_Status.ALT_MAYBE");
        } else {
            source.append("TitanAlt_Status.ALT_UNCHECKED");
        }
        source.append(";\n");
    }
    if (!hasElseBranch) {
        source.append(MessageFormat.format("TitanAlt_Status {0}_default_flag = TitanAlt_Status.ALT_MAYBE;\n", label));
    }
    // the first snapshot is taken in non-blocking mode
    aData.addCommonLibraryImport("TTCN_Snapshot");
    source.append("TTCN_Snapshot.takeNew(false);\n");
    // and opening infinite for() loop
    source.append("for ( ; ; ) {\n");
    for (int i = 0; i < altGuards.size(); i++) {
        final AltGuard altGuard = altGuards.get(i);
        final altguard_type altGuardType = altGuard.getType();
        if (altGuardType.equals(altguard_type.AG_ELSE)) {
            source.append("TTCN_Snapshot.elseBranchReached();\n");
            StatementBlock block = altGuard.getStatementBlock();
            if (block.getSize() > 0) {
                source.append("{\n");
                // FIXME handle debugger
                block.generateCode(aData, source);
                source.append("}\n");
            }
            if (block.hasReturn(CompilationTimeStamp.getBaseTimestamp()) != ReturnStatus_type.RS_YES) {
                source.append("break;\n");
            }
            // do not generate code for further branches
            break;
        } else {
            final IValue guardExpression = altGuard.getGuardExpression();
            if (guardExpression != null) {
                source.append(MessageFormat.format("if ({0}_alt_flag_{1} == TitanAlt_Status.ALT_UNCHECKED) '{'\n", label, i));
                guardExpression.getLocation().update_location_object(aData, source);
                final ExpressionStruct expression = new ExpressionStruct();
                guardExpression.generateCodeExpression(aData, expression, true);
                source.append(expression.preamble);
                source.append(MessageFormat.format("if(TitanBoolean.getNative({0})) '{'\n", expression.expression));
                source.append(MessageFormat.format("{0}_alt_flag_{1} = TitanAlt_Status.ALT_MAYBE;\n", label, i));
                source.append("} else {\n");
                source.append(MessageFormat.format("{0}_alt_flag_{1} = TitanAlt_Status.ALT_NO;\n", label, i));
                source.append("}\n");
                source.append("}\n");
            }
            source.append(MessageFormat.format("if ({0}_alt_flag_{1} == TitanAlt_Status.ALT_MAYBE) '{'\n", label, i));
            boolean canRepeat = false;
            final ExpressionStruct expression = new ExpressionStruct();
            expression.expression.append(MessageFormat.format("{0}_alt_flag_{1} = ", label, i));
            switch(altGuardType) {
                case AG_OP:
                    {
                        // the guard operation is a receiving statement
                        final Statement statement = ((Operation_Altguard) altGuard).getGuardStatement();
                        altGuard.getLocation().update_location_object(aData, source);
                        statement.generateCodeExpression(aData, expression);
                        canRepeat = statement.canRepeat();
                    }
                    break;
                case AG_REF:
                    {
                        // the guard operation is an altstep instance
                        final Reference reference = ((Referenced_Altguard) altGuard).getGuardReference();
                        altGuard.getLocation().update_location_object(aData, source);
                        final Assignment altstep = reference.getRefdAssignment(CompilationTimeStamp.getBaseTimestamp(), false);
                        expression.expression.append(MessageFormat.format("{0}_instance(", altstep.getGenNameFromScope(aData, source, myScope, "")));
                        final ISubReference subreference = reference.getSubreferences().get(0);
                        ((ParameterisedSubReference) subreference).getActualParameters().generateCodeAlias(aData, expression);
                        source.append(')');
                        canRepeat = true;
                    }
                    break;
                case AG_INVOKE:
                    {
                        // the guard operation is an altstep invocation
                        altGuard.getLocation().update_location_object(aData, source);
                        ((Invoke_Altguard) altGuard).generateCodeInvokeInstance(aData, expression);
                        canRepeat = true;
                    }
                    break;
                default:
                    ErrorReporter.INTERNAL_ERROR("unknown altguard type encountered `" + getFullName() + "''");
                    return;
            }
            expression.mergeExpression(source);
            if (canRepeat) {
                source.append(MessageFormat.format("if ({0}_alt_flag_{1} == TitanAlt_Status.ALT_REPEAT) continue {2};\n", label, i, label));
            }
            if (altGuardType.equals(altguard_type.AG_REF) || altGuardType.equals(altguard_type.AG_INVOKE)) {
                source.append(MessageFormat.format("if ({0}_alt_flag_{1} == TitanAlt_Status.ALT_BREAK) break;\n", label, i));
            }
            // execution of statement block if the guard was successful
            source.append(MessageFormat.format("if ({0}_alt_flag_{1} == TitanAlt_Status.ALT_YES) ", label, i));
            final StatementBlock block = altGuard.getStatementBlock();
            if (block != null && block.getSize() > 0) {
                source.append("{\n");
                // TODO handle debugger
                block.generateCode(aData, source);
                if (!ReturnStatus_type.RS_YES.equals(block.hasReturn(CompilationTimeStamp.getBaseTimestamp()))) {
                    source.append("break;\n");
                }
                source.append("}\n");
            } else {
                source.append("break;\n");
            }
            source.append("}\n");
        }
    }
    if (!hasElseBranch) {
        aData.addCommonLibraryImport("TTCN_Default");
        source.append(MessageFormat.format("if ({0}_default_flag == TitanAlt_Status.ALT_MAYBE) '{'\n", label));
        source.append(MessageFormat.format("{0}_default_flag = TTCN_Default.tryAltsteps();\n", label));
        source.append(MessageFormat.format("if ({0}_default_flag == TitanAlt_Status.ALT_YES || {0}_default_flag == TitanAlt_Status.ALT_BREAK) '{'\n", label));
        source.append("break;\n");
        source.append(MessageFormat.format("} else if({0}_default_flag == TitanAlt_Status.ALT_REPEAT) '{'\n", label));
        source.append(MessageFormat.format("continue {0};\n", label));
        source.append("}\n");
        source.append("}\n");
        getLocation().update_location_object(aData, source);
        // error handling and taking the next snapshot in blocking mode
        source.append("if ( ");
        for (int i = 0; i < altGuards.size(); i++) {
            source.append(MessageFormat.format("{0}_alt_flag_{1} == TitanAlt_Status.ALT_NO &&", label, i));
        }
        source.append(MessageFormat.format("{0}_default_flag == TitanAlt_Status.ALT_NO) '{'\n", label));
        source.append("throw new TtcnError(\"None of the branches can be chosen in the alt statement");
        // TODO translate_string
        if (location != null && location.getFile() != null) {
            source.append(MessageFormat.format("in file {0} at line {1}", location.getFile().getName(), location.getLine()));
        }
        source.append("\");\n");
        source.append("}\n");
        source.append("TTCN_Snapshot.takeNew(true);\n");
    }
    source.append("}\n");
    source.append("break;\n");
    source.append("}\n");
}

Example 30 with ISubReference

use of org.eclipse.titan.designer.AST.ISubReference in project titan.EclipsePlug-ins by eclipse.

the class AltGuards method generateCodeAltstep.

/**
 * Generate code for an altstep
 *
 * @param aData the structure to put imports into and get temporal variable names from.
 * @param source the source code generated
 */
public void generateCodeAltstep(final JavaGenData aData, final StringBuilder source) {
    final boolean hasElse = hasElse();
    if (!hasElse) {
        source.append("TitanAlt_Status returnValue = TitanAlt_Status.ALT_NO;\n");
    }
    for (int i = 0; i < altGuards.size(); i++) {
        final AltGuard altGuard = altGuards.get(i);
        final altguard_type altGuardType = altGuard.getType();
        if (altGuardType.equals(altguard_type.AG_ELSE)) {
            source.append("TTCN_Snapshot.elseBranchReached();\n");
            final StatementBlock block = altGuard.getStatementBlock();
            if (block.getSize() > 0) {
                source.append("{\n");
                // TODO debugger
                block.generateCode(aData, source);
                source.append("}\n");
            }
            if (block.hasReturn(CompilationTimeStamp.getBaseTimestamp()) != ReturnStatus_type.RS_YES) {
                source.append("return TitanAlt_Status.ALT_YES;\n");
            }
            break;
        } else {
            final AtomicInteger blockCount = new AtomicInteger(0);
            final IValue guardExpression = altGuard.getGuardExpression();
            if (guardExpression != null) {
                guardExpression.getLocation().update_location_object(aData, source);
                guardExpression.generateCodeTmp(aData, source, "if (", blockCount);
                source.append(") {\n");
                blockCount.incrementAndGet();
            }
            boolean canRepeat = false;
            final ExpressionStruct expression = new ExpressionStruct();
            switch(altGuardType) {
                case AG_OP:
                    {
                        final Statement statement = ((Operation_Altguard) altGuard).getGuardStatement();
                        altGuard.getLocation().update_location_object(aData, source);
                        statement.generateCodeExpression(aData, expression);
                        canRepeat = statement.canRepeat();
                    }
                    break;
                case AG_REF:
                    {
                        // the guard operation is an altstep instance
                        final Reference reference = ((Referenced_Altguard) altGuard).getGuardReference();
                        altGuard.getLocation().update_location_object(aData, source);
                        final Assignment altstep = reference.getRefdAssignment(CompilationTimeStamp.getBaseTimestamp(), false);
                        expression.expression.append(MessageFormat.format("{0}_instance(", altstep.getGenNameFromScope(aData, source, myScope, "")));
                        final ISubReference subreference = reference.getSubreferences().get(0);
                        ((ParameterisedSubReference) subreference).getActualParameters().generateCodeAlias(aData, expression);
                        source.append(')');
                        canRepeat = true;
                    }
                    break;
                case AG_INVOKE:
                    {
                        // the guard operation is an altstep invocation
                        altGuard.getLocation().update_location_object(aData, source);
                        ((Invoke_Altguard) altGuard).generateCodeInvokeInstance(aData, expression);
                        canRepeat = true;
                    }
                    break;
                default:
                    ErrorReporter.INTERNAL_ERROR("unknown altguard type encountered `" + getFullName() + "''");
                    return;
            }
            if (expression.preamble.length() > 0 || expression.postamble.length() > 0) {
                if (blockCount.get() == 0) {
                    source.append("{\n");
                    blockCount.set(blockCount.get() + 1);
                }
                final String tempId = aData.getTemporaryVariableName();
                source.append(MessageFormat.format("TitanAlt_Status {0};\n", tempId));
                source.append("{\n");
                source.append(expression.preamble);
                source.append(MessageFormat.format("{0}.assign({1});\n", tempId, expression.expression));
                source.append(expression.postamble);
                source.append("}\n");
                source.append(MessageFormat.format("switch ({0}) '{'\n", tempId));
            } else {
                source.append(MessageFormat.format("switch ({0}) '{'\n", expression.expression));
            }
            source.append("case ALT_YES:\n");
            final StatementBlock block = altGuard.getStatementBlock();
            if (block != null && block.getSize() > 0) {
                source.append("{\n");
                // TODO handle debugger
                block.generateCode(aData, source);
                source.append("}\n");
            }
            if (block == null || block.hasReturn(CompilationTimeStamp.getBaseTimestamp()) != ReturnStatus_type.RS_YES) {
                source.append("return TitanAlt_Status.ALT_YES;\n");
            }
            if (canRepeat) {
                source.append("case ALT_REPEAT:\n");
                source.append("return TitanAlt_Status.ALT_REPEAT;\n");
            }
            if (altGuardType == altguard_type.AG_REF || altGuardType == altguard_type.AG_INVOKE) {
                source.append("case ALT_BREAK:\n");
                source.append("return TitanAlt_Status.ALT_BREAK;\n");
            }
            if (!hasElse) {
                source.append("case ALT_MAYBE:\n");
                source.append("returnValue = TitanAlt_Status.ALT_MAYBE;\n");
            }
            source.append("default:\n");
            source.append("break;\n");
            source.append("}\n");
            // closing statement blocks
            for (int j = 0; j < blockCount.get(); j++) {
                source.append("}\n");
            }
        }
    }
    if (!hasElse) {
        source.append("return returnValue;\n");
    }
}