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

Example 1 with ParameterisedSubReference

use of org.eclipse.titan.designer.AST.ParameterisedSubReference 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 2 with ParameterisedSubReference

use of org.eclipse.titan.designer.AST.ParameterisedSubReference 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");
    }
}

Example 3 with ParameterisedSubReference

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

the class Referenced_Template method reArrangeInitCode.

@Override
public /**
 * {@inheritDoc}
 */
void reArrangeInitCode(final JavaGenData aData, final StringBuilder source, final Module usageModule) {
    final ISubReference tempSubreference = reference.getSubreferences().get(0);
    if (tempSubreference instanceof ParameterisedSubReference) {
        // generate code for the templates that are used in the actual parameter
        // list of the reference
        final ActualParameterList actualParameterList = ((ParameterisedSubReference) tempSubreference).getActualParameters();
        if (actualParameterList != null) {
            actualParameterList.reArrangeInitCode(aData, source, usageModule);
        }
    }
    final Assignment assignment = reference.getRefdAssignment(CompilationTimeStamp.getBaseTimestamp(), false);
    if (assignment.getAssignmentType() != Assignment_type.A_TEMPLATE) {
        return;
    }
    ITTCN3Template template = ((Def_Template) assignment).getTemplate(CompilationTimeStamp.getBaseTimestamp());
    final FormalParameterList formalParameterList = ((Def_Template) assignment).getFormalParameterList();
    if (formalParameterList != null) {
        // the reference points to a parameterized template
        // we must perform the rearrangement for all non-parameterized templates
        // that are referred by the parameterized template regardless of the
        // sub-references of reference
        template.reArrangeInitCode(aData, source, usageModule);
        // be generated when the template's definition is reached)
        if (assignment.getMyScope().getModuleScope() == usageModule) {
            formalParameterList.generateCodeDefaultValues(aData, source);
        }
    } else {
        // the reference points to a non-parameterized template
        final List<ISubReference> subReferences = reference.getSubreferences();
        if (subReferences != null && subReferences.size() > 1) {
            // and perform the rearrangement for the referred field only
            for (int i = 1; i < subReferences.size(); i++) {
                final ISubReference subReference = subReferences.get(i);
                if (subReference instanceof FieldSubReference) {
                    // stop if the body does not have fields
                    if (template.getTemplatetype() != Template_type.NAMED_TEMPLATE_LIST) {
                        break;
                    }
                    // the field reference can be followed
                    final Identifier fieldId = ((FieldSubReference) subReference).getId();
                    template = ((Named_Template_List) template).getNamedTemplate(fieldId).getTemplate();
                } else {
                    // stop if the body is not a list
                    if (template.getTemplatetype() != Template_type.TEMPLATE_LIST) {
                        break;
                    }
                    IValue arrayIndex = ((ArraySubReference) subReference).getValue();
                    final IReferenceChain referenceChain = ReferenceChain.getInstance(IReferenceChain.CIRCULARREFERENCE, true);
                    arrayIndex = arrayIndex.getValueRefdLast(CompilationTimeStamp.getBaseTimestamp(), referenceChain);
                    referenceChain.release();
                    if (arrayIndex.getValuetype() != Value_type.INTEGER_VALUE) {
                        break;
                    }
                    // the index is available at compilation time
                    long index = ((Integer_Value) arrayIndex).getValue();
                    // index transformation in case of arrays
                    if (template.getMyGovernor().getTypetype() == Type_type.TYPE_ARRAY) {
                        index = index - ((Array_Type) template.getMyGovernor()).getDimension().getOffset();
                    }
                    template = ((Template_List) template).getTemplateByIndex((int) index);
                }
            }
        }
        // we should initialize its entire body
        if (assignment.getMyScope().getModuleScope() == usageModule) {
            template.generateCodeInit(aData, source, template.get_lhs_name());
        }
    }
    if (lengthRestriction != null) {
        lengthRestriction.reArrangeInitCode(aData, source, usageModule);
    }
}

Example 4 with ParameterisedSubReference

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

the class TemplateInstance method reArrangeInitCode.

/**
 * Walks through the templateinstance recursively and appends the java
 * initialization sequence of all (directly or indirectly) referenced
 * non-parameterized templates and the default values of all
 * parameterized templates to source and returns the resulting string.
 * Only objects belonging to module usageModule are initialized.
 *
 * @param aData the structure to put imports into and get temporal variable names from.
 * @param source the source for code generated
 * @param usageModule the module where the template is to be used.
 */
public void reArrangeInitCode(final JavaGenData aData, final StringBuilder source, final Module usageModule) {
    if (derivedReference != null) {
        final List<ISubReference> subreferences = derivedReference.getSubreferences();
        if (subreferences != null && !subreferences.isEmpty() && subreferences.get(0) instanceof ParameterisedSubReference) {
            final ParameterisedSubReference subreference = (ParameterisedSubReference) subreferences.get(0);
            final ActualParameterList actualParameterList = subreference.getActualParameters();
            if (actualParameterList != null) {
                actualParameterList.reArrangeInitCode(aData, source, usageModule);
            }
        }
        final Assignment assignment = derivedReference.getRefdAssignment(CompilationTimeStamp.getBaseTimestamp(), false);
        if (assignment == null) {
            return;
        }
        if (assignment.getAssignmentType() == Assignment_type.A_TEMPLATE) {
            final ITTCN3Template template = ((Def_Template) assignment).getTemplate(CompilationTimeStamp.getBaseTimestamp());
            final FormalParameterList formalParameterList = ((Def_Template) assignment).getFormalParameterList();
            if (formalParameterList != null) {
                // the referred template is parameterized
                // the embedded referenced templates shall be visited
                template.reArrangeInitCode(aData, source, usageModule);
            // FIXME implement
            } else {
                // its entire body has to be initialized now
                if (assignment.getMyScope().getModuleScope() == usageModule) {
                    template.generateCodeInit(aData, source, template.get_lhs_name());
                }
            }
        }
    }
    if (templateBody != null) {
        templateBody.reArrangeInitCode(aData, source, usageModule);
    }
}

Example 5 with ParameterisedSubReference

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

the class All_From_Template method checkThisTemplateParameterizedReference.

private boolean checkThisTemplateParameterizedReference(final Reference reference, final Assignment lhs) {
    final List<ISubReference> subreferences = reference.getSubreferences();
    if (subreferences.isEmpty() || !(subreferences.get(0) instanceof ParameterisedSubReference)) {
        return false;
    }
    final ParameterisedSubReference subReference = (ParameterisedSubReference) subreferences.get(0);
    final ActualParameterList actualParameterList = subReference.getActualParameters();
    if (actualParameterList == null) {
        return false;
    }
    final int nofParameters = actualParameterList.getNofParameters();
    for (int i = 0; i < nofParameters; i++) {
        Reference parameterReference = null;
        final ActualParameter actualParameter = actualParameterList.getParameter(i);
        if (actualParameter instanceof Template_ActualParameter) {
            TemplateInstance templateInstance = ((Template_ActualParameter) actualParameter).getTemplateInstance();
            ITTCN3Template template = templateInstance.getTemplateBody();
            template = template.setLoweridToReference(CompilationTimeStamp.getBaseTimestamp());
            if (template.getTemplatetype() == Template_type.TEMPLATE_REFD) {
                parameterReference = ((Referenced_Template) template).getReference();
            }
        } else if (actualParameter instanceof Referenced_ActualParameter) {
            parameterReference = ((Referenced_ActualParameter) actualParameter).getReference();
        }
        if (parameterReference != null) {
            final Assignment assignment = parameterReference.getRefdAssignment(CompilationTimeStamp.getBaseTimestamp(), false);
            if (assignment == lhs) {
                return true;
            }
            // check their parameters as well
            switch(assignment.getAssignmentType()) {
                case A_TEMPLATE:
                case A_FUNCTION_RVAL:
                case A_FUNCTION_RTEMP:
                case A_EXT_FUNCTION_RVAL:
                case A_EXT_FUNCTION_RTEMP:
                    if (checkThisTemplateParameterizedReference(parameterReference, lhs)) {
                        return true;
                    }
                    break;
                default:
                    break;
            }
        }
    }
    return false;
}