Examples with CheckException de.be4.classicalb.core.parser.exceptions.CheckException used on opensource projects

Example 76 with CheckException

use of de.be4.classicalb.core.parser.exceptions.CheckException in project probparsers by bendisposto.

the class RulesMachineChecker method checkSucceededRuleErrorTypeOperator.

private void checkSucceededRuleErrorTypeOperator(AOperatorPredicate node, final List<PExpression> arguments) {
    if (arguments.size() != 2) {
        this.errorList.add(new CheckException("The SUCCEEDED_RULE_ERROR_TYPE predicate operator expects exactly two arguments.", node));
        return;
    }
    PExpression pExpression = node.getIdentifiers().get(0);
    if (!(pExpression instanceof AIdentifierExpression)) {
        this.errorList.add(new CheckException("The first argument of SUCCEEDED_RULE_ERROR_TYPE must be an identifier.", node));
        return;
    }
    PExpression secondArg = node.getIdentifiers().get(1);
    if (!(secondArg instanceof AIntegerExpression)) {
        this.errorList.add(new CheckException("The second argument of SUCCEEDED_RULE_ERROR_TYPE must be an integer value.", node));
        return;
    }
    this.referencedRuleOperations.add((AIdentifierExpression) arguments.get(0));
    return;
}

Example 77 with CheckException

use of de.be4.classicalb.core.parser.exceptions.CheckException in project probparsers by bendisposto.

the class RulesMachineChecker method caseASubstitutionDefinitionDefinition.

@Override
public void caseASubstitutionDefinitionDefinition(ASubstitutionDefinitionDefinition node) {
    final String name = node.getName().getText();
    this.definitions.add(name);
    if ("GOAL".equals(name)) {
        errorList.add(new CheckException("The GOAL definition must be a predicate.", node));
        return;
    }
    this.identifierScope.createNewScope(new LinkedList<>(node.getParameters()));
    node.getRhs().apply(this);
    this.identifierScope.removeScope();
}

Example 78 with CheckException

use of de.be4.classicalb.core.parser.exceptions.CheckException in project probparsers by bendisposto.

the class RulesMachineChecker method checkGetRuleCounterExamplesOperator.

private void checkGetRuleCounterExamplesOperator(AOperatorExpression node, final LinkedList<PExpression> parameters) {
    // the grammar ensures at least one argument
    if (parameters.size() > 2) {
        this.errorList.add(new CheckException("Invalid number of arguments. Expected one or two arguments.", node));
    }
    PExpression pExpression = node.getIdentifiers().get(0);
    if (!(pExpression instanceof AIdentifierExpression)) {
        this.errorList.add(new CheckException("The first argument of GET_RULE_COUNTEREXAMPLES must be an identifier.", node));
        return;
    }
    this.referencedRuleOperations.add((AIdentifierExpression) pExpression);
    return;
}

Example 79 with CheckException

use of de.be4.classicalb.core.parser.exceptions.CheckException in project probparsers by bendisposto.

the class EventBParser method parse.

/**
 * Parses the input string.
 *
 * @param input
 *            the {@link String} to be parsed
 * @param debugOutput
 *            output debug messages on standard out?
 * @return the root node of the AST
 * @throws BException
 *             The {@link BException} class stores the actual exception as
 *             delegate and forwards all method calls to it. So it is save
 *             for tools to just use this exception if they want to extract
 *             an error message. If the tools needs to extract additional
 *             information, such as a sourcecode position or involved tokens
 *             respectively nodes, it needs to retrieve the delegate
 *             exception. The {@link BException} class offers a
 *             {@link BException#getCause()} method for this, which returns
 *             the delegate exception.
 *             <p>
 *             Internal exceptions:
 *             <ul>
 *             <li>{@link EventBLexerException}: If any error occurs in the
 *             generated or customized lexer a {@link LexerException} is
 *             thrown. Usually the lexer classes just throw a
 *             {@link LexerException}. But this class unfortunately does not
 *             contain any explicit information about the sourcecode
 *             position where the error occured. Using aspect-oriented
 *             programming we intercept the throwing of these exceptions to
 *             replace them by our own exception. In our own exception we
 *             provide the sourcecode position of the last characters that
 *             were read from the input.</li>
 *             <li>{@link EventBParseException}: This exception is thrown in
 *             two situations. On the one hand if the parser throws a
 *             {@link ParserException} we convert it into a
 *             {@link EventBParseException}. On the other hand it can be
 *             thrown if any error is found during the AST transformations
 *             after the parser has finished. We try to provide a token if a
 *             single token is involved in the error. Otherwise a
 *             {@link SourcecodeRange} is provided, which can be used to
 *             retrieve detailed position information from the
 *             {@link SourcePositions} (s. {@link #getSourcePositions()}).
 *             </li>
 *             <li>{@link CheckException}: If any problem occurs while
 *             performing semantic checks, a {@link CheckException} is
 *             thrown. We provide one or more nodes that are involved in the
 *             problem. For example, if we find dublicate machine clauses,
 *             we will list all occurances in the exception.</li>
 *             </ul>
 */
public Start parse(final String input, final boolean debugOutput) throws BException {
    final Reader reader = new StringReader(input);
    try {
        /*
			 * Main parser
			 */
        final EventBLexer lexer = new EventBLexer(new PushbackReader(reader, 99));
        lexer.setDebugOutput(debugOutput);
        Parser parser = new Parser(lexer);
        final Start rootNode = parser.parse();
        final List<IToken> tokenList = ((ITokenListContainer) lexer).getTokenList();
        /*
			 * Retrieving sourcecode positions which were found by ParserAspect
			 */
        final Map<PositionedNode, SourcecodeRange> positions = ((IParser) parser).getMapping();
        sourcePositions = new SourcePositions(tokenList, positions);
        parser = null;
        return rootNode;
    } catch (final LexerException e) {
        /*
			 * Actually it's supposed to be a EventBLexerException because the
			 * aspect 'LexerAspect' replaces any LexerException to provide
			 * sourcecode position information in the BLexerException.
			 */
        throw new BException(e);
    } catch (final ParserException e) {
        throw new BException(createEventBParseException(e));
    } catch (final EventBParseException e) {
        throw new BException(e);
    } catch (final IOException e) {
        // shouldn't happen and if, we cannot handle it
        throw new BException(e);
    }
}

Example 80 with CheckException

use of de.be4.classicalb.core.parser.exceptions.CheckException in project probparsers by bendisposto.

the class BParser method applyAstTransformations.

private void applyAstTransformations(final Start rootNode) throws CheckException {
    // default transformations
    OpSubstitutions.transform(rootNode, getDefinitions());
    rootNode.apply(new SyntaxExtensionTranslator());
// more AST transformations?
}