Package org.jruby.lexer.yacc

Examples of org.jruby.lexer.yacc.SyntaxException

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    public Node new_yield(ISourcePosition position, Node node) {
        boolean state = true;
       
        if (node != null) {
            if (node instanceof BlockPassNode) {
                throw new SyntaxException(PID.BLOCK_ARG_UNEXPECTED, node.getPosition(),
                        lexer.getCurrentLine(), "Block argument should not be given.");
            }

            if (node instanceof ArrayNode && configuration.getVersion() == CompatVersion.RUBY1_8 &&
                    ((ArrayNode)node).size() == 1) {
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    public BlockArgNode newBlockArg(ISourcePosition position, Token nameToken) {
        String identifier = (String) nameToken.getValue();

        if (getCurrentScope().getLocalScope().isDefined(identifier) >= 0) {
            throw new SyntaxException(PID.BAD_IDENTIFIER, position, lexer.getCurrentLine(),
                    "duplicate block argument name");
        }

        return new BlockArgNode(position, getCurrentScope().getLocalScope().addVariable(identifier), identifier);
    }
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    /**
     * generate parsing error
     */
    public void yyerror(String message) {
        throw new SyntaxException(PID.GRAMMAR_ERROR, lexer.getPosition(), lexer.getCurrentLine(), message);
    }
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     * @param message text to be displayed.
     * @param expected list of acceptable tokens, if available.
     */
    public void yyerror(String message, String[] expected, String found) {
        String text = message + ", unexpected " + found + "\n";
        throw new SyntaxException(PID.GRAMMAR_ERROR, lexer.getPosition(), lexer.getCurrentLine(), text, found);
    }
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        inSingleton = 0;
        inDefinition = false;
    }
   
    public void allowDubyExtension(ISourcePosition position) {
        throw new SyntaxException(PID.DUBY_EXTENSIONS_OFF, position,
                lexer.getCurrentLine(), "Duby extensions not configured");
    }
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        getterIdentifierError(token.getPosition(), (String) token.getValue());
        return null;
    }
   
    protected void getterIdentifierError(ISourcePosition position, String identifier) {
        throw new SyntaxException(PID.BAD_IDENTIFIER, position, lexer.getCurrentLine(),
                "identifier " + identifier + " is not valid", identifier);
    }
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    public AssignableNode assignable(Token lhs, Node value) {
        checkExpression(value);

        switch (lhs.getType()) {
            case Tokens.kSELF:
                throw new SyntaxException(PID.CANNOT_CHANGE_SELF, lhs.getPosition(),
                        lexer.getCurrentLine(), "Can't change the value of self");
            case Tokens.kNIL:
                throw new SyntaxException(PID.INVALID_ASSIGNMENT, lhs.getPosition(),
                        lexer.getCurrentLine(), "Can't assign to nil", "nil");
            case Tokens.kTRUE:
                throw new SyntaxException(PID.INVALID_ASSIGNMENT, lhs.getPosition(),
                        lexer.getCurrentLine(), "Can't assign to true", "true");
            case Tokens.kFALSE:
                throw new SyntaxException(PID.INVALID_ASSIGNMENT, lhs.getPosition(),
                        lexer.getCurrentLine(), "Can't assign to false", "false");
            case Tokens.k__FILE__:
                throw new SyntaxException(PID.INVALID_ASSIGNMENT, lhs.getPosition(),
                        lexer.getCurrentLine(), "Can't assign to __FILE__", "__FILE__");
            case Tokens.k__LINE__:
                throw new SyntaxException(PID.INVALID_ASSIGNMENT, lhs.getPosition(),
                        lexer.getCurrentLine(), "Can't assign to __LINE__", "__LINE__");
            case Tokens.tIDENTIFIER:
                return currentScope.assign(lhs.getPosition(), (String) lhs.getValue(), makeNullNil(value));
            case Tokens.tCONSTANT:
                if (isInDef() || isInSingle()) {
                    throw new SyntaxException(PID.DYNAMIC_CONSTANT_ASSIGNMENT, lhs.getPosition(),
                            lexer.getCurrentLine(), "dynamic constant assignment");
                }
                return new ConstDeclNode(lhs.getPosition(), (String) lhs.getValue(), null, value);
            case Tokens.tIVAR:
                return new InstAsgnNode(lhs.getPosition(), (String) lhs.getValue(), value);
            case Tokens.tCVAR:
                if (isInDef() || isInSingle()) {
                    return new ClassVarAsgnNode(lhs.getPosition(), (String) lhs.getValue(), value);
                }
                return new ClassVarDeclNode(lhs.getPosition(), (String) lhs.getValue(), value);
            case Tokens.tGVAR:
                return new GlobalAsgnNode(lhs.getPosition(), (String) lhs.getValue(), value);
        }

        throw new SyntaxException(PID.BAD_IDENTIFIER, lhs.getPosition(), lexer.getCurrentLine(),
                "identifier " + (String) lhs.getValue() + " is not valid", lhs.getValue());
    }
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    }

    public void backrefAssignError(Node node) {
        if (node instanceof NthRefNode) {
            String varName = "$" + ((NthRefNode) node).getMatchNumber();
            throw new SyntaxException(PID.INVALID_ASSIGNMENT, node.getPosition(),
                    "Can't set variable " + varName + '.', varName);
        } else if (node instanceof BackRefNode) {
            String varName = "$" + ((BackRefNode) node).getType();
            throw new SyntaxException(PID.INVALID_ASSIGNMENT, node.getPosition(), "Can't set variable " + varName + '.', varName);
        }
    }
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    }
   
    public Node ret_args(Node node, ISourcePosition position) {
        if (node != null) {
            if (node instanceof BlockPassNode) {
                throw new SyntaxException(PID.DYNAMIC_CONSTANT_ASSIGNMENT, position,
                        lexer.getCurrentLine(), "Dynamic constant assignment.");
            } else if (node instanceof ArrayNode && ((ArrayNode)node).size() == 1) {
                node = ((ArrayNode)node).get(0);
            } else if (node instanceof SplatNode) {
                node = newSValueNode(position, node);
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                        "void value expression");
                return false;
            case RETURNNODE: case BREAKNODE: case NEXTNODE: case REDONODE:
            case RETRYNODE:
                if (!conditional) {
                    throw new SyntaxException(PID.VOID_VALUE_EXPRESSION,
                            node.getPosition(), lexer.getCurrentLine(),
                            "void value expression");
                }
                return false;
            case BLOCKNODE:
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Related Classes of org.jruby.lexer.yacc.SyntaxException

  • org.jruby.parser.DefaultRubyParser
  • org.jruby.parser.ParserSupport
  • org.jruby.parser.ParserSupport19
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