commons-bcel-master/src/examples/Mini/MiniParser.java
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
/* Generated By:JJTree&JavaCC: Do not edit this line. MiniParser.java */
package Mini;

public class MiniParser/* @bgen(jjtree) */ implements MiniParserTreeConstants, MiniParserConstants {/* @bgen(jjtree) */
    private static final class JJCalls {
        int gen;
        Token first;
        int arg;
        JJCalls next;
    }

    protected static JJTMiniParserState jjtree = new JJTMiniParserState();

    private static Token expr_token;
    static private boolean jj_initialized_once = false;

    static public MiniParserTokenManager token_source;

    static ASCII_CharStream jj_input_stream;

    static public Token token, jj_nt;

    static private int jj_ntk;

    static private Token jj_scanpos, jj_lastpos;

    static private int jj_la;

    static public boolean lookingAhead = false;

    // static private boolean jj_semLA;
    static private int jj_gen;

    static final private int[] jj_la1 = new int[17];

    static final private int[] jj_la1_0 = {0x200, 0x0, 0x1800000, 0x1c000000, 0x11c04400, 0x1000, 0x1800000, 0x0, 0x11c04400, 0xe2000000, 0x3f0000, 0x1800000,
        0x1800000, 0x1c000000, 0xe2000000, 0x3f0000, 0x10400000,};

    static final private int[] jj_la1_1 = {0x0, 0x8, 0x130, 0x0, 0x331, 0x0, 0x130, 0x8, 0x331, 0x0, 0x0, 0x331, 0x130, 0x0, 0x0, 0x0, 0x0,};

    static final private JJCalls[] jj_2_rtns = new JJCalls[1];

    static private boolean jj_rescan = false;

    static private int jj_gc = 0;

    static private java.util.Vector<int[]> jj_expentries = new java.util.Vector<>();

    static private int[] jj_expentry;

    static private int jj_kind = -1;

    static private int[] jj_lasttokens = new int[100];

    static private int jj_endpos;

    static public int AddOp() throws ParseException {
        Token t = null;
        switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
        case PLUS:
            t = jj_consume_token(PLUS);
            break;
        case MINUS:
            t = jj_consume_token(MINUS);
            break;
        case OR:
            t = jj_consume_token(OR);
            break;
        default:
            jj_la1[13] = jj_gen;
            jj_consume_token(-1);
            throw new ParseException();
        }
        {
            if (true) {
                return t.kind;
            }
        }
        throw new Error("Missing return statement in function");
    }

    static public int CmpOp() throws ParseException {
        Token t = null;
        switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
        case EQ:
            t = jj_consume_token(EQ);
            break;
        case NEQ:
            t = jj_consume_token(NEQ);
            break;
        case LEQ:
            t = jj_consume_token(LEQ);
            break;
        case GEQ:
            t = jj_consume_token(GEQ);
            break;
        case GT:
            t = jj_consume_token(GT);
            break;
        case LT:
            t = jj_consume_token(LT);
            break;
        default:
            jj_la1[15] = jj_gen;
            jj_consume_token(-1);
            throw new ParseException();
        }
        {
            if (true) {
                return t.kind;
            }
        }
        throw new Error("Missing return statement in function");
    }

    static public void disable_tracing() {
    }

    static public void Element() throws ParseException {
        if (jj_2_1(2)) {
            expr_token = FunAppl();
        } else {
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case FALSE:
            case TRUE:
            case READ:
            case WRITE:
            case IDENT:
                expr_token = Ident();
                break;
            case INTEGER:
                expr_token = Integer();
                break;
            case LPAREN:
                expr_token = jj_consume_token(LPAREN);
                Expr();
                jj_consume_token(RPAREN);
                break;
            default:
                jj_la1[11] = jj_gen;
                jj_consume_token(-1);
                throw new ParseException();
            }
        }
    }

    static public void enable_tracing() {
    }

    static public void Expr() throws ParseException {
        /* @bgen(jjtree) Expr */
        final ASTExpr jjtn000 = new ASTExpr(JJTEXPR);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        int kind = -1;
        int un_op = -1;
        try {
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case 10:
                IfExpr();
                break;
            case 14:
                LetExpr();
                break;
            case FALSE:
            case TRUE:
            case LPAREN:
            case READ:
            case WRITE:
            case IDENT:
            case INTEGER:
                Term();
                switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
                case OR:
                case PLUS:
                case MINUS:
                    kind = AddOp();
                    Expr();
                    jjtn000.setKind(kind);
                    break;
                default:
                    jj_la1[3] = jj_gen;
                }
                break;
            case NOT:
            case MINUS:
                un_op = UnOp();
                jjtn000.setUnOp(un_op);
                Expr();
                break;
            default:
                jj_la1[4] = jj_gen;
                jj_consume_token(-1);
                throw new ParseException();
            }
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
    }

    static public void Factor() throws ParseException {
        /* @bgen(jjtree) Factor */
        final ASTFactor jjtn000 = new ASTFactor(JJTFACTOR);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        int kind = -1;
        try {
            Element();
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case GT:
            case LT:
            case GEQ:
            case LEQ:
            case EQ:
            case NEQ:
                kind = CmpOp();
                jjtn000.setKind(kind);
                Factor();
                break;
            default:
                jj_la1[10] = jj_gen;
            }
            jjtree.closeNodeScope(jjtn000, true);
            jjtc000 = false;
            jjtreeCloseNodeScope(jjtn000);
            jjtn000.setPosition(expr_token.beginLine, expr_token.beginColumn);
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
    }

    static public Token FunAppl() throws ParseException {
        /* @bgen(jjtree) FunAppl */
        final ASTFunAppl jjtn000 = new ASTFunAppl(JJTFUNAPPL);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        Token t = null;
        try {
            t = Ident();
            jjtn000.setPosition(t.beginLine, t.beginColumn);
            jj_consume_token(LPAREN);
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case 10:
            case 14:
            case NOT:
            case FALSE:
            case TRUE:
            case MINUS:
            case LPAREN:
            case READ:
            case WRITE:
            case IDENT:
            case INTEGER:
                Expr();
                label_4: while (true) {
                    switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
                    case COMMA:
                        break;
                    default:
                        jj_la1[7] = jj_gen;
                        break label_4;
                    }
                    jj_consume_token(COMMA);
                    Expr();
                }
                break;
            default:
                jj_la1[8] = jj_gen;
            }
            jj_consume_token(RPAREN);
            jjtree.closeNodeScope(jjtn000, true);
            jjtc000 = false;
            jjtreeCloseNodeScope(jjtn000);
            {
                if (true) {
                    return t;
                }
            }
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
        throw new Error("Missing return statement in function");
    }

    /*
     * "FUN" Ident() "(" NameList() ")" = Expr()
     */
    static public void FunDecl() throws ParseException {
        /* @bgen(jjtree) FunDecl */
        final ASTFunDecl jjtn000 = new ASTFunDecl(JJTFUNDECL);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        Token t;
        try {
            t = jj_consume_token(9);
            jjtn000.setPosition(t.beginLine, t.beginColumn);
            Ident();
            jj_consume_token(LPAREN);
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case FALSE:
            case TRUE:
            case READ:
            case WRITE:
            case IDENT:
                Ident();
                label_2: while (true) {
                    switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
                    case COMMA:
                        break;
                    default:
                        jj_la1[1] = jj_gen;
                        break label_2;
                    }
                    jj_consume_token(COMMA);
                    Ident();
                }
                break;
            default:
                jj_la1[2] = jj_gen;
            }
            jj_consume_token(RPAREN);
            jj_consume_token(ASSIGN);
            Expr();
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
    }

    static public ParseException generateParseException() {
        jj_expentries.removeAllElements();
        final boolean[] la1tokens = new boolean[43];
        for (int i = 0; i < 43; i++) {
            la1tokens[i] = false;
        }
        if (jj_kind >= 0) {
            la1tokens[jj_kind] = true;
            jj_kind = -1;
        }
        for (int i = 0; i < 17; i++) {
            if (jj_la1[i] == jj_gen) {
                for (int j = 0; j < 32; j++) {
                    if ((jj_la1_0[i] & 1 << j) != 0) {
                        la1tokens[j] = true;
                    }
                    if ((jj_la1_1[i] & 1 << j) != 0) {
                        la1tokens[32 + j] = true;
                    }
                }
            }
        }
        for (int i = 0; i < 43; i++) {
            if (la1tokens[i]) {
                jj_expentry = new int[1];
                jj_expentry[0] = i;
                jj_expentries.addElement(jj_expentry);
            }
        }
        jj_endpos = 0;
        jj_rescan_token();
        jj_add_error_token(0, 0);
        final int[][] exptokseq = new int[jj_expentries.size()][];
        for (int i = 0; i < jj_expentries.size(); i++) {
            exptokseq[i] = jj_expentries.elementAt(i);
        }
        return new ParseException(token, exptokseq, tokenImage);
    }

    static public Token getNextToken() {
        if (token.next != null) {
            token = token.next;
        } else {
            token = token.next = MiniParserTokenManager.getNextToken();
        }
        jj_ntk = -1;
        jj_gen++;
        return token;
    }

    static public Token getToken(final int index) {
        Token t = lookingAhead ? jj_scanpos : token;
        for (int i = 0; i < index; i++) {
            if (t.next != null) {
                t = t.next;
            } else {
                t = t.next = MiniParserTokenManager.getNextToken();
            }
        }
        return t;
    }

    static public Token Ident() throws ParseException {
        /* @bgen(jjtree) Ident */
        final ASTIdent jjtn000 = new ASTIdent(JJTIDENT);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        Token t;
        try {
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case TRUE:
                t = jj_consume_token(TRUE);
                break;
            case FALSE:
                t = jj_consume_token(FALSE);
                break;
            case READ:
                t = jj_consume_token(READ);
                break;
            case WRITE:
                t = jj_consume_token(WRITE);
                break;
            case IDENT:
                t = jj_consume_token(IDENT);
                break;
            default:
                jj_la1[12] = jj_gen;
                jj_consume_token(-1);
                throw new ParseException();
            }
            jjtree.closeNodeScope(jjtn000, true);
            jjtc000 = false;
            jjtreeCloseNodeScope(jjtn000);
            jjtn000.setName(t.image);
            jjtn000.setPosition(t.beginLine, t.beginColumn);
            {
                if (true) {
                    return t;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
        throw new Error("Missing return statement in function");
    }

    /*
     * The disambiguating algorithm of JavaCC automatically binds dangling else's to the innermost if statement. The
     * LOOKAHEAD specification is to tell JavaCC that we know what we are doing.
     */
    static public void IfExpr() throws ParseException {
        /* @bgen(jjtree) IfExpr */
        final ASTIfExpr jjtn000 = new ASTIfExpr(JJTIFEXPR);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        Token t = null;
        try {
            t = jj_consume_token(10);
            jjtn000.setPosition(t.beginLine, t.beginColumn);
            Expr();
            jj_consume_token(11);
            Expr();
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case 12:
                jj_consume_token(12);
                Expr();
                break;
            default:
                jj_la1[5] = jj_gen;
            }
            jj_consume_token(13);
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
    }

    static public Token Integer() throws ParseException {
        /* @bgen(jjtree) Integer */
        final ASTInteger jjtn000 = new ASTInteger(JJTINTEGER);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        Token t;
        try {
            t = jj_consume_token(INTEGER);
            jjtree.closeNodeScope(jjtn000, true);
            jjtc000 = false;
            jjtreeCloseNodeScope(jjtn000);
            jjtn000.setValue(Integer.parseInt(t.image));
            jjtn000.setPosition(t.beginLine, t.beginColumn);
            {
                if (true) {
                    return t;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
        throw new Error("Missing return statement in function");
    }

    static private boolean jj_2_1(final int xla) {
        jj_la = xla;
        jj_lastpos = jj_scanpos = token;
        final boolean retval = !jj_3_1();
        jj_save(0, xla);
        return retval;
    }

    static private boolean jj_3_1() {
        if (jj_3R_5()) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private boolean jj_3R_10() {
        if (jj_scan_token(WRITE)) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private boolean jj_3R_11() {
        if (jj_scan_token(IDENT)) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private boolean jj_3R_5() {
        if (jj_3R_6()) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
            return false;
        }
        if (jj_scan_token(LPAREN)) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private boolean jj_3R_6() {
        Token xsp;
        xsp = jj_scanpos;
        if (jj_3R_7()) {
            jj_scanpos = xsp;
            if (jj_3R_8()) {
                jj_scanpos = xsp;
                if (jj_3R_9()) {
                    jj_scanpos = xsp;
                    if (jj_3R_10()) {
                        jj_scanpos = xsp;
                        if (jj_3R_11()) {
                            return true;
                        }
                        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
                        }
                    } else if (jj_la == 0 && jj_scanpos == jj_lastpos) {
                    }
                } else if (jj_la == 0 && jj_scanpos == jj_lastpos) {
                }
            } else if (jj_la == 0 && jj_scanpos == jj_lastpos) {
            }
        } else if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private boolean jj_3R_7() {
        if (jj_scan_token(TRUE)) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private boolean jj_3R_8() {
        if (jj_scan_token(FALSE)) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private boolean jj_3R_9() {
        if (jj_scan_token(READ)) {
            return true;
        }
        if (jj_la == 0 && jj_scanpos == jj_lastpos) {
        }
        return false;
    }

    static private void jj_add_error_token(final int kind, final int pos) {
        if (pos >= 100) {
            return;
        }
        if (pos == jj_endpos + 1) {
            jj_lasttokens[jj_endpos++] = kind;
        } else if (jj_endpos != 0) {
            jj_expentry = new int[jj_endpos];
            for (int i = 0; i < jj_endpos; i++) {
                jj_expentry[i] = jj_lasttokens[i];
            }
            boolean exists = false;
            for (final int[] j : jj_expentries) {
                final int[] oldentry = j;
                if (oldentry.length == jj_expentry.length) {
                    exists = true;
                    for (int i = 0; i < jj_expentry.length; i++) {
                        if (oldentry[i] != jj_expentry[i]) {
                            exists = false;
                            break;
                        }
                    }
                    if (exists) {
                        break;
                    }
                }
            }
            if (!exists) {
                jj_expentries.addElement(jj_expentry);
            }
            if (pos != 0) {
                jj_lasttokens[(jj_endpos = pos) - 1] = kind;
            }
        }
    }

    static private Token jj_consume_token(final int kind) throws ParseException {
        Token oldToken;
        if ((oldToken = token).next != null) {
            token = token.next;
        } else {
            token = token.next = MiniParserTokenManager.getNextToken();
        }
        jj_ntk = -1;
        if (token.kind == kind) {
            jj_gen++;
            if (++jj_gc > 100) {
                jj_gc = 0;
                for (final JJCalls jj_2_rtn : jj_2_rtns) {
                    JJCalls c = jj_2_rtn;
                    while (c != null) {
                        if (c.gen < jj_gen) {
                            c.first = null;
                        }
                        c = c.next;
                    }
                }
            }
            return token;
        }
        token = oldToken;
        jj_kind = kind;
        throw generateParseException();
    }

    static private int jj_ntk() {
        if ((jj_nt = token.next) == null) {
            return jj_ntk = (token.next = MiniParserTokenManager.getNextToken()).kind;
        }
        return jj_ntk = jj_nt.kind;
    }

    static private void jj_rescan_token() {
        jj_rescan = true;
        for (int i = 0; i < 1; i++) {
            JJCalls p = jj_2_rtns[i];
            do {
                if (p.gen > jj_gen) {
                    jj_la = p.arg;
                    jj_lastpos = jj_scanpos = p.first;
                    switch (i) {
                    case 0:
                        jj_3_1();
                        break;
                    }
                }
                p = p.next;
            } while (p != null);
        }
        jj_rescan = false;
    }

    static private void jj_save(final int index, final int xla) {
        JJCalls p = jj_2_rtns[index];
        while (p.gen > jj_gen) {
            if (p.next == null) {
                p = p.next = new JJCalls();
                break;
            }
            p = p.next;
        }
        p.gen = jj_gen + xla - jj_la;
        p.first = token;
        p.arg = xla;
    }

    static private boolean jj_scan_token(final int kind) {
        if (jj_scanpos == jj_lastpos) {
            jj_la--;
            if (jj_scanpos.next == null) {
                jj_lastpos = jj_scanpos = jj_scanpos.next = MiniParserTokenManager.getNextToken();
            } else {
                jj_lastpos = jj_scanpos = jj_scanpos.next;
            }
        } else {
            jj_scanpos = jj_scanpos.next;
        }
        if (jj_rescan) {
            int i = 0;
            Token tok = token;
            while (tok != null && tok != jj_scanpos) {
                i++;
                tok = tok.next;
            }
            if (tok != null) {
                jj_add_error_token(kind, i);
            }
        }
        return jj_scanpos.kind != kind;
    }

    final static void jjtreeCloseNodeScope(final Node n) {
        ((SimpleNode) n).closeNode();
    }

    final static void jjtreeOpenNodeScope(final Node n) {
    }

    static public void LetExpr() throws ParseException {
        /* @bgen(jjtree) LetExpr */
        final ASTLetExpr jjtn000 = new ASTLetExpr(JJTLETEXPR);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        Token t = null;
        try {
            t = jj_consume_token(14);
            jjtn000.setPosition(t.beginLine, t.beginColumn);
            label_3: while (true) {
                Ident();
                jj_consume_token(ASSIGN);
                Expr();
                switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
                case FALSE:
                case TRUE:
                case READ:
                case WRITE:
                case IDENT:
                    break;
                default:
                    jj_la1[6] = jj_gen;
                    break label_3;
                }
            }
            jj_consume_token(15);
            Expr();
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
    }

    static public int MultOp() throws ParseException {
        Token t = null;
        switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
        case MULT:
            t = jj_consume_token(MULT);
            break;
        case DIV:
            t = jj_consume_token(DIV);
            break;
        case MOD:
            t = jj_consume_token(MOD);
            break;
        case AND:
            t = jj_consume_token(AND);
            break;
        default:
            jj_la1[14] = jj_gen;
            jj_consume_token(-1);
            throw new ParseException();
        }
        {
            if (true) {
                return t.kind;
            }
        }
        throw new Error("Missing return statement in function");
    }

    /*
     * A program consists of a number of function declarations with a distinguished function 'main' that starts the program.
     */
    static public void Program() throws ParseException {
        /* @bgen(jjtree) Program */
        final ASTProgram jjtn000 = new ASTProgram(JJTPROGRAM);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        try {
            label_1: while (true) {
                switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
                case 9:
                    break;
                default:
                    jj_la1[0] = jj_gen;
                    break label_1;
                }
                FunDecl();
            }
            jj_consume_token(0);
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
    }

    static public void ReInit(final java.io.InputStream stream) {
        ASCII_CharStream.ReInit(stream, 1, 1);
        MiniParserTokenManager.ReInit(jj_input_stream);
        token = new Token();
        jj_ntk = -1;
        jjtree.reset();
        jj_gen = 0;
        for (int i = 0; i < 17; i++) {
            jj_la1[i] = -1;
        }
        for (int i = 0; i < jj_2_rtns.length; i++) {
            jj_2_rtns[i] = new JJCalls();
        }
    }

    static public void ReInit(final java.io.Reader stream) {
        ASCII_CharStream.ReInit(stream, 1, 1);
        MiniParserTokenManager.ReInit(jj_input_stream);
        token = new Token();
        jj_ntk = -1;
        jjtree.reset();
        jj_gen = 0;
        for (int i = 0; i < 17; i++) {
            jj_la1[i] = -1;
        }
        for (int i = 0; i < jj_2_rtns.length; i++) {
            jj_2_rtns[i] = new JJCalls();
        }
    }

    static public void Term() throws ParseException {
        /* @bgen(jjtree) Term */
        final ASTTerm jjtn000 = new ASTTerm(JJTTERM);
        boolean jjtc000 = true;
        jjtree.openNodeScope(jjtn000);
        jjtreeOpenNodeScope(jjtn000);
        int kind = -1;
        try {
            Factor();
            switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
            case AND:
            case MULT:
            case MOD:
            case DIV:
                kind = MultOp();
                jjtn000.setKind(kind);
                Term();
                break;
            default:
                jj_la1[9] = jj_gen;
            }
            jjtree.closeNodeScope(jjtn000, true);
            jjtc000 = false;
            jjtreeCloseNodeScope(jjtn000);
            jjtn000.setPosition(expr_token.beginLine, expr_token.beginColumn);
        } catch (final Throwable jjte000) {
            if (jjtc000) {
                jjtree.clearNodeScope(jjtn000);
                jjtc000 = false;
            } else {
                jjtree.popNode();
            }
            if (jjte000 instanceof ParseException) {
                {
                    if (true) {
                        throw (ParseException) jjte000;
                    }
                }
            }
            if (jjte000 instanceof RuntimeException) {
                {
                    if (true) {
                        throw (RuntimeException) jjte000;
                    }
                }
            }
            {
                if (true) {
                    throw (Error) jjte000;
                }
            }
        } finally {
            if (jjtc000) {
                jjtree.closeNodeScope(jjtn000, true);
                jjtreeCloseNodeScope(jjtn000);
            }
        }
    }

    static final public int UnOp() throws ParseException {
        Token t = null;
        switch (jj_ntk == -1 ? jj_ntk() : jj_ntk) {
        case MINUS:
            t = jj_consume_token(MINUS);
            break;
        case NOT:
            t = jj_consume_token(NOT);
            break;
        default:
            jj_la1[16] = jj_gen;
            jj_consume_token(-1);
            throw new ParseException();
        }
        {
            if (true) {
                return t.kind;
            }
        }
        throw new Error("Missing return statement in function");
    }

    public MiniParser(final java.io.InputStream stream) {
        if (jj_initialized_once) {
            System.out.println("ERROR: Second call to constructor of static parser.  You must");
            System.out.println("       either use ReInit() or set the JavaCC option STATIC to false");
            System.out.println("       during parser generation.");
            throw new Error();
        }
        jj_initialized_once = true;
        jj_input_stream = new ASCII_CharStream(stream, 1, 1);
        token_source = new MiniParserTokenManager(jj_input_stream);
        token = new Token();
        jj_ntk = -1;
        jj_gen = 0;
        for (int i = 0; i < 17; i++) {
            jj_la1[i] = -1;
        }
        for (int i = 0; i < jj_2_rtns.length; i++) {
            jj_2_rtns[i] = new JJCalls();
        }
    }

    public MiniParser(final java.io.Reader stream) {
        if (jj_initialized_once) {
            System.out.println("ERROR: Second call to constructor of static parser.  You must");
            System.out.println("       either use ReInit() or set the JavaCC option STATIC to false");
            System.out.println("       during parser generation.");
            throw new Error();
        }
        jj_initialized_once = true;
        jj_input_stream = new ASCII_CharStream(stream, 1, 1);
        token_source = new MiniParserTokenManager(jj_input_stream);
        token = new Token();
        jj_ntk = -1;
        jj_gen = 0;
        for (int i = 0; i < 17; i++) {
            jj_la1[i] = -1;
        }
        for (int i = 0; i < jj_2_rtns.length; i++) {
            jj_2_rtns[i] = new JJCalls();
        }
    }

    public MiniParser(final MiniParserTokenManager tm) {
        if (jj_initialized_once) {
            System.out.println("ERROR: Second call to constructor of static parser.  You must");
            System.out.println("       either use ReInit() or set the JavaCC option STATIC to false");
            System.out.println("       during parser generation.");
            throw new Error();
        }
        jj_initialized_once = true;
        token_source = tm;
        token = new Token();
        jj_ntk = -1;
        jj_gen = 0;
        for (int i = 0; i < 17; i++) {
            jj_la1[i] = -1;
        }
        for (int i = 0; i < jj_2_rtns.length; i++) {
            jj_2_rtns[i] = new JJCalls();
        }
    }

    public void ReInit(final MiniParserTokenManager tm) {
        token_source = tm;
        token = new Token();
        jj_ntk = -1;
        jjtree.reset();
        jj_gen = 0;
        for (int i = 0; i < 17; i++) {
            jj_la1[i] = -1;
        }
        for (int i = 0; i < jj_2_rtns.length; i++) {
            jj_2_rtns[i] = new JJCalls();
        }
    }

}
