ParserException.java revision 953:221a84ef44c0 
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25
26package jdk.nashorn.internal.runtime;
27
28import jdk.nashorn.api.scripting.NashornException;
29import jdk.nashorn.internal.objects.Global;
30import jdk.nashorn.internal.parser.Token;
31
32/**
33 * ECMAScript parser exceptions.
34 */
35@SuppressWarnings("serial")
36public final class ParserException extends NashornException {
37    // Source from which this ParserException originated
38    private final Source source;
39    // token responsible for this exception
40    private final long token;
41    // if this is traslated as ECMA error, which type should be used?
42    private final JSErrorType errorType;
43
44    /**
45     * Constructor
46     *
47     * @param msg exception message for this parser error.
48     */
49    public ParserException(final String msg) {
50        this(JSErrorType.SYNTAX_ERROR, msg, null, -1, -1, -1);
51    }
52
53    /**
54     * Constructor
55     *
56     * @param errorType error type
57     * @param msg       exception message
58     * @param source    source from which this exception originates
59     * @param line      line number of exception
60     * @param column    column number of exception
61     * @param token     token from which this exception originates
62     *
63     */
64    public ParserException(final JSErrorType errorType, final String msg, final Source source, final int line, final int column, final long token) {
65        super(msg, source != null ? source.getName() : null, line, column);
66        this.source = source;
67        this.token = token;
68        this.errorType = errorType;
69    }
70
71    /**
72     * Get the {@code Source} of this {@code ParserException}
73     * @return source
74     */
75    public Source getSource() {
76        return source;
77    }
78
79    /**
80     * Get the token responsible for this {@code ParserException}
81     * @return token
82     */
83    public long getToken() {
84        return token;
85    }
86
87    /**
88     * Get token position within source where the error originated.
89     * @return token position if available, else -1
90     */
91    public int getPosition() {
92        return Token.descPosition(token);
93    }
94
95    /**
96     * Get the {@code JSErrorType} of this {@code ParserException}
97     * @return error type
98     */
99    public JSErrorType getErrorType() {
100        return errorType;
101    }
102
103    /**
104     * Throw this {@code ParserException} as one of the 7 native JavaScript errors
105     */
106    public void throwAsEcmaException() {
107        throw ECMAErrors.asEcmaException(this);
108    }
109
110    /**
111     * Throw this {@code ParserException} as one of the 7 native JavaScript errors
112     * @param global global scope object
113     */
114    public void throwAsEcmaException(final Global global) {
115        throw ECMAErrors.asEcmaException(global, this);
116    }
117}
118
119