| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package com.google.protobuf; |
| |
| import java.util.Arrays; |
| |
| /** |
| * A location in the source code. |
| * |
| * <p>A location is the starting line number and starting column number. |
| */ |
| public final class TextFormatParseLocation { |
| |
| /** |
| * The empty location. |
| */ |
| public static final TextFormatParseLocation EMPTY = new TextFormatParseLocation(-1, -1); |
| |
| /** |
| * Create a location. |
| * |
| * @param line the starting line number |
| * @param column the starting column number |
| * @return a {@code ParseLocation} |
| */ |
| static TextFormatParseLocation create(int line, int column) { |
| if (line == -1 && column == -1) { |
| return EMPTY; |
| } |
| if (line < 0 || column < 0) { |
| throw new IllegalArgumentException( |
| String.format("line and column values must be >= 0: line %d, column: %d", line, column)); |
| } |
| return new TextFormatParseLocation(line, column); |
| } |
| |
| private final int line; |
| private final int column; |
| |
| private TextFormatParseLocation(int line, int column) { |
| this.line = line; |
| this.column = column; |
| } |
| |
| public int getLine() { |
| return line; |
| } |
| |
| public int getColumn() { |
| return column; |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("ParseLocation{line=%d, column=%d}", line, column); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o == this) { |
| return true; |
| } |
| if (!(o instanceof TextFormatParseLocation)) { |
| return false; |
| } |
| TextFormatParseLocation that = (TextFormatParseLocation) o; |
| return (this.line == that.getLine()) |
| && (this.column == that.getColumn()); |
| } |
| |
| @Override |
| public int hashCode() { |
| int[] values = {line, column}; |
| return Arrays.hashCode(values); |
| } |
| } |