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// 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);
}
}
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