com.google.protobuf.TextFormatParseLocation Maven / Gradle / Ivy
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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//
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// distribution.
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package com.google.protobuf;
import java.util.Arrays;
/**
* A location in the source code.
*
* 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);
}
}