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-rw-r--r--java/core/src/main/java/com/google/protobuf/TextFormatParseLocation.java104
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diff --git a/java/core/src/main/java/com/google/protobuf/TextFormatParseLocation.java b/java/core/src/main/java/com/google/protobuf/TextFormatParseLocation.java
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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);
+ }
+}