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/*
* Diff Match and Patch
* Copyright 2018 The diff-match-patch Authors.
* https://github.com/google/diff-match-patch
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
part of DiffMatchPatch;
/**
* Class representing one diff operation.
*/
class Diff {
/**
* One of: Operation.insert, Operation.delete or Operation.equal.
*/
Operation operation;
/**
* The text associated with this diff operation.
*/
String text;
/**
* Constructor. Initializes the diff with the provided values.
* [operation] is one of Operation.insert, Operation.delete or Operation.equal.
* [text] is the text being applied.
*/
Diff(this.operation, this.text);
/**
* Display a human-readable version of this Diff.
* Returns a text version.
*/
String toString() {
String prettyText = this.text.replaceAll('\n', '\u00b6');
return 'Diff(${this.operation},"$prettyText")';
}
/**
* Is this Diff equivalent to another Diff?
* [other] is another Diff to compare against.
* Returns true or false.
*/
@override
bool operator ==(Object other) =>
identical(this, other) ||
other is Diff &&
runtimeType == other.runtimeType &&
operation == other.operation &&
text == other.text;
/**
* Generate a uniquely identifiable hashcode for this Diff.
* Returns numeric hashcode.
*/
@override
int get hashCode =>
operation.hashCode ^ text.hashCode;
}
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