mirror of
https://github.com/overleaf/overleaf.git
synced 2024-11-21 20:47:08 -05:00
41 lines
743 B
JavaScript
41 lines
743 B
JavaScript
|
// @ts-check
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {import('./types').CommentOp} CommentOp
|
||
|
|
* @typedef {import('./types').DeleteOp} DeleteOp
|
||
|
|
* @typedef {import('./types').InsertOp} InsertOp
|
||
|
|
* @typedef {import('./types').Op} Op
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns true if the op is an insert
|
||
|
|
*
|
||
|
|
* @param {Op} op
|
||
|
|
* @returns {op is InsertOp}
|
||
|
|
*/
|
||
|
|
function isInsert(op) {
|
||
|
|
return 'i' in op && op.i != null
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns true if the op is an insert
|
||
|
|
*
|
||
|
|
* @param {Op} op
|
||
|
|
* @returns {op is DeleteOp}
|
||
|
|
*/
|
||
|
|
function isDelete(op) {
|
||
|
|
return 'd' in op && op.d != null
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns true if the op is a comment
|
||
|
|
*
|
||
|
|
* @param {Op} op
|
||
|
|
* @returns {op is CommentOp}
|
||
|
|
*/
|
||
|
|
function isComment(op) {
|
||
|
|
return 'c' in op && op.c != null
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = { isInsert, isDelete, isComment }
|