You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.4 KiB
45 lines
1.4 KiB
4 years ago
|
'use strict';
|
||
|
|
|
||
|
|
module.exports = function normalizeRefPath(refPath, doc, populatedPath) {
|
||
|
|
if (refPath == null) {
|
||
|
|
return refPath;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof refPath === 'function') {
|
||
|
|
refPath = refPath.call(doc, doc, populatedPath);
|
||
|
|
}
|
||
|
|
|
||
|
|
// If populated path has numerics, the end `refPath` should too. For example,
|
||
|
|
// if populating `a.0.b` instead of `a.b` and `b` has `refPath = a.c`, we
|
||
|
|
// should return `a.0.c` for the refPath.
|
||
|
|
const hasNumericProp = /(\.\d+$|\.\d+\.)/g;
|
||
|
|
|
||
|
|
if (hasNumericProp.test(populatedPath)) {
|
||
|
|
const chunks = populatedPath.split(hasNumericProp);
|
||
|
|
|
||
|
|
if (chunks[chunks.length - 1] === '') {
|
||
|
|
throw new Error('Can\'t populate individual element in an array');
|
||
|
|
}
|
||
|
|
|
||
|
|
let _refPath = '';
|
||
|
|
let _remaining = refPath;
|
||
|
|
// 2nd, 4th, etc. will be numeric props. For example: `[ 'a', '.0.', 'b' ]`
|
||
|
|
for (let i = 0; i < chunks.length; i += 2) {
|
||
|
|
const chunk = chunks[i];
|
||
|
|
if (_remaining.startsWith(chunk + '.')) {
|
||
|
|
_refPath += _remaining.substr(0, chunk.length) + chunks[i + 1];
|
||
|
|
_remaining = _remaining.substr(chunk.length + 1);
|
||
|
|
} else if (i === chunks.length - 1) {
|
||
|
|
_refPath += _remaining;
|
||
|
|
_remaining = '';
|
||
|
|
break;
|
||
|
|
} else {
|
||
|
|
throw new Error('Could not normalize ref path, chunk ' + chunk + ' not in populated path');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return _refPath;
|
||
|
|
}
|
||
|
|
|
||
|
|
return refPath;
|
||
|
|
};
|