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18 lines
435 B
18 lines
435 B
'use strict';
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/*!
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* ignore
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*/
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module.exports = function isDefiningProjection(val) {
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if (val == null) {
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// `undefined` or `null` become exclusive projections
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return true;
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}
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if (typeof val === 'object') {
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// Only cases where a value does **not** define whether the whole projection
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// is inclusive or exclusive are `$meta` and `$slice`.
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return !('$meta' in val) && !('$slice' in val);
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}
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return true;
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};
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