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20 lines
578 B
JavaScript
20 lines
578 B
JavaScript
"use strict";
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const { validateArguments } = require("@validatem/core");
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const required = require("@validatem/required");
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const arrayOf = require("@validatem/array-of");
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const node = require("../ast-node");
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module.exports = function (operations) {
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const isSelectionColumn = require("../validators/operations/is-selection-column")(operations);
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return function onlyColumns(_columns) {
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let [ columns ] = validateArguments(arguments, {
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columns: [ required, arrayOf([ required, isSelectionColumn ]) ]
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});
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return node({ type: "onlyColumns", columns: columns });
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};
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};
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