52 lines
1.1 KiB
JavaScript
52 lines
1.1 KiB
JavaScript
"use strict";
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// https://github.com/sebmarkbage/ecmascript-rest-spread
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var t = require("../../../types");
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exports.experimental = true;
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exports.manipulateOptions = function (opts) {
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if (opts.whitelist.length) opts.whitelist.push("es6.destructuring");
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};
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var hasSpread = function (node) {
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for (var i = 0; i < node.properties.length; i++) {
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if (t.isSpreadProperty(node.properties[i])) {
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return true;
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}
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}
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return false;
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};
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exports.ObjectExpression = function (node, parent, scope, file) {
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if (!hasSpread(node)) return;
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var args = [];
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var props = [];
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var push = function () {
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if (!props.length) return;
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args.push(t.objectExpression(props));
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props = [];
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};
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for (var i = 0; i < node.properties.length; i++) {
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var prop = node.properties[i];
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if (t.isSpreadProperty(prop)) {
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push();
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args.push(prop.argument);
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} else {
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props.push(prop);
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}
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}
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push();
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if (!t.isObjectExpression(args[0])) {
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args.unshift(t.objectExpression([]));
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}
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return t.callExpression(file.addHelper("extends"), args);
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};
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