37 lines
1.0 KiB
JavaScript
37 lines
1.0 KiB
JavaScript
"use strict";
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var useStrict = require("../../helpers/use-strict");
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var groupBy = require("lodash/collection/groupBy");
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var flatten = require("lodash/array/flatten");
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var values = require("lodash/object/values");
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// Priority:
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//
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// - 0 We want this to be at the **very** bottom
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// - 1 Default node position
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// - 2 Priority over normal nodes
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// - 3 We want this to be at the **very** top
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exports.BlockStatement =
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exports.Program = {
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exit: function (node) {
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var hasChange = false;
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for (var i = 0; i < node.body.length; i++) {
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var bodyNode = node.body[i];
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if (bodyNode && bodyNode._blockHoist != null) hasChange = true;
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}
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if (!hasChange) return;
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useStrict.wrap(node, function () {
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var nodePriorities = groupBy(node.body, function (bodyNode) {
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var priority = bodyNode._blockHoist;
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if (priority == null) priority = 1;
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if (priority === true) priority = 2;
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return priority;
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});
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node.body = flatten(values(nodePriorities).reverse());
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});
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}
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};
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