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9 |
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10 | 'use strict';
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11 |
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12 | var KeyEscapeUtils = require('./KeyEscapeUtils');
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13 | var traverseAllChildren = require('./traverseAllChildren');
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14 | var warning = require('fbjs/lib/warning');
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15 |
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16 | var ReactComponentTreeHook;
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17 |
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18 | if (typeof process !== 'undefined' && process.env && process.env.NODE_ENV === 'test') {
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19 |
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20 |
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21 |
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22 |
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23 |
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24 | ReactComponentTreeHook = require('./ReactComponentTreeHook');
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25 | }
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26 |
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29 |
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32 |
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33 | function flattenSingleChildIntoContext(traverseContext, child, name, selfDebugID) {
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34 |
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35 | if (traverseContext && typeof traverseContext === 'object') {
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36 | var result = traverseContext;
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37 | var keyUnique = result[name] === undefined;
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38 | if (process.env.NODE_ENV !== 'production') {
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39 | if (!ReactComponentTreeHook) {
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40 | ReactComponentTreeHook = require('./ReactComponentTreeHook');
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41 | }
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42 | if (!keyUnique) {
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43 | process.env.NODE_ENV !== 'production' ? warning(false, 'flattenChildren(...): Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, only ' + 'the first child will be used.%s', KeyEscapeUtils.unescape(name), ReactComponentTreeHook.getStackAddendumByID(selfDebugID)) : void 0;
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44 | }
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45 | }
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46 | if (keyUnique && child != null) {
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47 | result[name] = child;
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48 | }
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49 | }
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50 | }
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51 |
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52 |
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53 |
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54 |
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55 |
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56 |
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57 | function flattenChildren(children, selfDebugID) {
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58 | if (children == null) {
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59 | return children;
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60 | }
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61 | var result = {};
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62 |
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63 | if (process.env.NODE_ENV !== 'production') {
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64 | traverseAllChildren(children, function (traverseContext, child, name) {
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65 | return flattenSingleChildIntoContext(traverseContext, child, name, selfDebugID);
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66 | }, result);
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67 | } else {
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68 | traverseAllChildren(children, flattenSingleChildIntoContext, result);
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69 | }
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70 | return result;
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71 | }
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72 |
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73 | module.exports = flattenChildren; |
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