1 | "use strict";
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2 |
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3 | exports.__esModule = true;
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4 |
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5 | exports.default = function (_ref) {
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6 | var t = _ref.types;
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7 |
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8 | function getTempId(scope) {
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9 | var id = scope.path.getData("functionBind");
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10 | if (id) return id;
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11 |
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12 | id = scope.generateDeclaredUidIdentifier("context");
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13 | return scope.path.setData("functionBind", id);
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14 | }
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15 |
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16 | function getStaticContext(bind, scope) {
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17 | var object = bind.object || bind.callee.object;
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18 | return scope.isStatic(object) && object;
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19 | }
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20 |
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21 | function inferBindContext(bind, scope) {
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22 | var staticContext = getStaticContext(bind, scope);
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23 | if (staticContext) return staticContext;
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24 |
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25 | var tempId = getTempId(scope);
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26 | if (bind.object) {
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27 | bind.callee = t.sequenceExpression([t.assignmentExpression("=", tempId, bind.object), bind.callee]);
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28 | } else {
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29 | bind.callee.object = t.assignmentExpression("=", tempId, bind.callee.object);
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30 | }
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31 | return tempId;
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32 | }
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33 |
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34 | return {
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35 | inherits: require("babel-plugin-syntax-function-bind"),
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36 |
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37 | visitor: {
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38 | CallExpression: function CallExpression(_ref2) {
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39 | var node = _ref2.node,
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40 | scope = _ref2.scope;
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41 |
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42 | var bind = node.callee;
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43 | if (!t.isBindExpression(bind)) return;
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44 |
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45 | var context = inferBindContext(bind, scope);
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46 | node.callee = t.memberExpression(bind.callee, t.identifier("call"));
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47 | node.arguments.unshift(context);
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48 | },
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49 | BindExpression: function BindExpression(path) {
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50 | var node = path.node,
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51 | scope = path.scope;
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52 |
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53 | var context = inferBindContext(node, scope);
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54 | path.replaceWith(t.callExpression(t.memberExpression(node.callee, t.identifier("bind")), [context]));
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55 | }
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56 | }
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57 | };
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58 | };
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59 |
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60 | module.exports = exports["default"]; |
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