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12 | function __set__() {
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13 | arguments.varName = arguments[0];
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14 | arguments.varValue = arguments[1];
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15 |
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16 |
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17 |
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18 | arguments.refs = arguments[2] || {
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19 | isArray: Array.isArray,
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20 | TypeError: TypeError,
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21 | stringify: JSON.stringify
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22 |
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23 |
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24 |
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25 | };
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26 | arguments.src = "";
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27 | arguments.revertArgs = [];
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28 |
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29 | if (typeof arguments[0] === "object") {
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30 | arguments.env = arguments.varName;
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31 | if (!arguments.env || arguments.refs.isArray(arguments.env)) {
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32 | throw new arguments.refs.TypeError("__set__ expects an object as env");
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33 | }
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34 | arguments.revertArgs[0] = {};
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35 | for (arguments.varName in arguments.env) {
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36 | if (arguments.env.hasOwnProperty(arguments.varName)) {
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37 | arguments.varValue = arguments.env[arguments.varName];
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38 | arguments.src += arguments.varName + " = arguments.env[" + arguments.refs.stringify(arguments.varName) + "]; ";
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39 | try {
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40 |
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41 |
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42 | arguments.revertArgs[0][arguments.varName] = eval(arguments.varName);
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43 | } catch (err) {
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44 | arguments.revertArgs[0][arguments.varName] = undefined;
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45 | }
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46 | }
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47 | }
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48 | } else if (typeof arguments.varName === "string") {
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49 | if (!arguments.varName) {
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50 | throw new arguments.refs.TypeError("__set__ expects a non-empty string as a variable name");
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51 | }
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52 | arguments.src = arguments.varName + " = arguments.varValue;";
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53 | try {
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54 |
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55 |
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56 | arguments.revertArgs = [arguments.varName, eval(arguments.varName)];
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57 | } catch (err) {
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58 | arguments.revertArgs = [arguments.varName, undefined];
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59 | }
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60 | } else {
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61 | throw new arguments.refs.TypeError("__set__ expects an environment object or a non-empty string as a variable name");
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62 | }
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63 |
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64 |
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65 | arguments.revertArgs[2] = arguments.refs;
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66 |
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67 | eval(arguments.src);
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68 |
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69 | return function (revertArgs) {
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70 | __set__.apply(null, revertArgs);
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71 | }.bind(null, arguments.revertArgs);
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72 | }
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73 |
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74 | module.exports = __set__;
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