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"use strict";
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exports.__esModule = true;
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exports.default = function (_ref) {
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var node = _ref.node,
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parent = _ref.parent,
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scope = _ref.scope,
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id = _ref.id;
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if (node.id) return;
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if ((t.isObjectProperty(parent) || t.isObjectMethod(parent, { kind: "method" })) && (!parent.computed || t.isLiteral(parent.key))) {
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id = parent.key;
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} else if (t.isVariableDeclarator(parent)) {
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id = parent.id;
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if (t.isIdentifier(id)) {
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var binding = scope.parent.getBinding(id.name);
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if (binding && binding.constant && scope.getBinding(id.name) === binding) {
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node.id = id;
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node.id[t.NOT_LOCAL_BINDING] = true;
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return;
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}
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}
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} else if (t.isAssignmentExpression(parent)) {
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id = parent.left;
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} else if (!id) {
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return;
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}
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var name = void 0;
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if (id && t.isLiteral(id)) {
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name = id.value;
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} else if (id && t.isIdentifier(id)) {
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name = id.name;
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} else {
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return;
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}
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name = t.toBindingIdentifierName(name);
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id = t.identifier(name);
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id[t.NOT_LOCAL_BINDING] = true;
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var state = visit(node, name, scope);
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return wrap(state, node, id, scope) || node;
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};
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var _babelHelperGetFunctionArity = require("babel-helper-get-function-arity");
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var _babelHelperGetFunctionArity2 = _interopRequireDefault(_babelHelperGetFunctionArity);
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var _babelTemplate = require("babel-template");
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var _babelTemplate2 = _interopRequireDefault(_babelTemplate);
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var _babelTypes = require("babel-types");
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var t = _interopRequireWildcard(_babelTypes);
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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var buildPropertyMethodAssignmentWrapper = (0, _babelTemplate2.default)("\n (function (FUNCTION_KEY) {\n function FUNCTION_ID() {\n return FUNCTION_KEY.apply(this, arguments);\n }\n\n FUNCTION_ID.toString = function () {\n return FUNCTION_KEY.toString();\n }\n\n return FUNCTION_ID;\n })(FUNCTION)\n");
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var buildGeneratorPropertyMethodAssignmentWrapper = (0, _babelTemplate2.default)("\n (function (FUNCTION_KEY) {\n function* FUNCTION_ID() {\n return yield* FUNCTION_KEY.apply(this, arguments);\n }\n\n FUNCTION_ID.toString = function () {\n return FUNCTION_KEY.toString();\n };\n\n return FUNCTION_ID;\n })(FUNCTION)\n");
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var visitor = {
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"ReferencedIdentifier|BindingIdentifier": function ReferencedIdentifierBindingIdentifier(path, state) {
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if (path.node.name !== state.name) return;
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var localDeclar = path.scope.getBindingIdentifier(state.name);
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if (localDeclar !== state.outerDeclar) return;
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state.selfReference = true;
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path.stop();
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}
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};
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function wrap(state, method, id, scope) {
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if (state.selfReference) {
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if (scope.hasBinding(id.name) && !scope.hasGlobal(id.name)) {
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scope.rename(id.name);
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} else {
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if (!t.isFunction(method)) return;
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var build = buildPropertyMethodAssignmentWrapper;
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if (method.generator) build = buildGeneratorPropertyMethodAssignmentWrapper;
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var _template = build({
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FUNCTION: method,
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FUNCTION_ID: id,
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FUNCTION_KEY: scope.generateUidIdentifier(id.name)
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}).expression;
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_template.callee._skipModulesRemap = true;
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var params = _template.callee.body.body[0].params;
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for (var i = 0, len = (0, _babelHelperGetFunctionArity2.default)(method); i < len; i++) {
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params.push(scope.generateUidIdentifier("x"));
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}
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return _template;
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}
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}
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method.id = id;
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scope.getProgramParent().references[id.name] = true;
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}
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function visit(node, name, scope) {
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var state = {
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selfAssignment: false,
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selfReference: false,
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outerDeclar: scope.getBindingIdentifier(name),
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references: [],
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name: name
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};
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var binding = scope.getOwnBinding(name);
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if (binding) {
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if (binding.kind === "param") {
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state.selfReference = true;
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} else {}
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} else if (state.outerDeclar || scope.hasGlobal(name)) {
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scope.traverse(node, visitor, state);
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}
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return state;
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}
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module.exports = exports["default"];
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