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"use strict";
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exports.__esModule = true;
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exports.CodeGenerator = undefined;
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var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");
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var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
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var _possibleConstructorReturn2 = require("babel-runtime/helpers/possibleConstructorReturn");
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var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);
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var _inherits2 = require("babel-runtime/helpers/inherits");
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var _inherits3 = _interopRequireDefault(_inherits2);
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exports.default = function (ast, opts, code) {
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var gen = new Generator(ast, opts, code);
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return gen.generate();
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};
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var _detectIndent = require("detect-indent");
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var _detectIndent2 = _interopRequireDefault(_detectIndent);
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var _sourceMap = require("./source-map");
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var _sourceMap2 = _interopRequireDefault(_sourceMap);
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var _babelMessages = require("babel-messages");
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var messages = _interopRequireWildcard(_babelMessages);
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var _printer = require("./printer");
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var _printer2 = _interopRequireDefault(_printer);
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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 Generator = function (_Printer) {
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(0, _inherits3.default)(Generator, _Printer);
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function Generator(ast) {
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var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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var code = arguments[2];
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(0, _classCallCheck3.default)(this, Generator);
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var tokens = ast.tokens || [];
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var format = normalizeOptions(code, opts, tokens);
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var map = opts.sourceMaps ? new _sourceMap2.default(opts, code) : null;
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var _this = (0, _possibleConstructorReturn3.default)(this, _Printer.call(this, format, map, tokens));
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_this.ast = ast;
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return _this;
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}
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Generator.prototype.generate = function generate() {
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return _Printer.prototype.generate.call(this, this.ast);
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};
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return Generator;
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}(_printer2.default);
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function normalizeOptions(code, opts, tokens) {
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var style = " ";
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if (code && typeof code === "string") {
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var indent = (0, _detectIndent2.default)(code).indent;
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if (indent && indent !== " ") style = indent;
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}
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var format = {
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auxiliaryCommentBefore: opts.auxiliaryCommentBefore,
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auxiliaryCommentAfter: opts.auxiliaryCommentAfter,
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shouldPrintComment: opts.shouldPrintComment,
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retainLines: opts.retainLines,
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retainFunctionParens: opts.retainFunctionParens,
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comments: opts.comments == null || opts.comments,
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compact: opts.compact,
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minified: opts.minified,
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concise: opts.concise,
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quotes: opts.quotes || findCommonStringDelimiter(code, tokens),
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jsonCompatibleStrings: opts.jsonCompatibleStrings,
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indent: {
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adjustMultilineComment: true,
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style: style,
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base: 0
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},
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flowCommaSeparator: opts.flowCommaSeparator
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};
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if (format.minified) {
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format.compact = true;
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format.shouldPrintComment = format.shouldPrintComment || function () {
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return format.comments;
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};
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} else {
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format.shouldPrintComment = format.shouldPrintComment || function (value) {
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return format.comments || value.indexOf("@license") >= 0 || value.indexOf("@preserve") >= 0;
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};
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}
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if (format.compact === "auto") {
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format.compact = code.length > 500000;
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if (format.compact) {
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console.error("[BABEL] " + messages.get("codeGeneratorDeopt", opts.filename, "500KB"));
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}
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}
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if (format.compact) {
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format.indent.adjustMultilineComment = false;
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}
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return format;
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}
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function findCommonStringDelimiter(code, tokens) {
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var DEFAULT_STRING_DELIMITER = "double";
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if (!code) {
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return DEFAULT_STRING_DELIMITER;
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}
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var occurrences = {
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single: 0,
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double: 0
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};
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var checked = 0;
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for (var i = 0; i < tokens.length; i++) {
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var token = tokens[i];
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if (token.type.label !== "string") continue;
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var raw = code.slice(token.start, token.end);
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if (raw[0] === "'") {
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occurrences.single++;
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} else {
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occurrences.double++;
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}
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checked++;
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if (checked >= 3) break;
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}
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if (occurrences.single > occurrences.double) {
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return "single";
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} else {
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return "double";
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}
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}
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var CodeGenerator = exports.CodeGenerator = function () {
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function CodeGenerator(ast, opts, code) {
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(0, _classCallCheck3.default)(this, CodeGenerator);
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this._generator = new Generator(ast, opts, code);
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}
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CodeGenerator.prototype.generate = function generate() {
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return this._generator.generate();
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};
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return CodeGenerator;
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}();
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