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"use strict";
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exports.__esModule = true;
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var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");
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var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
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var _trimRight = require("trim-right");
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var _trimRight2 = _interopRequireDefault(_trimRight);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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var SPACES_RE = /^[ \t]+$/;
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var Buffer = function () {
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function Buffer(map) {
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(0, _classCallCheck3.default)(this, Buffer);
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this._map = null;
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this._buf = [];
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this._last = "";
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this._queue = [];
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this._position = {
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line: 1,
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column: 0
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};
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this._sourcePosition = {
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identifierName: null,
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line: null,
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column: null,
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filename: null
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};
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this._map = map;
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}
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Buffer.prototype.get = function get() {
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this._flush();
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var map = this._map;
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var result = {
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code: (0, _trimRight2.default)(this._buf.join("")),
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map: null,
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rawMappings: map && map.getRawMappings()
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};
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if (map) {
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Object.defineProperty(result, "map", {
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configurable: true,
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enumerable: true,
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get: function get() {
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return this.map = map.get();
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},
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set: function set(value) {
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Object.defineProperty(this, "map", { value: value, writable: true });
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}
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});
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}
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return result;
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};
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Buffer.prototype.append = function append(str) {
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this._flush();
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var _sourcePosition = this._sourcePosition,
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line = _sourcePosition.line,
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column = _sourcePosition.column,
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filename = _sourcePosition.filename,
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identifierName = _sourcePosition.identifierName;
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this._append(str, line, column, identifierName, filename);
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};
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Buffer.prototype.queue = function queue(str) {
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if (str === "\n") while (this._queue.length > 0 && SPACES_RE.test(this._queue[0][0])) {
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this._queue.shift();
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}var _sourcePosition2 = this._sourcePosition,
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line = _sourcePosition2.line,
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column = _sourcePosition2.column,
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filename = _sourcePosition2.filename,
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identifierName = _sourcePosition2.identifierName;
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this._queue.unshift([str, line, column, identifierName, filename]);
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};
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Buffer.prototype._flush = function _flush() {
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var item = void 0;
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while (item = this._queue.pop()) {
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this._append.apply(this, item);
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}
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};
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Buffer.prototype._append = function _append(str, line, column, identifierName, filename) {
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if (this._map && str[0] !== "\n") {
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this._map.mark(this._position.line, this._position.column, line, column, identifierName, filename);
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}
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this._buf.push(str);
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this._last = str[str.length - 1];
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for (var i = 0; i < str.length; i++) {
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if (str[i] === "\n") {
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this._position.line++;
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this._position.column = 0;
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} else {
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this._position.column++;
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}
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}
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};
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Buffer.prototype.removeTrailingNewline = function removeTrailingNewline() {
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if (this._queue.length > 0 && this._queue[0][0] === "\n") this._queue.shift();
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};
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Buffer.prototype.removeLastSemicolon = function removeLastSemicolon() {
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if (this._queue.length > 0 && this._queue[0][0] === ";") this._queue.shift();
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};
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Buffer.prototype.endsWith = function endsWith(suffix) {
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if (suffix.length === 1) {
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var last = void 0;
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if (this._queue.length > 0) {
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var str = this._queue[0][0];
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last = str[str.length - 1];
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} else {
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last = this._last;
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}
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return last === suffix;
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}
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var end = this._last + this._queue.reduce(function (acc, item) {
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return item[0] + acc;
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}, "");
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if (suffix.length <= end.length) {
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return end.slice(-suffix.length) === suffix;
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}
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return false;
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};
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Buffer.prototype.hasContent = function hasContent() {
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return this._queue.length > 0 || !!this._last;
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};
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Buffer.prototype.source = function source(prop, loc) {
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if (prop && !loc) return;
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var pos = loc ? loc[prop] : null;
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this._sourcePosition.identifierName = loc && loc.identifierName || null;
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this._sourcePosition.line = pos ? pos.line : null;
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this._sourcePosition.column = pos ? pos.column : null;
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this._sourcePosition.filename = loc && loc.filename || null;
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};
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Buffer.prototype.withSource = function withSource(prop, loc, cb) {
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if (!this._map) return cb();
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var originalLine = this._sourcePosition.line;
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var originalColumn = this._sourcePosition.column;
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var originalFilename = this._sourcePosition.filename;
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var originalIdentifierName = this._sourcePosition.identifierName;
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this.source(prop, loc);
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cb();
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this._sourcePosition.line = originalLine;
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this._sourcePosition.column = originalColumn;
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this._sourcePosition.filename = originalFilename;
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this._sourcePosition.identifierName = originalIdentifierName;
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};
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Buffer.prototype.getCurrentColumn = function getCurrentColumn() {
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var extra = this._queue.reduce(function (acc, item) {
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return item[0] + acc;
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}, "");
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var lastIndex = extra.lastIndexOf("\n");
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return lastIndex === -1 ? this._position.column + extra.length : extra.length - 1 - lastIndex;
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};
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Buffer.prototype.getCurrentLine = function getCurrentLine() {
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var extra = this._queue.reduce(function (acc, item) {
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return item[0] + acc;
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}, "");
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var count = 0;
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for (var i = 0; i < extra.length; i++) {
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if (extra[i] === "\n") count++;
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}
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return this._position.line + count;
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};
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return Buffer;
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}();
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exports.default = Buffer;
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module.exports = exports["default"];
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