lepu-test-platform-web/node_modules/babel-generator/lib/buffer.js

202 lines
5.5 KiB
JavaScript

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