1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
"use strict";
exports.__esModule = true;
var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");
var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
var _trimEnd = require("lodash/trimEnd");
var _trimEnd2 = _interopRequireDefault(_trimEnd);
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();
return {
code: (0, _trimEnd2.default)(this._buf.join("")),
map: this._map ? this._map.get() : null
};
};
Buffer.prototype.append = function append(str) {
this._flush();
var _sourcePosition = this._sourcePosition;
var line = _sourcePosition.line;
var column = _sourcePosition.column;
var filename = _sourcePosition.filename;
var 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;
var line = _sourcePosition2.line;
var column = _sourcePosition2.column;
var filename = _sourcePosition2.filename;
var 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"];
|
