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