mirror of https://github.com/embarklabs/embark.git
31 lines
732 B
JavaScript
31 lines
732 B
JavaScript
|
class SourceMap {
|
||
|
|
constructor(sourceMapStringOrOffset, length, id) {
|
||
|
|
if(typeof sourceMapStringOrOffset == 'string') {
|
||
|
|
var [offset, length, id, ..._rest] = sourceMapStringOrOffset.split(":");
|
||
|
|
|
||
|
|
this.offset = parseInt(offset, 10);
|
||
|
|
this.length = parseInt(length, 10);
|
||
|
|
|
||
|
|
if(id) this.id = parseInt(id, 10);
|
||
|
|
} else {
|
||
|
|
this.offset = sourceMapStringOrOffset;
|
||
|
|
this.length = length;
|
||
|
|
this.id = id;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
subtract(sourceMap) {
|
||
|
|
var length = sourceMap.offset - this.offset;
|
||
|
|
return new SourceMap(this.offset, length);
|
||
|
|
}
|
||
|
|
|
||
|
|
toString() {
|
||
|
|
var parts = [this.offset, this.length];
|
||
|
|
if(this.id) parts.push(this.id);
|
||
|
|
|
||
|
|
return parts.join(':');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = SourceMap;
|