aaac7fed
 liuqimichale
add
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const formatPosition = (pos) => {
if(pos === null)
return "";
const typeOfPos = typeof pos;
switch(typeOfPos) {
case "string":
return pos;
case "number":
return `${pos}`;
case "object":
if(typeof pos.line === "number" && typeof pos.column === "number")
return `${pos.line}:${pos.column}`;
else if(typeof pos.line === "number")
return `${pos.line}:?`;
else if(typeof pos.index === "number")
return `+${pos.index}`;
else
return "";
default:
return "";
}
};
const formatLocation = (loc) => {
if(loc === null)
return "";
const typeOfLoc = typeof loc;
switch(typeOfLoc) {
case "string":
return loc;
case "number":
return `${loc}`;
case "object":
if(loc.start && loc.end) {
if(typeof loc.start.line === "number" && typeof loc.end.line === "number" && typeof loc.end.column === "number" && loc.start.line === loc.end.line)
return `${formatPosition(loc.start)}-${loc.end.column}`;
return `${formatPosition(loc.start)}-${formatPosition(loc.end)}`;
}
if(loc.start)
return formatPosition(loc.start);
return formatPosition(loc);
default:
return "";
}
};
module.exports = formatLocation;
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