28 lines
673 B
JavaScript
28 lines
673 B
JavaScript
var utils = require('../utils'),
|
|
nodes = require('../nodes');
|
|
|
|
/**
|
|
* This is a heler function for the slice method
|
|
*
|
|
* @param {String|Ident} vals
|
|
* @param {Unit} start [0]
|
|
* @param {Unit} end [vals.length]
|
|
* @return {String|Literal|Null}
|
|
* @api public
|
|
*/
|
|
(module.exports = function slice(val, start, end) {
|
|
start = start && start.nodes[0].val;
|
|
end = end && end.nodes[0].val;
|
|
|
|
val = utils.unwrap(val).nodes;
|
|
|
|
if (val.length > 1) {
|
|
return utils.coerce(val.slice(start, end), true);
|
|
}
|
|
|
|
var result = val[0].string.slice(start, end);
|
|
|
|
return val[0] instanceof nodes.Ident
|
|
? new nodes.Ident(result)
|
|
: new nodes.String(result);
|
|
}).raw = true;
|