ce4c83ff
 wxy
初始提交
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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;
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