jquery/build/lib/squeeze-more.js

23 lines
742 B
JavaScript

var jsp = require("./parse-js"),
pro = require("./process"),
slice = jsp.slice,
member = jsp.member,
PRECEDENCE = jsp.PRECEDENCE,
OPERATORS = jsp.OPERATORS;
function ast_squeeze_more(ast) {
var w = pro.ast_walker(), walk = w.walk;
return w.with_walkers({
"call": function(expr, args) {
if (expr[0] == "dot" && expr[2] == "toString" && args.length == 0) {
// foo.toString() ==> foo+""
return [ "binary", "+", expr[1], [ "string", "" ]];
}
}
}, function() {
return walk(ast);
});
};
exports.ast_squeeze_more = ast_squeeze_more;