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faster util.pushMutatorMap aliases

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This commit is contained in:
Sebastian McKenzie 2014-11-07 12:28:52 +11:00
parent 6f0ca947a7
commit a04513a3c7
1 changed files with 11 additions and 2 deletions
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13
lib/6to5/util.js
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@ -58,7 +58,16 @@ exports.sourceMapToComment = function (map) {
};
exports.pushMutatorMap = function (mutatorMap, key, kind, method) {
var alias = JSON.stringify(traverse.removeProperties(_.cloneDeep(key)));
var alias;
if (t.isIdentifier(key)) {
alias = key.name;
if (method.computed) alias = "computed:" + alias;
} else if (t.isLiteral(key)) {
alias = String(key.value);
} else {
alias = JSON.stringify(traverse.removeProperties(_.cloneDeep(key)));
}
var map;
if (_.has(mutatorMap, alias)) {
@ -174,7 +183,7 @@ exports.parse = function (opts, code, callback) {
ecmaVersion: Infinity,
strictMode: true,
onComment: comments,
locations: opts.sourceMap,
locations: true,
onToken: tokens,
ranges: true
});