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Tweak _.intersection to still hit fast paths in engines.

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Former-commit-id: e8cb944bd6223bb30d58da343c4b5a3f296a4956
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John-David Dalton
2013-06-07 08:24:30 -07:00
parent a46ef8d1a6
commit b928abb956
1 changed files with 7 additions and 5 deletions
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12
lodash.js
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@@ -3993,20 +3993,22 @@
seen = getArray(); seen = getArray();
while (++argsIndex < argsLength) { while (++argsIndex < argsLength) {
var value = argsIndex ? args[argsIndex] : seen; var value = args[argsIndex];
caches[argsIndex] = indexOf === basicIndexOf && (value && value.length) >= largeArraySize && createCache(value); caches[argsIndex] = indexOf === basicIndexOf &&
(value ? value.length : 0) >= largeArraySize &&
createCache(argsIndex ? args[argsIndex] : seen);
} }
outer: outer:
while (++index < length) { while (++index < length) {
var cache = caches[0]; var cache = caches[0];
value = array[index]; value = array[index];
if ((cache ? cacheIndexOf : indexOf)(cache || seen, value) < 0) { if ((cache ? cacheIndexOf(cache, value) : indexOf(seen, value)) < 0) {
argsIndex = argsLength; argsIndex = argsLength;
seen.push(value); (cache || seen).push(value);
while (--argsIndex) { while (--argsIndex) {
cache = caches[argsIndex]; cache = caches[argsIndex];
if ((cache ? cacheIndexOf : indexOf)(cache || args[argsIndex], value) < 0) { if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
continue outer; continue outer;
} }
} }