Mirrors/lodash
1
0
Fork 0
mirror of https://github.com/whoisclebs/lodash.git synced 2026-01-31 15:27:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

Cleanup lazy method wrapper.

Browse Source
This commit is contained in:
John-David Dalton
2015-07-18 12:52:56 -07:00
parent 8a205e1e32
commit 4054898170
1 changed files with 14 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
lodash.js
View File

@@ -11627,7 +11627,7 @@
// Add `LazyWrapper` methods to `lodash.prototype`.
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
var checkIteratee = /^(?:filter|map|reject)|While$/.test(methodName),
var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
isTaker = /^(?:first|last)$/.test(methodName),
retUnwrapped = isTaker || /^find/.test(methodName),
lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName];
@@ -11637,41 +11637,37 @@
}
lodash.prototype[methodName] = function() {
var args = isTaker ? [1] : arguments,
chainAll = this.__chain__,
value = this.__wrapped__,
isHybrid = !!this.__actions__.length,
isLazy = value instanceof LazyWrapper,
iteratee = args[0],
useLazy = isLazy || isArray(value);
if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
// Avoid lazy use if the iteratee has a "length" value other than `1`.
isLazy = useLazy = false;
}
var interceptor = function(value) {
var result = lodashFunc.apply(lodash, arrayPush([value], args));
return (isTaker && chainAll) ? result[0] : result;
};
if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
// Avoid lazy use if the iteratee has a "length" value other than `1`.
isLazy = useLazy = false;
}
var action = { 'func': thru, 'args': [interceptor], 'thisArg': undefined },
chainAll = this.__chain__,
isHybrid = !!this.__actions__.length,
isUnwrapped = retUnwrapped && !chainAll,
onlyLazy = isLazy && !isHybrid;
if (retUnwrapped && !chainAll) {
if (onlyLazy) {
value = value.clone();
value.__actions__.push(action);
return func.apply(this, args);
}
var result = lodashFunc.apply(lodash, arrayPush([this.value()], args));
return isTaker ? result[0] : result;
}
if (!retUnwrapped && useLazy) {
value = onlyLazy ? value : new LazyWrapper(this);
result = func.apply(value, args);
var result = func.apply(value, args);
result.__actions__.push(action);
return new LodashWrapper(result, chainAll);
}
return this.thru(interceptor);
if (isUnwrapped && onlyLazy) {
return func.apply(this, args);
}
result = this.thru(interceptor);
return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
};
});