00001 var composeArgs = require('./_composeArgs'),
00002 composeArgsRight = require('./_composeArgsRight'),
00003 replaceHolders = require('./_replaceHolders');
00004
00006 var PLACEHOLDER = '__lodash_placeholder__';
00007
00009 var WRAP_BIND_FLAG = 1,
00010 WRAP_BIND_KEY_FLAG = 2,
00011 WRAP_CURRY_BOUND_FLAG = 4,
00012 WRAP_CURRY_FLAG = 8,
00013 WRAP_ARY_FLAG = 128,
00014 WRAP_REARG_FLAG = 256;
00015
00016
00017 var nativeMin = Math.min;
00018
00035 function mergeData(data, source) {
00036 var bitmask = data[1],
00037 srcBitmask = source[1],
00038 newBitmask = bitmask | srcBitmask,
00039 isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);
00040
00041 var isCombo =
00042 ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
00043 ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
00044 ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));
00045
00046
00047 if (!(isCommon || isCombo)) {
00048 return data;
00049 }
00050
00051 if (srcBitmask & WRAP_BIND_FLAG) {
00052 data[2] = source[2];
00053
00054 newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
00055 }
00056
00057 var value = source[3];
00058 if (value) {
00059 var partials = data[3];
00060 data[3] = partials ? composeArgs(partials, value, source[4]) : value;
00061 data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
00062 }
00063
00064 value = source[5];
00065 if (value) {
00066 partials = data[5];
00067 data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
00068 data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
00069 }
00070
00071 value = source[7];
00072 if (value) {
00073 data[7] = value;
00074 }
00075
00076 if (srcBitmask & WRAP_ARY_FLAG) {
00077 data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
00078 }
00079
00080 if (data[9] == null) {
00081 data[9] = source[9];
00082 }
00083
00084 data[0] = source[0];
00085 data[1] = newBitmask;
00086
00087 return data;
00088 }
00089
00090 module.exports = mergeData;