From 540851ab6acd7c9b562537b41cf3ffb29d5b2e74 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sat, 13 Apr 2013 11:12:01 -0700
Subject: [PATCH] Reorganize build.js modifications and remove compilation from
 the `lodash modern build`.

Former-commit-id: af5d0500be9e11d108bf941604ce2316cbd8c4b5
---
 build.js           | 397 ++++++++++++++++++++++-----------------------
 dist/lodash.js     | 260 ++++++++++++-----------------
 dist/lodash.min.js |  75 ++++-----
 3 files changed, 330 insertions(+), 402 deletions(-)

diff --git a/build.js b/build.js
index 04de9aa3c..e7ba3455c 100755
--- a/build.js
+++ b/build.js
@@ -380,18 +380,6 @@
     // remove `lodash.prototype` batch method assignments
     source = source.replace(/(?:\s*\/\/.*)*\n( *)forOwn\(lodash, *function\(func, *methodName\)[\s\S]+?\n\1}.+/g, '');
 
-    // move `mixin(lodash)` to after the method assignments
-    source = source.replace(/(?:\s*\/\/.*)*\n( *)mixin\(lodash\).+/, '');
-    source = source.replace(getMethodAssignments(source), function(match) {
-      var indent = /^ *(?=lodash\.)/m.exec(match)[0];
-      return match + [
-        '',
-        '',
-        '// add functions to `lodash.prototype`',
-        'mixin(lodash);'
-      ].join('\n' + indent);
-    });
-
     // replace `_.mixin`
     source = replaceFunction(source, 'mixin', [
       'function mixin(object) {',
@@ -449,6 +437,18 @@
       ].join('\n' + indent);
     });
 
+    // move `mixin(lodash)` to after the method assignments
+    source = source.replace(/(?:\s*\/\/.*)*\n( *)mixin\(lodash\).+/, '');
+    source = source.replace(getMethodAssignments(source), function(match) {
+      var indent = /^ *(?=lodash\.)/m.exec(match)[0];
+      return match + [
+        '',
+        '',
+        '// add functions to `lodash.prototype`',
+        'mixin(lodash);'
+      ].join('\n' + indent);
+    });
+
     return source;
   }
 
@@ -986,9 +986,12 @@
     // grab the method assignments snippet
     snippet = getMethodAssignments(source);
 
-    // remove method assignment  from `lodash.prototype`
+    // remove method assignment from `lodash.prototype`
     source = source.replace(RegExp('^ *lodash\\.prototype\\.' + funcName + ' *=.+\\n', 'm'), '');
 
+    // remove pseudo private methods
+    source = source.replace(RegExp('^(?: *//.*\\s*)* *lodash\\._' + funcName + ' *=.+\\n', 'm'), '');
+
     // remove assignment and aliases
     var modified = getAliases(funcName).concat(funcName).reduce(function(result, otherName) {
       return result.replace(RegExp('^(?: *//.*\\s*)* *lodash\\.' + otherName + ' *=.+\\n', 'm'), '');
@@ -1831,21 +1834,68 @@
       source = setUseStrictOption(source, isStrict);
 
       if (isLegacy) {
+        source = removeKeysOptimization(source);
+        source = removeSetImmediate(source);
+        source = removeSupportProp(source, 'fastBind');
+        source = replaceSupportProp(source, 'argsClass', 'false');
+
         _.each(['getPrototypeOf', 'nativeBind', 'nativeIsArray', 'nativeKeys'], function(varName) {
           source = replaceVar(source, varName, 'false');
         });
 
-        _.each(['argsClass', 'fastBind'], function(propName) {
-          source = replaceSupportProp(source, propName, 'false');
+        _.each(['isIeOpera', 'isV8', 'nativeBind', 'nativeIsArray', 'nativeKeys', 'reNative'], function(varName) {
+          source = removeVar(source, varName);
         });
 
-        source = removeKeysOptimization(source);
+        // remove native `Function#bind` branch in `_.bind`
+        source = source.replace(matchFunction(source, 'bind'), function(match) {
+          return match.replace(/(?:\s*\/\/.*)*\s*return support\.fastBind[^:]+:\s*/, 'return ');
+        });
+
+        // remove native `Array.isArray` branch in `_.isArray`
+        source = source.replace(matchFunction(source, 'isArray'), function(match) {
+          return match.replace(/nativeIsArray\s*\|\|\s*/, '');
+        });
+
+        // replace `_.keys` with `shimKeys`
+        source = source.replace(
+          matchFunction(source, 'keys').replace(/[\s\S]+?var keys *= */, ''),
+          matchFunction(source, 'shimKeys').replace(/[\s\S]+?var shimKeys *= */, '')
+        );
+
+        source = removeFunction(source, 'shimKeys');
+
+        // replace `_.isArguments` with fallback
+        source = source.replace(matchFunction(source, 'isArguments').replace(/[\s\S]+?function isArguments/, ''), function() {
+          var fallback = getIsArgumentsFallback(source),
+              body = fallback.match(/isArguments *= *function([\s\S]+? *});/)[1],
+              indent = getIndent(fallback);
+
+          return body.replace(RegExp('^' + indent, 'gm'), indent.slice(0, -2)) + '\n';
+        });
+
+        source = removeIsArgumentsFallback(source);
+      }
+      if (isModern) {
+        source = removeSupportArgsObject(source);
+        source = removeSupportSpliceObjects(source);
+        source = removeIsArgumentsFallback(source);
+
+        // remove `_.isPlainObject` fallback
+        source = source.replace(matchFunction(source, 'isPlainObject'), function(match) {
+          return match.replace(/!getPrototypeOf[^:]+:\s*/, '');
+        });
+
+        if (!isMobile) {
+          source = removeIsFunctionFallback(source);
+        }
       }
       if (isMobile || isUnderscore) {
         source = removeKeysOptimization(source);
         source = removeSetImmediate(source);
       }
       if (isModern || isUnderscore) {
+        source = removeSupportArgsClass(source);
         source = removeSupportNonEnumShadows(source);
         source = removeSupportEnumPrototypes(source);
         source = removeSupportOwnLast(source);
@@ -1941,16 +1991,6 @@
           });
         }
       }
-      if (isModern) {
-        // remove `_.isPlainObject` fallback
-        source = source.replace(matchFunction(source, 'isPlainObject'), function(match) {
-          return match.replace(/!getPrototypeOf[^:]+:\s*/, '');
-        });
-
-        if (!isMobile) {
-          source = removeIsFunctionFallback(source);
-        }
-      }
       if (isUnderscore) {
         // replace `_.assign`
         source = replaceFunction(source, 'assign', [
@@ -2383,12 +2423,19 @@
           '}'
         ].join('\n'));
 
+        // unexpose `lodash.support`
+        source = source.replace(/lodash\.support *= */, '');
+
         // remove `_.templateSettings.imports assignment
         source = source.replace(/,[^']*'imports':[^}]+}/, '');
 
         // remove large array optimizations
         source = removeFunction(source, 'cachedContains');
 
+        // replace `slice` with `nativeSlice.call`
+        source = removeFunction(source, 'slice');
+        source = source.replace(/([^.])\bslice\(/g, '$1nativeSlice.call(');
+
         // remove `_.isEqual` use from `createCallback`
         source = source.replace(matchFunction(source, 'createCallback'), function(match) {
           return match.replace(/\bisEqual\(([^,]+), *([^,]+)[^)]+\)/, '$1 === $2');
@@ -2401,19 +2448,36 @@
           });
         });
 
-        // replace `slice` with `nativeSlice.call`
-        source = removeFunction(source, 'slice');
-        source = source.replace(/([^.])\bslice\(/g, '$1nativeSlice.call(');
+        // modify `_.every`, `_.find`, `_.isEqual`, and `_.some` to use the private `indicatorObject`
+        _.each(['every', 'isEqual'], function(methodName) {
+          source = source.replace(matchFunction(source, methodName), function(match) {
+            return match.replace(/\(result *= *(.+?)\);/g, '!(result = $1) && indicatorObject;');
+          });
+        });
+
+        source = source.replace(matchFunction(source, 'find'), function(match) {
+          return match.replace(/return false/, 'return indicatorObject');
+        });
+
+        source = source.replace(matchFunction(source, 'some'), function(match) {
+          return match.replace(/!\(result *= *(.+?)\);/, '(result = $1) && indicatorObject;');
+        });
 
-        // replace `lodash.createCallback` references with `createCallback`
-        if (!useLodashMethod('createCallback')) {
-          source = source.replace(/\blodash\.(createCallback\()\b/g, '$1');
-        }
         // remove unneeded variables
         if (!useLodashMethod('clone') && !useLodashMethod('cloneDeep')) {
           source = removeVar(source, 'cloneableClasses');
           source = removeVar(source, 'ctorByClass');
         }
+        // remove chainability from `each` and `_.forEach`
+        if (!useLodashMethod('forEach')) {
+          _.each(['each', 'forEach'], function(methodName) {
+            source = source.replace(matchFunction(source, methodName), function(match) {
+              return match
+                .replace(/\n *return .+?([};\s]+)$/, '$1')
+                .replace(/\b(return) +result\b/, '$1')
+            });
+          });
+        }
         // remove unused features from `createBound`
         if (_.every(['bindKey', 'partial', 'partialRight'], function(methodName) {
               return !_.contains(buildMethods, methodName);
@@ -2516,12 +2580,6 @@
         }
       });
 
-      // remove `isArguments` fallback before `isArguments` is transformed by
-      // other parts of the build process
-      if (isRemoved(source, 'isArguments')) {
-        source = removeIsArgumentsFallback(source);
-      }
-
       // remove `iteratorTemplate` dependency checks from `_.template`
       source = source.replace(matchFunction(source, 'template'), function(match) {
         return match
@@ -2531,58 +2589,7 @@
 
       /*----------------------------------------------------------------------*/
 
-      if (isLegacy) {
-        source = removeSetImmediate(source);
-        source = removeSupportProp(source, 'fastBind');
-
-        _.each(['isIeOpera', 'isV8', 'nativeBind', 'nativeIsArray', 'nativeKeys', 'reNative'], function(varName) {
-          source = removeVar(source, varName);
-        });
-
-        // remove native `Function#bind` branch in `_.bind`
-        source = source.replace(matchFunction(source, 'bind'), function(match) {
-          return match.replace(/(?:\s*\/\/.*)*\s*return support\.fastBind[^:]+:\s*/, 'return ');
-        });
-
-        // remove native `Array.isArray` branch in `_.isArray`
-        source = source.replace(matchFunction(source, 'isArray'), function(match) {
-          return match.replace(/nativeIsArray\s*\|\|\s*/, '');
-        });
-
-        // replace `_.keys` with `shimKeys`
-        if (!isRemoved(source, 'keys')) {
-          source = source.replace(
-            matchFunction(source, 'keys').replace(/[\s\S]+?var keys *= */, ''),
-            matchFunction(source, 'shimKeys').replace(/[\s\S]+?var shimKeys *= */, '')
-          );
-
-          source = removeFunction(source, 'shimKeys');
-        }
-        // replace `_.isArguments` with fallback
-        if (!isRemoved(source, 'isArguments')) {
-          source = source.replace(matchFunction(source, 'isArguments').replace(/[\s\S]+?function isArguments/, ''), function() {
-            var fallback = getIsArgumentsFallback(source),
-                body = fallback.match(/isArguments *= *function([\s\S]+? *});/)[1],
-                indent = getIndent(fallback);
-
-            return body.replace(RegExp('^' + indent, 'gm'), indent.slice(0, -2)) + '\n';
-          });
-
-          source = removeIsArgumentsFallback(source);
-        }
-      }
-      if (isModern) {
-        source = removeSupportArgsObject(source);
-        source = removeSupportSpliceObjects(source);
-        source = removeIsArgumentsFallback(source);
-      }
       if (isModern || isUnderscore) {
-        source = removeSupportArgsClass(source);
-        source = removeSupportNodeClass(source);
-      }
-      if (isMobile || isUnderscore) {
-        source = removeVar(source, 'iteratorTemplate');
-
         // inline all functions defined with `createIterator`
         _.functions(lodash).forEach(function(methodName) {
           // strip leading underscores to match pseudo private functions
@@ -2595,86 +2602,62 @@
             });
           }
         });
-      }
-      if (isUnderscore) {
-        // remove `_.assign`, `_.forIn`, `_.forOwn`, `_.isPlainObject`, and `_.zipObject` assignments
-        (function() {
-          var snippet = getMethodAssignments(source),
-              modified = snippet;
 
-          if (!useLodashMethod('assign')) {
-            modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.assign *=.+\n/m, '');
-          }
+        if (isUnderscore) {
+          // unexpose "exit early" feature of `each`, `_.forEach`, `_.forIn`, and `_.forOwn`
+          _.each(['each', 'forEach', 'forIn', 'forOwn'], function(methodName) {
+            if (methodName == 'each' || !useLodashMethod(methodName)) {
+              source = source.replace(matchFunction(source, methodName), function(match) {
+                return match.replace(/=== *false\)/g, '=== indicatorObject)');
+              });
+            }
+          });
+
+          // remove `thisArg` from unexposed `forIn` and `forOwn`
+          _.each(['forIn', 'forOwn'], function(methodName) {
+            if (!useLodashMethod(methodName)) {
+              source = source.replace(matchFunction(source, methodName), function(match) {
+                return match
+                  .replace(/(callback), *thisArg/g, '$1')
+                  .replace(/^ *callback *=.+\n/m, '');
+              });
+            }
+          });
+
+          // replace `lodash.createCallback` references with `createCallback`
           if (!useLodashMethod('createCallback')) {
-            modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.createCallback *=.+\n/m, '');
+            source = source.replace(/\blodash\.(createCallback\()\b/g, '$1');
           }
-          if (!useLodashMethod('forIn')) {
-            modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.forIn *=.+\n/m, '');
-          }
-          if (!useLodashMethod('forOwn')) {
-            modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.forOwn *=.+\n/m, '');
-          }
-          if (!useLodashMethod('isPlainObject')) {
-            modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.isPlainObject *=.+\n/m, '');
-          }
-          if (!useLodashMethod('zipObject')) {
-            modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.zipObject *=.+\n/m, '');
-          }
-          source = source.replace(snippet, function() {
-            return modified;
-          });
-        }());
+          // remove `_.assign`, `_.forIn`, `_.forOwn`, `_.isPlainObject`, and `_.zipObject` assignments
+          (function() {
+            var snippet = getMethodAssignments(source),
+                modified = snippet;
 
-        // unexpose `lodash.support`
-        source = source.replace(/lodash\.support *= */, '');
-
-        // remove `thisArg` from unexposed `forIn` and `forOwn`
-        _.each(['forIn', 'forOwn'], function(methodName) {
-          if (!useLodashMethod(methodName)) {
-            source = source.replace(matchFunction(source, methodName), function(match) {
-              return match
-                .replace(/(callback), *thisArg/g, '$1')
-                .replace(/^ *callback *=.+\n/m, '');
+            if (!useLodashMethod('assign')) {
+              modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.assign *=.+\n/m, '');
+            }
+            if (!useLodashMethod('createCallback')) {
+              modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.createCallback *=.+\n/m, '');
+            }
+            if (!useLodashMethod('forIn')) {
+              modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.forIn *=.+\n/m, '');
+            }
+            if (!useLodashMethod('forOwn')) {
+              modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.forOwn *=.+\n/m, '');
+            }
+            if (!useLodashMethod('isPlainObject')) {
+              modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.isPlainObject *=.+\n/m, '');
+            }
+            if (!useLodashMethod('zipObject')) {
+              modified = modified.replace(/^(?: *\/\/.*\s*)* *lodash\.zipObject *=.+\n/m, '');
+            }
+            source = source.replace(snippet, function() {
+              return modified;
             });
-          }
-        });
-
-        // remove chainability from `each` and `_.forEach`
-        if (!useLodashMethod('forEach')) {
-          _.each(['each', 'forEach'], function(methodName) {
-            source = source.replace(matchFunction(source, methodName), function(match) {
-              return match
-                .replace(/\n *return .+?([};\s]+)$/, '$1')
-                .replace(/\b(return) +result\b/, '$1')
-            });
-          });
+          }());
         }
-
-        // unexpose "exit early" feature of `each`, `_.forEach`, `_.forIn`, and `_.forOwn`
-        _.each(['each', 'forEach', 'forIn', 'forOwn'], function(methodName) {
-          if (methodName == 'each' || !useLodashMethod(methodName)) {
-            source = source.replace(matchFunction(source, methodName), function(match) {
-              return match.replace(/=== *false\)/g, '=== indicatorObject)');
-            });
-          }
-        });
-
-        // modify `_.every`, `_.find`, `_.isEqual`, and `_.some` to use the private `indicatorObject`
-        _.each(['every', 'isEqual'], function(methodName) {
-          source = source.replace(matchFunction(source, methodName), function(match) {
-            return match.replace(/\(result *= *(.+?)\);/g, '!(result = $1) && indicatorObject;');
-          });
-        });
-
-        source = source.replace(matchFunction(source, 'find'), function(match) {
-          return match.replace(/return false/, 'return indicatorObject');
-        });
-
-        source = source.replace(matchFunction(source, 'some'), function(match) {
-          return match.replace(/!\(result *= *(.+?)\);/, '(result = $1) && indicatorObject;');
-        });
       }
-      if (!(isMobile || isUnderscore)) {
+      else {
         source = removeFromCreateIterator(source, 'support');
 
         // inline `iteratorTemplate` template
@@ -2756,17 +2739,52 @@
 
     /*------------------------------------------------------------------------*/
 
+    // modify/remove references to removed methods/variables
     if (!isTemplate) {
-      // modify/remove references to removed methods/variables
+      if (isRemoved(source, 'clone')) {
+        source = removeVar(source, 'cloneableClasses');
+        source = removeVar(source, 'ctorByClass');
+      }
+      if (isRemoved(source, 'clone', 'isEqual', 'isPlainObject')) {
+        source = removeSupportNodeClass(source);
+      }
+      if (isRemoved(source, 'createIterator', 'bind', 'keys')) {
+        source = removeSupportProp(source, 'fastBind');
+        source = removeVar(source, 'isV8');
+        source = removeVar(source, 'nativeBind');
+      }
+      if (isRemoved(source, 'createIterator', 'keys')) {
+        source = removeVar(source, 'nativeKeys');
+        source = removeKeysOptimization(source);
+        source = removeSupportNonEnumArgs(source);
+      }
+      if (isRemoved(source, 'defer')) {
+        source = removeSetImmediate(source);
+      }
       if (isRemoved(source, 'invert')) {
         source = replaceVar(source, 'htmlUnescapes', "{'&amp;':'&','&lt;':'<','&gt;':'>','&quot;':'\"','&#x27;':\"'\"}");
       }
       if (isRemoved(source, 'isArguments')) {
+        source = removeIsArgumentsFallback(source);
         source = replaceSupportProp(source, 'argsClass', 'true');
       }
+      if (isRemoved(source, 'isArguments', 'isEmpty')) {
+        source = removeSupportArgsClass(source);
+      }
+      if (isRemoved(source, 'isArray')) {
+        source = removeVar(source, 'nativeIsArray');
+      }
       if (isRemoved(source, 'isFunction')) {
         source = removeIsFunctionFallback(source);
       }
+      if (isRemoved(source, 'isPlainObject')) {
+        source = removeFunction(source, 'shimIsPlainObject');
+        source = removeVar(source, 'getPrototypeOf');
+        source = removeSupportOwnLast(source);
+      }
+      if (isRemoved(source, 'keys')) {
+        source = removeFunction(source, 'shimKeys');
+      }
       if (isRemoved(source, 'mixin')) {
         // inline `_.mixin` call to ensure proper chaining behavior
         source = source.replace(/^( *)mixin\(lodash\).+/m, function(match, indent) {
@@ -2788,6 +2806,14 @@
           ].join('\n' + indent);
         });
       }
+      if (isRemoved(source, 'parseInt')) {
+        source = removeVar(source, 'nativeParseInt');
+        source = removeVar(source, 'reLeadingZeros');
+      }
+      if (isRemoved(source, 'template')) {
+        // remove `templateSettings` assignment
+        source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *lodash\.templateSettings[\s\S]+?};\n/, '');
+      }
       if (isRemoved(source, 'value')) {
         source = removeFunction(source, 'wrapperToString');
         source = removeFunction(source, 'wrapperValueOf');
@@ -2816,39 +2842,6 @@
           .replace(/(?:\s*\/\/.*)*\n( *)(?:each|forEach)\(\['[\s\S]+?\n\1}.+/g, '')
           .replace(/(?:\s*\/\/.*)*\n *lodash\.prototype.+/g, '');
       }
-      // remove functions, variables, and snippets that the minifier may miss
-      if (isRemoved(source, 'clone')) {
-        source = removeVar(source, 'cloneableClasses');
-        source = removeVar(source, 'ctorByClass');
-      }
-      if (isRemoved(source, 'defer')) {
-        source = removeSetImmediate(source);
-      }
-      if (isRemoved(source, 'isArray')) {
-        source = removeVar(source, 'nativeIsArray');
-      }
-      if (isRemoved(source, 'isPlainObject')) {
-        source = removeFunction(source, 'shimIsPlainObject');
-        source = removeVar(source, 'getPrototypeOf');
-        source = removeSupportOwnLast(source);
-      }
-      if (isRemoved(source, 'keys')) {
-        source = removeFunction(source, 'shimKeys');
-      }
-      if (isRemoved(source, 'parseInt')) {
-        source = removeVar(source, 'nativeParseInt');
-        source = removeVar(source, 'reLeadingZeros');
-      }
-      if (isRemoved(source, 'template')) {
-        // remove `templateSettings` assignment
-        source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *lodash\.templateSettings[\s\S]+?};\n/, '');
-      }
-      if (isRemoved(source, 'isArguments', 'isEmpty')) {
-        source = removeSupportArgsClass(source);
-      }
-      if (isRemoved(source, 'clone', 'isEqual', 'isPlainObject')) {
-        source = removeSupportNodeClass(source);
-      }
       if (!/\beach\(/.test(source)) {
         source = source.replace(matchFunction(source, 'each'), '');
       }
@@ -2862,16 +2855,6 @@
         source = removeSupportNonEnumShadows(source);
         source = removeSupportEnumPrototypes(source);
       }
-      if (isRemoved(source, 'createIterator', 'bind', 'keys')) {
-        source = removeSupportProp(source, 'fastBind');
-        source = removeVar(source, 'isV8');
-        source = removeVar(source, 'nativeBind');
-      }
-      if (isRemoved(source, 'createIterator', 'keys')) {
-        source = removeVar(source, 'nativeKeys');
-        source = removeKeysOptimization(source);
-        source = removeSupportNonEnumArgs(source);
-      }
       if (!/support\.(?:enumPrototypes|nonEnumShadows|ownLast)\b/.test(source)) {
         // remove code used to resolve unneeded `support` properties
         source = source.replace(/^ *\(function[\s\S]+?\n(( *)var ctor *= *function[\s\S]+?(?:\n *for.+)+\n)([\s\S]+?)}\(1\)\);\n/m, function(match, setup, indent, body) {
diff --git a/dist/lodash.js b/dist/lodash.js
index 4cb22491c..eb8e8a60b 100644
--- a/dist/lodash.js
+++ b/dist/lodash.js
@@ -349,92 +349,6 @@
 
     /*--------------------------------------------------------------------------*/
 
-    /**
-     * The template used to create iterator functions.
-     *
-     * @private
-     * @param {Object} data The data object used to populate the text.
-     * @returns {String} Returns the interpolated text.
-     */
-    var iteratorTemplate = function(obj) {
-
-      var __p = 'var index, iterable = ' +
-      (obj.firstArg) +
-      ', result = ' +
-      (obj.init) +
-      ';\nif (!iterable) return result;\n' +
-      (obj.top) +
-      ';\n';
-       if (obj.arrays) {
-      __p += 'var length = iterable.length; index = -1;\nif (' +
-      (obj.arrays) +
-      ') {\n  while (++index < length) {\n    ' +
-      (obj.loop) +
-      '\n  }\n}\nelse {  ';
-       }
-
-       if (obj.useHas && obj.useKeys) {
-      __p += '\n  var ownIndex = -1,\n      ownProps = objectTypes[typeof iterable] ? keys(iterable) : [],\n      length = ownProps.length;\n\n  while (++ownIndex < length) {\n    index = ownProps[ownIndex];\n    ' +
-      (obj.loop) +
-      '\n  }  ';
-       } else {
-      __p += '\n  for (index in iterable) {';
-          if (obj.useHas) {
-      __p += '\n    if (';
-            if (obj.useHas) {
-      __p += 'hasOwnProperty.call(iterable, index)';
-       }
-      __p += ') {    ';
-       }
-      __p += 
-      (obj.loop) +
-      ';    ';
-       if (obj.useHas) {
-      __p += '\n    }';
-       }
-      __p += '\n  }  ';
-       }
-
-       if (obj.arrays) {
-      __p += '\n}';
-       }
-      __p += 
-      (obj.bottom) +
-      ';\nreturn result';
-
-      return __p
-    };
-
-    /** Reusable iterator options for `assign` and `defaults` */
-    var defaultsIteratorOptions = {
-      'args': 'object, source, guard',
-      'top':
-        'var args = arguments,\n' +
-        '    argsIndex = 0,\n' +
-        "    argsLength = typeof guard == 'number' ? 2 : args.length;\n" +
-        'while (++argsIndex < argsLength) {\n' +
-        '  iterable = args[argsIndex];\n' +
-        '  if (iterable && objectTypes[typeof iterable]) {',
-      'loop': "if (typeof result[index] == 'undefined') result[index] = iterable[index]",
-      'bottom': '  }\n}'
-    };
-
-    /** Reusable iterator options shared by `each`, `forIn`, and `forOwn` */
-    var eachIteratorOptions = {
-      'args': 'collection, callback, thisArg',
-      'top': "callback = callback && typeof thisArg == 'undefined' ? callback : lodash.createCallback(callback, thisArg)",
-      'arrays': false,
-      'loop': 'if (callback(iterable[index], index, collection) === false) return result'
-    };
-
-    /** Reusable iterator options for `forIn` and `forOwn` */
-    var forOwnIteratorOptions = {
-      'top': 'if (!objectTypes[typeof iterable]) return result;\n' + eachIteratorOptions.top,
-      'arrays': false
-    };
-
-    /*--------------------------------------------------------------------------*/
-
     /**
      * Creates a function optimized to search large arrays for a given `value`,
      * starting at `fromIndex`, using strict equality for comparisons, i.e. `===`.
@@ -567,54 +481,6 @@
       return bound;
     }
 
-    /**
-     * Creates compiled iteration functions.
-     *
-     * @private
-     * @param {Object} [options1, options2, ...] The compile options object(s).
-     *  arrays - A string of code to determine if the iterable is an array or array-like.
-     *  useHas - A boolean to specify using `hasOwnProperty` checks in the object loop.
-     *  useKeys - A boolean to specify using `_.keys` for own property iteration.
-     *  args - A string of comma separated arguments the iteration function will accept.
-     *  top - A string of code to execute before the iteration branches.
-     *  loop - A string of code to execute in the object loop.
-     *  bottom - A string of code to execute after the iteration branches.
-     * @returns {Function} Returns the compiled function.
-     */
-    function createIterator() {
-      var data = {
-        // iterator options
-        'arrays': 'isArray(iterable)',
-        'bottom': '',
-        'init': 'iterable',
-        'loop': '',
-        'top': '',
-        'useHas': true,
-        'useKeys': !!keys
-      };
-
-      // merge options into a template data object
-      for (var object, index = 0; object = arguments[index]; index++) {
-        for (var key in object) {
-          data[key] = object[key];
-        }
-      }
-      var args = data.args;
-      data.firstArg = /^[^,]+/.exec(args)[0];
-
-      // create the function factory
-      var factory = Function(
-          'hasOwnProperty, isArguments, isArray, isString, keys, ' +
-          'lodash, objectTypes',
-        'return function(' + args + ') {\n' + iteratorTemplate(data) + '\n}'
-      );
-      // return the compiled function
-      return factory(
-        hasOwnProperty, isArguments, isArray, isString, keys,
-        lodash, objectTypes
-      );
-    }
-
     /**
      * Used by `template` to escape characters for inclusion in compiled
      * string literals.
@@ -783,13 +649,18 @@
      * @param {Object} object The object to inspect.
      * @returns {Array} Returns a new array of property names.
      */
-    var shimKeys = createIterator({
-      'args': 'object',
-      'init': '[]',
-      'top': 'if (!(objectTypes[typeof object])) return result',
-      'loop': 'result.push(index)',
-      'arrays': false
-    });
+    var shimKeys = function (object) {
+      var index, iterable = object, result = [];
+      if (!iterable) return result;
+      if (!(objectTypes[typeof object])) return result;
+
+        for (index in iterable) {
+          if (hasOwnProperty.call(iterable, index)) {    
+          result.push(index);    
+          }
+        }    
+      return result
+    };
 
     /**
      * Creates an array composed of the own enumerable property names of `object`.
@@ -862,18 +733,40 @@
      * defaults(food, { 'name': 'banana', 'type': 'fruit' });
      * // => { 'name': 'apple', 'type': 'fruit' }
      */
-    var assign = createIterator(defaultsIteratorOptions, {
-      'top':
-        defaultsIteratorOptions.top.replace(';',
-          ';\n' +
-          "if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {\n" +
-          '  var callback = lodash.createCallback(args[--argsLength - 1], args[argsLength--], 2);\n' +
-          "} else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {\n" +
-          '  callback = args[--argsLength];\n' +
-          '}'
-        ),
-      'loop': 'result[index] = callback ? callback(result[index], iterable[index]) : iterable[index]'
-    });
+    var assign = function (object, source, guard) {
+      var index, iterable = object, result = iterable;
+      if (!iterable) return result;
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = typeof guard == 'number' ? 2 : args.length;
+      if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {
+        var callback = lodash.createCallback(args[--argsLength - 1], args[argsLength--], 2);
+      } else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {
+        callback = args[--argsLength];
+      }
+      while (++argsIndex < argsLength) {
+        iterable = args[argsIndex];
+        if (iterable && objectTypes[typeof iterable]) {;
+      var length = iterable.length; index = -1;
+      if (isArray(iterable)) {
+        while (++index < length) {
+          result[index] = callback ? callback(result[index], iterable[index]) : iterable[index]
+        }
+      }
+      else {    
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] ? keys(iterable) : [],
+            length = ownProps.length;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          result[index] = callback ? callback(result[index], iterable[index]) : iterable[index]
+        }    
+      }
+        }
+      };
+      return result
+    };
 
     /**
      * Creates a clone of `value`. If `deep` is `true`, nested objects will also
@@ -1066,7 +959,35 @@
      * _.defaults(food, { 'name': 'banana', 'type': 'fruit' });
      * // => { 'name': 'apple', 'type': 'fruit' }
      */
-    var defaults = createIterator(defaultsIteratorOptions);
+    var defaults = function (object, source, guard) {
+      var index, iterable = object, result = iterable;
+      if (!iterable) return result;
+      var args = arguments,
+          argsIndex = 0,
+          argsLength = typeof guard == 'number' ? 2 : args.length;
+      while (++argsIndex < argsLength) {
+        iterable = args[argsIndex];
+        if (iterable && objectTypes[typeof iterable]) {;
+      var length = iterable.length; index = -1;
+      if (isArray(iterable)) {
+        while (++index < length) {
+          if (typeof result[index] == 'undefined') result[index] = iterable[index]
+        }
+      }
+      else {    
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] ? keys(iterable) : [],
+            length = ownProps.length;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          if (typeof result[index] == 'undefined') result[index] = iterable[index]
+        }    
+      }
+        }
+      };
+      return result
+    };
 
     /**
      * This method is similar to `_.find`, except that it returns the key of the
@@ -1129,9 +1050,17 @@
      * });
      * // => alerts 'name' and 'bark' (order is not guaranteed)
      */
-    var forIn = createIterator(eachIteratorOptions, forOwnIteratorOptions, {
-      'useHas': false
-    });
+    var forIn = function (collection, callback, thisArg) {
+      var index, iterable = collection, result = iterable;
+      if (!iterable) return result;
+      if (!objectTypes[typeof iterable]) return result;
+      callback = callback && typeof thisArg == 'undefined' ? callback : lodash.createCallback(callback, thisArg);
+
+        for (index in iterable) {
+          if (callback(iterable[index], index, collection) === false) return result;    
+        }    
+      return result
+    };
 
     /**
      * Iterates over an object's own enumerable properties, executing the `callback`
@@ -1154,7 +1083,22 @@
      * });
      * // => alerts '0', '1', and 'length' (order is not guaranteed)
      */
-    var forOwn = createIterator(eachIteratorOptions, forOwnIteratorOptions);
+    var forOwn = function (collection, callback, thisArg) {
+      var index, iterable = collection, result = iterable;
+      if (!iterable) return result;
+      if (!objectTypes[typeof iterable]) return result;
+      callback = callback && typeof thisArg == 'undefined' ? callback : lodash.createCallback(callback, thisArg);
+
+        var ownIndex = -1,
+            ownProps = objectTypes[typeof iterable] ? keys(iterable) : [],
+            length = ownProps.length;
+
+        while (++ownIndex < length) {
+          index = ownProps[ownIndex];
+          if (callback(iterable[index], index, collection) === false) return result
+        }    
+      return result
+    };
 
     /**
      * Creates a sorted array of all enumerable properties, own and inherited,
diff --git a/dist/lodash.min.js b/dist/lodash.min.js
index b18ea58de..8a1387e81 100644
--- a/dist/lodash.min.js
+++ b/dist/lodash.min.js
@@ -4,40 +4,41 @@
  * Build: `lodash modern -o ./dist/lodash.js`
  * Underscore.js 1.4.4 underscorejs.org/LICENSE
  */
-;(function(n){function t(r){function a(n){return n&&typeof n=="object"&&!ge(n)&&Ht.call(n,"__wrapped__")?n:new K(n)}function B(n){var t=n.length,e=t>=c;if(e)for(var r={},u=-1;++u<t;){var a=f+n[u];(r[a]||(r[a]=[])).push(n[u])}return function(t){if(e){var u=f+t;return r[u]&&-1<mt(r[u],t)}return-1<mt(n,t)}}function F(n){return n.charCodeAt(0)}function R(n,t){var e=n.b,r=t.b;if(n=n.a,t=t.a,n!==t){if(n>t||typeof n=="undefined")return 1;if(n<t||typeof t=="undefined")return-1}return e<r?-1:1}function T(n,t,e,r){function u(){var r=arguments,c=i?this:t;
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