From 3ce001a4f6f8a9da47c458df3b1bdf95ebda1ec9 Mon Sep 17 00:00:00 2001
From: Aaron Jensen <aaronjensen@gmail.com>
Date: Tue, 11 Aug 2015 23:53:05 -0700
Subject: [PATCH] Replace lodash curry with our own
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lodash's curry is great and does a lot, but we don't need it all. This
is quite a bit faster.

Currently, it does away with placeholder support.

updeep curry partial call x 9,951,410 ops/sec ±1.61% (62 runs sampled)
lodash curry partial call x 988,949 ops/sec ±1.36% (62 runs sampled)
---
 lib/if.js          |  6 ++++++
 lib/index.js       |  5 ++---
 lib/is.js          |  2 +-
 lib/update.js      |  2 +-
 lib/updateIn.js    |  2 +-
 lib/util/curry.js  | 22 ++++++++++++++++++++++
 lib/withDefault.js |  2 +-
 lib/wrap.js        |  2 +-
 8 files changed, 35 insertions(+), 8 deletions(-)
 create mode 100644 lib/if.js

diff --git a/lib/if.js b/lib/if.js
new file mode 100644
index 0000000..1e9ed2d
--- /dev/null
+++ b/lib/if.js
@@ -0,0 +1,6 @@
+import ifElse from './ifElse';
+import curry from './util/curry';
+
+export default curry((predicate, trueUpdates, object) =>
+  ifElse(predicate, trueUpdates, {}, object)
+);
diff --git a/lib/index.js b/lib/index.js
index 77375ea..72fb5b4 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,5 +1,6 @@
 import freeze from './freeze';
 import is from './is';
+import _if from './if';
 import ifElse from './ifElse';
 import map from './map';
 import omit from './omit';
@@ -8,11 +9,9 @@ import update from './update';
 import updateIn from './updateIn';
 import withDefault from './withDefault';
 
-import { placeholder as _ } from 'lodash/function/curry';
-
 const u = update;
 
-u.if = ifElse(_, _, {});
+u.if = _if;
 u.ifElse = ifElse;
 u.is = is;
 u.freeze = freeze;
diff --git a/lib/is.js b/lib/is.js
index c5e8db0..0e3eb6d 100644
--- a/lib/is.js
+++ b/lib/is.js
@@ -1,5 +1,5 @@
 import splitPath from './util/splitPath';
-import curry from 'lodash/function/curry';
+import curry from './util/curry';
 
 function is(path, predicate, object) {
   const parts = splitPath(path);
diff --git a/lib/update.js b/lib/update.js
index 5640197..707b4ec 100644
--- a/lib/update.js
+++ b/lib/update.js
@@ -75,4 +75,4 @@ function update(updates, object, ...args) {
   return { ...object, ...resolvedUpdates };
 }
 
-export default wrap(update);
+export default wrap(update, 2);
diff --git a/lib/updateIn.js b/lib/updateIn.js
index 09cc6cc..72a9d71 100644
--- a/lib/updateIn.js
+++ b/lib/updateIn.js
@@ -1,4 +1,4 @@
-import curry from 'lodash/function/curry';
+import curry from './util/curry';
 import update from './update';
 import splitPath from './util/splitPath';
 
diff --git a/lib/util/curry.js b/lib/util/curry.js
index 1344bdb..1727308 100644
--- a/lib/util/curry.js
+++ b/lib/util/curry.js
@@ -28,3 +28,25 @@ export function curry3(fn) {
     return curried;
   };
 }
+
+export function curry4(fn) {
+  return function curried(a, b, c, d, e, f) {
+    const n = arguments.length;
+
+    if (n >= 4) return fn(a, b, c, d, e, f);
+    if (n === 3) return curry1((d, e, f) => fn(a, b, c, d, e, f));
+    if (n === 2) return curry2((c, d, e, f) => fn(a, b, c, d, e, f));
+    if (n === 1) return curry3((b, c, d, e, f) => fn(a, b, c, d, e, f));
+    return curried;
+  };
+}
+
+export default function curry(fn, length = fn.length) {
+  return [
+    fn,
+    curry1,
+    curry2,
+    curry3,
+    curry4,
+  ][length](fn);
+}
diff --git a/lib/withDefault.js b/lib/withDefault.js
index 7ef9a48..3dc1fe1 100644
--- a/lib/withDefault.js
+++ b/lib/withDefault.js
@@ -1,5 +1,5 @@
 import update from './update';
-import curry from 'lodash/function/curry';
+import curry from './util/curry';
 
 function withDefault(defaultValue, updates, object) {
   if (typeof object === 'undefined') {
diff --git a/lib/wrap.js b/lib/wrap.js
index 1a81f4f..918e286 100644
--- a/lib/wrap.js
+++ b/lib/wrap.js
@@ -1,4 +1,4 @@
-import curry from 'lodash/function/curry';
+import curry from './util/curry';
 import freeze from './freeze';
 
 export default function wrap(func, length = func.length) {