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memoizee

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memoizee - npm Package Compare versions

Comparing version

0.2.3
to
0.2.4

6

lib/_base.js

@@ -5,5 +5,5 @@ // To be used internally, memoize factory

var callable = require('es5-ext/lib/Object/valid-callable')
, forEach = require('es5-ext/lib/Object/for-each')
, ee = require('event-emitter')
var callable = require('es5-ext/lib/Object/valid-callable')
, forEach = require('es5-ext/lib/Object/for-each')
, ee = require('event-emitter/lib/core')

@@ -10,0 +10,0 @@ , ext;

4

lib/ext/dispose.js

@@ -20,7 +20,7 @@ // Call dispose callback on each cache purge

delete conf.cache[id];
dispose.apply(null, slice.call(value, 1));
dispose.apply(conf.memoized['_memoize:context_'], slice.call(value, 1));
} : function (id) {
var value = conf.cache[id];
delete conf.cache[id];
dispose(value);
dispose.call(conf.memoized['_memoize:context_'], value);
});

@@ -27,0 +27,0 @@

10

lib/ext/method.js

@@ -5,3 +5,4 @@ // Memoized methods factory

var global = require('es5-ext/lib/global')
var d = require('es5-ext/lib/Object/descriptor')
, global = require('es5-ext/lib/global')
, extend = require('es5-ext/lib/Object/extend')

@@ -27,6 +28,9 @@ , isString = require('es5-ext/lib/String/is-string')

conf.memoized = function () {
var memoized;
if (this && (this !== global)) {
method.descriptor.value = conf.memoize(conf.fn.bind(this), options);
memoized = method.descriptor.value =
conf.memoize(conf.fn.bind(this), options);
defineProperty(this, method.name, method.descriptor);
return method.descriptor.value.apply(this, arguments);
defineProperty(memoized, '_memoize:context_', d(this));
return memoized.apply(this, arguments);
}

@@ -33,0 +37,0 @@ return fn.apply(this, arguments);

9

lib/primitive.js

@@ -5,3 +5,4 @@ // Memoize working in primitive mode

var hasListeners = require('event-emitter/lib/has-listeners')
var CustomError = require('es5-ext/lib/Error/custom')
, hasListeners = require('event-emitter/lib/has-listeners')

@@ -53,2 +54,5 @@ , getId0 = function () { return ''; }

}
if (cache.hasOwnProperty(id)) {
throw new CustomError("Circular invocation", 'CIRCULAR_INVOCATION');
}
cache[id] = value;

@@ -65,2 +69,5 @@ initListeners && conf.emit('init', id);

value = apply.call(conf.fn, this, arguments);
if (cache.hasOwnProperty(id)) {
throw new CustomError("Circular invocation", 'CIRCULAR_INVOCATION');
}
cache[id] = value;

@@ -67,0 +74,0 @@ initListeners && conf.emit('init', id);

56

lib/regular.js

@@ -5,15 +5,14 @@ // Memoize working in object mode (supports any type of arguments)

var indexOf = require('es5-ext/lib/Array/prototype/e-index-of')
var CustomError = require('es5-ext/lib/Error/custom')
, indexOf = require('es5-ext/lib/Array/prototype/e-index-of')
, hasListeners = require('event-emitter/lib/has-listeners')
, apply = Function.prototype.apply
, apply = Function.prototype.apply;
, getId0 = function () { return ''; };
// Results are saved internally within array matrix:
// [0] -> Result of calling function with no arguments
// [1] -> Matrix that keeps results when function is called with one argument
// [1][0] -> Array of arguments with which
// [1][0] -> Array of arguments with which
// function have been called
// [1][1] -> Array of results that matches [1][0] array
// [1][1] -> Array of results that matches [1][0] array
// [2] -> Matrix that keeps results when function is called with two arguments

@@ -26,3 +25,3 @@ // [2][0] -> Array of first (of two) arguments with which

// function have been called.
// [2][1][x][1] -> Array of results that matches [2][1][x][0]
// [2][1][x][1] -> Array of results that matches [2][1][x][0]
// arguments array

@@ -36,4 +35,10 @@ // ...and so on

if (length === 0) {
get = set = clear = conf.get = getId0;
conf.clearAll = function () { cache = conf.cache = {}; };
map = null;
get = conf.get = function () { return map; };
set = function () { return ((map = 1)); };
clear = function () { map = null; };
conf.clearAll = function () {
map = null;
cache = conf.cache = {};
};
} else {

@@ -45,3 +50,4 @@ count = 0;

get = conf.get = function (args) {
return map2[indexOf.call(map1, args[0])];
var index = indexOf.call(map1, args[0]);
return (index === -1) ? null : map2[index];
};

@@ -71,9 +77,7 @@ set = function (args) {

if (length === 0) {
return set[length];
return set[length] || null;
} else if ((set = set[length])) {
while (index < (length - 1)) {
i = indexOf.call(set[0], args[index]);
if (i === -1) {
return;
}
if (i === -1) return null;
set = set[1][i];

@@ -83,8 +87,6 @@ ++index;

i = indexOf.call(set[0], args[index]);
if (i === -1) {
return;
}
return set[1][i];
if (i === -1) return null;
return set[1][i] || null;
}
return;
return null;
};

@@ -161,5 +163,3 @@ set = function (args) {

i = indexOf.call(set[0], args[index]);
if (i === -1) {
return null;
}
if (i === -1) return null;
set = set[1][i];

@@ -169,6 +169,4 @@ ++index;

i = indexOf.call(set[0], args[index]);
if (i === -1) {
return null;
}
return set[1][i];
if (i === -1) return null;
return set[1][i] || null;
};

@@ -229,3 +227,3 @@ set = function (args) {

var id = get(arguments), value;
if (cache.hasOwnProperty(id)) {
if (id != null) {
hitListeners && conf.emit('hit', id, arguments, this);

@@ -235,2 +233,6 @@ return cache[id];

value = apply.call(fn, this, arguments);
id = get(arguments);
if (id != null) {
throw new CustomError("Circular invocation", 'CIRCULAR_INVOCATION');
}
id = set(arguments);

@@ -237,0 +239,0 @@ cache[id] = value;

6

package.json
{
"name": "memoizee",
"version": "0.2.3",
"version": "0.2.4",
"description": "Complete memoize/cache solution. Works with any type and length of function arguments",

@@ -37,3 +37,3 @@ "main": "lib",

"dependencies": {
"es5-ext": "0.9.x",
"es5-ext": "~0.9.2",
"event-emitter": "~0.2.1",

@@ -43,3 +43,3 @@ "next-tick": "0.1.x"

"devDependencies": {
"tad": "0.1.x"
"tad": "~0.1.15"
},

@@ -46,0 +46,0 @@ "author": "Mariusz Nowak <medikoo+memoize@medikoo.com> (http://www.medikoo.com/)",

33

README.md

@@ -40,8 +40,33 @@ # Memoize – Complete memoize/cache solution for JavaScript

$ npm install memoizee
```
$ npm install memoizee
```
### Browser
Browser bundle can be easily created with help of [modules-webmake](https://github.com/medikoo/modules-webmake). Mind that it relies on some EcmaScript5 features, so for older browsers you need as well [es5-shim](https://github.com/kriskowal/es5-shim)
Browser bundle can be easily created with help of [modules-webmake](https://github.com/medikoo/modules-webmake). Assuming that you have latest [Node.js](http://nodejs.org/) and [Git](http://git-scm.com/) installed, following will work in command shell of any system (Linux/MacOS/Windows):
```
$ npm install -g webmake
$ git clone git://github.com/medikoo/memoize.git
$ cd memoize
$ npm install
$ cd ..
$ webmake --name=memoize memoize/lib/index.js memoize.js
```
Last command bundles memoize with all it's functionalities, but you may need just a subset, you can have that by addressing specific modules directly, e.g. with following you will build just primitive mode with support for asynchronous functions:
```
$ webmake --name=memoize --include=memoize/lib/ext/async.js memoize/lib/primitive.js memoize.js
```
If you work with AMD modules, add _amd_ option, so generated bundle is one:
```
$ webmake --name=memoize --amd memoize/lib/index.js memoize.js
```
_Mind that memoize relies on some EcmaScript5 features, so for older browsers you need to load as well [es5-shim](https://github.com/kriskowal/es5-shim)_
## Configuration

@@ -103,2 +128,6 @@

__Note. If your arguments are collections (arrays or hashes) that you want to memoize by content (not by self objects), you need to cast them to strings__, for that just use [primitive mode](#primitive-mode). Arrays have standard string representation and work with primitive mode out of a box, for hashes you need to define `toString` method, that will produce unique string descriptions.
Similarly __if you want to memoize functions by their code representation not by their objects, you should use primitive mode__.
### Memoizing asynchronous functions

@@ -105,0 +134,0 @@

26

test/ext/dispose.js

@@ -44,2 +44,28 @@ 'use strict';

},
"Method": function (a) {
var fn, i = 0, value = [];
fn = function (x, y) {
++i;
return x + y;
};
Object.defineProperty(value, 'mfn', { value: memoize(fn, {
method: 'mfn',
dispose: function (val) { this.push(val); }
}), configurable: true });
value.mfn(3, 7);
value.mfn(5, 8);
value.mfn(12, 4);
a.deep(value, [], "Pre");
value.mfn.clear(5, 8);
a.deep(value, [13], "#1");
value.length = 0;
value.mfn.clear(12, 4);
a.deep(value, [16], "#2");
value.length = 0;
value.mfn(77, 11);
value.mfn.clearAll();
a.deep(value, [10, 88], "Clear all");
},
"Ref counter": function (a) {

@@ -46,0 +72,0 @@ var mfn, fn, i = 0, value = [];

17

test/primitive.js

@@ -39,4 +39,21 @@ 'use strict';

a(i, 2, "Called twice");
},
"Circular": function (a) {
var i = 0, fn;
fn = t(function (x) {
if (++i < 2) fn(x);
});
a.throws(function () {
fn('foo');
}, 'CIRCULAR_INVOCATION');
i = 0;
fn = t(function (x, y) {
if (++i < 2) fn(x, y);
});
a.throws(function () {
fn('foo', 'bar');
}, 'CIRCULAR_INVOCATION');
}
};
};

29

test/regular.js

@@ -125,3 +125,3 @@ 'use strict';

fn = function (a, b, c) {
return a + ++i;
return a + (++i);
};

@@ -138,5 +138,5 @@

a(mfn(6, x, 1), 8, "Reinit");
a(i, 2, "Reinit count")
a(i, 2, "Reinit count");
a(mfn(3, x, 1), 8, "Reinit Cached");
a(i, 2, "Reinit count")
a(i, 2, "Reinit count");
},

@@ -155,5 +155,5 @@ "1": function (a) {

a(mfn(3, x, 1), 6, "Reinit");
a(i, 3, "Reinit count")
a(i, 3, "Reinit count");
a(mfn(3, x, 1), 6, "Reinit Cached");
a(i, 3, "Reinit count")
a(i, 3, "Reinit count");
},

@@ -172,5 +172,5 @@ "3": function (a) {

a(mfn(3, x, 1), 6, "Reinit");
a(i, 3, "Reinit count")
a(i, 3, "Reinit count");
a(mfn(3, x, 1), 6, "Reinit Cached");
a(i, 3, "Reinit count")
a(i, 3, "Reinit count");
},

@@ -189,9 +189,9 @@ "Any": function (a) {

a(mfn(3, x, 1), 6, "Reinit");
a(i, 3, "Reinit count")
a(i, 3, "Reinit count");
a(mfn(3, x, 1), 6, "Reinit Cached");
a(i, 3, "Reinit count")
a(i, 3, "Reinit count");
}
};
},
"All": function () {
"All": function (a) {
var i = 0, fn, x = {};

@@ -217,4 +217,13 @@

}
},
"Circular": function (a) {
var i = 0, fn;
fn = t(function (x) {
if (++i < 2) fn(x);
});
a.throws(function () {
fn(34);
}, 'CIRCULAR_INVOCATION');
}
};
};
.lint

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.travis.yml

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CHANGES

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