Repository: rtfeldman/seamless-immutable
Pull request #126 (2016-04-28 01:08:18)

Immutable.from (a reference to Immutable)
This is a PR in response to #123, which allows users who follow & lint the condition that `new` precedes any capitalized, constructor function to use this library without littering their codebase with `// eslint-disable-line` comments:
> http://eslint.org/docs/rules/new-cap

**Before**:

```js
const thing = Immutable({}); // eslint-disable-line
```

**After**:

```js
const thing = Immutable.from({});
````

I did a find/replace for `= Immutable(` to `= Immutable.from` in `test/`, and all 2108 tests still pass.


Patch:
diff --git a/README.md b/README.md
index af5e993..d055e2b 100644
--- a/README.md
+++ b/README.md
@@ -77,6 +77,18 @@ Immutable({all: "your base", are: {belong: "to them"}}).merge({are: {belong: "to
 // Immutable({all: "your base", are: {belong: "to us"}})
 ```
 
+## Immutable.from
+
+If your linter cringes with the use of `Immutable` without a preceding `new`
+(e.g. ESLint's [new-cap](http://eslint.org/docs/rules/new-cap) rule),
+use `Immutable.from`:
+
+```javascript
+Immutable.from([1, 2, 3]);
+// is functionally the same as calling:
+Immutable([1, 2, 3])
+```
+
 ## Immutable Array
 
 Like a regular Array, but immutable! You can construct these by passing
diff --git a/seamless-immutable.development.js b/seamless-immutable.development.js
index 0edeaad..ac1283b 100644
--- a/seamless-immutable.development.js
+++ b/seamless-immutable.development.js
@@ -549,6 +549,7 @@
   }
 
   // Export the library
+  Immutable.from           = Immutable;
   Immutable.isImmutable    = isImmutable;
   Immutable.ImmutableError = ImmutableError;
 
diff --git a/seamless-immutable.development.min.js b/seamless-immutable.development.min.js
index 3cc4b3b..87a3dd1 100644
--- a/seamless-immutable.development.min.js
+++ b/seamless-immutable.development.min.js
@@ -1,1 +1,1 @@
-/* (c) 2016, Richard Feldman, github.com/rtfeldman/seamless-immutable/blob/master/LICENSE */!function(){"use strict";function a(a,b,c){Object.defineProperty(a,b,{enumerable:!1,configurable:!1,writable:!1,value:c})}function b(b,c){a(b,c,function(){throw new f("The "+c+" method cannot be invoked on an Immutable data structure.")})}function c(b){a(b,G,!0)}function d(a){return"object"==typeof a?null===a||Boolean(Object.getOwnPropertyDescriptor(a,G)):!0}function e(a){return!(null===a||"object"!=typeof a||a instanceof Array||a instanceof Date)}function f(a){var b=new Error(a);return b.__proto__=f,b}function g(a,d){c(a);for(var e in d)d.hasOwnProperty(e)&&b(a,d[e]);return Object.freeze(a),a}function h(b,c){var d=b[c];a(b,c,function(){return D(d.apply(b,arguments))})}function i(a,b){if(a in this&&this[a]===b)return this;var c=p.call(this);return c[a]=D(b),k(c)}function j(a,b){var c=a[0];if(1===a.length)return i.call(this,c,b);var d,e=a.slice(1),f=this[c];if(d="object"==typeof f&&null!==f&&"function"==typeof f.setIn?f.setIn(e,b):j.call(M,e,b),c in this&&f===d)return this;var g=p.call(this);return g[c]=d,k(g)}function k(b){for(var c in K)if(K.hasOwnProperty(c)){var d=K[c];h(b,d)}a(b,"flatMap",n),a(b,"asObject",q),a(b,"asMutable",p),a(b,"set",i),a(b,"setIn",j),a(b,"update",w),a(b,"updateIn",y);for(var e=0,f=b.length;f>e;e++)b[e]=D(b[e]);return g(b,J)}function l(b){return a(b,"asMutable",m),g(b,L)}function m(){return new Date(this.getTime())}function n(a){if(0===arguments.length)return this;var b,c=[],d=this.length;for(b=0;d>b;b++){var e=a(this[b],b,this);e instanceof Array?c.push.apply(c,e):c.push(e)}return k(c)}function o(a){if("undefined"==typeof a&&0===arguments.length)return this;if("function"!=typeof a){var b=a instanceof Array?a:Array.prototype.slice.call(arguments);a=function(a,c){return-1!==b.indexOf(c)}}var c=this.instantiateEmptyObject();for(var d in this)this.hasOwnProperty(d)&&a(this[d],d)===!1&&(c[d]=this[d]);return B(c,{instantiateEmptyObject:this.instantiateEmptyObject})}function p(a){var b,c,d=[];if(a&&a.deep)for(b=0,c=this.length;c>b;b++)d.push(r(this[b]));else for(b=0,c=this.length;c>b;b++)d.push(this[b]);return d}function q(a){"function"!=typeof a&&(a=function(a){return a});var b,c={},d=this.length;for(b=0;d>b;b++){var e=a(this[b],b,this),f=e[0],g=e[1];c[f]=g}return B(c)}function r(a){return!a||"object"!=typeof a||!Object.getOwnPropertyDescriptor(a,G)||a instanceof Date?a:a.asMutable({deep:!0})}function s(a,b){for(var c in a)Object.getOwnPropertyDescriptor(a,c)&&(b[c]=a[c]);return b}function t(a,b){function c(a,c,f){var g=D(c[f]),j=i&&i(a[f],g,b),k=a[f];if(void 0!==d||void 0!==j||!a.hasOwnProperty(f)||g!==k&&g===g){var l;l=j?j:h&&e(k)&&e(g)?k.merge(g,b):g,(k!==l&&l===l||!a.hasOwnProperty(f))&&(void 0===d&&(d=s(a,a.instantiateEmptyObject())),d[f]=l)}}if(0===arguments.length)return this;if(null===a||"object"!=typeof a)throw new TypeError("Immutable#merge can only be invoked with objects or arrays, not "+JSON.stringify(a));var d,f,g=a instanceof Array,h=b&&b.deep,i=b&&b.merger;if(g)for(var j=0;j<a.length;j++){var k=a[j];for(f in k)k.hasOwnProperty(f)&&c(this,k,f)}else for(f in a)Object.getOwnPropertyDescriptor(a,f)&&c(this,a,f);return void 0===d?this:B(d,{instantiateEmptyObject:this.instantiateEmptyObject})}function u(a,b){var c=a[0];if(1===a.length)return v.call(this,c,b);var d,e=a.slice(1),f=this[c];if(d=this.hasOwnProperty(c)&&"object"==typeof f&&null!==f&&"function"==typeof f.setIn?f.setIn(e,b):u.call(N,e,b),this.hasOwnProperty(c)&&f===d)return this;var g=s(this,this.instantiateEmptyObject());return g[c]=d,B(g,this)}function v(a,b){if(this.hasOwnProperty(a)&&this[a]===b)return this;var c=s(this,this.instantiateEmptyObject());return c[a]=D(b),B(c,this)}function w(a,b){var c=Array.prototype.slice.call(arguments,2),d=this[a];return this.set(a,b.apply(d,[d].concat(c)))}function x(a,b){for(var c=0,d=b.length;null!=a&&d>c;c++)a=a[b[c]];return c&&c==d?a:void 0}function y(a,b){var c=Array.prototype.slice.call(arguments,2),d=x(this,a);return this.setIn(a,b.apply(d,[d].concat(c)))}function z(a){var b,c=this.instantiateEmptyObject();if(a&&a.deep)for(b in this)this.hasOwnProperty(b)&&(c[b]=r(this[b]));else for(b in this)this.hasOwnProperty(b)&&(c[b]=this[b]);return c}function A(){return{}}function B(b,c){var d=c&&c.instantiateEmptyObject?c.instantiateEmptyObject:A;return a(b,"merge",t),a(b,"without",o),a(b,"asMutable",z),a(b,"instantiateEmptyObject",d),a(b,"set",v),a(b,"setIn",u),a(b,"update",w),a(b,"updateIn",y),g(b,H)}function C(a){return"object"==typeof a&&null!==a&&(a.$$typeof===F||a.$$typeof===E)}function D(a,b,c){if(d(a)||C(a))return a;if(a instanceof Array)return k(a.slice());if(a instanceof Date)return l(new Date(a.getTime()));var e=b&&b.prototype,g=e&&e!==Object.prototype?function(){return Object.create(e)}:A,h=g();if(null==c&&(c=64),0>=c)throw new f("Attempt to construct Immutable from a deeply nested object was detected. 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\ No newline at end of file
+/* (c) 2016, Richard Feldman, github.com/rtfeldman/seamless-immutable/blob/master/LICENSE */!function(){"use strict";function a(a,b,c){Object.defineProperty(a,b,{enumerable:!1,configurable:!1,writable:!1,value:c})}function b(b,c){a(b,c,function(){throw new f("The "+c+" method cannot be invoked on an Immutable data structure.")})}function c(b){a(b,G,!0)}function d(a){return"object"==typeof a?null===a||Boolean(Object.getOwnPropertyDescriptor(a,G)):!0}function e(a){return!(null===a||"object"!=typeof a||a instanceof Array||a instanceof Date)}function f(a){var b=new Error(a);return b.__proto__=f,b}function g(a,d){c(a);for(var e in d)d.hasOwnProperty(e)&&b(a,d[e]);return Object.freeze(a),a}function h(b,c){var d=b[c];a(b,c,function(){return D(d.apply(b,arguments))})}function i(a,b){if(a in this&&this[a]===b)return this;var c=p.call(this);return c[a]=D(b),k(c)}function j(a,b){var c=a[0];if(1===a.length)return i.call(this,c,b);var d,e=a.slice(1),f=this[c];if(d="object"==typeof f&&null!==f&&"function"==typeof f.setIn?f.setIn(e,b):j.call(M,e,b),c in this&&f===d)return this;var g=p.call(this);return g[c]=d,k(g)}function k(b){for(var c in K)if(K.hasOwnProperty(c)){var d=K[c];h(b,d)}a(b,"flatMap",n),a(b,"asObject",q),a(b,"asMutable",p),a(b,"set",i),a(b,"setIn",j),a(b,"update",w),a(b,"updateIn",y);for(var e=0,f=b.length;f>e;e++)b[e]=D(b[e]);return g(b,J)}function l(b){return a(b,"asMutable",m),g(b,L)}function m(){return new Date(this.getTime())}function n(a){if(0===arguments.length)return this;var b,c=[],d=this.length;for(b=0;d>b;b++){var e=a(this[b],b,this);e instanceof Array?c.push.apply(c,e):c.push(e)}return k(c)}function o(a){if("undefined"==typeof a&&0===arguments.length)return this;if("function"!=typeof a){var b=a instanceof Array?a:Array.prototype.slice.call(arguments);a=function(a,c){return-1!==b.indexOf(c)}}var c=this.instantiateEmptyObject();for(var d in this)this.hasOwnProperty(d)&&a(this[d],d)===!1&&(c[d]=this[d]);return B(c,{instantiateEmptyObject:this.instantiateEmptyObject})}function p(a){var b,c,d=[];if(a&&a.deep)for(b=0,c=this.length;c>b;b++)d.push(r(this[b]));else for(b=0,c=this.length;c>b;b++)d.push(this[b]);return d}function q(a){"function"!=typeof a&&(a=function(a){return a});var b,c={},d=this.length;for(b=0;d>b;b++){var e=a(this[b],b,this),f=e[0],g=e[1];c[f]=g}return B(c)}function r(a){return!a||"object"!=typeof a||!Object.getOwnPropertyDescriptor(a,G)||a instanceof Date?a:a.asMutable({deep:!0})}function s(a,b){for(var c in a)Object.getOwnPropertyDescriptor(a,c)&&(b[c]=a[c]);return b}function t(a,b){function c(a,c,f){var g=D(c[f]),j=i&&i(a[f],g,b),k=a[f];if(void 0!==d||void 0!==j||!a.hasOwnProperty(f)||g!==k&&g===g){var l;l=j?j:h&&e(k)&&e(g)?k.merge(g,b):g,(k!==l&&l===l||!a.hasOwnProperty(f))&&(void 0===d&&(d=s(a,a.instantiateEmptyObject())),d[f]=l)}}if(0===arguments.length)return this;if(null===a||"object"!=typeof a)throw new TypeError("Immutable#merge can only be invoked with objects or arrays, not "+JSON.stringify(a));var d,f,g=a instanceof Array,h=b&&b.deep,i=b&&b.merger;if(g)for(var j=0;j<a.length;j++){var k=a[j];for(f in k)k.hasOwnProperty(f)&&c(this,k,f)}else for(f in a)Object.getOwnPropertyDescriptor(a,f)&&c(this,a,f);return void 0===d?this:B(d,{instantiateEmptyObject:this.instantiateEmptyObject})}function u(a,b){var c=a[0];if(1===a.length)return v.call(this,c,b);var d,e=a.slice(1),f=this[c];if(d=this.hasOwnProperty(c)&&"object"==typeof f&&null!==f&&"function"==typeof f.setIn?f.setIn(e,b):u.call(N,e,b),this.hasOwnProperty(c)&&f===d)return this;var g=s(this,this.instantiateEmptyObject());return g[c]=d,B(g,this)}function v(a,b){if(this.hasOwnProperty(a)&&this[a]===b)return this;var c=s(this,this.instantiateEmptyObject());return c[a]=D(b),B(c,this)}function w(a,b){var c=Array.prototype.slice.call(arguments,2),d=this[a];return this.set(a,b.apply(d,[d].concat(c)))}function x(a,b){for(var c=0,d=b.length;null!=a&&d>c;c++)a=a[b[c]];return c&&c==d?a:void 0}function y(a,b){var c=Array.prototype.slice.call(arguments,2),d=x(this,a);return this.setIn(a,b.apply(d,[d].concat(c)))}function z(a){var b,c=this.instantiateEmptyObject();if(a&&a.deep)for(b in this)this.hasOwnProperty(b)&&(c[b]=r(this[b]));else for(b in this)this.hasOwnProperty(b)&&(c[b]=this[b]);return c}function A(){return{}}function B(b,c){var d=c&&c.instantiateEmptyObject?c.instantiateEmptyObject:A;return a(b,"merge",t),a(b,"without",o),a(b,"asMutable",z),a(b,"instantiateEmptyObject",d),a(b,"set",v),a(b,"setIn",u),a(b,"update",w),a(b,"updateIn",y),g(b,H)}function C(a){return"object"==typeof a&&null!==a&&(a.$$typeof===F||a.$$typeof===E)}function D(a,b,c){if(d(a)||C(a))return a;if(a instanceof Array)return k(a.slice());if(a instanceof Date)return l(new Date(a.getTime()));var e=b&&b.prototype,g=e&&e!==Object.prototype?function(){return Object.create(e)}:A,h=g();if(null==c&&(c=64),0>=c)throw new f("Attempt to construct Immutable from a deeply nested object was detected. 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\ No newline at end of file
diff --git a/seamless-immutable.production.min.js b/seamless-immutable.production.min.js
index 5425dd6..095dfd8 100644
--- a/seamless-immutable.production.min.js
+++ b/seamless-immutable.production.min.js
@@ -1,1 +1,1 @@
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Symbol&&Symbol["for"]&&Symbol["for"]("react.element"),E=60103,F="__immutable_invariants_hold",G=["setPrototypeOf"],H=["keys"],I=G.concat(["push","pop","sort","splice","shift","unshift","reverse"]),J=H.concat(["map","filter","slice","concat","reduce","reduceRight"]),K=G.concat(["setDate","setFullYear","setHours","setMilliseconds","setMinutes","setMonth","setSeconds","setTime","setUTCDate","setUTCFullYear","setUTCHours","setUTCMilliseconds","setUTCMinutes","setUTCMonth","setUTCSeconds","setYear"]);e.prototype=Error.prototype;var L=C([]),M=C({});C.isImmutable=c,C.ImmutableError=e,Object.freeze(C),"object"==typeof module?module.exports=C:"object"==typeof exports?exports.Immutable=C:"object"==typeof window?window.Immutable=C:"object"==typeof global&&(global.Immutable=C)}();
\ No newline at end of file
+/* (c) 2016, Richard Feldman, github.com/rtfeldman/seamless-immutable/blob/master/LICENSE */!function(){"use strict";function a(a,b,c){Object.defineProperty(a,b,{enumerable:!1,configurable:!1,writable:!1,value:c})}function b(b){a(b,F,!0)}function c(a){return"object"==typeof a?null===a||Boolean(Object.getOwnPropertyDescriptor(a,F)):!0}function d(a){return!(null===a||"object"!=typeof a||a instanceof Array||a instanceof Date)}function e(a){var b=new Error(a);return b.__proto__=e,b}function f(a,c){b(a);return a}function g(b,c){var d=b[c];a(b,c,function(){return C(d.apply(b,arguments))})}function h(a,b){if(a in this&&this[a]===b)return this;var c=o.call(this);return c[a]=C(b),j(c)}function i(a,b){var c=a[0];if(1===a.length)return h.call(this,c,b);var d,e=a.slice(1),f=this[c];if(d="object"==typeof f&&null!==f&&"function"==typeof f.setIn?f.setIn(e,b):i.call(L,e,b),c in this&&f===d)return this;var g=o.call(this);return g[c]=d,j(g)}function j(b){for(var c in J)if(J.hasOwnProperty(c)){var d=J[c];g(b,d)}a(b,"flatMap",m),a(b,"asObject",p),a(b,"asMutable",o),a(b,"set",h),a(b,"setIn",i),a(b,"update",v),a(b,"updateIn",x);for(var e=0,j=b.length;j>e;e++)b[e]=C(b[e]);return f(b,I)}function k(b){return a(b,"asMutable",l),f(b,K)}function l(){return new Date(this.getTime())}function m(a){if(0===arguments.length)return this;var b,c=[],d=this.length;for(b=0;d>b;b++){var e=a(this[b],b,this);e instanceof Array?c.push.apply(c,e):c.push(e)}return j(c)}function n(a){if("undefined"==typeof a&&0===arguments.length)return this;if("function"!=typeof a){var b=a instanceof Array?a:Array.prototype.slice.call(arguments);a=function(a,c){return-1!==b.indexOf(c)}}var c=this.instantiateEmptyObject();for(var d in this)this.hasOwnProperty(d)&&a(this[d],d)===!1&&(c[d]=this[d]);return A(c,{instantiateEmptyObject:this.instantiateEmptyObject})}function o(a){var b,c,d=[];if(a&&a.deep)for(b=0,c=this.length;c>b;b++)d.push(q(this[b]));else for(b=0,c=this.length;c>b;b++)d.push(this[b]);return d}function p(a){"function"!=typeof a&&(a=function(a){return a});var b,c={},d=this.length;for(b=0;d>b;b++){var e=a(this[b],b,this),f=e[0],g=e[1];c[f]=g}return A(c)}function q(a){return!a||"object"!=typeof a||!Object.getOwnPropertyDescriptor(a,F)||a instanceof Date?a:a.asMutable({deep:!0})}function r(a,b){for(var c in a)Object.getOwnPropertyDescriptor(a,c)&&(b[c]=a[c]);return b}function s(a,b){function c(a,c,f){var g=C(c[f]),j=i&&i(a[f],g,b),k=a[f];if(void 0!==e||void 0!==j||!a.hasOwnProperty(f)||g!==k&&g===g){var l;l=j?j:h&&d(k)&&d(g)?k.merge(g,b):g,(k!==l&&l===l||!a.hasOwnProperty(f))&&(void 0===e&&(e=r(a,a.instantiateEmptyObject())),e[f]=l)}}if(0===arguments.length)return this;if(null===a||"object"!=typeof a)throw new TypeError("Immutable#merge can only be invoked with objects or arrays, not "+JSON.stringify(a));var e,f,g=a instanceof Array,h=b&&b.deep,i=b&&b.merger;if(g)for(var j=0;j<a.length;j++){var k=a[j];for(f in k)k.hasOwnProperty(f)&&c(this,k,f)}else for(f in a)Object.getOwnPropertyDescriptor(a,f)&&c(this,a,f);return void 0===e?this:A(e,{instantiateEmptyObject:this.instantiateEmptyObject})}function t(a,b){var c=a[0];if(1===a.length)return u.call(this,c,b);var d,e=a.slice(1),f=this[c];if(d=this.hasOwnProperty(c)&&"object"==typeof f&&null!==f&&"function"==typeof f.setIn?f.setIn(e,b):t.call(M,e,b),this.hasOwnProperty(c)&&f===d)return this;var g=r(this,this.instantiateEmptyObject());return g[c]=d,A(g,this)}function u(a,b){if(this.hasOwnProperty(a)&&this[a]===b)return this;var c=r(this,this.instantiateEmptyObject());return c[a]=C(b),A(c,this)}function v(a,b){var c=Array.prototype.slice.call(arguments,2),d=this[a];return this.set(a,b.apply(d,[d].concat(c)))}function w(a,b){for(var c=0,d=b.length;null!=a&&d>c;c++)a=a[b[c]];return c&&c==d?a:void 0}function x(a,b){var c=Array.prototype.slice.call(arguments,2),d=w(this,a);return this.setIn(a,b.apply(d,[d].concat(c)))}function y(a){var b,c=this.instantiateEmptyObject();if(a&&a.deep)for(b in this)this.hasOwnProperty(b)&&(c[b]=q(this[b]));else for(b in this)this.hasOwnProperty(b)&&(c[b]=this[b]);return c}function z(){return{}}function A(b,c){var d=c&&c.instantiateEmptyObject?c.instantiateEmptyObject:z;return a(b,"merge",s),a(b,"without",n),a(b,"asMutable",y),a(b,"instantiateEmptyObject",d),a(b,"set",u),a(b,"setIn",t),a(b,"update",v),a(b,"updateIn",x),f(b,G)}function B(a){return"object"==typeof a&&null!==a&&(a.$$typeof===E||a.$$typeof===D)}function C(a,b,d){if(c(a)||B(a))return a;if(a instanceof Array)return j(a.slice());if(a instanceof Date)return k(new Date(a.getTime()));var e=b&&b.prototype,f=e&&e!==Object.prototype?function(){return Object.create(e)}:z,g=f();for(var h in a)Object.getOwnPropertyDescriptor(a,h)&&(g[h]=C(a[h],void 0,d));return A(g,{instantiateEmptyObject:f})}var D="function"==typeof Symbol&&Symbol["for"]&&Symbol["for"]("react.element"),E=60103,F="__immutable_invariants_hold",G=["setPrototypeOf"],H=["keys"],I=G.concat(["push","pop","sort","splice","shift","unshift","reverse"]),J=H.concat(["map","filter","slice","concat","reduce","reduceRight"]),K=G.concat(["setDate","setFullYear","setHours","setMilliseconds","setMinutes","setMonth","setSeconds","setTime","setUTCDate","setUTCFullYear","setUTCHours","setUTCMilliseconds","setUTCMinutes","setUTCMonth","setUTCSeconds","setYear"]);e.prototype=Error.prototype;var L=C([]),M=C({});C.from=C,C.isImmutable=c,C.ImmutableError=e,Object.freeze(C),"object"==typeof module?module.exports=C:"object"==typeof exports?exports.Immutable=C:"object"==typeof window?window.Immutable=C:"object"==typeof global&&(global.Immutable=C)}();
\ No newline at end of file
diff --git a/src/seamless-immutable.js b/src/seamless-immutable.js
index df392c6..08e0a97 100644
--- a/src/seamless-immutable.js
+++ b/src/seamless-immutable.js
@@ -549,6 +549,7 @@
   }
 
   // Export the library
+  Immutable.from           = Immutable;
   Immutable.isImmutable    = isImmutable;
   Immutable.ImmutableError = ImmutableError;
 


Test patch:
diff --git a/test/Immutable.spec.js b/test/Immutable.spec.js
index a0e04ec..24151c3 100644
--- a/test/Immutable.spec.js
+++ b/test/Immutable.spec.js
@@ -15,6 +15,12 @@ var getTestUtils = require("./TestUtils.js");
 
   describe(config.name, function () {
     describe("Immutable", function () {
+      describe("#from", function() {
+        it("is a reference to Immutable", function() {
+          assert.equal(Immutable, Immutable.from);
+        });
+      });
+
       it("makes an Immutable for Object.create(null)", function () {
         var mutable = Object.create(null);
         var immutable = Immutable(mutable);