move(scope): appease the History God

-	renamed:    src/Scope.js -> src/service/scope.js
-	renamed:    test/ScopeSpec.js -> test/service/scopeSpec.js

1 files changed, 0 insertions, 679 deletions

diff --git a/src/Scope.js b/src/Scope.js
deleted file mode 100644
index c4b9513b..00000000
--- a/src/Scope.js
+++ /dev/null
@@ -1,679 +0,0 @@
-'use strict';
-
-/**
- * DESIGN NOTES
- *
- * The design decisions behind the scope ware heavily favored for speed and memory consumption.
- *
- * The typical use of scope is to watch the expressions, which most of the time return the same
- * value as last time so we optimize the operation.
- *
- * Closures construction is expensive from speed as well as memory:
- *   - no closures, instead ups prototypical inheritance for API
- *   - Internal state needs to be stored on scope directly, which means that private state is
- *     exposed as $$____ properties
- *
- * Loop operations are optimized by using while(count--) { ... }
- *   - this means that in order to keep the same order of execution as addition we have to add
- *     items to the array at the begging (shift) instead of at the end (push)
- *
- * Child scopes are created and removed often
- *   - Using array would be slow since inserts in meddle are expensive so we use linked list
- *
- * There are few watches then a lot of observers. This is why you don't want the observer to be
- * implemented in the same way as watch. Watch requires return of initialization function which
- * are expensive to construct.
- */
-
-
-function createScope(providers, instanceCache) {
-  var scope = new Scope();
-  (scope.$service = createInjector(scope, providers, instanceCache)).eager();
-  return scope;
-}
-
-
-/**
- * @ngdoc function
- * @name angular.scope
- *
- * @description
- * A root scope can be created by calling {@link angular.scope angular.scope()}. Child scopes
- * are created using the {@link angular.scope.$new $new()} method.
- * (Most scopes are created automatically when compiled HTML template is executed.)
- *
- * Here is a simple scope snippet to show how you can interact with the scope.
- * <pre>
-       var scope = angular.scope();
-       scope.salutation = 'Hello';
-       scope.name = 'World';
-
-       expect(scope.greeting).toEqual(undefined);
-
-       scope.$watch('name', function() {
-         this.greeting = this.salutation + ' ' + this.name + '!';
-       }); // initialize the watch
-
-       expect(scope.greeting).toEqual(undefined);
-       scope.name = 'Misko';
-       // still old value, since watches have not been called yet
-       expect(scope.greeting).toEqual(undefined);
-
-       scope.$digest(); // fire all  the watches
-       expect(scope.greeting).toEqual('Hello Misko!');
- * </pre>
- *
- * # Inheritance
- * A scope can inherit from a parent scope, as in this example:
- * <pre>
-     var parent = angular.scope();
-     var child = parent.$new();
-
-     parent.salutation = "Hello";
-     child.name = "World";
-     expect(child.salutation).toEqual('Hello');
-
-     child.salutation = "Welcome";
-     expect(child.salutation).toEqual('Welcome');
-     expect(parent.salutation).toEqual('Hello');
- * </pre>
- *
- * # Dependency Injection
- * See {@link guide/dev_guide.di dependency injection}.
- *
- *
- * @param {Object.<string, function()>=} providers Map of service factory which need to be provided
- *     for the current scope. Defaults to {@link angular.service}.
- * @param {Object.<string, *>=} instanceCache Provides pre-instantiated services which should
- *     append/override services provided by `providers`. This is handy when unit-testing and having
- *     the need to override a default service.
- * @returns {Object} Newly created scope.
- *
- */
-function Scope() {
-  this.$id = nextUid();
-  this.$$phase = this.$parent = this.$$watchers =
-                 this.$$nextSibling = this.$$prevSibling =
-                 this.$$childHead = this.$$childTail = null;
-  this.$destructor = noop;
-  this['this'] = this.$root =  this;
-  this.$$asyncQueue = [];
-  this.$$listeners = {};
-}
-
-/**
- * @ngdoc property
- * @name angular.scope.$id
- * @returns {number} Unique scope ID (monotonically increasing alphanumeric sequence) useful for
- *   debugging.
- */
-
-/**
- * @ngdoc property
- * @name angular.scope.$service
- * @function
- *
- * @description
- * Provides reference to an instance of {@link angular.injector injector} which can be used to
- * retrieve {@link angular.service services}. In general the use of this api is discouraged,
- * in favor of proper {@link guide/dev_guide.di dependency injection}.
- *
- * @returns {function} {@link angular.injector injector}
- */
-
-/**
- * @ngdoc property
- * @name angular.scope.$root
- * @returns {Scope} The root scope of the current scope hierarchy.
- */
-
-/**
- * @ngdoc property
- * @name angular.scope.$parent
- * @returns {Scope} The parent scope of the current scope.
- */
-
-
-Scope.prototype = {
-  /**
-   * @ngdoc function
-   * @name angular.scope.$new
-   * @function
-   *
-   * @description
-   * Creates a new child {@link angular.scope scope}. The new scope can optionally behave as a
-   * controller. The parent scope will propagate the {@link angular.scope.$digest $digest()} and
-   * {@link angular.scope.$digest $digest()} events. The scope can be removed from the scope
-   * hierarchy using {@link angular.scope.$destroy $destroy()}.
-   *
-   * {@link angular.scope.$destroy $destroy()} must be called on a scope when it is desired for
-   * the scope and its child scopes to be permanently detached from the parent and thus stop
-   * participating in model change detection and listener notification by invoking.
-   *
-   * @param {function()=} Class Constructor function which the scope should be applied to the scope.
-   * @param {...*} curryArguments Any additional arguments which are curried into the constructor.
-   *        See {@link guide/dev_guide.di dependency injection}.
-   * @returns {Object} The newly created child scope.
-   *
-   */
-  $new: function(Class, curryArguments) {
-    var Child = function() {}; // should be anonymous; This is so that when the minifier munges
-      // the name it does not become random set of chars. These will then show up as class
-      // name in the debugger.
-    var child;
-    Child.prototype = this;
-    child = new Child();
-    child['this'] = child;
-    child.$$listeners = {};
-    child.$parent = this;
-    child.$id = nextUid();
-    child.$$asyncQueue = [];
-    child.$$phase = child.$$watchers =
-      child.$$nextSibling = child.$$childHead = child.$$childTail = null;
-    child.$$prevSibling = this.$$childTail;
-    if (this.$$childHead) {
-      this.$$childTail.$$nextSibling = child;
-      this.$$childTail = child;
-    } else {
-      this.$$childHead = this.$$childTail = child;
-    }
-    // short circuit if we have no class
-    if (Class) {
-      // can't use forEach, we need speed!
-      var ClassPrototype = Class.prototype;
-      for(var key in ClassPrototype) {
-        child[key] = bind(child, ClassPrototype[key]);
-      }
-      this.$service.invoke(child, Class, curryArguments);
-    }
-    return child;
-  },
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$watch
-   * @function
-   *
-   * @description
-   * Registers a `listener` callback to be executed whenever the `watchExpression` changes.
-   *
-   * - The `watchExpression` is called on every call to {@link angular.scope.$digest $digest()} and
-   *   should return the value which will be watched. (Since {@link angular.scope.$digest $digest()}
-   *   reruns when it detects changes the `watchExpression` can execute multiple times per
-   *   {@link angular.scope.$digest $digest()} and should be idempotent.)
-   * - The `listener` is called only when the value from the current `watchExpression` and the
-   *   previous call to `watchExpression' are not equal. The inequality is determined according to
-   *   {@link angular.equals} function. To save the value of the object for later comparison
-   *   {@link angular.copy} function is used. It also means that watching complex options will
-   *   have adverse memory and performance implications.
-   * - The watch `listener` may change the model, which may trigger other `listener`s to fire. This
-   *   is achieved by rerunning the watchers until no changes are detected. The rerun iteration
-   *   limit is 100 to prevent infinity loop deadlock.
-   *
-   *
-   * If you want to be notified whenever {@link angular.scope.$digest $digest} is called,
-   * you can register an `watchExpression` function with no `listener`. (Since `watchExpression`,
-   * can execute multiple times per {@link angular.scope.$digest $digest} cycle when a change is
-   * detected, be prepared for multiple calls to your listener.)
-   *
-   *
-   * # Example
-     <pre>
-       var scope = angular.scope();
-       scope.name = 'misko';
-       scope.counter = 0;
-
-       expect(scope.counter).toEqual(0);
-       scope.$watch('name', function(scope, newValue, oldValue) { counter = counter + 1; });
-       expect(scope.counter).toEqual(0);
-
-       scope.$digest();
-       // no variable change
-       expect(scope.counter).toEqual(0);
-
-       scope.name = 'adam';
-       scope.$digest();
-       expect(scope.counter).toEqual(1);
-     </pre>
-   *
-   *
-   *
-   * @param {(function()|string)} watchExpression Expression that is evaluated on each
-   *    {@link angular.scope.$digest $digest} cycle. A change in the return value triggers a
-   *    call to the `listener`.
-   *
-   *    - `string`: Evaluated as {@link guide/dev_guide.expressions expression}
-   *    - `function(scope)`: called with current `scope` as a parameter.
-   * @param {(function()|string)=} listener Callback called whenever the return value of
-   *   the `watchExpression` changes.
-   *
-   *    - `string`: Evaluated as {@link guide/dev_guide.expressions expression}
-   *    - `function(scope, newValue, oldValue)`: called with current `scope` an previous and
-   *       current values as parameters.
-   * @returns {function()} Returns a deregistration function for this listener.
-   */
-  $watch: function(watchExp, listener) {
-    var scope = this,
-        get = compileToFn(watchExp, 'watch'),
-        listenFn = compileToFn(listener || noop, 'listener'),
-        array = scope.$$watchers,
-        watcher = {
-          fn: listenFn,
-          last: Number.NaN, // NaN !== NaN. We used this to force $watch to fire on first run.
-          get: get,
-          exp: watchExp
-        };
-
-    if (!array) {
-      array = scope.$$watchers = [];
-    }
-    // we use unshift since we use a while loop in $digest for speed.
-    // the while loop reads in reverse order.
-    array.unshift(watcher);
-
-    return function() {
-      angularArray.remove(array, watcher);
-    };
-  },
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$digest
-   * @function
-   *
-   * @description
-   * Process all of the {@link angular.scope.$watch watchers} of the current scope and its children.
-   * Because a {@link angular.scope.$watch watcher}'s listener can change the model, the
-   * `$digest()` keeps calling the {@link angular.scope.$watch watchers} until no more listeners are
-   * firing. This means that it is possible to get into an infinite loop. This function will throw
-   * `'Maximum iteration limit exceeded.'` if the number of iterations exceeds 100.
-   *
-   * Usually you don't call `$digest()` directly in
-   * {@link angular.directive.ng:controller controllers} or in {@link angular.directive directives}.
-   * Instead a call to {@link angular.scope.$apply $apply()} (typically from within a
-   * {@link angular.directive directive}) will force a `$digest()`.
-   *
-   * If you want to be notified whenever `$digest()` is called,
-   * you can register a `watchExpression` function  with {@link angular.scope.$watch $watch()}
-   * with no `listener`.
-   *
-   * You may have a need to call `$digest()` from within unit-tests, to simulate the scope
-   * life-cycle.
-   *
-   * # Example
-     <pre>
-       var scope = angular.scope();
-       scope.name = 'misko';
-       scope.counter = 0;
-
-       expect(scope.counter).toEqual(0);
-       scope.$digest('name', function(scope, newValue, oldValue) { counter = counter + 1; });
-       expect(scope.counter).toEqual(0);
-
-       scope.$digest();
-       // no variable change
-       expect(scope.counter).toEqual(0);
-
-       scope.name = 'adam';
-       scope.$digest();
-       expect(scope.counter).toEqual(1);
-     </pre>
-   *
-   */
-  $digest: function() {
-    var watch, value, last,
-        watchers,
-        asyncQueue,
-        length,
-        dirty, ttl = 100,
-        next, current, target = this,
-        watchLog = [];
-
-    if (target.$$phase) {
-      throw Error(target.$$phase + ' already in progress');
-    }
-    do {
-
-      dirty = false;
-      current = target;
-      do {
-        current.$$phase = '$digest';
-        asyncQueue = current.$$asyncQueue;
-        while(asyncQueue.length) {
-          try {
-            current.$eval(asyncQueue.shift());
-          } catch (e) {
-            current.$service('$exceptionHandler')(e);
-          }
-        }
-        if ((watchers = current.$$watchers)) {
-          // process our watches
-          length = watchers.length;
-          while (length--) {
-            try {
-              watch = watchers[length];
-              // Most common watches are on primitives, in which case we can short
-              // circuit it with === operator, only when === fails do we use .equals
-              if ((value = watch.get(current)) !== (last = watch.last) && !equals(value, last)) {
-                dirty = true;
-                watch.last = copy(value);
-                watch.fn(current, value, last);
-                if (ttl < 5) {
-                  if (!watchLog[4-ttl]) watchLog[4-ttl] = [];
-                  if (isFunction(watch.exp)) {
-                    watchLog[4-ttl].push('fn: ' + (watch.exp.name || watch.exp.toString()));
-                  } else {
-                    watchLog[4-ttl].push(watch.exp);
-                  }
-                }
-              }
-            } catch (e) {
-              current.$service('$exceptionHandler')(e);
-            }
-          }
-        }
-
-        current.$$phase = null;
-
-        // Insanity Warning: scope depth-first traversal
-        // yes, this code is a bit crazy, but it works and we have tests to prove it!
-        // this piece should be kept in sync with the traversal in $broadcast
-        if (!(next = (current.$$childHead || (current !== target && current.$$nextSibling)))) {
-          while(current !== target && !(next = current.$$nextSibling)) {
-            current = current.$parent;
-          }
-        }
-      } while ((current = next));
-
-      if(!(ttl--)) {
-        throw Error('100 $digest() iterations reached. Aborting!\n' +
-            'Watchers fired in the last 5 iterations: ' + toJson(watchLog));
-      }
-    } while (dirty);
-  },
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$destroy
-   * @function
-   *
-   * @description
-   * Remove the current scope (and all of its children) from the parent scope. Removal implies
-   * that calls to {@link angular.scope.$digest $digest()} will no longer propagate to the current
-   * scope and its children. Removal also implies that the current scope is eligible for garbage
-   * collection.
-   *
-   * The destructing scope emits an `$destroy` {@link angular.scope.$emit event}.
-   *
-   * The `$destroy()` is usually used by directives such as
-   * {@link angular.widget.@ng:repeat ng:repeat} for managing the unrolling of the loop.
-   *
-   */
-  $destroy: function() {
-    if (this.$root == this) return; // we can't remove the root node;
-    this.$emit('$destroy');
-    var parent = this.$parent;
-
-    if (parent.$$childHead == this) parent.$$childHead = this.$$nextSibling;
-    if (parent.$$childTail == this) parent.$$childTail = this.$$prevSibling;
-    if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling;
-    if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling;
-  },
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$eval
-   * @function
-   *
-   * @description
-   * Executes the `expression` on the current scope returning the result. Any exceptions in the
-   * expression are propagated (uncaught). This is useful when evaluating engular expressions.
-   *
-   * # Example
-     <pre>
-       var scope = angular.scope();
-       scope.a = 1;
-       scope.b = 2;
-
-       expect(scope.$eval('a+b')).toEqual(3);
-       expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3);
-     </pre>
-   *
-   * @param {(string|function())=} expression An angular expression to be executed.
-   *
-   *    - `string`: execute using the rules as defined in  {@link guide/dev_guide.expressions expression}.
-   *    - `function(scope)`: execute the function with the current `scope` parameter.
-   *
-   * @returns {*} The result of evaluating the expression.
-   */
-  $eval: function(expr) {
-    var fn = isString(expr)
-      ? expressionCompile(expr)
-      : expr || noop;
-    return fn(this);
-  },
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$evalAsync
-   * @function
-   *
-   * @description
-   * Executes the expression on the current scope at a later point in time.
-   *
-   * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only that:
-   *
-   *   - it will execute in the current script execution context (before any DOM rendering).
-   *   - at least one {@link angular.scope.$digest $digest cycle} will be performed after
-   *     `expression` execution.
-   *
-   * Any exceptions from the execution of the expression are forwarded to the
-   * {@link angular.service.$exceptionHandler $exceptionHandler} service.
-   *
-   * @param {(string|function())=} expression An angular expression to be executed.
-   *
-   *    - `string`: execute using the rules as defined in  {@link guide/dev_guide.expressions expression}.
-   *    - `function(scope)`: execute the function with the current `scope` parameter.
-   *
-   */
-  $evalAsync: function(expr) {
-    this.$$asyncQueue.push(expr);
-  },
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$apply
-   * @function
-   *
-   * @description
-   * `$apply()` is used to execute an expression in angular from outside of the angular framework.
-   * (For example from browser DOM events, setTimeout, XHR or third party libraries).
-   * Because we are calling into the angular framework we need to perform proper scope life-cycle
-   * of {@link angular.service.$exceptionHandler exception handling},
-   * {@link angular.scope.$digest executing watches}.
-   *
-   * ## Life cycle
-   *
-   * # Pseudo-Code of `$apply()`
-      function $apply(expr) {
-        try {
-          return $eval(expr);
-        } catch (e) {
-          $exceptionHandler(e);
-        } finally {
-          $root.$digest();
-        }
-      }
-   *
-   *
-   * Scope's `$apply()` method transitions through the following stages:
-   *
-   * 1. The {@link guide/dev_guide.expressions expression} is executed using the
-   *    {@link angular.scope.$eval $eval()} method.
-   * 2. Any exceptions from the execution of the expression are forwarded to the
-   *    {@link angular.service.$exceptionHandler $exceptionHandler} service.
-   * 3. The {@link angular.scope.$watch watch} listeners are fired immediately after the expression
-   *    was executed using the {@link angular.scope.$digest $digest()} method.
-   *
-   *
-   * @param {(string|function())=} exp An angular expression to be executed.
-   *
-   *    - `string`: execute using the rules as defined in {@link guide/dev_guide.expressions expression}.
-   *    - `function(scope)`: execute the function with current `scope` parameter.
-   *
-   * @returns {*} The result of evaluating the expression.
-   */
-  $apply: function(expr) {
-    try {
-      return this.$eval(expr);
-    } catch (e) {
-      this.$service('$exceptionHandler')(e);
-    } finally {
-      this.$root.$digest();
-    }
-  },
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$on
-   * @function
-   *
-   * @description
-   * Listen on events of a given type. See {@link angular.scope.$emit $emit} for discussion of
-   * event life cycle.
-   *
-   * @param {string} name Event name to listen on.
-   * @param {function(event)} listener Function to call when the event is emitted.
-   * @returns {function()} Returns a deregistration function for this listener.
-   *
-   * The event listener function format is: `function(event)`. The `event` object passed into the
-   * listener has the following attributes
-   *   - `targetScope` - {Scope}: the scope on which the event was `$emit`-ed or `$broadcast`-ed.
-   *   - `currentScope` - {Scope}: the current scope which is handling the event.
-   *   - `name` - {string}: Name of the event.
-   *   - `cancel` - {function=}: calling `cancel` function will cancel further event propagation
-   *     (available only for events that were `$emit`-ed).
-   */
-  $on: function(name, listener) {
-    var namedListeners = this.$$listeners[name];
-    if (!namedListeners) {
-      this.$$listeners[name] = namedListeners = [];
-    }
-    namedListeners.push(listener);
-
-    return function() {
-      angularArray.remove(namedListeners, listener);
-    };
-  },
-
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$emit
-   * @function
-   *
-   * @description
-   * Dispatches an event `name` upwards through the scope hierarchy notifying the
-   * registered {@link angular.scope.$on} listeners.
-   *
-   * The event life cycle starts at the scope on which `$emit` was called. All
-   * {@link angular.scope.$on listeners} listening for `name` event on this scope get notified.
-   * Afterwards, the event traverses upwards toward the root scope and calls all registered
-   * listeners along the way. The event will stop propagating if one of the listeners cancels it.
-   *
-   * Any exception emmited from the {@link angular.scope.$on listeners} will be passed
-   * onto the {@link angular.service.$exceptionHandler $exceptionHandler} service.
-   *
-   * @param {string} name Event name to emit.
-   * @param {...*} args Optional set of arguments which will be passed onto the event listeners.
-   */
-  $emit: function(name, args) {
-    var empty = [],
-        namedListeners,
-        canceled = false,
-        scope = this,
-        event = {
-          name: name,
-          targetScope: scope,
-          cancel: function() {canceled = true;}
-        },
-        listenerArgs = concat([event], arguments, 1),
-        i, length;
-
-    do {
-      namedListeners = scope.$$listeners[name] || empty;
-      event.currentScope = scope;
-      for (i=0, length=namedListeners.length; i<length; i++) {
-        try {
-          namedListeners[i].apply(null, listenerArgs);
-          if (canceled) return;
-        } catch (e) {
-          scope.$service('$exceptionHandler')(e);
-        }
-      }
-      //traverse upwards
-      scope = scope.$parent;
-    } while (scope);
-  },
-
-
-  /**
-   * @ngdoc function
-   * @name angular.scope.$broadcast
-   * @function
-   *
-   * @description
-   * Dispatches an event `name` downwards to all child scopes (and their children) notifying the
-   * registered {@link angular.scope.$on} listeners.
-   *
-   * The event life cycle starts at the scope on which `$broadcast` was called. All
-   * {@link angular.scope.$on listeners} listening for `name` event on this scope get notified.
-   * Afterwards, the event propagates to all direct and indirect scopes of the current scope and
-   * calls all registered listeners along the way. The event cannot be canceled.
-   *
-   * Any exception emmited from the {@link angular.scope.$on listeners} will be passed
-   * onto the {@link angular.service.$exceptionHandler $exceptionHandler} service.
-   *
-   * @param {string} name Event name to emit.
-   * @param {...*} args Optional set of arguments which will be passed onto the event listeners.
-   */
-  $broadcast: function(name, args) {
-    var target = this,
-        current = target,
-        next = target,
-        event = { name: name,
-                  targetScope: target },
-        listenerArgs = concat([event], arguments, 1);
-
-    //down while you can, then up and next sibling or up and next sibling until back at root
-    do {
-      current = next;
-      event.currentScope = current;
-      forEach(current.$$listeners[name], function(listener) {
-        try {
-          listener.apply(null, listenerArgs);
-        } catch(e) {
-          current.$service('$exceptionHandler')(e);
-        }
-      });
-
-      // Insanity Warning: scope depth-first traversal
-      // yes, this code is a bit crazy, but it works and we have tests to prove it!
-      // this piece should be kept in sync with the traversal in $digest
-      if (!(next = (current.$$childHead || (current !== target && current.$$nextSibling)))) {
-        while(current !== target && !(next = current.$$nextSibling)) {
-          current = current.$parent;
-        }
-      }
-    } while ((current = next));
-  }
-};
-
-
-function compileToFn(exp, name) {
-  var fn = isString(exp)
-    ? expressionCompile(exp)
-    : exp;
-  assertArgFn(fn, name);
-  return fn;
-}