refactor: remove AbstractResume base class

(1) AbstractResume adds complexity without contributing utility. There's not
really a clean "class" abstraction in JavaScript to begin with; CoffeeScript
classes, as nice as they are syntactically, occlude the issue even further.

(2) AbstractResume currently functions as a container for exactly two functions
which arguably should live outside the resume class anyway.

src/core/abstract-resume.coffee

@@ -1,98 +0,0 @@
-###*
-Definition of the AbstractResume class.
-@license MIT. See LICENSE.md for details.
-@module core/abstract-resume
-###
-
-_ = require 'underscore'
-__ = require 'lodash'
-FluentDate = require('./fluent-date')
-
-class AbstractResume
-
-  ###*
-  Compute the total duration of the work history.
-  @returns The total duration of the sheet's work history, that is, the number
-  of years between the start date of the earliest job on the resume and the
-  *latest end date of all jobs in the work history*. This last condition is for
-  sheets that have overlapping jobs.
-  ###
-  duration: (collKey, startKey, endKey, unit) ->
-    unit = unit || 'years'
-    hist = __.get @, collKey
-    return 0 if !hist or !hist.length
-
-    # BEGIN CODE DUPLICATION --> src/inspectors/gap-inspector.coffee (TODO)
-
-    # Convert the candidate's employment history to an array of dates,
-    # where each element in the array is a start date or an end date of a
-    # job -- it doesn't matter which.
-    new_e = hist.map ( job ) ->
-      obj = _.pick( job, [startKey, endKey] )
-      # Synthesize an end date if this is a "current" gig
-      obj[endKey] = 'current' if !_.has obj, endKey
-      if obj && (obj[startKey] || obj[endKey])
-        obj = _.pairs obj
-        obj[0][1] = FluentDate.fmt( obj[0][1] )
-        if obj.length > 1
-          obj[1][1] = FluentDate.fmt( obj[1][1] )
-      obj
-
-    # Flatten the array, remove empties, and sort
-    new_e = _.filter _.flatten( new_e, true ), (v) ->
-      return v && v.length && v[0] && v[0].length
-    return 0 if !new_e or !new_e.length
-    new_e = _.sortBy new_e, ( elem ) -> return elem[1].unix()
-
-    # END CODE DUPLICATION
-
-    firstDate = _.first( new_e )[1];
-    lastDate = _.last( new_e )[1];
-    lastDate.diff firstDate, unit
-
-  ###*
-  Removes ignored or private fields from a resume object
-  @returns an object with the following structure:
-  {
-    scrubbed: the processed resume object
-    ignoreList: an array of ignored nodes that were removed
-    privateList: an array of private nodes that were removed
-  }
-  ###
-  scrubResume: (rep, opts) ->
-    traverse = require 'traverse'
-    ignoreList = []
-    privateList = []
-    includePrivates = opts && opts.private
-
-    scrubbed = traverse( rep ).map () -> # [^1]
-      if !@isLeaf
-        if @node.ignore == true || @node.ignore == 'true'
-          ignoreList.push @node
-          @delete()
-        else if (@node.private == true || @node.private == 'true') && !includePrivates
-          privateList.push @node
-          @delete()
-      if _.isArray(@node) # [^2]
-        @after () ->
-          @update _.compact this.node
-          return
-      return
-
-    scrubbed: scrubbed
-    ingoreList: ignoreList
-    privateList: privateList
-
-module.exports = AbstractResume
-
-
-# [^1]: As of v0.6.6, the NPM traverse library has a quirk when attempting
-# to remove array elements directly using traverse's `this.remove`. See:
-#
-# https://github.com/substack/js-traverse/issues/48
-#
-# [^2]: The workaround is to use traverse's 'this.delete' to nullify the value
-# first, followed by removal with something like _.compact.
-#
-# https://github.com/substack/js-traverse/issues/48#issuecomment-142607200
-#

src/core/fresh-resume.coffee

@@ -18,7 +18,6 @@ MD = require 'marked'
 CONVERTER = require 'fresh-jrs-converter'
 JRSResume = require './jrs-resume'
 FluentDate = require './fluent-date'
-AbstractResume = require './abstract-resume'
 
 
 
@@ -27,7 +26,7 @@ A FRESH resume or CV. FRESH resumes are backed by JSON, and each FreshResume
 object is an instantiation of that JSON decorated with utility methods.
 @constructor
 ###
-class FreshResume extends AbstractResume
+class FreshResume# extends AbstractResume
 
 
 
@@ -55,7 +54,8 @@ class FreshResume extends AbstractResume
 
     if opts and opts.privatize
       # Ignore any element with the 'ignore: true' or 'private: true' designator.
-      { scrubbed, ignoreList, privateList } = @scrubResume rep, opts
+      scrubber = require '../utils/resume-scrubber'
+      { scrubbed, ignoreList, privateList } = scrubber.scrubResume rep, opts
 
     # Now apply the resume representation onto this object
     extend true, @, if opts and opts.privatize then scrubbed else rep
@@ -299,7 +299,9 @@ class FreshResume extends AbstractResume
 
 
   duration: (unit) ->
-    super('employment.history', 'start', 'end', unit)
+    inspector = require '../inspectors/duration-inspector'
+    inspector.run @, 'employment.history', 'start', 'end', unit
+
 
 
 

src/core/jrs-resume.coffee

@@ -14,7 +14,6 @@ PATH = require('path')
 MD = require('marked')
 CONVERTER = require('fresh-jrs-converter')
 moment = require('moment')
-AbstractResume = require('./abstract-resume')
 
 
 ###*
@@ -22,7 +21,7 @@ A JRS resume or CV. JRS resumes are backed by JSON, and each JRSResume object
 is an instantiation of that JSON decorated with utility methods.
 @class JRSResume
 ###
-class JRSResume extends AbstractResume
+class JRSResume# extends AbstractResume
 
 
 
@@ -49,8 +48,9 @@ class JRSResume extends AbstractResume
   parseJSON: ( rep, opts ) ->
     opts = opts || { };
     if opts.privatize
+      scrubber = require '../utils/resume-scrubber'
       # Ignore any element with the 'ignore: true' or 'private: true' designator.
-      { scrubbed, ignoreList, privateList } = @scrubResume rep, opts
+      { scrubbed, ignoreList, privateList } = scrubber.scrubResume rep, opts
 
     # Extend resume properties onto ourself.
     extend true, this, if opts.privatize then scrubbed else rep
@@ -188,7 +188,8 @@ class JRSResume extends AbstractResume
 
 
   duration: (unit) ->
-    super('work', 'startDate', 'endDate', unit)
+    inspector = require '../inspectors/duration-inspector';
+    inspector.run @, 'work', 'startDate', 'endDate', unit
 
 
 

src/inspectors/duration-inspector.coffee

@@ -0,0 +1,44 @@
+FluentDate = require '../core/fluent-date'
+_ = require 'underscore'
+
+module.exports =
+
+  ###*
+  Compute the total duration of the work history.
+  @returns The total duration of the sheet's work history, that is, the number
+  of years between the start date of the earliest job on the resume and the
+  *latest end date of all jobs in the work history*. This last condition is for
+  sheets that have overlapping jobs.
+  ###
+  run: (rez, collKey, startKey, endKey, unit) ->
+    unit = unit || 'years'
+    hist = __.get rez, collKey
+    return 0 if !hist or !hist.length
+
+    # BEGIN CODE DUPLICATION --> src/inspectors/gap-inspector.coffee (TODO)
+
+    # Convert the candidate's employment history to an array of dates,
+    # where each element in the array is a start date or an end date of a
+    # job -- it doesn't matter which.
+    new_e = hist.map ( job ) ->
+      obj = _.pick( job, [startKey, endKey] )
+      # Synthesize an end date if this is a "current" gig
+      obj[endKey] = 'current' if !_.has obj, endKey
+      if obj && (obj[startKey] || obj[endKey])
+        obj = _.pairs obj
+        obj[0][1] = FluentDate.fmt( obj[0][1] )
+        if obj.length > 1
+          obj[1][1] = FluentDate.fmt( obj[1][1] )
+      obj
+
+    # Flatten the array, remove empties, and sort
+    new_e = _.filter _.flatten( new_e, true ), (v) ->
+      return v && v.length && v[0] && v[0].length
+    return 0 if !new_e or !new_e.length
+    new_e = _.sortBy new_e, ( elem ) -> return elem[1].unix()
+
+    # END CODE DUPLICATION
+
+    firstDate = _.first( new_e )[1];
+    lastDate = _.last( new_e )[1];
+    lastDate.diff firstDate, unit

src/utils/resume-scrubber.coffee

@@ -0,0 +1,47 @@
+module.exports =
+
+  ###*
+  Removes ignored or private fields from a resume object
+  @returns an object with the following structure:
+  {
+    scrubbed: the processed resume object
+    ignoreList: an array of ignored nodes that were removed
+    privateList: an array of private nodes that were removed
+  }
+  ###
+  scrubResume: (rep, opts) ->
+    traverse = require 'traverse'
+    ignoreList = []
+    privateList = []
+    includePrivates = opts && opts.private
+
+    scrubbed = traverse( rep ).map () -> # [^1]
+      if !@isLeaf
+        if @node.ignore == true || @node.ignore == 'true'
+          ignoreList.push @node
+          @delete()
+        else if (@node.private == true || @node.private == 'true') && !includePrivates
+          privateList.push @node
+          @delete()
+      if _.isArray(@node) # [^2]
+        @after () ->
+          @update _.compact this.node
+          return
+      return
+
+    scrubbed: scrubbed
+    ingoreList: ignoreList
+    privateList: privateList
+
+
+
+# [^1]: As of v0.6.6, the NPM traverse library has a quirk when attempting
+# to remove array elements directly using traverse's `this.remove`. See:
+#
+# https://github.com/substack/js-traverse/issues/48
+#
+# [^2]: The workaround is to use traverse's 'this.delete' to nullify the value
+# first, followed by removal with something like _.compact.
+#
+# https://github.com/substack/js-traverse/issues/48#issuecomment-142607200
+#