add BigNumber Support for function diffString()

lib/colorize.coffee

@@ -1,4 +1,5 @@
 color = require 'cli-color'
+JSONbig = require 'true-json-bigint'
 
 { extendedTypeOf } = require './util'
 
@@ -8,24 +9,23 @@ Theme =
   '-': color.red
 
 
-subcolorizeToCallback = (key, diff, output, color, indent) ->
+subcolorizeToCallback = (key, diff, output, color, indent, options) ->
   prefix    = if key then "#{key}: " else ''
   subindent = indent + '  '
-
-  switch extendedTypeOf(diff)
+  switch extendedTypeOf(diff, options.bigNumberSupport)
     when 'object'
       if ('__old' of diff) and ('__new' of diff) and (Object.keys(diff).length is 2)
-        subcolorizeToCallback(key, diff.__old, output, '-', indent)
-        subcolorizeToCallback(key, diff.__new, output, '+', indent)
+        subcolorizeToCallback(key, diff.__old, output, '-', indent, options)
+        subcolorizeToCallback(key, diff.__new, output, '+', indent, options)
       else
         output color, "#{indent}#{prefix}{"
         for own subkey, subvalue of diff
           if m = subkey.match /^(.*)__deleted$/
-            subcolorizeToCallback(m[1], subvalue, output, '-', subindent)
+            subcolorizeToCallback(m[1], subvalue, output, '-', subindent, options)
           else if m = subkey.match /^(.*)__added$/
-            subcolorizeToCallback(m[1], subvalue, output, '+', subindent)
+            subcolorizeToCallback(m[1], subvalue, output, '+', subindent, options)
           else
-            subcolorizeToCallback(subkey, subvalue, output, color, subindent)
+            subcolorizeToCallback(subkey, subvalue, output, color, subindent, options)
         output color, "#{indent}}"
 
     when 'array'
@@ -42,34 +42,34 @@ subcolorizeToCallback = (key, diff, output, color, indent) ->
             output(' ', subindent + '...')
           else
             unless op in [' ', '~', '+', '-']
-              throw new Error("Unexpected op '#{op}' in #{JSON.stringify(diff, null, 2)}")
+              throw new Error("Unexpected op '#{op}' in #{JSONbig.stringify(diff, null, 2)}")
             op = ' ' if op is '~'
-            subcolorizeToCallback('', subvalue, output, op, subindent)
+            subcolorizeToCallback('', subvalue, output, op, subindent, options)
       else
         for subvalue in diff
-          subcolorizeToCallback('', subvalue, output, color, subindent)
+          subcolorizeToCallback('', subvalue, output, color, subindent, options)
 
       output color, "#{indent}]"
 
     else
       if diff == 0 or diff
-        output(color, indent + prefix + JSON.stringify(diff))
+        output(color, indent + prefix + JSONbig.stringify(diff))
 
 
 
-colorizeToCallback = (diff, output) ->
-  subcolorizeToCallback('', diff, output, ' ', '')
+colorizeToCallback = (diff, options, output) ->
+  subcolorizeToCallback('', diff, output, ' ', '', options)
 
 
-colorizeToArray = (diff) ->
+colorizeToArray = (diff, options = {}) ->
   output = []
-  colorizeToCallback(diff, (color, line) -> output.push "#{color}#{line}")
+  colorizeToCallback(diff, options, (color, line) -> output.push "#{color}#{line}")
   return output
 
 
 colorize = (diff, options={}) ->
   output = []
-  colorizeToCallback diff, (color, line) ->
+  colorizeToCallback diff, options, (color, line) ->
     if options.color ? yes
       output.push (options.theme?[color] ? Theme[color])("#{color}#{line}") + "\n"
     else

lib/index.coffee

@@ -146,8 +146,8 @@ arrayDiff = (obj1, obj2, options = {}) ->
 
 
 diffWithScore = (obj1, obj2, options = {}) ->
-  type1 = extendedTypeOf obj1
-  type2 = extendedTypeOf obj2
+  type1 = extendedTypeOf(obj1, options.bigNumberSupport)
+  type2 = extendedTypeOf(obj2, options.bigNumberSupport)
 
   if type1 == type2
     switch type1
@@ -173,6 +173,8 @@ diffScore = (obj1, obj2, options = {}) ->
   return score
 
 diffString = (obj1, obj2, colorizeOptions, diffOptions = {}) ->
+  if colorizeOptions != undefined and colorizeOptions.bigNumberSupport
+    diffOptions.bigNumberSupport = true
   return colorize(diff(obj1, obj2, diffOptions), colorizeOptions)
 
 

lib/util.coffee

@@ -1,10 +1,13 @@
+BigNumber = require 'bignumber.js'
 
-extendedTypeOf = (obj) ->
+extendedTypeOf = (obj, bigNumberSupport = false) ->
   result = typeof obj
   if !obj?
     'null'
   else if result is 'object' and obj.constructor is Array
     'array'
+  else if bigNumberSupport and BigNumber.isBigNumber(obj)
+    'number'
   else
     result
 

package.json

@@ -20,7 +20,8 @@
   "dependencies": {
     "cli-color": "~0.1.6",
     "difflib": "~0.2.1",
-    "dreamopt": "~0.6.0"
+    "dreamopt": "~0.6.0",
+    "true-json-bigint": "^0.4.4"
   },
   "devDependencies": {
     "coffee-script": "^1.12.7",

yarn.lock

@@ -2,6 +2,11 @@
 # yarn lockfile v1
 
 
+bignumber.js@^7.0.0:
+  version "7.2.1"
+  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-7.2.1.tgz#80c048759d826800807c4bfd521e50edbba57a5f"
+  integrity sha512-S4XzBk5sMB+Rcb/LNcpzXr57VRTxgAvaAEDAl1AwRx27j00hT84O6OkteE7u8UB3NuaaygCRrEpqox4uDOrbdQ==
+
 cli-color@~0.1.6:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/cli-color/-/cli-color-0.1.7.tgz#adc3200fa471cc211b0da7f566b71e98b9d67347"
@@ -85,6 +90,13 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+"true-json-bigint@^0.4.4":
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/true-json-bigint/-/true-json-bigint-0.4.4.tgz#82a2a04a959958ae0eeb819e62481db4717bdf60"
+  integrity sha512-RE5QJtnrn50WicRYER45GNfnd/CTULiaW3EdtalvAFuMqt/e7XB5mZArEvBRItr8+/KxCpYMMDwcuGoXId/4KA==
+  dependencies:
+    bignumber.js "^7.0.0"
+
 wordwrap@>=0.0.2:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"