What is the difference between defining SymbolDictionary in spec vs. component?

[tukanos]

Hello @dalehenrich ,

I'm wondering what is the functional differences between defining SymbolDictionary in spec vs. component? Why it is possible to define them in both places? What is the thought process behind it? I tried to find it in the rowan documenation, but did not find it.

Here is an example from the project I'm working on:

spec - BitmapCharacterSet-Core.ston

...
  #platformProperties : {
    'gemstone' : {
      'allusers' : {
        #defaultSymbolDictName : 'XMLSupport'
      }
    }
  }
...

---

vs

---

component - Core.ston

...
#conditionalPackageMapSpecs : {
    'gemstone' : {
      'allusers' : {
        #packageNameToPlatformPropertiesMap : {
          'Collections-BitmapCharacterSet' : {
            'symbolDictName' : 'XMLSupport'
          }
        }
      }
    }
  }
...