Create Orange Mini

[rfratto]

Orange Mini is a subset of the Orange language to be used for bootstrapping. It will be written in C++ and contain only the following features:

• Loose aliases
• Arrays
• Core builtin interfaces (Number, Ordered, etc.)
• C interoperability
• Type casting
• Classes
  • Inheritance
  • Properties
• Basic enumerators (C-style)
• Functions
• Type extensions
• Generics
• Interfaces
• Loops (for, while, do while)
• Packages and namespaces
• Pointers and references
• Basic preprocessor directives (#if)
• Privacy levels (private/protected/public/etc)
• Variables

The following features will not be available in the miniature version:

• Strict aliases
• Tuples and tuple unwrapping
• Short blocks, blocks as values
• Enums w/ values
• Switch statement
• Default values for parameters
• Named arguments
• Implicit generics
• Partial classes
• Full UTF-8 support in source files
• Placeholder (_) variable
• Closures
• Lambdas
• Generic constraints

The only binary Orange Mini will produce is oc. It will take in a series of .or files and produce either an executable or a library. It will link to libc by default, but can link to no other libraries. Using orange libraries with oc requires passing in all of their source files.